Hi Tony,
I figured this might be of interest for your collection, there is
another way to do conditionals within certain limits if one has the
"Tinka" plugin installed. Specifically, it includes a plugin similiar to
the reveal widget in its function but also allows you to check for regex
expressions. An example use (taken straight from the error-checking
section of Tinka):
|<!-- Check whether a plugin title was given --> <$tinka-check
text={{!!create-title-org}} pattern="^[^\s]+$"> <$tinka-filter
verb="fail"> <$action-setfield $tiddler=<<TinkaVars>> result="true"/>
<$action-setfield $tiddler=<<TinkaVars>> errorTitle="The plugin title is
not allowed to be empty or contain whitespaces."/> </$tinka-filter>
<$tinka-filter verb="pass"> <!-- Do something else, plugin title is
valid. --> </$tinka-filter> </$tinka-check> |
This is entirely undocumented, but I think its a neat way to do a
conditional entirely with action widgets (all of those are). Note that
"pattern" could also just be a value of another tiddler field, in which
case the verbs "pass" and "fail" would correspond to "match" and
"nomatch" for the reveal widget. It does only work for action widgets
though, since nothing is rendered.
/Andreas
||
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