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en:public:developer:template_system:tags:expression:caseof [2012/11/15 22:04] admin [Example] |
en:public:developer:template_system:tags:expression:caseof [2012/11/19 11:51] (current) admin |
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- | ===== <#CaseOf> ===== | + | ====== <#CaseOf> ====== |
The purpose of the CaseOf is to allow the value of a variable or expression to control the flow of program execution via a multiway branch. The main reasons for using a CaseOf include improving clarity, by reducing otherwise repetitive coding | The purpose of the CaseOf is to allow the value of a variable or expression to control the flow of program execution via a multiway branch. The main reasons for using a CaseOf include improving clarity, by reducing otherwise repetitive coding | ||
- | ==== Attributes ==== | + | ==== Parameters ==== |
- | + | ||
- | * **expression** - a boolean condition or a number (0 evaluate to false and all other numbers to true). Operators supported: + - * / ( ) OR AND. The tags in the condition are always evaluated before the condition is calculated | + | |
- | * **statement_<a>** - The content (html text or template filename) to return if the expression evaluate to <a> | + | |
- | * ... | + | |
- | * **statement_<n>** - The content (html text or template filename) to return if the expression evaluate to <n> | + | |
+ | ^ Name ^ Mandatory ^ Description ^ | ||
+ | | <html><span style="color:#008000">Expression</span></html> | Yes | An arbitrary expression (string or number). The tags in the expression are always evaluated first | | ||
+ | | <html><span style="color:#008000">Statement_<a></span></html> | No | The content (html text or template filename) to return if the expression evaluate to <a> | | ||
+ | | <html><span style="color:#008000">...</span></html> | ... | ... | | ||
+ | | <html><span style="color:#008000">Statement_<n></span></html> | No | The content (html text or template filename) to return if the expression evaluate to <n> | | ||
+ | | <html><span style="color:#008000">Default</span></html> | No | Default value to return if no result found (else raise an error) | | ||
==== Example ==== | ==== Example ==== | ||