[NTG-context] Re: \luaescapestring in proper Lua
On 4/11/24 18:56, Hans Hagen via ntg-context wrote:
> [...]
>>> \protected\def\PrintTheThing{\ctxlua{document.print_the_thing()}}
>>
>> Sorry, but why \protected is required or recommended here?
>
> depends if you want it to be expandable
I see now that "still.pdf" has a full chapter (#3, titled “Scanning
Input”) and page 79 explains exactly this.
Many thanks for your help,
Pablo
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[NTG-context] Re: \luaescapestring in proper Lua
On 4/11/2024 5:07 PM, Pablo Rodriguez via ntg-context wrote:
On 4/10/24 21:48, Hans Hagen via ntg-context wrote:
On 4/10/2024 7:49 PM, Pablo Rodriguez via ntg-context wrote:
[...]
I wonder whether there is a proper way in the Lua code to avoid
[[\luaescapestring{}]] in \ctxlua.
[...]
context(tokens.scanners.string())
Many thanks for your reply, Hans.
\protected\def\PrintTheThing{\ctxlua{document.print_the_thing()}}
Sorry, but why \protected is required or recommended here?
depends if you want it to be expandable
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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[NTG-context] Re: \luaescapestring in proper Lua
On 4/10/24 21:48, Hans Hagen via ntg-context wrote:
> On 4/10/2024 7:49 PM, Pablo Rodriguez via ntg-context wrote:
>> [...]
>> I wonder whether there is a proper way in the Lua code to avoid
>> [[\luaescapestring{}]] in \ctxlua.
>> [...]
> context(tokens.scanners.string())
Many thanks for your reply, Hans.
> \protected\def\PrintTheThing{\ctxlua{document.print_the_thing()}}
Sorry, but why \protected is required or recommended here?
Many thanks for your help,
Pablo
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[NTG-context] Re: \luaescapestring in proper Lua
On 4/10/2024 7:49 PM, Pablo Rodriguez via ntg-context wrote:
Dear list,
I have the following sample:
\starttext
\startluacode
function document.print_the_thing(str)
context(str)
end
\stopluacode
\unexpanded\def\PrintTheThing#1{%
\ctxlua{document.print_the_thing([[\luaescapestring{#1}]])}}
\PrintTheThing{a \em b {c}}
\stoptext
I wonder whether there is a proper way in the Lua code to avoid
[[\luaescapestring{}]] in \ctxlua.
BTW, [[\luaescapestring{}]] in \ctxlua works better for me, since in my
real world document, I’m using str:match() to check whether the string
ends with interrogation or exclamation marks ("%?!$").
\starttext
\startluacode
function document.print_the_thing()
context(tokens.scanners.string())
end
\stopluacode
\protected\def\PrintTheThing{\ctxlua{document.print_the_thing()}}
\PrintTheThing{a \em b {\bf c} d}
\stoptext
bonus:
test!\removepunctuation ?
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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