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- /*
- __ __ _
- ___\ \/ /_ __ __ _| |_
- / _ \\ /| '_ \ / _` | __|
- | __// \| |_) | (_| | |_
- \___/_/\_\ .__/ \__,_|\__|
- |_| XML parser
- Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
- Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
- Copyright (c) 2000-2005 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
- Copyright (c) 2001-2002 Greg Stein <gstein@users.sourceforge.net>
- Copyright (c) 2002-2016 Karl Waclawek <karl@waclawek.net>
- Copyright (c) 2016-2022 Sebastian Pipping <sebastian@pipping.org>
- Copyright (c) 2016 Cristian Rodríguez <crrodriguez@opensuse.org>
- Copyright (c) 2016 Thomas Beutlich <tc@tbeu.de>
- Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
- Copyright (c) 2022 Thijs Schreijer <thijs@thijsschreijer.nl>
- Licensed under the MIT license:
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to permit
- persons to whom the Software is furnished to do so, subject to the
- following conditions:
- The above copyright notice and this permission notice shall be included
- in all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
- NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
- #ifndef Expat_INCLUDED
- #define Expat_INCLUDED 1
- #include <stdlib.h>
- #include "expat_external.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- struct XML_ParserStruct;
- typedef struct XML_ParserStruct *XML_Parser;
- typedef unsigned char XML_Bool;
- #define XML_TRUE ((XML_Bool)1)
- #define XML_FALSE ((XML_Bool)0)
- /* The XML_Status enum gives the possible return values for several
- API functions. The preprocessor #defines are included so this
- stanza can be added to code that still needs to support older
- versions of Expat 1.95.x:
- #ifndef XML_STATUS_OK
- #define XML_STATUS_OK 1
- #define XML_STATUS_ERROR 0
- #endif
- Otherwise, the #define hackery is quite ugly and would have been
- dropped.
- */
- enum XML_Status {
- XML_STATUS_ERROR = 0,
- #define XML_STATUS_ERROR XML_STATUS_ERROR
- XML_STATUS_OK = 1,
- #define XML_STATUS_OK XML_STATUS_OK
- XML_STATUS_SUSPENDED = 2
- #define XML_STATUS_SUSPENDED XML_STATUS_SUSPENDED
- };
- enum XML_Error {
- XML_ERROR_NONE,
- XML_ERROR_NO_MEMORY,
- XML_ERROR_SYNTAX,
- XML_ERROR_NO_ELEMENTS,
- XML_ERROR_INVALID_TOKEN,
- XML_ERROR_UNCLOSED_TOKEN,
- XML_ERROR_PARTIAL_CHAR,
- XML_ERROR_TAG_MISMATCH,
- XML_ERROR_DUPLICATE_ATTRIBUTE,
- XML_ERROR_JUNK_AFTER_DOC_ELEMENT,
- XML_ERROR_PARAM_ENTITY_REF,
- XML_ERROR_UNDEFINED_ENTITY,
- XML_ERROR_RECURSIVE_ENTITY_REF,
- XML_ERROR_ASYNC_ENTITY,
- XML_ERROR_BAD_CHAR_REF,
- XML_ERROR_BINARY_ENTITY_REF,
- XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF,
- XML_ERROR_MISPLACED_XML_PI,
- XML_ERROR_UNKNOWN_ENCODING,
- XML_ERROR_INCORRECT_ENCODING,
- XML_ERROR_UNCLOSED_CDATA_SECTION,
- XML_ERROR_EXTERNAL_ENTITY_HANDLING,
- XML_ERROR_NOT_STANDALONE,
- XML_ERROR_UNEXPECTED_STATE,
- XML_ERROR_ENTITY_DECLARED_IN_PE,
- XML_ERROR_FEATURE_REQUIRES_XML_DTD,
- XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING,
- /* Added in 1.95.7. */
- XML_ERROR_UNBOUND_PREFIX,
- /* Added in 1.95.8. */
- XML_ERROR_UNDECLARING_PREFIX,
- XML_ERROR_INCOMPLETE_PE,
- XML_ERROR_XML_DECL,
- XML_ERROR_TEXT_DECL,
- XML_ERROR_PUBLICID,
- XML_ERROR_SUSPENDED,
- XML_ERROR_NOT_SUSPENDED,
- XML_ERROR_ABORTED,
- XML_ERROR_FINISHED,
- XML_ERROR_SUSPEND_PE,
- /* Added in 2.0. */
- XML_ERROR_RESERVED_PREFIX_XML,
- XML_ERROR_RESERVED_PREFIX_XMLNS,
- XML_ERROR_RESERVED_NAMESPACE_URI,
- /* Added in 2.2.1. */
- XML_ERROR_INVALID_ARGUMENT,
- /* Added in 2.3.0. */
- XML_ERROR_NO_BUFFER,
- /* Added in 2.4.0. */
- XML_ERROR_AMPLIFICATION_LIMIT_BREACH
- };
- enum XML_Content_Type {
- XML_CTYPE_EMPTY = 1,
- XML_CTYPE_ANY,
- XML_CTYPE_MIXED,
- XML_CTYPE_NAME,
- XML_CTYPE_CHOICE,
- XML_CTYPE_SEQ
- };
- enum XML_Content_Quant {
- XML_CQUANT_NONE,
- XML_CQUANT_OPT,
- XML_CQUANT_REP,
- XML_CQUANT_PLUS
- };
- /* If type == XML_CTYPE_EMPTY or XML_CTYPE_ANY, then quant will be
- XML_CQUANT_NONE, and the other fields will be zero or NULL.
- If type == XML_CTYPE_MIXED, then quant will be NONE or REP and
- numchildren will contain number of elements that may be mixed in
- and children point to an array of XML_Content cells that will be
- all of XML_CTYPE_NAME type with no quantification.
- If type == XML_CTYPE_NAME, then the name points to the name, and
- the numchildren field will be zero and children will be NULL. The
- quant fields indicates any quantifiers placed on the name.
- CHOICE and SEQ will have name NULL, the number of children in
- numchildren and children will point, recursively, to an array
- of XML_Content cells.
- The EMPTY, ANY, and MIXED types will only occur at top level.
- */
- typedef struct XML_cp XML_Content;
- struct XML_cp {
- enum XML_Content_Type type;
- enum XML_Content_Quant quant;
- XML_Char *name;
- unsigned int numchildren;
- XML_Content *children;
- };
- /* This is called for an element declaration. See above for
- description of the model argument. It's the user code's responsibility
- to free model when finished with it. See XML_FreeContentModel.
- There is no need to free the model from the handler, it can be kept
- around and freed at a later stage.
- */
- typedef void(XMLCALL *XML_ElementDeclHandler)(void *userData,
- const XML_Char *name,
- XML_Content *model);
- XMLPARSEAPI(void)
- XML_SetElementDeclHandler(XML_Parser parser, XML_ElementDeclHandler eldecl);
- /* The Attlist declaration handler is called for *each* attribute. So
- a single Attlist declaration with multiple attributes declared will
- generate multiple calls to this handler. The "default" parameter
- may be NULL in the case of the "#IMPLIED" or "#REQUIRED"
- keyword. The "isrequired" parameter will be true and the default
- value will be NULL in the case of "#REQUIRED". If "isrequired" is
- true and default is non-NULL, then this is a "#FIXED" default.
- */
- typedef void(XMLCALL *XML_AttlistDeclHandler)(
- void *userData, const XML_Char *elname, const XML_Char *attname,
- const XML_Char *att_type, const XML_Char *dflt, int isrequired);
- XMLPARSEAPI(void)
- XML_SetAttlistDeclHandler(XML_Parser parser, XML_AttlistDeclHandler attdecl);
- /* The XML declaration handler is called for *both* XML declarations
- and text declarations. The way to distinguish is that the version
- parameter will be NULL for text declarations. The encoding
- parameter may be NULL for XML declarations. The standalone
- parameter will be -1, 0, or 1 indicating respectively that there
- was no standalone parameter in the declaration, that it was given
- as no, or that it was given as yes.
- */
- typedef void(XMLCALL *XML_XmlDeclHandler)(void *userData,
- const XML_Char *version,
- const XML_Char *encoding,
- int standalone);
- XMLPARSEAPI(void)
- XML_SetXmlDeclHandler(XML_Parser parser, XML_XmlDeclHandler xmldecl);
- typedef struct {
- void *(*malloc_fcn)(size_t size);
- void *(*realloc_fcn)(void *ptr, size_t size);
- void (*free_fcn)(void *ptr);
- } XML_Memory_Handling_Suite;
- /* Constructs a new parser; encoding is the encoding specified by the
- external protocol or NULL if there is none specified.
- */
- XMLPARSEAPI(XML_Parser)
- XML_ParserCreate(const XML_Char *encoding);
- /* Constructs a new parser and namespace processor. Element type
- names and attribute names that belong to a namespace will be
- expanded; unprefixed attribute names are never expanded; unprefixed
- element type names are expanded only if there is a default
- namespace. The expanded name is the concatenation of the namespace
- URI, the namespace separator character, and the local part of the
- name. If the namespace separator is '\0' then the namespace URI
- and the local part will be concatenated without any separator.
- It is a programming error to use the separator '\0' with namespace
- triplets (see XML_SetReturnNSTriplet).
- If a namespace separator is chosen that can be part of a URI or
- part of an XML name, splitting an expanded name back into its
- 1, 2 or 3 original parts on application level in the element handler
- may end up vulnerable, so these are advised against; sane choices for
- a namespace separator are e.g. '\n' (line feed) and '|' (pipe).
- Note that Expat does not validate namespace URIs (beyond encoding)
- against RFC 3986 today (and is not required to do so with regard to
- the XML 1.0 namespaces specification) but it may start doing that
- in future releases. Before that, an application using Expat must
- be ready to receive namespace URIs containing non-URI characters.
- */
- XMLPARSEAPI(XML_Parser)
- XML_ParserCreateNS(const XML_Char *encoding, XML_Char namespaceSeparator);
- /* Constructs a new parser using the memory management suite referred to
- by memsuite. If memsuite is NULL, then use the standard library memory
- suite. If namespaceSeparator is non-NULL it creates a parser with
- namespace processing as described above. The character pointed at
- will serve as the namespace separator.
- All further memory operations used for the created parser will come from
- the given suite.
- */
- XMLPARSEAPI(XML_Parser)
- XML_ParserCreate_MM(const XML_Char *encoding,
- const XML_Memory_Handling_Suite *memsuite,
- const XML_Char *namespaceSeparator);
- /* Prepare a parser object to be re-used. This is particularly
- valuable when memory allocation overhead is disproportionately high,
- such as when a large number of small documnents need to be parsed.
- All handlers are cleared from the parser, except for the
- unknownEncodingHandler. The parser's external state is re-initialized
- except for the values of ns and ns_triplets.
- Added in Expat 1.95.3.
- */
- XMLPARSEAPI(XML_Bool)
- XML_ParserReset(XML_Parser parser, const XML_Char *encoding);
- /* atts is array of name/value pairs, terminated by 0;
- names and values are 0 terminated.
- */
- typedef void(XMLCALL *XML_StartElementHandler)(void *userData,
- const XML_Char *name,
- const XML_Char **atts);
- typedef void(XMLCALL *XML_EndElementHandler)(void *userData,
- const XML_Char *name);
- /* s is not 0 terminated. */
- typedef void(XMLCALL *XML_CharacterDataHandler)(void *userData,
- const XML_Char *s, int len);
- /* target and data are 0 terminated */
- typedef void(XMLCALL *XML_ProcessingInstructionHandler)(void *userData,
- const XML_Char *target,
- const XML_Char *data);
- /* data is 0 terminated */
- typedef void(XMLCALL *XML_CommentHandler)(void *userData, const XML_Char *data);
- typedef void(XMLCALL *XML_StartCdataSectionHandler)(void *userData);
- typedef void(XMLCALL *XML_EndCdataSectionHandler)(void *userData);
- /* This is called for any characters in the XML document for which
- there is no applicable handler. This includes both characters that
- are part of markup which is of a kind that is not reported
- (comments, markup declarations), or characters that are part of a
- construct which could be reported but for which no handler has been
- supplied. The characters are passed exactly as they were in the XML
- document except that they will be encoded in UTF-8 or UTF-16.
- Line boundaries are not normalized. Note that a byte order mark
- character is not passed to the default handler. There are no
- guarantees about how characters are divided between calls to the
- default handler: for example, a comment might be split between
- multiple calls.
- */
- typedef void(XMLCALL *XML_DefaultHandler)(void *userData, const XML_Char *s,
- int len);
- /* This is called for the start of the DOCTYPE declaration, before
- any DTD or internal subset is parsed.
- */
- typedef void(XMLCALL *XML_StartDoctypeDeclHandler)(void *userData,
- const XML_Char *doctypeName,
- const XML_Char *sysid,
- const XML_Char *pubid,
- int has_internal_subset);
- /* This is called for the end of the DOCTYPE declaration when the
- closing > is encountered, but after processing any external
- subset.
- */
- typedef void(XMLCALL *XML_EndDoctypeDeclHandler)(void *userData);
- /* This is called for entity declarations. The is_parameter_entity
- argument will be non-zero if the entity is a parameter entity, zero
- otherwise.
- For internal entities (<!ENTITY foo "bar">), value will
- be non-NULL and systemId, publicID, and notationName will be NULL.
- The value string is NOT null-terminated; the length is provided in
- the value_length argument. Since it is legal to have zero-length
- values, do not use this argument to test for internal entities.
- For external entities, value will be NULL and systemId will be
- non-NULL. The publicId argument will be NULL unless a public
- identifier was provided. The notationName argument will have a
- non-NULL value only for unparsed entity declarations.
- Note that is_parameter_entity can't be changed to XML_Bool, since
- that would break binary compatibility.
- */
- typedef void(XMLCALL *XML_EntityDeclHandler)(
- void *userData, const XML_Char *entityName, int is_parameter_entity,
- const XML_Char *value, int value_length, const XML_Char *base,
- const XML_Char *systemId, const XML_Char *publicId,
- const XML_Char *notationName);
- XMLPARSEAPI(void)
- XML_SetEntityDeclHandler(XML_Parser parser, XML_EntityDeclHandler handler);
- /* OBSOLETE -- OBSOLETE -- OBSOLETE
- This handler has been superseded by the EntityDeclHandler above.
- It is provided here for backward compatibility.
- This is called for a declaration of an unparsed (NDATA) entity.
- The base argument is whatever was set by XML_SetBase. The
- entityName, systemId and notationName arguments will never be
- NULL. The other arguments may be.
- */
- typedef void(XMLCALL *XML_UnparsedEntityDeclHandler)(
- void *userData, const XML_Char *entityName, const XML_Char *base,
- const XML_Char *systemId, const XML_Char *publicId,
- const XML_Char *notationName);
- /* This is called for a declaration of notation. The base argument is
- whatever was set by XML_SetBase. The notationName will never be
- NULL. The other arguments can be.
- */
- typedef void(XMLCALL *XML_NotationDeclHandler)(void *userData,
- const XML_Char *notationName,
- const XML_Char *base,
- const XML_Char *systemId,
- const XML_Char *publicId);
- /* When namespace processing is enabled, these are called once for
- each namespace declaration. The call to the start and end element
- handlers occur between the calls to the start and end namespace
- declaration handlers. For an xmlns attribute, prefix will be
- NULL. For an xmlns="" attribute, uri will be NULL.
- */
- typedef void(XMLCALL *XML_StartNamespaceDeclHandler)(void *userData,
- const XML_Char *prefix,
- const XML_Char *uri);
- typedef void(XMLCALL *XML_EndNamespaceDeclHandler)(void *userData,
- const XML_Char *prefix);
- /* This is called if the document is not standalone, that is, it has an
- external subset or a reference to a parameter entity, but does not
- have standalone="yes". If this handler returns XML_STATUS_ERROR,
- then processing will not continue, and the parser will return a
- XML_ERROR_NOT_STANDALONE error.
- If parameter entity parsing is enabled, then in addition to the
- conditions above this handler will only be called if the referenced
- entity was actually read.
- */
- typedef int(XMLCALL *XML_NotStandaloneHandler)(void *userData);
- /* This is called for a reference to an external parsed general
- entity. The referenced entity is not automatically parsed. The
- application can parse it immediately or later using
- XML_ExternalEntityParserCreate.
- The parser argument is the parser parsing the entity containing the
- reference; it can be passed as the parser argument to
- XML_ExternalEntityParserCreate. The systemId argument is the
- system identifier as specified in the entity declaration; it will
- not be NULL.
- The base argument is the system identifier that should be used as
- the base for resolving systemId if systemId was relative; this is
- set by XML_SetBase; it may be NULL.
- The publicId argument is the public identifier as specified in the
- entity declaration, or NULL if none was specified; the whitespace
- in the public identifier will have been normalized as required by
- the XML spec.
- The context argument specifies the parsing context in the format
- expected by the context argument to XML_ExternalEntityParserCreate;
- context is valid only until the handler returns, so if the
- referenced entity is to be parsed later, it must be copied.
- context is NULL only when the entity is a parameter entity.
- The handler should return XML_STATUS_ERROR if processing should not
- continue because of a fatal error in the handling of the external
- entity. In this case the calling parser will return an
- XML_ERROR_EXTERNAL_ENTITY_HANDLING error.
- Note that unlike other handlers the first argument is the parser,
- not userData.
- */
- typedef int(XMLCALL *XML_ExternalEntityRefHandler)(XML_Parser parser,
- const XML_Char *context,
- const XML_Char *base,
- const XML_Char *systemId,
- const XML_Char *publicId);
- /* This is called in two situations:
- 1) An entity reference is encountered for which no declaration
- has been read *and* this is not an error.
- 2) An internal entity reference is read, but not expanded, because
- XML_SetDefaultHandler has been called.
- Note: skipped parameter entities in declarations and skipped general
- entities in attribute values cannot be reported, because
- the event would be out of sync with the reporting of the
- declarations or attribute values
- */
- typedef void(XMLCALL *XML_SkippedEntityHandler)(void *userData,
- const XML_Char *entityName,
- int is_parameter_entity);
- /* This structure is filled in by the XML_UnknownEncodingHandler to
- provide information to the parser about encodings that are unknown
- to the parser.
- The map[b] member gives information about byte sequences whose
- first byte is b.
- If map[b] is c where c is >= 0, then b by itself encodes the
- Unicode scalar value c.
- If map[b] is -1, then the byte sequence is malformed.
- If map[b] is -n, where n >= 2, then b is the first byte of an
- n-byte sequence that encodes a single Unicode scalar value.
- The data member will be passed as the first argument to the convert
- function.
- The convert function is used to convert multibyte sequences; s will
- point to a n-byte sequence where map[(unsigned char)*s] == -n. The
- convert function must return the Unicode scalar value represented
- by this byte sequence or -1 if the byte sequence is malformed.
- The convert function may be NULL if the encoding is a single-byte
- encoding, that is if map[b] >= -1 for all bytes b.
- When the parser is finished with the encoding, then if release is
- not NULL, it will call release passing it the data member; once
- release has been called, the convert function will not be called
- again.
- Expat places certain restrictions on the encodings that are supported
- using this mechanism.
- 1. Every ASCII character that can appear in a well-formed XML document,
- other than the characters
- $@\^`{}~
- must be represented by a single byte, and that byte must be the
- same byte that represents that character in ASCII.
- 2. No character may require more than 4 bytes to encode.
- 3. All characters encoded must have Unicode scalar values <=
- 0xFFFF, (i.e., characters that would be encoded by surrogates in
- UTF-16 are not allowed). Note that this restriction doesn't
- apply to the built-in support for UTF-8 and UTF-16.
- 4. No Unicode character may be encoded by more than one distinct
- sequence of bytes.
- */
- typedef struct {
- int map[256];
- void *data;
- int(XMLCALL *convert)(void *data, const char *s);
- void(XMLCALL *release)(void *data);
- } XML_Encoding;
- /* This is called for an encoding that is unknown to the parser.
- The encodingHandlerData argument is that which was passed as the
- second argument to XML_SetUnknownEncodingHandler.
- The name argument gives the name of the encoding as specified in
- the encoding declaration.
- If the callback can provide information about the encoding, it must
- fill in the XML_Encoding structure, and return XML_STATUS_OK.
- Otherwise it must return XML_STATUS_ERROR.
- If info does not describe a suitable encoding, then the parser will
- return an XML_ERROR_UNKNOWN_ENCODING error.
- */
- typedef int(XMLCALL *XML_UnknownEncodingHandler)(void *encodingHandlerData,
- const XML_Char *name,
- XML_Encoding *info);
- XMLPARSEAPI(void)
- XML_SetElementHandler(XML_Parser parser, XML_StartElementHandler start,
- XML_EndElementHandler end);
- XMLPARSEAPI(void)
- XML_SetStartElementHandler(XML_Parser parser, XML_StartElementHandler handler);
- XMLPARSEAPI(void)
- XML_SetEndElementHandler(XML_Parser parser, XML_EndElementHandler handler);
- XMLPARSEAPI(void)
- XML_SetCharacterDataHandler(XML_Parser parser,
- XML_CharacterDataHandler handler);
- XMLPARSEAPI(void)
- XML_SetProcessingInstructionHandler(XML_Parser parser,
- XML_ProcessingInstructionHandler handler);
- XMLPARSEAPI(void)
- XML_SetCommentHandler(XML_Parser parser, XML_CommentHandler handler);
- XMLPARSEAPI(void)
- XML_SetCdataSectionHandler(XML_Parser parser,
- XML_StartCdataSectionHandler start,
- XML_EndCdataSectionHandler end);
- XMLPARSEAPI(void)
- XML_SetStartCdataSectionHandler(XML_Parser parser,
- XML_StartCdataSectionHandler start);
- XMLPARSEAPI(void)
- XML_SetEndCdataSectionHandler(XML_Parser parser,
- XML_EndCdataSectionHandler end);
- /* This sets the default handler and also inhibits expansion of
- internal entities. These entity references will be passed to the
- default handler, or to the skipped entity handler, if one is set.
- */
- XMLPARSEAPI(void)
- XML_SetDefaultHandler(XML_Parser parser, XML_DefaultHandler handler);
- /* This sets the default handler but does not inhibit expansion of
- internal entities. The entity reference will not be passed to the
- default handler.
- */
- XMLPARSEAPI(void)
- XML_SetDefaultHandlerExpand(XML_Parser parser, XML_DefaultHandler handler);
- XMLPARSEAPI(void)
- XML_SetDoctypeDeclHandler(XML_Parser parser, XML_StartDoctypeDeclHandler start,
- XML_EndDoctypeDeclHandler end);
- XMLPARSEAPI(void)
- XML_SetStartDoctypeDeclHandler(XML_Parser parser,
- XML_StartDoctypeDeclHandler start);
- XMLPARSEAPI(void)
- XML_SetEndDoctypeDeclHandler(XML_Parser parser, XML_EndDoctypeDeclHandler end);
- XMLPARSEAPI(void)
- XML_SetUnparsedEntityDeclHandler(XML_Parser parser,
- XML_UnparsedEntityDeclHandler handler);
- XMLPARSEAPI(void)
- XML_SetNotationDeclHandler(XML_Parser parser, XML_NotationDeclHandler handler);
- XMLPARSEAPI(void)
- XML_SetNamespaceDeclHandler(XML_Parser parser,
- XML_StartNamespaceDeclHandler start,
- XML_EndNamespaceDeclHandler end);
- XMLPARSEAPI(void)
- XML_SetStartNamespaceDeclHandler(XML_Parser parser,
- XML_StartNamespaceDeclHandler start);
- XMLPARSEAPI(void)
- XML_SetEndNamespaceDeclHandler(XML_Parser parser,
- XML_EndNamespaceDeclHandler end);
- XMLPARSEAPI(void)
- XML_SetNotStandaloneHandler(XML_Parser parser,
- XML_NotStandaloneHandler handler);
- XMLPARSEAPI(void)
- XML_SetExternalEntityRefHandler(XML_Parser parser,
- XML_ExternalEntityRefHandler handler);
- /* If a non-NULL value for arg is specified here, then it will be
- passed as the first argument to the external entity ref handler
- instead of the parser object.
- */
- XMLPARSEAPI(void)
- XML_SetExternalEntityRefHandlerArg(XML_Parser parser, void *arg);
- XMLPARSEAPI(void)
- XML_SetSkippedEntityHandler(XML_Parser parser,
- XML_SkippedEntityHandler handler);
- XMLPARSEAPI(void)
- XML_SetUnknownEncodingHandler(XML_Parser parser,
- XML_UnknownEncodingHandler handler,
- void *encodingHandlerData);
- /* This can be called within a handler for a start element, end
- element, processing instruction or character data. It causes the
- corresponding markup to be passed to the default handler.
- */
- XMLPARSEAPI(void)
- XML_DefaultCurrent(XML_Parser parser);
- /* If do_nst is non-zero, and namespace processing is in effect, and
- a name has a prefix (i.e. an explicit namespace qualifier) then
- that name is returned as a triplet in a single string separated by
- the separator character specified when the parser was created: URI
- + sep + local_name + sep + prefix.
- If do_nst is zero, then namespace information is returned in the
- default manner (URI + sep + local_name) whether or not the name
- has a prefix.
- Note: Calling XML_SetReturnNSTriplet after XML_Parse or
- XML_ParseBuffer has no effect.
- */
- XMLPARSEAPI(void)
- XML_SetReturnNSTriplet(XML_Parser parser, int do_nst);
- /* This value is passed as the userData argument to callbacks. */
- XMLPARSEAPI(void)
- XML_SetUserData(XML_Parser parser, void *userData);
- /* Returns the last value set by XML_SetUserData or NULL. */
- #define XML_GetUserData(parser) (*(void **)(parser))
- /* This is equivalent to supplying an encoding argument to
- XML_ParserCreate. On success XML_SetEncoding returns non-zero,
- zero otherwise.
- Note: Calling XML_SetEncoding after XML_Parse or XML_ParseBuffer
- has no effect and returns XML_STATUS_ERROR.
- */
- XMLPARSEAPI(enum XML_Status)
- XML_SetEncoding(XML_Parser parser, const XML_Char *encoding);
- /* If this function is called, then the parser will be passed as the
- first argument to callbacks instead of userData. The userData will
- still be accessible using XML_GetUserData.
- */
- XMLPARSEAPI(void)
- XML_UseParserAsHandlerArg(XML_Parser parser);
- /* If useDTD == XML_TRUE is passed to this function, then the parser
- will assume that there is an external subset, even if none is
- specified in the document. In such a case the parser will call the
- externalEntityRefHandler with a value of NULL for the systemId
- argument (the publicId and context arguments will be NULL as well).
- Note: For the purpose of checking WFC: Entity Declared, passing
- useDTD == XML_TRUE will make the parser behave as if the document
- had a DTD with an external subset.
- Note: If this function is called, then this must be done before
- the first call to XML_Parse or XML_ParseBuffer, since it will
- have no effect after that. Returns
- XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING.
- Note: If the document does not have a DOCTYPE declaration at all,
- then startDoctypeDeclHandler and endDoctypeDeclHandler will not
- be called, despite an external subset being parsed.
- Note: If XML_DTD is not defined when Expat is compiled, returns
- XML_ERROR_FEATURE_REQUIRES_XML_DTD.
- Note: If parser == NULL, returns XML_ERROR_INVALID_ARGUMENT.
- */
- XMLPARSEAPI(enum XML_Error)
- XML_UseForeignDTD(XML_Parser parser, XML_Bool useDTD);
- /* Sets the base to be used for resolving relative URIs in system
- identifiers in declarations. Resolving relative identifiers is
- left to the application: this value will be passed through as the
- base argument to the XML_ExternalEntityRefHandler,
- XML_NotationDeclHandler and XML_UnparsedEntityDeclHandler. The base
- argument will be copied. Returns XML_STATUS_ERROR if out of memory,
- XML_STATUS_OK otherwise.
- */
- XMLPARSEAPI(enum XML_Status)
- XML_SetBase(XML_Parser parser, const XML_Char *base);
- XMLPARSEAPI(const XML_Char *)
- XML_GetBase(XML_Parser parser);
- /* Returns the number of the attribute/value pairs passed in last call
- to the XML_StartElementHandler that were specified in the start-tag
- rather than defaulted. Each attribute/value pair counts as 2; thus
- this corresponds to an index into the atts array passed to the
- XML_StartElementHandler. Returns -1 if parser == NULL.
- */
- XMLPARSEAPI(int)
- XML_GetSpecifiedAttributeCount(XML_Parser parser);
- /* Returns the index of the ID attribute passed in the last call to
- XML_StartElementHandler, or -1 if there is no ID attribute or
- parser == NULL. Each attribute/value pair counts as 2; thus this
- corresponds to an index into the atts array passed to the
- XML_StartElementHandler.
- */
- XMLPARSEAPI(int)
- XML_GetIdAttributeIndex(XML_Parser parser);
- #ifdef XML_ATTR_INFO
- /* Source file byte offsets for the start and end of attribute names and values.
- The value indices are exclusive of surrounding quotes; thus in a UTF-8 source
- file an attribute value of "blah" will yield:
- info->valueEnd - info->valueStart = 4 bytes.
- */
- typedef struct {
- XML_Index nameStart; /* Offset to beginning of the attribute name. */
- XML_Index nameEnd; /* Offset after the attribute name's last byte. */
- XML_Index valueStart; /* Offset to beginning of the attribute value. */
- XML_Index valueEnd; /* Offset after the attribute value's last byte. */
- } XML_AttrInfo;
- /* Returns an array of XML_AttrInfo structures for the attribute/value pairs
- passed in last call to the XML_StartElementHandler that were specified
- in the start-tag rather than defaulted. Each attribute/value pair counts
- as 1; thus the number of entries in the array is
- XML_GetSpecifiedAttributeCount(parser) / 2.
- */
- XMLPARSEAPI(const XML_AttrInfo *)
- XML_GetAttributeInfo(XML_Parser parser);
- #endif
- /* Parses some input. Returns XML_STATUS_ERROR if a fatal error is
- detected. The last call to XML_Parse must have isFinal true; len
- may be zero for this call (or any other).
- Though the return values for these functions has always been
- described as a Boolean value, the implementation, at least for the
- 1.95.x series, has always returned exactly one of the XML_Status
- values.
- */
- XMLPARSEAPI(enum XML_Status)
- XML_Parse(XML_Parser parser, const char *s, int len, int isFinal);
- XMLPARSEAPI(void *)
- XML_GetBuffer(XML_Parser parser, int len);
- XMLPARSEAPI(enum XML_Status)
- XML_ParseBuffer(XML_Parser parser, int len, int isFinal);
- /* Stops parsing, causing XML_Parse() or XML_ParseBuffer() to return.
- Must be called from within a call-back handler, except when aborting
- (resumable = 0) an already suspended parser. Some call-backs may
- still follow because they would otherwise get lost. Examples:
- - endElementHandler() for empty elements when stopped in
- startElementHandler(),
- - endNameSpaceDeclHandler() when stopped in endElementHandler(),
- and possibly others.
- Can be called from most handlers, including DTD related call-backs,
- except when parsing an external parameter entity and resumable != 0.
- Returns XML_STATUS_OK when successful, XML_STATUS_ERROR otherwise.
- Possible error codes:
- - XML_ERROR_SUSPENDED: when suspending an already suspended parser.
- - XML_ERROR_FINISHED: when the parser has already finished.
- - XML_ERROR_SUSPEND_PE: when suspending while parsing an external PE.
- When resumable != 0 (true) then parsing is suspended, that is,
- XML_Parse() and XML_ParseBuffer() return XML_STATUS_SUSPENDED.
- Otherwise, parsing is aborted, that is, XML_Parse() and XML_ParseBuffer()
- return XML_STATUS_ERROR with error code XML_ERROR_ABORTED.
- *Note*:
- This will be applied to the current parser instance only, that is, if
- there is a parent parser then it will continue parsing when the
- externalEntityRefHandler() returns. It is up to the implementation of
- the externalEntityRefHandler() to call XML_StopParser() on the parent
- parser (recursively), if one wants to stop parsing altogether.
- When suspended, parsing can be resumed by calling XML_ResumeParser().
- */
- XMLPARSEAPI(enum XML_Status)
- XML_StopParser(XML_Parser parser, XML_Bool resumable);
- /* Resumes parsing after it has been suspended with XML_StopParser().
- Must not be called from within a handler call-back. Returns same
- status codes as XML_Parse() or XML_ParseBuffer().
- Additional error code XML_ERROR_NOT_SUSPENDED possible.
- *Note*:
- This must be called on the most deeply nested child parser instance
- first, and on its parent parser only after the child parser has finished,
- to be applied recursively until the document entity's parser is restarted.
- That is, the parent parser will not resume by itself and it is up to the
- application to call XML_ResumeParser() on it at the appropriate moment.
- */
- XMLPARSEAPI(enum XML_Status)
- XML_ResumeParser(XML_Parser parser);
- enum XML_Parsing { XML_INITIALIZED, XML_PARSING, XML_FINISHED, XML_SUSPENDED };
- typedef struct {
- enum XML_Parsing parsing;
- XML_Bool finalBuffer;
- } XML_ParsingStatus;
- /* Returns status of parser with respect to being initialized, parsing,
- finished, or suspended and processing the final buffer.
- XXX XML_Parse() and XML_ParseBuffer() should return XML_ParsingStatus,
- XXX with XML_FINISHED_OK or XML_FINISHED_ERROR replacing XML_FINISHED
- */
- XMLPARSEAPI(void)
- XML_GetParsingStatus(XML_Parser parser, XML_ParsingStatus *status);
- /* Creates an XML_Parser object that can parse an external general
- entity; context is a '\0'-terminated string specifying the parse
- context; encoding is a '\0'-terminated string giving the name of
- the externally specified encoding, or NULL if there is no
- externally specified encoding. The context string consists of a
- sequence of tokens separated by formfeeds (\f); a token consisting
- of a name specifies that the general entity of the name is open; a
- token of the form prefix=uri specifies the namespace for a
- particular prefix; a token of the form =uri specifies the default
- namespace. This can be called at any point after the first call to
- an ExternalEntityRefHandler so longer as the parser has not yet
- been freed. The new parser is completely independent and may
- safely be used in a separate thread. The handlers and userData are
- initialized from the parser argument. Returns NULL if out of memory.
- Otherwise returns a new XML_Parser object.
- */
- XMLPARSEAPI(XML_Parser)
- XML_ExternalEntityParserCreate(XML_Parser parser, const XML_Char *context,
- const XML_Char *encoding);
- enum XML_ParamEntityParsing {
- XML_PARAM_ENTITY_PARSING_NEVER,
- XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE,
- XML_PARAM_ENTITY_PARSING_ALWAYS
- };
- /* Controls parsing of parameter entities (including the external DTD
- subset). If parsing of parameter entities is enabled, then
- references to external parameter entities (including the external
- DTD subset) will be passed to the handler set with
- XML_SetExternalEntityRefHandler. The context passed will be 0.
- Unlike external general entities, external parameter entities can
- only be parsed synchronously. If the external parameter entity is
- to be parsed, it must be parsed during the call to the external
- entity ref handler: the complete sequence of
- XML_ExternalEntityParserCreate, XML_Parse/XML_ParseBuffer and
- XML_ParserFree calls must be made during this call. After
- XML_ExternalEntityParserCreate has been called to create the parser
- for the external parameter entity (context must be 0 for this
- call), it is illegal to make any calls on the old parser until
- XML_ParserFree has been called on the newly created parser.
- If the library has been compiled without support for parameter
- entity parsing (ie without XML_DTD being defined), then
- XML_SetParamEntityParsing will return 0 if parsing of parameter
- entities is requested; otherwise it will return non-zero.
- Note: If XML_SetParamEntityParsing is called after XML_Parse or
- XML_ParseBuffer, then it has no effect and will always return 0.
- Note: If parser == NULL, the function will do nothing and return 0.
- */
- XMLPARSEAPI(int)
- XML_SetParamEntityParsing(XML_Parser parser,
- enum XML_ParamEntityParsing parsing);
- /* Sets the hash salt to use for internal hash calculations.
- Helps in preventing DoS attacks based on predicting hash
- function behavior. This must be called before parsing is started.
- Returns 1 if successful, 0 when called after parsing has started.
- Note: If parser == NULL, the function will do nothing and return 0.
- */
- XMLPARSEAPI(int)
- XML_SetHashSalt(XML_Parser parser, unsigned long hash_salt);
- /* If XML_Parse or XML_ParseBuffer have returned XML_STATUS_ERROR, then
- XML_GetErrorCode returns information about the error.
- */
- XMLPARSEAPI(enum XML_Error)
- XML_GetErrorCode(XML_Parser parser);
- /* These functions return information about the current parse
- location. They may be called from any callback called to report
- some parse event; in this case the location is the location of the
- first of the sequence of characters that generated the event. When
- called from callbacks generated by declarations in the document
- prologue, the location identified isn't as neatly defined, but will
- be within the relevant markup. When called outside of the callback
- functions, the position indicated will be just past the last parse
- event (regardless of whether there was an associated callback).
- They may also be called after returning from a call to XML_Parse
- or XML_ParseBuffer. If the return value is XML_STATUS_ERROR then
- the location is the location of the character at which the error
- was detected; otherwise the location is the location of the last
- parse event, as described above.
- Note: XML_GetCurrentLineNumber and XML_GetCurrentColumnNumber
- return 0 to indicate an error.
- Note: XML_GetCurrentByteIndex returns -1 to indicate an error.
- */
- XMLPARSEAPI(XML_Size) XML_GetCurrentLineNumber(XML_Parser parser);
- XMLPARSEAPI(XML_Size) XML_GetCurrentColumnNumber(XML_Parser parser);
- XMLPARSEAPI(XML_Index) XML_GetCurrentByteIndex(XML_Parser parser);
- /* Return the number of bytes in the current event.
- Returns 0 if the event is in an internal entity.
- */
- XMLPARSEAPI(int)
- XML_GetCurrentByteCount(XML_Parser parser);
- /* If XML_CONTEXT_BYTES is defined, returns the input buffer, sets
- the integer pointed to by offset to the offset within this buffer
- of the current parse position, and sets the integer pointed to by size
- to the size of this buffer (the number of input bytes). Otherwise
- returns a NULL pointer. Also returns a NULL pointer if a parse isn't
- active.
- NOTE: The character pointer returned should not be used outside
- the handler that makes the call.
- */
- XMLPARSEAPI(const char *)
- XML_GetInputContext(XML_Parser parser, int *offset, int *size);
- /* For backwards compatibility with previous versions. */
- #define XML_GetErrorLineNumber XML_GetCurrentLineNumber
- #define XML_GetErrorColumnNumber XML_GetCurrentColumnNumber
- #define XML_GetErrorByteIndex XML_GetCurrentByteIndex
- /* Frees the content model passed to the element declaration handler */
- XMLPARSEAPI(void)
- XML_FreeContentModel(XML_Parser parser, XML_Content *model);
- /* Exposing the memory handling functions used in Expat */
- XMLPARSEAPI(void *)
- XML_ATTR_MALLOC
- XML_ATTR_ALLOC_SIZE(2)
- XML_MemMalloc(XML_Parser parser, size_t size);
- XMLPARSEAPI(void *)
- XML_ATTR_ALLOC_SIZE(3)
- XML_MemRealloc(XML_Parser parser, void *ptr, size_t size);
- XMLPARSEAPI(void)
- XML_MemFree(XML_Parser parser, void *ptr);
- /* Frees memory used by the parser. */
- XMLPARSEAPI(void)
- XML_ParserFree(XML_Parser parser);
- /* Returns a string describing the error. */
- XMLPARSEAPI(const XML_LChar *)
- XML_ErrorString(enum XML_Error code);
- /* Return a string containing the version number of this expat */
- XMLPARSEAPI(const XML_LChar *)
- XML_ExpatVersion(void);
- typedef struct {
- int major;
- int minor;
- int micro;
- } XML_Expat_Version;
- /* Return an XML_Expat_Version structure containing numeric version
- number information for this version of expat.
- */
- XMLPARSEAPI(XML_Expat_Version)
- XML_ExpatVersionInfo(void);
- /* Added in Expat 1.95.5. */
- enum XML_FeatureEnum {
- XML_FEATURE_END = 0,
- XML_FEATURE_UNICODE,
- XML_FEATURE_UNICODE_WCHAR_T,
- XML_FEATURE_DTD,
- XML_FEATURE_CONTEXT_BYTES,
- XML_FEATURE_MIN_SIZE,
- XML_FEATURE_SIZEOF_XML_CHAR,
- XML_FEATURE_SIZEOF_XML_LCHAR,
- XML_FEATURE_NS,
- XML_FEATURE_LARGE_SIZE,
- XML_FEATURE_ATTR_INFO,
- /* Added in Expat 2.4.0. */
- XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT,
- XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT
- /* Additional features must be added to the end of this enum. */
- };
- typedef struct {
- enum XML_FeatureEnum feature;
- const XML_LChar *name;
- long int value;
- } XML_Feature;
- XMLPARSEAPI(const XML_Feature *)
- XML_GetFeatureList(void);
- #ifdef XML_DTD
- /* Added in Expat 2.4.0. */
- XMLPARSEAPI(XML_Bool)
- XML_SetBillionLaughsAttackProtectionMaximumAmplification(
- XML_Parser parser, float maximumAmplificationFactor);
- /* Added in Expat 2.4.0. */
- XMLPARSEAPI(XML_Bool)
- XML_SetBillionLaughsAttackProtectionActivationThreshold(
- XML_Parser parser, unsigned long long activationThresholdBytes);
- #endif
- /* Expat follows the semantic versioning convention.
- See http://semver.org.
- */
- #define XML_MAJOR_VERSION 2
- #define XML_MINOR_VERSION 5
- #define XML_MICRO_VERSION 0
- #ifdef __cplusplus
- }
- #endif
- #endif /* not Expat_INCLUDED */
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