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authors, admins (advanced)

Using the (:if:) Directive

The (:if:) directive allows portions of a page to be included or excluded from processing. The generic form of the (:if:) directive is

    (:if cond param:) body (:ifend:)

where "cond" names a condition to be tested (described below), and "param" is a parameter or other argument to the condition.

The built-in conditions include:

    (:if group [name]:)  - current page is in group "name"
    (:if name [name]:)   - current page is named "name"
    (:if auth [level]:)  - viewer is authorized at "level"
    (:if authid:)        - current viewer is authenticated
    (:if false:)         - always exclude text (same as a comment)
    (:if attachments:)   - current page has attachments

Negated forms of conditions also work

    (:if !attachments:) This page has no attachments

Any (:if:) automatically terminates the previous one, thus markup can be easily cased:

    (:if auth read:)* You can read
    (:if auth edit:)* You can edit
    (:if auth upload:)* You can upload

admins (advanced)

Creating new conditions

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Page last modified on August 20, 2005, at 01:45 AM