👤
Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:
Select Section of Man Page:
Select Man Page Repository:

Linux 2.6 - man page for xmerl_xpath (linux section 3erl)

xmerl_xpath(3erl)		     Erlang Module Definition			xmerl_xpath(3erl)

NAME
       xmerl_xpath - The xmerl_xpath module handles the entire XPath 1.0 spec
	 XPath expressions typically occurs in XML attributes and are used to addres
	 parts of an XML document.

DESCRIPTION
       The  xmerl_xpath  module  handles  the  entire  XPath 1.0 spec XPath expressions typically
       occurs in XML attributes and are used to addres parts of an XML document. The  grammar  is
       defined	in xmerl_xpath_parse.yrl . The core functions are defined in xmerl_xpath_pred.erl
       .

       Some useful shell commands for debugging the XPath parser

	c(xmerl_xpath_scan).
	yecc:yecc("xmerl_xpath_parse.yrl", "xmerl_xpath_parse", true, []).
	c(xmerl_xpath_parse).

	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("position() > -1")).
	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("5 * 6 div 2")).
	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("5 + 6 mod 2")).
	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("5 * 6")).
	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("-----6")).
	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("parent::node()")).
	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("descendant-or-self::node()")).
	xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("parent::processing-instruction('foo')")).

DATA TYPES
	 docEntity() = xmlElement() | xmlAttribute() | xmlText() | xmlPI() | xmlComment() :

	 nodeEntity() = xmlElement() | xmlAttribute() | xmlText() | xmlPI()  |	xmlNamespace()	|
	 xmlDocument() :

	 option_list() :

	   Options allows to customize the behaviour of the XPath scanner.

	   Possible options are:

	   {namespace, #xmlNamespace} :
	     Set namespace nodes, from XmlNamspace, in xmlContext

	   {namespace, Nodes} :
	     Set namespace nodes in xmlContext.

EXPORTS
       string(Str, Doc) -> [docEntity()] | Scalar

	      Equivalent to string(Str, Doc, []) .

       string(Str, Doc, Options) -> [docEntity()] | Scalar

	      Equivalent to string(Str, Doc, [], Doc, Options) .

       string(Str, Node, Parents, Doc, Options) -> [docEntity()] | Scalar

	      Types  Str = xPathString()
		     Node = nodeEntity()
		     Parents = parentList()
		     Doc = nodeEntity()
		     Options = option_list()
		     Scalar = xmlObj

	      Extracts	the nodes from the parsed XML tree according to XPath. xmlObj is a record
	      with fields type and value, where type is boolean | number | string

AUTHORS
       <>

					   xmerl 1.2.8				xmerl_xpath(3erl)


All times are GMT -4. The time now is 12:53 AM.



All times are GMT -4. The time now is 12:53 AM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
×
UNIX.COM Login
Username:
Password:  
Show Password