* [NTG-context] Own command definition breaks with interaction: Use of \do_my_command doesn't match its definition
@ 2024-01-25 8:18 Gerion Entrup
2024-01-29 8:30 ` [NTG-context] " Taco Hoekwater
2024-01-29 15:31 ` Wolfgang Schuster
0 siblings, 2 replies; 3+ messages in thread
From: Gerion Entrup @ 2024-01-25 8:18 UTC (permalink / raw)
To: ntg-context
[-- Attachment #1.1.1: Type: text/plain, Size: 1484 bytes --]
Hi,
I want to make a proper definition of a new command to be able to
process it in Lua. I found something on StackOverflow [1] but that
breaks in enumeration _and_ when interaction is enabled and I do not
understand why? Can you give me some help here?
I want to make commands like \foo{bla} and \foo[b]{bla} possible at the
same time. Here is a minimal example (also attached):
```
\startluacode
function userdata.my_command(keywords, text)
commands.writestatus("test", string.format("text: %s, config: %s", text, keywords))
local cfg = utilities.parsers.settings_to_hash(keywords)
if cfg['emph'] ~= nil then
context("\\emph{" .. text .. "}")
elseif cfg['bold'] ~= nil then
context("\\bold{" .. text .. "}")
else
context(text)
end
end
\stopluacode
% without that line there is no problem
\setupinteraction[state=start]
\defineenumeration[enu][text=Enu]
\unprotect
\def\mc{\dosingleempty\do_my_command}
\def\do_my_command[#1]#2{%
\iffirstargument{%
\ctxlua{userdata.my_command('#1', [==[#2]==])}%
}\else {%
\ctxlua{userdata.my_command('', [==[#2]==])}%
}\fi
}
\protect
\starttext
% all the following works
\mc{foo} \mc[bold]{foo} \mc[emph]{foo}
\startenu[title=Some]
\stopenu
% this breaks
\startenu[title=Some \mc{foo}]
\stopenu
\stoptext
```
The compilation fails with:
```
tex error > tex error on line 41 in file ./test.tex: Use of \do_my_command doesn't match its definition
```
Best,
Gerion
[1] https://tex.stackexchange.com/a/55778
[-- Attachment #1.1.2: test.tex --]
[-- Type: text/x-tex, Size: 889 bytes --]
\startluacode
function userdata.my_command(keywords, text)
commands.writestatus("test", string.format("text: %s, config: %s", text, keywords))
local cfg = utilities.parsers.settings_to_hash(keywords)
if cfg['emph'] ~= nil then
context("\\emph{" .. text .. "}")
elseif cfg['bold'] ~= nil then
context("\\bold{" .. text .. "}")
else
context(text)
end
end
\stopluacode
% without that line there is no problem
\setupinteraction[state=start]
\defineenumeration[enu][text=Enu]
\unprotect
\def\mc{\dosingleempty\do_my_command}
\def\do_my_command[#1]#2{%
\iffirstargument{%
\ctxlua{userdata.my_command('#1', [==[#2]==])}%
}\else {%
\ctxlua{userdata.my_command('', [==[#2]==])}%
}\fi
}
\protect
\starttext
% all the following works
\mc{foo} \mc[bold]{foo} \mc[emph]{foo}
\startenu[title=Some]
\stopenu
% this breaks
\startenu[title=Some \mc{foo}]
\stopenu
\stoptext
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[-- Attachment #2: Type: text/plain, Size: 511 bytes --]
___________________________________________________________________________________
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [NTG-context] Re: Own command definition breaks with interaction: Use of \do_my_command doesn't match its definition
2024-01-25 8:18 [NTG-context] Own command definition breaks with interaction: Use of \do_my_command doesn't match its definition Gerion Entrup
@ 2024-01-29 8:30 ` Taco Hoekwater
2024-01-29 15:31 ` Wolfgang Schuster
1 sibling, 0 replies; 3+ messages in thread
From: Taco Hoekwater @ 2024-01-29 8:30 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi,
You can try:
> \unexpanded\def\do_my_command[#1]#2{%
But there is probably a cleaner way to implement optional arguments with lua?
Best wishes,
Taco
> On 25 Jan 2024, at 09:18, Gerion Entrup <gerion.entrup@flump.de> wrote:
>
> Hi,
>
> I want to make a proper definition of a new command to be able to
> process it in Lua. I found something on StackOverflow [1] but that
> breaks in enumeration _and_ when interaction is enabled and I do not
> understand why? Can you give me some help here?
>
> I want to make commands like \foo{bla} and \foo[b]{bla} possible at the
> same time. Here is a minimal example (also attached):
>
> ```
> \startluacode
> function userdata.my_command(keywords, text)
> commands.writestatus("test", string.format("text: %s, config: %s", text, keywords))
> local cfg = utilities.parsers.settings_to_hash(keywords)
>
> if cfg['emph'] ~= nil then
> context("\\emph{" .. text .. "}")
> elseif cfg['bold'] ~= nil then
> context("\\bold{" .. text .. "}")
> else
> context(text)
> end
> end
> \stopluacode
>
> % without that line there is no problem
> \setupinteraction[state=start]
>
> \defineenumeration[enu][text=Enu]
>
> \unprotect
> \def\mc{\dosingleempty\do_my_command}
> \def\do_my_command[#1]#2{%
> \iffirstargument{%
> \ctxlua{userdata.my_command('#1', [==[#2]==])}%
> }\else {%
> \ctxlua{userdata.my_command('', [==[#2]==])}%
> }\fi
> }
> \protect
>
> \starttext
>
> % all the following works
> \mc{foo} \mc[bold]{foo} \mc[emph]{foo}
>
> \startenu[title=Some]
> \stopenu
>
> % this breaks
> \startenu[title=Some \mc{foo}]
> \stopenu
>
> \stoptext
> ```
>
> The compilation fails with:
> ```
> tex error > tex error on line 41 in file ./test.tex: Use of \do_my_command doesn't match its definition
> ```
>
> Best,
> Gerion
>
> [1] https://tex.stackexchange.com/a/55778
> <test.tex>___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
> webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
> archive : https://github.com/contextgarden/context
> wiki : https://wiki.contextgarden.net
> ___________________________________________________________________________________
—
Taco Hoekwater E: taco@bittext.nl
genderfluid (all pronouns)
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive : https://github.com/contextgarden/context
wiki : https://wiki.contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 3+ messages in thread
* [NTG-context] Re: Own command definition breaks with interaction: Use of \do_my_command doesn't match its definition
2024-01-25 8:18 [NTG-context] Own command definition breaks with interaction: Use of \do_my_command doesn't match its definition Gerion Entrup
2024-01-29 8:30 ` [NTG-context] " Taco Hoekwater
@ 2024-01-29 15:31 ` Wolfgang Schuster
1 sibling, 0 replies; 3+ messages in thread
From: Wolfgang Schuster @ 2024-01-29 15:31 UTC (permalink / raw)
To: mailing list for ConTeXt users, Gerion Entrup
Gerion Entrup schrieb am 25.01.2024 um 09:18:
> Hi,
>
> I want to make a proper definition of a new command to be able to
> process it in Lua. I found something on StackOverflow [1] but that
> breaks in enumeration _and_ when interaction is enabled and I do not
> understand why? Can you give me some help here?
>
> I want to make commands like \foo{bla} and \foo[b]{bla} possible at the
> same time. Here is a minimal example (also attached):
>
> ```
> \startluacode
> function userdata.my_command(keywords, text)
> commands.writestatus("test", string.format("text: %s, config: %s", text, keywords))
> local cfg = utilities.parsers.settings_to_hash(keywords)
>
> if cfg['emph'] ~= nil then
> context("\\emph{" .. text .. "}")
> elseif cfg['bold'] ~= nil then
> context("\\bold{" .. text .. "}")
> else
> context(text)
> end
> end
> \stopluacode
\startluacode
function userdata.my_command(keywords, text)
local keywords = utilities.parsers.settings_to_hash(keywords)
if keywords['emph'] then
context.emph(text)
elseif keywords['bold'] then
context.bold(text)
else
context(text)
end
end
\stopluacode
> % without that line there is no problem
> \setupinteraction[state=start]
>
> \defineenumeration[enu][text=Enu]
\defineenumeration[enu][text=Enu,title=yes]
> \unprotect
> \def\mc{\dosingleempty\do_my_command}
> \def\do_my_command[#1]#2{%
> \iffirstargument{%
> \ctxlua{userdata.my_command('#1', [==[#2]==])}%
> }\else {%
> \ctxlua{userdata.my_command('', [==[#2]==])}%
> }\fi
> }
> \protect
\tolerant\protected\def\mc[#1]#2%
{\ctxlua{userdata.my_command("#1","#2")}}
Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive : https://github.com/contextgarden/context
wiki : https://wiki.contextgarden.net
___________________________________________________________________________________
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