In the example below I pass the macro a string with a space, but the space
should not appear in the url.
I've tried using \ctxlua to invoke string substitution, but without
success. What is the proper way to remove this space, and to perform string
manipulation more generally?
\setupinteraction[state=start]
\def\squeeze#1%
{\goto{#1}[url(tel:#1)]}
\starttext
Call \squeeze{01234 56789}
\stoptext
--
With kind regards,
Michael
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