645 lines
17 KiB
C
645 lines
17 KiB
C
/*
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* Summary: internals routines and limits exported by the parser.
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* Description: this module exports a number of internal parsing routines
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* they are not really all intended for applications but
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* can prove useful doing low level processing.
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*
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* Copy: See Copyright for the status of this software.
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*
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* Author: Daniel Veillard
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*/
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#ifndef __XML_PARSER_INTERNALS_H__
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#define __XML_PARSER_INTERNALS_H__
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#include <libxml/xmlversion.h>
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#include <libxml/parser.h>
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#include <libxml/HTMLparser.h>
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#include <libxml/chvalid.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* xmlParserMaxDepth:
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*
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* arbitrary depth limit for the XML documents that we allow to
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* process. This is not a limitation of the parser but a safety
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* boundary feature, use XML_PARSE_HUGE option to override it.
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*/
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XMLPUBVAR unsigned int xmlParserMaxDepth;
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/**
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* XML_MAX_TEXT_LENGTH:
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*
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* Maximum size allowed for a single text node when building a tree.
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* This is not a limitation of the parser but a safety boundary feature,
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* use XML_PARSE_HUGE option to override it.
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* Introduced in 2.9.0
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*/
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#define XML_MAX_TEXT_LENGTH 10000000
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/**
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* XML_MAX_NAME_LENGTH:
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*
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* Maximum size allowed for a markup identifier.
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* This is not a limitation of the parser but a safety boundary feature,
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* use XML_PARSE_HUGE option to override it.
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* Note that with the use of parsing dictionaries overriding the limit
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* may result in more runtime memory usage in face of "unfriendly' content
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* Introduced in 2.9.0
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*/
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#define XML_MAX_NAME_LENGTH 50000
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/**
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* XML_MAX_DICTIONARY_LIMIT:
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*
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* Maximum size allowed by the parser for a dictionary by default
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* This is not a limitation of the parser but a safety boundary feature,
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* use XML_PARSE_HUGE option to override it.
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* Introduced in 2.9.0
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*/
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#define XML_MAX_DICTIONARY_LIMIT 10000000
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/**
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* XML_MAX_LOOKUP_LIMIT:
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*
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* Maximum size allowed by the parser for ahead lookup
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* This is an upper boundary enforced by the parser to avoid bad
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* behaviour on "unfriendly' content
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* Introduced in 2.9.0
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*/
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#define XML_MAX_LOOKUP_LIMIT 10000000
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/**
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* XML_MAX_NAMELEN:
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*
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* Identifiers can be longer, but this will be more costly
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* at runtime.
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*/
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#define XML_MAX_NAMELEN 100
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/**
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* INPUT_CHUNK:
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*
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* The parser tries to always have that amount of input ready.
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* One of the point is providing context when reporting errors.
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*/
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#define INPUT_CHUNK 250
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/************************************************************************
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* *
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* UNICODE version of the macros. *
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* *
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************************************************************************/
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/**
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* IS_BYTE_CHAR:
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* @c: an byte value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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* [2] Char ::= #x9 | #xA | #xD | [#x20...]
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* any byte character in the accepted range
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*/
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#define IS_BYTE_CHAR(c) xmlIsChar_ch(c)
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/**
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* IS_CHAR:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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* [2] Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD]
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* | [#x10000-#x10FFFF]
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* any Unicode character, excluding the surrogate blocks, FFFE, and FFFF.
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*/
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#define IS_CHAR(c) xmlIsCharQ(c)
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/**
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* IS_CHAR_CH:
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* @c: an xmlChar (usually an unsigned char)
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*
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* Behaves like IS_CHAR on single-byte value
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*/
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#define IS_CHAR_CH(c) xmlIsChar_ch(c)
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/**
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* IS_BLANK:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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* [3] S ::= (#x20 | #x9 | #xD | #xA)+
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*/
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#define IS_BLANK(c) xmlIsBlankQ(c)
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/**
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* IS_BLANK_CH:
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* @c: an xmlChar value (normally unsigned char)
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*
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* Behaviour same as IS_BLANK
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*/
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#define IS_BLANK_CH(c) xmlIsBlank_ch(c)
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/**
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* IS_BASECHAR:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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* [85] BaseChar ::= ... long list see REC ...
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*/
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#define IS_BASECHAR(c) xmlIsBaseCharQ(c)
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/**
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* IS_DIGIT:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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* [88] Digit ::= ... long list see REC ...
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*/
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#define IS_DIGIT(c) xmlIsDigitQ(c)
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/**
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* IS_DIGIT_CH:
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* @c: an xmlChar value (usually an unsigned char)
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*
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* Behaves like IS_DIGIT but with a single byte argument
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*/
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#define IS_DIGIT_CH(c) xmlIsDigit_ch(c)
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/**
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* IS_COMBINING:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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* [87] CombiningChar ::= ... long list see REC ...
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*/
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#define IS_COMBINING(c) xmlIsCombiningQ(c)
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/**
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* IS_COMBINING_CH:
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* @c: an xmlChar (usually an unsigned char)
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*
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* Always false (all combining chars > 0xff)
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*/
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#define IS_COMBINING_CH(c) 0
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/**
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* IS_EXTENDER:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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*
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* [89] Extender ::= #x00B7 | #x02D0 | #x02D1 | #x0387 | #x0640 |
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* #x0E46 | #x0EC6 | #x3005 | [#x3031-#x3035] |
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* [#x309D-#x309E] | [#x30FC-#x30FE]
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*/
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#define IS_EXTENDER(c) xmlIsExtenderQ(c)
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/**
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* IS_EXTENDER_CH:
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* @c: an xmlChar value (usually an unsigned char)
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*
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* Behaves like IS_EXTENDER but with a single-byte argument
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*/
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#define IS_EXTENDER_CH(c) xmlIsExtender_ch(c)
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/**
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* IS_IDEOGRAPHIC:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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*
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* [86] Ideographic ::= [#x4E00-#x9FA5] | #x3007 | [#x3021-#x3029]
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*/
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#define IS_IDEOGRAPHIC(c) xmlIsIdeographicQ(c)
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/**
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* IS_LETTER:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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*
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* [84] Letter ::= BaseChar | Ideographic
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*/
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#define IS_LETTER(c) (IS_BASECHAR(c) || IS_IDEOGRAPHIC(c))
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/**
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* IS_LETTER_CH:
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* @c: an xmlChar value (normally unsigned char)
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*
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* Macro behaves like IS_LETTER, but only check base chars
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*
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*/
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#define IS_LETTER_CH(c) xmlIsBaseChar_ch(c)
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/**
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* IS_ASCII_LETTER:
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* @c: an xmlChar value
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*
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* Macro to check [a-zA-Z]
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*
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*/
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#define IS_ASCII_LETTER(c) (((0x41 <= (c)) && ((c) <= 0x5a)) || \
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((0x61 <= (c)) && ((c) <= 0x7a)))
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/**
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* IS_ASCII_DIGIT:
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* @c: an xmlChar value
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*
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* Macro to check [0-9]
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*
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*/
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#define IS_ASCII_DIGIT(c) ((0x30 <= (c)) && ((c) <= 0x39))
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/**
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* IS_PUBIDCHAR:
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* @c: an UNICODE value (int)
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*
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* Macro to check the following production in the XML spec:
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*
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*
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* [13] PubidChar ::= #x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%]
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*/
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#define IS_PUBIDCHAR(c) xmlIsPubidCharQ(c)
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/**
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* IS_PUBIDCHAR_CH:
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* @c: an xmlChar value (normally unsigned char)
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*
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* Same as IS_PUBIDCHAR but for single-byte value
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*/
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#define IS_PUBIDCHAR_CH(c) xmlIsPubidChar_ch(c)
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/**
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* SKIP_EOL:
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* @p: and UTF8 string pointer
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*
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* Skips the end of line chars.
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*/
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#define SKIP_EOL(p) \
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if (*(p) == 0x13) { p++ ; if (*(p) == 0x10) p++; } \
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if (*(p) == 0x10) { p++ ; if (*(p) == 0x13) p++; }
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/**
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* MOVETO_ENDTAG:
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* @p: and UTF8 string pointer
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*
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* Skips to the next '>' char.
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*/
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#define MOVETO_ENDTAG(p) \
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while ((*p) && (*(p) != '>')) (p)++
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/**
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* MOVETO_STARTTAG:
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* @p: and UTF8 string pointer
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*
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* Skips to the next '<' char.
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*/
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#define MOVETO_STARTTAG(p) \
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while ((*p) && (*(p) != '<')) (p)++
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/**
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* Global variables used for predefined strings.
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*/
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XMLPUBVAR const xmlChar xmlStringText[];
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XMLPUBVAR const xmlChar xmlStringTextNoenc[];
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XMLPUBVAR const xmlChar xmlStringComment[];
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/*
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* Function to finish the work of the macros where needed.
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*/
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XMLPUBFUN int XMLCALL xmlIsLetter (int c);
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/**
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* Parser context.
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*/
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XMLPUBFUN xmlParserCtxtPtr XMLCALL
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xmlCreateFileParserCtxt (const char *filename);
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XMLPUBFUN xmlParserCtxtPtr XMLCALL
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xmlCreateURLParserCtxt (const char *filename,
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int options);
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XMLPUBFUN xmlParserCtxtPtr XMLCALL
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xmlCreateMemoryParserCtxt(const char *buffer,
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int size);
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XMLPUBFUN xmlParserCtxtPtr XMLCALL
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xmlCreateEntityParserCtxt(const xmlChar *URL,
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const xmlChar *ID,
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const xmlChar *base);
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XMLPUBFUN int XMLCALL
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xmlSwitchEncoding (xmlParserCtxtPtr ctxt,
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xmlCharEncoding enc);
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XMLPUBFUN int XMLCALL
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xmlSwitchToEncoding (xmlParserCtxtPtr ctxt,
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xmlCharEncodingHandlerPtr handler);
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XMLPUBFUN int XMLCALL
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xmlSwitchInputEncoding (xmlParserCtxtPtr ctxt,
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xmlParserInputPtr input,
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xmlCharEncodingHandlerPtr handler);
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#ifdef IN_LIBXML
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/* internal error reporting */
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XMLPUBFUN void XMLCALL
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__xmlErrEncoding (xmlParserCtxtPtr ctxt,
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xmlParserErrors xmlerr,
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const char *msg,
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const xmlChar * str1,
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const xmlChar * str2) LIBXML_ATTR_FORMAT(3,0);
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#endif
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/**
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* Input Streams.
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*/
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XMLPUBFUN xmlParserInputPtr XMLCALL
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xmlNewStringInputStream (xmlParserCtxtPtr ctxt,
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const xmlChar *buffer);
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XMLPUBFUN xmlParserInputPtr XMLCALL
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xmlNewEntityInputStream (xmlParserCtxtPtr ctxt,
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xmlEntityPtr entity);
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XMLPUBFUN int XMLCALL
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xmlPushInput (xmlParserCtxtPtr ctxt,
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xmlParserInputPtr input);
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XMLPUBFUN xmlChar XMLCALL
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xmlPopInput (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlFreeInputStream (xmlParserInputPtr input);
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XMLPUBFUN xmlParserInputPtr XMLCALL
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xmlNewInputFromFile (xmlParserCtxtPtr ctxt,
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const char *filename);
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XMLPUBFUN xmlParserInputPtr XMLCALL
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xmlNewInputStream (xmlParserCtxtPtr ctxt);
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/**
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* Namespaces.
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*/
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XMLPUBFUN xmlChar * XMLCALL
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xmlSplitQName (xmlParserCtxtPtr ctxt,
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const xmlChar *name,
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xmlChar **prefix);
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/**
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* Generic production rules.
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*/
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XMLPUBFUN const xmlChar * XMLCALL
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xmlParseName (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseNmtoken (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseEntityValue (xmlParserCtxtPtr ctxt,
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xmlChar **orig);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseAttValue (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseSystemLiteral (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParsePubidLiteral (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseCharData (xmlParserCtxtPtr ctxt,
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int cdata);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseExternalID (xmlParserCtxtPtr ctxt,
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xmlChar **publicID,
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int strict);
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XMLPUBFUN void XMLCALL
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xmlParseComment (xmlParserCtxtPtr ctxt);
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XMLPUBFUN const xmlChar * XMLCALL
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xmlParsePITarget (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParsePI (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseNotationDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseEntityDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN int XMLCALL
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xmlParseDefaultDecl (xmlParserCtxtPtr ctxt,
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xmlChar **value);
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XMLPUBFUN xmlEnumerationPtr XMLCALL
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xmlParseNotationType (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlEnumerationPtr XMLCALL
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xmlParseEnumerationType (xmlParserCtxtPtr ctxt);
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XMLPUBFUN int XMLCALL
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xmlParseEnumeratedType (xmlParserCtxtPtr ctxt,
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xmlEnumerationPtr *tree);
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XMLPUBFUN int XMLCALL
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xmlParseAttributeType (xmlParserCtxtPtr ctxt,
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xmlEnumerationPtr *tree);
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XMLPUBFUN void XMLCALL
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xmlParseAttributeListDecl(xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlElementContentPtr XMLCALL
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xmlParseElementMixedContentDecl
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(xmlParserCtxtPtr ctxt,
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int inputchk);
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XMLPUBFUN xmlElementContentPtr XMLCALL
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xmlParseElementChildrenContentDecl
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(xmlParserCtxtPtr ctxt,
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int inputchk);
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XMLPUBFUN int XMLCALL
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xmlParseElementContentDecl(xmlParserCtxtPtr ctxt,
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const xmlChar *name,
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xmlElementContentPtr *result);
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XMLPUBFUN int XMLCALL
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xmlParseElementDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseMarkupDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN int XMLCALL
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xmlParseCharRef (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlEntityPtr XMLCALL
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xmlParseEntityRef (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseReference (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParsePEReference (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseDocTypeDecl (xmlParserCtxtPtr ctxt);
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#ifdef LIBXML_SAX1_ENABLED
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XMLPUBFUN const xmlChar * XMLCALL
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xmlParseAttribute (xmlParserCtxtPtr ctxt,
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xmlChar **value);
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XMLPUBFUN const xmlChar * XMLCALL
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xmlParseStartTag (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseEndTag (xmlParserCtxtPtr ctxt);
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#endif /* LIBXML_SAX1_ENABLED */
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XMLPUBFUN void XMLCALL
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xmlParseCDSect (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseContent (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseElement (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseVersionNum (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseVersionInfo (xmlParserCtxtPtr ctxt);
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XMLPUBFUN xmlChar * XMLCALL
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xmlParseEncName (xmlParserCtxtPtr ctxt);
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XMLPUBFUN const xmlChar * XMLCALL
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xmlParseEncodingDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN int XMLCALL
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xmlParseSDDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseXMLDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseTextDecl (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseMisc (xmlParserCtxtPtr ctxt);
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XMLPUBFUN void XMLCALL
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xmlParseExternalSubset (xmlParserCtxtPtr ctxt,
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const xmlChar *ExternalID,
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const xmlChar *SystemID);
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/**
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* XML_SUBSTITUTE_NONE:
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*
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* If no entities need to be substituted.
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*/
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#define XML_SUBSTITUTE_NONE 0
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/**
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* XML_SUBSTITUTE_REF:
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*
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* Whether general entities need to be substituted.
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*/
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#define XML_SUBSTITUTE_REF 1
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/**
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* XML_SUBSTITUTE_PEREF:
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*
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* Whether parameter entities need to be substituted.
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*/
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#define XML_SUBSTITUTE_PEREF 2
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/**
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* XML_SUBSTITUTE_BOTH:
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*
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* Both general and parameter entities need to be substituted.
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*/
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#define XML_SUBSTITUTE_BOTH 3
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XMLPUBFUN xmlChar * XMLCALL
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xmlStringDecodeEntities (xmlParserCtxtPtr ctxt,
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const xmlChar *str,
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int what,
|
|
xmlChar end,
|
|
xmlChar end2,
|
|
xmlChar end3);
|
|
XMLPUBFUN xmlChar * XMLCALL
|
|
xmlStringLenDecodeEntities (xmlParserCtxtPtr ctxt,
|
|
const xmlChar *str,
|
|
int len,
|
|
int what,
|
|
xmlChar end,
|
|
xmlChar end2,
|
|
xmlChar end3);
|
|
|
|
/*
|
|
* Generated by MACROS on top of parser.c c.f. PUSH_AND_POP.
|
|
*/
|
|
XMLPUBFUN int XMLCALL nodePush (xmlParserCtxtPtr ctxt,
|
|
xmlNodePtr value);
|
|
XMLPUBFUN xmlNodePtr XMLCALL nodePop (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN int XMLCALL inputPush (xmlParserCtxtPtr ctxt,
|
|
xmlParserInputPtr value);
|
|
XMLPUBFUN xmlParserInputPtr XMLCALL inputPop (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN const xmlChar * XMLCALL namePop (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN int XMLCALL namePush (xmlParserCtxtPtr ctxt,
|
|
const xmlChar *value);
|
|
|
|
/*
|
|
* other commodities shared between parser.c and parserInternals.
|
|
*/
|
|
XMLPUBFUN int XMLCALL xmlSkipBlankChars (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN int XMLCALL xmlStringCurrentChar (xmlParserCtxtPtr ctxt,
|
|
const xmlChar *cur,
|
|
int *len);
|
|
XMLPUBFUN void XMLCALL xmlParserHandlePEReference(xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN int XMLCALL xmlCheckLanguageID (const xmlChar *lang);
|
|
|
|
/*
|
|
* Really core function shared with HTML parser.
|
|
*/
|
|
XMLPUBFUN int XMLCALL xmlCurrentChar (xmlParserCtxtPtr ctxt,
|
|
int *len);
|
|
XMLPUBFUN int XMLCALL xmlCopyCharMultiByte (xmlChar *out,
|
|
int val);
|
|
XMLPUBFUN int XMLCALL xmlCopyChar (int len,
|
|
xmlChar *out,
|
|
int val);
|
|
XMLPUBFUN void XMLCALL xmlNextChar (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN void XMLCALL xmlParserInputShrink (xmlParserInputPtr in);
|
|
|
|
#ifdef LIBXML_HTML_ENABLED
|
|
/*
|
|
* Actually comes from the HTML parser but launched from the init stuff.
|
|
*/
|
|
XMLPUBFUN void XMLCALL htmlInitAutoClose (void);
|
|
XMLPUBFUN htmlParserCtxtPtr XMLCALL htmlCreateFileParserCtxt(const char *filename,
|
|
const char *encoding);
|
|
#endif
|
|
|
|
/*
|
|
* Specific function to keep track of entities references
|
|
* and used by the XSLT debugger.
|
|
*/
|
|
#ifdef LIBXML_LEGACY_ENABLED
|
|
/**
|
|
* xmlEntityReferenceFunc:
|
|
* @ent: the entity
|
|
* @firstNode: the fist node in the chunk
|
|
* @lastNode: the last nod in the chunk
|
|
*
|
|
* Callback function used when one needs to be able to track back the
|
|
* provenance of a chunk of nodes inherited from an entity replacement.
|
|
*/
|
|
typedef void (*xmlEntityReferenceFunc) (xmlEntityPtr ent,
|
|
xmlNodePtr firstNode,
|
|
xmlNodePtr lastNode);
|
|
|
|
XMLPUBFUN void XMLCALL xmlSetEntityReferenceFunc (xmlEntityReferenceFunc func);
|
|
|
|
XMLPUBFUN xmlChar * XMLCALL
|
|
xmlParseQuotedString (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN void XMLCALL
|
|
xmlParseNamespace (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN xmlChar * XMLCALL
|
|
xmlNamespaceParseNSDef (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN xmlChar * XMLCALL
|
|
xmlScanName (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN xmlChar * XMLCALL
|
|
xmlNamespaceParseNCName (xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN void XMLCALL xmlParserHandleReference(xmlParserCtxtPtr ctxt);
|
|
XMLPUBFUN xmlChar * XMLCALL
|
|
xmlNamespaceParseQName (xmlParserCtxtPtr ctxt,
|
|
xmlChar **prefix);
|
|
/**
|
|
* Entities
|
|
*/
|
|
XMLPUBFUN xmlChar * XMLCALL
|
|
xmlDecodeEntities (xmlParserCtxtPtr ctxt,
|
|
int len,
|
|
int what,
|
|
xmlChar end,
|
|
xmlChar end2,
|
|
xmlChar end3);
|
|
XMLPUBFUN void XMLCALL
|
|
xmlHandleEntity (xmlParserCtxtPtr ctxt,
|
|
xmlEntityPtr entity);
|
|
|
|
#endif /* LIBXML_LEGACY_ENABLED */
|
|
|
|
#ifdef IN_LIBXML
|
|
/*
|
|
* internal only
|
|
*/
|
|
XMLPUBFUN void XMLCALL
|
|
xmlErrMemory (xmlParserCtxtPtr ctxt,
|
|
const char *extra);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* __XML_PARSER_INTERNALS_H__ */
|