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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>
#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_NAME_LENGTH:
*
* Maximum size allowed for a markup identitier
* 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)
/**
* SKIP_EOL:
* @p: and UTF8 string pointer
*
* Skips the end of line chars.
*/
#define SKIP_EOL(p) \
if (*(p) == 0x13) { p++ ; if (*(p) == 0x10) p++; } \
if (*(p) == 0x10) { p++ ; if (*(p) == 0x13) p++; }
/**
* MOVETO_ENDTAG:
* @p: and UTF8 string pointer
*
* Skips to the next '>' char.
*/
#define MOVETO_ENDTAG(p) \
while ((*p) && (*(p) != '>')) (p)++
/**
* MOVETO_STARTTAG:
* @p: and UTF8 string pointer
*
* Skips to the next '<' char.
*/
#define MOVETO_STARTTAG(p) \
while ((*p) && (*(p) != '<')) (p)++
/**
* 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 XMLCALL xmlIsLetter (int c);
/**
* Parser context.
*/
XMLPUBFUN xmlParserCtxtPtr XMLCALL
xmlCreateFileParserCtxt (const char *filename);
XMLPUBFUN xmlParserCtxtPtr XMLCALL
xmlCreateURLParserCtxt (const char *filename,
int options);
XMLPUBFUN xmlParserCtxtPtr XMLCALL
xmlCreateMemoryParserCtxt(const char *buffer,
int size);
XMLPUBFUN xmlParserCtxtPtr XMLCALL
xmlCreateEntityParserCtxt(const xmlChar *URL,
const xmlChar *ID,
const xmlChar *base);
XMLPUBFUN int XMLCALL
xmlSwitchEncoding (xmlParserCtxtPtr ctxt,
xmlCharEncoding enc);
XMLPUBFUN int XMLCALL
xmlSwitchToEncoding (xmlParserCtxtPtr ctxt,
xmlCharEncodingHandlerPtr handler);
XMLPUBFUN int XMLCALL
xmlSwitchInputEncoding (xmlParserCtxtPtr ctxt,
xmlParserInputPtr input,
xmlCharEncodingHandlerPtr handler);
#ifdef IN_LIBXML
/* internal error reporting */
XMLPUBFUN void XMLCALL
__xmlErrEncoding (xmlParserCtxtPtr ctxt,
xmlParserErrors xmlerr,
const char *msg,
const xmlChar * str1,
const xmlChar * str2) LIBXML_ATTR_FORMAT(3,0);
#endif
/**
* Input Streams.
*/
XMLPUBFUN xmlParserInputPtr XMLCALL
xmlNewStringInputStream (xmlParserCtxtPtr ctxt,
const xmlChar *buffer);
XMLPUBFUN xmlParserInputPtr XMLCALL
xmlNewEntityInputStream (xmlParserCtxtPtr ctxt,
xmlEntityPtr entity);
XMLPUBFUN int XMLCALL
xmlPushInput (xmlParserCtxtPtr ctxt,
xmlParserInputPtr input);
XMLPUBFUN xmlChar XMLCALL
xmlPopInput (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlFreeInputStream (xmlParserInputPtr input);
XMLPUBFUN xmlParserInputPtr XMLCALL
xmlNewInputFromFile (xmlParserCtxtPtr ctxt,
const char *filename);
XMLPUBFUN xmlParserInputPtr XMLCALL
xmlNewInputStream (xmlParserCtxtPtr ctxt);
/**
* Namespaces.
*/
XMLPUBFUN xmlChar * XMLCALL
xmlSplitQName (xmlParserCtxtPtr ctxt,
const xmlChar *name,
xmlChar **prefix);
/**
* Generic production rules.
*/
XMLPUBFUN const xmlChar * XMLCALL
xmlParseName (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlChar * XMLCALL
xmlParseNmtoken (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlChar * XMLCALL
xmlParseEntityValue (xmlParserCtxtPtr ctxt,
xmlChar **orig);
XMLPUBFUN xmlChar * XMLCALL
xmlParseAttValue (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlChar * XMLCALL
xmlParseSystemLiteral (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlChar * XMLCALL
xmlParsePubidLiteral (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseCharData (xmlParserCtxtPtr ctxt,
int cdata);
XMLPUBFUN xmlChar * XMLCALL
xmlParseExternalID (xmlParserCtxtPtr ctxt,
xmlChar **publicID,
int strict);
XMLPUBFUN void XMLCALL
xmlParseComment (xmlParserCtxtPtr ctxt);
XMLPUBFUN const xmlChar * XMLCALL
xmlParsePITarget (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParsePI (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseNotationDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseEntityDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN int XMLCALL
xmlParseDefaultDecl (xmlParserCtxtPtr ctxt,
xmlChar **value);
XMLPUBFUN xmlEnumerationPtr XMLCALL
xmlParseNotationType (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlEnumerationPtr XMLCALL
xmlParseEnumerationType (xmlParserCtxtPtr ctxt);
XMLPUBFUN int XMLCALL
xmlParseEnumeratedType (xmlParserCtxtPtr ctxt,
xmlEnumerationPtr *tree);
XMLPUBFUN int XMLCALL
xmlParseAttributeType (xmlParserCtxtPtr ctxt,
xmlEnumerationPtr *tree);
XMLPUBFUN void XMLCALL
xmlParseAttributeListDecl(xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlElementContentPtr XMLCALL
xmlParseElementMixedContentDecl
(xmlParserCtxtPtr ctxt,
int inputchk);
XMLPUBFUN xmlElementContentPtr XMLCALL
xmlParseElementChildrenContentDecl
(xmlParserCtxtPtr ctxt,
int inputchk);
XMLPUBFUN int XMLCALL
xmlParseElementContentDecl(xmlParserCtxtPtr ctxt,
const xmlChar *name,
xmlElementContentPtr *result);
XMLPUBFUN int XMLCALL
xmlParseElementDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseMarkupDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN int XMLCALL
xmlParseCharRef (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlEntityPtr XMLCALL
xmlParseEntityRef (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseReference (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParsePEReference (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseDocTypeDecl (xmlParserCtxtPtr ctxt);
#ifdef LIBXML_SAX1_ENABLED
XMLPUBFUN const xmlChar * XMLCALL
xmlParseAttribute (xmlParserCtxtPtr ctxt,
xmlChar **value);
XMLPUBFUN const xmlChar * XMLCALL
xmlParseStartTag (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseEndTag (xmlParserCtxtPtr ctxt);
#endif /* LIBXML_SAX1_ENABLED */
XMLPUBFUN void XMLCALL
xmlParseCDSect (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseContent (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseElement (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlChar * XMLCALL
xmlParseVersionNum (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlChar * XMLCALL
xmlParseVersionInfo (xmlParserCtxtPtr ctxt);
XMLPUBFUN xmlChar * XMLCALL
xmlParseEncName (xmlParserCtxtPtr ctxt);
XMLPUBFUN const xmlChar * XMLCALL
xmlParseEncodingDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN int XMLCALL
xmlParseSDDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseXMLDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseTextDecl (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
xmlParseMisc (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
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
XMLPUBFUN xmlChar * XMLCALL
xmlStringDecodeEntities (xmlParserCtxtPtr ctxt,
const xmlChar *str,
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__ */