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if/unless/then/else regex in templates
User	aaronp55426
Date	4/29/2008 10:05 am
Views	984
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aaronp55426	Date: 4/29/2008 10:05 am · Subject: if/unless/then/else regex in templates · Rating: 0 I'd like to do regex string comparisons in templates in WG v7.4.34. I've looked at both HTML::Template and HTML::Template::Expr, but I can't find anything that works. I want to do this: <tmpl_if expr="currentPage.url=~/about/"> YES! </tmpl_if> I think HTML::Template::Pro may be an option, but it doesn't seem to be supported in WebGUI. Am I missing something, or is simple string regex matching not possible? Thanks. --- (Edited on 4/29/2008 10:05 am [GMT-0500] by aaronp55426) ---
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JT	Date: 4/29/2008 11:08 am · Subject: Re: if/unless/then/else regex in templates · Rating: 0 Step up to Template Toolkit. --- (Edited on April 29, 2008 11:08 am [GMT-0500] by JT) ---
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aaronp55426	Date: 4/29/2008 12:45 pm · Subject: Re: if/unless/then/else regex in templates · Rating: 0 Thanks for the input. I've installed Tempolate Toolkit. The problem is that I'm building a navigation template, and it would take a while to rewrite the existing templates to support the new syntax. Are there are prewritten Template Toolkit vertical navigation templates for WebGUI v7.4 available for download? It seems like a long shot, but I though I'd ask. --- (Edited on 4/29/2008 12:45 pm [GMT-0500] by aaronp55426) ---
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aaronp55426	Date: 5/5/2008 5:39 am · Subject: Re: if/unless/then/else regex in templates · Rating: 0 I'm giving HTML::Template::Expr one last try: <tmpl_if expr="currentPage_url =~ /about/"> YES! </tmpl_if> ... I get: There is a syntax error in this template. Please correct.HTML::Template::Expr->new() : Error creating HTML::Template object : HTML::Template->new() : fatal error occured during filter call: HTML::Template::Expr : Unable to parse expression: (currentPage_url =~ /about/) I think this should be working. Could this be a simple syntax issue? I would try Template Toolkit, but I don't want to write a navigation template from scratch using a new toolkit if I don't have to. Thanks. --- (Edited on 5/5/2008 5:39 am [GMT-0500] by aaronp55426) ---
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colink	Date: 5/5/2008 10:09 am · Subject: Re: if/unless/then/else regex in templates · Rating: 0 It is a simple syntax issue. HTML::Template::Expr does not allow regular expressions. Read the docs: http://search.cpan.org/~samtregar/HTML-Template-Expr-0.07/ If you want regular expressions, you need to use a different templating toolkit. --- (Edited on 5/5/2008 10:09 am [GMT-0500] by colink) ---
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aaronp55426	Date: 5/5/2008 11:22 am · Subject: Re: if/unless/then/else regex in templates · Rating: 0 You are right. It does, however, support custom subroutines. It seems kludgey, but this is the work around I ended up using: In the Apache startup.pl script: HTML::Template::Expr->register_function( ereg => sub { my $one = shift; my $two = shift; return 1 if $one =~ m/$two/; return 0; }); In the navigation template: <tmpl_if expr="ereg(currentPage_url, 'about')"> YES! </tmpl_if> I think I'll submit a feature request for WebGUI to support the HTML::Template::Pro template engine, which would be a more elegant solution. --- (Edited on 5/5/2008 11:22 am [GMT-0500] by aaronp55426) ---
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