Thanks, but I'm still getting the same error. I'm thinking that it has
something to do with the percent characters...
This here works just fine:
\startluacode
function test(s)
result = string.gsub(s, 'x20', 'MATCH')
context(result)
end
\stopluacode
\define[1]\test{\ctxlua{test("#1")}}
\starttext
\test{asdfx20} % -> asdfMATCH
\stoptext
But this here won't:
\startluacode
function test(s)
result = string.gsub(s, '%%20', 'MATCH')
context(result)
end
\stopluacode
\define[1]\test{\ctxlua{test("#1")}}
\starttext
\test{asdf%20} % -> does not work
\stoptext
Any ideas?
Best,
Denis
Von: Hans van der Meer via ntg-context <ntg-context@ntg.nl>
Gesendet: Freitag, 21. Juli 2023 16:26
An: NTG ConTeXt <ntg-context@ntg.nl>
Cc: Hans van der Meer <havdm...@ziggo.nl>
Betreff: [NTG-context] Re: Replacing %20 with spaces in xml attributes
Here in Terminal on my Mac:
21 ~: lua
Lua 5.4.6 Copyright (C) 1994-2023 Lua.org, PUC-Rio
> string.gsub('a%20b', '%%20', ' ')
a b 1
> (string.gsub('a%20b', '%%20', ' '))
a b
> ^D
21 ~:
The first call returns the 1 giving the match, the extra ()'s get rid of that
second return value.
yours sincerely
dr. Hans van der Meer
On 21 Jul 2023, at 12:37, denis.ma...@unibe.ch<mailto:denis.ma...@unibe.ch>
wrote:
Hi,
I'm typesetting an XML document where the links to the images contain spaces
which are encoded as %20
<graphic xlink:href="a%20filename%20with%20spaces.jpg"/>
Using this works in cases without spaces:
\startxmlsetups xml:fig:graphic
\externalfigure[\xmlatt{#1}{xlink:href}]
\stopxmlsetups
This also works for normal spaces, but is there a way to decode/expand the %20s
to regular spaces?
I've tried with some Lua, but I don't really know how to pass data around.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\startluacode
function replaceSpaces(s)
result = string.gsub(s, "%%20", " ")
context(result)
end
\stopluacode
\define[1]\replaceSpaces{\ctxlua{replaceSpaces("#1")}}
\startxmlsetups xml:fig:graphic
\externalfigure[\replaceSpaces{\xmlatt{#1}{xlink:href}}]
\stopxmlsetups
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Any hints, why this does not work?`
Also, maybe there's a simpler way for this kind of scenario?
Best,
Denis
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