When I have a page whose name is a number, I sometimes use the Summary page
text variable in pagelists as the page's effective title. To make the markup
easier for users, I want to create custom markup similar to PmWiki's
[[MyPage|+]] markup. My markup would use the tilde instead of a plus sign, to
produce link text with the page's $:Summary, if available, and using the title,
or if necessary the page name, if it's not.
Here's what I've written so far:
if …. # I NEED A CONDITIONAL HERE that will evaluate to true if the to-be-saved
Summary page text variable will be null
$BestAvailableTitle = '$Titlespaced';
} else {
$BestAvailableTitle = 'PageTextVar($pagename,"Summary")';
}
$FmtPV['$BestAvailableTitle'] = $BestAvailableTitle;
Markup('[[|~', '<[[|',
"/(?>\\[\\[([^|\\]]+))\\|\\s*\\~\\s*]]/e",
"Keep(MakeLink(\$pagename, PSS('$1'),
PageVar(MakePageName(\$pagename,PSS('$1')),
'\$BestAvailableTitle')
),'L')");
I have tried using for the missing conditional the following:
function PTVlen ($page, $ptv) {
$var=PageTextVar($page,$ptv);
return strlen($var);
}
if (PTVlen($page,"Summary") == 0) {
But when I do that, preview shows the old page text variable values when it
previews the page.
What do I need to do to make this work?
Note also: I'm using "/e" in the markup. I think I read that that was
deprecated in PHP 5.5. Although I'm not using that PHP version yet, I have no
idea how to do this any other way. Suggestions are welcome.
Randy
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