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gerrit-public.fairphone.software / fp2-dev / platform / external / libxml2 / 032268145fad72bbf00c944c1f6a067e5da4a1e0 / . / relaxng.c
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/*
* relaxng.c : implementation of the Relax-NG handling and validity checking
*
* See Copyright for the status of this software.
*
* Daniel Veillard <veillard@redhat.com>
*/
/**
* TODO:
* - add support for DTD compatibility spec
* http://www.oasis-open.org/committees/relax-ng/compatibility-20011203.html
* - report better mem allocations pbms at runtime and abort immediately.
*/
#define IN_LIBXML
#include "libxml.h"
#ifdef LIBXML_SCHEMAS_ENABLED
#include <string.h>
#include <stdio.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/hash.h>
#include <libxml/uri.h>
#include <libxml/relaxng.h>
#include <libxml/xmlschemastypes.h>
#include <libxml/xmlautomata.h>
#include <libxml/xmlregexp.h>
#include <libxml/xmlschemastypes.h>
/*
* The Relax-NG namespace
*/
static const xmlChar *xmlRelaxNGNs = (const xmlChar *)
"http://relaxng.org/ns/structure/1.0";
#define IS_RELAXNG(node, type) \
((node != NULL) && (node->ns != NULL) && \
(xmlStrEqual(node->name, (const xmlChar *) type)) && \
(xmlStrEqual(node->ns->href, xmlRelaxNGNs)))
/* #define DEBUG 1 */
/* #define DEBUG_GRAMMAR 1 */
/* #define DEBUG_CONTENT 1 */
/* #define DEBUG_TYPE 1 */
/* #define DEBUG_VALID 1 */
/* #define DEBUG_INTERLEAVE 1 */
/* #define DEBUG_LIST 1 */
/* #define DEBUG_INCLUDE */
/* #define DEBUG_ERROR 1 */
/* #define DEBUG_COMPILE 1 */
/* #define DEBUG_PROGRESSIVE 1 */
#define MAX_ERROR 5
#define TODO \
xmlGenericError(xmlGenericErrorContext, \
"Unimplemented block at %s:%d\n", \
__FILE__, __LINE__);
typedef struct _xmlRelaxNGSchema xmlRelaxNGSchema;
typedef xmlRelaxNGSchema *xmlRelaxNGSchemaPtr;
typedef struct _xmlRelaxNGDefine xmlRelaxNGDefine;
typedef xmlRelaxNGDefine *xmlRelaxNGDefinePtr;
typedef struct _xmlRelaxNGDocument xmlRelaxNGDocument;
typedef xmlRelaxNGDocument *xmlRelaxNGDocumentPtr;
typedef struct _xmlRelaxNGInclude xmlRelaxNGInclude;
typedef xmlRelaxNGInclude *xmlRelaxNGIncludePtr;
typedef enum {
XML_RELAXNG_COMBINE_UNDEFINED = 0, /* undefined */
XML_RELAXNG_COMBINE_CHOICE, /* choice */
XML_RELAXNG_COMBINE_INTERLEAVE /* interleave */
} xmlRelaxNGCombine;
typedef enum {
XML_RELAXNG_CONTENT_ERROR = -1,
XML_RELAXNG_CONTENT_EMPTY = 0,
XML_RELAXNG_CONTENT_SIMPLE,
XML_RELAXNG_CONTENT_COMPLEX
} xmlRelaxNGContentType;
typedef struct _xmlRelaxNGGrammar xmlRelaxNGGrammar;
typedef xmlRelaxNGGrammar *xmlRelaxNGGrammarPtr;
struct _xmlRelaxNGGrammar {
xmlRelaxNGGrammarPtr parent; /* the parent grammar if any */
xmlRelaxNGGrammarPtr children; /* the children grammar if any */
xmlRelaxNGGrammarPtr next; /* the next grammar if any */
xmlRelaxNGDefinePtr start; /* <start> content */
xmlRelaxNGCombine combine; /* the default combine value */
xmlRelaxNGDefinePtr startList; /* list of <start> definitions */
xmlHashTablePtr defs; /* define* */
xmlHashTablePtr refs; /* references */
};
typedef enum {
XML_RELAXNG_NOOP = -1, /* a no operation from simplification */
XML_RELAXNG_EMPTY = 0, /* an empty pattern */
XML_RELAXNG_NOT_ALLOWED, /* not allowed top */
XML_RELAXNG_EXCEPT, /* except present in nameclass defs */
XML_RELAXNG_TEXT, /* textual content */
XML_RELAXNG_ELEMENT, /* an element */
XML_RELAXNG_DATATYPE, /* extenal data type definition */
XML_RELAXNG_PARAM, /* extenal data type parameter */
XML_RELAXNG_VALUE, /* value from an extenal data type definition */
XML_RELAXNG_LIST, /* a list of patterns */
XML_RELAXNG_ATTRIBUTE, /* an attrbute following a pattern */
XML_RELAXNG_DEF, /* a definition */
XML_RELAXNG_REF, /* reference to a definition */
XML_RELAXNG_EXTERNALREF, /* reference to an external def */
XML_RELAXNG_PARENTREF, /* reference to a def in the parent grammar */
XML_RELAXNG_OPTIONAL, /* optional patterns */
XML_RELAXNG_ZEROORMORE, /* zero or more non empty patterns */
XML_RELAXNG_ONEORMORE, /* one or more non empty patterns */
XML_RELAXNG_CHOICE, /* a choice between non empty patterns */
XML_RELAXNG_GROUP, /* a pair/group of non empty patterns */
XML_RELAXNG_INTERLEAVE, /* interleaving choice of non-empty patterns */
XML_RELAXNG_START /* Used to keep track of starts on grammars */
} xmlRelaxNGType;
#define IS_NULLABLE (1 << 0)
#define IS_NOT_NULLABLE (1 << 1)
#define IS_INDETERMINIST (1 << 2)
#define IS_MIXED (1 << 3)
#define IS_TRIABLE (1 << 4)
#define IS_PROCESSED (1 << 5)
#define IS_COMPILABLE (1 << 6)
#define IS_NOT_COMPILABLE (1 << 7)
struct _xmlRelaxNGDefine {
xmlRelaxNGType type; /* the type of definition */
xmlNodePtr node; /* the node in the source */
xmlChar *name; /* the element local name if present */
xmlChar *ns; /* the namespace local name if present */
xmlChar *value; /* value when available */
void *data; /* data lib or specific pointer */
xmlRelaxNGDefinePtr content; /* the expected content */
xmlRelaxNGDefinePtr parent; /* the parent definition, if any */
xmlRelaxNGDefinePtr next; /* list within grouping sequences */
xmlRelaxNGDefinePtr attrs; /* list of attributes for elements */
xmlRelaxNGDefinePtr nameClass; /* the nameClass definition if any */
xmlRelaxNGDefinePtr nextHash; /* next define in defs/refs hash tables */
short depth; /* used for the cycle detection */
short dflags; /* define related flags */
xmlRegexpPtr contModel; /* a compiled content model if available */
};
/**
* _xmlRelaxNG:
*
* A RelaxNGs definition
*/
struct _xmlRelaxNG {
void *_private; /* unused by the library for users or bindings */
xmlRelaxNGGrammarPtr topgrammar;
xmlDocPtr doc;
int idref; /* requires idref checking */
xmlHashTablePtr defs; /* define */
xmlHashTablePtr refs; /* references */
xmlRelaxNGDocumentPtr documents; /* all the documents loaded */
xmlRelaxNGIncludePtr includes; /* all the includes loaded */
int defNr; /* number of defines used */
xmlRelaxNGDefinePtr *defTab; /* pointer to the allocated definitions */
};
#define XML_RELAXNG_IN_ATTRIBUTE (1 << 0)
#define XML_RELAXNG_IN_ONEORMORE (1 << 1)
#define XML_RELAXNG_IN_LIST (1 << 2)
#define XML_RELAXNG_IN_DATAEXCEPT (1 << 3)
#define XML_RELAXNG_IN_START (1 << 4)
#define XML_RELAXNG_IN_OOMGROUP (1 << 5)
#define XML_RELAXNG_IN_OOMINTERLEAVE (1 << 6)
#define XML_RELAXNG_IN_EXTERNALREF (1 << 7)
#define XML_RELAXNG_IN_ANYEXCEPT (1 << 8)
#define XML_RELAXNG_IN_NSEXCEPT (1 << 9)
struct _xmlRelaxNGParserCtxt {
void *userData; /* user specific data block */
xmlRelaxNGValidityErrorFunc error; /* the callback in case of errors */
xmlRelaxNGValidityWarningFunc warning; /* the callback in case of warning */
xmlStructuredErrorFunc serror;
xmlRelaxNGValidErr err;
xmlRelaxNGPtr schema; /* The schema in use */
xmlRelaxNGGrammarPtr grammar; /* the current grammar */
xmlRelaxNGGrammarPtr parentgrammar; /* the parent grammar */
int flags; /* parser flags */
int nbErrors; /* number of errors at parse time */
int nbWarnings; /* number of warnings at parse time */
const xmlChar *define; /* the current define scope */
xmlRelaxNGDefinePtr def; /* the current define */
int nbInterleaves;
xmlHashTablePtr interleaves; /* keep track of all the interleaves */
xmlRelaxNGDocumentPtr documents; /* all the documents loaded */
xmlRelaxNGIncludePtr includes; /* all the includes loaded */
xmlChar *URL;
xmlDocPtr document;
int defNr; /* number of defines used */
int defMax; /* number of defines aloocated */
xmlRelaxNGDefinePtr *defTab; /* pointer to the allocated definitions */
const char *buffer;
int size;
/* the document stack */
xmlRelaxNGDocumentPtr doc; /* Current parsed external ref */
int docNr; /* Depth of the parsing stack */
int docMax; /* Max depth of the parsing stack */
xmlRelaxNGDocumentPtr *docTab; /* array of docs */
/* the include stack */
xmlRelaxNGIncludePtr inc; /* Current parsed include */
int incNr; /* Depth of the include parsing stack */
int incMax; /* Max depth of the parsing stack */
xmlRelaxNGIncludePtr *incTab; /* array of incs */
int idref; /* requires idref checking */
/* used to compile content models */
xmlAutomataPtr am; /* the automata */
xmlAutomataStatePtr state; /* used to build the automata */
int crng; /* compact syntax and other flags */
};
#define FLAGS_IGNORABLE 1
#define FLAGS_NEGATIVE 2
#define FLAGS_MIXED_CONTENT 4
/**
* xmlRelaxNGInterleaveGroup:
*
* A RelaxNGs partition set associated to lists of definitions
*/
typedef struct _xmlRelaxNGInterleaveGroup xmlRelaxNGInterleaveGroup;
typedef xmlRelaxNGInterleaveGroup *xmlRelaxNGInterleaveGroupPtr;
struct _xmlRelaxNGInterleaveGroup {
xmlRelaxNGDefinePtr rule; /* the rule to satisfy */
xmlRelaxNGDefinePtr *defs; /* the array of element definitions */
xmlRelaxNGDefinePtr *attrs; /* the array of attributes definitions */
};
#define IS_DETERMINIST 1
#define IS_NEEDCHECK 2
/**
* xmlRelaxNGPartitions:
*
* A RelaxNGs partition associated to an interleave group
*/
typedef struct _xmlRelaxNGPartition xmlRelaxNGPartition;
typedef xmlRelaxNGPartition *xmlRelaxNGPartitionPtr;
struct _xmlRelaxNGPartition {
int nbgroups; /* number of groups in the partitions */
xmlHashTablePtr triage; /* hash table used to direct nodes to the
* right group when possible */
int flags; /* determinist ? */
xmlRelaxNGInterleaveGroupPtr *groups;
};
/**
* xmlRelaxNGValidState:
*
* A RelaxNGs validation state
*/
#define MAX_ATTR 20
typedef struct _xmlRelaxNGValidState xmlRelaxNGValidState;
typedef xmlRelaxNGValidState *xmlRelaxNGValidStatePtr;
struct _xmlRelaxNGValidState {
xmlNodePtr node; /* the current node */
xmlNodePtr seq; /* the sequence of children left to validate */
int nbAttrs; /* the number of attributes */
int maxAttrs; /* the size of attrs */
int nbAttrLeft; /* the number of attributes left to validate */
xmlChar *value; /* the value when operating on string */
xmlChar *endvalue; /* the end value when operating on string */
xmlAttrPtr *attrs; /* the array of attributes */
};
/**
* xmlRelaxNGStates:
*
* A RelaxNGs container for validation state
*/
typedef struct _xmlRelaxNGStates xmlRelaxNGStates;
typedef xmlRelaxNGStates *xmlRelaxNGStatesPtr;
struct _xmlRelaxNGStates {
int nbState; /* the number of states */
int maxState; /* the size of the array */
xmlRelaxNGValidStatePtr *tabState;
};
#define ERROR_IS_DUP 1
/**
* xmlRelaxNGValidError:
*
* A RelaxNGs validation error
*/
typedef struct _xmlRelaxNGValidError xmlRelaxNGValidError;
typedef xmlRelaxNGValidError *xmlRelaxNGValidErrorPtr;
struct _xmlRelaxNGValidError {
xmlRelaxNGValidErr err; /* the error number */
int flags; /* flags */
xmlNodePtr node; /* the current node */
xmlNodePtr seq; /* the current child */
const xmlChar *arg1; /* first arg */
const xmlChar *arg2; /* second arg */
};
/**
* xmlRelaxNGValidCtxt:
*
* A RelaxNGs validation context
*/
struct _xmlRelaxNGValidCtxt {
void *userData; /* user specific data block */
xmlRelaxNGValidityErrorFunc error; /* the callback in case of errors */
xmlRelaxNGValidityWarningFunc warning; /* the callback in case of warning */
xmlStructuredErrorFunc serror;
int nbErrors; /* number of errors in validation */
xmlRelaxNGPtr schema; /* The schema in use */
xmlDocPtr doc; /* the document being validated */
int flags; /* validation flags */
int depth; /* validation depth */
int idref; /* requires idref checking */
int errNo; /* the first error found */
/*
* Errors accumulated in branches may have to be stacked to be
* provided back when it's sure they affect validation.
*/
xmlRelaxNGValidErrorPtr err; /* Last error */
int errNr; /* Depth of the error stack */
int errMax; /* Max depth of the error stack */
xmlRelaxNGValidErrorPtr errTab; /* stack of errors */
xmlRelaxNGValidStatePtr state; /* the current validation state */
xmlRelaxNGStatesPtr states; /* the accumulated state list */
xmlRelaxNGStatesPtr freeState; /* the pool of free valid states */
int freeStatesNr;
int freeStatesMax;
xmlRelaxNGStatesPtr *freeStates; /* the pool of free state groups */
/*
* This is used for "progressive" validation
*/
xmlRegExecCtxtPtr elem; /* the current element regexp */
int elemNr; /* the number of element validated */
int elemMax; /* the max depth of elements */
xmlRegExecCtxtPtr *elemTab; /* the stack of regexp runtime */
int pstate; /* progressive state */
xmlNodePtr pnode; /* the current node */
xmlRelaxNGDefinePtr pdef; /* the non-streamable definition */
int perr; /* signal error in content model
* outside the regexp */
};
/**
* xmlRelaxNGInclude:
*
* Structure associated to a RelaxNGs document element
*/
struct _xmlRelaxNGInclude {
xmlRelaxNGIncludePtr next; /* keep a chain of includes */
xmlChar *href; /* the normalized href value */
xmlDocPtr doc; /* the associated XML document */
xmlRelaxNGDefinePtr content; /* the definitions */
xmlRelaxNGPtr schema; /* the schema */
};
/**
* xmlRelaxNGDocument:
*
* Structure associated to a RelaxNGs document element
*/
struct _xmlRelaxNGDocument {
xmlRelaxNGDocumentPtr next; /* keep a chain of documents */
xmlChar *href; /* the normalized href value */
xmlDocPtr doc; /* the associated XML document */
xmlRelaxNGDefinePtr content; /* the definitions */
xmlRelaxNGPtr schema; /* the schema */
};
/************************************************************************
* *
* Some factorized error routines *
* *
************************************************************************/
/**
* xmlRngPErrMemory:
* @ctxt: an Relax-NG parser context
* @extra: extra informations
*
* Handle a redefinition of attribute error
*/
static void
xmlRngPErrMemory(xmlRelaxNGParserCtxtPtr ctxt, const char *extra)
{
xmlStructuredErrorFunc schannel = NULL;
xmlGenericErrorFunc channel = NULL;
void *data = NULL;
if (ctxt != NULL) {
channel = ctxt->error;
data = ctxt->userData;
ctxt->nbErrors++;
schannel = ctxt->serror;
}
if (extra)
__xmlRaiseError(schannel, channel, data,
NULL, NULL, XML_FROM_RELAXNGP,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
NULL, NULL, 0, 0,
"Memory allocation failed : %s\n", extra);
else
__xmlRaiseError(schannel, channel, data,
NULL, NULL, XML_FROM_RELAXNGP,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
NULL, NULL, 0, 0, "Memory allocation failed\n");
}
/**
* xmlRngVErrMemory:
* @ctxt: a Relax-NG validation context
* @extra: extra informations
*
* Handle a redefinition of attribute error
*/
static void
xmlRngVErrMemory(xmlRelaxNGValidCtxtPtr ctxt, const char *extra)
{
xmlStructuredErrorFunc schannel = NULL;
xmlGenericErrorFunc channel = NULL;
void *data = NULL;
if (ctxt != NULL) {
channel = ctxt->error;
data = ctxt->userData;
ctxt->nbErrors++;
schannel = ctxt->serror;
}
if (extra)
__xmlRaiseError(schannel, channel, data,
NULL, NULL, XML_FROM_RELAXNGV,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
NULL, NULL, 0, 0,
"Memory allocation failed : %s\n", extra);
else
__xmlRaiseError(schannel, channel, data,
NULL, NULL, XML_FROM_RELAXNGV,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
NULL, NULL, 0, 0, "Memory allocation failed\n");
}
/**
* xmlRngPErr:
* @ctxt: a Relax-NG parser context
* @node: the node raising the error
* @error: the error code
* @msg: message
* @str1: extra info
* @str2: extra info
*
* Handle a Relax NG Parsing error
*/
static void
xmlRngPErr(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node, int error,
const char *msg, const xmlChar * str1, const xmlChar * str2)
{
xmlStructuredErrorFunc schannel = NULL;
xmlGenericErrorFunc channel = NULL;
void *data = NULL;
if (ctxt != NULL) {
channel = ctxt->error;
data = ctxt->userData;
ctxt->nbErrors++;
schannel = ctxt->serror;
}
__xmlRaiseError(schannel, channel, data,
NULL, node, XML_FROM_RELAXNGP,
error, XML_ERR_ERROR, NULL, 0,
(const char *) str1, (const char *) str2, NULL, 0, 0,
msg, str1, str2);
}
/**
* xmlRngVErr:
* @ctxt: a Relax-NG validation context
* @node: the node raising the error
* @error: the error code
* @msg: message
* @str1: extra info
* @str2: extra info
*
* Handle a Relax NG Validation error
*/
static void
xmlRngVErr(xmlRelaxNGValidCtxtPtr ctxt, xmlNodePtr node, int error,
const char *msg, const xmlChar * str1, const xmlChar * str2)
{
xmlStructuredErrorFunc schannel = NULL;
xmlGenericErrorFunc channel = NULL;
void *data = NULL;
if (ctxt != NULL) {
channel = ctxt->error;
data = ctxt->userData;
ctxt->nbErrors++;
schannel = ctxt->serror;
}
__xmlRaiseError(schannel, channel, data,
NULL, node, XML_FROM_RELAXNGV,
error, XML_ERR_ERROR, NULL, 0,
(const char *) str1, (const char *) str2, NULL, 0, 0,
msg, str1, str2);
}
/************************************************************************
* *
* Preliminary type checking interfaces *
* *
************************************************************************/
/**
* xmlRelaxNGTypeHave:
* @data: data needed for the library
* @type: the type name
* @value: the value to check
*
* Function provided by a type library to check if a type is exported
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
typedef int (*xmlRelaxNGTypeHave) (void *data, const xmlChar * type);
/**
* xmlRelaxNGTypeCheck:
* @data: data needed for the library
* @type: the type name
* @value: the value to check
* @result: place to store the result if needed
*
* Function provided by a type library to check if a value match a type
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
typedef int (*xmlRelaxNGTypeCheck) (void *data, const xmlChar * type,
const xmlChar * value, void **result,
xmlNodePtr node);
/**
* xmlRelaxNGFacetCheck:
* @data: data needed for the library
* @type: the type name
* @facet: the facet name
* @val: the facet value
* @strval: the string value
* @value: the value to check
*
* Function provided by a type library to check a value facet
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
typedef int (*xmlRelaxNGFacetCheck) (void *data, const xmlChar * type,
const xmlChar * facet,
const xmlChar * val,
const xmlChar * strval, void *value);
/**
* xmlRelaxNGTypeFree:
* @data: data needed for the library
* @result: the value to free
*
* Function provided by a type library to free a returned result
*/
typedef void (*xmlRelaxNGTypeFree) (void *data, void *result);
/**
* xmlRelaxNGTypeCompare:
* @data: data needed for the library
* @type: the type name
* @value1: the first value
* @value2: the second value
*
* Function provided by a type library to compare two values accordingly
* to a type.
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
typedef int (*xmlRelaxNGTypeCompare) (void *data, const xmlChar * type,
const xmlChar * value1,
xmlNodePtr ctxt1,
void *comp1,
const xmlChar * value2,
xmlNodePtr ctxt2);
typedef struct _xmlRelaxNGTypeLibrary xmlRelaxNGTypeLibrary;
typedef xmlRelaxNGTypeLibrary *xmlRelaxNGTypeLibraryPtr;
struct _xmlRelaxNGTypeLibrary {
const xmlChar *namespace; /* the datatypeLibrary value */
void *data; /* data needed for the library */
xmlRelaxNGTypeHave have; /* the export function */
xmlRelaxNGTypeCheck check; /* the checking function */
xmlRelaxNGTypeCompare comp; /* the compare function */
xmlRelaxNGFacetCheck facet; /* the facet check function */
xmlRelaxNGTypeFree freef; /* the freeing function */
};
/************************************************************************
* *
* Allocation functions *
* *
************************************************************************/
static void xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar);
static void xmlRelaxNGFreeDefine(xmlRelaxNGDefinePtr define);
static void xmlRelaxNGNormExtSpace(xmlChar * value);
static void xmlRelaxNGFreeInnerSchema(xmlRelaxNGPtr schema);
static int xmlRelaxNGEqualValidState(xmlRelaxNGValidCtxtPtr ctxt
ATTRIBUTE_UNUSED,
xmlRelaxNGValidStatePtr state1,
xmlRelaxNGValidStatePtr state2);
static void xmlRelaxNGFreeValidState(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidStatePtr state);
/**
* xmlRelaxNGFreeDocument:
* @docu: a document structure
*
* Deallocate a RelaxNG document structure.
*/
static void
xmlRelaxNGFreeDocument(xmlRelaxNGDocumentPtr docu)
{
if (docu == NULL)
return;
if (docu->href != NULL)
xmlFree(docu->href);
if (docu->doc != NULL)
xmlFreeDoc(docu->doc);
if (docu->schema != NULL)
xmlRelaxNGFreeInnerSchema(docu->schema);
xmlFree(docu);
}
/**
* xmlRelaxNGFreeDocumentList:
* @docu: a list of document structure
*
* Deallocate a RelaxNG document structures.
*/
static void
xmlRelaxNGFreeDocumentList(xmlRelaxNGDocumentPtr docu)
{
xmlRelaxNGDocumentPtr next;
while (docu != NULL) {
next = docu->next;
xmlRelaxNGFreeDocument(docu);
docu = next;
}
}
/**
* xmlRelaxNGFreeInclude:
* @incl: a include structure
*
* Deallocate a RelaxNG include structure.
*/
static void
xmlRelaxNGFreeInclude(xmlRelaxNGIncludePtr incl)
{
if (incl == NULL)
return;
if (incl->href != NULL)
xmlFree(incl->href);
if (incl->doc != NULL)
xmlFreeDoc(incl->doc);
if (incl->schema != NULL)
xmlRelaxNGFree(incl->schema);
xmlFree(incl);
}
/**
* xmlRelaxNGFreeIncludeList:
* @incl: a include structure list
*
* Deallocate a RelaxNG include structure.
*/
static void
xmlRelaxNGFreeIncludeList(xmlRelaxNGIncludePtr incl)
{
xmlRelaxNGIncludePtr next;
while (incl != NULL) {
next = incl->next;
xmlRelaxNGFreeInclude(incl);
incl = next;
}
}
/**
* xmlRelaxNGNewRelaxNG:
* @ctxt: a Relax-NG validation context (optional)
*
* Allocate a new RelaxNG structure.
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlRelaxNGPtr
xmlRelaxNGNewRelaxNG(xmlRelaxNGParserCtxtPtr ctxt)
{
xmlRelaxNGPtr ret;
ret = (xmlRelaxNGPtr) xmlMalloc(sizeof(xmlRelaxNG));
if (ret == NULL) {
xmlRngPErrMemory(ctxt, NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNG));
return (ret);
}
/**
* xmlRelaxNGFreeInnerSchema:
* @schema: a schema structure
*
* Deallocate a RelaxNG schema structure.
*/
static void
xmlRelaxNGFreeInnerSchema(xmlRelaxNGPtr schema)
{
if (schema == NULL)
return;
if (schema->doc != NULL)
xmlFreeDoc(schema->doc);
if (schema->defTab != NULL) {
int i;
for (i = 0; i < schema->defNr; i++)
xmlRelaxNGFreeDefine(schema->defTab[i]);
xmlFree(schema->defTab);
}
xmlFree(schema);
}
/**
* xmlRelaxNGFree:
* @schema: a schema structure
*
* Deallocate a RelaxNG structure.
*/
void
xmlRelaxNGFree(xmlRelaxNGPtr schema)
{
if (schema == NULL)
return;
if (schema->topgrammar != NULL)
xmlRelaxNGFreeGrammar(schema->topgrammar);
if (schema->doc != NULL)
xmlFreeDoc(schema->doc);
if (schema->documents != NULL)
xmlRelaxNGFreeDocumentList(schema->documents);
if (schema->includes != NULL)
xmlRelaxNGFreeIncludeList(schema->includes);
if (schema->defTab != NULL) {
int i;
for (i = 0; i < schema->defNr; i++)
xmlRelaxNGFreeDefine(schema->defTab[i]);
xmlFree(schema->defTab);
}
xmlFree(schema);
}
/**
* xmlRelaxNGNewGrammar:
* @ctxt: a Relax-NG validation context (optional)
*
* Allocate a new RelaxNG grammar.
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlRelaxNGGrammarPtr
xmlRelaxNGNewGrammar(xmlRelaxNGParserCtxtPtr ctxt)
{
xmlRelaxNGGrammarPtr ret;
ret = (xmlRelaxNGGrammarPtr) xmlMalloc(sizeof(xmlRelaxNGGrammar));
if (ret == NULL) {
xmlRngPErrMemory(ctxt, NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGGrammar));
return (ret);
}
/**
* xmlRelaxNGFreeGrammar:
* @grammar: a grammar structure
*
* Deallocate a RelaxNG grammar structure.
*/
static void
xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar)
{
if (grammar == NULL)
return;
if (grammar->children != NULL) {
xmlRelaxNGFreeGrammar(grammar->children);
}
if (grammar->next != NULL) {
xmlRelaxNGFreeGrammar(grammar->next);
}
if (grammar->refs != NULL) {
xmlHashFree(grammar->refs, NULL);
}
if (grammar->defs != NULL) {
xmlHashFree(grammar->defs, NULL);
}
xmlFree(grammar);
}
/**
* xmlRelaxNGNewDefine:
* @ctxt: a Relax-NG validation context
* @node: the node in the input document.
*
* Allocate a new RelaxNG define.
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGNewDefine(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDefinePtr ret;
if (ctxt->defMax == 0) {
ctxt->defMax = 16;
ctxt->defNr = 0;
ctxt->defTab = (xmlRelaxNGDefinePtr *)
xmlMalloc(ctxt->defMax * sizeof(xmlRelaxNGDefinePtr));
if (ctxt->defTab == NULL) {
xmlRngPErrMemory(ctxt, "allocating define\n");
return (NULL);
}
} else if (ctxt->defMax <= ctxt->defNr) {
xmlRelaxNGDefinePtr *tmp;
ctxt->defMax *= 2;
tmp = (xmlRelaxNGDefinePtr *) xmlRealloc(ctxt->defTab,
ctxt->defMax *
sizeof
(xmlRelaxNGDefinePtr));
if (tmp == NULL) {
xmlRngPErrMemory(ctxt, "allocating define\n");
return (NULL);
}
ctxt->defTab = tmp;
}
ret = (xmlRelaxNGDefinePtr) xmlMalloc(sizeof(xmlRelaxNGDefine));
if (ret == NULL) {
xmlRngPErrMemory(ctxt, "allocating define\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGDefine));
ctxt->defTab[ctxt->defNr++] = ret;
ret->node = node;
ret->depth = -1;
return (ret);
}
/**
* xmlRelaxNGFreePartition:
* @partitions: a partition set structure
*
* Deallocate RelaxNG partition set structures.
*/
static void
xmlRelaxNGFreePartition(xmlRelaxNGPartitionPtr partitions)
{
xmlRelaxNGInterleaveGroupPtr group;
int j;
if (partitions != NULL) {
if (partitions->groups != NULL) {
for (j = 0; j < partitions->nbgroups; j++) {
group = partitions->groups[j];
if (group != NULL) {
if (group->defs != NULL)
xmlFree(group->defs);
if (group->attrs != NULL)
xmlFree(group->attrs);
xmlFree(group);
}
}
xmlFree(partitions->groups);
}
if (partitions->triage != NULL) {
xmlHashFree(partitions->triage, NULL);
}
xmlFree(partitions);
}
}
/**
* xmlRelaxNGFreeDefine:
* @define: a define structure
*
* Deallocate a RelaxNG define structure.
*/
static void
xmlRelaxNGFreeDefine(xmlRelaxNGDefinePtr define)
{
if (define == NULL)
return;
if ((define->type == XML_RELAXNG_VALUE) && (define->attrs != NULL)) {
xmlRelaxNGTypeLibraryPtr lib;
lib = (xmlRelaxNGTypeLibraryPtr) define->data;
if ((lib != NULL) && (lib->freef != NULL))
lib->freef(lib->data, (void *) define->attrs);
}
if ((define->data != NULL) && (define->type == XML_RELAXNG_INTERLEAVE))
xmlRelaxNGFreePartition((xmlRelaxNGPartitionPtr) define->data);
if ((define->data != NULL) && (define->type == XML_RELAXNG_CHOICE))
xmlHashFree((xmlHashTablePtr) define->data, NULL);
if (define->name != NULL)
xmlFree(define->name);
if (define->ns != NULL)
xmlFree(define->ns);
if (define->value != NULL)
xmlFree(define->value);
if (define->contModel != NULL)
xmlRegFreeRegexp(define->contModel);
xmlFree(define);
}
/**
* xmlRelaxNGNewStates:
* @ctxt: a Relax-NG validation context
* @size: the default size for the container
*
* Allocate a new RelaxNG validation state container
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlRelaxNGStatesPtr
xmlRelaxNGNewStates(xmlRelaxNGValidCtxtPtr ctxt, int size)
{
xmlRelaxNGStatesPtr ret;
if ((ctxt != NULL) &&
(ctxt->freeState != NULL) && (ctxt->freeStatesNr > 0)) {
ctxt->freeStatesNr--;
ret = ctxt->freeStates[ctxt->freeStatesNr];
ret->nbState = 0;
return (ret);
}
if (size < 16)
size = 16;
ret = (xmlRelaxNGStatesPtr) xmlMalloc(sizeof(xmlRelaxNGStates) +
(size -
1) *
sizeof(xmlRelaxNGValidStatePtr));
if (ret == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
return (NULL);
}
ret->nbState = 0;
ret->maxState = size;
ret->tabState = (xmlRelaxNGValidStatePtr *) xmlMalloc((size) *
sizeof
(xmlRelaxNGValidStatePtr));
if (ret->tabState == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
xmlFree(ret);
return (NULL);
}
return (ret);
}
/**
* xmlRelaxNGAddStateUniq:
* @ctxt: a Relax-NG validation context
* @states: the states container
* @state: the validation state
*
* Add a RelaxNG validation state to the container without checking
* for unicity.
*
* Return 1 in case of success and 0 if this is a duplicate and -1 on error
*/
static int
xmlRelaxNGAddStatesUniq(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGStatesPtr states,
xmlRelaxNGValidStatePtr state)
{
if (state == NULL) {
return (-1);
}
if (states->nbState >= states->maxState) {
xmlRelaxNGValidStatePtr *tmp;
int size;
size = states->maxState * 2;
tmp = (xmlRelaxNGValidStatePtr *) xmlRealloc(states->tabState,
(size) *
sizeof
(xmlRelaxNGValidStatePtr));
if (tmp == NULL) {
xmlRngVErrMemory(ctxt, "adding states\n");
return (-1);
}
states->tabState = tmp;
states->maxState = size;
}
states->tabState[states->nbState++] = state;
return (1);
}
/**
* xmlRelaxNGAddState:
* @ctxt: a Relax-NG validation context
* @states: the states container
* @state: the validation state
*
* Add a RelaxNG validation state to the container
*
* Return 1 in case of success and 0 if this is a duplicate and -1 on error
*/
static int
xmlRelaxNGAddStates(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGStatesPtr states,
xmlRelaxNGValidStatePtr state)
{
int i;
if (state == NULL) {
return (-1);
}
if (states->nbState >= states->maxState) {
xmlRelaxNGValidStatePtr *tmp;
int size;
size = states->maxState * 2;
tmp = (xmlRelaxNGValidStatePtr *) xmlRealloc(states->tabState,
(size) *
sizeof
(xmlRelaxNGValidStatePtr));
if (tmp == NULL) {
xmlRngVErrMemory(ctxt, "adding states\n");
return (-1);
}
states->tabState = tmp;
states->maxState = size;
}
for (i = 0; i < states->nbState; i++) {
if (xmlRelaxNGEqualValidState(ctxt, state, states->tabState[i])) {
xmlRelaxNGFreeValidState(ctxt, state);
return (0);
}
}
states->tabState[states->nbState++] = state;
return (1);
}
/**
* xmlRelaxNGFreeStates:
* @ctxt: a Relax-NG validation context
* @states: teh container
*
* Free a RelaxNG validation state container
*/
static void
xmlRelaxNGFreeStates(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGStatesPtr states)
{
if (states == NULL)
return;
if ((ctxt != NULL) && (ctxt->freeStates == NULL)) {
ctxt->freeStatesMax = 40;
ctxt->freeStatesNr = 0;
ctxt->freeStates = (xmlRelaxNGStatesPtr *)
xmlMalloc(ctxt->freeStatesMax * sizeof(xmlRelaxNGStatesPtr));
if (ctxt->freeStates == NULL) {
xmlRngVErrMemory(ctxt, "storing states\n");
}
} else if ((ctxt != NULL)
&& (ctxt->freeStatesNr >= ctxt->freeStatesMax)) {
xmlRelaxNGStatesPtr *tmp;
tmp = (xmlRelaxNGStatesPtr *) xmlRealloc(ctxt->freeStates,
2 * ctxt->freeStatesMax *
sizeof
(xmlRelaxNGStatesPtr));
if (tmp == NULL) {
xmlRngVErrMemory(ctxt, "storing states\n");
xmlFree(states->tabState);
xmlFree(states);
return;
}
ctxt->freeStates = tmp;
ctxt->freeStatesMax *= 2;
}
if ((ctxt == NULL) || (ctxt->freeState == NULL)) {
xmlFree(states->tabState);
xmlFree(states);
} else {
ctxt->freeStates[ctxt->freeStatesNr++] = states;
}
}
/**
* xmlRelaxNGNewValidState:
* @ctxt: a Relax-NG validation context
* @node: the current node or NULL for the document
*
* Allocate a new RelaxNG validation state
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlRelaxNGValidStatePtr
xmlRelaxNGNewValidState(xmlRelaxNGValidCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGValidStatePtr ret;
xmlAttrPtr attr;
xmlAttrPtr attrs[MAX_ATTR];
int nbAttrs = 0;
xmlNodePtr root = NULL;
if (node == NULL) {
root = xmlDocGetRootElement(ctxt->doc);
if (root == NULL)
return (NULL);
} else {
attr = node->properties;
while (attr != NULL) {
if (nbAttrs < MAX_ATTR)
attrs[nbAttrs++] = attr;
else
nbAttrs++;
attr = attr->next;
}
}
if ((ctxt->freeState != NULL) && (ctxt->freeState->nbState > 0)) {
ctxt->freeState->nbState--;
ret = ctxt->freeState->tabState[ctxt->freeState->nbState];
} else {
ret =
(xmlRelaxNGValidStatePtr)
xmlMalloc(sizeof(xmlRelaxNGValidState));
if (ret == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGValidState));
}
ret->value = NULL;
ret->endvalue = NULL;
if (node == NULL) {
ret->node = (xmlNodePtr) ctxt->doc;
ret->seq = root;
} else {
ret->node = node;
ret->seq = node->children;
}
ret->nbAttrs = 0;
if (nbAttrs > 0) {
if (ret->attrs == NULL) {
if (nbAttrs < 4)
ret->maxAttrs = 4;
else
ret->maxAttrs = nbAttrs;
ret->attrs = (xmlAttrPtr *) xmlMalloc(ret->maxAttrs *
sizeof(xmlAttrPtr));
if (ret->attrs == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
return (ret);
}
} else if (ret->maxAttrs < nbAttrs) {
xmlAttrPtr *tmp;
tmp = (xmlAttrPtr *) xmlRealloc(ret->attrs, nbAttrs *
sizeof(xmlAttrPtr));
if (tmp == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
return (ret);
}
ret->attrs = tmp;
ret->maxAttrs = nbAttrs;
}
ret->nbAttrs = nbAttrs;
if (nbAttrs < MAX_ATTR) {
memcpy(ret->attrs, attrs, sizeof(xmlAttrPtr) * nbAttrs);
} else {
attr = node->properties;
nbAttrs = 0;
while (attr != NULL) {
ret->attrs[nbAttrs++] = attr;
attr = attr->next;
}
}
}
ret->nbAttrLeft = ret->nbAttrs;
return (ret);
}
/**
* xmlRelaxNGCopyValidState:
* @ctxt: a Relax-NG validation context
* @state: a validation state
*
* Copy the validation state
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlRelaxNGValidStatePtr
xmlRelaxNGCopyValidState(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidStatePtr state)
{
xmlRelaxNGValidStatePtr ret;
unsigned int maxAttrs;
xmlAttrPtr *attrs;
if (state == NULL)
return (NULL);
if ((ctxt->freeState != NULL) && (ctxt->freeState->nbState > 0)) {
ctxt->freeState->nbState--;
ret = ctxt->freeState->tabState[ctxt->freeState->nbState];
} else {
ret =
(xmlRelaxNGValidStatePtr)
xmlMalloc(sizeof(xmlRelaxNGValidState));
if (ret == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGValidState));
}
attrs = ret->attrs;
maxAttrs = ret->maxAttrs;
memcpy(ret, state, sizeof(xmlRelaxNGValidState));
ret->attrs = attrs;
ret->maxAttrs = maxAttrs;
if (state->nbAttrs > 0) {
if (ret->attrs == NULL) {
ret->maxAttrs = state->maxAttrs;
ret->attrs = (xmlAttrPtr *) xmlMalloc(ret->maxAttrs *
sizeof(xmlAttrPtr));
if (ret->attrs == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
ret->nbAttrs = 0;
return (ret);
}
} else if (ret->maxAttrs < state->nbAttrs) {
xmlAttrPtr *tmp;
tmp = (xmlAttrPtr *) xmlRealloc(ret->attrs, state->maxAttrs *
sizeof(xmlAttrPtr));
if (tmp == NULL) {
xmlRngVErrMemory(ctxt, "allocating states\n");
ret->nbAttrs = 0;
return (ret);
}
ret->maxAttrs = state->maxAttrs;
ret->attrs = tmp;
}
memcpy(ret->attrs, state->attrs,
state->nbAttrs * sizeof(xmlAttrPtr));
}
return (ret);
}
/**
* xmlRelaxNGEqualValidState:
* @ctxt: a Relax-NG validation context
* @state1: a validation state
* @state2: a validation state
*
* Compare the validation states for equality
*
* Returns 1 if equald, 0 otherwise
*/
static int
xmlRelaxNGEqualValidState(xmlRelaxNGValidCtxtPtr ctxt ATTRIBUTE_UNUSED,
xmlRelaxNGValidStatePtr state1,
xmlRelaxNGValidStatePtr state2)
{
int i;
if ((state1 == NULL) || (state2 == NULL))
return (0);
if (state1 == state2)
return (1);
if (state1->node != state2->node)
return (0);
if (state1->seq != state2->seq)
return (0);
if (state1->nbAttrLeft != state2->nbAttrLeft)
return (0);
if (state1->nbAttrs != state2->nbAttrs)
return (0);
if (state1->endvalue != state2->endvalue)
return (0);
if ((state1->value != state2->value) &&
(!xmlStrEqual(state1->value, state2->value)))
return (0);
for (i = 0; i < state1->nbAttrs; i++) {
if (state1->attrs[i] != state2->attrs[i])
return (0);
}
return (1);
}
/**
* xmlRelaxNGFreeValidState:
* @state: a validation state structure
*
* Deallocate a RelaxNG validation state structure.
*/
static void
xmlRelaxNGFreeValidState(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidStatePtr state)
{
if (state == NULL)
return;
if ((ctxt != NULL) && (ctxt->freeState == NULL)) {
ctxt->freeState = xmlRelaxNGNewStates(ctxt, 40);
}
if ((ctxt == NULL) || (ctxt->freeState == NULL)) {
if (state->attrs != NULL)
xmlFree(state->attrs);
xmlFree(state);
} else {
xmlRelaxNGAddStatesUniq(ctxt, ctxt->freeState, state);
}
}
/************************************************************************
* *
* Semi internal functions *
* *
************************************************************************/
/**
* xmlRelaxParserSetFlag:
* @ctxt: a RelaxNG parser context
* @flags: a set of flags values
*
* Semi private function used to pass informations to a parser context
* which are a combination of xmlRelaxNGParserFlag .
*
* Returns 0 if success and -1 in case of error
*/
int
xmlRelaxParserSetFlag(xmlRelaxNGParserCtxtPtr ctxt, int flags)
{
if (ctxt == NULL) return(-1);
if (flags & XML_RELAXNGP_FREE_DOC) {
ctxt->crng |= XML_RELAXNGP_FREE_DOC;
flags -= XML_RELAXNGP_FREE_DOC;
}
if (flags & XML_RELAXNGP_CRNG) {
ctxt->crng |= XML_RELAXNGP_CRNG;
flags -= XML_RELAXNGP_CRNG;
}
if (flags != 0) return(-1);
return(0);
}
/************************************************************************
* *
* Document functions *
* *
************************************************************************/
static xmlDocPtr xmlRelaxNGCleanupDoc(xmlRelaxNGParserCtxtPtr ctxt,
xmlDocPtr doc);
/**
* xmlRelaxNGIncludePush:
* @ctxt: the parser context
* @value: the element doc
*
* Pushes a new include on top of the include stack
*
* Returns 0 in case of error, the index in the stack otherwise
*/
static int
xmlRelaxNGIncludePush(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGIncludePtr value)
{
if (ctxt->incTab == NULL) {
ctxt->incMax = 4;
ctxt->incNr = 0;
ctxt->incTab =
(xmlRelaxNGIncludePtr *) xmlMalloc(ctxt->incMax *
sizeof(ctxt->incTab[0]));
if (ctxt->incTab == NULL) {
xmlRngPErrMemory(ctxt, "allocating include\n");
return (0);
}
}
if (ctxt->incNr >= ctxt->incMax) {
ctxt->incMax *= 2;
ctxt->incTab =
(xmlRelaxNGIncludePtr *) xmlRealloc(ctxt->incTab,
ctxt->incMax *
sizeof(ctxt->incTab[0]));
if (ctxt->incTab == NULL) {
xmlRngPErrMemory(ctxt, "allocating include\n");
return (0);
}
}
ctxt->incTab[ctxt->incNr] = value;
ctxt->inc = value;
return (ctxt->incNr++);
}
/**
* xmlRelaxNGIncludePop:
* @ctxt: the parser context
*
* Pops the top include from the include stack
*
* Returns the include just removed
*/
static xmlRelaxNGIncludePtr
xmlRelaxNGIncludePop(xmlRelaxNGParserCtxtPtr ctxt)
{
xmlRelaxNGIncludePtr ret;
if (ctxt->incNr <= 0)
return (0);
ctxt->incNr--;
if (ctxt->incNr > 0)
ctxt->inc = ctxt->incTab[ctxt->incNr - 1];
else
ctxt->inc = NULL;
ret = ctxt->incTab[ctxt->incNr];
ctxt->incTab[ctxt->incNr] = 0;
return (ret);
}
/**
* xmlRelaxNGRemoveRedefine:
* @ctxt: the parser context
* @URL: the normalized URL
* @target: the included target
* @name: the define name to eliminate
*
* Applies the elimination algorithm of 4.7
*
* Returns 0 in case of error, 1 in case of success.
*/
static int
xmlRelaxNGRemoveRedefine(xmlRelaxNGParserCtxtPtr ctxt,
const xmlChar * URL ATTRIBUTE_UNUSED,
xmlNodePtr target, const xmlChar * name)
{
int found = 0;
xmlNodePtr tmp, tmp2;
xmlChar *name2;
#ifdef DEBUG_INCLUDE
if (name == NULL)
xmlGenericError(xmlGenericErrorContext,
"Elimination of <include> start from %s\n", URL);
else
xmlGenericError(xmlGenericErrorContext,
"Elimination of <include> define %s from %s\n",
name, URL);
#endif
tmp = target;
while (tmp != NULL) {
tmp2 = tmp->next;
if ((name == NULL) && (IS_RELAXNG(tmp, "start"))) {
found = 1;
xmlUnlinkNode(tmp);
xmlFreeNode(tmp);
} else if ((name != NULL) && (IS_RELAXNG(tmp, "define"))) {
name2 = xmlGetProp(tmp, BAD_CAST "name");
xmlRelaxNGNormExtSpace(name2);
if (name2 != NULL) {
if (xmlStrEqual(name, name2)) {
found = 1;
xmlUnlinkNode(tmp);
xmlFreeNode(tmp);
}
xmlFree(name2);
}
} else if (IS_RELAXNG(tmp, "include")) {
xmlChar *href = NULL;
xmlRelaxNGDocumentPtr inc = tmp->psvi;
if ((inc != NULL) && (inc->doc != NULL) &&
(inc->doc->children != NULL)) {
if (xmlStrEqual
(inc->doc->children->name, BAD_CAST "grammar")) {
#ifdef DEBUG_INCLUDE
href = xmlGetProp(tmp, BAD_CAST "href");
#endif
if (xmlRelaxNGRemoveRedefine(ctxt, href,
inc->doc->children->
children, name) == 1) {
found = 1;
}
if (href != NULL)
xmlFree(href);
}
}
}
tmp = tmp2;
}
return (found);
}
/**
* xmlRelaxNGLoadInclude:
* @ctxt: the parser context
* @URL: the normalized URL
* @node: the include node.
* @ns: the namespace passed from the context.
*
* First lookup if the document is already loaded into the parser context,
* check against recursion. If not found the resource is loaded and
* the content is preprocessed before being returned back to the caller.
*
* Returns the xmlRelaxNGIncludePtr or NULL in case of error
*/
static xmlRelaxNGIncludePtr
xmlRelaxNGLoadInclude(xmlRelaxNGParserCtxtPtr ctxt, const xmlChar * URL,
xmlNodePtr node, const xmlChar * ns)
{
xmlRelaxNGIncludePtr ret = NULL;
xmlDocPtr doc;
int i;
xmlNodePtr root, cur;
#ifdef DEBUG_INCLUDE
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGLoadInclude(%s)\n", URL);
#endif
/*
* check against recursion in the stack
*/
for (i = 0; i < ctxt->incNr; i++) {
if (xmlStrEqual(ctxt->incTab[i]->href, URL)) {
xmlRngPErr(ctxt, NULL, XML_RNGP_INCLUDE_RECURSE,
"Detected an Include recursion for %s\n", URL,
NULL);
return (NULL);
}
}
/*
* load the document
*/
doc = xmlReadFile((const char *) URL,NULL,0);
if (doc == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_PARSE_ERROR,
"xmlRelaxNG: could not load %s\n", URL, NULL);
return (NULL);
}
#ifdef DEBUG_INCLUDE
xmlGenericError(xmlGenericErrorContext, "Parsed %s Okay\n", URL);
#endif
/*
* Allocate the document structures and register it first.
*/
ret = (xmlRelaxNGIncludePtr) xmlMalloc(sizeof(xmlRelaxNGInclude));
if (ret == NULL) {
xmlRngPErrMemory(ctxt, "allocating include\n");
xmlFreeDoc(doc);
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGInclude));
ret->doc = doc;
ret->href = xmlStrdup(URL);
ret->next = ctxt->includes;
ctxt->includes = ret;
/*
* transmit the ns if needed
*/
if (ns != NULL) {
root = xmlDocGetRootElement(doc);
if (root != NULL) {
if (xmlHasProp(root, BAD_CAST "ns") == NULL) {
xmlSetProp(root, BAD_CAST "ns", ns);
}
}
}
/*
* push it on the stack
*/
xmlRelaxNGIncludePush(ctxt, ret);
/*
* Some preprocessing of the document content, this include recursing
* in the include stack.
*/
#ifdef DEBUG_INCLUDE
xmlGenericError(xmlGenericErrorContext, "cleanup of %s\n", URL);
#endif
doc = xmlRelaxNGCleanupDoc(ctxt, doc);
if (doc == NULL) {
ctxt->inc = NULL;
return (NULL);
}
/*
* Pop up the include from the stack
*/
xmlRelaxNGIncludePop(ctxt);
#ifdef DEBUG_INCLUDE
xmlGenericError(xmlGenericErrorContext, "Checking of %s\n", URL);
#endif
/*
* Check that the top element is a grammar
*/
root = xmlDocGetRootElement(doc);
if (root == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY,
"xmlRelaxNG: included document is empty %s\n", URL,
NULL);
return (NULL);
}
if (!IS_RELAXNG(root, "grammar")) {
xmlRngPErr(ctxt, node, XML_RNGP_GRAMMAR_MISSING,
"xmlRelaxNG: included document %s root is not a grammar\n",
URL, NULL);
return (NULL);
}
/*
* Elimination of redefined rules in the include.
*/
cur = node->children;
while (cur != NULL) {
if (IS_RELAXNG(cur, "start")) {
int found = 0;
found =
xmlRelaxNGRemoveRedefine(ctxt, URL, root->children, NULL);
if (!found) {
xmlRngPErr(ctxt, node, XML_RNGP_START_MISSING,
"xmlRelaxNG: include %s has a start but not the included grammar\n",
URL, NULL);
}
} else if (IS_RELAXNG(cur, "define")) {
xmlChar *name;
name = xmlGetProp(cur, BAD_CAST "name");
if (name == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_NAME_MISSING,
"xmlRelaxNG: include %s has define without name\n",
URL, NULL);
} else {
int found;
xmlRelaxNGNormExtSpace(name);
found = xmlRelaxNGRemoveRedefine(ctxt, URL,
root->children, name);
if (!found) {
xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_MISSING,
"xmlRelaxNG: include %s has a define %s but not the included grammar\n",
URL, name);
}
xmlFree(name);
}
}
cur = cur->next;
}
return (ret);
}
/**
* xmlRelaxNGValidErrorPush:
* @ctxt: the validation context
* @err: the error code
* @arg1: the first string argument
* @arg2: the second string argument
* @dup: arg need to be duplicated
*
* Pushes a new error on top of the error stack
*
* Returns 0 in case of error, the index in the stack otherwise
*/
static int
xmlRelaxNGValidErrorPush(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidErr err, const xmlChar * arg1,
const xmlChar * arg2, int dup)
{
xmlRelaxNGValidErrorPtr cur;
#ifdef DEBUG_ERROR
xmlGenericError(xmlGenericErrorContext,
"Pushing error %d at %d on stack\n", err, ctxt->errNr);
#endif
if (ctxt->errTab == NULL) {
ctxt->errMax = 8;
ctxt->errNr = 0;
ctxt->errTab =
(xmlRelaxNGValidErrorPtr) xmlMalloc(ctxt->errMax *
sizeof
(xmlRelaxNGValidError));
if (ctxt->errTab == NULL) {
xmlRngVErrMemory(ctxt, "pushing error\n");
return (0);
}
ctxt->err = NULL;
}
if (ctxt->errNr >= ctxt->errMax) {
ctxt->errMax *= 2;
ctxt->errTab =
(xmlRelaxNGValidErrorPtr) xmlRealloc(ctxt->errTab,
ctxt->errMax *
sizeof
(xmlRelaxNGValidError));
if (ctxt->errTab == NULL) {
xmlRngVErrMemory(ctxt, "pushing error\n");
return (0);
}
ctxt->err = &ctxt->errTab[ctxt->errNr - 1];
}
if ((ctxt->err != NULL) && (ctxt->state != NULL) &&
(ctxt->err->node == ctxt->state->node) && (ctxt->err->err == err))
return (ctxt->errNr);
cur = &ctxt->errTab[ctxt->errNr];
cur->err = err;
if (dup) {
cur->arg1 = xmlStrdup(arg1);
cur->arg2 = xmlStrdup(arg2);
cur->flags = ERROR_IS_DUP;
} else {
cur->arg1 = arg1;
cur->arg2 = arg2;
cur->flags = 0;
}
if (ctxt->state != NULL) {
cur->node = ctxt->state->node;
cur->seq = ctxt->state->seq;
} else {
cur->node = NULL;
cur->seq = NULL;
}
ctxt->err = cur;
return (ctxt->errNr++);
}
/**
* xmlRelaxNGValidErrorPop:
* @ctxt: the validation context
*
* Pops the top error from the error stack
*/
static void
xmlRelaxNGValidErrorPop(xmlRelaxNGValidCtxtPtr ctxt)
{
xmlRelaxNGValidErrorPtr cur;
if (ctxt->errNr <= 0) {
ctxt->err = NULL;
return;
}
ctxt->errNr--;
if (ctxt->errNr > 0)
ctxt->err = &ctxt->errTab[ctxt->errNr - 1];
else
ctxt->err = NULL;
cur = &ctxt->errTab[ctxt->errNr];
if (cur->flags & ERROR_IS_DUP) {
if (cur->arg1 != NULL)
xmlFree((xmlChar *) cur->arg1);
cur->arg1 = NULL;
if (cur->arg2 != NULL)
xmlFree((xmlChar *) cur->arg2);
cur->arg2 = NULL;
cur->flags = 0;
}
}
/**
* xmlRelaxNGDocumentPush:
* @ctxt: the parser context
* @value: the element doc
*
* Pushes a new doc on top of the doc stack
*
* Returns 0 in case of error, the index in the stack otherwise
*/
static int
xmlRelaxNGDocumentPush(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDocumentPtr value)
{
if (ctxt->docTab == NULL) {
ctxt->docMax = 4;
ctxt->docNr = 0;
ctxt->docTab =
(xmlRelaxNGDocumentPtr *) xmlMalloc(ctxt->docMax *
sizeof(ctxt->docTab[0]));
if (ctxt->docTab == NULL) {
xmlRngPErrMemory(ctxt, "adding document\n");
return (0);
}
}
if (ctxt->docNr >= ctxt->docMax) {
ctxt->docMax *= 2;
ctxt->docTab =
(xmlRelaxNGDocumentPtr *) xmlRealloc(ctxt->docTab,
ctxt->docMax *
sizeof(ctxt->docTab[0]));
if (ctxt->docTab == NULL) {
xmlRngPErrMemory(ctxt, "adding document\n");
return (0);
}
}
ctxt->docTab[ctxt->docNr] = value;
ctxt->doc = value;
return (ctxt->docNr++);
}
/**
* xmlRelaxNGDocumentPop:
* @ctxt: the parser context
*
* Pops the top doc from the doc stack
*
* Returns the doc just removed
*/
static xmlRelaxNGDocumentPtr
xmlRelaxNGDocumentPop(xmlRelaxNGParserCtxtPtr ctxt)
{
xmlRelaxNGDocumentPtr ret;
if (ctxt->docNr <= 0)
return (0);
ctxt->docNr--;
if (ctxt->docNr > 0)
ctxt->doc = ctxt->docTab[ctxt->docNr - 1];
else
ctxt->doc = NULL;
ret = ctxt->docTab[ctxt->docNr];
ctxt->docTab[ctxt->docNr] = 0;
return (ret);
}
/**
* xmlRelaxNGLoadExternalRef:
* @ctxt: the parser context
* @URL: the normalized URL
* @ns: the inherited ns if any
*
* First lookup if the document is already loaded into the parser context,
* check against recursion. If not found the resource is loaded and
* the content is preprocessed before being returned back to the caller.
*
* Returns the xmlRelaxNGDocumentPtr or NULL in case of error
*/
static xmlRelaxNGDocumentPtr
xmlRelaxNGLoadExternalRef(xmlRelaxNGParserCtxtPtr ctxt,
const xmlChar * URL, const xmlChar * ns)
{
xmlRelaxNGDocumentPtr ret = NULL;
xmlDocPtr doc;
xmlNodePtr root;
int i;
/*
* check against recursion in the stack
*/
for (i = 0; i < ctxt->docNr; i++) {
if (xmlStrEqual(ctxt->docTab[i]->href, URL)) {
xmlRngPErr(ctxt, NULL, XML_RNGP_EXTERNALREF_RECURSE,
"Detected an externalRef recursion for %s\n", URL,
NULL);
return (NULL);
}
}
/*
* load the document
*/
doc = xmlReadFile((const char *) URL,NULL,0);
if (doc == NULL) {
xmlRngPErr(ctxt, NULL, XML_RNGP_PARSE_ERROR,
"xmlRelaxNG: could not load %s\n", URL, NULL);
return (NULL);
}
/*
* Allocate the document structures and register it first.
*/
ret = (xmlRelaxNGDocumentPtr) xmlMalloc(sizeof(xmlRelaxNGDocument));
if (ret == NULL) {
xmlRngPErr(ctxt, (xmlNodePtr) doc, XML_ERR_NO_MEMORY,
"xmlRelaxNG: allocate memory for doc %s\n", URL, NULL);
xmlFreeDoc(doc);
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGDocument));
ret->doc = doc;
ret->href = xmlStrdup(URL);
ret->next = ctxt->documents;
ctxt->documents = ret;
/*
* transmit the ns if needed
*/
if (ns != NULL) {
root = xmlDocGetRootElement(doc);
if (root != NULL) {
if (xmlHasProp(root, BAD_CAST "ns") == NULL) {
xmlSetProp(root, BAD_CAST "ns", ns);
}
}
}
/*
* push it on the stack and register it in the hash table
*/
xmlRelaxNGDocumentPush(ctxt, ret);
/*
* Some preprocessing of the document content
*/
doc = xmlRelaxNGCleanupDoc(ctxt, doc);
if (doc == NULL) {
ctxt->doc = NULL;
return (NULL);
}
xmlRelaxNGDocumentPop(ctxt);
return (ret);
}
/************************************************************************
* *
* Error functions *
* *
************************************************************************/
#define VALID_ERR(a) xmlRelaxNGAddValidError(ctxt, a, NULL, NULL, 0);
#define VALID_ERR2(a, b) xmlRelaxNGAddValidError(ctxt, a, b, NULL, 0);
#define VALID_ERR3(a, b, c) xmlRelaxNGAddValidError(ctxt, a, b, c, 0);
#define VALID_ERR2P(a, b) xmlRelaxNGAddValidError(ctxt, a, b, NULL, 1);
#define VALID_ERR3P(a, b, c) xmlRelaxNGAddValidError(ctxt, a, b, c, 1);
static const char *
xmlRelaxNGDefName(xmlRelaxNGDefinePtr def)
{
if (def == NULL)
return ("none");
switch (def->type) {
case XML_RELAXNG_EMPTY:
return ("empty");
case XML_RELAXNG_NOT_ALLOWED:
return ("notAllowed");
case XML_RELAXNG_EXCEPT:
return ("except");
case XML_RELAXNG_TEXT:
return ("text");
case XML_RELAXNG_ELEMENT:
return ("element");
case XML_RELAXNG_DATATYPE:
return ("datatype");
case XML_RELAXNG_VALUE:
return ("value");
case XML_RELAXNG_LIST:
return ("list");
case XML_RELAXNG_ATTRIBUTE:
return ("attribute");
case XML_RELAXNG_DEF:
return ("def");
case XML_RELAXNG_REF:
return ("ref");
case XML_RELAXNG_EXTERNALREF:
return ("externalRef");
case XML_RELAXNG_PARENTREF:
return ("parentRef");
case XML_RELAXNG_OPTIONAL:
return ("optional");
case XML_RELAXNG_ZEROORMORE:
return ("zeroOrMore");
case XML_RELAXNG_ONEORMORE:
return ("oneOrMore");
case XML_RELAXNG_CHOICE:
return ("choice");
case XML_RELAXNG_GROUP:
return ("group");
case XML_RELAXNG_INTERLEAVE:
return ("interleave");
case XML_RELAXNG_START:
return ("start");
case XML_RELAXNG_NOOP:
return ("noop");
case XML_RELAXNG_PARAM:
return ("param");
}
return ("unknown");
}
/**
* xmlRelaxNGGetErrorString:
* @err: the error code
* @arg1: the first string argument
* @arg2: the second string argument
*
* computes a formatted error string for the given error code and args
*
* Returns the error string, it must be deallocated by the caller
*/
static xmlChar *
xmlRelaxNGGetErrorString(xmlRelaxNGValidErr err, const xmlChar * arg1,
const xmlChar * arg2)
{
char msg[1000];
if (arg1 == NULL)
arg1 = BAD_CAST "";
if (arg2 == NULL)
arg2 = BAD_CAST "";
msg[0] = 0;
switch (err) {
case XML_RELAXNG_OK:
return (NULL);
case XML_RELAXNG_ERR_MEMORY:
return (xmlCharStrdup("out of memory\n"));
case XML_RELAXNG_ERR_TYPE:
snprintf(msg, 1000, "failed to validate type %s\n", arg1);
break;
case XML_RELAXNG_ERR_TYPEVAL:
snprintf(msg, 1000, "Type %s doesn't allow value '%s'\n", arg1,
arg2);
break;
case XML_RELAXNG_ERR_DUPID:
snprintf(msg, 1000, "ID %s redefined\n", arg1);
break;
case XML_RELAXNG_ERR_TYPECMP:
snprintf(msg, 1000, "failed to compare type %s\n", arg1);
break;
case XML_RELAXNG_ERR_NOSTATE:
return (xmlCharStrdup("Internal error: no state\n"));
case XML_RELAXNG_ERR_NODEFINE:
return (xmlCharStrdup("Internal error: no define\n"));
case XML_RELAXNG_ERR_INTERNAL:
snprintf(msg, 1000, "Internal error: %s\n", arg1);
break;
case XML_RELAXNG_ERR_LISTEXTRA:
snprintf(msg, 1000, "Extra data in list: %s\n", arg1);
break;
case XML_RELAXNG_ERR_INTERNODATA:
return (xmlCharStrdup
("Internal: interleave block has no data\n"));
case XML_RELAXNG_ERR_INTERSEQ:
return (xmlCharStrdup("Invalid sequence in interleave\n"));
case XML_RELAXNG_ERR_INTEREXTRA:
snprintf(msg, 1000, "Extra element %s in interleave\n", arg1);
break;
case XML_RELAXNG_ERR_ELEMNAME:
snprintf(msg, 1000, "Expecting element %s, got %s\n", arg1,
arg2);
break;
case XML_RELAXNG_ERR_ELEMNONS:
snprintf(msg, 1000, "Expecting a namespace for element %s\n",
arg1);
break;
case XML_RELAXNG_ERR_ELEMWRONGNS:
snprintf(msg, 1000,
"Element %s has wrong namespace: expecting %s\n", arg1,
arg2);
break;
case XML_RELAXNG_ERR_ELEMWRONG:
snprintf(msg, 1000, "Did not expect element %s there\n", arg1);
break;
case XML_RELAXNG_ERR_TEXTWRONG:
snprintf(msg, 1000,
"Did not expect text in element %s content\n", arg1);
break;
case XML_RELAXNG_ERR_ELEMEXTRANS:
snprintf(msg, 1000, "Expecting no namespace for element %s\n",
arg1);
break;
case XML_RELAXNG_ERR_ELEMNOTEMPTY:
snprintf(msg, 1000, "Expecting element %s to be empty\n", arg1);
break;
case XML_RELAXNG_ERR_NOELEM:
snprintf(msg, 1000, "Expecting an element %s, got nothing\n",
arg1);
break;
case XML_RELAXNG_ERR_NOTELEM:
return (xmlCharStrdup("Expecting an element got text\n"));
case XML_RELAXNG_ERR_ATTRVALID:
snprintf(msg, 1000, "Element %s failed to validate attributes\n",
arg1);
break;
case XML_RELAXNG_ERR_CONTENTVALID:
snprintf(msg, 1000, "Element %s failed to validate content\n",
arg1);
break;
case XML_RELAXNG_ERR_EXTRACONTENT:
snprintf(msg, 1000, "Element %s has extra content: %s\n",
arg1, arg2);
break;
case XML_RELAXNG_ERR_INVALIDATTR:
snprintf(msg, 1000, "Invalid attribute %s for element %s\n",
arg1, arg2);
break;
case XML_RELAXNG_ERR_LACKDATA:
snprintf(msg, 1000, "Datatype element %s contains no data\n",
arg1);
break;
case XML_RELAXNG_ERR_DATAELEM:
snprintf(msg, 1000, "Datatype element %s has child elements\n",
arg1);
break;
case XML_RELAXNG_ERR_VALELEM:
snprintf(msg, 1000, "Value element %s has child elements\n",
arg1);
break;
case XML_RELAXNG_ERR_LISTELEM:
snprintf(msg, 1000, "List element %s has child elements\n",
arg1);
break;
case XML_RELAXNG_ERR_DATATYPE:
snprintf(msg, 1000, "Error validating datatype %s\n", arg1);
break;
case XML_RELAXNG_ERR_VALUE:
snprintf(msg, 1000, "Error validating value %s\n", arg1);
break;
case XML_RELAXNG_ERR_LIST:
return (xmlCharStrdup("Error validating list\n"));
case XML_RELAXNG_ERR_NOGRAMMAR:
return (xmlCharStrdup("No top grammar defined\n"));
case XML_RELAXNG_ERR_EXTRADATA:
return (xmlCharStrdup("Extra data in the document\n"));
default:
return (xmlCharStrdup("Unknown error !\n"));
}
if (msg[0] == 0) {
snprintf(msg, 1000, "Unknown error code %d\n", err);
}
msg[1000 - 1] = 0;
return (xmlStrdup((xmlChar *) msg));
}
/**
* xmlRelaxNGShowValidError:
* @ctxt: the validation context
* @err: the error number
* @node: the node
* @child: the node child generating the problem.
* @arg1: the first argument
* @arg2: the second argument
*
* Show a validation error.
*/
static void
xmlRelaxNGShowValidError(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidErr err, xmlNodePtr node,
xmlNodePtr child, const xmlChar * arg1,
const xmlChar * arg2)
{
xmlChar *msg;
if (ctxt->error == NULL)
return;
#ifdef DEBUG_ERROR
xmlGenericError(xmlGenericErrorContext, "Show error %d\n", err);
#endif
msg = xmlRelaxNGGetErrorString(err, arg1, arg2);
if (msg == NULL)
return;
if (ctxt->errNo == XML_RELAXNG_OK)
ctxt->errNo = err;
xmlRngVErr(ctxt, (child == NULL ? node : child), err,
(const char *) msg, arg1, arg2);
xmlFree(msg);
}
/**
* xmlRelaxNGPopErrors:
* @ctxt: the validation context
* @level: the error level in the stack
*
* pop and discard all errors until the given level is reached
*/
static void
xmlRelaxNGPopErrors(xmlRelaxNGValidCtxtPtr ctxt, int level)
{
int i;
xmlRelaxNGValidErrorPtr err;
#ifdef DEBUG_ERROR
xmlGenericError(xmlGenericErrorContext,
"Pop errors till level %d\n", level);
#endif
for (i = level; i < ctxt->errNr; i++) {
err = &ctxt->errTab[i];
if (err->flags & ERROR_IS_DUP) {
if (err->arg1 != NULL)
xmlFree((xmlChar *) err->arg1);
err->arg1 = NULL;
if (err->arg2 != NULL)
xmlFree((xmlChar *) err->arg2);
err->arg2 = NULL;
err->flags = 0;
}
}
ctxt->errNr = level;
if (ctxt->errNr <= 0)
ctxt->err = NULL;
}
/**
* xmlRelaxNGDumpValidError:
* @ctxt: the validation context
*
* Show all validation error over a given index.
*/
static void
xmlRelaxNGDumpValidError(xmlRelaxNGValidCtxtPtr ctxt)
{
int i, j, k;
xmlRelaxNGValidErrorPtr err, dup;
#ifdef DEBUG_ERROR
xmlGenericError(xmlGenericErrorContext,
"Dumping error stack %d errors\n", ctxt->errNr);
#endif
for (i = 0, k = 0; i < ctxt->errNr; i++) {
err = &ctxt->errTab[i];
if (k < MAX_ERROR) {
for (j = 0; j < i; j++) {
dup = &ctxt->errTab[j];
if ((err->err == dup->err) && (err->node == dup->node) &&
(xmlStrEqual(err->arg1, dup->arg1)) &&
(xmlStrEqual(err->arg2, dup->arg2))) {
goto skip;
}
}
xmlRelaxNGShowValidError(ctxt, err->err, err->node, err->seq,
err->arg1, err->arg2);
k++;
}
skip:
if (err->flags & ERROR_IS_DUP) {
if (err->arg1 != NULL)
xmlFree((xmlChar *) err->arg1);
err->arg1 = NULL;
if (err->arg2 != NULL)
xmlFree((xmlChar *) err->arg2);
err->arg2 = NULL;
err->flags = 0;
}
}
ctxt->errNr = 0;
}
/**
* xmlRelaxNGAddValidError:
* @ctxt: the validation context
* @err: the error number
* @arg1: the first argument
* @arg2: the second argument
* @dup: need to dup the args
*
* Register a validation error, either generating it if it's sure
* or stacking it for later handling if unsure.
*/
static void
xmlRelaxNGAddValidError(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidErr err, const xmlChar * arg1,
const xmlChar * arg2, int dup)
{
if ((ctxt == NULL) || (ctxt->error == NULL))
return;
#ifdef DEBUG_ERROR
xmlGenericError(xmlGenericErrorContext, "Adding error %d\n", err);
#endif
/*
* generate the error directly
*/
if (((ctxt->flags & FLAGS_IGNORABLE) == 0) ||
(ctxt->flags & FLAGS_NEGATIVE)) {
xmlNodePtr node, seq;
/*
* Flush first any stacked error which might be the
* real cause of the problem.
*/
if (ctxt->errNr != 0)
xmlRelaxNGDumpValidError(ctxt);
if (ctxt->state != NULL) {
node = ctxt->state->node;
seq = ctxt->state->seq;
} else {
node = seq = NULL;
}
xmlRelaxNGShowValidError(ctxt, err, node, seq, arg1, arg2);
}
/*
* Stack the error for later processing if needed
*/
else {
xmlRelaxNGValidErrorPush(ctxt, err, arg1, arg2, dup);
}
}
/************************************************************************
* *
* Type library hooks *
* *
************************************************************************/
static xmlChar *xmlRelaxNGNormalize(xmlRelaxNGValidCtxtPtr ctxt,
const xmlChar * str);
/**
* xmlRelaxNGSchemaTypeHave:
* @data: data needed for the library
* @type: the type name
*
* Check if the given type is provided by
* the W3C XMLSchema Datatype library.
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGSchemaTypeHave(void *data ATTRIBUTE_UNUSED, const xmlChar * type)
{
xmlSchemaTypePtr typ;
if (type == NULL)
return (-1);
typ = xmlSchemaGetPredefinedType(type,
BAD_CAST
"http://www.w3.org/2001/XMLSchema");
if (typ == NULL)
return (0);
return (1);
}
/**
* xmlRelaxNGSchemaTypeCheck:
* @data: data needed for the library
* @type: the type name
* @value: the value to check
* @node: the node
*
* Check if the given type and value are validated by
* the W3C XMLSchema Datatype library.
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGSchemaTypeCheck(void *data ATTRIBUTE_UNUSED,
const xmlChar * type,
const xmlChar * value,
void **result, xmlNodePtr node)
{
xmlSchemaTypePtr typ;
int ret;
if ((type == NULL) || (value == NULL))
return (-1);
typ = xmlSchemaGetPredefinedType(type,
BAD_CAST
"http://www.w3.org/2001/XMLSchema");
if (typ == NULL)
return (-1);
ret = xmlSchemaValPredefTypeNode(typ, value,
(xmlSchemaValPtr *) result, node);
if (ret == 2) /* special ID error code */
return (2);
if (ret == 0)
return (1);
if (ret > 0)
return (0);
return (-1);
}
/**
* xmlRelaxNGSchemaFacetCheck:
* @data: data needed for the library
* @type: the type name
* @facet: the facet name
* @val: the facet value
* @strval: the string value
* @value: the value to check
*
* Function provided by a type library to check a value facet
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGSchemaFacetCheck(void *data ATTRIBUTE_UNUSED,
const xmlChar * type, const xmlChar * facetname,
const xmlChar * val, const xmlChar * strval,
void *value)
{
xmlSchemaFacetPtr facet;
xmlSchemaTypePtr typ;
int ret;
if ((type == NULL) || (strval == NULL))
return (-1);
typ = xmlSchemaGetPredefinedType(type,
BAD_CAST
"http://www.w3.org/2001/XMLSchema");
if (typ == NULL)
return (-1);
facet = xmlSchemaNewFacet();
if (facet == NULL)
return (-1);
if (xmlStrEqual(facetname, BAD_CAST "minInclusive")) {
facet->type = XML_SCHEMA_FACET_MININCLUSIVE;
} else if (xmlStrEqual(facetname, BAD_CAST "minExclusive")) {
facet->type = XML_SCHEMA_FACET_MINEXCLUSIVE;
} else if (xmlStrEqual(facetname, BAD_CAST "maxInclusive")) {
facet->type = XML_SCHEMA_FACET_MAXINCLUSIVE;
} else if (xmlStrEqual(facetname, BAD_CAST "maxExclusive")) {
facet->type = XML_SCHEMA_FACET_MAXEXCLUSIVE;
} else if (xmlStrEqual(facetname, BAD_CAST "totalDigits")) {
facet->type = XML_SCHEMA_FACET_TOTALDIGITS;
} else if (xmlStrEqual(facetname, BAD_CAST "fractionDigits")) {
facet->type = XML_SCHEMA_FACET_FRACTIONDIGITS;
} else if (xmlStrEqual(facetname, BAD_CAST "pattern")) {
facet->type = XML_SCHEMA_FACET_PATTERN;
} else if (xmlStrEqual(facetname, BAD_CAST "enumeration")) {
facet->type = XML_SCHEMA_FACET_ENUMERATION;
} else if (xmlStrEqual(facetname, BAD_CAST "whiteSpace")) {
facet->type = XML_SCHEMA_FACET_WHITESPACE;
} else if (xmlStrEqual(facetname, BAD_CAST "length")) {
facet->type = XML_SCHEMA_FACET_LENGTH;
} else if (xmlStrEqual(facetname, BAD_CAST "maxLength")) {
facet->type = XML_SCHEMA_FACET_MAXLENGTH;
} else if (xmlStrEqual(facetname, BAD_CAST "minLength")) {
facet->type = XML_SCHEMA_FACET_MINLENGTH;
} else {
xmlSchemaFreeFacet(facet);
return (-1);
}
facet->value = val;
ret = xmlSchemaCheckFacet(facet, typ, NULL, type);
if (ret != 0) {
xmlSchemaFreeFacet(facet);
return (-1);
}
ret = xmlSchemaValidateFacet(typ, facet, strval, value);
xmlSchemaFreeFacet(facet);
if (ret != 0)
return (-1);
return (0);
}
/**
* xmlRelaxNGSchemaFreeValue:
* @data: data needed for the library
* @value: the value to free
*
* Function provided by a type library to free a Schemas value
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static void
xmlRelaxNGSchemaFreeValue(void *data ATTRIBUTE_UNUSED, void *value)
{
xmlSchemaFreeValue(value);
}
/**
* xmlRelaxNGSchemaTypeCompare:
* @data: data needed for the library
* @type: the type name
* @value1: the first value
* @value2: the second value
*
* Compare two values for equality accordingly a type from the W3C XMLSchema
* Datatype library.
*
* Returns 1 if equal, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGSchemaTypeCompare(void *data ATTRIBUTE_UNUSED,
const xmlChar * type,
const xmlChar * value1,
xmlNodePtr ctxt1,
void *comp1,
const xmlChar * value2, xmlNodePtr ctxt2)
{
int ret;
xmlSchemaTypePtr typ;
xmlSchemaValPtr res1 = NULL, res2 = NULL;
if ((type == NULL) || (value1 == NULL) || (value2 == NULL))
return (-1);
typ = xmlSchemaGetPredefinedType(type,
BAD_CAST
"http://www.w3.org/2001/XMLSchema");
if (typ == NULL)
return (-1);
if (comp1 == NULL) {
ret = xmlSchemaValPredefTypeNode(typ, value1, &res1, ctxt1);
if (ret != 0)
return (-1);
if (res1 == NULL)
return (-1);
} else {
res1 = (xmlSchemaValPtr) comp1;
}
ret = xmlSchemaValPredefTypeNode(typ, value2, &res2, ctxt2);
if (ret != 0) {
xmlSchemaFreeValue(res1);
return (-1);
}
if (res1 == NULL) {
xmlSchemaFreeValue(res1);
return (-1);
}
ret = xmlSchemaCompareValues(res1, res2);
if (res1 != (xmlSchemaValPtr) comp1)
xmlSchemaFreeValue(res1);
xmlSchemaFreeValue(res2);
if (ret == -2)
return (-1);
if (ret == 0)
return (1);
return (0);
}
/**
* xmlRelaxNGDefaultTypeHave:
* @data: data needed for the library
* @type: the type name
*
* Check if the given type is provided by
* the default datatype library.
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGDefaultTypeHave(void *data ATTRIBUTE_UNUSED,
const xmlChar * type)
{
if (type == NULL)
return (-1);
if (xmlStrEqual(type, BAD_CAST "string"))
return (1);
if (xmlStrEqual(type, BAD_CAST "token"))
return (1);
return (0);
}
/**
* xmlRelaxNGDefaultTypeCheck:
* @data: data needed for the library
* @type: the type name
* @value: the value to check
* @node: the node
*
* Check if the given type and value are validated by
* the default datatype library.
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGDefaultTypeCheck(void *data ATTRIBUTE_UNUSED,
const xmlChar * type ATTRIBUTE_UNUSED,
const xmlChar * value ATTRIBUTE_UNUSED,
void **result ATTRIBUTE_UNUSED,
xmlNodePtr node ATTRIBUTE_UNUSED)
{
if (value == NULL)
return (-1);
if (xmlStrEqual(type, BAD_CAST "string"))
return (1);
if (xmlStrEqual(type, BAD_CAST "token")) {
return (1);
}
return (0);
}
/**
* xmlRelaxNGDefaultTypeCompare:
* @data: data needed for the library
* @type: the type name
* @value1: the first value
* @value2: the second value
*
* Compare two values accordingly a type from the default
* datatype library.
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGDefaultTypeCompare(void *data ATTRIBUTE_UNUSED,
const xmlChar * type,
const xmlChar * value1,
xmlNodePtr ctxt1 ATTRIBUTE_UNUSED,
void *comp1 ATTRIBUTE_UNUSED,
const xmlChar * value2,
xmlNodePtr ctxt2 ATTRIBUTE_UNUSED)
{
int ret = -1;
if (xmlStrEqual(type, BAD_CAST "string")) {
ret = xmlStrEqual(value1, value2);
} else if (xmlStrEqual(type, BAD_CAST "token")) {
if (!xmlStrEqual(value1, value2)) {
xmlChar *nval, *nvalue;
/*
* TODO: trivial optimizations are possible by
* computing at compile-time
*/
nval = xmlRelaxNGNormalize(NULL, value1);
nvalue = xmlRelaxNGNormalize(NULL, value2);
if ((nval == NULL) || (nvalue == NULL))
ret = -1;
else if (xmlStrEqual(nval, nvalue))
ret = 1;
else
ret = 0;
if (nval != NULL)
xmlFree(nval);
if (nvalue != NULL)
xmlFree(nvalue);
} else
ret = 1;
}
return (ret);
}
static int xmlRelaxNGTypeInitialized = 0;
static xmlHashTablePtr xmlRelaxNGRegisteredTypes = NULL;
/**
* xmlRelaxNGFreeTypeLibrary:
* @lib: the type library structure
* @namespace: the URI bound to the library
*
* Free the structure associated to the type library
*/
static void
xmlRelaxNGFreeTypeLibrary(xmlRelaxNGTypeLibraryPtr lib,
const xmlChar * namespace ATTRIBUTE_UNUSED)
{
if (lib == NULL)
return;
if (lib->namespace != NULL)
xmlFree((xmlChar *) lib->namespace);
xmlFree(lib);
}
/**
* xmlRelaxNGRegisterTypeLibrary:
* @namespace: the URI bound to the library
* @data: data associated to the library
* @have: the provide function
* @check: the checking function
* @comp: the comparison function
*
* Register a new type library
*
* Returns 0 in case of success and -1 in case of error.
*/
static int
xmlRelaxNGRegisterTypeLibrary(const xmlChar * namespace, void *data,
xmlRelaxNGTypeHave have,
xmlRelaxNGTypeCheck check,
xmlRelaxNGTypeCompare comp,
xmlRelaxNGFacetCheck facet,
xmlRelaxNGTypeFree freef)
{
xmlRelaxNGTypeLibraryPtr lib;
int ret;
if ((xmlRelaxNGRegisteredTypes == NULL) || (namespace == NULL) ||
(check == NULL) || (comp == NULL))
return (-1);
if (xmlHashLookup(xmlRelaxNGRegisteredTypes, namespace) != NULL) {
xmlGenericError(xmlGenericErrorContext,
"Relax-NG types library '%s' already registered\n",
namespace);
return (-1);
}
lib =
(xmlRelaxNGTypeLibraryPtr)
xmlMalloc(sizeof(xmlRelaxNGTypeLibrary));
if (lib == NULL) {
xmlRngVErrMemory(NULL, "adding types library\n");
return (-1);
}
memset(lib, 0, sizeof(xmlRelaxNGTypeLibrary));
lib->namespace = xmlStrdup(namespace);
lib->data = data;
lib->have = have;
lib->comp = comp;
lib->check = check;
lib->facet = facet;
lib->freef = freef;
ret = xmlHashAddEntry(xmlRelaxNGRegisteredTypes, namespace, lib);
if (ret < 0) {
xmlGenericError(xmlGenericErrorContext,
"Relax-NG types library failed to register '%s'\n",
namespace);
xmlRelaxNGFreeTypeLibrary(lib, namespace);
return (-1);
}
return (0);
}
/**
* xmlRelaxNGInitTypes:
*
* Initilize the default type libraries.
*
* Returns 0 in case of success and -1 in case of error.
*/
static int
xmlRelaxNGInitTypes(void)
{
if (xmlRelaxNGTypeInitialized != 0)
return (0);
xmlRelaxNGRegisteredTypes = xmlHashCreate(10);
if (xmlRelaxNGRegisteredTypes == NULL) {
xmlGenericError(xmlGenericErrorContext,
"Failed to allocate sh table for Relax-NG types\n");
return (-1);
}
xmlRelaxNGRegisterTypeLibrary(BAD_CAST
"http://www.w3.org/2001/XMLSchema-datatypes",
NULL, xmlRelaxNGSchemaTypeHave,
xmlRelaxNGSchemaTypeCheck,
xmlRelaxNGSchemaTypeCompare,
xmlRelaxNGSchemaFacetCheck,
xmlRelaxNGSchemaFreeValue);
xmlRelaxNGRegisterTypeLibrary(xmlRelaxNGNs, NULL,
xmlRelaxNGDefaultTypeHave,
xmlRelaxNGDefaultTypeCheck,
xmlRelaxNGDefaultTypeCompare, NULL,
NULL);
xmlRelaxNGTypeInitialized = 1;
return (0);
}
/**
* xmlRelaxNGCleanupTypes:
*
* Cleanup the default Schemas type library associated to RelaxNG
*/
void
xmlRelaxNGCleanupTypes(void)
{
xmlSchemaCleanupTypes();
if (xmlRelaxNGTypeInitialized == 0)
return;
xmlHashFree(xmlRelaxNGRegisteredTypes, (xmlHashDeallocator)
xmlRelaxNGFreeTypeLibrary);
xmlRelaxNGTypeInitialized = 0;
}
/************************************************************************
* *
* Compiling element content into regexp *
* *
* Sometime the element content can be compiled into a pure regexp, *
* This allows a faster execution and streamability at that level *
* *
************************************************************************/
static int xmlRelaxNGTryCompile(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr def);
/**
* xmlRelaxNGIsCompileable:
* @define: the definition to check
*
* Check if a definition is nullable.
*
* Returns 1 if yes, 0 if no and -1 in case of error
*/
static int
xmlRelaxNGIsCompileable(xmlRelaxNGDefinePtr def)
{
int ret = -1;
if (def == NULL) {
return (-1);
}
if ((def->type != XML_RELAXNG_ELEMENT) &&
(def->dflags & IS_COMPILABLE))
return (1);
if ((def->type != XML_RELAXNG_ELEMENT) &&
(def->dflags & IS_NOT_COMPILABLE))
return (0);
switch (def->type) {
case XML_RELAXNG_NOOP:
ret = xmlRelaxNGIsCompileable(def->content);
break;
case XML_RELAXNG_TEXT:
case XML_RELAXNG_EMPTY:
ret = 1;
break;
case XML_RELAXNG_ELEMENT:
/*
* Check if the element content is compileable
*/
if (((def->dflags & IS_NOT_COMPILABLE) == 0) &&
((def->dflags & IS_COMPILABLE) == 0)) {
xmlRelaxNGDefinePtr list;
list = def->content;
while (list != NULL) {
ret = xmlRelaxNGIsCompileable(list);
if (ret != 1)
break;
list = list->next;
}
/*
* Because the routine is recursive, we must guard against
* discovering both COMPILABLE and NOT_COMPILABLE
*/
if (ret == 0) {
def->dflags &= ~IS_COMPILABLE;
def->dflags |= IS_NOT_COMPILABLE;
}
if ((ret == 1) && !(def->dflags &= IS_NOT_COMPILABLE))
def->dflags |= IS_COMPILABLE;
#ifdef DEBUG_COMPILE
if (ret == 1) {
xmlGenericError(xmlGenericErrorContext,
"element content for %s is compilable\n",
def->name);
} else if (ret == 0) {
xmlGenericError(xmlGenericErrorContext,
"element content for %s is not compilable\n",
def->name);
} else {
xmlGenericError(xmlGenericErrorContext,
"Problem in RelaxNGIsCompileable for element %s\n",
def->name);
}
#endif
}
/*
* All elements return a compileable status unless they
* are generic like anyName
*/
if ((def->nameClass != NULL) || (def->name == NULL))
ret = 0;
else
ret = 1;
return (ret);
case XML_RELAXNG_REF:
case XML_RELAXNG_EXTERNALREF:
case XML_RELAXNG_PARENTREF:
if (def->depth == -20) {
return (1);
} else {
xmlRelaxNGDefinePtr list;
def->depth = -20;
list = def->content;
while (list != NULL) {
ret = xmlRelaxNGIsCompileable(list);
if (ret != 1)
break;
list = list->next;
}
}
break;
case XML_RELAXNG_START:
case XML_RELAXNG_OPTIONAL:
case XML_RELAXNG_ZEROORMORE:
case XML_RELAXNG_ONEORMORE:
case XML_RELAXNG_CHOICE:
case XML_RELAXNG_GROUP:
case XML_RELAXNG_DEF:{
xmlRelaxNGDefinePtr list;
list = def->content;
while (list != NULL) {
ret = xmlRelaxNGIsCompileable(list);
if (ret != 1)
break;
list = list->next;
}
break;
}
case XML_RELAXNG_EXCEPT:
case XML_RELAXNG_ATTRIBUTE:
case XML_RELAXNG_INTERLEAVE:
case XML_RELAXNG_DATATYPE:
case XML_RELAXNG_LIST:
case XML_RELAXNG_PARAM:
case XML_RELAXNG_VALUE:
case XML_RELAXNG_NOT_ALLOWED:
ret = 0;
break;
}
if (ret == 0)
def->dflags |= IS_NOT_COMPILABLE;
if (ret == 1)
def->dflags |= IS_COMPILABLE;
#ifdef DEBUG_COMPILE
if (ret == 1) {
xmlGenericError(xmlGenericErrorContext,
"RelaxNGIsCompileable %s : true\n",
xmlRelaxNGDefName(def));
} else if (ret == 0) {
xmlGenericError(xmlGenericErrorContext,
"RelaxNGIsCompileable %s : false\n",
xmlRelaxNGDefName(def));
} else {
xmlGenericError(xmlGenericErrorContext,
"Problem in RelaxNGIsCompileable %s\n",
xmlRelaxNGDefName(def));
}
#endif
return (ret);
}
/**
* xmlRelaxNGCompile:
* ctxt: the RelaxNG parser context
* @define: the definition tree to compile
*
* Compile the set of definitions, it works recursively, till the
* element boundaries, where it tries to compile the content if possible
*
* Returns 0 if success and -1 in case of error
*/
static int
xmlRelaxNGCompile(xmlRelaxNGParserCtxtPtr ctxt, xmlRelaxNGDefinePtr def)
{
int ret = 0;
xmlRelaxNGDefinePtr list;
if ((ctxt == NULL) || (def == NULL))
return (-1);
switch (def->type) {
case XML_RELAXNG_START:
if ((xmlRelaxNGIsCompileable(def) == 1) && (def->depth != -25)) {
xmlAutomataPtr oldam = ctxt->am;
xmlAutomataStatePtr oldstate = ctxt->state;
def->depth = -25;
list = def->content;
ctxt->am = xmlNewAutomata();
if (ctxt->am == NULL)
return (-1);
ctxt->state = xmlAutomataGetInitState(ctxt->am);
while (list != NULL) {
xmlRelaxNGCompile(ctxt, list);
list = list->next;
}
xmlAutomataSetFinalState(ctxt->am, ctxt->state);
def->contModel = xmlAutomataCompile(ctxt->am);
xmlRegexpIsDeterminist(def->contModel);
xmlFreeAutomata(ctxt->am);
ctxt->state = oldstate;
ctxt->am = oldam;
}
break;
case XML_RELAXNG_ELEMENT:
if ((ctxt->am != NULL) && (def->name != NULL)) {
ctxt->state = xmlAutomataNewTransition2(ctxt->am,
ctxt->state, NULL,
def->name, def->ns,
def);
}
if ((def->dflags & IS_COMPILABLE) && (def->depth != -25)) {
xmlAutomataPtr oldam = ctxt->am;
xmlAutomataStatePtr oldstate = ctxt->state;
def->depth = -25;
list = def->content;
ctxt->am = xmlNewAutomata();
if (ctxt->am == NULL)
return (-1);
ctxt->state = xmlAutomataGetInitState(ctxt->am);
while (list != NULL) {
xmlRelaxNGCompile(ctxt, list);
list = list->next;
}
xmlAutomataSetFinalState(ctxt->am, ctxt->state);
def->contModel = xmlAutomataCompile(ctxt->am);
if (!xmlRegexpIsDeterminist(def->contModel)) {
/*
* we can only use the automata if it is determinist
*/
xmlRegFreeRegexp(def->contModel);
def->contModel = NULL;
}
xmlFreeAutomata(ctxt->am);
ctxt->state = oldstate;
ctxt->am = oldam;
} else {
xmlAutomataPtr oldam = ctxt->am;
/*
* we can't build the content model for this element content
* but it still might be possible to build it for some of its
* children, recurse.
*/
ret = xmlRelaxNGTryCompile(ctxt, def);
ctxt->am = oldam;
}
break;
case XML_RELAXNG_NOOP:
ret = xmlRelaxNGCompile(ctxt, def->content);
break;
case XML_RELAXNG_OPTIONAL:{
xmlAutomataStatePtr oldstate = ctxt->state;
xmlRelaxNGCompile(ctxt, def->content);
xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
break;
}
case XML_RELAXNG_ZEROORMORE:{
xmlAutomataStatePtr oldstate;
ctxt->state =
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, NULL);
oldstate = ctxt->state;
list = def->content;
while (list != NULL) {
xmlRelaxNGCompile(ctxt, list);
list = list->next;
}
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldstate);
ctxt->state =
xmlAutomataNewEpsilon(ctxt->am, oldstate, NULL);
break;
}
case XML_RELAXNG_ONEORMORE:{
xmlAutomataStatePtr oldstate;
list = def->content;
while (list != NULL) {
xmlRelaxNGCompile(ctxt, list);
list = list->next;
}
oldstate = ctxt->state;
list = def->content;
while (list != NULL) {
xmlRelaxNGCompile(ctxt, list);
list = list->next;
}
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldstate);
ctxt->state =
xmlAutomataNewEpsilon(ctxt->am, oldstate, NULL);
break;
}
case XML_RELAXNG_CHOICE:{
xmlAutomataStatePtr target = NULL;
xmlAutomataStatePtr oldstate = ctxt->state;
list = def->content;
while (list != NULL) {
ctxt->state = oldstate;
ret = xmlRelaxNGCompile(ctxt, list);
if (ret != 0)
break;
if (target == NULL)
target = ctxt->state;
else {
xmlAutomataNewEpsilon(ctxt->am, ctxt->state,
target);
}
list = list->next;
}
ctxt->state = target;
break;
}
case XML_RELAXNG_REF:
case XML_RELAXNG_EXTERNALREF:
case XML_RELAXNG_PARENTREF:
case XML_RELAXNG_GROUP:
case XML_RELAXNG_DEF:
list = def->content;
while (list != NULL) {
ret = xmlRelaxNGCompile(ctxt, list);
if (ret != 0)
break;
list = list->next;
}
break;
case XML_RELAXNG_TEXT:{
xmlAutomataStatePtr oldstate;
ctxt->state =
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, NULL);
oldstate = ctxt->state;
xmlRelaxNGCompile(ctxt, def->content);
xmlAutomataNewTransition(ctxt->am, ctxt->state,
ctxt->state, BAD_CAST "#text",
NULL);
ctxt->state =
xmlAutomataNewEpsilon(ctxt->am, oldstate, NULL);
break;
}
case XML_RELAXNG_EMPTY:
ctxt->state =
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, NULL);
break;
case XML_RELAXNG_EXCEPT:
case XML_RELAXNG_ATTRIBUTE:
case XML_RELAXNG_INTERLEAVE:
case XML_RELAXNG_NOT_ALLOWED:
case XML_RELAXNG_DATATYPE:
case XML_RELAXNG_LIST:
case XML_RELAXNG_PARAM:
case XML_RELAXNG_VALUE:
/* This should not happen and generate an internal error */
fprintf(stderr, "RNG internal error trying to compile %s\n",
xmlRelaxNGDefName(def));
break;
}
return (ret);
}
/**
* xmlRelaxNGTryCompile:
* ctxt: the RelaxNG parser context
* @define: the definition tree to compile
*
* Try to compile the set of definitions, it works recursively,
* possibly ignoring parts which cannot be compiled.
*
* Returns 0 if success and -1 in case of error
*/
static int
xmlRelaxNGTryCompile(xmlRelaxNGParserCtxtPtr ctxt, xmlRelaxNGDefinePtr def)
{
int ret = 0;
xmlRelaxNGDefinePtr list;
if ((ctxt == NULL) || (def == NULL))
return (-1);
if ((def->type == XML_RELAXNG_START) ||
(def->type == XML_RELAXNG_ELEMENT)) {
ret = xmlRelaxNGIsCompileable(def);
if ((def->dflags & IS_COMPILABLE) && (def->depth != -25)) {
ctxt->am = NULL;
ret = xmlRelaxNGCompile(ctxt, def);
#ifdef DEBUG_PROGRESSIVE
if (ret == 0) {
if (def->type == XML_RELAXNG_START)
xmlGenericError(xmlGenericErrorContext,
"compiled the start\n");
else
xmlGenericError(xmlGenericErrorContext,
"compiled element %s\n", def->name);
} else {
if (def->type == XML_RELAXNG_START)
xmlGenericError(xmlGenericErrorContext,
"failed to compile the start\n");
else
xmlGenericError(xmlGenericErrorContext,
"failed to compile element %s\n",
def->name);
}
#endif
return (ret);
}
}
switch (def->type) {
case XML_RELAXNG_NOOP:
ret = xmlRelaxNGTryCompile(ctxt, def->content);
break;
case XML_RELAXNG_TEXT:
case XML_RELAXNG_DATATYPE:
case XML_RELAXNG_LIST:
case XML_RELAXNG_PARAM:
case XML_RELAXNG_VALUE:
case XML_RELAXNG_EMPTY:
case XML_RELAXNG_ELEMENT:
ret = 0;
break;
case XML_RELAXNG_OPTIONAL:
case XML_RELAXNG_ZEROORMORE:
case XML_RELAXNG_ONEORMORE:
case XML_RELAXNG_CHOICE:
case XML_RELAXNG_GROUP:
case XML_RELAXNG_DEF:
case XML_RELAXNG_START:
case XML_RELAXNG_REF:
case XML_RELAXNG_EXTERNALREF:
case XML_RELAXNG_PARENTREF:
list = def->content;
while (list != NULL) {
ret = xmlRelaxNGTryCompile(ctxt, list);
if (ret != 0)
break;
list = list->next;
}
break;
case XML_RELAXNG_EXCEPT:
case XML_RELAXNG_ATTRIBUTE:
case XML_RELAXNG_INTERLEAVE:
case XML_RELAXNG_NOT_ALLOWED:
ret = 0;
break;
}
return (ret);
}
/************************************************************************
* *
* Parsing functions *
* *
************************************************************************/
static xmlRelaxNGDefinePtr xmlRelaxNGParseAttribute(xmlRelaxNGParserCtxtPtr
ctxt, xmlNodePtr node);
static xmlRelaxNGDefinePtr xmlRelaxNGParseElement(xmlRelaxNGParserCtxtPtr
ctxt, xmlNodePtr node);
static xmlRelaxNGDefinePtr xmlRelaxNGParsePatterns(xmlRelaxNGParserCtxtPtr
ctxt, xmlNodePtr nodes,
int group);
static xmlRelaxNGDefinePtr xmlRelaxNGParsePattern(xmlRelaxNGParserCtxtPtr
ctxt, xmlNodePtr node);
static xmlRelaxNGPtr xmlRelaxNGParseDocument(xmlRelaxNGParserCtxtPtr ctxt,
xmlNodePtr node);
static int xmlRelaxNGParseGrammarContent(xmlRelaxNGParserCtxtPtr ctxt,
xmlNodePtr nodes);
static xmlRelaxNGDefinePtr xmlRelaxNGParseNameClass(xmlRelaxNGParserCtxtPtr
ctxt, xmlNodePtr node,
xmlRelaxNGDefinePtr
def);
static xmlRelaxNGGrammarPtr xmlRelaxNGParseGrammar(xmlRelaxNGParserCtxtPtr
ctxt, xmlNodePtr nodes);
static int xmlRelaxNGElementMatch(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define,
xmlNodePtr elem);
#define IS_BLANK_NODE(n) (xmlRelaxNGIsBlank((n)->content))
/**
* xmlRelaxNGIsNullable:
* @define: the definition to verify
*
* Check if a definition is nullable.
*
* Returns 1 if yes, 0 if no and -1 in case of error
*/
static int
xmlRelaxNGIsNullable(xmlRelaxNGDefinePtr define)
{
int ret;
if (define == NULL)
return (-1);
if (define->dflags & IS_NULLABLE)
return (1);
if (define->dflags & IS_NOT_NULLABLE)
return (0);
switch (define->type) {
case XML_RELAXNG_EMPTY:
case XML_RELAXNG_TEXT:
ret = 1;
break;
case XML_RELAXNG_NOOP:
case XML_RELAXNG_DEF:
case XML_RELAXNG_REF:
case XML_RELAXNG_EXTERNALREF:
case XML_RELAXNG_PARENTREF:
case XML_RELAXNG_ONEORMORE:
ret = xmlRelaxNGIsNullable(define->content);
break;
case XML_RELAXNG_EXCEPT:
case XML_RELAXNG_NOT_ALLOWED:
case XML_RELAXNG_ELEMENT:
case XML_RELAXNG_DATATYPE:
case XML_RELAXNG_PARAM:
case XML_RELAXNG_VALUE:
case XML_RELAXNG_LIST:
case XML_RELAXNG_ATTRIBUTE:
ret = 0;
break;
case XML_RELAXNG_CHOICE:{
xmlRelaxNGDefinePtr list = define->content;
while (list != NULL) {
ret = xmlRelaxNGIsNullable(list);
if (ret != 0)
goto done;
list = list->next;
}
ret = 0;
break;
}
case XML_RELAXNG_START:
case XML_RELAXNG_INTERLEAVE:
case XML_RELAXNG_GROUP:{
xmlRelaxNGDefinePtr list = define->content;
while (list != NULL) {
ret = xmlRelaxNGIsNullable(list);
if (ret != 1)
goto done;
list = list->next;
}
return (1);
}
default:
return (-1);
}
done:
if (ret == 0)
define->dflags |= IS_NOT_NULLABLE;
if (ret == 1)
define->dflags |= IS_NULLABLE;
return (ret);
}
/**
* xmlRelaxNGIsBlank:
* @str: a string
*
* Check if a string is ignorable c.f. 4.2. Whitespace
*
* Returns 1 if the string is NULL or made of blanks chars, 0 otherwise
*/
static int
xmlRelaxNGIsBlank(xmlChar * str)
{
if (str == NULL)
return (1);
while (*str != 0) {
if (!(IS_BLANK_CH(*str)))
return (0);
str++;
}
return (1);
}
/**
* xmlRelaxNGGetDataTypeLibrary:
* @ctxt: a Relax-NG parser context
* @node: the current data or value element
*
* Applies algorithm from 4.3. datatypeLibrary attribute
*
* Returns the datatypeLibary value or NULL if not found
*/
static xmlChar *
xmlRelaxNGGetDataTypeLibrary(xmlRelaxNGParserCtxtPtr ctxt ATTRIBUTE_UNUSED,
xmlNodePtr node)
{
xmlChar *ret, *escape;
if ((IS_RELAXNG(node, "data")) || (IS_RELAXNG(node, "value"))) {
ret = xmlGetProp(node, BAD_CAST "datatypeLibrary");
if (ret != NULL) {
if (ret[0] == 0) {
xmlFree(ret);
return (NULL);
}
escape = xmlURIEscapeStr(ret, BAD_CAST ":/#?");
if (escape == NULL) {
return (ret);
}
xmlFree(ret);
return (escape);
}
}
node = node->parent;
while ((node != NULL) && (node->type == XML_ELEMENT_NODE)) {
ret = xmlGetProp(node, BAD_CAST "datatypeLibrary");
if (ret != NULL) {
if (ret[0] == 0) {
xmlFree(ret);
return (NULL);
}
escape = xmlURIEscapeStr(ret, BAD_CAST ":/#?");
if (escape == NULL) {
return (ret);
}
xmlFree(ret);
return (escape);
}
node = node->parent;
}
return (NULL);
}
/**
* xmlRelaxNGParseValue:
* @ctxt: a Relax-NG parser context
* @node: the data node.
*
* parse the content of a RelaxNG value node.
*
* Returns the definition pointer or NULL in case of error
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParseValue(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDefinePtr def = NULL;
xmlRelaxNGTypeLibraryPtr lib = NULL;
xmlChar *type;
xmlChar *library;
int success = 0;
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_VALUE;
type = xmlGetProp(node, BAD_CAST "type");
if (type != NULL) {
xmlRelaxNGNormExtSpace(type);
if (xmlValidateNCName(type, 0)) {
xmlRngPErr(ctxt, node, XML_RNGP_TYPE_VALUE,
"value type '%s' is not an NCName\n", type, NULL);
}
library = xmlRelaxNGGetDataTypeLibrary(ctxt, node);
if (library == NULL)
library =
xmlStrdup(BAD_CAST "http://relaxng.org/ns/structure/1.0");
def->name = type;
def->ns = library;
lib = (xmlRelaxNGTypeLibraryPtr)
xmlHashLookup(xmlRelaxNGRegisteredTypes, library);
if (lib == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_TYPE_LIB,
"Use of unregistered type library '%s'\n", library,
NULL);
def->data = NULL;
} else {
def->data = lib;
if (lib->have == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_ERROR_TYPE_LIB,
"Internal error with type library '%s': no 'have'\n",
library, NULL);
} else {
success = lib->have(lib->data, def->name);
if (success != 1) {
xmlRngPErr(ctxt, node, XML_RNGP_TYPE_NOT_FOUND,
"Error type '%s' is not exported by type library '%s'\n",
def->name, library);
}
}
}
}
if (node->children == NULL) {
def->value = xmlStrdup(BAD_CAST "");
} else if (((node->children->type != XML_TEXT_NODE) &&
(node->children->type != XML_CDATA_SECTION_NODE)) ||
(node->children->next != NULL)) {
xmlRngPErr(ctxt, node, XML_RNGP_TEXT_EXPECTED,
"Expecting a single text value for <value>content\n",
NULL, NULL);
} else if (def != NULL) {
def->value = xmlNodeGetContent(node);
if (def->value == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_VALUE_NO_CONTENT,
"Element <value> has no content\n", NULL, NULL);
} else if ((lib != NULL) && (lib->check != NULL) && (success == 1)) {
void *val = NULL;
success =
lib->check(lib->data, def->name, def->value, &val, node);
if (success != 1) {
xmlRngPErr(ctxt, node, XML_RNGP_INVALID_VALUE,
"Value '%s' is not acceptable for type '%s'\n",
def->value, def->name);
} else {
if (val != NULL)
def->attrs = val;
}
}
}
return (def);
}
/**
* xmlRelaxNGParseData:
* @ctxt: a Relax-NG parser context
* @node: the data node.
*
* parse the content of a RelaxNG data node.
*
* Returns the definition pointer or NULL in case of error
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParseData(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDefinePtr def = NULL, except, last = NULL;
xmlRelaxNGDefinePtr param, lastparam = NULL;
xmlRelaxNGTypeLibraryPtr lib;
xmlChar *type;
xmlChar *library;
xmlNodePtr content;
int tmp;
type = xmlGetProp(node, BAD_CAST "type");
if (type == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_TYPE_MISSING, "data has no type\n", NULL,
NULL);
return (NULL);
}
xmlRelaxNGNormExtSpace(type);
if (xmlValidateNCName(type, 0)) {
xmlRngPErr(ctxt, node, XML_RNGP_TYPE_VALUE,
"data type '%s' is not an NCName\n", type, NULL);
}
library = xmlRelaxNGGetDataTypeLibrary(ctxt, node);
if (library == NULL)
library =
xmlStrdup(BAD_CAST "http://relaxng.org/ns/structure/1.0");
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL) {
xmlFree(type);
return (NULL);
}
def->type = XML_RELAXNG_DATATYPE;
def->name = type;
def->ns = library;
lib = (xmlRelaxNGTypeLibraryPtr)
xmlHashLookup(xmlRelaxNGRegisteredTypes, library);
if (lib == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_TYPE_LIB,
"Use of unregistered type library '%s'\n", library,
NULL);
def->data = NULL;
} else {
def->data = lib;
if (lib->have == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_ERROR_TYPE_LIB,
"Internal error with type library '%s': no 'have'\n",
library, NULL);
} else {
tmp = lib->have(lib->data, def->name);
if (tmp != 1) {
xmlRngPErr(ctxt, node, XML_RNGP_TYPE_NOT_FOUND,
"Error type '%s' is not exported by type library '%s'\n",
def->name, library);
} else
if ((xmlStrEqual
(library,
BAD_CAST
"http://www.w3.org/2001/XMLSchema-datatypes"))
&& ((xmlStrEqual(def->name, BAD_CAST "IDREF"))
|| (xmlStrEqual(def->name, BAD_CAST "IDREFS")))) {
ctxt->idref = 1;
}
}
}
content = node->children;
/*
* Handle optional params
*/
while (content != NULL) {
if (!xmlStrEqual(content->name, BAD_CAST "param"))
break;
if (xmlStrEqual(library,
BAD_CAST "http://relaxng.org/ns/structure/1.0")) {
xmlRngPErr(ctxt, node, XML_RNGP_PARAM_FORBIDDEN,
"Type library '%s' does not allow type parameters\n",
library, NULL);
content = content->next;
while ((content != NULL) &&
(xmlStrEqual(content->name, BAD_CAST "param")))
content = content->next;
} else {
param = xmlRelaxNGNewDefine(ctxt, node);
if (param != NULL) {
param->type = XML_RELAXNG_PARAM;
param->name = xmlGetProp(content, BAD_CAST "name");
if (param->name == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_PARAM_NAME_MISSING,
"param has no name\n", NULL, NULL);
}
param->value = xmlNodeGetContent(content);
if (lastparam == NULL) {
def->attrs = lastparam = param;
} else {
lastparam->next = param;
lastparam = param;
}
if (lib != NULL) {
}
}
content = content->next;
}
}
/*
* Handle optional except
*/
if ((content != NULL)
&& (xmlStrEqual(content->name, BAD_CAST "except"))) {
xmlNodePtr child;
xmlRelaxNGDefinePtr tmp2, last2 = NULL;
except = xmlRelaxNGNewDefine(ctxt, node);
if (except == NULL) {
return (def);
}
except->type = XML_RELAXNG_EXCEPT;
child = content->children;
if (last == NULL) {
def->content = except;
} else {
last->next = except;
}
if (child == NULL) {
xmlRngPErr(ctxt, content, XML_RNGP_EXCEPT_NO_CONTENT,
"except has no content\n", NULL, NULL);
}
while (child != NULL) {
tmp2 = xmlRelaxNGParsePattern(ctxt, child);
if (tmp2 != NULL) {
if (last2 == NULL) {
except->content = last2 = tmp2;
} else {
last2->next = tmp2;
last2 = tmp2;
}
}
child = child->next;
}
content = content->next;
}
/*
* Check there is no unhandled data
*/
if (content != NULL) {
xmlRngPErr(ctxt, content, XML_RNGP_DATA_CONTENT,
"Element data has unexpected content %s\n",
content->name, NULL);
}
return (def);
}
static const xmlChar *invalidName = BAD_CAST "\1";
/**
* xmlRelaxNGCompareNameClasses:
* @defs1: the first element/attribute defs
* @defs2: the second element/attribute defs
* @name: the restriction on the name
* @ns: the restriction on the namespace
*
* Compare the 2 lists of element definitions. The comparison is
* that if both lists do not accept the same QNames, it returns 1
* If the 2 lists can accept the same QName the comparison returns 0
*
* Returns 1 disttinct, 0 if equal
*/
static int
xmlRelaxNGCompareNameClasses(xmlRelaxNGDefinePtr def1,
xmlRelaxNGDefinePtr def2)
{
int ret = 1;
xmlNode node;
xmlNs ns;
xmlRelaxNGValidCtxt ctxt;
ctxt.flags = FLAGS_IGNORABLE;
memset(&ctxt, 0, sizeof(xmlRelaxNGValidCtxt));
if ((def1->type == XML_RELAXNG_ELEMENT) ||
(def1->type == XML_RELAXNG_ATTRIBUTE)) {
if (def2->type == XML_RELAXNG_TEXT)
return (1);
if (def1->name != NULL) {
node.name = def1->name;
} else {
node.name = invalidName;
}
if (def1->ns != NULL) {
if (def1->ns[0] == 0) {
node.ns = NULL;
} else {
node.ns = &ns;
ns.href = def1->ns;
}
} else {
node.ns = NULL;
}
if (xmlRelaxNGElementMatch(&ctxt, def2, &node)) {
if (def1->nameClass != NULL) {
ret = xmlRelaxNGCompareNameClasses(def1->nameClass, def2);
} else {
ret = 0;
}
} else {
ret = 1;
}
} else if (def1->type == XML_RELAXNG_TEXT) {
if (def2->type == XML_RELAXNG_TEXT)
return (0);
return (1);
} else if (def1->type == XML_RELAXNG_EXCEPT) {
TODO ret = 0;
} else {
TODO ret = 0;
}
if (ret == 0)
return (ret);
if ((def2->type == XML_RELAXNG_ELEMENT) ||
(def2->type == XML_RELAXNG_ATTRIBUTE)) {
if (def2->name != NULL) {
node.name = def2->name;
} else {
node.name = invalidName;
}
node.ns = &ns;
if (def2->ns != NULL) {
if (def2->ns[0] == 0) {
node.ns = NULL;
} else {
ns.href = def2->ns;
}
} else {
ns.href = invalidName;
}
if (xmlRelaxNGElementMatch(&ctxt, def1, &node)) {
if (def2->nameClass != NULL) {
ret = xmlRelaxNGCompareNameClasses(def2->nameClass, def1);
} else {
ret = 0;
}
} else {
ret = 1;
}
} else {
TODO ret = 0;
}
return (ret);
}
/**
* xmlRelaxNGCompareElemDefLists:
* @ctxt: a Relax-NG parser context
* @defs1: the first list of element/attribute defs
* @defs2: the second list of element/attribute defs
*
* Compare the 2 lists of element or attribute definitions. The comparison
* is that if both lists do not accept the same QNames, it returns 1
* If the 2 lists can accept the same QName the comparison returns 0
*
* Returns 1 disttinct, 0 if equal
*/
static int
xmlRelaxNGCompareElemDefLists(xmlRelaxNGParserCtxtPtr ctxt
ATTRIBUTE_UNUSED, xmlRelaxNGDefinePtr * def1,
xmlRelaxNGDefinePtr * def2)
{
xmlRelaxNGDefinePtr *basedef2 = def2;
if ((def1 == NULL) || (def2 == NULL))
return (1);
if ((*def1 == NULL) || (*def2 == NULL))
return (1);
while (*def1 != NULL) {
while ((*def2) != NULL) {
if (xmlRelaxNGCompareNameClasses(*def1, *def2) == 0)
return (0);
def2++;
}
def2 = basedef2;
def1++;
}
return (1);
}
/**
* xmlRelaxNGGenerateAttributes:
* @ctxt: a Relax-NG parser context
* @def: the definition definition
*
* Check if the definition can only generate attributes
*
* Returns 1 if yes, 0 if no and -1 in case of error.
*/
static int
xmlRelaxNGGenerateAttributes(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr def)
{
xmlRelaxNGDefinePtr parent, cur, tmp;
/*
* Don't run that check in case of error. Infinite recursion
* becomes possible.
*/
if (ctxt->nbErrors != 0)
return (-1);
parent = NULL;
cur = def;
while (cur != NULL) {
if ((cur->type == XML_RELAXNG_ELEMENT) ||
(cur->type == XML_RELAXNG_TEXT) ||
(cur->type == XML_RELAXNG_DATATYPE) ||
(cur->type == XML_RELAXNG_PARAM) ||
(cur->type == XML_RELAXNG_LIST) ||
(cur->type == XML_RELAXNG_VALUE) ||
(cur->type == XML_RELAXNG_EMPTY))
return (0);
if ((cur->type == XML_RELAXNG_CHOICE) ||
(cur->type == XML_RELAXNG_INTERLEAVE) ||
(cur->type == XML_RELAXNG_GROUP) ||
(cur->type == XML_RELAXNG_ONEORMORE) ||
(cur->type == XML_RELAXNG_ZEROORMORE) ||
(cur->type == XML_RELAXNG_OPTIONAL) ||
(cur->type == XML_RELAXNG_PARENTREF) ||
(cur->type == XML_RELAXNG_EXTERNALREF) ||
(cur->type == XML_RELAXNG_REF) ||
(cur->type == XML_RELAXNG_DEF)) {
if (cur->content != NULL) {
parent = cur;
cur = cur->content;
tmp = cur;
while (tmp != NULL) {
tmp->parent = parent;
tmp = tmp->next;
}
continue;
}
}
if (cur == def)
break;
if (cur->next != NULL) {
cur = cur->next;
continue;
}
do {
cur = cur->parent;
if (cur == NULL)
break;
if (cur == def)
return (1);
if (cur->next != NULL) {
cur = cur->next;
break;
}
} while (cur != NULL);
}
return (1);
}
/**
* xmlRelaxNGGetElements:
* @ctxt: a Relax-NG parser context
* @def: the definition definition
* @eora: gather elements (0) or attributes (1)
*
* Compute the list of top elements a definition can generate
*
* Returns a list of elements or NULL if none was found.
*/
static xmlRelaxNGDefinePtr *
xmlRelaxNGGetElements(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr def, int eora)
{
xmlRelaxNGDefinePtr *ret = NULL, parent, cur, tmp;
int len = 0;
int max = 0;
/*
* Don't run that check in case of error. Infinite recursion
* becomes possible.
*/
if (ctxt->nbErrors != 0)
return (NULL);
parent = NULL;
cur = def;
while (cur != NULL) {
if (((eora == 0) && ((cur->type == XML_RELAXNG_ELEMENT) ||
(cur->type == XML_RELAXNG_TEXT))) ||
((eora == 1) && (cur->type == XML_RELAXNG_ATTRIBUTE))) {
if (ret == NULL) {
max = 10;
ret = (xmlRelaxNGDefinePtr *)
xmlMalloc((max + 1) * sizeof(xmlRelaxNGDefinePtr));
if (ret == NULL) {
xmlRngPErrMemory(ctxt, "getting element list\n");
return (NULL);
}
} else if (max <= len) {
xmlRelaxNGDefinePtr *temp;
max *= 2;
temp = xmlRealloc(ret,
(max + 1) * sizeof(xmlRelaxNGDefinePtr));
if (temp == NULL) {
xmlRngPErrMemory(ctxt, "getting element list\n");
xmlFree(ret);
return (NULL);
}
ret = temp;
}
ret[len++] = cur;
ret[len] = NULL;
} else if ((cur->type == XML_RELAXNG_CHOICE) ||
(cur->type == XML_RELAXNG_INTERLEAVE) ||
(cur->type == XML_RELAXNG_GROUP) ||
(cur->type == XML_RELAXNG_ONEORMORE) ||
(cur->type == XML_RELAXNG_ZEROORMORE) ||
(cur->type == XML_RELAXNG_OPTIONAL) ||
(cur->type == XML_RELAXNG_PARENTREF) ||
(cur->type == XML_RELAXNG_REF) ||
(cur->type == XML_RELAXNG_DEF) ||
(cur->type == XML_RELAXNG_EXTERNALREF)) {
/*
* Don't go within elements or attributes or string values.
* Just gather the element top list
*/
if (cur->content != NULL) {
parent = cur;
cur = cur->content;
tmp = cur;
while (tmp != NULL) {
tmp->parent = parent;
tmp = tmp->next;
}
continue;
}
}
if (cur == def)
break;
if (cur->next != NULL) {
cur = cur->next;
continue;
}
do {
cur = cur->parent;
if (cur == NULL)
break;
if (cur == def)
return (ret);
if (cur->next != NULL) {
cur = cur->next;
break;
}
} while (cur != NULL);
}
return (ret);
}
/**
* xmlRelaxNGCheckChoiceDeterminism:
* @ctxt: a Relax-NG parser context
* @def: the choice definition
*
* Also used to find indeterministic pattern in choice
*/
static void
xmlRelaxNGCheckChoiceDeterminism(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr def)
{
xmlRelaxNGDefinePtr **list;
xmlRelaxNGDefinePtr cur;
int nbchild = 0, i, j, ret;
int is_nullable = 0;
int is_indeterminist = 0;
xmlHashTablePtr triage = NULL;
int is_triable = 1;
if ((def == NULL) || (def->type != XML_RELAXNG_CHOICE))
return;
if (def->dflags & IS_PROCESSED)
return;
/*
* Don't run that check in case of error. Infinite recursion
* becomes possible.
*/
if (ctxt->nbErrors != 0)
return;
is_nullable = xmlRelaxNGIsNullable(def);
cur = def->content;
while (cur != NULL) {
nbchild++;
cur = cur->next;
}
list = (xmlRelaxNGDefinePtr **) xmlMalloc(nbchild *
sizeof(xmlRelaxNGDefinePtr
*));
if (list == NULL) {
xmlRngPErrMemory(ctxt, "building choice\n");
return;
}
i = 0;
/*
* a bit strong but safe
*/
if (is_nullable == 0) {
triage = xmlHashCreate(10);
} else {
is_triable = 0;
}
cur = def->content;
while (cur != NULL) {
list[i] = xmlRelaxNGGetElements(ctxt, cur, 0);
if ((list[i] == NULL) || (list[i][0] == NULL)) {
is_triable = 0;
} else if (is_triable == 1) {
xmlRelaxNGDefinePtr *tmp;
int res;
tmp = list[i];
while ((*tmp != NULL) && (is_triable == 1)) {
if ((*tmp)->type == XML_RELAXNG_TEXT) {
res = xmlHashAddEntry2(triage,
BAD_CAST "#text", NULL,
(void *) cur);
if (res != 0)
is_triable = -1;
} else if (((*tmp)->type == XML_RELAXNG_ELEMENT) &&
((*tmp)->name != NULL)) {
if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
res = xmlHashAddEntry2(triage,
(*tmp)->name, NULL,
(void *) cur);
else
res = xmlHashAddEntry2(triage,
(*tmp)->name, (*tmp)->ns,
(void *) cur);
if (res != 0)
is_triable = -1;
} else if ((*tmp)->type == XML_RELAXNG_ELEMENT) {
if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
res = xmlHashAddEntry2(triage,
BAD_CAST "#any", NULL,
(void *) cur);
else
res = xmlHashAddEntry2(triage,
BAD_CAST "#any", (*tmp)->ns,
(void *) cur);
if (res != 0)
is_triable = -1;
} else {
is_triable = -1;
}
tmp++;
}
}
i++;
cur = cur->next;
}
for (i = 0; i < nbchild; i++) {
if (list[i] == NULL)
continue;
for (j = 0; j < i; j++) {
if (list[j] == NULL)
continue;
ret = xmlRelaxNGCompareElemDefLists(ctxt, list[i], list[j]);
if (ret == 0) {
is_indeterminist = 1;
}
}
}
for (i = 0; i < nbchild; i++) {
if (list[i] != NULL)
xmlFree(list[i]);
}
xmlFree(list);
if (is_indeterminist) {
def->dflags |= IS_INDETERMINIST;
}
if (is_triable == 1) {
def->dflags |= IS_TRIABLE;
def->data = triage;
} else if (triage != NULL) {
xmlHashFree(triage, NULL);
}
def->dflags |= IS_PROCESSED;
}
/**
* xmlRelaxNGCheckGroupAttrs:
* @ctxt: a Relax-NG parser context
* @def: the group definition
*
* Detects violations of rule 7.3
*/
static void
xmlRelaxNGCheckGroupAttrs(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr def)
{
xmlRelaxNGDefinePtr **list;
xmlRelaxNGDefinePtr cur;
int nbchild = 0, i, j, ret;
if ((def == NULL) ||
((def->type != XML_RELAXNG_GROUP) &&
(def->type != XML_RELAXNG_ELEMENT)))
return;
if (def->dflags & IS_PROCESSED)
return;
/*
* Don't run that check in case of error. Infinite recursion
* becomes possible.
*/
if (ctxt->nbErrors != 0)
return;
cur = def->attrs;
while (cur != NULL) {
nbchild++;
cur = cur->next;
}
cur = def->content;
while (cur != NULL) {
nbchild++;
cur = cur->next;
}
list = (xmlRelaxNGDefinePtr **) xmlMalloc(nbchild *
sizeof(xmlRelaxNGDefinePtr
*));
if (list == NULL) {
xmlRngPErrMemory(ctxt, "building group\n");
return;
}
i = 0;
cur = def->attrs;
while (cur != NULL) {
list[i] = xmlRelaxNGGetElements(ctxt, cur, 1);
i++;
cur = cur->next;
}
cur = def->content;
while (cur != NULL) {
list[i] = xmlRelaxNGGetElements(ctxt, cur, 1);
i++;
cur = cur->next;
}
for (i = 0; i < nbchild; i++) {
if (list[i] == NULL)
continue;
for (j = 0; j < i; j++) {
if (list[j] == NULL)
continue;
ret = xmlRelaxNGCompareElemDefLists(ctxt, list[i], list[j]);
if (ret == 0) {
xmlRngPErr(ctxt, def->node, XML_RNGP_GROUP_ATTR_CONFLICT,
"Attributes conflicts in group\n", NULL, NULL);
}
}
}
for (i = 0; i < nbchild; i++) {
if (list[i] != NULL)
xmlFree(list[i]);
}
xmlFree(list);
def->dflags |= IS_PROCESSED;
}
/**
* xmlRelaxNGComputeInterleaves:
* @def: the interleave definition
* @ctxt: a Relax-NG parser context
* @name: the definition name
*
* A lot of work for preprocessing interleave definitions
* is potentially needed to get a decent execution speed at runtime
* - trying to get a total order on the element nodes generated
* by the interleaves, order the list of interleave definitions
* following that order.
* - if <text/> is used to handle mixed content, it is better to
* flag this in the define and simplify the runtime checking
* algorithm
*/
static void
xmlRelaxNGComputeInterleaves(xmlRelaxNGDefinePtr def,
xmlRelaxNGParserCtxtPtr ctxt,
xmlChar * name ATTRIBUTE_UNUSED)
{
xmlRelaxNGDefinePtr cur, *tmp;
xmlRelaxNGPartitionPtr partitions = NULL;
xmlRelaxNGInterleaveGroupPtr *groups = NULL;
xmlRelaxNGInterleaveGroupPtr group;
int i, j, ret, res;
int nbgroups = 0;
int nbchild = 0;
int is_mixed = 0;
int is_determinist = 1;
/*
* Don't run that check in case of error. Infinite recursion
* becomes possible.
*/
if (ctxt->nbErrors != 0)
return;
#ifdef DEBUG_INTERLEAVE
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGComputeInterleaves(%s)\n", name);
#endif
cur = def->content;
while (cur != NULL) {
nbchild++;
cur = cur->next;
}
#ifdef DEBUG_INTERLEAVE
xmlGenericError(xmlGenericErrorContext, " %d child\n", nbchild);
#endif
groups = (xmlRelaxNGInterleaveGroupPtr *)
xmlMalloc(nbchild * sizeof(xmlRelaxNGInterleaveGroupPtr));
if (groups == NULL)
goto error;
cur = def->content;
while (cur != NULL) {
groups[nbgroups] = (xmlRelaxNGInterleaveGroupPtr)
xmlMalloc(sizeof(xmlRelaxNGInterleaveGroup));
if (groups[nbgroups] == NULL)
goto error;
if (cur->type == XML_RELAXNG_TEXT)
is_mixed++;
groups[nbgroups]->rule = cur;
groups[nbgroups]->defs = xmlRelaxNGGetElements(ctxt, cur, 0);
groups[nbgroups]->attrs = xmlRelaxNGGetElements(ctxt, cur, 1);
nbgroups++;
cur = cur->next;
}
#ifdef DEBUG_INTERLEAVE
xmlGenericError(xmlGenericErrorContext, " %d groups\n", nbgroups);
#endif
/*
* Let's check that all rules makes a partitions according to 7.4
*/
partitions = (xmlRelaxNGPartitionPtr)
xmlMalloc(sizeof(xmlRelaxNGPartition));
if (partitions == NULL)
goto error;
memset(partitions, 0, sizeof(xmlRelaxNGPartition));
partitions->nbgroups = nbgroups;
partitions->triage = xmlHashCreate(nbgroups);
for (i = 0; i < nbgroups; i++) {
group = groups[i];
for (j = i + 1; j < nbgroups; j++) {
if (groups[j] == NULL)
continue;
ret = xmlRelaxNGCompareElemDefLists(ctxt, group->defs,
groups[j]->defs);
if (ret == 0) {
xmlRngPErr(ctxt, def->node, XML_RNGP_ELEM_TEXT_CONFLICT,
"Element or text conflicts in interleave\n",
NULL, NULL);
}
ret = xmlRelaxNGCompareElemDefLists(ctxt, group->attrs,
groups[j]->attrs);
if (ret == 0) {
xmlRngPErr(ctxt, def->node, XML_RNGP_ATTR_CONFLICT,
"Attributes conflicts in interleave\n", NULL,
NULL);
}
}
tmp = group->defs;
if ((tmp != NULL) && (*tmp != NULL)) {
while (*tmp != NULL) {
if ((*tmp)->type == XML_RELAXNG_TEXT) {
res = xmlHashAddEntry2(partitions->triage,
BAD_CAST "#text", NULL,
(void *) (long) (i + 1));
if (res != 0)
is_determinist = -1;
} else if (((*tmp)->type == XML_RELAXNG_ELEMENT) &&
((*tmp)->name != NULL)) {
if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
res = xmlHashAddEntry2(partitions->triage,
(*tmp)->name, NULL,
(void *) (long) (i + 1));
else
res = xmlHashAddEntry2(partitions->triage,
(*tmp)->name, (*tmp)->ns,
(void *) (long) (i + 1));
if (res != 0)
is_determinist = -1;
} else if ((*tmp)->type == XML_RELAXNG_ELEMENT) {
if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
res = xmlHashAddEntry2(partitions->triage,
BAD_CAST "#any", NULL,
(void *) (long) (i + 1));
else
res = xmlHashAddEntry2(partitions->triage,
BAD_CAST "#any", (*tmp)->ns,
(void *) (long) (i + 1));
if ((*tmp)->nameClass != NULL)
is_determinist = 2;
if (res != 0)
is_determinist = -1;
} else {
is_determinist = -1;
}
tmp++;
}
} else {
is_determinist = 0;
}
}
partitions->groups = groups;
/*
* and save the partition list back in the def
*/
def->data = partitions;
if (is_mixed != 0)
def->dflags |= IS_MIXED;
if (is_determinist == 1)
partitions->flags = IS_DETERMINIST;
if (is_determinist == 2)
partitions->flags = IS_DETERMINIST | IS_NEEDCHECK;
return;
error:
xmlRngPErrMemory(ctxt, "in interleave computation\n");
if (groups != NULL) {
for (i = 0; i < nbgroups; i++)
if (groups[i] != NULL) {
if (groups[i]->defs != NULL)
xmlFree(groups[i]->defs);
xmlFree(groups[i]);
}
xmlFree(groups);
}
xmlRelaxNGFreePartition(partitions);
}
/**
* xmlRelaxNGParseInterleave:
* @ctxt: a Relax-NG parser context
* @node: the data node.
*
* parse the content of a RelaxNG interleave node.
*
* Returns the definition pointer or NULL in case of error
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParseInterleave(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDefinePtr def = NULL;
xmlRelaxNGDefinePtr last = NULL, cur;
xmlNodePtr child;
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL) {
return (NULL);
}
def->type = XML_RELAXNG_INTERLEAVE;
if (ctxt->interleaves == NULL)
ctxt->interleaves = xmlHashCreate(10);
if (ctxt->interleaves == NULL) {
xmlRngPErrMemory(ctxt, "create interleaves\n");
} else {
char name[32];
snprintf(name, 32, "interleave%d", ctxt->nbInterleaves++);
if (xmlHashAddEntry(ctxt->interleaves, BAD_CAST name, def) < 0) {
xmlRngPErr(ctxt, node, XML_RNGP_INTERLEAVE_ADD,
"Failed to add %s to hash table\n",
(const xmlChar *) name, NULL);
}
}
child = node->children;
if (child == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_INTERLEAVE_NO_CONTENT,
"Element interleave is empty\n", NULL, NULL);
}
while (child != NULL) {
if (IS_RELAXNG(child, "element")) {
cur = xmlRelaxNGParseElement(ctxt, child);
} else {
cur = xmlRelaxNGParsePattern(ctxt, child);
}
if (cur != NULL) {
cur->parent = def;
if (last == NULL) {
def->content = last = cur;
} else {
last->next = cur;
last = cur;
}
}
child = child->next;
}
return (def);
}
/**
* xmlRelaxNGParseInclude:
* @ctxt: a Relax-NG parser context
* @node: the include node
*
* Integrate the content of an include node in the current grammar
*
* Returns 0 in case of success or -1 in case of error
*/
static int
xmlRelaxNGParseInclude(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGIncludePtr incl;
xmlNodePtr root;
int ret = 0, tmp;
incl = node->psvi;
if (incl == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_INCLUDE_EMPTY,
"Include node has no data\n", NULL, NULL);
return (-1);
}
root = xmlDocGetRootElement(incl->doc);
if (root == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY, "Include document is empty\n",
NULL, NULL);
return (-1);
}
if (!xmlStrEqual(root->name, BAD_CAST "grammar")) {
xmlRngPErr(ctxt, node, XML_RNGP_GRAMMAR_MISSING,
"Include document root is not a grammar\n", NULL, NULL);
return (-1);
}
/*
* Merge the definition from both the include and the internal list
*/
if (root->children != NULL) {
tmp = xmlRelaxNGParseGrammarContent(ctxt, root->children);
if (tmp != 0)
ret = -1;
}
if (node->children != NULL) {
tmp = xmlRelaxNGParseGrammarContent(ctxt, node->children);
if (tmp != 0)
ret = -1;
}
return (ret);
}
/**
* xmlRelaxNGParseDefine:
* @ctxt: a Relax-NG parser context
* @node: the define node
*
* parse the content of a RelaxNG define element node.
*
* Returns 0 in case of success or -1 in case of error
*/
static int
xmlRelaxNGParseDefine(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlChar *name;
int ret = 0, tmp;
xmlRelaxNGDefinePtr def;
const xmlChar *olddefine;
name = xmlGetProp(node, BAD_CAST "name");
if (name == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_NAME_MISSING,
"define has no name\n", NULL, NULL);
} else {
xmlRelaxNGNormExtSpace(name);
if (xmlValidateNCName(name, 0)) {
xmlRngPErr(ctxt, node, XML_RNGP_INVALID_DEFINE_NAME,
"define name '%s' is not an NCName\n", name, NULL);
}
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL) {
xmlFree(name);
return (-1);
}
def->type = XML_RELAXNG_DEF;
def->name = name;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_EMPTY,
"define has no children\n", NULL, NULL);
} else {
olddefine = ctxt->define;
ctxt->define = name;
def->content =
xmlRelaxNGParsePatterns(ctxt, node->children, 0);
ctxt->define = olddefine;
}
if (ctxt->grammar->defs == NULL)
ctxt->grammar->defs = xmlHashCreate(10);
if (ctxt->grammar->defs == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_CREATE_FAILED,
"Could not create definition hash\n", NULL, NULL);
ret = -1;
} else {
tmp = xmlHashAddEntry(ctxt->grammar->defs, name, def);
if (tmp < 0) {
xmlRelaxNGDefinePtr prev;
prev = xmlHashLookup(ctxt->grammar->defs, name);
if (prev == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_CREATE_FAILED,
"Internal error on define aggregation of %s\n",
name, NULL);
ret = -1;
} else {
while (prev->nextHash != NULL)
prev = prev->nextHash;
prev->nextHash = def;
}
}
}
}
return (ret);
}
/**
* xmlRelaxNGProcessExternalRef:
* @ctxt: the parser context
* @node: the externlRef node
*
* Process and compile an externlRef node
*
* Returns the xmlRelaxNGDefinePtr or NULL in case of error
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGProcessExternalRef(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDocumentPtr docu;
xmlNodePtr root, tmp;
xmlChar *ns;
int newNs = 0, oldflags;
xmlRelaxNGDefinePtr def;
docu = node->psvi;
if (docu != NULL) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_EXTERNALREF;
if (docu->content == NULL) {
/*
* Then do the parsing for good
*/
root = xmlDocGetRootElement(docu->doc);
if (root == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EXTERNALREF_EMTPY,
"xmlRelaxNGParse: %s is empty\n", ctxt->URL,
NULL);
return (NULL);
}
/*
* ns transmission rules
*/
ns = xmlGetProp(root, BAD_CAST "ns");
if (ns == NULL) {
tmp = node;
while ((tmp != NULL) && (tmp->type == XML_ELEMENT_NODE)) {
ns = xmlGetProp(tmp, BAD_CAST "ns");
if (ns != NULL) {
break;
}
tmp = tmp->parent;
}
if (ns != NULL) {
xmlSetProp(root, BAD_CAST "ns", ns);
newNs = 1;
xmlFree(ns);
}
} else {
xmlFree(ns);
}
/*
* Parsing to get a precompiled schemas.
*/
oldflags = ctxt->flags;
ctxt->flags |= XML_RELAXNG_IN_EXTERNALREF;
docu->schema = xmlRelaxNGParseDocument(ctxt, root);
ctxt->flags = oldflags;
if ((docu->schema != NULL) &&
(docu->schema->topgrammar != NULL)) {
docu->content = docu->schema->topgrammar->start;
}
/*
* the externalRef may be reused in a different ns context
*/
if (newNs == 1) {
xmlUnsetProp(root, BAD_CAST "ns");
}
}
def->content = docu->content;
} else {
def = NULL;
}
return (def);
}
/**
* xmlRelaxNGParsePattern:
* @ctxt: a Relax-NG parser context
* @node: the pattern node.
*
* parse the content of a RelaxNG pattern node.
*
* Returns the definition pointer or NULL in case of error or if no
* pattern is generated.
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParsePattern(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDefinePtr def = NULL;
if (node == NULL) {
return (NULL);
}
if (IS_RELAXNG(node, "element")) {
def = xmlRelaxNGParseElement(ctxt, node);
} else if (IS_RELAXNG(node, "attribute")) {
def = xmlRelaxNGParseAttribute(ctxt, node);
} else if (IS_RELAXNG(node, "empty")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_EMPTY;
if (node->children != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_NOT_EMPTY,
"empty: had a child node\n", NULL, NULL);
}
} else if (IS_RELAXNG(node, "text")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_TEXT;
if (node->children != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_TEXT_HAS_CHILD,
"text: had a child node\n", NULL, NULL);
}
} else if (IS_RELAXNG(node, "zeroOrMore")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_ZEROORMORE;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
"Element %s is empty\n", node->name, NULL);
} else {
def->content =
xmlRelaxNGParsePatterns(ctxt, node->children, 1);
}
} else if (IS_RELAXNG(node, "oneOrMore")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_ONEORMORE;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
"Element %s is empty\n", node->name, NULL);
} else {
def->content =
xmlRelaxNGParsePatterns(ctxt, node->children, 1);
}
} else if (IS_RELAXNG(node, "optional")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_OPTIONAL;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
"Element %s is empty\n", node->name, NULL);
} else {
def->content =
xmlRelaxNGParsePatterns(ctxt, node->children, 1);
}
} else if (IS_RELAXNG(node, "choice")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_CHOICE;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
"Element %s is empty\n", node->name, NULL);
} else {
def->content =
xmlRelaxNGParsePatterns(ctxt, node->children, 0);
}
} else if (IS_RELAXNG(node, "group")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_GROUP;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
"Element %s is empty\n", node->name, NULL);
} else {
def->content =
xmlRelaxNGParsePatterns(ctxt, node->children, 0);
}
} else if (IS_RELAXNG(node, "ref")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_REF;
def->name = xmlGetProp(node, BAD_CAST "name");
if (def->name == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_REF_NO_NAME, "ref has no name\n",
NULL, NULL);
} else {
xmlRelaxNGNormExtSpace(def->name);
if (xmlValidateNCName(def->name, 0)) {
xmlRngPErr(ctxt, node, XML_RNGP_REF_NAME_INVALID,
"ref name '%s' is not an NCName\n", def->name,
NULL);
}
}
if (node->children != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_REF_NOT_EMPTY, "ref is not empty\n",
NULL, NULL);
}
if (ctxt->grammar->refs == NULL)
ctxt->grammar->refs = xmlHashCreate(10);
if (ctxt->grammar->refs == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_REF_CREATE_FAILED,
"Could not create references hash\n", NULL, NULL);
def = NULL;
} else {
int tmp;
tmp = xmlHashAddEntry(ctxt->grammar->refs, def->name, def);
if (tmp < 0) {
xmlRelaxNGDefinePtr prev;
prev = (xmlRelaxNGDefinePtr)
xmlHashLookup(ctxt->grammar->refs, def->name);
if (prev == NULL) {
if (def->name != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_REF_CREATE_FAILED,
"Error refs definitions '%s'\n",
def->name, NULL);
} else {
xmlRngPErr(ctxt, node, XML_RNGP_REF_CREATE_FAILED,
"Error refs definitions\n",
NULL, NULL);
}
def = NULL;
} else {
def->nextHash = prev->nextHash;
prev->nextHash = def;
}
}
}
} else if (IS_RELAXNG(node, "data")) {
def = xmlRelaxNGParseData(ctxt, node);
} else if (IS_RELAXNG(node, "value")) {
def = xmlRelaxNGParseValue(ctxt, node);
} else if (IS_RELAXNG(node, "list")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_LIST;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
"Element %s is empty\n", node->name, NULL);
} else {
def->content =
xmlRelaxNGParsePatterns(ctxt, node->children, 0);
}
} else if (IS_RELAXNG(node, "interleave")) {
def = xmlRelaxNGParseInterleave(ctxt, node);
} else if (IS_RELAXNG(node, "externalRef")) {
def = xmlRelaxNGProcessExternalRef(ctxt, node);
} else if (IS_RELAXNG(node, "notAllowed")) {
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_NOT_ALLOWED;
if (node->children != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_NOTALLOWED_NOT_EMPTY,
"xmlRelaxNGParse: notAllowed element is not empty\n",
NULL, NULL);
}
} else if (IS_RELAXNG(node, "grammar")) {
xmlRelaxNGGrammarPtr grammar, old;
xmlRelaxNGGrammarPtr oldparent;
#ifdef DEBUG_GRAMMAR
xmlGenericError(xmlGenericErrorContext,
"Found <grammar> pattern\n");
#endif
oldparent = ctxt->parentgrammar;
old = ctxt->grammar;
ctxt->parentgrammar = old;
grammar = xmlRelaxNGParseGrammar(ctxt, node->children);
if (old != NULL) {
ctxt->grammar = old;
ctxt->parentgrammar = oldparent;
#if 0
if (grammar != NULL) {
grammar->next = old->next;
old->next = grammar;
}
#endif
}
if (grammar != NULL)
def = grammar->start;
else
def = NULL;
} else if (IS_RELAXNG(node, "parentRef")) {
if (ctxt->parentgrammar == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NO_PARENT,
"Use of parentRef without a parent grammar\n", NULL,
NULL);
return (NULL);
}
def = xmlRelaxNGNewDefine(ctxt, node);
if (def == NULL)
return (NULL);
def->type = XML_RELAXNG_PARENTREF;
def->name = xmlGetProp(node, BAD_CAST "name");
if (def->name == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NO_NAME,
"parentRef has no name\n", NULL, NULL);
} else {
xmlRelaxNGNormExtSpace(def->name);
if (xmlValidateNCName(def->name, 0)) {
xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NAME_INVALID,
"parentRef name '%s' is not an NCName\n",
def->name, NULL);
}
}
if (node->children != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NOT_EMPTY,
"parentRef is not empty\n", NULL, NULL);
}
if (ctxt->parentgrammar->refs == NULL)
ctxt->parentgrammar->refs = xmlHashCreate(10);
if (ctxt->parentgrammar->refs == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_CREATE_FAILED,
"Could not create references hash\n", NULL, NULL);
def = NULL;
} else if (def->name != NULL) {
int tmp;
tmp =
xmlHashAddEntry(ctxt->parentgrammar->refs, def->name, def);
if (tmp < 0) {
xmlRelaxNGDefinePtr prev;
prev = (xmlRelaxNGDefinePtr)
xmlHashLookup(ctxt->parentgrammar->refs, def->name);
if (prev == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_CREATE_FAILED,
"Internal error parentRef definitions '%s'\n",
def->name, NULL);
def = NULL;
} else {
def->nextHash = prev->nextHash;
prev->nextHash = def;
}
}
}
} else if (IS_RELAXNG(node, "mixed")) {
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT, "Mixed is empty\n",
NULL, NULL);
def = NULL;
} else {
def = xmlRelaxNGParseInterleave(ctxt, node);
if (def != NULL) {
xmlRelaxNGDefinePtr tmp;
if ((def->content != NULL) && (def->content->next != NULL)) {
tmp = xmlRelaxNGNewDefine(ctxt, node);
if (tmp != NULL) {
tmp->type = XML_RELAXNG_GROUP;
tmp->content = def->content;
def->content = tmp;
}
}
tmp = xmlRelaxNGNewDefine(ctxt, node);
if (tmp == NULL)
return (def);
tmp->type = XML_RELAXNG_TEXT;
tmp->next = def->content;
def->content = tmp;
}
}
} else {
xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_CONSTRUCT,
"Unexpected node %s is not a pattern\n", node->name,
NULL);
def = NULL;
}
return (def);
}
/**
* xmlRelaxNGParseAttribute:
* @ctxt: a Relax-NG parser context
* @node: the element node
*
* parse the content of a RelaxNG attribute node.
*
* Returns the definition pointer or NULL in case of error.
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParseAttribute(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDefinePtr ret, cur;
xmlNodePtr child;
int old_flags;
ret = xmlRelaxNGNewDefine(ctxt, node);
if (ret == NULL)
return (NULL);
ret->type = XML_RELAXNG_ATTRIBUTE;
ret->parent = ctxt->def;
child = node->children;
if (child == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_EMPTY,
"xmlRelaxNGParseattribute: attribute has no children\n",
NULL, NULL);
return (ret);
}
old_flags = ctxt->flags;
ctxt->flags |= XML_RELAXNG_IN_ATTRIBUTE;
cur = xmlRelaxNGParseNameClass(ctxt, child, ret);
if (cur != NULL)
child = child->next;
if (child != NULL) {
cur = xmlRelaxNGParsePattern(ctxt, child);
if (cur != NULL) {
switch (cur->type) {
case XML_RELAXNG_EMPTY:
case XML_RELAXNG_NOT_ALLOWED:
case XML_RELAXNG_TEXT:
case XML_RELAXNG_ELEMENT:
case XML_RELAXNG_DATATYPE:
case XML_RELAXNG_VALUE:
case XML_RELAXNG_LIST:
case XML_RELAXNG_REF:
case XML_RELAXNG_PARENTREF:
case XML_RELAXNG_EXTERNALREF:
case XML_RELAXNG_DEF:
case XML_RELAXNG_ONEORMORE:
case XML_RELAXNG_ZEROORMORE:
case XML_RELAXNG_OPTIONAL:
case XML_RELAXNG_CHOICE:
case XML_RELAXNG_GROUP:
case XML_RELAXNG_INTERLEAVE:
case XML_RELAXNG_ATTRIBUTE:
ret->content = cur;
cur->parent = ret;
break;
case XML_RELAXNG_START:
case XML_RELAXNG_PARAM:
case XML_RELAXNG_EXCEPT:
xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_CONTENT,
"attribute has invalid content\n", NULL,
NULL);
break;
case XML_RELAXNG_NOOP:
xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_NOOP,
"RNG Internal error, noop found in attribute\n",
NULL, NULL);
break;
}
}
child = child->next;
}
if (child != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_CHILDREN,
"attribute has multiple children\n", NULL, NULL);
}
ctxt->flags = old_flags;
return (ret);
}
/**
* xmlRelaxNGParseExceptNameClass:
* @ctxt: a Relax-NG parser context
* @node: the except node
* @attr: 1 if within an attribute, 0 if within an element
*
* parse the content of a RelaxNG nameClass node.
*
* Returns the definition pointer or NULL in case of error.
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParseExceptNameClass(xmlRelaxNGParserCtxtPtr ctxt,
xmlNodePtr node, int attr)
{
xmlRelaxNGDefinePtr ret, cur, last = NULL;
xmlNodePtr child;
if (!IS_RELAXNG(node, "except")) {
xmlRngPErr(ctxt, node, XML_RNGP_EXCEPT_MISSING,
"Expecting an except node\n", NULL, NULL);
return (NULL);
}
if (node->next != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EXCEPT_MULTIPLE,
"exceptNameClass allows only a single except node\n",
NULL, NULL);
}
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_EXCEPT_EMPTY, "except has no content\n",
NULL, NULL);
return (NULL);
}
ret = xmlRelaxNGNewDefine(ctxt, node);
if (ret == NULL)
return (NULL);
ret->type = XML_RELAXNG_EXCEPT;
child = node->children;
while (child != NULL) {
cur = xmlRelaxNGNewDefine(ctxt, child);
if (cur == NULL)
break;
if (attr)
cur->type = XML_RELAXNG_ATTRIBUTE;
else
cur->type = XML_RELAXNG_ELEMENT;
if (xmlRelaxNGParseNameClass(ctxt, child, cur) != NULL) {
if (last == NULL) {
ret->content = cur;
} else {
last->next = cur;
}
last = cur;
}
child = child->next;
}
return (ret);
}
/**
* xmlRelaxNGParseNameClass:
* @ctxt: a Relax-NG parser context
* @node: the nameClass node
* @def: the current definition
*
* parse the content of a RelaxNG nameClass node.
*
* Returns the definition pointer or NULL in case of error.
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParseNameClass(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node,
xmlRelaxNGDefinePtr def)
{
xmlRelaxNGDefinePtr ret, tmp;
xmlChar *val;
ret = def;
if ((IS_RELAXNG(node, "name")) || (IS_RELAXNG(node, "anyName")) ||
(IS_RELAXNG(node, "nsName"))) {
if ((def->type != XML_RELAXNG_ELEMENT) &&
(def->type != XML_RELAXNG_ATTRIBUTE)) {
ret = xmlRelaxNGNewDefine(ctxt, node);
if (ret == NULL)
return (NULL);
ret->parent = def;
if (ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE)
ret->type = XML_RELAXNG_ATTRIBUTE;
else
ret->type = XML_RELAXNG_ELEMENT;
}
}
if (IS_RELAXNG(node, "name")) {
val = xmlNodeGetContent(node);
xmlRelaxNGNormExtSpace(val);
if (xmlValidateNCName(val, 0)) {
if (node->parent != NULL)
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_NAME,
"Element %s name '%s' is not an NCName\n",
node->parent->name, val);
else
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_NAME,
"name '%s' is not an NCName\n",
val, NULL);
}
ret->name = val;
val = xmlGetProp(node, BAD_CAST "ns");
ret->ns = val;
if ((ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE) &&
(val != NULL) &&
(xmlStrEqual(val, BAD_CAST "http://www.w3.org/2000/xmlns"))) {
xmlRngPErr(ctxt, node, XML_RNGP_XML_NS,
"Attribute with namespace '%s' is not allowed\n",
val, NULL);
}
if ((ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE) &&
(val != NULL) &&
(val[0] == 0) && (xmlStrEqual(ret->name, BAD_CAST "xmlns"))) {
xmlRngPErr(ctxt, node, XML_RNGP_XMLNS_NAME,
"Attribute with QName 'xmlns' is not allowed\n",
val, NULL);
}
} else if (IS_RELAXNG(node, "anyName")) {
ret->name = NULL;
ret->ns = NULL;
if (node->children != NULL) {
ret->nameClass =
xmlRelaxNGParseExceptNameClass(ctxt, node->children,
(def->type ==
XML_RELAXNG_ATTRIBUTE));
}
} else if (IS_RELAXNG(node, "nsName")) {
ret->name = NULL;
ret->ns = xmlGetProp(node, BAD_CAST "ns");
if (ret->ns == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_NSNAME_NO_NS,
"nsName has no ns attribute\n", NULL, NULL);
}
if ((ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE) &&
(ret->ns != NULL) &&
(xmlStrEqual
(ret->ns, BAD_CAST "http://www.w3.org/2000/xmlns"))) {
xmlRngPErr(ctxt, node, XML_RNGP_XML_NS,
"Attribute with namespace '%s' is not allowed\n",
ret->ns, NULL);
}
if (node->children != NULL) {
ret->nameClass =
xmlRelaxNGParseExceptNameClass(ctxt, node->children,
(def->type ==
XML_RELAXNG_ATTRIBUTE));
}
} else if (IS_RELAXNG(node, "choice")) {
xmlNodePtr child;
xmlRelaxNGDefinePtr last = NULL;
ret = xmlRelaxNGNewDefine(ctxt, node);
if (ret == NULL)
return (NULL);
ret->parent = def;
ret->type = XML_RELAXNG_CHOICE;
if (node->children == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_CHOICE_EMPTY,
"Element choice is empty\n", NULL, NULL);
} else {
child = node->children;
while (child != NULL) {
tmp = xmlRelaxNGParseNameClass(ctxt, child, ret);
if (tmp != NULL) {
if (last == NULL) {
last = ret->nameClass = tmp;
} else {
last->next = tmp;
last = tmp;
}
}
child = child->next;
}
}
} else {
xmlRngPErr(ctxt, node, XML_RNGP_CHOICE_CONTENT,
"expecting name, anyName, nsName or choice : got %s\n",
node->name, NULL);
return (NULL);
}
if (ret != def) {
if (def->nameClass == NULL) {
def->nameClass = ret;
} else {
tmp = def->nameClass;
while (tmp->next != NULL) {
tmp = tmp->next;
}
tmp->next = ret;
}
}
return (ret);
}
/**
* xmlRelaxNGParseElement:
* @ctxt: a Relax-NG parser context
* @node: the element node
*
* parse the content of a RelaxNG element node.
*
* Returns the definition pointer or NULL in case of error.
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParseElement(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGDefinePtr ret, cur, last;
xmlNodePtr child;
const xmlChar *olddefine;
ret = xmlRelaxNGNewDefine(ctxt, node);
if (ret == NULL)
return (NULL);
ret->type = XML_RELAXNG_ELEMENT;
ret->parent = ctxt->def;
child = node->children;
if (child == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_EMPTY,
"xmlRelaxNGParseElement: element has no children\n",
NULL, NULL);
return (ret);
}
cur = xmlRelaxNGParseNameClass(ctxt, child, ret);
if (cur != NULL)
child = child->next;
if (child == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_NO_CONTENT,
"xmlRelaxNGParseElement: element has no content\n",
NULL, NULL);
return (ret);
}
olddefine = ctxt->define;
ctxt->define = NULL;
last = NULL;
while (child != NULL) {
cur = xmlRelaxNGParsePattern(ctxt, child);
if (cur != NULL) {
cur->parent = ret;
switch (cur->type) {
case XML_RELAXNG_EMPTY:
case XML_RELAXNG_NOT_ALLOWED:
case XML_RELAXNG_TEXT:
case XML_RELAXNG_ELEMENT:
case XML_RELAXNG_DATATYPE:
case XML_RELAXNG_VALUE:
case XML_RELAXNG_LIST:
case XML_RELAXNG_REF:
case XML_RELAXNG_PARENTREF:
case XML_RELAXNG_EXTERNALREF:
case XML_RELAXNG_DEF:
case XML_RELAXNG_ZEROORMORE:
case XML_RELAXNG_ONEORMORE:
case XML_RELAXNG_OPTIONAL:
case XML_RELAXNG_CHOICE:
case XML_RELAXNG_GROUP:
case XML_RELAXNG_INTERLEAVE:
if (last == NULL) {
ret->content = last = cur;
} else {
if ((last->type == XML_RELAXNG_ELEMENT) &&
(ret->content == last)) {
ret->content = xmlRelaxNGNewDefine(ctxt, node);
if (ret->content != NULL) {
ret->content->type = XML_RELAXNG_GROUP;
ret->content->content = last;
} else {
ret->content = last;
}
}
last->next = cur;
last = cur;
}
break;
case XML_RELAXNG_ATTRIBUTE:
cur->next = ret->attrs;
ret->attrs = cur;
break;
case XML_RELAXNG_START:
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
"RNG Internal error, start found in element\n",
NULL, NULL);
break;
case XML_RELAXNG_PARAM:
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
"RNG Internal error, param found in element\n",
NULL, NULL);
break;
case XML_RELAXNG_EXCEPT:
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
"RNG Internal error, except found in element\n",
NULL, NULL);
break;
case XML_RELAXNG_NOOP:
xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
"RNG Internal error, noop found in element\n",
NULL, NULL);
break;
}
}
child = child->next;
}
ctxt->define = olddefine;
return (ret);
}
/**
* xmlRelaxNGParsePatterns:
* @ctxt: a Relax-NG parser context
* @nodes: list of nodes
* @group: use an implicit <group> for elements
*
* parse the content of a RelaxNG start node.
*
* Returns the definition pointer or NULL in case of error.
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGParsePatterns(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr nodes,
int group)
{
xmlRelaxNGDefinePtr def = NULL, last = NULL, cur, parent;
parent = ctxt->def;
while (nodes != NULL) {
if (IS_RELAXNG(nodes, "element")) {
cur = xmlRelaxNGParseElement(ctxt, nodes);
if (def == NULL) {
def = last = cur;
} else {
if ((group == 1) && (def->type == XML_RELAXNG_ELEMENT) &&
(def == last)) {
def = xmlRelaxNGNewDefine(ctxt, nodes);
def->type = XML_RELAXNG_GROUP;
def->content = last;
}
last->next = cur;
last = cur;
}
cur->parent = parent;
} else {
cur = xmlRelaxNGParsePattern(ctxt, nodes);
if (cur != NULL) {
if (def == NULL) {
def = last = cur;
} else {
last->next = cur;
last = cur;
}
}
}
nodes = nodes->next;
}
return (def);
}
/**
* xmlRelaxNGParseStart:
* @ctxt: a Relax-NG parser context
* @nodes: start children nodes
*
* parse the content of a RelaxNG start node.
*
* Returns 0 in case of success, -1 in case of error
*/
static int
xmlRelaxNGParseStart(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr nodes)
{
int ret = 0;
xmlRelaxNGDefinePtr def = NULL, last;
if (nodes == NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_START_EMPTY, "start has no children\n",
NULL, NULL);
return (-1);
}
if (IS_RELAXNG(nodes, "empty")) {
def = xmlRelaxNGNewDefine(ctxt, nodes);
if (def == NULL)
return (-1);
def->type = XML_RELAXNG_EMPTY;
if (nodes->children != NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_EMPTY_CONTENT,
"element empty is not empty\n", NULL, NULL);
}
} else if (IS_RELAXNG(nodes, "notAllowed")) {
def = xmlRelaxNGNewDefine(ctxt, nodes);
if (def == NULL)
return (-1);
def->type = XML_RELAXNG_NOT_ALLOWED;
if (nodes->children != NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_NOTALLOWED_NOT_EMPTY,
"element notAllowed is not empty\n", NULL, NULL);
}
} else {
def = xmlRelaxNGParsePatterns(ctxt, nodes, 1);
}
if (ctxt->grammar->start != NULL) {
last = ctxt->grammar->start;
while (last->next != NULL)
last = last->next;
last->next = def;
} else {
ctxt->grammar->start = def;
}
nodes = nodes->next;
if (nodes != NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_START_CONTENT,
"start more than one children\n", NULL, NULL);
return (-1);
}
return (ret);
}
/**
* xmlRelaxNGParseGrammarContent:
* @ctxt: a Relax-NG parser context
* @nodes: grammar children nodes
*
* parse the content of a RelaxNG grammar node.
*
* Returns 0 in case of success, -1 in case of error
*/
static int
xmlRelaxNGParseGrammarContent(xmlRelaxNGParserCtxtPtr ctxt,
xmlNodePtr nodes)
{
int ret = 0, tmp;
if (nodes == NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_EMPTY,
"grammar has no children\n", NULL, NULL);
return (-1);
}
while (nodes != NULL) {
if (IS_RELAXNG(nodes, "start")) {
if (nodes->children == NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_START_EMPTY,
"start has no children\n", NULL, NULL);
} else {
tmp = xmlRelaxNGParseStart(ctxt, nodes->children);
if (tmp != 0)
ret = -1;
}
} else if (IS_RELAXNG(nodes, "define")) {
tmp = xmlRelaxNGParseDefine(ctxt, nodes);
if (tmp != 0)
ret = -1;
} else if (IS_RELAXNG(nodes, "include")) {
tmp = xmlRelaxNGParseInclude(ctxt, nodes);
if (tmp != 0)
ret = -1;
} else {
xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_CONTENT,
"grammar has unexpected child %s\n", nodes->name,
NULL);
ret = -1;
}
nodes = nodes->next;
}
return (ret);
}
/**
* xmlRelaxNGCheckReference:
* @ref: the ref
* @ctxt: a Relax-NG parser context
* @name: the name associated to the defines
*
* Applies the 4.17. combine attribute rule for all the define
* element of a given grammar using the same name.
*/
static void
xmlRelaxNGCheckReference(xmlRelaxNGDefinePtr ref,
xmlRelaxNGParserCtxtPtr ctxt,
const xmlChar * name)
{
xmlRelaxNGGrammarPtr grammar;
xmlRelaxNGDefinePtr def, cur;
grammar = ctxt->grammar;
if (grammar == NULL) {
xmlRngPErr(ctxt, ref->node, XML_ERR_INTERNAL_ERROR,
"Internal error: no grammar in CheckReference %s\n",
name, NULL);
return;
}
if (ref->content != NULL) {
xmlRngPErr(ctxt, ref->node, XML_ERR_INTERNAL_ERROR,
"Internal error: reference has content in CheckReference %s\n",
name, NULL);
return;
}
if (grammar->defs != NULL) {
def = xmlHashLookup(grammar->defs, name);
if (def != NULL) {
cur = ref;
while (cur != NULL) {
cur->content = def;
cur = cur->nextHash;
}
} else {
xmlRngPErr(ctxt, ref->node, XML_RNGP_REF_NO_DEF,
"Reference %s has no matching definition\n", name,
NULL);
}
} else {
xmlRngPErr(ctxt, ref->node, XML_RNGP_REF_NO_DEF,
"Reference %s has no matching definition\n", name,
NULL);
}
}
/**
* xmlRelaxNGCheckCombine:
* @define: the define(s) list
* @ctxt: a Relax-NG parser context
* @name: the name associated to the defines
*
* Applies the 4.17. combine attribute rule for all the define
* element of a given grammar using the same name.
*/
static void
xmlRelaxNGCheckCombine(xmlRelaxNGDefinePtr define,
xmlRelaxNGParserCtxtPtr ctxt, const xmlChar * name)
{
xmlChar *combine;
int choiceOrInterleave = -1;
int missing = 0;
xmlRelaxNGDefinePtr cur, last, tmp, tmp2;
if (define->nextHash == NULL)
return;
cur = define;
while (cur != NULL) {
combine = xmlGetProp(cur->node, BAD_CAST "combine");
if (combine != NULL) {
if (xmlStrEqual(combine, BAD_CAST "choice")) {
if (choiceOrInterleave == -1)
choiceOrInterleave = 1;
else if (choiceOrInterleave == 0) {
xmlRngPErr(ctxt, define->node, XML_RNGP_DEF_CHOICE_AND_INTERLEAVE,
"Defines for %s use both 'choice' and 'interleave'\n",
name, NULL);
}
} else if (xmlStrEqual(combine, BAD_CAST "interleave")) {
if (choiceOrInterleave == -1)
choiceOrInterleave = 0;
else if (choiceOrInterleave == 1) {
xmlRngPErr(ctxt, define->node, XML_RNGP_DEF_CHOICE_AND_INTERLEAVE,
"Defines for %s use both 'choice' and 'interleave'\n",
name, NULL);
}
} else {
xmlRngPErr(ctxt, define->node, XML_RNGP_UNKNOWN_COMBINE,
"Defines for %s use unknown combine value '%s''\n",
name, combine);
}
xmlFree(combine);
} else {
if (missing == 0)
missing = 1;
else {
xmlRngPErr(ctxt, define->node, XML_RNGP_NEED_COMBINE,
"Some defines for %s needs the combine attribute\n",
name, NULL);
}
}
cur = cur->nextHash;
}
#ifdef DEBUG
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGCheckCombine(): merging %s defines: %d\n",
name, choiceOrInterleave);
#endif
if (choiceOrInterleave == -1)
choiceOrInterleave = 0;
cur = xmlRelaxNGNewDefine(ctxt, define->node);
if (cur == NULL)
return;
if (choiceOrInterleave == 0)
cur->type = XML_RELAXNG_INTERLEAVE;
else
cur->type = XML_RELAXNG_CHOICE;
tmp = define;
last = NULL;
while (tmp != NULL) {
if (tmp->content != NULL) {
if (tmp->content->next != NULL) {
/*
* we need first to create a wrapper.
*/
tmp2 = xmlRelaxNGNewDefine(ctxt, tmp->content->node);
if (tmp2 == NULL)
break;
tmp2->type = XML_RELAXNG_GROUP;
tmp2->content = tmp->content;
} else {
tmp2 = tmp->content;
}
if (last == NULL) {
cur->content = tmp2;
} else {
last->next = tmp2;
}
last = tmp2;
}
tmp->content = cur;
tmp = tmp->nextHash;
}
define->content = cur;
if (choiceOrInterleave == 0) {
if (ctxt->interleaves == NULL)
ctxt->interleaves = xmlHashCreate(10);
if (ctxt->interleaves == NULL) {
xmlRngPErr(ctxt, define->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
"Failed to create interleaves hash table\n", NULL,
NULL);
} else {
char tmpname[32];
snprintf(tmpname, 32, "interleave%d", ctxt->nbInterleaves++);
if (xmlHashAddEntry(ctxt->interleaves, BAD_CAST tmpname, cur) <
0) {
xmlRngPErr(ctxt, define->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
"Failed to add %s to hash table\n",
(const xmlChar *) tmpname, NULL);
}
}
}
}
/**
* xmlRelaxNGCombineStart:
* @ctxt: a Relax-NG parser context
* @grammar: the grammar
*
* Applies the 4.17. combine rule for all the start
* element of a given grammar.
*/
static void
xmlRelaxNGCombineStart(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGGrammarPtr grammar)
{
xmlRelaxNGDefinePtr starts;
xmlChar *combine;
int choiceOrInterleave = -1;
int missing = 0;
xmlRelaxNGDefinePtr cur;
starts = grammar->start;
if ((starts == NULL) || (starts->next == NULL))
return;
cur = starts;
while (cur != NULL) {
if ((cur->node == NULL) || (cur->node->parent == NULL) ||
(!xmlStrEqual(cur->node->parent->name, BAD_CAST "start"))) {
combine = NULL;
xmlRngPErr(ctxt, cur->node, XML_RNGP_START_MISSING,
"Internal error: start element not found\n", NULL,
NULL);
} else {
combine = xmlGetProp(cur->node->parent, BAD_CAST "combine");
}
if (combine != NULL) {
if (xmlStrEqual(combine, BAD_CAST "choice")) {
if (choiceOrInterleave == -1)
choiceOrInterleave = 1;
else if (choiceOrInterleave == 0) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_START_CHOICE_AND_INTERLEAVE,
"<start> use both 'choice' and 'interleave'\n",
NULL, NULL);
}
} else if (xmlStrEqual(combine, BAD_CAST "interleave")) {
if (choiceOrInterleave == -1)
choiceOrInterleave = 0;
else if (choiceOrInterleave == 1) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_START_CHOICE_AND_INTERLEAVE,
"<start> use both 'choice' and 'interleave'\n",
NULL, NULL);
}
} else {
xmlRngPErr(ctxt, cur->node, XML_RNGP_UNKNOWN_COMBINE,
"<start> uses unknown combine value '%s''\n",
combine, NULL);
}
xmlFree(combine);
} else {
if (missing == 0)
missing = 1;
else {
xmlRngPErr(ctxt, cur->node, XML_RNGP_NEED_COMBINE,
"Some <start> element miss the combine attribute\n",
NULL, NULL);
}
}
cur = cur->next;
}
#ifdef DEBUG
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGCombineStart(): merging <start>: %d\n",
choiceOrInterleave);
#endif
if (choiceOrInterleave == -1)
choiceOrInterleave = 0;
cur = xmlRelaxNGNewDefine(ctxt, starts->node);
if (cur == NULL)
return;
if (choiceOrInterleave == 0)
cur->type = XML_RELAXNG_INTERLEAVE;
else
cur->type = XML_RELAXNG_CHOICE;
cur->content = grammar->start;
grammar->start = cur;
if (choiceOrInterleave == 0) {
if (ctxt->interleaves == NULL)
ctxt->interleaves = xmlHashCreate(10);
if (ctxt->interleaves == NULL) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
"Failed to create interleaves hash table\n", NULL,
NULL);
} else {
char tmpname[32];
snprintf(tmpname, 32, "interleave%d", ctxt->nbInterleaves++);
if (xmlHashAddEntry(ctxt->interleaves, BAD_CAST tmpname, cur) <
0) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
"Failed to add %s to hash table\n",
(const xmlChar *) tmpname, NULL);
}
}
}
}
/**
* xmlRelaxNGCheckCycles:
* @ctxt: a Relax-NG parser context
* @nodes: grammar children nodes
* @depth: the counter
*
* Check for cycles.
*
* Returns 0 if check passed, and -1 in case of error
*/
static int
xmlRelaxNGCheckCycles(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr cur, int depth)
{
int ret = 0;
while ((ret == 0) && (cur != NULL)) {
if ((cur->type == XML_RELAXNG_REF) ||
(cur->type == XML_RELAXNG_PARENTREF)) {
if (cur->depth == -1) {
cur->depth = depth;
ret = xmlRelaxNGCheckCycles(ctxt, cur->content, depth);
cur->depth = -2;
} else if (depth == cur->depth) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_REF_CYCLE,
"Detected a cycle in %s references\n",
cur->name, NULL);
return (-1);
}
} else if (cur->type == XML_RELAXNG_ELEMENT) {
ret = xmlRelaxNGCheckCycles(ctxt, cur->content, depth + 1);
} else {
ret = xmlRelaxNGCheckCycles(ctxt, cur->content, depth);
}
cur = cur->next;
}
return (ret);
}
/**
* xmlRelaxNGTryUnlink:
* @ctxt: a Relax-NG parser context
* @cur: the definition to unlink
* @parent: the parent definition
* @prev: the previous sibling definition
*
* Try to unlink a definition. If not possble make it a NOOP
*
* Returns the new prev definition
*/
static xmlRelaxNGDefinePtr
xmlRelaxNGTryUnlink(xmlRelaxNGParserCtxtPtr ctxt ATTRIBUTE_UNUSED,
xmlRelaxNGDefinePtr cur,
xmlRelaxNGDefinePtr parent, xmlRelaxNGDefinePtr prev)
{
if (prev != NULL) {
prev->next = cur->next;
} else {
if (parent != NULL) {
if (parent->content == cur)
parent->content = cur->next;
else if (parent->attrs == cur)
parent->attrs = cur->next;
else if (parent->nameClass == cur)
parent->nameClass = cur->next;
} else {
cur->type = XML_RELAXNG_NOOP;
prev = cur;
}
}
return (prev);
}
/**
* xmlRelaxNGSimplify:
* @ctxt: a Relax-NG parser context
* @nodes: grammar children nodes
*
* Check for simplification of empty and notAllowed
*/
static void
xmlRelaxNGSimplify(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr cur, xmlRelaxNGDefinePtr parent)
{
xmlRelaxNGDefinePtr prev = NULL;
while (cur != NULL) {
if ((cur->type == XML_RELAXNG_REF) ||
(cur->type == XML_RELAXNG_PARENTREF)) {
if (cur->depth != -3) {
cur->depth = -3;
xmlRelaxNGSimplify(ctxt, cur->content, cur);
}
} else if (cur->type == XML_RELAXNG_NOT_ALLOWED) {
cur->parent = parent;
if ((parent != NULL) &&
((parent->type == XML_RELAXNG_ATTRIBUTE) ||
(parent->type == XML_RELAXNG_LIST) ||
(parent->type == XML_RELAXNG_GROUP) ||
(parent->type == XML_RELAXNG_INTERLEAVE) ||
(parent->type == XML_RELAXNG_ONEORMORE) ||
(parent->type == XML_RELAXNG_ZEROORMORE))) {
parent->type = XML_RELAXNG_NOT_ALLOWED;
break;
}
if ((parent != NULL) && (parent->type == XML_RELAXNG_CHOICE)) {
prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
} else
prev = cur;
} else if (cur->type == XML_RELAXNG_EMPTY) {
cur->parent = parent;
if ((parent != NULL) &&
((parent->type == XML_RELAXNG_ONEORMORE) ||
(parent->type == XML_RELAXNG_ZEROORMORE))) {
parent->type = XML_RELAXNG_EMPTY;
break;
}
if ((parent != NULL) &&
((parent->type == XML_RELAXNG_GROUP) ||
(parent->type == XML_RELAXNG_INTERLEAVE))) {
prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
} else
prev = cur;
} else {
cur->parent = parent;
if (cur->content != NULL)
xmlRelaxNGSimplify(ctxt, cur->content, cur);
if ((cur->type != XML_RELAXNG_VALUE) && (cur->attrs != NULL))
xmlRelaxNGSimplify(ctxt, cur->attrs, cur);
if (cur->nameClass != NULL)
xmlRelaxNGSimplify(ctxt, cur->nameClass, cur);
/*
* On Elements, try to move attribute only generating rules on
* the attrs rules.
*/
if (cur->type == XML_RELAXNG_ELEMENT) {
int attronly;
xmlRelaxNGDefinePtr tmp, pre;
while (cur->content != NULL) {
attronly =
xmlRelaxNGGenerateAttributes(ctxt, cur->content);
if (attronly == 1) {
/*
* migrate cur->content to attrs
*/
tmp = cur->content;
cur->content = tmp->next;
tmp->next = cur->attrs;
cur->attrs = tmp;
} else {
/*
* cur->content can generate elements or text
*/
break;
}
}
pre = cur->content;
while ((pre != NULL) && (pre->next != NULL)) {
tmp = pre->next;
attronly = xmlRelaxNGGenerateAttributes(ctxt, tmp);
if (attronly == 1) {
/*
* migrate tmp to attrs
*/
pre->next = tmp->next;
tmp->next = cur->attrs;
cur->attrs = tmp;
} else {
pre = tmp;
}
}
}
/*
* This may result in a simplification
*/
if ((cur->type == XML_RELAXNG_GROUP) ||
(cur->type == XML_RELAXNG_INTERLEAVE)) {
if (cur->content == NULL)
cur->type = XML_RELAXNG_EMPTY;
else if (cur->content->next == NULL) {
if ((parent == NULL) && (prev == NULL)) {
cur->type = XML_RELAXNG_NOOP;
} else if (prev == NULL) {
parent->content = cur->content;
cur->content->next = cur->next;
cur = cur->content;
} else {
cur->content->next = cur->next;
prev->next = cur->content;
cur = cur->content;
}
}
}
/*
* the current node may have been transformed back
*/
if ((cur->type == XML_RELAXNG_EXCEPT) &&
(cur->content != NULL) &&
(cur->content->type == XML_RELAXNG_NOT_ALLOWED)) {
prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
} else if (cur->type == XML_RELAXNG_NOT_ALLOWED) {
if ((parent != NULL) &&
((parent->type == XML_RELAXNG_ATTRIBUTE) ||
(parent->type == XML_RELAXNG_LIST) ||
(parent->type == XML_RELAXNG_GROUP) ||
(parent->type == XML_RELAXNG_INTERLEAVE) ||
(parent->type == XML_RELAXNG_ONEORMORE) ||
(parent->type == XML_RELAXNG_ZEROORMORE))) {
parent->type = XML_RELAXNG_NOT_ALLOWED;
break;
}
if ((parent != NULL) &&
(parent->type == XML_RELAXNG_CHOICE)) {
prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
} else
prev = cur;
} else if (cur->type == XML_RELAXNG_EMPTY) {
if ((parent != NULL) &&
((parent->type == XML_RELAXNG_ONEORMORE) ||
(parent->type == XML_RELAXNG_ZEROORMORE))) {
parent->type = XML_RELAXNG_EMPTY;
break;
}
if ((parent != NULL) &&
((parent->type == XML_RELAXNG_GROUP) ||
(parent->type == XML_RELAXNG_INTERLEAVE) ||
(parent->type == XML_RELAXNG_CHOICE))) {
prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
} else
prev = cur;
} else {
prev = cur;
}
}
cur = cur->next;
}
}
/**
* xmlRelaxNGGroupContentType:
* @ct1: the first content type
* @ct2: the second content type
*
* Try to group 2 content types
*
* Returns the content type
*/
static xmlRelaxNGContentType
xmlRelaxNGGroupContentType(xmlRelaxNGContentType ct1,
xmlRelaxNGContentType ct2)
{
if ((ct1 == XML_RELAXNG_CONTENT_ERROR) ||
(ct2 == XML_RELAXNG_CONTENT_ERROR))
return (XML_RELAXNG_CONTENT_ERROR);
if (ct1 == XML_RELAXNG_CONTENT_EMPTY)
return (ct2);
if (ct2 == XML_RELAXNG_CONTENT_EMPTY)
return (ct1);
if ((ct1 == XML_RELAXNG_CONTENT_COMPLEX) &&
(ct2 == XML_RELAXNG_CONTENT_COMPLEX))
return (XML_RELAXNG_CONTENT_COMPLEX);
return (XML_RELAXNG_CONTENT_ERROR);
}
/**
* xmlRelaxNGMaxContentType:
* @ct1: the first content type
* @ct2: the second content type
*
* Compute the max content-type
*
* Returns the content type
*/
static xmlRelaxNGContentType
xmlRelaxNGMaxContentType(xmlRelaxNGContentType ct1,
xmlRelaxNGContentType ct2)
{
if ((ct1 == XML_RELAXNG_CONTENT_ERROR) ||
(ct2 == XML_RELAXNG_CONTENT_ERROR))
return (XML_RELAXNG_CONTENT_ERROR);
if ((ct1 == XML_RELAXNG_CONTENT_SIMPLE) ||
(ct2 == XML_RELAXNG_CONTENT_SIMPLE))
return (XML_RELAXNG_CONTENT_SIMPLE);
if ((ct1 == XML_RELAXNG_CONTENT_COMPLEX) ||
(ct2 == XML_RELAXNG_CONTENT_COMPLEX))
return (XML_RELAXNG_CONTENT_COMPLEX);
return (XML_RELAXNG_CONTENT_EMPTY);
}
/**
* xmlRelaxNGCheckRules:
* @ctxt: a Relax-NG parser context
* @cur: the current definition
* @flags: some accumulated flags
* @ptype: the parent type
*
* Check for rules in section 7.1 and 7.2
*
* Returns the content type of @cur
*/
static xmlRelaxNGContentType
xmlRelaxNGCheckRules(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGDefinePtr cur, int flags,
xmlRelaxNGType ptype)
{
int nflags = flags;
xmlRelaxNGContentType ret, tmp, val = XML_RELAXNG_CONTENT_EMPTY;
while (cur != NULL) {
ret = XML_RELAXNG_CONTENT_EMPTY;
if ((cur->type == XML_RELAXNG_REF) ||
(cur->type == XML_RELAXNG_PARENTREF)) {
if (flags & XML_RELAXNG_IN_LIST) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_REF,
"Found forbidden pattern list//ref\n", NULL,
NULL);
}
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_REF,
"Found forbidden pattern data/except//ref\n",
NULL, NULL);
}
if (cur->depth > -4) {
cur->depth = -4;
ret = xmlRelaxNGCheckRules(ctxt, cur->content,
flags, cur->type);
cur->depth = ret - 15;
} else if (cur->depth == -4) {
ret = XML_RELAXNG_CONTENT_COMPLEX;
} else {
ret = (xmlRelaxNGContentType) (cur->depth + 15);
}
} else if (cur->type == XML_RELAXNG_ELEMENT) {
/*
* The 7.3 Attribute derivation rule for groups is plugged there
*/
xmlRelaxNGCheckGroupAttrs(ctxt, cur);
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_ELEM,
"Found forbidden pattern data/except//element(ref)\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_LIST) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_ELEM,
"Found forbidden pattern list//element(ref)\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_ATTRIBUTE) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ATTR_ELEM,
"Found forbidden pattern attribute//element(ref)\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_ATTRIBUTE) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ATTR_ELEM,
"Found forbidden pattern attribute//element(ref)\n",
NULL, NULL);
}
/*
* reset since in the simple form elements are only child
* of grammar/define
*/
nflags = 0;
ret =
xmlRelaxNGCheckRules(ctxt, cur->attrs, nflags, cur->type);
if (ret != XML_RELAXNG_CONTENT_EMPTY) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_ELEM_CONTENT_EMPTY,
"Element %s attributes have a content type error\n",
cur->name, NULL);
}
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
cur->type);
if (ret == XML_RELAXNG_CONTENT_ERROR) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_ELEM_CONTENT_ERROR,
"Element %s has a content type error\n",
cur->name, NULL);
} else {
ret = XML_RELAXNG_CONTENT_COMPLEX;
}
} else if (cur->type == XML_RELAXNG_ATTRIBUTE) {
if (flags & XML_RELAXNG_IN_ATTRIBUTE) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ATTR_ATTR,
"Found forbidden pattern attribute//attribute\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_LIST) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_ATTR,
"Found forbidden pattern list//attribute\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_OOMGROUP) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ONEMORE_GROUP_ATTR,
"Found forbidden pattern oneOrMore//group//attribute\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_OOMINTERLEAVE) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ONEMORE_INTERLEAVE_ATTR,
"Found forbidden pattern oneOrMore//interleave//attribute\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_ATTR,
"Found forbidden pattern data/except//attribute\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_ATTR,
"Found forbidden pattern start//attribute\n",
NULL, NULL);
}
if ((!(flags & XML_RELAXNG_IN_ONEORMORE))
&& (cur->name == NULL)) {
if (cur->ns == NULL) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_ANYNAME_ATTR_ANCESTOR,
"Found anyName attribute without oneOrMore ancestor\n",
NULL, NULL);
} else {
xmlRngPErr(ctxt, cur->node, XML_RNGP_NSNAME_ATTR_ANCESTOR,
"Found nsName attribute without oneOrMore ancestor\n",
NULL, NULL);
}
}
nflags = flags | XML_RELAXNG_IN_ATTRIBUTE;
xmlRelaxNGCheckRules(ctxt, cur->content, nflags, cur->type);
ret = XML_RELAXNG_CONTENT_EMPTY;
} else if ((cur->type == XML_RELAXNG_ONEORMORE) ||
(cur->type == XML_RELAXNG_ZEROORMORE)) {
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_ONEMORE,
"Found forbidden pattern data/except//oneOrMore\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_ONEMORE,
"Found forbidden pattern start//oneOrMore\n",
NULL, NULL);
}
nflags = flags | XML_RELAXNG_IN_ONEORMORE;
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
cur->type);
ret = xmlRelaxNGGroupContentType(ret, ret);
} else if (cur->type == XML_RELAXNG_LIST) {
if (flags & XML_RELAXNG_IN_LIST) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_LIST,
"Found forbidden pattern list//list\n", NULL,
NULL);
}
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_LIST,
"Found forbidden pattern data/except//list\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_LIST,
"Found forbidden pattern start//list\n", NULL,
NULL);
}
nflags = flags | XML_RELAXNG_IN_LIST;
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
cur->type);
} else if (cur->type == XML_RELAXNG_GROUP) {
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_GROUP,
"Found forbidden pattern data/except//group\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_GROUP,
"Found forbidden pattern start//group\n", NULL,
NULL);
}
if (flags & XML_RELAXNG_IN_ONEORMORE)
nflags = flags | XML_RELAXNG_IN_OOMGROUP;
else
nflags = flags;
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
cur->type);
/*
* The 7.3 Attribute derivation rule for groups is plugged there
*/
xmlRelaxNGCheckGroupAttrs(ctxt, cur);
} else if (cur->type == XML_RELAXNG_INTERLEAVE) {
if (flags & XML_RELAXNG_IN_LIST) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_INTERLEAVE,
"Found forbidden pattern list//interleave\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_INTERLEAVE,
"Found forbidden pattern data/except//interleave\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_INTERLEAVE,
"Found forbidden pattern start//interleave\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_ONEORMORE)
nflags = flags | XML_RELAXNG_IN_OOMINTERLEAVE;
else
nflags = flags;
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
cur->type);
} else if (cur->type == XML_RELAXNG_EXCEPT) {
if ((cur->parent != NULL) &&
(cur->parent->type == XML_RELAXNG_DATATYPE))
nflags = flags | XML_RELAXNG_IN_DATAEXCEPT;
else
nflags = flags;
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
cur->type);
} else if (cur->type == XML_RELAXNG_DATATYPE) {
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_DATA,
"Found forbidden pattern start//data\n", NULL,
NULL);
}
xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
ret = XML_RELAXNG_CONTENT_SIMPLE;
} else if (cur->type == XML_RELAXNG_VALUE) {
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_VALUE,
"Found forbidden pattern start//value\n", NULL,
NULL);
}
xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
ret = XML_RELAXNG_CONTENT_SIMPLE;
} else if (cur->type == XML_RELAXNG_TEXT) {
if (flags & XML_RELAXNG_IN_LIST) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_TEXT,
"Found forbidden pattern list//text\n", NULL,
NULL);
}
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_TEXT,
"Found forbidden pattern data/except//text\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_TEXT,
"Found forbidden pattern start//text\n", NULL,
NULL);
}
ret = XML_RELAXNG_CONTENT_COMPLEX;
} else if (cur->type == XML_RELAXNG_EMPTY) {
if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_EMPTY,
"Found forbidden pattern data/except//empty\n",
NULL, NULL);
}
if (flags & XML_RELAXNG_IN_START) {
xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_EMPTY,
"Found forbidden pattern start//empty\n", NULL,
NULL);
}
ret = XML_RELAXNG_CONTENT_EMPTY;
} else if (cur->type == XML_RELAXNG_CHOICE) {
xmlRelaxNGCheckChoiceDeterminism(ctxt, cur);
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
} else {
ret =
xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
}
cur = cur->next;
if (ptype == XML_RELAXNG_GROUP) {
val = xmlRelaxNGGroupContentType(val, ret);
} else if (ptype == XML_RELAXNG_INTERLEAVE) {
tmp = xmlRelaxNGGroupContentType(val, ret);
if (tmp != XML_RELAXNG_CONTENT_ERROR)
tmp = xmlRelaxNGMaxContentType(val, ret);
} else if (ptype == XML_RELAXNG_CHOICE) {
val = xmlRelaxNGMaxContentType(val, ret);
} else if (ptype == XML_RELAXNG_LIST) {
val = XML_RELAXNG_CONTENT_SIMPLE;
} else if (ptype == XML_RELAXNG_EXCEPT) {
if (ret == XML_RELAXNG_CONTENT_ERROR)
val = XML_RELAXNG_CONTENT_ERROR;
else
val = XML_RELAXNG_CONTENT_SIMPLE;
} else {
val = xmlRelaxNGGroupContentType(val, ret);
}
}
return (val);
}
/**
* xmlRelaxNGParseGrammar:
* @ctxt: a Relax-NG parser context
* @nodes: grammar children nodes
*
* parse a Relax-NG <grammar> node
*
* Returns the internal xmlRelaxNGGrammarPtr built or
* NULL in case of error
*/
static xmlRelaxNGGrammarPtr
xmlRelaxNGParseGrammar(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr nodes)
{
xmlRelaxNGGrammarPtr ret, tmp, old;
#ifdef DEBUG_GRAMMAR
xmlGenericError(xmlGenericErrorContext, "Parsing a new grammar\n");
#endif
ret = xmlRelaxNGNewGrammar(ctxt);
if (ret == NULL)
return (NULL);
/*
* Link the new grammar in the tree
*/
ret->parent = ctxt->grammar;
if (ctxt->grammar != NULL) {
tmp = ctxt->grammar->children;
if (tmp == NULL) {
ctxt->grammar->children = ret;
} else {
while (tmp->next != NULL)
tmp = tmp->next;
tmp->next = ret;
}
}
old = ctxt->grammar;
ctxt->grammar = ret;
xmlRelaxNGParseGrammarContent(ctxt, nodes);
ctxt->grammar = ret;
if (ctxt->grammar == NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_CONTENT,
"Failed to parse <grammar> content\n", NULL, NULL);
} else if (ctxt->grammar->start == NULL) {
xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_NO_START,
"Element <grammar> has no <start>\n", NULL, NULL);
}
/*
* Apply 4.17 mergingd rules to defines and starts
*/
xmlRelaxNGCombineStart(ctxt, ret);
if (ret->defs != NULL) {
xmlHashScan(ret->defs, (xmlHashScanner) xmlRelaxNGCheckCombine,
ctxt);
}
/*
* link together defines and refs in this grammar
*/
if (ret->refs != NULL) {
xmlHashScan(ret->refs, (xmlHashScanner) xmlRelaxNGCheckReference,
ctxt);
}
ctxt->grammar = old;
return (ret);
}
/**
* xmlRelaxNGParseDocument:
* @ctxt: a Relax-NG parser context
* @node: the root node of the RelaxNG schema
*
* parse a Relax-NG definition resource and build an internal
* xmlRelaxNG struture which can be used to validate instances.
*
* Returns the internal XML RelaxNG structure built or
* NULL in case of error
*/
static xmlRelaxNGPtr
xmlRelaxNGParseDocument(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlRelaxNGPtr schema = NULL;
const xmlChar *olddefine;
xmlRelaxNGGrammarPtr old;
if ((ctxt == NULL) || (node == NULL))
return (NULL);
schema = xmlRelaxNGNewRelaxNG(ctxt);
if (schema == NULL)
return (NULL);
olddefine = ctxt->define;
ctxt->define = NULL;
if (IS_RELAXNG(node, "grammar")) {
schema->topgrammar = xmlRelaxNGParseGrammar(ctxt, node->children);
} else {
xmlRelaxNGGrammarPtr tmp, ret;
schema->topgrammar = ret = xmlRelaxNGNewGrammar(ctxt);
if (schema->topgrammar == NULL) {
return (schema);
}
/*
* Link the new grammar in the tree
*/
ret->parent = ctxt->grammar;
if (ctxt->grammar != NULL) {
tmp = ctxt->grammar->children;
if (tmp == NULL) {
ctxt->grammar->children = ret;
} else {
while (tmp->next != NULL)
tmp = tmp->next;
tmp->next = ret;
}
}
old = ctxt->grammar;
ctxt->grammar = ret;
xmlRelaxNGParseStart(ctxt, node);
if (old != NULL)
ctxt->grammar = old;
}
ctxt->define = olddefine;
if (schema->topgrammar->start != NULL) {
xmlRelaxNGCheckCycles(ctxt, schema->topgrammar->start, 0);
if ((ctxt->flags & XML_RELAXNG_IN_EXTERNALREF) == 0) {
xmlRelaxNGSimplify(ctxt, schema->topgrammar->start, NULL);
while ((schema->topgrammar->start != NULL) &&
(schema->topgrammar->start->type == XML_RELAXNG_NOOP) &&
(schema->topgrammar->start->next != NULL))
schema->topgrammar->start =
schema->topgrammar->start->content;
xmlRelaxNGCheckRules(ctxt, schema->topgrammar->start,
XML_RELAXNG_IN_START, XML_RELAXNG_NOOP);
}
}
#ifdef DEBUG
if (schema == NULL)
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGParseDocument() failed\n");
#endif
return (schema);
}
/************************************************************************
* *
* Reading RelaxNGs *
* *
************************************************************************/
/**
* xmlRelaxNGNewParserCtxt:
* @URL: the location of the schema
*
* Create an XML RelaxNGs parse context for that file/resource expected
* to contain an XML RelaxNGs file.
*
* Returns the parser context or NULL in case of error
*/
xmlRelaxNGParserCtxtPtr
xmlRelaxNGNewParserCtxt(const char *URL)
{
xmlRelaxNGParserCtxtPtr ret;
if (URL == NULL)
return (NULL);
ret =
(xmlRelaxNGParserCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGParserCtxt));
if (ret == NULL) {
xmlRngPErrMemory(NULL, "building parser\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGParserCtxt));
ret->URL = xmlStrdup((const xmlChar *) URL);
ret->error = xmlGenericError;
ret->userData = xmlGenericErrorContext;
return (ret);
}
/**
* xmlRelaxNGNewMemParserCtxt:
* @buffer: a pointer to a char array containing the schemas
* @size: the size of the array
*
* Create an XML RelaxNGs parse context for that memory buffer expected
* to contain an XML RelaxNGs file.
*
* Returns the parser context or NULL in case of error
*/
xmlRelaxNGParserCtxtPtr
xmlRelaxNGNewMemParserCtxt(const char *buffer, int size)
{
xmlRelaxNGParserCtxtPtr ret;
if ((buffer == NULL) || (size <= 0))
return (NULL);
ret =
(xmlRelaxNGParserCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGParserCtxt));
if (ret == NULL) {
xmlRngPErrMemory(NULL, "building parser\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGParserCtxt));
ret->buffer = buffer;
ret->size = size;
ret->error = xmlGenericError;
ret->userData = xmlGenericErrorContext;
return (ret);
}
/**
* xmlRelaxNGNewDocParserCtxt:
* @doc: a preparsed document tree
*
* Create an XML RelaxNGs parser context for that document.
* Note: since the process of compiling a RelaxNG schemas modifies the
* document, the @doc parameter is duplicated internally.
*
* Returns the parser context or NULL in case of error
*/
xmlRelaxNGParserCtxtPtr
xmlRelaxNGNewDocParserCtxt(xmlDocPtr doc)
{
xmlRelaxNGParserCtxtPtr ret;
xmlDocPtr copy;
if (doc == NULL)
return (NULL);
copy = xmlCopyDoc(doc, 1);
if (copy == NULL)
return (NULL);
ret =
(xmlRelaxNGParserCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGParserCtxt));
if (ret == NULL) {
xmlRngPErrMemory(NULL, "building parser\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGParserCtxt));
ret->document = copy;
ret->userData = xmlGenericErrorContext;
return (ret);
}
/**
* xmlRelaxNGFreeParserCtxt:
* @ctxt: the schema parser context
*
* Free the resources associated to the schema parser context
*/
void
xmlRelaxNGFreeParserCtxt(xmlRelaxNGParserCtxtPtr ctxt)
{
if (ctxt == NULL)
return;
if (ctxt->URL != NULL)
xmlFree(ctxt->URL);
if (ctxt->doc != NULL)
xmlRelaxNGFreeDocument(ctxt->doc);
if (ctxt->interleaves != NULL)
xmlHashFree(ctxt->interleaves, NULL);
if (ctxt->documents != NULL)
xmlRelaxNGFreeDocumentList(ctxt->documents);
if (ctxt->includes != NULL)
xmlRelaxNGFreeIncludeList(ctxt->includes);
if (ctxt->docTab != NULL)
xmlFree(ctxt->docTab);
if (ctxt->incTab != NULL)
xmlFree(ctxt->incTab);
if (ctxt->defTab != NULL) {
int i;
for (i = 0; i < ctxt->defNr; i++)
xmlRelaxNGFreeDefine(ctxt->defTab[i]);
xmlFree(ctxt->defTab);
}
xmlFree(ctxt);
}
/**
* xmlRelaxNGNormExtSpace:
* @value: a value
*
* Removes the leading and ending spaces of the value
* The string is modified "in situ"
*/
static void
xmlRelaxNGNormExtSpace(xmlChar * value)
{
xmlChar *start = value;
xmlChar *cur = value;
if (value == NULL)
return;
while (IS_BLANK_CH(*cur))
cur++;
if (cur == start) {
do {
while ((*cur != 0) && (!IS_BLANK_CH(*cur)))
cur++;
if (*cur == 0)
return;
start = cur;
while (IS_BLANK_CH(*cur))
cur++;
if (*cur == 0) {
*start = 0;
return;
}
} while (1);
} else {
do {
while ((*cur != 0) && (!IS_BLANK_CH(*cur)))
*start++ = *cur++;
if (*cur == 0) {
*start = 0;
return;
}
/* don't try to normalize the inner spaces */
while (IS_BLANK_CH(*cur))
cur++;
if (*cur == 0) {
*start = 0;
return;
}
*start++ = *cur++;
} while (1);
}
}
/**
* xmlRelaxNGCleanupAttributes:
* @ctxt: a Relax-NG parser context
* @node: a Relax-NG node
*
* Check all the attributes on the given node
*/
static void
xmlRelaxNGCleanupAttributes(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlAttrPtr cur, next;
cur = node->properties;
while (cur != NULL) {
next = cur->next;
if ((cur->ns == NULL) ||
(xmlStrEqual(cur->ns->href, xmlRelaxNGNs))) {
if (xmlStrEqual(cur->name, BAD_CAST "name")) {
if ((!xmlStrEqual(node->name, BAD_CAST "element")) &&
(!xmlStrEqual(node->name, BAD_CAST "attribute")) &&
(!xmlStrEqual(node->name, BAD_CAST "ref")) &&
(!xmlStrEqual(node->name, BAD_CAST "parentRef")) &&
(!xmlStrEqual(node->name, BAD_CAST "param")) &&
(!xmlStrEqual(node->name, BAD_CAST "define"))) {
xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
"Attribute %s is not allowed on %s\n",
cur->name, node->name);
}
} else if (xmlStrEqual(cur->name, BAD_CAST "type")) {
if ((!xmlStrEqual(node->name, BAD_CAST "value")) &&
(!xmlStrEqual(node->name, BAD_CAST "data"))) {
xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
"Attribute %s is not allowed on %s\n",
cur->name, node->name);
}
} else if (xmlStrEqual(cur->name, BAD_CAST "href")) {
if ((!xmlStrEqual(node->name, BAD_CAST "externalRef")) &&
(!xmlStrEqual(node->name, BAD_CAST "include"))) {
xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
"Attribute %s is not allowed on %s\n",
cur->name, node->name);
}
} else if (xmlStrEqual(cur->name, BAD_CAST "combine")) {
if ((!xmlStrEqual(node->name, BAD_CAST "start")) &&
(!xmlStrEqual(node->name, BAD_CAST "define"))) {
xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
"Attribute %s is not allowed on %s\n",
cur->name, node->name);
}
} else if (xmlStrEqual(cur->name, BAD_CAST "datatypeLibrary")) {
xmlChar *val;
xmlURIPtr uri;
val = xmlNodeListGetString(node->doc, cur->children, 1);
if (val != NULL) {
if (val[0] != 0) {
uri = xmlParseURI((const char *) val);
if (uri == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_INVALID_URI,
"Attribute %s contains invalid URI %s\n",
cur->name, val);
} else {
if (uri->scheme == NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_URI_NOT_ABSOLUTE,
"Attribute %s URI %s is not absolute\n",
cur->name, val);
}
if (uri->fragment != NULL) {
xmlRngPErr(ctxt, node, XML_RNGP_URI_FRAGMENT,
"Attribute %s URI %s has a fragment ID\n",
cur->name, val);
}
xmlFreeURI(uri);
}
}
xmlFree(val);
}
} else if (!xmlStrEqual(cur->name, BAD_CAST "ns")) {
xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_ATTRIBUTE,
"Unknown attribute %s on %s\n", cur->name,
node->name);
}
}
cur = next;
}
}
/**
* xmlRelaxNGCleanupTree:
* @ctxt: a Relax-NG parser context
* @root: an xmlNodePtr subtree
*
* Cleanup the subtree from unwanted nodes for parsing, resolve
* Include and externalRef lookups.
*/
static void
xmlRelaxNGCleanupTree(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr root)
{
xmlNodePtr cur, delete;
delete = NULL;
cur = root;
while (cur != NULL) {
if (delete != NULL) {
xmlUnlinkNode(delete);
xmlFreeNode(delete);
delete = NULL;
}
if (cur->type == XML_ELEMENT_NODE) {
/*
* Simplification 4.1. Annotations
*/
if ((cur->ns == NULL) ||
(!xmlStrEqual(cur->ns->href, xmlRelaxNGNs))) {
if ((cur->parent != NULL) &&
(cur->parent->type == XML_ELEMENT_NODE) &&
((xmlStrEqual(cur->parent->name, BAD_CAST "name")) ||
(xmlStrEqual(cur->parent->name, BAD_CAST "value")) ||
(xmlStrEqual(cur->parent->name, BAD_CAST "param")))) {
xmlRngPErr(ctxt, cur, XML_RNGP_FOREIGN_ELEMENT,
"element %s doesn't allow foreign elements\n",
cur->parent->name, NULL);
}
delete = cur;
goto skip_children;
} else {
xmlRelaxNGCleanupAttributes(ctxt, cur);
if (xmlStrEqual(cur->name, BAD_CAST "externalRef")) {
xmlChar *href, *ns, *base, *URL;
xmlRelaxNGDocumentPtr docu;
xmlNodePtr tmp;
xmlURIPtr uri;
ns = xmlGetProp(cur, BAD_CAST "ns");
if (ns == NULL) {
tmp = cur->parent;
while ((tmp != NULL) &&
(tmp->type == XML_ELEMENT_NODE)) {
ns = xmlGetProp(tmp, BAD_CAST "ns");
if (ns != NULL)
break;
tmp = tmp->parent;
}
}
href = xmlGetProp(cur, BAD_CAST "href");
if (href == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_MISSING_HREF,
"xmlRelaxNGParse: externalRef has no href attribute\n",
NULL, NULL);
delete = cur;
goto skip_children;
}
uri = xmlParseURI((const char *) href);
if (uri == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
"Incorrect URI for externalRef %s\n",
href, NULL);
if (href != NULL)
xmlFree(href);
delete = cur;
goto skip_children;
}
if (uri->fragment != NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
"Fragment forbidden in URI for externalRef %s\n",
href, NULL);
xmlFreeURI(uri);
if (href != NULL)
xmlFree(href);
delete = cur;
goto skip_children;
}
xmlFreeURI(uri);
base = xmlNodeGetBase(cur->doc, cur);
URL = xmlBuildURI(href, base);
if (URL == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
"Failed to compute URL for externalRef %s\n",
href, NULL);
if (href != NULL)
xmlFree(href);
if (base != NULL)
xmlFree(base);
delete = cur;
goto skip_children;
}
if (href != NULL)
xmlFree(href);
if (base != NULL)
xmlFree(base);
docu = xmlRelaxNGLoadExternalRef(ctxt, URL, ns);
if (docu == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_EXTERNAL_REF_FAILURE,
"Failed to load externalRef %s\n", URL,
NULL);
xmlFree(URL);
delete = cur;
goto skip_children;
}
if (ns != NULL)
xmlFree(ns);
xmlFree(URL);
cur->psvi = docu;
} else if (xmlStrEqual(cur->name, BAD_CAST "include")) {
xmlChar *href, *ns, *base, *URL;
xmlRelaxNGIncludePtr incl;
xmlNodePtr tmp;
href = xmlGetProp(cur, BAD_CAST "href");
if (href == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_MISSING_HREF,
"xmlRelaxNGParse: include has no href attribute\n",
NULL, NULL);
delete = cur;
goto skip_children;
}
base = xmlNodeGetBase(cur->doc, cur);
URL = xmlBuildURI(href, base);
if (URL == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
"Failed to compute URL for include %s\n",
href, NULL);
if (href != NULL)
xmlFree(href);
if (base != NULL)
xmlFree(base);
delete = cur;
goto skip_children;
}
if (href != NULL)
xmlFree(href);
if (base != NULL)
xmlFree(base);
ns = xmlGetProp(cur, BAD_CAST "ns");
if (ns == NULL) {
tmp = cur->parent;
while ((tmp != NULL) &&
(tmp->type == XML_ELEMENT_NODE)) {
ns = xmlGetProp(tmp, BAD_CAST "ns");
if (ns != NULL)
break;
tmp = tmp->parent;
}
}
incl = xmlRelaxNGLoadInclude(ctxt, URL, cur, ns);
if (ns != NULL)
xmlFree(ns);
if (incl == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_INCLUDE_FAILURE,
"Failed to load include %s\n", URL,
NULL);
xmlFree(URL);
delete = cur;
goto skip_children;
}
xmlFree(URL);
cur->psvi = incl;
} else if ((xmlStrEqual(cur->name, BAD_CAST "element")) ||
(xmlStrEqual(cur->name, BAD_CAST "attribute")))
{
xmlChar *name, *ns;
xmlNodePtr text = NULL;
/*
* Simplification 4.8. name attribute of element
* and attribute elements
*/
name = xmlGetProp(cur, BAD_CAST "name");
if (name != NULL) {
if (cur->children == NULL) {
text =
xmlNewChild(cur, cur->ns, BAD_CAST "name",
name);
} else {
xmlNodePtr node;
node = xmlNewDocNode(cur->doc, cur->ns,
BAD_CAST "name", NULL);
if (node != NULL) {
xmlAddPrevSibling(cur->children, node);
text = xmlNewText(name);
xmlAddChild(node, text);
text = node;
}
}
if (text == NULL) {
xmlRngPErr(ctxt, cur, XML_RNGP_CREATE_FAILURE,
"Failed to create a name %s element\n",
name, NULL);
}
xmlUnsetProp(cur, BAD_CAST "name");
xmlFree(name);
ns = xmlGetProp(cur, BAD_CAST "ns");
if (ns != NULL) {
if (text != NULL) {
xmlSetProp(text, BAD_CAST "ns", ns);
/* xmlUnsetProp(cur, BAD_CAST "ns"); */
}
xmlFree(ns);
} else if (xmlStrEqual(cur->name,
BAD_CAST "attribute")) {
xmlSetProp(text, BAD_CAST "ns", BAD_CAST "");
}
}
} else if ((xmlStrEqual(cur->name, BAD_CAST "name")) ||
(xmlStrEqual(cur->name, BAD_CAST "nsName")) ||
(xmlStrEqual(cur->name, BAD_CAST "value"))) {
/*
* Simplification 4.8. name attribute of element
* and attribute elements
*/
if (xmlHasProp(cur, BAD_CAST "ns") == NULL) {
xmlNodePtr node;
xmlChar *ns = NULL;
node = cur->parent;
while ((node != NULL) &&
(node->type == XML_ELEMENT_NODE)) {
ns = xmlGetProp(node, BAD_CAST "ns");
if (ns != NULL) {
break;
}
node = node->parent;
}
if (ns == NULL) {
xmlSetProp(cur, BAD_CAST "ns", BAD_CAST "");
} else {
xmlSetProp(cur, BAD_CAST "ns", ns);
xmlFree(ns);
}
}
if (xmlStrEqual(cur->name, BAD_CAST "name")) {
xmlChar *name, *local, *prefix;
/*
* Simplification: 4.10. QNames
*/
name = xmlNodeGetContent(cur);
if (name != NULL) {
local = xmlSplitQName2(name, &prefix);
if (local != NULL) {
xmlNsPtr ns;
ns = xmlSearchNs(cur->doc, cur, prefix);
if (ns == NULL) {
xmlRngPErr(ctxt, cur,
XML_RNGP_PREFIX_UNDEFINED,
"xmlRelaxNGParse: no namespace for prefix %s\n",
prefix, NULL);
} else {
xmlSetProp(cur, BAD_CAST "ns",
ns->href);
xmlNodeSetContent(cur, local);
}
xmlFree(local);
xmlFree(prefix);
}
xmlFree(name);
}
}
/*
* 4.16
*/
if (xmlStrEqual(cur->name, BAD_CAST "nsName")) {
if (ctxt->flags & XML_RELAXNG_IN_NSEXCEPT) {
xmlRngPErr(ctxt, cur,
XML_RNGP_PAT_NSNAME_EXCEPT_NSNAME,
"Found nsName/except//nsName forbidden construct\n",
NULL, NULL);
}
}
} else if ((xmlStrEqual(cur->name, BAD_CAST "except")) &&
(cur != root)) {
int oldflags = ctxt->flags;
/*
* 4.16
*/
if ((cur->parent != NULL) &&
(xmlStrEqual
(cur->parent->name, BAD_CAST "anyName"))) {
ctxt->flags |= XML_RELAXNG_IN_ANYEXCEPT;
xmlRelaxNGCleanupTree(ctxt, cur);
ctxt->flags = oldflags;
goto skip_children;
} else if ((cur->parent != NULL) &&
(xmlStrEqual
(cur->parent->name, BAD_CAST "nsName"))) {
ctxt->flags |= XML_RELAXNG_IN_NSEXCEPT;
xmlRelaxNGCleanupTree(ctxt, cur);
ctxt->flags = oldflags;
goto skip_children;
}
} else if (xmlStrEqual(cur->name, BAD_CAST "anyName")) {
/*
* 4.16
*/
if (ctxt->flags & XML_RELAXNG_IN_ANYEXCEPT) {
xmlRngPErr(ctxt, cur,
XML_RNGP_PAT_ANYNAME_EXCEPT_ANYNAME,
"Found anyName/except//anyName forbidden construct\n",
NULL, NULL);
} else if (ctxt->flags & XML_RELAXNG_IN_NSEXCEPT) {
xmlRngPErr(ctxt, cur,
XML_RNGP_PAT_NSNAME_EXCEPT_ANYNAME,
"Found nsName/except//anyName forbidden construct\n",
NULL, NULL);
}
}
/*
* Thisd is not an else since "include" is transformed
* into a div
*/
if (xmlStrEqual(cur->name, BAD_CAST "div")) {
xmlChar *ns;
xmlNodePtr child, ins, tmp;
/*
* implements rule 4.11
*/
ns = xmlGetProp(cur, BAD_CAST "ns");
child = cur->children;
ins = cur;
while (child != NULL) {
if (ns != NULL) {
if (!xmlHasProp(child, BAD_CAST "ns")) {
xmlSetProp(child, BAD_CAST "ns", ns);
}
}
tmp = child->next;
xmlUnlinkNode(child);
ins = xmlAddNextSibling(ins, child);
child = tmp;
}
if (ns != NULL)
xmlFree(ns);
/*
* Since we are about to delete cur, if it's nsDef is non-NULL we
* need to preserve it (it contains the ns definitions for the
* children we just moved). We'll just stick it on to the end
* of cur->parent's list, since it's never going to be re-serialized
* (bug 143738).
*/
if (cur->nsDef != NULL) {
xmlNsPtr parDef = (xmlNsPtr)&cur->parent->nsDef;
while (parDef->next != NULL)
parDef = parDef->next;
parDef->next = cur->nsDef;
cur->nsDef = NULL;
}
delete = cur;
goto skip_children;
}
}
}
/*
* Simplification 4.2 whitespaces
*/
else if ((cur->type == XML_TEXT_NODE) ||
(cur->type == XML_CDATA_SECTION_NODE)) {
if (IS_BLANK_NODE(cur)) {
if (cur->parent->type == XML_ELEMENT_NODE) {
if ((!xmlStrEqual(cur->parent->name, BAD_CAST "value"))
&&
(!xmlStrEqual
(cur->parent->name, BAD_CAST "param")))
delete = cur;
} else {
delete = cur;
goto skip_children;
}
}
} else {
delete = cur;
goto skip_children;
}
/*
* Skip to next node
*/
if (cur->children != NULL) {
if ((cur->children->type != XML_ENTITY_DECL) &&
(cur->children->type != XML_ENTITY_REF_NODE) &&
(cur->children->type != XML_ENTITY_NODE)) {
cur = cur->children;
continue;
}
}
skip_children:
if (cur->next != NULL) {
cur = cur->next;
continue;
}
do {
cur = cur->parent;
if (cur == NULL)
break;
if (cur == root) {
cur = NULL;
break;
}
if (cur->next != NULL) {
cur = cur->next;
break;
}
} while (cur != NULL);
}
if (delete != NULL) {
xmlUnlinkNode(delete);
xmlFreeNode(delete);
delete = NULL;
}
}
/**
* xmlRelaxNGCleanupDoc:
* @ctxt: a Relax-NG parser context
* @doc: an xmldocPtr document pointer
*
* Cleanup the document from unwanted nodes for parsing, resolve
* Include and externalRef lookups.
*
* Returns the cleaned up document or NULL in case of error
*/
static xmlDocPtr
xmlRelaxNGCleanupDoc(xmlRelaxNGParserCtxtPtr ctxt, xmlDocPtr doc)
{
xmlNodePtr root;
/*
* Extract the root
*/
root = xmlDocGetRootElement(doc);
if (root == NULL) {
xmlRngPErr(ctxt, (xmlNodePtr) doc, XML_RNGP_EMPTY, "xmlRelaxNGParse: %s is empty\n",
ctxt->URL, NULL);
return (NULL);
}
xmlRelaxNGCleanupTree(ctxt, root);
return (doc);
}
/**
* xmlRelaxNGParse:
* @ctxt: a Relax-NG parser context
*
* parse a schema definition resource and build an internal
* XML Shema struture which can be used to validate instances.
* *WARNING* this interface is highly subject to change
*
* Returns the internal XML RelaxNG structure built from the resource or
* NULL in case of error
*/
xmlRelaxNGPtr
xmlRelaxNGParse(xmlRelaxNGParserCtxtPtr ctxt)
{
xmlRelaxNGPtr ret = NULL;
xmlDocPtr doc;
xmlNodePtr root;
xmlRelaxNGInitTypes();
if (ctxt == NULL)
return (NULL);
/*
* First step is to parse the input document into an DOM/Infoset
*/
if (ctxt->URL != NULL) {
doc = xmlReadFile((const char *) ctxt->URL,NULL,0);
if (doc == NULL) {
xmlRngPErr(ctxt, NULL, XML_RNGP_PARSE_ERROR,
"xmlRelaxNGParse: could not load %s\n", ctxt->URL,
NULL);
return (NULL);
}
} else if (ctxt->buffer != NULL) {
doc = xmlReadMemory(ctxt->buffer, ctxt->size,NULL,NULL,0);
if (doc == NULL) {
xmlRngPErr(ctxt, NULL, XML_RNGP_PARSE_ERROR,
"xmlRelaxNGParse: could not parse schemas\n", NULL,
NULL);
return (NULL);
}
doc->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
ctxt->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
} else if (ctxt->document != NULL) {
doc = ctxt->document;
} else {
xmlRngPErr(ctxt, NULL, XML_RNGP_EMPTY,
"xmlRelaxNGParse: nothing to parse\n", NULL, NULL);
return (NULL);
}
ctxt->document = doc;
/*
* Some preprocessing of the document content
*/
doc = xmlRelaxNGCleanupDoc(ctxt, doc);
if (doc == NULL) {
xmlFreeDoc(ctxt->document);
ctxt->document = NULL;
return (NULL);
}
/*
* Then do the parsing for good
*/
root = xmlDocGetRootElement(doc);
if (root == NULL) {
xmlRngPErr(ctxt, (xmlNodePtr) doc,
XML_RNGP_EMPTY, "xmlRelaxNGParse: %s is empty\n",
ctxt->URL, NULL);
xmlFreeDoc(doc);
return (NULL);
}
ret = xmlRelaxNGParseDocument(ctxt, root);
if (ret == NULL) {
xmlFreeDoc(doc);
return (NULL);
}
/*
* Check the ref/defines links
*/
/*
* try to preprocess interleaves
*/
if (ctxt->interleaves != NULL) {
xmlHashScan(ctxt->interleaves,
(xmlHashScanner) xmlRelaxNGComputeInterleaves, ctxt);
}
/*
* if there was a parsing error return NULL
*/
if (ctxt->nbErrors > 0) {
xmlRelaxNGFree(ret);
ctxt->document = NULL;
xmlFreeDoc(doc);
return (NULL);
}
/*
* try to compile (parts of) the schemas
*/
if ((ret->topgrammar != NULL) && (ret->topgrammar->start != NULL)) {
if (ret->topgrammar->start->type != XML_RELAXNG_START) {
xmlRelaxNGDefinePtr def;
def = xmlRelaxNGNewDefine(ctxt, NULL);
if (def != NULL) {
def->type = XML_RELAXNG_START;
def->content = ret->topgrammar->start;
ret->topgrammar->start = def;
}
}
xmlRelaxNGTryCompile(ctxt, ret->topgrammar->start);
}
/*
* Transfer the pointer for cleanup at the schema level.
*/
ret->doc = doc;
ctxt->document = NULL;
ret->documents = ctxt->documents;
ctxt->documents = NULL;
ret->includes = ctxt->includes;
ctxt->includes = NULL;
ret->defNr = ctxt->defNr;
ret->defTab = ctxt->defTab;
ctxt->defTab = NULL;
if (ctxt->idref == 1)
ret->idref = 1;
return (ret);
}
/**
* xmlRelaxNGSetParserErrors:
* @ctxt: a Relax-NG validation context
* @err: the error callback
* @warn: the warning callback
* @ctx: contextual data for the callbacks
*
* Set the callback functions used to handle errors for a validation context
*/
void
xmlRelaxNGSetParserErrors(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGValidityErrorFunc err,
xmlRelaxNGValidityWarningFunc warn, void *ctx)
{
if (ctxt == NULL)
return;
ctxt->error = err;
ctxt->warning = warn;
ctxt->userData = ctx;
}
/**
* xmlRelaxNGGetParserErrors:
* @ctxt: a Relax-NG validation context
* @err: the error callback result
* @warn: the warning callback result
* @ctx: contextual data for the callbacks result
*
* Get the callback information used to handle errors for a validation context
*
* Returns -1 in case of failure, 0 otherwise.
*/
int
xmlRelaxNGGetParserErrors(xmlRelaxNGParserCtxtPtr ctxt,
xmlRelaxNGValidityErrorFunc * err,
xmlRelaxNGValidityWarningFunc * warn, void **ctx)
{
if (ctxt == NULL)
return (-1);
if (err != NULL)
*err = ctxt->error;
if (warn != NULL)
*warn = ctxt->warning;
if (ctx != NULL)
*ctx = ctxt->userData;
return (0);
}
#ifdef LIBXML_OUTPUT_ENABLED
/************************************************************************
* *
* Dump back a compiled form *
* *
************************************************************************/
static void xmlRelaxNGDumpDefine(FILE * output,
xmlRelaxNGDefinePtr define);
/**
* xmlRelaxNGDumpDefines:
* @output: the file output
* @defines: a list of define structures
*
* Dump a RelaxNG structure back
*/
static void
xmlRelaxNGDumpDefines(FILE * output, xmlRelaxNGDefinePtr defines)
{
while (defines != NULL) {
xmlRelaxNGDumpDefine(output, defines);
defines = defines->next;
}
}
/**
* xmlRelaxNGDumpDefine:
* @output: the file output
* @define: a define structure
*
* Dump a RelaxNG structure back
*/
static void
xmlRelaxNGDumpDefine(FILE * output, xmlRelaxNGDefinePtr define)
{
if (define == NULL)
return;
switch (define->type) {
case XML_RELAXNG_EMPTY:
fprintf(output, "<empty/>\n");
break;
case XML_RELAXNG_NOT_ALLOWED:
fprintf(output, "<notAllowed/>\n");
break;
case XML_RELAXNG_TEXT:
fprintf(output, "<text/>\n");
break;
case XML_RELAXNG_ELEMENT:
fprintf(output, "<element>\n");
if (define->name != NULL) {
fprintf(output, "<name");
if (define->ns != NULL)
fprintf(output, " ns=\"%s\"", define->ns);
fprintf(output, ">%s</name>\n", define->name);
}
xmlRelaxNGDumpDefines(output, define->attrs);
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</element>\n");
break;
case XML_RELAXNG_LIST:
fprintf(output, "<list>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</list>\n");
break;
case XML_RELAXNG_ONEORMORE:
fprintf(output, "<oneOrMore>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</oneOrMore>\n");
break;
case XML_RELAXNG_ZEROORMORE:
fprintf(output, "<zeroOrMore>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</zeroOrMore>\n");
break;
case XML_RELAXNG_CHOICE:
fprintf(output, "<choice>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</choice>\n");
break;
case XML_RELAXNG_GROUP:
fprintf(output, "<group>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</group>\n");
break;
case XML_RELAXNG_INTERLEAVE:
fprintf(output, "<interleave>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</interleave>\n");
break;
case XML_RELAXNG_OPTIONAL:
fprintf(output, "<optional>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</optional>\n");
break;
case XML_RELAXNG_ATTRIBUTE:
fprintf(output, "<attribute>\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</attribute>\n");
break;
case XML_RELAXNG_DEF:
fprintf(output, "<define");
if (define->name != NULL)
fprintf(output, " name=\"%s\"", define->name);
fprintf(output, ">\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</define>\n");
break;
case XML_RELAXNG_REF:
fprintf(output, "<ref");
if (define->name != NULL)
fprintf(output, " name=\"%s\"", define->name);
fprintf(output, ">\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</ref>\n");
break;
case XML_RELAXNG_PARENTREF:
fprintf(output, "<parentRef");
if (define->name != NULL)
fprintf(output, " name=\"%s\"", define->name);
fprintf(output, ">\n");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</parentRef>\n");
break;
case XML_RELAXNG_EXTERNALREF:
fprintf(output, "<externalRef>");
xmlRelaxNGDumpDefines(output, define->content);
fprintf(output, "</externalRef>\n");
break;
case XML_RELAXNG_DATATYPE:
case XML_RELAXNG_VALUE:
TODO break;
case XML_RELAXNG_START:
case XML_RELAXNG_EXCEPT:
case XML_RELAXNG_PARAM:
TODO break;
case XML_RELAXNG_NOOP:
xmlRelaxNGDumpDefines(output, define->content);
break;
}
}
/**
* xmlRelaxNGDumpGrammar:
* @output: the file output
* @grammar: a grammar structure
* @top: is this a top grammar
*
* Dump a RelaxNG structure back
*/
static void
xmlRelaxNGDumpGrammar(FILE * output, xmlRelaxNGGrammarPtr grammar, int top)
{
if (grammar == NULL)
return;
fprintf(output, "<grammar");
if (top)
fprintf(output, " xmlns=\"http://relaxng.org/ns/structure/1.0\"");
switch (grammar->combine) {
case XML_RELAXNG_COMBINE_UNDEFINED:
break;
case XML_RELAXNG_COMBINE_CHOICE:
fprintf(output, " combine=\"choice\"");
break;
case XML_RELAXNG_COMBINE_INTERLEAVE:
fprintf(output, " combine=\"interleave\"");
break;
default:
fprintf(output, " <!-- invalid combine value -->");
}
fprintf(output, ">\n");
if (grammar->start == NULL) {
fprintf(output, " <!-- grammar had no start -->");
} else {
fprintf(output, "<start>\n");
xmlRelaxNGDumpDefine(output, grammar->start);
fprintf(output, "</start>\n");
}
/* TODO ? Dump the defines ? */
fprintf(output, "</grammar>\n");
}
/**
* xmlRelaxNGDump:
* @output: the file output
* @schema: a schema structure
*
* Dump a RelaxNG structure back
*/
void
xmlRelaxNGDump(FILE * output, xmlRelaxNGPtr schema)
{
if (schema == NULL) {
fprintf(output, "RelaxNG empty or failed to compile\n");
return;
}
fprintf(output, "RelaxNG: ");
if (schema->doc == NULL) {
fprintf(output, "no document\n");
} else if (schema->doc->URL != NULL) {
fprintf(output, "%s\n", schema->doc->URL);
} else {
fprintf(output, "\n");
}
if (schema->topgrammar == NULL) {
fprintf(output, "RelaxNG has no top grammar\n");
return;
}
xmlRelaxNGDumpGrammar(output, schema->topgrammar, 1);
}
/**
* xmlRelaxNGDumpTree:
* @output: the file output
* @schema: a schema structure
*
* Dump the transformed RelaxNG tree.
*/
void
xmlRelaxNGDumpTree(FILE * output, xmlRelaxNGPtr schema)
{
if (schema == NULL) {
fprintf(output, "RelaxNG empty or failed to compile\n");
return;
}
if (schema->doc == NULL) {
fprintf(output, "no document\n");
} else {
xmlDocDump(output, schema->doc);
}
}
#endif /* LIBXML_OUTPUT_ENABLED */
/************************************************************************
* *
* Validation of compiled content *
* *
************************************************************************/
static int xmlRelaxNGValidateDefinition(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define);
/**
* xmlRelaxNGValidateCompiledCallback:
* @exec: the regular expression instance
* @token: the token which matched
* @transdata: callback data, the define for the subelement if available
@ @inputdata: callback data, the Relax NG validation context
*
* Handle the callback and if needed validate the element children.
*/
static void
xmlRelaxNGValidateCompiledCallback(xmlRegExecCtxtPtr exec ATTRIBUTE_UNUSED,
const xmlChar * token,
void *transdata, void *inputdata)
{
xmlRelaxNGValidCtxtPtr ctxt = (xmlRelaxNGValidCtxtPtr) inputdata;
xmlRelaxNGDefinePtr define = (xmlRelaxNGDefinePtr) transdata;
int ret;
#ifdef DEBUG_COMPILE
xmlGenericError(xmlGenericErrorContext,
"Compiled callback for: '%s'\n", token);
#endif
if (ctxt == NULL) {
fprintf(stderr, "callback on %s missing context\n", token);
if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
return;
}
if (define == NULL) {
if (token[0] == '#')
return;
fprintf(stderr, "callback on %s missing define\n", token);
if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
return;
}
if ((ctxt == NULL) || (define == NULL)) {
fprintf(stderr, "callback on %s missing info\n", token);
if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
return;
} else if (define->type != XML_RELAXNG_ELEMENT) {
fprintf(stderr, "callback on %s define is not element\n", token);
if (ctxt->errNo == XML_RELAXNG_OK)
ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
return;
}
ret = xmlRelaxNGValidateDefinition(ctxt, define);
if (ret != 0)
ctxt->perr = ret;
}
/**
* xmlRelaxNGValidateCompiledContent:
* @ctxt: the RelaxNG validation context
* @regexp: the regular expression as compiled
* @content: list of children to test against the regexp
*
* Validate the content model of an element or start using the regexp
*
* Returns 0 in case of success, -1 in case of error.
*/
static int
xmlRelaxNGValidateCompiledContent(xmlRelaxNGValidCtxtPtr ctxt,
xmlRegexpPtr regexp, xmlNodePtr content)
{
xmlRegExecCtxtPtr exec;
xmlNodePtr cur;
int ret = 0;
int oldperr = ctxt->perr;
if ((ctxt == NULL) || (regexp == NULL))
return (-1);
exec = xmlRegNewExecCtxt(regexp,
xmlRelaxNGValidateCompiledCallback, ctxt);
ctxt->perr = 0;
cur = content;
while (cur != NULL) {
ctxt->state->seq = cur;
switch (cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
if (xmlIsBlankNode(cur))
break;
ret = xmlRegExecPushString(exec, BAD_CAST "#text", ctxt);
if (ret < 0) {
VALID_ERR2(XML_RELAXNG_ERR_TEXTWRONG,
cur->parent->name);
}
break;
case XML_ELEMENT_NODE:
if (cur->ns != NULL) {
ret = xmlRegExecPushString2(exec, cur->name,
cur->ns->href, ctxt);
} else {
ret = xmlRegExecPushString(exec, cur->name, ctxt);
}
if (ret < 0) {
VALID_ERR2(XML_RELAXNG_ERR_ELEMWRONG, cur->name);
}
break;
default:
break;
}
if (ret < 0)
break;
/*
* Switch to next element
*/
cur = cur->next;
}
ret = xmlRegExecPushString(exec, NULL, NULL);
if (ret == 1) {
ret = 0;
ctxt->state->seq = NULL;
} else if (ret == 0) {
/*
* TODO: get some of the names needed to exit the current state of exec
*/
VALID_ERR2(XML_RELAXNG_ERR_NOELEM, BAD_CAST "");
ret = -1;
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
} else {
ret = -1;
}
xmlRegFreeExecCtxt(exec);
/*
* There might be content model errors outside of the pure
* regexp validation, e.g. for attribute values.
*/
if ((ret == 0) && (ctxt->perr != 0)) {
ret = ctxt->perr;
}
ctxt->perr = oldperr;
return (ret);
}
/************************************************************************
* *
* Progressive validation of when possible *
* *
************************************************************************/
static int xmlRelaxNGValidateAttributeList(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr defines);
static int xmlRelaxNGValidateElementEnd(xmlRelaxNGValidCtxtPtr ctxt,
int dolog);
static void xmlRelaxNGLogBestError(xmlRelaxNGValidCtxtPtr ctxt);
/**
* xmlRelaxNGElemPush:
* @ctxt: the validation context
* @exec: the regexp runtime for the new content model
*
* Push a new regexp for the current node content model on the stack
*
* Returns 0 in case of success and -1 in case of error.
*/
static int
xmlRelaxNGElemPush(xmlRelaxNGValidCtxtPtr ctxt, xmlRegExecCtxtPtr exec)
{
if (ctxt->elemTab == NULL) {
ctxt->elemMax = 10;
ctxt->elemTab = (xmlRegExecCtxtPtr *) xmlMalloc(ctxt->elemMax *
sizeof
(xmlRegExecCtxtPtr));
if (ctxt->elemTab == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
return (-1);
}
}
if (ctxt->elemNr >= ctxt->elemMax) {
ctxt->elemMax *= 2;
ctxt->elemTab = (xmlRegExecCtxtPtr *) xmlRealloc(ctxt->elemTab,
ctxt->elemMax *
sizeof
(xmlRegExecCtxtPtr));
if (ctxt->elemTab == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
return (-1);
}
}
ctxt->elemTab[ctxt->elemNr++] = exec;
ctxt->elem = exec;
return (0);
}
/**
* xmlRelaxNGElemPop:
* @ctxt: the validation context
*
* Pop the regexp of the current node content model from the stack
*
* Returns the exec or NULL if empty
*/
static xmlRegExecCtxtPtr
xmlRelaxNGElemPop(xmlRelaxNGValidCtxtPtr ctxt)
{
xmlRegExecCtxtPtr ret;
if (ctxt->elemNr <= 0)
return (NULL);
ctxt->elemNr--;
ret = ctxt->elemTab[ctxt->elemNr];
ctxt->elemTab[ctxt->elemNr] = NULL;
if (ctxt->elemNr > 0)
ctxt->elem = ctxt->elemTab[ctxt->elemNr - 1];
else
ctxt->elem = NULL;
return (ret);
}
/**
* xmlRelaxNGValidateProgressiveCallback:
* @exec: the regular expression instance
* @token: the token which matched
* @transdata: callback data, the define for the subelement if available
@ @inputdata: callback data, the Relax NG validation context
*
* Handle the callback and if needed validate the element children.
* some of the in/out informations are passed via the context in @inputdata.
*/
static void
xmlRelaxNGValidateProgressiveCallback(xmlRegExecCtxtPtr exec
ATTRIBUTE_UNUSED,
const xmlChar * token,
void *transdata, void *inputdata)
{
xmlRelaxNGValidCtxtPtr ctxt = (xmlRelaxNGValidCtxtPtr) inputdata;
xmlRelaxNGDefinePtr define = (xmlRelaxNGDefinePtr) transdata;
xmlRelaxNGValidStatePtr state, oldstate;
xmlNodePtr node = ctxt->pnode;
int ret = 0, oldflags;
#ifdef DEBUG_PROGRESSIVE
xmlGenericError(xmlGenericErrorContext,
"Progressive callback for: '%s'\n", token);
#endif
if (ctxt == NULL) {
fprintf(stderr, "callback on %s missing context\n", token);
return;
}
ctxt->pstate = 1;
if (define == NULL) {
if (token[0] == '#')
return;
fprintf(stderr, "callback on %s missing define\n", token);
if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
ctxt->pstate = -1;
return;
}
if ((ctxt == NULL) || (define == NULL)) {
fprintf(stderr, "callback on %s missing info\n", token);
if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
ctxt->pstate = -1;
return;
} else if (define->type != XML_RELAXNG_ELEMENT) {
fprintf(stderr, "callback on %s define is not element\n", token);
if (ctxt->errNo == XML_RELAXNG_OK)
ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
ctxt->pstate = -1;
return;
}
if (node->type != XML_ELEMENT_NODE) {
VALID_ERR(XML_RELAXNG_ERR_NOTELEM);
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
ctxt->pstate = -1;
return;
}
if (define->contModel == NULL) {
/*
* this node cannot be validated in a streamable fashion
*/
#ifdef DEBUG_PROGRESSIVE
xmlGenericError(xmlGenericErrorContext,
"Element '%s' validation is not streamable\n",
token);
#endif
ctxt->pstate = 0;
ctxt->pdef = define;
return;
}
exec = xmlRegNewExecCtxt(define->contModel,
xmlRelaxNGValidateProgressiveCallback, ctxt);
if (exec == NULL) {
ctxt->pstate = -1;
return;
}
xmlRelaxNGElemPush(ctxt, exec);
/*
* Validate the attributes part of the content.
*/
state = xmlRelaxNGNewValidState(ctxt, node);
if (state == NULL) {
ctxt->pstate = -1;
return;
}
oldstate = ctxt->state;
ctxt->state = state;
if (define->attrs != NULL) {
ret = xmlRelaxNGValidateAttributeList(ctxt, define->attrs);
if (ret != 0) {
ctxt->pstate = -1;
VALID_ERR2(XML_RELAXNG_ERR_ATTRVALID, node->name);
}
}
if (ctxt->state != NULL) {
ctxt->state->seq = NULL;
ret = xmlRelaxNGValidateElementEnd(ctxt, 1);
if (ret != 0) {
ctxt->pstate = -1;
}
xmlRelaxNGFreeValidState(ctxt, ctxt->state);
} else if (ctxt->states != NULL) {
int tmp = -1, i;
oldflags = ctxt->flags;
for (i = 0; i < ctxt->states->nbState; i++) {
state = ctxt->states->tabState[i];
ctxt->state = state;
ctxt->state->seq = NULL;
if (xmlRelaxNGValidateElementEnd(ctxt, 0) == 0) {
tmp = 0;
break;
}
}
if (tmp != 0) {
/*
* validation error, log the message for the "best" one
*/
ctxt->flags |= FLAGS_IGNORABLE;
xmlRelaxNGLogBestError(ctxt);
}
for (i = 0; i < ctxt->states->nbState; i++) {
xmlRelaxNGFreeValidState(ctxt, ctxt->states->tabState[i]);
}
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
if ((ret == 0) && (tmp == -1))
ctxt->pstate = -1;
ctxt->flags = oldflags;
}
if (ctxt->pstate == -1) {
if ((ctxt->flags & FLAGS_IGNORABLE) == 0) {
xmlRelaxNGDumpValidError(ctxt);
}
}
ctxt->state = oldstate;
}
/**
* xmlRelaxNGValidatePushElement:
* @ctxt: the validation context
* @doc: a document instance
* @elem: an element instance
*
* Push a new element start on the RelaxNG validation stack.
*
* returns 1 if no validation problem was found or 0 if validating the
* element requires a full node, and -1 in case of error.
*/
int
xmlRelaxNGValidatePushElement(xmlRelaxNGValidCtxtPtr ctxt,
xmlDocPtr doc ATTRIBUTE_UNUSED,
xmlNodePtr elem)
{
int ret = 1;
if ((ctxt == NULL) || (elem == NULL))
return (-1);
#ifdef DEBUG_PROGRESSIVE
xmlGenericError(xmlGenericErrorContext, "PushElem %s\n", elem->name);
#endif
if (ctxt->elem == 0) {
xmlRelaxNGPtr schema;
xmlRelaxNGGrammarPtr grammar;
xmlRegExecCtxtPtr exec;
xmlRelaxNGDefinePtr define;
schema = ctxt->schema;
if (schema == NULL) {
VALID_ERR(XML_RELAXNG_ERR_NOGRAMMAR);
return (-1);
}
grammar = schema->topgrammar;
if ((grammar == NULL) || (grammar->start == NULL)) {
VALID_ERR(XML_RELAXNG_ERR_NOGRAMMAR);
return (-1);
}
define = grammar->start;
if (define->contModel == NULL) {
ctxt->pdef = define;
return (0);
}
exec = xmlRegNewExecCtxt(define->contModel,
xmlRelaxNGValidateProgressiveCallback,
ctxt);
if (exec == NULL) {
return (-1);
}
xmlRelaxNGElemPush(ctxt, exec);
}
ctxt->pnode = elem;
ctxt->pstate = 0;
if (elem->ns != NULL) {
ret =
xmlRegExecPushString2(ctxt->elem, elem->name, elem->ns->href,
ctxt);
} else {
ret = xmlRegExecPushString(ctxt->elem, elem->name, ctxt);
}
if (ret < 0) {
VALID_ERR2(XML_RELAXNG_ERR_ELEMWRONG, elem->name);
} else {
if (ctxt->pstate == 0)
ret = 0;
else if (ctxt->pstate < 0)
ret = -1;
else
ret = 1;
}
#ifdef DEBUG_PROGRESSIVE
if (ret < 0)
xmlGenericError(xmlGenericErrorContext, "PushElem %s failed\n",
elem->name);
#endif
return (ret);
}
/**
* xmlRelaxNGValidatePushCData:
* @ctxt: the RelaxNG validation context
* @data: some character data read
* @len: the lenght of the data
*
* check the CData parsed for validation in the current stack
*
* returns 1 if no validation problem was found or -1 otherwise
*/
int
xmlRelaxNGValidatePushCData(xmlRelaxNGValidCtxtPtr ctxt,
const xmlChar * data, int len ATTRIBUTE_UNUSED)
{
int ret = 1;
if ((ctxt == NULL) || (ctxt->elem == NULL) || (data == NULL))
return (-1);
#ifdef DEBUG_PROGRESSIVE
xmlGenericError(xmlGenericErrorContext, "CDATA %s %d\n", data, len);
#endif
while (*data != 0) {
if (!IS_BLANK_CH(*data))
break;
data++;
}
if (*data == 0)
return (1);
ret = xmlRegExecPushString(ctxt->elem, BAD_CAST "#text", ctxt);
if (ret < 0) {
VALID_ERR2(XML_RELAXNG_ERR_TEXTWRONG, BAD_CAST " TODO ");
#ifdef DEBUG_PROGRESSIVE
xmlGenericError(xmlGenericErrorContext, "CDATA failed\n");
#endif
return (-1);
}
return (1);
}
/**
* xmlRelaxNGValidatePopElement:
* @ctxt: the RelaxNG validation context
* @doc: a document instance
* @elem: an element instance
*
* Pop the element end from the RelaxNG validation stack.
*
* returns 1 if no validation problem was found or 0 otherwise
*/
int
xmlRelaxNGValidatePopElement(xmlRelaxNGValidCtxtPtr ctxt,
xmlDocPtr doc ATTRIBUTE_UNUSED,
xmlNodePtr elem)
{
int ret;
xmlRegExecCtxtPtr exec;
if ((ctxt == NULL) || (ctxt->elem == NULL) || (elem == NULL))
return (-1);
#ifdef DEBUG_PROGRESSIVE
xmlGenericError(xmlGenericErrorContext, "PopElem %s\n", elem->name);
#endif
/*
* verify that we reached a terminal state of the content model.
*/
exec = xmlRelaxNGElemPop(ctxt);
ret = xmlRegExecPushString(exec, NULL, NULL);
if (ret == 0) {
/*
* TODO: get some of the names needed to exit the current state of exec
*/
VALID_ERR2(XML_RELAXNG_ERR_NOELEM, BAD_CAST "");
ret = -1;
} else if (ret < 0) {
ret = -1;
} else {
ret = 1;
}
xmlRegFreeExecCtxt(exec);
#ifdef DEBUG_PROGRESSIVE
if (ret < 0)
xmlGenericError(xmlGenericErrorContext, "PopElem %s failed\n",
elem->name);
#endif
return (ret);
}
/**
* xmlRelaxNGValidateFullElement:
* @ctxt: the validation context
* @doc: a document instance
* @elem: an element instance
*
* Validate a full subtree when xmlRelaxNGValidatePushElement() returned
* 0 and the content of the node has been expanded.
*
* returns 1 if no validation problem was found or -1 in case of error.
*/
int
xmlRelaxNGValidateFullElement(xmlRelaxNGValidCtxtPtr ctxt,
xmlDocPtr doc ATTRIBUTE_UNUSED,
xmlNodePtr elem)
{
int ret;
xmlRelaxNGValidStatePtr state;
if ((ctxt == NULL) || (ctxt->pdef == NULL) || (elem == NULL))
return (-1);
#ifdef DEBUG_PROGRESSIVE
xmlGenericError(xmlGenericErrorContext, "FullElem %s\n", elem->name);
#endif
state = xmlRelaxNGNewValidState(ctxt, elem->parent);
if (state == NULL) {
return (-1);
}
state->seq = elem;
ctxt->state = state;
ctxt->errNo = XML_RELAXNG_OK;
ret = xmlRelaxNGValidateDefinition(ctxt, ctxt->pdef);
if ((ret != 0) || (ctxt->errNo != XML_RELAXNG_OK))
ret = -1;
else
ret = 1;
xmlRelaxNGFreeValidState(ctxt, state);
ctxt->state = NULL;
#ifdef DEBUG_PROGRESSIVE
if (ret < 0)
xmlGenericError(xmlGenericErrorContext, "FullElem %s failed\n",
elem->name);
#endif
return (ret);
}
/************************************************************************
* *
* Generic interpreted validation implementation *
* *
************************************************************************/
static int xmlRelaxNGValidateValue(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define);
/**
* xmlRelaxNGSkipIgnored:
* @ctxt: a schema validation context
* @node: the top node.
*
* Skip ignorable nodes in that context
*
* Returns the new sibling or NULL in case of error.
*/
static xmlNodePtr
xmlRelaxNGSkipIgnored(xmlRelaxNGValidCtxtPtr ctxt ATTRIBUTE_UNUSED,
xmlNodePtr node)
{
/*
* TODO complete and handle entities
*/
while ((node != NULL) &&
((node->type == XML_COMMENT_NODE) ||
(node->type == XML_PI_NODE) ||
(node->type == XML_XINCLUDE_START) ||
(node->type == XML_XINCLUDE_END) ||
(((node->type == XML_TEXT_NODE) ||
(node->type == XML_CDATA_SECTION_NODE)) &&
((ctxt->flags & FLAGS_MIXED_CONTENT) ||
(IS_BLANK_NODE(node)))))) {
node = node->next;
}
return (node);
}
/**
* xmlRelaxNGNormalize:
* @ctxt: a schema validation context
* @str: the string to normalize
*
* Implements the normalizeWhiteSpace( s ) function from
* section 6.2.9 of the spec
*
* Returns the new string or NULL in case of error.
*/
static xmlChar *
xmlRelaxNGNormalize(xmlRelaxNGValidCtxtPtr ctxt, const xmlChar * str)
{
xmlChar *ret, *p;
const xmlChar *tmp;
int len;
if (str == NULL)
return (NULL);
tmp = str;
while (*tmp != 0)
tmp++;
len = tmp - str;
ret = (xmlChar *) xmlMallocAtomic((len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
return (NULL);
}
p = ret;
while (IS_BLANK_CH(*str))
str++;
while (*str != 0) {
if (IS_BLANK_CH(*str)) {
while (IS_BLANK_CH(*str))
str++;
if (*str == 0)
break;
*p++ = ' ';
} else
*p++ = *str++;
}
*p = 0;
return (ret);
}
/**
* xmlRelaxNGValidateDatatype:
* @ctxt: a Relax-NG validation context
* @value: the string value
* @type: the datatype definition
* @node: the node
*
* Validate the given value against the dataype
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateDatatype(xmlRelaxNGValidCtxtPtr ctxt,
const xmlChar * value,
xmlRelaxNGDefinePtr define, xmlNodePtr node)
{
int ret, tmp;
xmlRelaxNGTypeLibraryPtr lib;
void *result = NULL;
xmlRelaxNGDefinePtr cur;
if ((define == NULL) || (define->data == NULL)) {
return (-1);
}
lib = (xmlRelaxNGTypeLibraryPtr) define->data;
if (lib->check != NULL) {
if ((define->attrs != NULL) &&
(define->attrs->type == XML_RELAXNG_PARAM)) {
ret =
lib->check(lib->data, define->name, value, &result, node);
} else {
ret = lib->check(lib->data, define->name, value, NULL, node);
}
} else
ret = -1;
if (ret < 0) {
VALID_ERR2(XML_RELAXNG_ERR_TYPE, define->name);
if ((result != NULL) && (lib != NULL) && (lib->freef != NULL))
lib->freef(lib->data, result);
return (-1);
} else if (ret == 1) {
ret = 0;
} else if (ret == 2) {
VALID_ERR2P(XML_RELAXNG_ERR_DUPID, value);
} else {
VALID_ERR3P(XML_RELAXNG_ERR_TYPEVAL, define->name, value);
ret = -1;
}
cur = define->attrs;
while ((ret == 0) && (cur != NULL) && (cur->type == XML_RELAXNG_PARAM)) {
if (lib->facet != NULL) {
tmp = lib->facet(lib->data, define->name, cur->name,
cur->value, value, result);
if (tmp != 0)
ret = -1;
}
cur = cur->next;
}
if ((ret == 0) && (define->content != NULL)) {
const xmlChar *oldvalue, *oldendvalue;
oldvalue = ctxt->state->value;
oldendvalue = ctxt->state->endvalue;
ctxt->state->value = (xmlChar *) value;
ctxt->state->endvalue = NULL;
ret = xmlRelaxNGValidateValue(ctxt, define->content);
ctxt->state->value = (xmlChar *) oldvalue;
ctxt->state->endvalue = (xmlChar *) oldendvalue;
}
if ((result != NULL) && (lib != NULL) && (lib->freef != NULL))
lib->freef(lib->data, result);
return (ret);
}
/**
* xmlRelaxNGNextValue:
* @ctxt: a Relax-NG validation context
*
* Skip to the next value when validating within a list
*
* Returns 0 if the operation succeeded or an error code.
*/
static int
xmlRelaxNGNextValue(xmlRelaxNGValidCtxtPtr ctxt)
{
xmlChar *cur;
cur = ctxt->state->value;
if ((cur == NULL) || (ctxt->state->endvalue == NULL)) {
ctxt->state->value = NULL;
ctxt->state->endvalue = NULL;
return (0);
}
while (*cur != 0)
cur++;
while ((cur != ctxt->state->endvalue) && (*cur == 0))
cur++;
if (cur == ctxt->state->endvalue)
ctxt->state->value = NULL;
else
ctxt->state->value = cur;
return (0);
}
/**
* xmlRelaxNGValidateValueList:
* @ctxt: a Relax-NG validation context
* @defines: the list of definitions to verify
*
* Validate the given set of definitions for the current value
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateValueList(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr defines)
{
int ret = 0;
while (defines != NULL) {
ret = xmlRelaxNGValidateValue(ctxt, defines);
if (ret != 0)
break;
defines = defines->next;
}
return (ret);
}
/**
* xmlRelaxNGValidateValue:
* @ctxt: a Relax-NG validation context
* @define: the definition to verify
*
* Validate the given definition for the current value
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateValue(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define)
{
int ret = 0, oldflags;
xmlChar *value;
value = ctxt->state->value;
switch (define->type) {
case XML_RELAXNG_EMPTY:{
if ((value != NULL) && (value[0] != 0)) {
int idx = 0;
while (IS_BLANK_CH(value[idx]))
idx++;
if (value[idx] != 0)
ret = -1;
}
break;
}
case XML_RELAXNG_TEXT:
break;
case XML_RELAXNG_VALUE:{
if (!xmlStrEqual(value, define->value)) {
if (define->name != NULL) {
xmlRelaxNGTypeLibraryPtr lib;
lib = (xmlRelaxNGTypeLibraryPtr) define->data;
if ((lib != NULL) && (lib->comp != NULL)) {
ret = lib->comp(lib->data, define->name,
define->value, define->node,
(void *) define->attrs,
value, ctxt->state->node);
} else
ret = -1;
if (ret < 0) {
VALID_ERR2(XML_RELAXNG_ERR_TYPECMP,
define->name);
return (-1);
} else if (ret == 1) {
ret = 0;
} else {
ret = -1;
}
} else {
xmlChar *nval, *nvalue;
/*
* TODO: trivial optimizations are possible by
* computing at compile-time
*/
nval = xmlRelaxNGNormalize(ctxt, define->value);
nvalue = xmlRelaxNGNormalize(ctxt, value);
if ((nval == NULL) || (nvalue == NULL) ||
(!xmlStrEqual(nval, nvalue)))
ret = -1;
if (nval != NULL)
xmlFree(nval);
if (nvalue != NULL)
xmlFree(nvalue);
}
}
if (ret == 0)
xmlRelaxNGNextValue(ctxt);
break;
}
case XML_RELAXNG_DATATYPE:{
ret = xmlRelaxNGValidateDatatype(ctxt, value, define,
ctxt->state->seq);
if (ret == 0)
xmlRelaxNGNextValue(ctxt);
break;
}
case XML_RELAXNG_CHOICE:{
xmlRelaxNGDefinePtr list = define->content;
xmlChar *oldvalue;
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
oldvalue = ctxt->state->value;
while (list != NULL) {
ret = xmlRelaxNGValidateValue(ctxt, list);
if (ret == 0) {
break;
}
ctxt->state->value = oldvalue;
list = list->next;
}
ctxt->flags = oldflags;
if (ret != 0) {
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
} else {
if (ctxt->errNr > 0)
xmlRelaxNGPopErrors(ctxt, 0);
}
if (ret == 0)
xmlRelaxNGNextValue(ctxt);
break;
}
case XML_RELAXNG_LIST:{
xmlRelaxNGDefinePtr list = define->content;
xmlChar *oldvalue, *oldend, *val, *cur;
#ifdef DEBUG_LIST
int nb_values = 0;
#endif
oldvalue = ctxt->state->value;
oldend = ctxt->state->endvalue;
val = xmlStrdup(oldvalue);
if (val == NULL) {
val = xmlStrdup(BAD_CAST "");
}
if (val == NULL) {
VALID_ERR(XML_RELAXNG_ERR_NOSTATE);
return (-1);
}
cur = val;
while (*cur != 0) {
if (IS_BLANK_CH(*cur)) {
*cur = 0;
cur++;
#ifdef DEBUG_LIST
nb_values++;
#endif
while (IS_BLANK_CH(*cur))
*cur++ = 0;
} else
cur++;
}
#ifdef DEBUG_LIST
xmlGenericError(xmlGenericErrorContext,
"list value: '%s' found %d items\n",
oldvalue, nb_values);
nb_values = 0;
#endif
ctxt->state->endvalue = cur;
cur = val;
while ((*cur == 0) && (cur != ctxt->state->endvalue))
cur++;
ctxt->state->value = cur;
while (list != NULL) {
if (ctxt->state->value == ctxt->state->endvalue)
ctxt->state->value = NULL;
ret = xmlRelaxNGValidateValue(ctxt, list);
if (ret != 0) {
#ifdef DEBUG_LIST
xmlGenericError(xmlGenericErrorContext,
"Failed to validate value: '%s' with %d rule\n",
ctxt->state->value, nb_values);
#endif
break;
}
#ifdef DEBUG_LIST
nb_values++;
#endif
list = list->next;
}
if ((ret == 0) && (ctxt->state->value != NULL) &&
(ctxt->state->value != ctxt->state->endvalue)) {
VALID_ERR2(XML_RELAXNG_ERR_LISTEXTRA,
ctxt->state->value);
ret = -1;
}
xmlFree(val);
ctxt->state->value = oldvalue;
ctxt->state->endvalue = oldend;
break;
}
case XML_RELAXNG_ONEORMORE:
ret = xmlRelaxNGValidateValueList(ctxt, define->content);
if (ret != 0) {
break;
}
/* no break on purpose */
case XML_RELAXNG_ZEROORMORE:{
xmlChar *cur, *temp;
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
cur = ctxt->state->value;
temp = NULL;
while ((cur != NULL) && (cur != ctxt->state->endvalue) &&
(temp != cur)) {
temp = cur;
ret =
xmlRelaxNGValidateValueList(ctxt, define->content);
if (ret != 0) {
ctxt->state->value = temp;
ret = 0;
break;
}
cur = ctxt->state->value;
}
ctxt->flags = oldflags;
if (ret != 0) {
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
} else {
if (ctxt->errNr > 0)
xmlRelaxNGPopErrors(ctxt, 0);
}
break;
}
case XML_RELAXNG_EXCEPT:{
xmlRelaxNGDefinePtr list;
list = define->content;
while (list != NULL) {
ret = xmlRelaxNGValidateValue(ctxt, list);
if (ret == 0) {
ret = -1;
break;
} else
ret = 0;
list = list->next;
}
break;
}
case XML_RELAXNG_DEF:
case XML_RELAXNG_GROUP:{
xmlRelaxNGDefinePtr list;
list = define->content;
while (list != NULL) {
ret = xmlRelaxNGValidateValue(ctxt, list);
if (ret != 0) {
ret = -1;
break;
} else
ret = 0;
list = list->next;
}
break;
}
case XML_RELAXNG_REF:
case XML_RELAXNG_PARENTREF:
ret = xmlRelaxNGValidateValue(ctxt, define->content);
break;
default:
TODO ret = -1;
}
return (ret);
}
/**
* xmlRelaxNGValidateValueContent:
* @ctxt: a Relax-NG validation context
* @defines: the list of definitions to verify
*
* Validate the given definitions for the current value
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateValueContent(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr defines)
{
int ret = 0;
while (defines != NULL) {
ret = xmlRelaxNGValidateValue(ctxt, defines);
if (ret != 0)
break;
defines = defines->next;
}
return (ret);
}
/**
* xmlRelaxNGAttributeMatch:
* @ctxt: a Relax-NG validation context
* @define: the definition to check
* @prop: the attribute
*
* Check if the attribute matches the definition nameClass
*
* Returns 1 if the attribute matches, 0 if no, or -1 in case of error
*/
static int
xmlRelaxNGAttributeMatch(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define, xmlAttrPtr prop)
{
int ret;
if (define->name != NULL) {
if (!xmlStrEqual(define->name, prop->name))
return (0);
}
if (define->ns != NULL) {
if (define->ns[0] == 0) {
if (prop->ns != NULL)
return (0);
} else {
if ((prop->ns == NULL) ||
(!xmlStrEqual(define->ns, prop->ns->href)))
return (0);
}
}
if (define->nameClass == NULL)
return (1);
define = define->nameClass;
if (define->type == XML_RELAXNG_EXCEPT) {
xmlRelaxNGDefinePtr list;
list = define->content;
while (list != NULL) {
ret = xmlRelaxNGAttributeMatch(ctxt, list, prop);
if (ret == 1)
return (0);
if (ret < 0)
return (ret);
list = list->next;
}
} else {
TODO}
return (1);
}
/**
* xmlRelaxNGValidateAttribute:
* @ctxt: a Relax-NG validation context
* @define: the definition to verify
*
* Validate the given attribute definition for that node
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateAttribute(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define)
{
int ret = 0, i;
xmlChar *value, *oldvalue;
xmlAttrPtr prop = NULL, tmp;
xmlNodePtr oldseq;
if (ctxt->state->nbAttrLeft <= 0)
return (-1);
if (define->name != NULL) {
for (i = 0; i < ctxt->state->nbAttrs; i++) {
tmp = ctxt->state->attrs[i];
if ((tmp != NULL) && (xmlStrEqual(define->name, tmp->name))) {
if ((((define->ns == NULL) || (define->ns[0] == 0)) &&
(tmp->ns == NULL)) ||
((tmp->ns != NULL) &&
(xmlStrEqual(define->ns, tmp->ns->href)))) {
prop = tmp;
break;
}
}
}
if (prop != NULL) {
value = xmlNodeListGetString(prop->doc, prop->children, 1);
oldvalue = ctxt->state->value;
oldseq = ctxt->state->seq;
ctxt->state->seq = (xmlNodePtr) prop;
ctxt->state->value = value;
ctxt->state->endvalue = NULL;
ret = xmlRelaxNGValidateValueContent(ctxt, define->content);
if (ctxt->state->value != NULL)
value = ctxt->state->value;
if (value != NULL)
xmlFree(value);
ctxt->state->value = oldvalue;
ctxt->state->seq = oldseq;
if (ret == 0) {
/*
* flag the attribute as processed
*/
ctxt->state->attrs[i] = NULL;
ctxt->state->nbAttrLeft--;
}
} else {
ret = -1;
}
#ifdef DEBUG
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGValidateAttribute(%s): %d\n",
define->name, ret);
#endif
} else {
for (i = 0; i < ctxt->state->nbAttrs; i++) {
tmp = ctxt->state->attrs[i];
if ((tmp != NULL) &&
(xmlRelaxNGAttributeMatch(ctxt, define, tmp) == 1)) {
prop = tmp;
break;
}
}
if (prop != NULL) {
value = xmlNodeListGetString(prop->doc, prop->children, 1);
oldvalue = ctxt->state->value;
oldseq = ctxt->state->seq;
ctxt->state->seq = (xmlNodePtr) prop;
ctxt->state->value = value;
ret = xmlRelaxNGValidateValueContent(ctxt, define->content);
if (ctxt->state->value != NULL)
value = ctxt->state->value;
if (value != NULL)
xmlFree(value);
ctxt->state->value = oldvalue;
ctxt->state->seq = oldseq;
if (ret == 0) {
/*
* flag the attribute as processed
*/
ctxt->state->attrs[i] = NULL;
ctxt->state->nbAttrLeft--;
}
} else {
ret = -1;
}
#ifdef DEBUG
if (define->ns != NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGValidateAttribute(nsName ns = %s): %d\n",
define->ns, ret);
} else {
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGValidateAttribute(anyName): %d\n",
ret);
}
#endif
}
return (ret);
}
/**
* xmlRelaxNGValidateAttributeList:
* @ctxt: a Relax-NG validation context
* @define: the list of definition to verify
*
* Validate the given node against the list of attribute definitions
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateAttributeList(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr defines)
{
int ret = 0, res;
int needmore = 0;
xmlRelaxNGDefinePtr cur;
cur = defines;
while (cur != NULL) {
if (cur->type == XML_RELAXNG_ATTRIBUTE) {
if (xmlRelaxNGValidateAttribute(ctxt, cur) != 0)
ret = -1;
} else
needmore = 1;
cur = cur->next;
}
if (!needmore)
return (ret);
cur = defines;
while (cur != NULL) {
if (cur->type != XML_RELAXNG_ATTRIBUTE) {
if ((ctxt->state != NULL) || (ctxt->states != NULL)) {
res = xmlRelaxNGValidateDefinition(ctxt, cur);
if (res < 0)
ret = -1;
} else {
VALID_ERR(XML_RELAXNG_ERR_NOSTATE);
return (-1);
}
if (res == -1) /* continues on -2 */
break;
}
cur = cur->next;
}
return (ret);
}
/**
* xmlRelaxNGNodeMatchesList:
* @node: the node
* @list: a NULL terminated array of definitions
*
* Check if a node can be matched by one of the definitions
*
* Returns 1 if matches 0 otherwise
*/
static int
xmlRelaxNGNodeMatchesList(xmlNodePtr node, xmlRelaxNGDefinePtr * list)
{
xmlRelaxNGDefinePtr cur;
int i = 0, tmp;
if ((node == NULL) || (list == NULL))
return (0);
cur = list[i++];
while (cur != NULL) {
if ((node->type == XML_ELEMENT_NODE) &&
(cur->type == XML_RELAXNG_ELEMENT)) {
tmp = xmlRelaxNGElementMatch(NULL, cur, node);
if (tmp == 1)
return (1);
} else if (((node->type == XML_TEXT_NODE) ||
(node->type == XML_CDATA_SECTION_NODE)) &&
(cur->type == XML_RELAXNG_TEXT)) {
return (1);
}
cur = list[i++];
}
return (0);
}
/**
* xmlRelaxNGValidateInterleave:
* @ctxt: a Relax-NG validation context
* @define: the definition to verify
*
* Validate an interleave definition for a node.
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateInterleave(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define)
{
int ret = 0, i, nbgroups;
int errNr = ctxt->errNr;
int oldflags;
xmlRelaxNGValidStatePtr oldstate;
xmlRelaxNGPartitionPtr partitions;
xmlRelaxNGInterleaveGroupPtr group = NULL;
xmlNodePtr cur, start, last = NULL, lastchg = NULL, lastelem;
xmlNodePtr *list = NULL, *lasts = NULL;
if (define->data != NULL) {
partitions = (xmlRelaxNGPartitionPtr) define->data;
nbgroups = partitions->nbgroups;
} else {
VALID_ERR(XML_RELAXNG_ERR_INTERNODATA);
return (-1);
}
/*
* Optimizations for MIXED
*/
oldflags = ctxt->flags;
if (define->dflags & IS_MIXED) {
ctxt->flags |= FLAGS_MIXED_CONTENT;
if (nbgroups == 2) {
/*
* this is a pure <mixed> case
*/
if (ctxt->state != NULL)
ctxt->state->seq = xmlRelaxNGSkipIgnored(ctxt,
ctxt->state->seq);
if (partitions->groups[0]->rule->type == XML_RELAXNG_TEXT)
ret = xmlRelaxNGValidateDefinition(ctxt,
partitions->groups[1]->
rule);
else
ret = xmlRelaxNGValidateDefinition(ctxt,
partitions->groups[0]->
rule);
if (ret == 0) {
if (ctxt->state != NULL)
ctxt->state->seq = xmlRelaxNGSkipIgnored(ctxt,
ctxt->state->
seq);
}
ctxt->flags = oldflags;
return (ret);
}
}
/*
* Build arrays to store the first and last node of the chain
* pertaining to each group
*/
list = (xmlNodePtr *) xmlMalloc(nbgroups * sizeof(xmlNodePtr));
if (list == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
return (-1);
}
memset(list, 0, nbgroups * sizeof(xmlNodePtr));
lasts = (xmlNodePtr *) xmlMalloc(nbgroups * sizeof(xmlNodePtr));
if (lasts == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
return (-1);
}
memset(lasts, 0, nbgroups * sizeof(xmlNodePtr));
/*
* Walk the sequence of children finding the right group and
* sorting them in sequences.
*/
cur = ctxt->state->seq;
cur = xmlRelaxNGSkipIgnored(ctxt, cur);
start = cur;
while (cur != NULL) {
ctxt->state->seq = cur;
if ((partitions->triage != NULL) &&
(partitions->flags & IS_DETERMINIST)) {
void *tmp = NULL;
if ((cur->type == XML_TEXT_NODE) ||
(cur->type == XML_CDATA_SECTION_NODE)) {
tmp = xmlHashLookup2(partitions->triage, BAD_CAST "#text",
NULL);
} else if (cur->type == XML_ELEMENT_NODE) {
if (cur->ns != NULL) {
tmp = xmlHashLookup2(partitions->triage, cur->name,
cur->ns->href);
if (tmp == NULL)
tmp = xmlHashLookup2(partitions->triage,
BAD_CAST "#any",
cur->ns->href);
} else
tmp =
xmlHashLookup2(partitions->triage, cur->name,
NULL);
if (tmp == NULL)
tmp =
xmlHashLookup2(partitions->triage, BAD_CAST "#any",
NULL);
}
if (tmp == NULL) {
i = nbgroups;
} else {
i = ((long) tmp) - 1;
if (partitions->flags & IS_NEEDCHECK) {
group = partitions->groups[i];
if (!xmlRelaxNGNodeMatchesList(cur, group->defs))
i = nbgroups;
}
}
} else {
for (i = 0; i < nbgroups; i++) {
group = partitions->groups[i];
if (group == NULL)
continue;
if (xmlRelaxNGNodeMatchesList(cur, group->defs))
break;
}
}
/*
* We break as soon as an element not matched is found
*/
if (i >= nbgroups) {
break;
}
if (lasts[i] != NULL) {
lasts[i]->next = cur;
lasts[i] = cur;
} else {
list[i] = cur;
lasts[i] = cur;
}
if (cur->next != NULL)
lastchg = cur->next;
else
lastchg = cur;
cur = xmlRelaxNGSkipIgnored(ctxt, cur->next);
}
if (ret != 0) {
VALID_ERR(XML_RELAXNG_ERR_INTERSEQ);
ret = -1;
goto done;
}
lastelem = cur;
oldstate = ctxt->state;
for (i = 0; i < nbgroups; i++) {
ctxt->state = xmlRelaxNGCopyValidState(ctxt, oldstate);
group = partitions->groups[i];
if (lasts[i] != NULL) {
last = lasts[i]->next;
lasts[i]->next = NULL;
}
ctxt->state->seq = list[i];
ret = xmlRelaxNGValidateDefinition(ctxt, group->rule);
if (ret != 0)
break;
if (ctxt->state != NULL) {
cur = ctxt->state->seq;
cur = xmlRelaxNGSkipIgnored(ctxt, cur);
xmlRelaxNGFreeValidState(ctxt, oldstate);
oldstate = ctxt->state;
ctxt->state = NULL;
if (cur != NULL) {
VALID_ERR2(XML_RELAXNG_ERR_INTEREXTRA, cur->name);
ret = -1;
ctxt->state = oldstate;
goto done;
}
} else if (ctxt->states != NULL) {
int j;
int found = 0;
for (j = 0; j < ctxt->states->nbState; j++) {
cur = ctxt->states->tabState[j]->seq;
cur = xmlRelaxNGSkipIgnored(ctxt, cur);
if (cur == NULL) {
found = 1;
break;
}
}
if (ctxt->states->nbState > 0) {
xmlRelaxNGFreeValidState(ctxt, oldstate);
oldstate =
ctxt->states->tabState[ctxt->states->nbState - 1];
}
for (j = 0; j < ctxt->states->nbState - 1; j++) {
xmlRelaxNGFreeValidState(ctxt, ctxt->states->tabState[j]);
}
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
if (found == 0) {
VALID_ERR2(XML_RELAXNG_ERR_INTEREXTRA, cur->name);
ret = -1;
ctxt->state = oldstate;
goto done;
}
} else {
ret = -1;
break;
}
if (lasts[i] != NULL) {
lasts[i]->next = last;
}
}
if (ctxt->state != NULL)
xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = oldstate;
ctxt->state->seq = lastelem;
if (ret != 0) {
VALID_ERR(XML_RELAXNG_ERR_INTERSEQ);
ret = -1;
goto done;
}
done:
ctxt->flags = oldflags;
/*
* builds the next links chain from the prev one
*/
cur = lastchg;
while (cur != NULL) {
if ((cur == start) || (cur->prev == NULL))
break;
cur->prev->next = cur;
cur = cur->prev;
}
if (ret == 0) {
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
}
xmlFree(list);
xmlFree(lasts);
return (ret);
}
/**
* xmlRelaxNGValidateDefinitionList:
* @ctxt: a Relax-NG validation context
* @define: the list of definition to verify
*
* Validate the given node content against the (list) of definitions
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateDefinitionList(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr defines)
{
int ret = 0, res;
if (defines == NULL) {
VALID_ERR2(XML_RELAXNG_ERR_INTERNAL,
BAD_CAST "NULL definition list");
return (-1);
}
while (defines != NULL) {
if ((ctxt->state != NULL) || (ctxt->states != NULL)) {
res = xmlRelaxNGValidateDefinition(ctxt, defines);
if (res < 0)
ret = -1;
} else {
VALID_ERR(XML_RELAXNG_ERR_NOSTATE);
return (-1);
}
if (res == -1) /* continues on -2 */
break;
defines = defines->next;
}
return (ret);
}
/**
* xmlRelaxNGElementMatch:
* @ctxt: a Relax-NG validation context
* @define: the definition to check
* @elem: the element
*
* Check if the element matches the definition nameClass
*
* Returns 1 if the element matches, 0 if no, or -1 in case of error
*/
static int
xmlRelaxNGElementMatch(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define, xmlNodePtr elem)
{
int ret = 0, oldflags = 0;
if (define->name != NULL) {
if (!xmlStrEqual(elem->name, define->name)) {
VALID_ERR3(XML_RELAXNG_ERR_ELEMNAME, define->name, elem->name);
return (0);
}
}
if ((define->ns != NULL) && (define->ns[0] != 0)) {
if (elem->ns == NULL) {
VALID_ERR2(XML_RELAXNG_ERR_ELEMNONS, elem->name);
return (0);
} else if (!xmlStrEqual(elem->ns->href, define->ns)) {
VALID_ERR3(XML_RELAXNG_ERR_ELEMWRONGNS,
elem->name, define->ns);
return (0);
}
} else if ((elem->ns != NULL) && (define->ns != NULL) &&
(define->name == NULL)) {
VALID_ERR2(XML_RELAXNG_ERR_ELEMEXTRANS, elem->name);
return (0);
} else if ((elem->ns != NULL) && (define->name != NULL)) {
VALID_ERR2(XML_RELAXNG_ERR_ELEMEXTRANS, define->name);
return (0);
}
if (define->nameClass == NULL)
return (1);
define = define->nameClass;
if (define->type == XML_RELAXNG_EXCEPT) {
xmlRelaxNGDefinePtr list;
if (ctxt != NULL) {
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
}
list = define->content;
while (list != NULL) {
ret = xmlRelaxNGElementMatch(ctxt, list, elem);
if (ret == 1) {
if (ctxt != NULL)
ctxt->flags = oldflags;
return (0);
}
if (ret < 0) {
if (ctxt != NULL)
ctxt->flags = oldflags;
return (ret);
}
list = list->next;
}
ret = 1;
if (ctxt != NULL) {
ctxt->flags = oldflags;
}
} else if (define->type == XML_RELAXNG_CHOICE) {
xmlRelaxNGDefinePtr list;
if (ctxt != NULL) {
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
}
list = define->nameClass;
while (list != NULL) {
ret = xmlRelaxNGElementMatch(ctxt, list, elem);
if (ret == 1) {
if (ctxt != NULL)
ctxt->flags = oldflags;
return (1);
}
if (ret < 0) {
if (ctxt != NULL)
ctxt->flags = oldflags;
return (ret);
}
list = list->next;
}
if (ctxt != NULL) {
if (ret != 0) {
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
} else {
if (ctxt->errNr > 0)
xmlRelaxNGPopErrors(ctxt, 0);
}
}
ret = 0;
if (ctxt != NULL) {
ctxt->flags = oldflags;
}
} else {
TODO ret = -1;
}
return (ret);
}
/**
* xmlRelaxNGBestState:
* @ctxt: a Relax-NG validation context
*
* Find the "best" state in the ctxt->states list of states to report
* errors about. I.e. a state with no element left in the child list
* or the one with the less attributes left.
* This is called only if a falidation error was detected
*
* Returns the index of the "best" state or -1 in case of error
*/
static int
xmlRelaxNGBestState(xmlRelaxNGValidCtxtPtr ctxt)
{
xmlRelaxNGValidStatePtr state;
int i, tmp;
int best = -1;
int value = 1000000;
if ((ctxt == NULL) || (ctxt->states == NULL) ||
(ctxt->states->nbState <= 0))
return (-1);
for (i = 0; i < ctxt->states->nbState; i++) {
state = ctxt->states->tabState[i];
if (state == NULL)
continue;
if (state->seq != NULL) {
if ((best == -1) || (value > 100000)) {
value = 100000;
best = i;
}
} else {
tmp = state->nbAttrLeft;
if ((best == -1) || (value > tmp)) {
value = tmp;
best = i;
}
}
}
return (best);
}
/**
* xmlRelaxNGLogBestError:
* @ctxt: a Relax-NG validation context
*
* Find the "best" state in the ctxt->states list of states to report
* errors about and log it.
*/
static void
xmlRelaxNGLogBestError(xmlRelaxNGValidCtxtPtr ctxt)
{
int best;
if ((ctxt == NULL) || (ctxt->states == NULL) ||
(ctxt->states->nbState <= 0))
return;
best = xmlRelaxNGBestState(ctxt);
if ((best >= 0) && (best < ctxt->states->nbState)) {
ctxt->state = ctxt->states->tabState[best];
xmlRelaxNGValidateElementEnd(ctxt, 1);
}
}
/**
* xmlRelaxNGValidateElementEnd:
* @ctxt: a Relax-NG validation context
* @dolog: indicate that error logging should be done
*
* Validate the end of the element, implements check that
* there is nothing left not consumed in the element content
* or in the attribute list.
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateElementEnd(xmlRelaxNGValidCtxtPtr ctxt, int dolog)
{
int i;
xmlRelaxNGValidStatePtr state;
state = ctxt->state;
if (state->seq != NULL) {
state->seq = xmlRelaxNGSkipIgnored(ctxt, state->seq);
if (state->seq != NULL) {
if (dolog) {
VALID_ERR3(XML_RELAXNG_ERR_EXTRACONTENT,
state->node->name, state->seq->name);
}
return (-1);
}
}
for (i = 0; i < state->nbAttrs; i++) {
if (state->attrs[i] != NULL) {
if (dolog) {
VALID_ERR3(XML_RELAXNG_ERR_INVALIDATTR,
state->attrs[i]->name, state->node->name);
}
return (-1 - i);
}
}
return (0);
}
/**
* xmlRelaxNGValidateState:
* @ctxt: a Relax-NG validation context
* @define: the definition to verify
*
* Validate the current state against the definition
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateState(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define)
{
xmlNodePtr node;
int ret = 0, i, tmp, oldflags, errNr;
xmlRelaxNGValidStatePtr oldstate = NULL, state;
if (define == NULL) {
VALID_ERR(XML_RELAXNG_ERR_NODEFINE);
return (-1);
}
if (ctxt->state != NULL) {
node = ctxt->state->seq;
} else {
node = NULL;
}
#ifdef DEBUG
for (i = 0; i < ctxt->depth; i++)
xmlGenericError(xmlGenericErrorContext, " ");
xmlGenericError(xmlGenericErrorContext,
"Start validating %s ", xmlRelaxNGDefName(define));
if (define->name != NULL)
xmlGenericError(xmlGenericErrorContext, "%s ", define->name);
if ((node != NULL) && (node->name != NULL))
xmlGenericError(xmlGenericErrorContext, "on %s\n", node->name);
else
xmlGenericError(xmlGenericErrorContext, "\n");
#endif
ctxt->depth++;
switch (define->type) {
case XML_RELAXNG_EMPTY:
node = xmlRelaxNGSkipIgnored(ctxt, node);
ret = 0;
break;
case XML_RELAXNG_NOT_ALLOWED:
ret = -1;
break;
case XML_RELAXNG_TEXT:
while ((node != NULL) &&
((node->type == XML_TEXT_NODE) ||
(node->type == XML_COMMENT_NODE) ||
(node->type == XML_PI_NODE) ||
(node->type == XML_CDATA_SECTION_NODE)))
node = node->next;
ctxt->state->seq = node;
break;
case XML_RELAXNG_ELEMENT:
errNr = ctxt->errNr;
node = xmlRelaxNGSkipIgnored(ctxt, node);
if (node == NULL) {
VALID_ERR2(XML_RELAXNG_ERR_NOELEM, define->name);
ret = -1;
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
break;
}
if (node->type != XML_ELEMENT_NODE) {
VALID_ERR(XML_RELAXNG_ERR_NOTELEM);
ret = -1;
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
break;
}
/*
* This node was already validated successfully against
* this definition.
*/
if (node->psvi == define) {
ctxt->state->seq = xmlRelaxNGSkipIgnored(ctxt, node->next);
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
if (ctxt->errNr != 0) {
while ((ctxt->err != NULL) &&
(((ctxt->err->err == XML_RELAXNG_ERR_ELEMNAME)
&& (xmlStrEqual(ctxt->err->arg2, node->name)))
||
((ctxt->err->err ==
XML_RELAXNG_ERR_ELEMEXTRANS)
&& (xmlStrEqual(ctxt->err->arg1, node->name)))
|| (ctxt->err->err == XML_RELAXNG_ERR_NOELEM)
|| (ctxt->err->err ==
XML_RELAXNG_ERR_NOTELEM)))
xmlRelaxNGValidErrorPop(ctxt);
}
break;
}
ret = xmlRelaxNGElementMatch(ctxt, define, node);
if (ret <= 0) {
ret = -1;
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
break;
}
ret = 0;
if (ctxt->errNr != 0) {
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
while ((ctxt->err != NULL) &&
(((ctxt->err->err == XML_RELAXNG_ERR_ELEMNAME) &&
(xmlStrEqual(ctxt->err->arg2, node->name))) ||
((ctxt->err->err == XML_RELAXNG_ERR_ELEMEXTRANS) &&
(xmlStrEqual(ctxt->err->arg1, node->name))) ||
(ctxt->err->err == XML_RELAXNG_ERR_NOELEM) ||
(ctxt->err->err == XML_RELAXNG_ERR_NOTELEM)))
xmlRelaxNGValidErrorPop(ctxt);
}
errNr = ctxt->errNr;
oldflags = ctxt->flags;
if (ctxt->flags & FLAGS_MIXED_CONTENT) {
ctxt->flags -= FLAGS_MIXED_CONTENT;
}
state = xmlRelaxNGNewValidState(ctxt, node);
if (state == NULL) {
ret = -1;
if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
xmlRelaxNGDumpValidError(ctxt);
break;
}
oldstate = ctxt->state;
ctxt->state = state;
if (define->attrs != NULL) {
tmp = xmlRelaxNGValidateAttributeList(ctxt, define->attrs);
if (tmp != 0) {
ret = -1;
VALID_ERR2(XML_RELAXNG_ERR_ATTRVALID, node->name);
}
}
if (define->contModel != NULL) {
xmlRelaxNGValidStatePtr nstate, tmpstate = ctxt->state;
xmlRelaxNGStatesPtr tmpstates = ctxt->states;
xmlNodePtr nseq;
nstate = xmlRelaxNGNewValidState(ctxt, node);
ctxt->state = nstate;
ctxt->states = NULL;
tmp = xmlRelaxNGValidateCompiledContent(ctxt,
define->contModel,
ctxt->state->seq);
nseq = ctxt->state->seq;
ctxt->state = tmpstate;
ctxt->states = tmpstates;
xmlRelaxNGFreeValidState(ctxt, nstate);
#ifdef DEBUG_COMPILE
xmlGenericError(xmlGenericErrorContext,
"Validating content of '%s' : %d\n",
define->name, tmp);
#endif
if (tmp != 0)
ret = -1;
if (ctxt->states != NULL) {
tmp = -1;
for (i = 0; i < ctxt->states->nbState; i++) {
state = ctxt->states->tabState[i];
ctxt->state = state;
ctxt->state->seq = nseq;
if (xmlRelaxNGValidateElementEnd(ctxt, 0) == 0) {
tmp = 0;
break;
}
}
if (tmp != 0) {
/*
* validation error, log the message for the "best" one
*/
ctxt->flags |= FLAGS_IGNORABLE;
xmlRelaxNGLogBestError(ctxt);
}
for (i = 0; i < ctxt->states->nbState; i++) {
xmlRelaxNGFreeValidState(ctxt,
ctxt->states->
tabState[i]);
}
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->flags = oldflags;
ctxt->states = NULL;
if ((ret == 0) && (tmp == -1))
ret = -1;
} else {
state = ctxt->state;
ctxt->state->seq = nseq;
if (ret == 0)
ret = xmlRelaxNGValidateElementEnd(ctxt, 1);
xmlRelaxNGFreeValidState(ctxt, state);
}
} else {
if (define->content != NULL) {
tmp = xmlRelaxNGValidateDefinitionList(ctxt,
define->
content);
if (tmp != 0) {
ret = -1;
if (ctxt->state == NULL) {
ctxt->state = oldstate;
VALID_ERR2(XML_RELAXNG_ERR_CONTENTVALID,
node->name);
ctxt->state = NULL;
} else {
VALID_ERR2(XML_RELAXNG_ERR_CONTENTVALID,
node->name);
}
}
}
if (ctxt->states != NULL) {
tmp = -1;
for (i = 0; i < ctxt->states->nbState; i++) {
state = ctxt->states->tabState[i];
ctxt->state = state;
if (xmlRelaxNGValidateElementEnd(ctxt, 0) == 0) {
tmp = 0;
break;
}
}
if (tmp != 0) {
/*
* validation error, log the message for the "best" one
*/
ctxt->flags |= FLAGS_IGNORABLE;
xmlRelaxNGLogBestError(ctxt);
}
for (i = 0; i < ctxt->states->nbState; i++) {
xmlRelaxNGFreeValidState(ctxt,
ctxt->states->
tabState[i]);
}
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->flags = oldflags;
ctxt->states = NULL;
if ((ret == 0) && (tmp == -1))
ret = -1;
} else {
state = ctxt->state;
if (ret == 0)
ret = xmlRelaxNGValidateElementEnd(ctxt, 1);
xmlRelaxNGFreeValidState(ctxt, state);
}
}
if (ret == 0) {
node->psvi = define;
}
ctxt->flags = oldflags;
ctxt->state = oldstate;
if (oldstate != NULL)
oldstate->seq = xmlRelaxNGSkipIgnored(ctxt, node->next);
if (ret != 0) {
if ((ctxt->flags & FLAGS_IGNORABLE) == 0) {
xmlRelaxNGDumpValidError(ctxt);
ret = 0;
} else {
ret = -2;
}
} else {
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
}
#ifdef DEBUG
xmlGenericError(xmlGenericErrorContext,
"xmlRelaxNGValidateDefinition(): validated %s : %d",
node->name, ret);
if (oldstate == NULL)
xmlGenericError(xmlGenericErrorContext, ": no state\n");
else if (oldstate->seq == NULL)
xmlGenericError(xmlGenericErrorContext, ": done\n");
else if (oldstate->seq->type == XML_ELEMENT_NODE)
xmlGenericError(xmlGenericErrorContext, ": next elem %s\n",
oldstate->seq->name);
else
xmlGenericError(xmlGenericErrorContext, ": next %s %d\n",
oldstate->seq->name, oldstate->seq->type);
#endif
break;
case XML_RELAXNG_OPTIONAL:{
errNr = ctxt->errNr;
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
oldstate = xmlRelaxNGCopyValidState(ctxt, ctxt->state);
ret =
xmlRelaxNGValidateDefinitionList(ctxt,
define->content);
if (ret != 0) {
if (ctxt->state != NULL)
xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = oldstate;
ctxt->flags = oldflags;
ret = 0;
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
break;
}
if (ctxt->states != NULL) {
xmlRelaxNGAddStates(ctxt, ctxt->states, oldstate);
} else {
ctxt->states = xmlRelaxNGNewStates(ctxt, 1);
if (ctxt->states == NULL) {
xmlRelaxNGFreeValidState(ctxt, oldstate);
ctxt->flags = oldflags;
ret = -1;
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
break;
}
xmlRelaxNGAddStates(ctxt, ctxt->states, oldstate);
xmlRelaxNGAddStates(ctxt, ctxt->states, ctxt->state);
ctxt->state = NULL;
}
ctxt->flags = oldflags;
ret = 0;
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
break;
}
case XML_RELAXNG_ONEORMORE:
errNr = ctxt->errNr;
ret = xmlRelaxNGValidateDefinitionList(ctxt, define->content);
if (ret != 0) {
break;
}
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
/* no break on purpose */
case XML_RELAXNG_ZEROORMORE:{
int progress;
xmlRelaxNGStatesPtr states = NULL, res = NULL;
int base, j;
errNr = ctxt->errNr;
res = xmlRelaxNGNewStates(ctxt, 1);
if (res == NULL) {
ret = -1;
break;
}
/*
* All the input states are also exit states
*/
if (ctxt->state != NULL) {
xmlRelaxNGAddStates(ctxt, res,
xmlRelaxNGCopyValidState(ctxt,
ctxt->
state));
} else {
for (j = 0; j < ctxt->states->nbState; j++) {
xmlRelaxNGAddStates(ctxt, res,
xmlRelaxNGCopyValidState(ctxt,
ctxt->
states->
tabState
[j]));
}
}
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
do {
progress = 0;
base = res->nbState;
if (ctxt->states != NULL) {
states = ctxt->states;
for (i = 0; i < states->nbState; i++) {
ctxt->state = states->tabState[i];
ctxt->states = NULL;
ret = xmlRelaxNGValidateDefinitionList(ctxt,
define->
content);
if (ret == 0) {
if (ctxt->state != NULL) {
tmp = xmlRelaxNGAddStates(ctxt, res,
ctxt->state);
ctxt->state = NULL;
if (tmp == 1)
progress = 1;
} else if (ctxt->states != NULL) {
for (j = 0; j < ctxt->states->nbState;
j++) {
tmp =
xmlRelaxNGAddStates(ctxt, res,
ctxt->
states->
tabState
[j]);
if (tmp == 1)
progress = 1;
}
xmlRelaxNGFreeStates(ctxt,
ctxt->states);
ctxt->states = NULL;
}
} else {
if (ctxt->state != NULL) {
xmlRelaxNGFreeValidState(ctxt,
ctxt->state);
ctxt->state = NULL;
}
}
}
} else {
ret = xmlRelaxNGValidateDefinitionList(ctxt,
define->
content);
if (ret != 0) {
xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = NULL;
} else {
base = res->nbState;
if (ctxt->state != NULL) {
tmp = xmlRelaxNGAddStates(ctxt, res,
ctxt->state);
ctxt->state = NULL;
if (tmp == 1)
progress = 1;
} else if (ctxt->states != NULL) {
for (j = 0; j < ctxt->states->nbState; j++) {
tmp = xmlRelaxNGAddStates(ctxt, res,
ctxt->
states->
tabState[j]);
if (tmp == 1)
progress = 1;
}
if (states == NULL) {
states = ctxt->states;
} else {
xmlRelaxNGFreeStates(ctxt,
ctxt->states);
}
ctxt->states = NULL;
}
}
}
if (progress) {
/*
* Collect all the new nodes added at that step
* and make them the new node set
*/
if (res->nbState - base == 1) {
ctxt->state = xmlRelaxNGCopyValidState(ctxt,
res->
tabState
[base]);
} else {
if (states == NULL) {
xmlRelaxNGNewStates(ctxt,
res->nbState - base);
}
states->nbState = 0;
for (i = base; i < res->nbState; i++)
xmlRelaxNGAddStates(ctxt, states,
xmlRelaxNGCopyValidState
(ctxt,
res->tabState[i]));
ctxt->states = states;
}
}
} while (progress == 1);
if (states != NULL) {
xmlRelaxNGFreeStates(ctxt, states);
}
ctxt->states = res;
ctxt->flags = oldflags;
#if 0
/*
* errors may have to be propagated back...
*/
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
#endif
ret = 0;
break;
}
case XML_RELAXNG_CHOICE:{
xmlRelaxNGDefinePtr list = NULL;
xmlRelaxNGStatesPtr states = NULL;
node = xmlRelaxNGSkipIgnored(ctxt, node);
errNr = ctxt->errNr;
if ((define->dflags & IS_TRIABLE)
&& (define->data != NULL)) {
xmlHashTablePtr triage =
(xmlHashTablePtr) define->data;
/*
* Something we can optimize cleanly there is only one
* possble branch out !
*/
if (node == NULL) {
ret = -1;
break;
}
if ((node->type == XML_TEXT_NODE) ||
(node->type == XML_CDATA_SECTION_NODE)) {
list =
xmlHashLookup2(triage, BAD_CAST "#text", NULL);
} else if (node->type == XML_ELEMENT_NODE) {
if (node->ns != NULL) {
list = xmlHashLookup2(triage, node->name,
node->ns->href);
if (list == NULL)
list =
xmlHashLookup2(triage, BAD_CAST "#any",
node->ns->href);
} else
list =
xmlHashLookup2(triage, node->name, NULL);
if (list == NULL)
list =
xmlHashLookup2(triage, BAD_CAST "#any",
NULL);
}
if (list == NULL) {
ret = -1;
VALID_ERR2(XML_RELAXNG_ERR_ELEMWRONG, node->name);
break;
}
ret = xmlRelaxNGValidateDefinition(ctxt, list);
if (ret == 0) {
}
break;
}
list = define->content;
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
while (list != NULL) {
oldstate = xmlRelaxNGCopyValidState(ctxt, ctxt->state);
ret = xmlRelaxNGValidateDefinition(ctxt, list);
if (ret == 0) {
if (states == NULL) {
states = xmlRelaxNGNewStates(ctxt, 1);
}
if (ctxt->state != NULL) {
xmlRelaxNGAddStates(ctxt, states, ctxt->state);
} else if (ctxt->states != NULL) {
for (i = 0; i < ctxt->states->nbState; i++) {
xmlRelaxNGAddStates(ctxt, states,
ctxt->states->
tabState[i]);
}
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
}
} else {
xmlRelaxNGFreeValidState(ctxt, ctxt->state);
}
ctxt->state = oldstate;
list = list->next;
}
if (states != NULL) {
xmlRelaxNGFreeValidState(ctxt, oldstate);
ctxt->states = states;
ctxt->state = NULL;
ret = 0;
} else {
ctxt->states = NULL;
}
ctxt->flags = oldflags;
if (ret != 0) {
if ((ctxt->flags & FLAGS_IGNORABLE) == 0) {
xmlRelaxNGDumpValidError(ctxt);
}
} else {
if (ctxt->errNr > errNr)
xmlRelaxNGPopErrors(ctxt, errNr);
}
break;
}
case XML_RELAXNG_DEF:
case XML_RELAXNG_GROUP:
ret = xmlRelaxNGValidateDefinitionList(ctxt, define->content);
break;
case XML_RELAXNG_INTERLEAVE:
ret = xmlRelaxNGValidateInterleave(ctxt, define);
break;
case XML_RELAXNG_ATTRIBUTE:
ret = xmlRelaxNGValidateAttribute(ctxt, define);
break;
case XML_RELAXNG_START:
case XML_RELAXNG_NOOP:
case XML_RELAXNG_REF:
case XML_RELAXNG_EXTERNALREF:
case XML_RELAXNG_PARENTREF:
ret = xmlRelaxNGValidateDefinition(ctxt, define->content);
break;
case XML_RELAXNG_DATATYPE:{
xmlNodePtr child;
xmlChar *content = NULL;
child = node;
while (child != NULL) {
if (child->type == XML_ELEMENT_NODE) {
VALID_ERR2(XML_RELAXNG_ERR_DATAELEM,
node->parent->name);
ret = -1;
break;
} else if ((child->type == XML_TEXT_NODE) ||
(child->type == XML_CDATA_SECTION_NODE)) {
content = xmlStrcat(content, child->content);
}
/* TODO: handle entities ... */
child = child->next;
}
if (ret == -1) {
if (content != NULL)
xmlFree(content);
break;
}
if (content == NULL) {
content = xmlStrdup(BAD_CAST "");
if (content == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
ret = -1;
break;
}
}
ret = xmlRelaxNGValidateDatatype(ctxt, content, define,
ctxt->state->seq);
if (ret == -1) {
VALID_ERR2(XML_RELAXNG_ERR_DATATYPE, define->name);
} else if (ret == 0) {
ctxt->state->seq = NULL;
}
if (content != NULL)
xmlFree(content);
break;
}
case XML_RELAXNG_VALUE:{
xmlChar *content = NULL;
xmlChar *oldvalue;
xmlNodePtr child;
child = node;
while (child != NULL) {
if (child->type == XML_ELEMENT_NODE) {
VALID_ERR2(XML_RELAXNG_ERR_VALELEM,
node->parent->name);
ret = -1;
break;
} else if ((child->type == XML_TEXT_NODE) ||
(child->type == XML_CDATA_SECTION_NODE)) {
content = xmlStrcat(content, child->content);
}
/* TODO: handle entities ... */
child = child->next;
}
if (ret == -1) {
if (content != NULL)
xmlFree(content);
break;
}
if (content == NULL) {
content = xmlStrdup(BAD_CAST "");
if (content == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
ret = -1;
break;
}
}
oldvalue = ctxt->state->value;
ctxt->state->value = content;
ret = xmlRelaxNGValidateValue(ctxt, define);
ctxt->state->value = oldvalue;
if (ret == -1) {
VALID_ERR2(XML_RELAXNG_ERR_VALUE, define->name);
} else if (ret == 0) {
ctxt->state->seq = NULL;
}
if (content != NULL)
xmlFree(content);
break;
}
case XML_RELAXNG_LIST:{
xmlChar *content;
xmlNodePtr child;
xmlChar *oldvalue, *oldendvalue;
int len;
/*
* Make sure it's only text nodes
*/
content = NULL;
child = node;
while (child != NULL) {
if (child->type == XML_ELEMENT_NODE) {
VALID_ERR2(XML_RELAXNG_ERR_LISTELEM,
node->parent->name);
ret = -1;
break;
} else if ((child->type == XML_TEXT_NODE) ||
(child->type == XML_CDATA_SECTION_NODE)) {
content = xmlStrcat(content, child->content);
}
/* TODO: handle entities ... */
child = child->next;
}
if (ret == -1) {
if (content != NULL)
xmlFree(content);
break;
}
if (content == NULL) {
content = xmlStrdup(BAD_CAST "");
if (content == NULL) {
xmlRngVErrMemory(ctxt, "validating\n");
ret = -1;
break;
}
}
len = xmlStrlen(content);
oldvalue = ctxt->state->value;
oldendvalue = ctxt->state->endvalue;
ctxt->state->value = content;
ctxt->state->endvalue = content + len;
ret = xmlRelaxNGValidateValue(ctxt, define);
ctxt->state->value = oldvalue;
ctxt->state->endvalue = oldendvalue;
if (ret == -1) {
VALID_ERR(XML_RELAXNG_ERR_LIST);
} else if ((ret == 0) && (node != NULL)) {
ctxt->state->seq = node->next;
}
if (content != NULL)
xmlFree(content);
break;
}
case XML_RELAXNG_EXCEPT:
case XML_RELAXNG_PARAM:
TODO ret = -1;
break;
}
ctxt->depth--;
#ifdef DEBUG
for (i = 0; i < ctxt->depth; i++)
xmlGenericError(xmlGenericErrorContext, " ");
xmlGenericError(xmlGenericErrorContext,
"Validating %s ", xmlRelaxNGDefName(define));
if (define->name != NULL)
xmlGenericError(xmlGenericErrorContext, "%s ", define->name);
if (ret == 0)
xmlGenericError(xmlGenericErrorContext, "suceeded\n");
else
xmlGenericError(xmlGenericErrorContext, "failed\n");
#endif
return (ret);
}
/**
* xmlRelaxNGValidateDefinition:
* @ctxt: a Relax-NG validation context
* @define: the definition to verify
*
* Validate the current node lists against the definition
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateDefinition(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGDefinePtr define)
{
xmlRelaxNGStatesPtr states, res;
int i, j, k, ret, oldflags;
/*
* We should NOT have both ctxt->state and ctxt->states
*/
if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = NULL;
}
if ((ctxt->states == NULL) || (ctxt->states->nbState == 1)) {
if (ctxt->states != NULL) {
ctxt->state = ctxt->states->tabState[0];
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
}
ret = xmlRelaxNGValidateState(ctxt, define);
if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = NULL;
}
if ((ctxt->states != NULL) && (ctxt->states->nbState == 1)) {
ctxt->state = ctxt->states->tabState[0];
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
}
return (ret);
}
states = ctxt->states;
ctxt->states = NULL;
res = NULL;
j = 0;
oldflags = ctxt->flags;
ctxt->flags |= FLAGS_IGNORABLE;
for (i = 0; i < states->nbState; i++) {
ctxt->state = states->tabState[i];
ctxt->states = NULL;
ret = xmlRelaxNGValidateState(ctxt, define);
/*
* We should NOT have both ctxt->state and ctxt->states
*/
if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = NULL;
}
if (ret == 0) {
if (ctxt->states == NULL) {
if (res != NULL) {
/* add the state to the container */
xmlRelaxNGAddStates(ctxt, res, ctxt->state);
ctxt->state = NULL;
} else {
/* add the state directly in states */
states->tabState[j++] = ctxt->state;
ctxt->state = NULL;
}
} else {
if (res == NULL) {
/* make it the new container and copy other results */
res = ctxt->states;
ctxt->states = NULL;
for (k = 0; k < j; k++)
xmlRelaxNGAddStates(ctxt, res,
states->tabState[k]);
} else {
/* add all the new results to res and reff the container */
for (k = 0; k < ctxt->states->nbState; k++)
xmlRelaxNGAddStates(ctxt, res,
ctxt->states->tabState[k]);
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
}
}
} else {
if (ctxt->state != NULL) {
xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = NULL;
} else if (ctxt->states != NULL) {
for (k = 0; k < ctxt->states->nbState; k++)
xmlRelaxNGFreeValidState(ctxt,
ctxt->states->tabState[k]);
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
}
}
}
ctxt->flags = oldflags;
if (res != NULL) {
xmlRelaxNGFreeStates(ctxt, states);
ctxt->states = res;
ret = 0;
} else if (j > 1) {
states->nbState = j;
ctxt->states = states;
ret = 0;
} else if (j == 1) {
ctxt->state = states->tabState[0];
xmlRelaxNGFreeStates(ctxt, states);
ret = 0;
} else {
ret = -1;
xmlRelaxNGFreeStates(ctxt, states);
if (ctxt->states != NULL) {
xmlRelaxNGFreeStates(ctxt, ctxt->states);
ctxt->states = NULL;
}
}
if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = NULL;
}
return (ret);
}
/**
* xmlRelaxNGValidateDocument:
* @ctxt: a Relax-NG validation context
* @doc: the document
*
* Validate the given document
*
* Returns 0 if the validation succeeded or an error code.
*/
static int
xmlRelaxNGValidateDocument(xmlRelaxNGValidCtxtPtr ctxt, xmlDocPtr doc)
{
int ret;
xmlRelaxNGPtr schema;
xmlRelaxNGGrammarPtr grammar;
xmlRelaxNGValidStatePtr state;
xmlNodePtr node;
if ((ctxt == NULL) || (ctxt->schema == NULL) || (doc == NULL))
return (-1);
ctxt->errNo = XML_RELAXNG_OK;
schema = ctxt->schema;
grammar = schema->topgrammar;
if (grammar == NULL) {
VALID_ERR(XML_RELAXNG_ERR_NOGRAMMAR);
return (-1);
}
state = xmlRelaxNGNewValidState(ctxt, NULL);
ctxt->state = state;
ret = xmlRelaxNGValidateDefinition(ctxt, grammar->start);
if ((ctxt->state != NULL) && (state->seq != NULL)) {
state = ctxt->state;
node = state->seq;
node = xmlRelaxNGSkipIgnored(ctxt, node);
if (node != NULL) {
if (ret != -1) {
VALID_ERR(XML_RELAXNG_ERR_EXTRADATA);
ret = -1;
}
}
} else if (ctxt->states != NULL) {
int i;
int tmp = -1;
for (i = 0; i < ctxt->states->nbState; i++) {
state = ctxt->states->tabState[i];
node = state->seq;
node = xmlRelaxNGSkipIgnored(ctxt, node);
if (node == NULL)
tmp = 0;
xmlRelaxNGFreeValidState(ctxt, state);
}
if (tmp == -1) {
if (ret != -1) {
VALID_ERR(XML_RELAXNG_ERR_EXTRADATA);
ret = -1;
}
}
}
if (ctxt->state != NULL) {
xmlRelaxNGFreeValidState(ctxt, ctxt->state);
ctxt->state = NULL;
}
if (ret != 0)
xmlRelaxNGDumpValidError(ctxt);
#ifdef DEBUG
else if (ctxt->errNr != 0) {
ctxt->error(ctxt->userData,
"%d Extra error messages left on stack !\n",
ctxt->errNr);
xmlRelaxNGDumpValidError(ctxt);
}
#endif
#ifdef LIBXML_VALID_ENABLED
if (ctxt->idref == 1) {
xmlValidCtxt vctxt;
memset(&vctxt, 0, sizeof(xmlValidCtxt));
vctxt.valid = 1;
vctxt.error = ctxt->error;
vctxt.warning = ctxt->warning;
vctxt.userData = ctxt->userData;
if (xmlValidateDocumentFinal(&vctxt, doc) != 1)
ret = -1;
}
#endif /* LIBXML_VALID_ENABLED */
if ((ret == 0) && (ctxt->errNo != XML_RELAXNG_OK))
ret = -1;
return (ret);
}
/************************************************************************
* *
* Validation interfaces *
* *
************************************************************************/
/**
* xmlRelaxNGNewValidCtxt:
* @schema: a precompiled XML RelaxNGs
*
* Create an XML RelaxNGs validation context based on the given schema
*
* Returns the validation context or NULL in case of error
*/
xmlRelaxNGValidCtxtPtr
xmlRelaxNGNewValidCtxt(xmlRelaxNGPtr schema)
{
xmlRelaxNGValidCtxtPtr ret;
ret = (xmlRelaxNGValidCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGValidCtxt));
if (ret == NULL) {
xmlRngVErrMemory(NULL, "building context\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlRelaxNGValidCtxt));
ret->schema = schema;
ret->error = xmlGenericError;
ret->userData = xmlGenericErrorContext;
ret->errNr = 0;
ret->errMax = 0;
ret->err = NULL;
ret->errTab = NULL;
ret->idref = schema->idref;
ret->states = NULL;
ret->freeState = NULL;
ret->freeStates = NULL;
ret->errNo = XML_RELAXNG_OK;
return (ret);
}
/**
* xmlRelaxNGFreeValidCtxt:
* @ctxt: the schema validation context
*
* Free the resources associated to the schema validation context
*/
void
xmlRelaxNGFreeValidCtxt(xmlRelaxNGValidCtxtPtr ctxt)
{
int k;
if (ctxt == NULL)
return;
if (ctxt->states != NULL)
xmlRelaxNGFreeStates(NULL, ctxt->states);
if (ctxt->freeState != NULL) {
for (k = 0; k < ctxt->freeState->nbState; k++) {
xmlRelaxNGFreeValidState(NULL, ctxt->freeState->tabState[k]);
}
xmlRelaxNGFreeStates(NULL, ctxt->freeState);
}
if (ctxt->freeStates != NULL) {
for (k = 0; k < ctxt->freeStatesNr; k++) {
xmlRelaxNGFreeStates(NULL, ctxt->freeStates[k]);
}
xmlFree(ctxt->freeStates);
}
if (ctxt->errTab != NULL)
xmlFree(ctxt->errTab);
if (ctxt->elemTab != NULL) {
xmlRegExecCtxtPtr exec;
exec = xmlRelaxNGElemPop(ctxt);
while (exec != NULL) {
xmlRegFreeExecCtxt(exec);
exec = xmlRelaxNGElemPop(ctxt);
}
xmlFree(ctxt->elemTab);
}
xmlFree(ctxt);
}
/**
* xmlRelaxNGSetValidErrors:
* @ctxt: a Relax-NG validation context
* @err: the error function
* @warn: the warning function
* @ctx: the functions context
*
* Set the error and warning callback informations
*/
void
xmlRelaxNGSetValidErrors(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidityErrorFunc err,
xmlRelaxNGValidityWarningFunc warn, void *ctx)
{
if (ctxt == NULL)
return;
ctxt->error = err;
ctxt->warning = warn;
ctxt->userData = ctx;
}
/**
* xmlRelaxNGGetValidErrors:
* @ctxt: a Relax-NG validation context
* @err: the error function result
* @warn: the warning function result
* @ctx: the functions context result
*
* Get the error and warning callback informations
*
* Returns -1 in case of error and 0 otherwise
*/
int
xmlRelaxNGGetValidErrors(xmlRelaxNGValidCtxtPtr ctxt,
xmlRelaxNGValidityErrorFunc * err,
xmlRelaxNGValidityWarningFunc * warn, void **ctx)
{
if (ctxt == NULL)
return (-1);
if (err != NULL)
*err = ctxt->error;
if (warn != NULL)
*warn = ctxt->warning;
if (ctx != NULL)
*ctx = ctxt->userData;
return (0);
}
/**
* xmlRelaxNGValidateDoc:
* @ctxt: a Relax-NG validation context
* @doc: a parsed document tree
*
* Validate a document tree in memory.
*
* Returns 0 if the document is valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
int
xmlRelaxNGValidateDoc(xmlRelaxNGValidCtxtPtr ctxt, xmlDocPtr doc)
{
int ret;
if ((ctxt == NULL) || (doc == NULL))
return (-1);
ctxt->doc = doc;
ret = xmlRelaxNGValidateDocument(ctxt, doc);
/*
* TODO: build error codes
*/
if (ret == -1)
return (1);
return (ret);
}
#endif /* LIBXML_SCHEMAS_ENABLED */