ArborX


xpath

Longname: xpath   Open the Documentation Legend
Released: 7.80 
Created: 7.80 
See also: var attr stream mini getvar indirect (n/a) expr show attrloop tokloop xpointer fs fish fishloop prop propval length lookup resolve string perl lump_expand hash taginfo format_num format_seq css char Technote: 0080

Summary
A keyword used with function variables: ^[funcname parameter(s)]. This syntax can be used anywhere that a regular 3B2 variable can be used: in show strings, in scripts, in expressions, etc. Function variables are a V8 feature that uniforms variable use and functions into a readable syntax. The 'xpath' function provided a generic method to call/eveluate expath expressions from within showstrings. See also <?xpath>.
Example extract

The following show string will display the current value of the th command (text height).

 <?show ^[prop th]?>

Syntax (7.80)
xpath expr:t
expr:t

Any valid xpath expression.

Show the name of the current node using the xpath function variavle syntax.

 <?show $^[xpath name(.)]>

Show the name of the current node using the traditional xpath within showstrings syntax.

 <?show $^!"name(.)">

Document created on 11-Nov-2004 (revision 1)