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Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
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
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.
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#define XML_SetProcessingInstructionHandler XML_SetProcessingInstrHandler
#define XML_SetUnparsedEntityDeclHandler XML_SetUnparsedEntDeclHandler
#define XML_SetStartNamespaceDeclHandler XML_SetStartNamespcDeclHandler
#define XML_SetExternalEntityRefHandlerArg XML_SetExternalEntRefHandlerArg
#include "expat_external.h"
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:
#define XML_STATUS_ERROR 0
Otherwise, the #define hackery is quite ugly and would have been
#define XML_STATUS_ERROR XML_STATUS_ERROR
#define XML_STATUS_OK XML_STATUS_OK
#define XML_STATUS_SUSPENDED XML_STATUS_SUSPENDED
XML_ERROR_UNCLOSED_TOKEN,
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_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,
XML_ERROR_UNBOUND_PREFIX,
XML_ERROR_UNDECLARING_PREFIX,
XML_ERROR_RESERVED_PREFIX_XML,
XML_ERROR_RESERVED_PREFIX_XMLNS,
XML_ERROR_RESERVED_NAMESPACE_URI,
XML_ERROR_INVALID_ARGUMENT
/* 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
The EMPTY, ANY, and MIXED types will only occur at top level.
typedef struct XML_cp XML_Content;
enum XML_Content_Type type;
enum XML_Content_Quant quant;
unsigned int numchildren;
/* This is called for an element declaration. See above for
description of the model argument. It's the caller's responsibility
to free model when finished with it.
typedef void (XMLCALL *XML_ElementDeclHandler) (void *userData,
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) (
const XML_Char *att_type,
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 *encoding,
XML_SetXmlDeclHandler(XML_Parser parser,
XML_XmlDeclHandler xmldecl);
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.
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).
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
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 disproportionatly 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.
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,
typedef void (XMLCALL *XML_EndElementHandler) (void *userData,
/* s is not 0 terminated. */
typedef void (XMLCALL *XML_CharacterDataHandler) (void *userData,
/* target and data are 0 terminated */
typedef void (XMLCALL *XML_ProcessingInstructionHandler) (
/* data is 0 terminated */
typedef void (XMLCALL *XML_CommentHandler) (void *userData,
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
typedef void (XMLCALL *XML_DefaultHandler) (void *userData,
/* This is called for the start of the DOCTYPE declaration, before
any DTD or internal subset is parsed.
typedef void (XMLCALL *XML_StartDoctypeDeclHandler) (
const XML_Char *doctypeName,
int has_internal_subset);
/* This is called for the start of the DOCTYPE declaration when the
closing > is encountered, but after processing any external
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
For internal entities (<!ENTITY foo "bar">), value will
be non-NULL and systemId, publicID, and notationName will be NULL.
The value string is NOT nul-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) (
const XML_Char *entityName,
const XML_Char *systemId,
const XML_Char *publicId,
const XML_Char *notationName);
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) (
const XML_Char *entityName,
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) (
const XML_Char *notationName,
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) (
typedef void (XMLCALL *XML_EndNamespaceDeclHandler) (
/* 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
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 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,
typedef int (XMLCALL *XML_ExternalEntityRefHandler) (
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) (
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
The map[b] member gives information about byte sequences whose
If map[b] is c where c is >= 0, then b by itself encodes the
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
It is recommended that you Edit text format, this type of Fix handles quite a lot in one request
