| 1 | * Summary: interface for an HTML 4.0 non-verifying parser
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| 2 | * Description: this module implements an HTML 4.0 non-verifying parser
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| 3 | * with API compatible with the XML parser ones. It should
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| 4 | * be able to parse "real world" HTML, even if severely
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| 5 | * broken from a specification point of view.
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| 6 | *
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| 7 | * Copy: See Copyright for the status of this software.
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| 8 | *
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| 9 | * Author: Patrick Monnerat <[email protected]>, DATASPHERE S.A.
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| 10 |
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| 11 | /if not defined(HTML_PARSER_H__)
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| 12 | /define HTML_PARSER_H__
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| 13 |
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| 14 | /include "libxmlrpg/xmlversion"
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| 15 |
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| 16 | /if defined(LIBXML_HTML_ENABLED)
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| 17 |
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| 18 | /include "libxmlrpg/xmlTypesC"
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| 19 | /include "libxmlrpg/parser"
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| 20 |
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| 21 | * Most of the back-end structures from XML and HTML are shared.
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| 22 |
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| 23 | d htmlParserCtxtPtr...
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| 24 | d s based(######typedef######)
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| 25 | d like(xmlParserCtxtPtr)
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| 26 |
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| 27 | d htmlParserCtxt ds based(htmlParserCtxtPtr)
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| 28 | d likeds(xmlParserCtxt)
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| 29 |
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| 30 | d htmlParserNodeInfoPtr...
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| 31 | d s based(######typedef######)
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| 32 | d like(xmlParserNodeInfoPtr)
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| 33 |
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| 34 | d htmlParserNodeInfo...
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| 35 | d ds based(htmlParserNodeInfoPtr)
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| 36 | d likeds(xmlParserNodeInfo)
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| 37 |
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| 38 | d htmlSAXHandlerPtr...
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| 39 | d s based(######typedef######)
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| 40 | d like(xmlSAXHandlerPtr)
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| 41 |
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| 42 | d htmlSAXHandler ds based(htmlSAXHandlerPtr)
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| 43 | d likeds(xmlSAXHandler)
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| 44 |
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| 45 | d htmlParserInputPtr...
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| 46 | d s based(######typedef######)
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| 47 | d like(xmlParserInputPtr)
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| 48 |
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| 49 | d htmlParserInput...
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| 50 | d ds based(htmlParserInputPtr)
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| 51 | d likeds(xmlParserInput)
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| 52 |
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| 53 | d htmlDocPtr s based(######typedef######)
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| 54 | d like(xmlDocPtr)
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| 55 |
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| 56 | d htmlNodePtr s based(######typedef######)
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| 57 | d like(xmlNodePtr)
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| 58 |
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| 59 | * Internal description of an HTML element, representing HTML 4.01
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| 60 | * and XHTML 1.0 (which share the same structure).
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| 61 |
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| 62 | d htmlElemDescPtr...
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| 63 | d s * based(######typedef######)
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| 64 |
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| 65 | d htmlElemDesc ds based(htmlElemDescPtr)
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| 66 | d align qualified
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| 67 | d name * const char *
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| 68 | d startTag like(xmlCchar) Start tag implied ?
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| 69 | d endTag like(xmlCchar) End tag implied ?
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| 70 | d saveEndTag like(xmlCchar) Save end tag ?
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| 71 | d empty like(xmlCchar) Empty element ?
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| 72 | d depr like(xmlCchar) Deprecated element ?
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| 73 | d dtd like(xmlCchar) Loose DTD/Frameset
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| 74 | d isinline like(xmlCchar) Block 0/inline elem?
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| 75 | d desc * const char *
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| 76 | *
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| 77 | * New fields encapsulating HTML structure
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| 78 | *
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| 79 | * Bugs:
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| 80 | * This is a very limited representation. It fails to tell us when
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| 81 | * an element *requires* subelements (we only have whether they're
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| 82 | * allowed or not), and it doesn't tell us where CDATA and PCDATA
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| 83 | * are allowed. Some element relationships are not fully represented:
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| 84 | * these are flagged with the word MODIFIER
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| 85 | *
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| 86 | d subelts * const char * *
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| 87 | d defaultsubelt * const char *
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| 88 | d attrs_opt * const char * *
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| 89 | d attrs_depr * const char * *
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| 90 | d attrs_req * const char * *
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| 91 |
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| 92 | * Internal description of an HTML entity.
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| 93 |
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| 94 | d htmlEntityDescPtr...
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| 95 | d s * based(######typedef######)
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| 96 |
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| 97 | d htmlEntityDesc...
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| 98 | d ds based(htmlEntityDescPtr)
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| 99 | d align qualified
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| 100 | d value like(xmlCuint)
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| 101 | d name * const char *
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| 102 | d desc * const char *
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| 103 |
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| 104 | * There is only few public functions.
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| 105 |
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| 106 | d htmlTagLookup pr extproc('htmlTagLookup')
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| 107 | d like(htmlElemDescPtr) const
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| 108 | d tag * value options(*string) const xmlChar *
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| 109 |
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| 110 | d htmlEntityLookup...
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| 111 | d pr extproc('htmlEntityLookup')
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| 112 | d like(htmlEntityDescPtr) const
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| 113 | d name * value options(*string) const xmlChar *
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| 114 |
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| 115 | d htmlEntityValueLookup...
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| 116 | d pr extproc('htmlEntityValueLookup')
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| 117 | d like(htmlEntityDescPtr) const
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| 118 | d value value like(xmlCuint)
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| 119 |
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| 120 | d htmlIsAutoClosed...
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| 121 | d pr extproc('htmlIsAutoClosed')
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| 122 | d like(xmlCint)
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| 123 | d doc value like(htmlDocPtr)
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| 124 | d elem value like(htmlNodePtr)
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| 125 |
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| 126 | d htmlAutoCloseTag...
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| 127 | d pr extproc('htmlAutoCloseTag')
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| 128 | d like(xmlCint)
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| 129 | d doc value like(htmlDocPtr)
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| 130 | d name * value options(*string) const xmlChar *
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| 131 | d elem value like(htmlNodePtr)
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| 132 |
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| 133 | d htmlParseEntityRef...
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| 134 | d pr extproc('htmlParseEntityRef')
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| 135 | d like(htmlEntityDescPtr) const
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| 136 | d ctxt value like(htmlParserCtxtPtr)
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| 137 | d str * const xmlChar *(*)
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| 138 |
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| 139 | d htmlParseCharRef...
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| 140 | d pr extproc('htmlParseCharRef')
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| 141 | d like(xmlCint)
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| 142 | d ctxt value like(htmlParserCtxtPtr)
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| 143 |
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| 144 | d htmlParseElement...
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| 145 | d pr extproc('htmlParseElement')
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| 146 | d ctxt value like(htmlParserCtxtPtr)
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| 147 |
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| 148 | d htmlNewParserCtxt...
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| 149 | d pr extproc('htmlNewParserCtxt')
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| 150 | d like(htmlParserCtxtPtr)
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| 151 |
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| 152 | d htmlCreateMemoryParserCtxt...
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| 153 | d pr extproc('htmlCreateMemoryParserCtxt')
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| 154 | d like(htmlParserCtxtPtr)
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| 155 | d buffer * value options(*string) const char *
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| 156 | d size value like(xmlCint)
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| 157 |
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| 158 | d htmlParseDocument...
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| 159 | d pr extproc('htmlParseDocument')
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| 160 | d like(xmlCint)
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| 161 | d ctxt value like(htmlParserCtxtPtr)
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| 162 |
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| 163 | d htmlSAXParseDoc...
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| 164 | d pr extproc('htmlSAXParseDoc')
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| 165 | d like(htmlDocPtr)
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| 166 | d cur * value options(*string) xmlChar *
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| 167 | d encoding * value options(*string) const char *
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| 168 | d sax value like(htmlSAXHandlerPtr)
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| 169 | d userData * value void *
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| 170 |
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| 171 | d htmlParseDoc pr extproc('htmlParseDoc')
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| 172 | d like(htmlDocPtr)
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| 173 | d cur * value options(*string) xmlChar *
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| 174 | d encoding * value options(*string) const char *
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| 175 |
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| 176 | d htmlSAXParseFile...
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| 177 | d pr extproc('htmlSAXParseFile')
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| 178 | d like(htmlDocPtr)
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| 179 | d filename * value options(*string) const char *
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| 180 | d encoding * value options(*string) const char *
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| 181 | d sax value like(htmlSAXHandlerPtr)
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| 182 | d userData * value void *
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| 183 |
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| 184 | d htmlParseFile pr extproc('htmlParseFile')
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| 185 | d like(htmlDocPtr)
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| 186 | d filename * value options(*string) const char *
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| 187 | d encoding * value options(*string) const char *
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| 188 |
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| 189 | d UTF8ToHtml pr extproc('UTF8ToHtml')
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| 190 | d like(xmlCint)
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| 191 | d out 65535 options(*varsize) unsigned char []
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| 192 | d outlen like(xmlCint)
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| 193 | d in * value options(*string) const unsigned char*
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| 194 | d inlen like(xmlCint)
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| 195 |
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| 196 | d htmlEncodeEntities...
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| 197 | d pr extproc('htmlEncodeEntities')
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| 198 | d like(xmlCint)
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| 199 | d out 65535 options(*varsize) unsigned char []
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| 200 | d outlen like(xmlCint)
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| 201 | d in * value options(*string) const unsigned char*
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| 202 | d inlen like(xmlCint)
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| 203 | d quoteChar value like(xmlCint)
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| 204 |
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| 205 | d htmlIsScriptAttribute...
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| 206 | d pr extproc('htmlIsScriptAttribute')
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| 207 | d like(xmlCint)
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| 208 | d name * value options(*string) const xmlChar *
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| 209 |
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| 210 | d htmlHandleOmittedElem...
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| 211 | d pr extproc('htmlHandleOmittedElem')
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| 212 | d like(xmlCint)
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| 213 | d val value like(xmlCint)
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| 214 |
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| 215 | /if defined(LIBXML_PUSH_ENABLED)
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| 216 |
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| 217 | * Interfaces for the Push mode.
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| 218 |
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| 219 | d htmlCreatePushParserCtxt...
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| 220 | d pr extproc('htmlCreatePushParserCtxt')
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| 221 | d like(htmlParserCtxtPtr)
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| 222 | d sax value like(htmlSAXHandlerPtr)
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| 223 | d user_data * value void *
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| 224 | d chunk * value options(*string) const char *
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| 225 | d size value like(xmlCint)
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| 226 | d filename * value options(*string) const char *
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| 227 | d enc value like(xmlCharEncoding)
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| 228 |
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| 229 | d htmlParseChunk pr extproc('htmlParseChunk')
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| 230 | d like(xmlCint)
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| 231 | d ctxt value like(htmlParserCtxtPtr)
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| 232 | d chunk * value options(*string) const char *
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| 233 | d size value like(xmlCint)
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| 234 | d terminate value like(xmlCint)
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| 235 | /endif LIBXML_PUSH_ENABLED
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| 236 |
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| 237 | d htmlFreeParserCtxt...
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| 238 | d pr extproc('htmlFreeParserCtxt')
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| 239 | d ctxt value like(htmlParserCtxtPtr)
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| 240 |
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| 241 | * New set of simpler/more flexible APIs
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| 242 |
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| 243 | * xmlParserOption:
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| 244 | *
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| 245 | * This is the set of XML parser options that can be passed down
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| 246 | * to the xmlReadDoc() and similar calls.
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| 247 |
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| 248 | d htmlParserOption...
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| 249 | d s based(######typedef######)
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| 250 | d like(xmlCenum)
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| 251 | d HTML_PARSE_RECOVER... Relaxed parsing
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| 252 | d c X'00000001'
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| 253 | d HTML_PARSE_NODEFDTD... No default doctype
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| 254 | d c X'00000004'
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| 255 | d HTML_PARSE_NOERROR... No error reports
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| 256 | d c X'00000020'
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| 257 | d HTML_PARSE_NOWARNING... No warning reports
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| 258 | d c X'00000040'
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| 259 | d HTML_PARSE_PEDANTIC... Pedantic err reports
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| 260 | d c X'00000080'
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| 261 | d HTML_PARSE_NOBLANKS... Remove blank nodes
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| 262 | d c X'00000100'
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| 263 | d HTML_PARSE_NONET... Forbid net access
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| 264 | d c X'00000800'
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| 265 | d HTML_PARSE_NOIMPLIED... No implied html/body
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| 266 | d c X'00002000'
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| 267 | d HTML_PARSE_COMPACT... compact small txtnod
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| 268 | d c X'00010000'
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| 269 | d HTML_PARSE_IGNORE_ENC... Ignore encoding hint
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| 270 | d c X'00200000'
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| 271 |
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| 272 | d htmlCtxtReset pr extproc('htmlCtxtReset')
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| 273 | d ctxt value like(htmlParserCtxtPtr)
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| 274 |
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| 275 | d htmlCtxtUseOptions...
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| 276 | d pr extproc('htmlCtxtUseOptions')
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| 277 | d like(xmlCint)
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| 278 | d ctxt value like(htmlParserCtxtPtr)
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| 279 | d options value like(xmlCint)
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| 280 |
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| 281 | d htmlReadDoc pr extproc('htmlReadDoc')
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| 282 | d like(htmlDocPtr)
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| 283 | d cur * value options(*string) const xmlChar *
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| 284 | d URL * value options(*string) const char *
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| 285 | d encoding * value options(*string) const char *
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| 286 | d options value like(xmlCint)
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| 287 |
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| 288 | d htmlReadFile pr extproc('htmlReadFile')
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| 289 | d like(htmlDocPtr)
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| 290 | d URL * value options(*string) const char *
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| 291 | d encoding * value options(*string) const char *
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| 292 | d options value like(xmlCint)
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| 293 |
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| 294 | d htmlReadMemory pr extproc('htmlReadMemory')
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| 295 | d like(htmlDocPtr)
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| 296 | d buffer * value options(*string) const char *
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| 297 | d size value like(xmlCint)
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| 298 | d URL * value options(*string) const char *
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| 299 | d encoding * value options(*string) const char *
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| 300 | d options value like(xmlCint)
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| 301 |
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| 302 | d htmlReadFd pr extproc('htmlReadFd')
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| 303 | d like(htmlDocPtr)
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| 304 | d fd value like(xmlCint)
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| 305 | d URL * value options(*string) const char *
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| 306 | d encoding * value options(*string) const char *
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| 307 | d options value like(xmlCint)
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| 308 |
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| 309 | d htmlReadIO pr extproc('htmlReadIO')
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| 310 | d like(htmlDocPtr)
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| 311 | d ioread value like(xmlInputReadCallback)
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| 312 | d ioclose value like(xmlInputCloseCallback)
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| 313 | d ioctx * value void *
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| 314 | d URL * value options(*string) const char *
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| 315 | d encoding * value options(*string) const char *
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| 316 | d options value like(xmlCint)
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| 317 |
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| 318 | d htmlCtxtReadDoc...
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| 319 | d pr extproc('htmlCtxtReadDoc')
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| 320 | d like(htmlDocPtr)
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| 321 | d ctxt value like(xmlParserCtxtPtr)
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| 322 | d cur * value options(*string) const xmlChar *
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| 323 | d URL * value options(*string) const char *
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| 324 | d encoding * value options(*string) const char *
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| 325 | d options value like(xmlCint)
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| 326 |
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| 327 | d htmlCtxtReadFile...
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| 328 | d pr extproc('htmlCtxtReadFile')
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| 329 | d like(htmlDocPtr)
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| 330 | d ctxt value like(xmlParserCtxtPtr)
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| 331 | d filename * value options(*string) const char *
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| 332 | d encoding * value options(*string) const char *
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| 333 | d options value like(xmlCint)
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| 334 |
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| 335 | d htmlCtxtReadMemory...
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| 336 | d pr extproc('htmlCtxtReadMemory')
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| 337 | d like(htmlDocPtr)
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| 338 | d ctxt value like(xmlParserCtxtPtr)
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| 339 | d buffer * value options(*string) const char *
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| 340 | d size value like(xmlCint)
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| 341 | d URL * value options(*string) const char *
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| 342 | d encoding * value options(*string) const char *
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| 343 | d options value like(xmlCint)
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| 344 |
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| 345 | d htmlCtxtReadFd pr extproc('htmlCtxtReadFd')
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| 346 | d like(htmlDocPtr)
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| 347 | d ctxt value like(xmlParserCtxtPtr)
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| 348 | d fd value like(xmlCint)
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| 349 | d URL * value options(*string) const char *
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| 350 | d encoding * value options(*string) const char *
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| 351 | d options value like(xmlCint)
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| 352 |
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| 353 | d htmlCtxtReadIO pr extproc('htmlCtxtReadIO')
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| 354 | d like(htmlDocPtr)
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| 355 | d ctxt value like(xmlParserCtxtPtr)
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| 356 | d ioread value like(xmlInputReadCallback)
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| 357 | d ioclose value like(xmlInputCloseCallback)
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| 358 | d ioctx * value void *
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| 359 | d URL * value options(*string) const char *
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| 360 | d encoding * value options(*string) const char *
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| 361 | d options value like(xmlCint)
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| 362 |
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| 363 | * Further knowledge of HTML structure
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| 364 |
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| 365 | d htmlStatus s based(######typedef######)
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| 366 | d like(xmlCenum)
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| 367 | d HTML_NA c X'0000' No check at all
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| 368 | d HTML_INVALID c X'0001'
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| 369 | d HTML_DEPRECATED...
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| 370 | d c X'0002'
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| 371 | d HTML_VALID c X'0004'
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| 372 | d HTML_REQUIRED c X'000C' HTML_VALID ored-in
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| 373 |
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| 374 | * Using htmlElemDesc rather than name here, to emphasise the fact
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| 375 | * that otherwise there's a lookup overhead
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| 376 |
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| 377 | d htmlAttrAllowed...
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| 378 | d pr extproc('htmlAttrAllowed')
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| 379 | d like(htmlStatus)
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| 380 | d #param1 value like(htmlElemDescPtr) const
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| 381 | d #param2 * value options(*string) const xmlChar *
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| 382 | d #param3 value like(xmlCint)
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| 383 |
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| 384 | d htmlElementAllowedHere...
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| 385 | d pr extproc('htmlElementAllowedHere')
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| 386 | d like(xmlCint)
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| 387 | d #param1 value like(htmlElemDescPtr) const
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| 388 | d #param2 * value options(*string) const xmlChar *
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| 389 |
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| 390 | d htmlElementStatusHere...
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| 391 | d pr extproc('htmlElementStatusHere')
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| 392 | d like(htmlStatus)
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| 393 | d #param1 value like(htmlElemDescPtr) const
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| 394 | d #param2 value like(htmlElemDescPtr) const
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| 395 |
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| 396 | d htmlNodeStatus pr extproc('htmlNodeStatus')
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| 397 | d like(htmlStatus)
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| 398 | d #param1 value like(htmlNodePtr)
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| 399 | d #param2 value like(xmlCint)
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| 400 |
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| 401 | * C macros implemented as procedures for ILE/RPG support.
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| 402 |
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| 403 | d htmlDefaultSubelement...
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| 404 | d pr * extproc('__htmlDefaultSubelement') const char *
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| 405 | d elt * value const htmlElemDesc *
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| 406 |
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| 407 | d htmlElementAllowedHereDesc...
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| 408 | d pr extproc(
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| 409 | d '__htmlElementAllowedHereDesc')
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| 410 | d like(xmlCint)
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| 411 | d parent * value const htmlElemDesc *
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| 412 | d elt * value const htmlElemDesc *
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| 413 |
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| 414 | d htmlRequiredAttrs...
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| 415 | d pr * extproc('__htmlRequiredAttrs') const char * *
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| 416 | d elt * value const htmlElemDesc *
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| 417 |
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| 418 | /endif LIBXML_HTML_ENABLED
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| 419 | /endif HTML_PARSER_H__
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