Using the ELSE run filter prefix
The below code is a demo of *ELSE run* ~ filter prefix. It's purpose here
is to get a parameter and remove its surrounding single or souble quotes.
If the parameter has not any surrounding quotes, then returns itself
Macro
\define remove-quotes(term)
<$set name="item" value=<<__term__>> >
<$set name="noquote"
value={{{ [<item>removeprefix["]removesuffix["]]
[<item>removeprefix[']removesuffix[']] ~[<item>] }}}
emptyValue="Process failed!"
</$set>
</$set>
\end
ExamplesRemove single quotes
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><<remove-quotes "'single quotes'">>
That renders as:
single quotes
Remove double quotes
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><<remove-quotes '"double quotes"'>>
That renders as:
double quotes
Empty value
The macro will return the Process failed! if no parameter passed
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><<remove-quotes>>
That renders as:
Process failed
Question:
Is there any better solution to do the above task? One application of this
code is scanning a tiddler and finds occurrences of <<abbr "term">> where
term is glossary index and you want to make a list of abbreviations at the
bottom of your tiddler.
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