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498 lines
20 KiB
PHP
498 lines
20 KiB
PHP
(*
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* Summary: internal interfaces for XML Path Language implementation
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* Description: internal interfaces for XML Path Language implementation
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* used to build new modules on top of XPath like XPointer and
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* XSLT
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*
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* Copy: See Copyright for the status of this software.
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*
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* Author: Daniel Veillard
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*)
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{$IFDEF LIBXML_XPATH_ENABLED}
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{$IFDEF _FUNCTION}
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(************************************************************************
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* *
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* Helpers *
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* *
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************************************************************************)
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(*
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* Many of these macros may later turn into functions. They
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* shouldn't be used in {'s preprocessor instructions.
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*)
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(**
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* xmlXPathSetError:
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* @ctxt: an XPath parser context
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* @err: an xmlXPathError code
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*
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* Raises an error.
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*)
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#define xmlXPathSetError(ctxt, err) \
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{ xmlXPatherror((ctxt), __FILE__, __LINE__, (err)); \
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if ((ctxt) != NULL) (ctxt)->error = (err); }
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(**
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* xmlXPathSetArityError:
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* @ctxt: an XPath parser context
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*
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* Raises an XPATH_INVALID_ARITY error.
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*)
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#define xmlXPathSetArityError(ctxt) \
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xmlXPathSetError((ctxt), XPATH_INVALID_ARITY)
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(**
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* xmlXPathSetTypeError:
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* @ctxt: an XPath parser context
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*
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* Raises an XPATH_INVALID_TYPE error.
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*)
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#define xmlXPathSetTypeError(ctxt) \
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xmlXPathSetError((ctxt), XPATH_INVALID_TYPE)
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(**
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* xmlXPathGetError:
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* @ctxt: an XPath parser context
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*
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* Get the error code of an XPath context.
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*
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* Returns the context error.
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*)
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#define xmlXPathGetError(ctxt) ((ctxt)->error)
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(**
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* xmlXPathCheckError:
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* @ctxt: an XPath parser context
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*
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* Check if an XPath error was raised.
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*
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* Returns true if an error has been raised, false otherwise.
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*)
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#define xmlXPathCheckError(ctxt) ((ctxt)->error != XPATH_EXPRESSION_OK)
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(**
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* xmlXPathGetDocument:
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* @ctxt: an XPath parser context
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*
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* Get the document of an XPath context.
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*
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* Returns the context document.
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*)
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#define xmlXPathGetDocument(ctxt) ((ctxt)->context->doc)
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(**
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* xmlXPathGetContextNode:
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* @ctxt: an XPath parser context
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*
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* Get the context node of an XPath context.
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*
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* Returns the context node.
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*)
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#define xmlXPathGetContextNode(ctxt) ((ctxt)->context->node)
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external xml2lib int EXTDECL
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xmlXPathPopBoolean (xmlXPathParserContextPtr ctxt);
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external xml2lib double EXTDECL
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xmlXPathPopNumber (xmlXPathParserContextPtr ctxt);
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external xml2lib xmlChar * EXTDECL
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xmlXPathPopString (xmlXPathParserContextPtr ctxt);
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external xml2lib xmlNodeSetPtr EXTDECL
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xmlXPathPopNodeSet (xmlXPathParserContextPtr ctxt);
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external xml2lib void * EXTDECL
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xmlXPathPopExternal (xmlXPathParserContextPtr ctxt);
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(**
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* xmlXPathReturnBoolean:
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* @ctxt: an XPath parser context
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* @val: a boolean
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*
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* Pushes the boolean @val on the context stack.
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*)
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#define xmlXPathReturnBoolean(ctxt, val) \
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valuePush((ctxt), xmlXPathNewBoolean(val))
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(**
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* xmlXPathReturnTrue:
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* @ctxt: an XPath parser context
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*
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* Pushes true on the context stack.
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*)
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#define xmlXPathReturnTrue(ctxt) xmlXPathReturnBoolean((ctxt), 1)
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(**
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* xmlXPathReturnFalse:
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* @ctxt: an XPath parser context
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*
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* Pushes false on the context stack.
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*)
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#define xmlXPathReturnFalse(ctxt) xmlXPathReturnBoolean((ctxt), 0)
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(**
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* xmlXPathReturnNumber:
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* @ctxt: an XPath parser context
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* @val: a double
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*
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* Pushes the double @val on the context stack.
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*)
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#define xmlXPathReturnNumber(ctxt, val) \
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valuePush((ctxt), xmlXPathNewFloat(val))
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(**
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* xmlXPathReturnString:
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* @ctxt: an XPath parser context
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* @str: a string
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*
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* Pushes the string @str on the context stack.
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*)
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#define xmlXPathReturnString(ctxt, str) \
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valuePush((ctxt), xmlXPathWrapString(str))
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(**
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* xmlXPathReturnEmptyString:
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* @ctxt: an XPath parser context
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*
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* Pushes an empty string on the stack.
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*)
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#define xmlXPathReturnEmptyString(ctxt) \
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valuePush((ctxt), xmlXPathNewCString(""))
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(**
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* xmlXPathReturnNodeSet:
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* @ctxt: an XPath parser context
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* @ns: a node-set
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*
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* Pushes the node-set @ns on the context stack.
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*)
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#define xmlXPathReturnNodeSet(ctxt, ns) \
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valuePush((ctxt), xmlXPathWrapNodeSet(ns))
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(**
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* xmlXPathReturnEmptyNodeSet:
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* @ctxt: an XPath parser context
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*
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* Pushes an empty node-set on the context stack.
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*)
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#define xmlXPathReturnEmptyNodeSet(ctxt) \
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valuePush((ctxt), xmlXPathNewNodeSet(NULL))
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(**
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* xmlXPathReturnExternal:
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* @ctxt: an XPath parser context
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* @val: user data
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*
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* Pushes user data on the context stack.
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*)
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#define xmlXPathReturnExternal(ctxt, val) \
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valuePush((ctxt), xmlXPathWrapExternal(val))
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(**
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* xmlXPathStackIsNodeSet:
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* @ctxt: an XPath parser context
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*
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* Check if the current value on the XPath stack is a node set or
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* an XSLT value tree.
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*
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* Returns true if the current object on the stack is a node-set.
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*)
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#define xmlXPathStackIsNodeSet(ctxt) \
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(((ctxt)->value != NULL) \
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&& (((ctxt)->value->type == XPATH_NODESET) \
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|| ((ctxt)->value->type == XPATH_XSLT_TREE)))
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(**
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* xmlXPathStackIsExternal:
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* @ctxt: an XPath parser context
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*
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* Checks if the current value on the XPath stack is an external
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* object.
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*
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* Returns true if the current object on the stack is an external
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* object.
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*)
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#define xmlXPathStackIsExternal(ctxt) \
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((ctxt->value != NULL) && (ctxt->value->type == XPATH_USERS))
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(**
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* xmlXPathEmptyNodeSet:
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* @ns: a node-set
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*
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* Empties a node-set.
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*)
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#define xmlXPathEmptyNodeSet(ns) \
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{ while ((ns)->nodeNr > 0) (ns)->nodeTab[(ns)->nodeNr--] = NULL; }
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(**
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* CHECK_ERROR:
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*
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* Macro to return from the function if an XPath error was detected.
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*)
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#define CHECK_ERROR \
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if (ctxt->error != XPATH_EXPRESSION_OK) return
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(**
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* CHECK_ERROR0:
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*
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* Macro to return 0 from the function if an XPath error was detected.
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*)
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#define CHECK_ERROR0 \
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if (ctxt->error != XPATH_EXPRESSION_OK) return(0)
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(**
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* XP_ERROR:
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* @X: the error code
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*
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* Macro to raise an XPath error and return.
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*)
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#define XP_ERROR(X) \
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{ xmlXPathErr(ctxt, X); return; }
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(**
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* XP_ERROR0:
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* @X: the error code
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*
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* Macro to raise an XPath error and return 0.
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*)
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#define XP_ERROR0(X) \
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{ xmlXPathErr(ctxt, X); return(0); }
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(**
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* CHECK_TYPE:
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* @typeval: the XPath type
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*
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* Macro to check that the value on top of the XPath stack is of a given
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* type.
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*)
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#define CHECK_TYPE(typeval) \
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if ((ctxt->value == NULL) || (ctxt->value->type != typeval)) \
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XP_ERROR(XPATH_INVALID_TYPE)
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(**
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* CHECK_TYPE0:
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* @typeval: the XPath type
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*
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* Macro to check that the value on top of the XPath stack is of a given
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* type. Return(0) in case of failure
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*)
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#define CHECK_TYPE0(typeval) \
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if ((ctxt->value == NULL) || (ctxt->value->type != typeval)) \
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XP_ERROR0(XPATH_INVALID_TYPE)
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(**
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* CHECK_ARITY:
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* @x: the number of expected args
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*
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* Macro to check that the number of args passed to an XPath function matches.
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*)
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#define CHECK_ARITY(x) \
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if (ctxt == NULL) return; \
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if (nargs != (x)) \
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XP_ERROR(XPATH_INVALID_ARITY);
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(**
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* CAST_TO_STRING:
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*
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* Macro to try to cast the value on the top of the XPath stack to a string.
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*)
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#define CAST_TO_STRING \
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if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_STRING)) \
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xmlXPathStringFunction(ctxt, 1);
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(**
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* CAST_TO_NUMBER:
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*
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* Macro to try to cast the value on the top of the XPath stack to a number.
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*)
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#define CAST_TO_NUMBER \
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if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_NUMBER)) \
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xmlXPathNumberFunction(ctxt, 1);
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(**
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* CAST_TO_BOOLEAN:
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*
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* Macro to try to cast the value on the top of the XPath stack to a boolean.
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*)
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#define CAST_TO_BOOLEAN \
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if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_BOOLEAN)) \
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xmlXPathBooleanFunction(ctxt, 1);
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{$ENDIF}
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{$IFDEF FUNCTION}
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(*
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* Variable Lookup forwarding.
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*)
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procedure xmlXPathRegisterVariableLookup(ctxt: xmlXPathContextPtr; f: xmlXPathVariableLookupFunc; data: pointer); EXTDECL; external xml2lib;
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(*
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* Function Lookup forwarding.
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*)
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procedure xmlXPathRegisterFuncLookup(ctxt: xmlXPathContextPtr; f: xmlXPathFuncLookupFunc; funcCtxt: pointer); EXTDECL; external xml2lib;
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(*
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* Error reporting.
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*)
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//procedure __xmlXPatherror(ctxt: xmlXPathParserContextPtr; _file: PAnsiChar; line, no: cint); EXTDECL; external xml2lib name 'xmlXPatherror';
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procedure xmlXPathErr(ctxt: xmlXPathParserContextPtr; error: cint); EXTDECL; external xml2lib;
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{$IFDEF LIBXML_DEBUG_ENABLED}
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procedure xmlXPathDebugDumpObject(output: PFILE; cur: xmlXPathObjectPtr; depth: cint); EXTDECL; external xml2lib;
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procedure xmlXPathDebugDumpCompExpr(output: PFILE; comp: xmlXPathCompExprPtr; depth: cint); EXTDECL; external xml2lib;
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{$ENDIF}
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(**
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* NodeSet handling.
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*)
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function xmlXPathNodeSetContains(cur: xmlNodeSetPtr; val: xmlNodePtr): cint; EXTDECL; external xml2lib;
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function xmlXPathDifference(nodes1, nodes2: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathIntersection(nodes1, nodes2: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathDistinctSorted(nodes: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathDistinct(nodes: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathHasSameNodes(nodes1, nodes2: xmlNodeSetPtr): cint; EXTDECL; external xml2lib;
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function xmlXPathNodeLeadingSorted(nodes: xmlNodeSetPtr; node: xmlNodePtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathLeadingSorted(nodes1, nodes2: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathNodeLeading(nodes: xmlNodeSetPtr; node: xmlNodePtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathLeading(nodes1, nodes2: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathNodeTrailingSorted(nodes: xmlNodeSetPtr; node: xmlNodePtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathTrailingSorted(nodes1, nodes2: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathNodeTrailing(nodes: xmlNodeSetPtr; node: xmlNodePtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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function xmlXPathTrailing(nodes1, nodes2: xmlNodeSetPtr): xmlNodeSetPtr; EXTDECL; external xml2lib;
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(**
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* Extending a context.
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*)
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function xmlXPathRegisterNs(ctxt: xmlXPathContextPtr; prefix, ns_uri: xmlCharPtr): cint; EXTDECL; external xml2lib;
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function xmlXPathNsLookup(ctxt: xmlXPathContextPtr; prefix: xmlCharPtr): xmlCharPtr; EXTDECL; external xml2lib;
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procedure xmlXPathDebugDumpCompExpr(ctxt: xmlXPathContextPtr); EXTDECL; external xml2lib;
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function xmlXPathRegisterFunc(ctxt: xmlXPathContextPtr; name: xmlCharPtr; f: xmlXPathFunction): cint; EXTDECL; external xml2lib;
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function xmlXPathRegisterFuncNS(ctxt: xmlXPathContextPtr; name, ns_uri: xmlCharPtr; f: xmlXPathFunction): cint; EXTDECL; external xml2lib;
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function xmlXPathRegisterVariable(ctxt: xmlXPathContextPtr; name: xmlCharPtr; value: xmlXPathObjectPtr): cint; EXTDECL; external xml2lib;
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function xmlXPathRegisterVariableNS(ctxt: xmlXPathContextPtr; name, ns_uri: xmlCharPtr; value: xmlXPathObjectPtr): cint; EXTDECL; external xml2lib;
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function xmlXPathFunctionLookup(ctxt: xmlXPathContextPtr; name: xmlCharPtr): xmlXPathFunction; EXTDECL; external xml2lib;
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function xmlXPathFunctionLookupNS(ctxt: xmlXPathContextPtr; name, ns_uri: xmlCharPtr): xmlXPathFunction; EXTDECL; external xml2lib;
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procedure xmlXPathRegisteredFuncsCleanup(ctxt: xmlXPathContextPtr); EXTDECL; external xml2lib;
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function xmlXPathVariableLookup(ctxt: xmlXPathContextPtr; name: xmlCharPtr): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathVariableLookupNS(ctxt: xmlXPathContextPtr; name, ns_uri: xmlCharPtr): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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procedure xmlXPathRegisteredVariablesCleanup(ctxt: xmlXPathContextPtr); EXTDECL; external xml2lib;
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(**
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* Utilities to extend XPath.
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*)
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function xmlXPathNewParserContext(str: xmlCharPtr; ctxt: xmlXPathContextPtr): xmlXPathParserContextPtr; EXTDECL; external xml2lib;
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procedure xmlXPathFreeParserContext(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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(* TODO: remap to xmlXPathValuePop and Push. *)
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function valuePop(ctxt: xmlXPathParserContextPtr): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function valuePush(ctxt: xmlXPathParserContextPtr): cint; EXTDECL; external xml2lib;
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function xmlXPathNewString(val: xmlCharPtr): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathNewCString(val: PAnsiChar): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathWrapString(val: xmlCharPtr): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathWrapCString(val: PAnsiChar): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathNewFloat(val: cdouble): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathNewBoolean(val: cint): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathNewNodeSet(val: xmlNodePtr): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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function xmlXPathNewValueTree(val: xmlNodePtr): xmlXPathObjectPtr; EXTDECL; external xml2lib;
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procedure xmlXPathNodeSetAddUnique(cur: xmlNodeSetPtr; val: xmlNodePtr); EXTDECL; external xml2lib;
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procedure xmlXPathNodeSetAdd(cur: xmlNodeSetPtr; val: xmlNodePtr); EXTDECL; external xml2lib;
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procedure xmlXPathNodeSetAddNs(cur: xmlNodeSetPtr; node: xmlNodePtr; ns: xmlNsPtr); EXTDECL; external xml2lib;
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procedure xmlXPathNodeSetSort(_set: xmlNodeSetPtr); EXTDECL; external xml2lib;
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procedure xmlXPathRoot(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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procedure xmlXPathEvalExpr(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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function xmlXPathParseName(ctxt: xmlXPathParserContextPtr): xmlCharPtr; EXTDECL; external xml2lib;
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function xmlXPathParseNCName(ctxt: xmlXPathParserContextPtr): xmlCharPtr; EXTDECL; external xml2lib;
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(*
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* Existing functions.
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*)
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{external xml2lib double EXTDECL
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xmlXPathStringEvalNumber (xmlChar *str);
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external xml2lib int EXTDECL
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xmlXPathEvaluatePredicateResult (xmlXPathParserContextPtr ctxt,
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xmlXPathObjectPtr res);
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external xml2lib void EXTDECL
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xmlXPathRegisterAllFunctions (xmlXPathContextPtr ctxt);
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external xml2lib xmlNodeSetPtr EXTDECL
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xmlXPathNodeSetMerge (xmlNodeSetPtr val1,
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xmlNodeSetPtr val2);
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external xml2lib void EXTDECL
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xmlXPathNodeSetDel (xmlNodeSetPtr cur,
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xmlNodePtr val);
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external xml2lib void EXTDECL
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xmlXPathNodeSetRemove (xmlNodeSetPtr cur,
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int val);
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external xml2lib xmlXPathObjectPtr EXTDECL
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xmlXPathNewNodeSetList (xmlNodeSetPtr val);
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external xml2lib xmlXPathObjectPtr EXTDECL
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xmlXPathWrapNodeSet (xmlNodeSetPtr val);
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external xml2lib xmlXPathObjectPtr EXTDECL
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xmlXPathWrapExternal (void *val);}
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function xmlXPathEqualValues(ctxt: xmlXPathParserContextPtr): cint; EXTDECL; external xml2lib;
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function xmlXPathNotEqualValues(ctxt: xmlXPathParserContextPtr): cint; EXTDECL; external xml2lib;
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function xmlXPathCompareValues(ctxt: xmlXPathParserContextPtr; inf, strict: cint): cint; EXTDECL; external xml2lib;
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procedure xmlXPathValueFlipSign(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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procedure xmlXPathAddValues(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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procedure xmlXPathSubValues(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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procedure xmlXPathMultValues(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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procedure xmlXPathDivValues(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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procedure xmlXPathModValues(ctxt: xmlXPathParserContextPtr); EXTDECL; external xml2lib;
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function xmlXPathIsNodeType(name: xmlCharPtr): cint; EXTDECL; external xml2lib;
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(*
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* Some of the axis navigation routines.
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*)
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function xmlXPathNextSelf(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextChild(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextDescendant(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextDescendantOrSelf(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextParent(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextAncestorOrSelf(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextFollowingSibling(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextFollowing(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextNamespace(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextAttribute(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextPreceding(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextAncestor(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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function xmlXPathNextPrecedingSibling(ctxt: xmlXPathParserContextPtr; cur: xmlNodePtr): xmlNodePtr; EXTDECL; external xml2lib;
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(*
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* The official core of XPath functions.
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*)
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procedure xmlXPathLastFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathPositionFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathCountFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathIdFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathLocalNameFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathNamespaceURIFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathStringFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathStringLengthFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathConcatFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathContainsFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathStartsWithFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathSubstringFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathSubstringBeforeFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathSubstringAfterFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathNormalizeFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathTranslateFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathNotFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathTrueFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathFalseFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathLangFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathNumberFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathSumFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathFloorFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathCeilingFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathRoundFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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procedure xmlXPathBooleanFunction(ctxt: xmlXPathParserContextPtr; nargs: cint); EXTDECL; external xml2lib;
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(**
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* Really internal functions
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*)
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procedure xmlXPathNodeSetFreeNs(ns: xmlNsPtr); EXTDECL; external xml2lib;
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{$ENDIF}
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{$ENDIF} (* LIBXML_XPATH_ENABLED *)
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