That worked for that situation, but now isn't working for another. When I
pass a text reference, say {{!!faction}}, it links to a tiddler called
{{!!faction}}, instead of a tiddler whose title matches the faction field.
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On Thu, Feb 4, 2016 at 7:34 PM, Eric Shulman <elsdes...@gmail.com> wrote:
> On Thursday, February 4, 2016 at 2:58:35 PM UTC-8, David Allen wrote:
>>
>> Actually, let me correct that. What I showed is actually working fine.
>> What's not working is when I try to pass a variable created by a list
>> widget into a macro when the tiddler stored in currentTiddler contains
>> spaces in its title. I'm doing the following:
>>
>> <$macrocall $name="ezlink" input=<<currentTiddler>>/>
>>
>> \define ezlink(input)
>>> <$link to=$input$>$input$</$link>
>>> \end
>>>
>>
> summary:
> you need to add quotes around $input$ when used as a parameter in a
> widget...
> details:
>
> In the $macrocall, you correctly set input=<<currentTiddler>> ... where
> the <<...>> syntax retrieves the value from the variable. However, when
> the macro is invoked, any embedded variables (e.g., $input$) are replaced
> by the corresponding value passed to the macro. Thus, in your macro, if
> value of the input param is FOO, then the macro output is
> <$link to=FOO>FOO</$link>
>
> In contrast, if the input value is FOO BAR, then the macro output is
> <$link to=FOO BAR>FOO BAR</$link>
>
> Notice that, although the *text* of the link is FOO BAR, the parameter in
> the $link widget only recognizes the value FOO (i.e., up to the first
> space). The remainder of the value is simply treated as another widget
> param -- one that is badly formed, as it doesn't follow the name="value"
> (or name=<<variable>>... or name={{reference}}) syntax.
>
> As noted above, the fix is to add quotes when assembling the $link widget
> params, like this:
> <$link to="""$input$""">$input$</$link>
>
> This ensures that the resulting output encloses the parameter so it is
> treated as a single value that contains quotes, rather than two separate
> params; i.e.,
> <$link to="""FOO BAR""">FOO BAR</$link>
>
> Note that I've used the *tripled* quotes syntax around the param value (a
> TW5 extension to the HTML syntax). This ensures that if the param value
> contains a regular quote ("), it won't be treated as the ending delimiter
> for the value. i.e., the following syntax:
> <$link to="$input$">$input$</$link>
>
> would result in an invalid result when passed FOO"BAR:
> <$link to="FOO"BAR">FOO"BAR</$link>
>
> Notice how the embedded quote following FOO *ends* the parameter value,
> leaving BAR" as invalid junk, but when triple-quoting, the result would be
> <$link to="""FOO"BAR""">FOO"BAR</$link>
>
> which allows the TW5 core to treat the embedded quote as just a regular
> character. QED.
>
> enjoy,
> -e
> Eric Shulman
> TiddlyTools / ELS Design Studios
> InsideTiddlyWiki: The Missing Manuals
>
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