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parserInternals.h
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/* * Summary: internals routines and limits exported by the parser. * Description: this module exports a number of internal parsing routines * they are not really all intended for applications but * can prove useful doing low level processing. * * Copy: See Copyright for the status of this software. * * Author: Daniel Veillard */ #ifndef __XML_PARSER_INTERNALS_H__ #define __XML_PARSER_INTERNALS_H__ #include <libxml/xmlversion.h> #include <libxml/parser.h> #include <libxml/HTMLparser.h> #include <libxml/chvalid.h> #include <libxml/SAX2.h> #ifdef __cplusplus extern "C" { #endif /** * xmlParserMaxDepth: * * arbitrary depth limit for the XML documents that we allow to * process. This is not a limitation of the parser but a safety * boundary feature, use XML_PARSE_HUGE option to override it. */ XMLPUBVAR unsigned int xmlParserMaxDepth; /** * XML_MAX_TEXT_LENGTH: * * Maximum size allowed for a single text node when building a tree. * This is not a limitation of the parser but a safety boundary feature, * use XML_PARSE_HUGE option to override it. * Introduced in 2.9.0 */ #define XML_MAX_TEXT_LENGTH 10000000 /** * XML_MAX_HUGE_LENGTH: * * Maximum size allowed when XML_PARSE_HUGE is set. */ #define XML_MAX_HUGE_LENGTH 1000000000 /** * XML_MAX_NAME_LENGTH: * * Maximum size allowed for a markup identifier. * This is not a limitation of the parser but a safety boundary feature, * use XML_PARSE_HUGE option to override it. * Note that with the use of parsing dictionaries overriding the limit * may result in more runtime memory usage in face of "unfriendly' content * Introduced in 2.9.0 */ #define XML_MAX_NAME_LENGTH 50000 /** * XML_MAX_DICTIONARY_LIMIT: * * Maximum size allowed by the parser for a dictionary by default * This is not a limitation of the parser but a safety boundary feature, * use XML_PARSE_HUGE option to override it. * Introduced in 2.9.0 */ #define XML_MAX_DICTIONARY_LIMIT 10000000 /** * XML_MAX_LOOKUP_LIMIT: * * Maximum size allowed by the parser for ahead lookup * This is an upper boundary enforced by the parser to avoid bad * behaviour on "unfriendly' content * Introduced in 2.9.0 */ #define XML_MAX_LOOKUP_LIMIT 10000000 /** * XML_MAX_NAMELEN: * * Identifiers can be longer, but this will be more costly * at runtime. */ #define XML_MAX_NAMELEN 100 /** * INPUT_CHUNK: * * The parser tries to always have that amount of input ready. * One of the point is providing context when reporting errors. */ #define INPUT_CHUNK 250 /************************************************************************ * * * UNICODE version of the macros. * * * ************************************************************************/ /** * IS_BYTE_CHAR: * @c: an byte value (int) * * Macro to check the following production in the XML spec: * * [2] Char ::= #x9 | #xA | #xD | [#x20...] * any byte character in the accepted range */ #define IS_BYTE_CHAR(c) xmlIsChar_ch(c) /** * IS_CHAR: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * [2] Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] * | [#x10000-#x10FFFF] * any Unicode character, excluding the surrogate blocks, FFFE, and FFFF. */ #define IS_CHAR(c) xmlIsCharQ(c) /** * IS_CHAR_CH: * @c: an xmlChar (usually an unsigned char) * * Behaves like IS_CHAR on single-byte value */ #define IS_CHAR_CH(c) xmlIsChar_ch(c) /** * IS_BLANK: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * [3] S ::= (#x20 | #x9 | #xD | #xA)+ */ #define IS_BLANK(c) xmlIsBlankQ(c) /** * IS_BLANK_CH: * @c: an xmlChar value (normally unsigned char) * * Behaviour same as IS_BLANK */ #define IS_BLANK_CH(c) xmlIsBlank_ch(c) /** * IS_BASECHAR: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * [85] BaseChar ::= ... long list see REC ... */ #define IS_BASECHAR(c) xmlIsBaseCharQ(c) /** * IS_DIGIT: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * [88] Digit ::= ... long list see REC ... */ #define IS_DIGIT(c) xmlIsDigitQ(c) /** * IS_DIGIT_CH: * @c: an xmlChar value (usually an unsigned char) * * Behaves like IS_DIGIT but with a single byte argument */ #define IS_DIGIT_CH(c) xmlIsDigit_ch(c) /** * IS_COMBINING: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * [87] CombiningChar ::= ... long list see REC ... */ #define IS_COMBINING(c) xmlIsCombiningQ(c) /** * IS_COMBINING_CH: * @c: an xmlChar (usually an unsigned char) * * Always false (all combining chars > 0xff) */ #define IS_COMBINING_CH(c) 0 /** * IS_EXTENDER: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * * [89] Extender ::= #x00B7 | #x02D0 | #x02D1 | #x0387 | #x0640 | * #x0E46 | #x0EC6 | #x3005 | [#x3031-#x3035] | * [#x309D-#x309E] | [#x30FC-#x30FE] */ #define IS_EXTENDER(c) xmlIsExtenderQ(c) /** * IS_EXTENDER_CH: * @c: an xmlChar value (usually an unsigned char) * * Behaves like IS_EXTENDER but with a single-byte argument */ #define IS_EXTENDER_CH(c) xmlIsExtender_ch(c) /** * IS_IDEOGRAPHIC: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * * [86] Ideographic ::= [#x4E00-#x9FA5] | #x3007 | [#x3021-#x3029] */ #define IS_IDEOGRAPHIC(c) xmlIsIdeographicQ(c) /** * IS_LETTER: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * * [84] Letter ::= BaseChar | Ideographic */ #define IS_LETTER(c) (IS_BASECHAR(c) || IS_IDEOGRAPHIC(c)) /** * IS_LETTER_CH: * @c: an xmlChar value (normally unsigned char) * * Macro behaves like IS_LETTER, but only check base chars * */ #define IS_LETTER_CH(c) xmlIsBaseChar_ch(c) /** * IS_ASCII_LETTER: * @c: an xmlChar value * * Macro to check [a-zA-Z] * */ #define IS_ASCII_LETTER(c) (((0x41 <= (c)) && ((c) <= 0x5a)) || \ ((0x61 <= (c)) && ((c) <= 0x7a))) /** * IS_ASCII_DIGIT: * @c: an xmlChar value * * Macro to check [0-9] * */ #define IS_ASCII_DIGIT(c) ((0x30 <= (c)) && ((c) <= 0x39)) /** * IS_PUBIDCHAR: * @c: an UNICODE value (int) * * Macro to check the following production in the XML spec: * * * [13] PubidChar ::= #x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%] */ #define IS_PUBIDCHAR(c) xmlIsPubidCharQ(c) /** * IS_PUBIDCHAR_CH: * @c: an xmlChar value (normally unsigned char) * * Same as IS_PUBIDCHAR but for single-byte value */ #define IS_PUBIDCHAR_CH(c) xmlIsPubidChar_ch(c) /** * Global variables used for predefined strings. */ XMLPUBVAR const xmlChar xmlStringText[]; XMLPUBVAR const xmlChar xmlStringTextNoenc[]; XMLPUBVAR const xmlChar xmlStringComment[]; /* * Function to finish the work of the macros where needed. */ XMLPUBFUN int xmlIsLetter (int c); /** * Parser context. */ XMLPUBFUN xmlParserCtxtPtr xmlCreateFileParserCtxt (const char *filename); XMLPUBFUN xmlParserCtxtPtr xmlCreateURLParserCtxt (const char *filename, int options); XMLPUBFUN xmlParserCtxtPtr xmlCreateMemoryParserCtxt(const char *buffer, int size); XMLPUBFUN xmlParserCtxtPtr xmlCreateEntityParserCtxt(const xmlChar *URL, const xmlChar *ID, const xmlChar *base); XMLPUBFUN int xmlSwitchEncoding (xmlParserCtxtPtr ctxt, xmlCharEncoding enc); XMLPUBFUN int xmlSwitchToEncoding (xmlParserCtxtPtr ctxt, xmlCharEncodingHandlerPtr handler); XML_DEPRECATED XMLPUBFUN int xmlSwitchInputEncoding (xmlParserCtxtPtr ctxt, xmlParserInputPtr input, xmlCharEncodingHandlerPtr handler); /** * Input Streams. */ XMLPUBFUN xmlParserInputPtr xmlNewStringInputStream (xmlParserCtxtPtr ctxt, const xmlChar *buffer); XML_DEPRECATED XMLPUBFUN xmlParserInputPtr xmlNewEntityInputStream (xmlParserCtxtPtr ctxt, xmlEntityPtr entity); XMLPUBFUN int xmlPushInput (xmlParserCtxtPtr ctxt, xmlParserInputPtr input); XMLPUBFUN xmlChar xmlPopInput (xmlParserCtxtPtr ctxt); XMLPUBFUN void xmlFreeInputStream (xmlParserInputPtr input); XMLPUBFUN xmlParserInputPtr xmlNewInputFromFile (xmlParserCtxtPtr ctxt, const char *filename); XMLPUBFUN xmlParserInputPtr xmlNewInputStream (xmlParserCtxtPtr ctxt); /** * Namespaces. */ XMLPUBFUN xmlChar * xmlSplitQName (xmlParserCtxtPtr ctxt, const xmlChar *name, xmlChar **prefix); /** * Generic production rules. */ XML_DEPRECATED XMLPUBFUN const xmlChar * xmlParseName (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseNmtoken (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseEntityValue (xmlParserCtxtPtr ctxt, xmlChar **orig); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseAttValue (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseSystemLiteral (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParsePubidLiteral (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseCharData (xmlParserCtxtPtr ctxt, int cdata); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseExternalID (xmlParserCtxtPtr ctxt, xmlChar **publicID, int strict); XML_DEPRECATED XMLPUBFUN void xmlParseComment (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN const xmlChar * xmlParsePITarget (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParsePI (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseNotationDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseEntityDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN int xmlParseDefaultDecl (xmlParserCtxtPtr ctxt, xmlChar **value); XML_DEPRECATED XMLPUBFUN xmlEnumerationPtr xmlParseNotationType (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlEnumerationPtr xmlParseEnumerationType (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN int xmlParseEnumeratedType (xmlParserCtxtPtr ctxt, xmlEnumerationPtr *tree); XML_DEPRECATED XMLPUBFUN int xmlParseAttributeType (xmlParserCtxtPtr ctxt, xmlEnumerationPtr *tree); XML_DEPRECATED XMLPUBFUN void xmlParseAttributeListDecl(xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlElementContentPtr xmlParseElementMixedContentDecl (xmlParserCtxtPtr ctxt, int inputchk); XML_DEPRECATED XMLPUBFUN xmlElementContentPtr xmlParseElementChildrenContentDecl (xmlParserCtxtPtr ctxt, int inputchk); XML_DEPRECATED XMLPUBFUN int xmlParseElementContentDecl(xmlParserCtxtPtr ctxt, const xmlChar *name, xmlElementContentPtr *result); XML_DEPRECATED XMLPUBFUN int xmlParseElementDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseMarkupDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN int xmlParseCharRef (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlEntityPtr xmlParseEntityRef (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseReference (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParsePEReference (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseDocTypeDecl (xmlParserCtxtPtr ctxt); #ifdef LIBXML_SAX1_ENABLED XML_DEPRECATED XMLPUBFUN const xmlChar * xmlParseAttribute (xmlParserCtxtPtr ctxt, xmlChar **value); XML_DEPRECATED XMLPUBFUN const xmlChar * xmlParseStartTag (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseEndTag (xmlParserCtxtPtr ctxt); #endif /* LIBXML_SAX1_ENABLED */ XML_DEPRECATED XMLPUBFUN void xmlParseCDSect (xmlParserCtxtPtr ctxt); XMLPUBFUN void xmlParseContent (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseElement (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseVersionNum (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseVersionInfo (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseEncName (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN const xmlChar * xmlParseEncodingDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN int xmlParseSDDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseXMLDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseTextDecl (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseMisc (xmlParserCtxtPtr ctxt); XMLPUBFUN void xmlParseExternalSubset (xmlParserCtxtPtr ctxt, const xmlChar *ExternalID, const xmlChar *SystemID); /** * XML_SUBSTITUTE_NONE: * * If no entities need to be substituted. */ #define XML_SUBSTITUTE_NONE 0 /** * XML_SUBSTITUTE_REF: * * Whether general entities need to be substituted. */ #define XML_SUBSTITUTE_REF 1 /** * XML_SUBSTITUTE_PEREF: * * Whether parameter entities need to be substituted. */ #define XML_SUBSTITUTE_PEREF 2 /** * XML_SUBSTITUTE_BOTH: * * Both general and parameter entities need to be substituted. */ #define XML_SUBSTITUTE_BOTH 3 XML_DEPRECATED XMLPUBFUN xmlChar * xmlStringDecodeEntities (xmlParserCtxtPtr ctxt, const xmlChar *str, int what, xmlChar end, xmlChar end2, xmlChar end3); XML_DEPRECATED XMLPUBFUN xmlChar * 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. */ XML_DEPRECATED XMLPUBFUN int nodePush (xmlParserCtxtPtr ctxt, xmlNodePtr value); XML_DEPRECATED XMLPUBFUN xmlNodePtr nodePop (xmlParserCtxtPtr ctxt); XMLPUBFUN int inputPush (xmlParserCtxtPtr ctxt, xmlParserInputPtr value); XMLPUBFUN xmlParserInputPtr inputPop (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN const xmlChar * namePop (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN int namePush (xmlParserCtxtPtr ctxt, const xmlChar *value); /* * other commodities shared between parser.c and parserInternals. */ XML_DEPRECATED XMLPUBFUN int xmlSkipBlankChars (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN int xmlStringCurrentChar (xmlParserCtxtPtr ctxt, const xmlChar *cur, int *len); XML_DEPRECATED XMLPUBFUN void xmlParserHandlePEReference(xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN int xmlCheckLanguageID (const xmlChar *lang); /* * Really core function shared with HTML parser. */ XML_DEPRECATED XMLPUBFUN int xmlCurrentChar (xmlParserCtxtPtr ctxt, int *len); XMLPUBFUN int xmlCopyCharMultiByte (xmlChar *out, int val); XMLPUBFUN int xmlCopyChar (int len, xmlChar *out, int val); XML_DEPRECATED XMLPUBFUN void xmlNextChar (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParserInputShrink (xmlParserInputPtr in); /* * 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); XML_DEPRECATED XMLPUBFUN void xmlSetEntityReferenceFunc (xmlEntityReferenceFunc func); XML_DEPRECATED XMLPUBFUN xmlChar * xmlParseQuotedString (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParseNamespace (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlNamespaceParseNSDef (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlScanName (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlNamespaceParseNCName (xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN void xmlParserHandleReference(xmlParserCtxtPtr ctxt); XML_DEPRECATED XMLPUBFUN xmlChar * xmlNamespaceParseQName (xmlParserCtxtPtr ctxt, xmlChar **prefix); /** * Entities */ XML_DEPRECATED XMLPUBFUN xmlChar * xmlDecodeEntities (xmlParserCtxtPtr ctxt, int len, int what, xmlChar end, xmlChar end2, xmlChar end3); XML_DEPRECATED XMLPUBFUN void xmlHandleEntity (xmlParserCtxtPtr ctxt, xmlEntityPtr entity); #endif /* LIBXML_LEGACY_ENABLED */ #ifdef __cplusplus } #endif #endif /* __XML_PARSER_INTERNALS_H__ */