| # A parser for XML, using the derived class as static DTD. |
| # Author: Sjoerd Mullender. |
| |
| import re |
| import string |
| |
| |
| version = '0.1' |
| |
| # Regular expressions used for parsing |
| |
| _S = '[ \t\r\n]+' # white space |
| _opS = '[ \t\r\n]*' # optional white space |
| _Name = '[a-zA-Z_:][-a-zA-Z0-9._:]*' # valid XML name |
| _QStr = "(?:'[^']*'|\"[^\"]*\")" # quoted XML string |
| illegal = re.compile('[^\t\r\n -\176\240-\377]') # illegal chars in content |
| interesting = re.compile('[]&<]') |
| |
| amp = re.compile('&') |
| ref = re.compile('&(' + _Name + '|#[0-9]+|#x[0-9a-fA-F]+)[^-a-zA-Z0-9._:]') |
| entityref = re.compile('&(?P<name>' + _Name + ')[^-a-zA-Z0-9._:]') |
| charref = re.compile('&#(?P<char>[0-9]+[^0-9]|x[0-9a-fA-F]+[^0-9a-fA-F])') |
| space = re.compile(_S + '$') |
| newline = re.compile('\n') |
| |
| attrfind = re.compile( |
| _S + '(?P<name>' + _Name + ')' |
| '(' + _opS + '=' + _opS + |
| '(?P<value>'+_QStr+'|[-a-zA-Z0-9.:+*%?!()_#=~]+))?') |
| starttagopen = re.compile('<' + _Name) |
| starttagend = re.compile(_opS + '(?P<slash>/?)>') |
| starttagmatch = re.compile('<(?P<tagname>'+_Name+')' |
| '(?P<attrs>(?:'+attrfind.pattern+')*)'+ |
| starttagend.pattern) |
| endtagopen = re.compile('</') |
| endbracket = re.compile(_opS + '>') |
| endbracketfind = re.compile('(?:[^>\'"]|'+_QStr+')*>') |
| tagfind = re.compile(_Name) |
| cdataopen = re.compile(r'<!\[CDATA\[') |
| cdataclose = re.compile(r'\]\]>') |
| # this matches one of the following: |
| # SYSTEM SystemLiteral |
| # PUBLIC PubidLiteral SystemLiteral |
| _SystemLiteral = '(?P<%s>'+_QStr+')' |
| _PublicLiteral = '(?P<%s>"[-\'()+,./:=?;!*#@$_%% \n\ra-zA-Z0-9]*"|' \ |
| "'[-()+,./:=?;!*#@$_%% \n\ra-zA-Z0-9]*')" |
| _ExternalId = '(?:SYSTEM|' \ |
| 'PUBLIC'+_S+_PublicLiteral%'pubid'+ \ |
| ')'+_S+_SystemLiteral%'syslit' |
| doctype = re.compile('<!DOCTYPE'+_S+'(?P<name>'+_Name+')' |
| '(?:'+_S+_ExternalId+')?'+_opS) |
| xmldecl = re.compile('<\?xml'+_S+ |
| 'version'+_opS+'='+_opS+'(?P<version>'+_QStr+')'+ |
| '(?:'+_S+'encoding'+_opS+'='+_opS+ |
| "(?P<encoding>'[A-Za-z][-A-Za-z0-9._]*'|" |
| '"[A-Za-z][-A-Za-z0-9._]*"))?' |
| '(?:'+_S+'standalone'+_opS+'='+_opS+ |
| '(?P<standalone>\'(?:yes|no)\'|"(?:yes|no)"))?'+ |
| _opS+'\?>') |
| procopen = re.compile(r'<\?(?P<proc>' + _Name + ')' + _opS) |
| procclose = re.compile(_opS + r'\?>') |
| commentopen = re.compile('<!--') |
| commentclose = re.compile('-->') |
| doubledash = re.compile('--') |
| attrtrans = string.maketrans(' \r\n\t', ' ') |
| |
| |
| # XML parser base class -- find tags and call handler functions. |
| # Usage: p = XMLParser(); p.feed(data); ...; p.close(). |
| # The dtd is defined by deriving a class which defines methods with |
| # special names to handle tags: start_foo and end_foo to handle <foo> |
| # and </foo>, respectively. The data between tags is passed to the |
| # parser by calling self.handle_data() with some data as argument (the |
| # data may be split up in arbutrary chunks). Entity references are |
| # passed by calling self.handle_entityref() with the entity reference |
| # as argument. |
| |
| class XMLParser: |
| |
| # Interface -- initialize and reset this instance |
| def __init__(self, verbose=0): |
| self.verbose = verbose |
| self.reset() |
| |
| # Interface -- reset this instance. Loses all unprocessed data |
| def reset(self): |
| self.rawdata = '' |
| self.stack = [] |
| self.nomoretags = 0 |
| self.literal = 0 |
| self.lineno = 1 |
| self.__at_start = 1 |
| self.__seen_doctype = None |
| self.__seen_starttag = 0 |
| |
| # For derived classes only -- enter literal mode (CDATA) till EOF |
| def setnomoretags(self): |
| self.nomoretags = self.literal = 1 |
| |
| # For derived classes only -- enter literal mode (CDATA) |
| def setliteral(self, *args): |
| self.literal = 1 |
| |
| # Interface -- feed some data to the parser. Call this as |
| # often as you want, with as little or as much text as you |
| # want (may include '\n'). (This just saves the text, all the |
| # processing is done by goahead().) |
| def feed(self, data): |
| self.rawdata = self.rawdata + data |
| self.goahead(0) |
| |
| # Interface -- handle the remaining data |
| def close(self): |
| self.goahead(1) |
| |
| # Interface -- translate references |
| def translate_references(self, data, all = 1): |
| i = 0 |
| while 1: |
| res = amp.search(data, i) |
| if res is None: |
| return data |
| res = ref.match(data, res.start(0)) |
| if res is None: |
| self.syntax_error("bogus `&'") |
| i =i+1 |
| continue |
| i = res.end(0) |
| if data[i - 1] != ';': |
| self.syntax_error("`;' missing after entity/char reference") |
| i = i-1 |
| str = res.group(1) |
| pre = data[:res.start(0)] |
| post = data[i:] |
| if str[0] == '#': |
| if str[1] == 'x': |
| str = chr(string.atoi(str[2:], 16)) |
| else: |
| str = chr(string.atoi(str[1:])) |
| data = pre + str + post |
| i = res.start(0)+len(str) |
| elif all: |
| if self.entitydefs.has_key(str): |
| data = pre + self.entitydefs[str] + post |
| i = res.start(0) # rescan substituted text |
| else: |
| self.syntax_error('reference to unknown entity') |
| # can't do it, so keep the entity ref in |
| data = pre + '&' + str + ';' + post |
| i = res.start(0) + len(str) + 2 |
| else: |
| # just translating character references |
| pass # i is already postioned correctly |
| |
| # Internal -- handle data as far as reasonable. May leave state |
| # and data to be processed by a subsequent call. If 'end' is |
| # true, force handling all data as if followed by EOF marker. |
| def goahead(self, end): |
| rawdata = self.rawdata |
| i = 0 |
| n = len(rawdata) |
| while i < n: |
| if i > 0: |
| self.__at_start = 0 |
| if self.nomoretags: |
| data = rawdata[i:n] |
| self.handle_data(data) |
| self.lineno = self.lineno + string.count(data, '\n') |
| i = n |
| break |
| res = interesting.search(rawdata, i) |
| if res: |
| j = res.start(0) |
| else: |
| j = n |
| if i < j: |
| if self.__at_start: |
| self.syntax_error('illegal data at start of file') |
| self.__at_start = 0 |
| data = rawdata[i:j] |
| if not self.stack and space.match(data) is None: |
| self.syntax_error('data not in content') |
| if illegal.search(data): |
| self.syntax_error('illegal character in content') |
| self.handle_data(data) |
| self.lineno = self.lineno + string.count(data, '\n') |
| i = j |
| if i == n: break |
| if rawdata[i] == '<': |
| if starttagopen.match(rawdata, i): |
| if self.literal: |
| data = rawdata[i] |
| self.handle_data(data) |
| self.lineno = self.lineno + string.count(data, '\n') |
| i = i+1 |
| continue |
| k = self.parse_starttag(i) |
| if k < 0: break |
| self.__seen_starttag = 1 |
| self.lineno = self.lineno + string.count(rawdata[i:k], '\n') |
| i = k |
| continue |
| if endtagopen.match(rawdata, i): |
| k = self.parse_endtag(i) |
| if k < 0: break |
| self.lineno = self.lineno + string.count(rawdata[i:k], '\n') |
| i = k |
| self.literal = 0 |
| continue |
| if commentopen.match(rawdata, i): |
| if self.literal: |
| data = rawdata[i] |
| self.handle_data(data) |
| self.lineno = self.lineno + string.count(data, '\n') |
| i = i+1 |
| continue |
| k = self.parse_comment(i) |
| if k < 0: break |
| self.lineno = self.lineno + string.count(rawdata[i:k], '\n') |
| i = k |
| continue |
| if cdataopen.match(rawdata, i): |
| k = self.parse_cdata(i) |
| if k < 0: break |
| self.lineno = self.lineno + string.count(rawdata[i:i], '\n') |
| i = k |
| continue |
| res = xmldecl.match(rawdata, i) |
| if res: |
| if not self.__at_start: |
| self.syntax_error("<?xml?> declaration not at start of document") |
| version, encoding, standalone = res.group('version', |
| 'encoding', |
| 'standalone') |
| if version[1:-1] != '1.0': |
| raise RuntimeError, 'only XML version 1.0 supported' |
| if encoding: encoding = encoding[1:-1] |
| if standalone: standalone = standalone[1:-1] |
| self.handle_xml(encoding, standalone) |
| i = res.end(0) |
| continue |
| res = procopen.match(rawdata, i) |
| if res: |
| k = self.parse_proc(i) |
| if k < 0: break |
| self.lineno = self.lineno + string.count(rawdata[i:k], '\n') |
| i = k |
| continue |
| res = doctype.match(rawdata, i) |
| if res: |
| if self.literal: |
| data = rawdata[i] |
| self.handle_data(data) |
| self.lineno = self.lineno + string.count(data, '\n') |
| i = i+1 |
| continue |
| if self.__seen_doctype: |
| self.syntax_error('multiple DOCTYPE elements') |
| if self.__seen_starttag: |
| self.syntax_error('DOCTYPE not at beginning of document') |
| k = self.parse_doctype(res) |
| if k < 0: break |
| self.__seen_doctype = res.group('name') |
| self.lineno = self.lineno + string.count(rawdata[i:k], '\n') |
| i = k |
| continue |
| elif rawdata[i] == '&': |
| res = charref.match(rawdata, i) |
| if res is not None: |
| i = res.end(0) |
| if rawdata[i-1] != ';': |
| self.syntax_error("`;' missing in charref") |
| i = i-1 |
| if not self.stack: |
| self.syntax_error('data not in content') |
| self.handle_charref(res.group('char')[:-1]) |
| self.lineno = self.lineno + string.count(res.group(0), '\n') |
| continue |
| res = entityref.match(rawdata, i) |
| if res is not None: |
| i = res.end(0) |
| if rawdata[i-1] != ';': |
| self.syntax_error("`;' missing in entityref") |
| i = i-1 |
| name = res.group('name') |
| if self.entitydefs.has_key(name): |
| self.rawdata = rawdata = rawdata[:res.start(0)] + self.entitydefs[name] + rawdata[i:] |
| n = len(rawdata) |
| i = res.start(0) |
| else: |
| self.syntax_error('reference to unknown entity') |
| self.unknown_entityref(name) |
| self.lineno = self.lineno + string.count(res.group(0), '\n') |
| continue |
| elif rawdata[i] == ']': |
| if n-i < 3: |
| break |
| if cdataclose.match(rawdata, i): |
| self.syntax_error("bogus `]]>'") |
| self.handle_data(rawdata[i]) |
| i = i+1 |
| continue |
| else: |
| raise RuntimeError, 'neither < nor & ??' |
| # We get here only if incomplete matches but |
| # nothing else |
| break |
| # end while |
| if i > 0: |
| self.__at_start = 0 |
| if end and i < n: |
| data = rawdata[i] |
| self.syntax_error("bogus `%s'" % data) |
| if illegal.search(data): |
| self.syntax_error('illegal character in content') |
| self.handle_data(data) |
| self.lineno = self.lineno + string.count(data, '\n') |
| self.rawdata = rawdata[i+1:] |
| return self.goahead(end) |
| self.rawdata = rawdata[i:] |
| if end: |
| if not self.__seen_starttag: |
| self.syntax_error('no elements in file') |
| if self.stack: |
| self.syntax_error('missing end tags') |
| while self.stack: |
| self.finish_endtag(self.stack[-1]) |
| |
| # Internal -- parse comment, return length or -1 if not terminated |
| def parse_comment(self, i): |
| rawdata = self.rawdata |
| if rawdata[i:i+4] <> '<!--': |
| raise RuntimeError, 'unexpected call to handle_comment' |
| res = commentclose.search(rawdata, i+4) |
| if res is None: |
| return -1 |
| if doubledash.search(rawdata, i+4, res.start(0)): |
| self.syntax_error("`--' inside comment") |
| if rawdata[res.start(0)-1] == '-': |
| self.syntax_error('comment cannot end in three dashes') |
| if illegal.search(rawdata, i+4, res.start(0)): |
| self.syntax_error('illegal character in comment') |
| self.handle_comment(rawdata[i+4: res.start(0)]) |
| return res.end(0) |
| |
| # Internal -- handle DOCTYPE tag, return length or -1 if not terminated |
| def parse_doctype(self, res): |
| rawdata = self.rawdata |
| n = len(rawdata) |
| name = res.group('name') |
| pubid, syslit = res.group('pubid', 'syslit') |
| if pubid is not None: |
| pubid = pubid[1:-1] # remove quotes |
| pubid = string.join(string.split(pubid)) # normalize |
| if syslit is not None: syslit = syslit[1:-1] # remove quotes |
| j = k = res.end(0) |
| if k >= n: |
| return -1 |
| if rawdata[k] == '[': |
| level = 0 |
| k = k+1 |
| dq = sq = 0 |
| while k < n: |
| c = rawdata[k] |
| if not sq and c == '"': |
| dq = not dq |
| elif not dq and c == "'": |
| sq = not sq |
| elif sq or dq: |
| pass |
| elif level <= 0 and c == ']': |
| res = endbracket.match(rawdata, k+1) |
| if res is None: |
| return -1 |
| self.handle_doctype(name, pubid, syslit, rawdata[j+1:k]) |
| return res.end(0) |
| elif c == '<': |
| level = level + 1 |
| elif c == '>': |
| level = level - 1 |
| if level < 0: |
| self.syntax_error("bogus `>' in DOCTYPE") |
| k = k+1 |
| res = endbracketfind.match(rawdata, k) |
| if res is None: |
| return -1 |
| if endbracket.match(rawdata, k) is None: |
| self.syntax_error('garbage in DOCTYPE') |
| self.handle_doctype(name, pubid, syslit, None) |
| return res.end(0) |
| |
| # Internal -- handle CDATA tag, return length or -1 if not terminated |
| def parse_cdata(self, i): |
| rawdata = self.rawdata |
| if rawdata[i:i+9] <> '<![CDATA[': |
| raise RuntimeError, 'unexpected call to parse_cdata' |
| res = cdataclose.search(rawdata, i+9) |
| if res is None: |
| return -1 |
| if illegal.search(rawdata, i+9, res.start(0)): |
| self.syntax_error('illegal character in CDATA') |
| if not self.stack: |
| self.syntax_error('CDATA not in content') |
| self.handle_cdata(rawdata[i+9:res.start(0)]) |
| return res.end(0) |
| |
| __xml_attributes = {'version': '1.0', 'standalone': 'no', 'encoding': None} |
| # Internal -- handle a processing instruction tag |
| def parse_proc(self, i): |
| rawdata = self.rawdata |
| end = procclose.search(rawdata, i) |
| if end is None: |
| return -1 |
| j = end.start(0) |
| if illegal.search(rawdata, i+2, j): |
| self.syntax_error('illegal character in processing instruction') |
| res = tagfind.match(rawdata, i+2) |
| if res is None: |
| raise RuntimeError, 'unexpected call to parse_proc' |
| k = res.end(0) |
| name = res.group(0) |
| if string.find(string.lower(name), 'xml') >= 0: |
| self.syntax_error('illegal processing instruction target name') |
| self.handle_proc(name, rawdata[k:j]) |
| return end.end(0) |
| |
| # Internal -- parse attributes between i and j |
| def parse_attributes(self, tag, i, j, attributes = None): |
| rawdata = self.rawdata |
| # Now parse the data between i and j into a tag and attrs |
| attrdict = {} |
| try: |
| # convert attributes list to dictionary |
| d = {} |
| for a in attributes: |
| d[a] = None |
| attributes = d |
| except TypeError: |
| pass |
| while i < j: |
| res = attrfind.match(rawdata, i) |
| if res is None: |
| break |
| attrname, attrvalue = res.group('name', 'value') |
| if attrvalue is None: |
| self.syntax_error("no value specified for attribute `%s'" % attrname) |
| attrvalue = attrname |
| elif attrvalue[:1] == "'" == attrvalue[-1:] or \ |
| attrvalue[:1] == '"' == attrvalue[-1:]: |
| attrvalue = attrvalue[1:-1] |
| else: |
| self.syntax_error("attribute `%s' value not quoted" % attrname) |
| if '<' in attrvalue: |
| self.syntax_error("`<' illegal in attribute value") |
| if attributes is not None and not attributes.has_key(attrname): |
| self.syntax_error("unknown attribute `%s' of element `%s'" % |
| (attrname, tag)) |
| if attrdict.has_key(attrname): |
| self.syntax_error("attribute `%s' specified twice" % attrname) |
| attrvalue = string.translate(attrvalue, attrtrans) |
| attrdict[attrname] = self.translate_references(attrvalue) |
| i = res.end(0) |
| if attributes is not None: |
| # fill in with default attributes |
| for key, val in attributes.items(): |
| if val is not None and not attrdict.has_key(key): |
| attrdict[key] = val |
| return attrdict, i |
| |
| # Internal -- handle starttag, return length or -1 if not terminated |
| def parse_starttag(self, i): |
| rawdata = self.rawdata |
| # i points to start of tag |
| end = endbracketfind.match(rawdata, i+1) |
| if end is None: |
| return -1 |
| tag = starttagmatch.match(rawdata, i) |
| if tag is None or tag.end(0) != end.end(0): |
| self.syntax_error('garbage in starttag') |
| return end.end(0) |
| tagname = tag.group('tagname') |
| if not self.__seen_starttag and self.__seen_doctype and \ |
| tagname != self.__seen_doctype: |
| self.syntax_error('starttag does not match DOCTYPE') |
| if self.__seen_starttag and not self.stack: |
| self.syntax_error('multiple elements on top level') |
| if hasattr(self, tagname + '_attributes'): |
| attributes = getattr(self, tagname + '_attributes') |
| else: |
| attributes = None |
| k, j = tag.span('attrs') |
| attrdict, k = self.parse_attributes(tagname, k, j, attributes) |
| self.finish_starttag(tagname, attrdict) |
| if tag.group('slash') == '/': |
| self.finish_endtag(tagname) |
| return tag.end(0) |
| |
| # Internal -- parse endtag |
| def parse_endtag(self, i): |
| rawdata = self.rawdata |
| end = endbracketfind.match(rawdata, i+1) |
| if end is None: |
| return -1 |
| res = tagfind.match(rawdata, i+2) |
| if res is None: |
| self.syntax_error('no name specified in end tag') |
| tag = '' |
| k = i+2 |
| else: |
| tag = res.group(0) |
| k = res.end(0) |
| if endbracket.match(rawdata, k) is None: |
| self.syntax_error('garbage in end tag') |
| self.finish_endtag(tag) |
| return end.end(0) |
| |
| # Internal -- finish processing of start tag |
| # Return -1 for unknown tag, 1 for balanced tag |
| def finish_starttag(self, tag, attrs): |
| self.stack.append(tag) |
| methodname = 'start_' + tag |
| if hasattr(self, methodname): |
| method = getattr(self, methodname) |
| self.handle_starttag(tag, method, attrs) |
| return 1 |
| else: |
| self.unknown_starttag(tag, attrs) |
| return -1 |
| |
| # Internal -- finish processing of end tag |
| def finish_endtag(self, tag): |
| methodname = 'end_' + tag |
| if not tag: |
| self.syntax_error('name-less end tag') |
| found = len(self.stack) - 1 |
| if found < 0: |
| self.unknown_endtag(tag) |
| return |
| else: |
| if tag not in self.stack: |
| self.syntax_error('unopened end tag') |
| if hasattr(self, methodname): |
| method = getattr(self, methodname) |
| self.handle_endtag(tag, method) |
| else: |
| self.unknown_endtag(tag) |
| return |
| found = len(self.stack) |
| for i in range(found): |
| if self.stack[i] == tag: |
| found = i |
| while len(self.stack) > found: |
| if found < len(self.stack) - 1: |
| self.syntax_error('missing close tag for %s' % self.stack[-1]) |
| tag = self.stack[-1] |
| if hasattr(self, methodname): |
| method = getattr(self, methodname) |
| self.handle_endtag(tag, method) |
| else: |
| self.unknown_endtag(tag) |
| del self.stack[-1] |
| |
| # Overridable -- handle xml processing instruction |
| def handle_xml(self, encoding, standalone): |
| pass |
| |
| # Overridable -- handle DOCTYPE |
| def handle_doctype(self, tag, pubid, syslit, data): |
| pass |
| |
| # Overridable -- handle start tag |
| def handle_starttag(self, tag, method, attrs): |
| method(attrs) |
| |
| # Overridable -- handle end tag |
| def handle_endtag(self, tag, method): |
| method() |
| |
| # Example -- handle character reference, no need to override |
| def handle_charref(self, name): |
| try: |
| if name[0] == 'x': |
| n = string.atoi(name[1:], 16) |
| else: |
| n = string.atoi(name) |
| except string.atoi_error: |
| self.unknown_charref(name) |
| return |
| if not 0 <= n <= 255: |
| self.unknown_charref(name) |
| return |
| self.handle_data(chr(n)) |
| |
| # Definition of entities -- derived classes may override |
| entitydefs = {'lt': '<', # must use charref |
| 'gt': '>', |
| 'amp': '&', # must use charref |
| 'quot': '"', |
| 'apos': ''', |
| } |
| |
| # Example -- handle entity reference, no need to override |
| def handle_entityref(self, name): |
| table = self.entitydefs |
| if table.has_key(name): |
| self.handle_data(table[name]) |
| else: |
| self.unknown_entityref(name) |
| return |
| |
| # Example -- handle data, should be overridden |
| def handle_data(self, data): |
| pass |
| |
| # Example -- handle cdata, could be overridden |
| def handle_cdata(self, data): |
| pass |
| |
| # Example -- handle comment, could be overridden |
| def handle_comment(self, data): |
| pass |
| |
| # Example -- handle processing instructions, could be overridden |
| def handle_proc(self, name, data): |
| pass |
| |
| # Example -- handle relatively harmless syntax errors, could be overridden |
| def syntax_error(self, message): |
| raise RuntimeError, 'Syntax error at line %d: %s' % (self.lineno, message) |
| |
| # To be overridden -- handlers for unknown objects |
| def unknown_starttag(self, tag, attrs): pass |
| def unknown_endtag(self, tag): pass |
| def unknown_charref(self, ref): pass |
| def unknown_entityref(self, ref): pass |
| |
| |
| class TestXMLParser(XMLParser): |
| |
| def __init__(self, verbose=0): |
| self.testdata = "" |
| XMLParser.__init__(self, verbose) |
| |
| def handle_xml(self, encoding, standalone): |
| self.flush() |
| print 'xml: encoding =',encoding,'standalone =',standalone |
| |
| def handle_doctype(self, tag, pubid, syslit, data): |
| self.flush() |
| print 'DOCTYPE:',tag, `data` |
| |
| def handle_entity(self, name, strval, pubid, syslit, ndata): |
| self.flush() |
| print 'ENTITY:',`data` |
| |
| def handle_data(self, data): |
| self.testdata = self.testdata + data |
| if len(`self.testdata`) >= 70: |
| self.flush() |
| |
| def flush(self): |
| data = self.testdata |
| if data: |
| self.testdata = "" |
| print 'data:', `data` |
| |
| def handle_cdata(self, data): |
| self.flush() |
| print 'cdata:', `data` |
| |
| def handle_proc(self, name, data): |
| self.flush() |
| print 'processing:',name,`data` |
| |
| def handle_comment(self, data): |
| self.flush() |
| r = `data` |
| if len(r) > 68: |
| r = r[:32] + '...' + r[-32:] |
| print 'comment:', r |
| |
| def syntax_error(self, message): |
| print 'error at line %d:' % self.lineno, message |
| |
| def unknown_starttag(self, tag, attrs): |
| self.flush() |
| if not attrs: |
| print 'start tag: <' + tag + '>' |
| else: |
| print 'start tag: <' + tag, |
| for name, value in attrs.items(): |
| print name + '=' + '"' + value + '"', |
| print '>' |
| |
| def unknown_endtag(self, tag): |
| self.flush() |
| print 'end tag: </' + tag + '>' |
| |
| def unknown_entityref(self, ref): |
| self.flush() |
| print '*** unknown entity ref: &' + ref + ';' |
| |
| def unknown_charref(self, ref): |
| self.flush() |
| print '*** unknown char ref: &#' + ref + ';' |
| |
| def close(self): |
| XMLParser.close(self) |
| self.flush() |
| |
| def test(args = None): |
| import sys |
| |
| if not args: |
| args = sys.argv[1:] |
| |
| if args and args[0] == '-s': |
| args = args[1:] |
| klass = XMLParser |
| else: |
| klass = TestXMLParser |
| |
| if args: |
| file = args[0] |
| else: |
| file = 'test.xml' |
| |
| if file == '-': |
| f = sys.stdin |
| else: |
| try: |
| f = open(file, 'r') |
| except IOError, msg: |
| print file, ":", msg |
| sys.exit(1) |
| |
| data = f.read() |
| if f is not sys.stdin: |
| f.close() |
| |
| x = klass() |
| try: |
| for c in data: |
| x.feed(c) |
| x.close() |
| except RuntimeError, msg: |
| print msg |
| sys.exit(1) |
| |
| |
| if __name__ == '__main__': |
| test() |