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Showing content from http://www.ncbi.nlm.nih.gov/IEB/ToolBox/CPP_DOC/doxyhtml/extension__function_8cpp_source.html below:

NCBI C++ ToolKit: src/misc/xmlwrapp/extension_function.cpp Source File

45 #include <libxml/xpath.h> 46 #include <libxml/xpathInternals.h> 47 #include <libxslt/extensions.h> 48 #include <libxslt/xsltutils.h> 57

xpath_parser_ctxt(

NULL

)

67 return "XPATH_EXPRESSION_OK"

;

69 return "XPATH_NUMBER_ERROR"

;

71 return "XPATH_UNFINISHED_LITERAL_ERROR"

;

73 return "XPATH_START_LITERAL_ERROR"

;

75 return "XPATH_VARIABLE_REF_ERROR"

;

77 return "XPATH_UNDEF_VARIABLE_ERROR"

;

79 return "XPATH_INVALID_PREDICATE_ERROR"

;

81 return "XPATH_EXPR_ERROR"

;

83 return "XPATH_UNCLOSED_ERROR"

;

85 return "XPATH_UNKNOWN_FUNC_ERROR"

;

87 return "XPATH_INVALID_OPERAND"

;

89 return "XPATH_INVALID_TYPE"

;

91 return "XPATH_INVALID_ARITY"

;

93 return "XPATH_INVALID_CTXT_SIZE"

;

95 return "XPATH_INVALID_CTXT_POSITION"

;

97 return "XPATH_MEMORY_ERROR"

;

99 return "XPTR_SYNTAX_ERROR"

;

101 return "XPTR_RESOURCE_ERROR"

;

103 return "XPTR_SUB_RESOURCE_ERROR"

;

105 return "XPATH_UNDEF_PREFIX_ERROR"

;

107 return "XPATH_ENCODING_ERROR"

;

109 return "XPATH_INVALID_CHAR_ERROR"

;

111 return "XPATH_INVALID_CTXT"

;

124

pimpl_(new

impl

::extension_function_impl)

134

pimpl_(new

impl

::extension_function_impl)

150

other.pimpl_ =

NULL

;

156 if

(

this

!= &other) {

160

other.pimpl_ =

NULL

;

169 "out of XSLT context."

);

178 std::string

message(

"Extension function error: "

189 "out of XSLT context."

);

191

xsltTransformContextPtr xslt_ctxt =

193

xsltTransformError(xslt_ctxt, xslt_ctxt->style,

NULL

"%s"

error

);

200 throw xslt::exception

(

"Setting XSLT extension function return value " 201 "out of XSLT context."

);

203

xmlXPathObjectPtr

object

204 reinterpret_cast<

xmlXPathObjectPtr

>

(ret_val.

get_object

());

205 if

(

object

NULL

)

209

xsltTransformContextPtr xslt_ctxt =

223 if

(object->type == XPATH_NODESET ||

224

object->type == XPATH_XSLT_TREE) {

226 object

->boolval = 0;

227 for

(

int

k = 0; k <

object

->nodesetval->nodeNr; ++k)

230

object->nodesetval->nodeTab[k]);

This exception class is thrown by xmlwrapp for all runtime XSLT-related errors.

The XSLT extension function object is used to be a base class for the user provided XSLT functions.

virtual ~extension_function()

Destroy extension function object and clean the memory up.

extension_function & operator=(const extension_function &other)

Create a copy of the extension function object.

extension_function()

Create a new extension function.

void set_return_value(const xpath_object &ret_val)

Set the extension function return value.

void report_error(const char *error)

Report an error to the XSLT processor.

impl::extension_function_impl * pimpl_

static bool get_allow_extension_functions_leak(void)

Provides the current setting of the extension functions memory management.

The xslt::xpath_object class is used to store extension function arguments and return values.

bool get_from_xslt(void) const

void * get_object(void) const

void revoke_ownership(void) const

XSLT extension function object.

This file contains definition of the xslt::impl::extension_function_impl class.

static std::string convert_error_code(xpath_error error)

xpath_error

XPath error which could be reported by a user XSLT extension function.

@ xptr_sub_resource_error

@ xpath_invalid_char_error

@ xpath_unknown_func_error

@ xpath_undef_variable_error

@ xpath_undef_prefix_error

@ xpath_variable_ref_error

@ xpath_invalid_predicate_error

@ xpath_invalid_ctxt_size

@ xpath_start_literal_error

@ xpath_invalid_ctxt_position

@ xpath_unfinished_literal_error

xmlXPathParserContextPtr xpath_parser_ctxt

extension_function_impl()

std::vector< xmlNodePtr > nodes_to_free_

This file contains definition of the xslt::impl::stylesheet_impl class.

This file contains the definition of the xslt::exception class.

This file contains the definition of the xslt::init class.

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