home *** CD-ROM | disk | FTP | other *** search
- let: Defines DTML variables
-
- The 'let' tag defines variables in the DTML namespace.
-
- Syntax
-
- <dtml-let [Name=Variable][Name="Expression"]...>
- </dtml-let>
-
- The 'let' tag is a block tag. Variables are defined by tag
- arguments. Defined variables are pushed onto the DTML namespace
- while the 'let' block is executed. Variables are defined by
- attributes. The 'let' tag can have one or more attributes with
- arbitrary names. If the attributes are defined with double quotes
- they are considered expressions, otherwise they are looked up by
- name. Attributes are processed in order, so later attributes can
- reference, and/or overwrite earlier ones.
-
- Examples
-
- Basic usage::
-
- <dtml-let name="'Bob'" ids=objectIds>
- name: <dtml-var name>
- ids: <dtml-var ids>
- </dtml-let>
-
- Using the 'let' tag with the 'in' tag::
-
- <dtml-in expr="(1,2,3,4)">
- <dtml-let num=sequence-item
- index=sequence-index
- result="num*index">
- <dtml-var num> * <dtml-var index> = <dtml-var result>
- </dtml-let>
- </dtml-in>
-
- This yields::
-
- 1 * 0 = 0
- 2 * 1 = 2
- 3 * 2 = 6
- 4 * 3 = 12
-
- See Also
-
- "with tag":dtml-with.stx
-