| /* |
| * Secret Labs' Regular Expression Engine |
| * $Id$ |
| * |
| * simple regular expression matching engine |
| * |
| * Copyright (c) 1997-2000 by Secret Labs AB. All rights reserved. |
| * |
| * See the _sre.c file for information on usage and redistribution. |
| */ |
| |
| #ifndef SRE_INCLUDED |
| #define SRE_INCLUDED |
| |
| #include "sre_constants.h" |
| |
| /* size of a code word (must be unsigned short or larger) */ |
| #define SRE_CODE unsigned short |
| |
| typedef struct { |
| PyObject_HEAD |
| PyObject* code; /* link to the code string object */ |
| int groups; |
| PyObject* groupindex; |
| /* compatibility */ |
| PyObject* pattern; /* pattern source (or None) */ |
| int flags; /* flags used when compiling pattern source */ |
| } PatternObject; |
| |
| #define PatternObject_GetCode(o)\ |
| ((void*) PyString_AS_STRING(((PatternObject*)(o))->code)) |
| |
| typedef struct { |
| PyObject_HEAD |
| PyObject* string; /* link to the target string */ |
| PatternObject* pattern; /* link to the regex (pattern) object */ |
| int groups; /* number of groups (start/end marks) */ |
| int mark[2]; |
| } MatchObject; |
| |
| typedef unsigned int (*SRE_TOLOWER_HOOK)(unsigned int ch); |
| |
| typedef struct { |
| /* stack elements */ |
| SRE_CODE* pattern; |
| void* ptr; |
| } SRE_STACK; |
| |
| typedef struct { |
| /* string pointers */ |
| void* ptr; /* current position (also end of current slice) */ |
| void* beginning; /* start of original string */ |
| void* start; /* start of current slice */ |
| void* end; /* end of original string */ |
| /* character size */ |
| int charsize; |
| /* registers */ |
| int lastmark; |
| void* mark[64]; /* FIXME: <fl> should be dynamically allocated! */ |
| /* backtracking stack */ |
| SRE_STACK* stack; |
| int stacksize; |
| int stackbase; |
| /* hooks */ |
| SRE_TOLOWER_HOOK tolower; |
| } SRE_STATE; |
| |
| typedef struct { |
| /* search helper */ |
| PyObject_HEAD |
| PyObject* pattern; |
| PyObject* string; |
| SRE_STATE state; |
| } CursorObject; |
| |
| #endif |