[pmwiki-users] markup expression output handling
Patrick R. Michaud
pmichaud at pobox.com
Wed Jan 23 10:39:32 CST 2008
On Wed, Jan 23, 2008 at 04:19:17PM +0000, Hans wrote:
> What is the difference between output handling of a markup expression,
> for
> case A: The expression is written in the page content,
> case B: The expression gets evaluated as part of a post submission?
>
> Simplified example:
>
> $MarkupExpr['tagtest'] = 'TagTest()';
> function TagTest() {
> return "<b>Hello</b>";;
> }
>
> case A:
> {(tagtest)} appears as a bold 'Hello'
>
> case B:
> {$$(tagtest)} posted from a template is written as <b>Hello</b>
>
> I use a fox form
>
> (:fox form2 target={*$FullName}:)
> (:foxtemplate "{$$(tagtest)}":)
> (:input submit post Enter:)
> (:foxend form2:)
>
> and when Fox replaces template variables the markup expression gets
> evaluated by calling the MarkupExpression function.
>
> Why is the <b> tag interpreted as bold in case A?
In case A, the <b> tag is being generated as part of the
page output at the time it is being rendered. Thus a browser
sees it as a bold tag.
In case B, the <b> tag is being saved as part of the page's markup,
exactly as if someone had written <b>Hello</b> in the markup text.
Then the angle brackets are converted to < and > when the
page is rendered.
Pm
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