08-08-2008
Vidhyadhar85 and Franklin52,
Thanks a lot! Your suggestions/inputs have been of great help. They helped me in resolving my problem.
Hava a good one!
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LEARN ABOUT LINUX
xmerl_xpath
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)