Difference: TWikiIfDotPm ( vs. 1)

Revision 12006-02-01 - TWikiContributor

Line: 1 to 1
Added:
>
>

Package =TWiki::If

Support for the conditions in %IF{} statements. Basically a simple stack-based parser for infix expressions that generates a parse tree that can subsequently be evaluated.

On this page:

ClassMethod new (\%operators) -> \%factory

Construct a new if node factory.
  • \%operators reference to a hash of operators.
Each operator must have the following fields: prec (precedence) type (0 unary 1 binary) exec (ref to a function to execute). If not provided, the default set of boolean operations supported by %IF is used.

ObjectMethod evaluate ($twiki) -> $result

Execute the parse node.

!!!new!!!

ObjectMethod parse ($string) -> \$if

  • $string - string containing an expression to parse
Construct a new search node by parsing the passed expression. Return the new object.
View topic | History: r1 | More topic actions...
 
This site is powered by the TWiki collaboration platformCopyright © 1999-2025 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback
Note: Please contribute updates to this topic on TWiki.org at TWiki:TWiki.TWikiIfDotPm.