Re: [NTG-context] need help comparing strings
On 10/13/20 7:14 PM, Wolfgang Schuster wrote:
> Pablo Rodriguez schrieb am 13.10.2020 um 19:06:
>> [...]
>> In any case, I cannot compare to a number:
>>
>>\startluacode
>> userdata = userdata or {}
>> function userdata.numbersfname(name)
>> return string.match(name, "%d+")
>> end
>>\stopluacode
>>
>>\define[1]\numbersfname
>>{\cldcontext{userdata.numbersfname([==[#1]==])}}
>
> Untested:
>
> \defineexpandable[1]\numbersfname
> {\cldcontext{userdata.numbersfname([==[#1]==])}}
I’m afraid it doesn’t work.
\startluacode
userdata = userdata or {}
function userdata.numbersfname(name)
return string.match(name, "%d+")
end
\stopluacode
\defineexpandable[1]\numbersfname
{\cldcontext{userdata.numbersfname([==[#1]==])}}
\starttext
\numbersfname{abc123}
\numbersfname{\env{fname}}
\doifelse{\numbersfname{\env{fname}}}{123}{yes}{no}
\stoptext
Just curious about what the difference might be.
Many thanks for your help,
Pablo
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Re: [NTG-context] need help comparing strings
On 10/13/20 5:33 PM, Pablo Rodriguez wrote:
> [...]
> \starttext
> \ctxlua{ d = [[\env{fname}]] }
>
> d: \cldcontext{d}\\
> \doifelse{\cldcontext{d:match("\letterpercent d+")}}
> {123}{yes}{no}
> \stoptext
> [...]
> 3. I’m trying this on a Linux box, but on Windows I would say that Lua
> variable "d" is empty.
Just for the record, this sample also works in Windows.
The Lua variable isn’t empty and the conditional outputs "yes".
Pablo
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Re: [NTG-context] need help comparing strings
Pablo Rodriguez schrieb am 13.10.2020 um 19:06:
On 10/13/20 5:54 PM, Aditya Mahajan wrote:
On Tue, 13 Oct 2020, Pablo Rodriguez wrote:
[...]
Could anyone explain me what I’m missing here?
Many thanks for your reply, Aditya.
I find it simpler to write macros where there is clean communicating
between tex and lua. For example:
[...]
\define[1]\numbersfname
{\cldcontext{userdata.numbersfname([==[#1]==])}}
This is the first time I see that way of wrapping an argument.
In any case, I cannot compare to a number:
\startluacode
userdata = userdata or {}
function userdata.numbersfname(name)
return string.match(name, "%d+")
end
\stopluacode
\define[1]\numbersfname
{\cldcontext{userdata.numbersfname([==[#1]==])}}
Untested:
\defineexpandable[1]\numbersfname
{\cldcontext{userdata.numbersfname([==[#1]==])}}
Wolfgang
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Re: [NTG-context] need help comparing strings
On 10/13/20 6:14 PM, Wolfgang Schuster wrote:
> Pablo Rodriguez schrieb am 13.10.2020 um 17:33:
>> [...]
>> 2. Is there no Lua version of \getvariable{...}{...}?
>
> There is no need because everything is stored in a Lua table.
> [...]
> local argumentlist = document.arguments.arguments
> local argumenttable = utilities.parsers.settings_to_hash(argumentlist)
>
> context(argumenttable["fname"])
Many thanks for your reply, Wolfgang.
This is exactly what I need.
Many thanks for your help,
Pablo
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Re: [NTG-context] need help comparing strings
On 10/13/20 5:54 PM, Aditya Mahajan wrote:
> On Tue, 13 Oct 2020, Pablo Rodriguez wrote:
>> [...]
>> Could anyone explain me what I’m missing here?
Many thanks for your reply, Aditya.
> I find it simpler to write macros where there is clean communicating
> between tex and lua. For example:
> [...]
> \define[1]\numbersfname
> {\cldcontext{userdata.numbersfname([==[#1]==])}}
This is the first time I see that way of wrapping an argument.
In any case, I cannot compare to a number:
\startluacode
userdata = userdata or {}
function userdata.numbersfname(name)
return string.match(name, "%d+")
end
\stopluacode
\define[1]\numbersfname
{\cldcontext{userdata.numbersfname([==[#1]==])}}
\starttext
\numbersfname{abc123}
\numbersfname{\env{fname}}
\doifelse{\numbersfname{\env{fname}}}{123}{yes}{no}
\stoptext
I don’t know why both strings don’t match.
Many thanks for your help,
Pablo
--
http://www.ousia.tk
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Re: [NTG-context] need help comparing strings
Pablo Rodriguez schrieb am 13.10.2020 um 17:33:
Dear list,
I have the following sample:
\starttext
\def\numbersfname
{\cldcontext{string.match([[\env{fname}]], "\letterpercent d+")}}
\ctxlua{ c = context.getvariable("environment", "fname") or "a" }
\ctxlua{ d = [[\env{fname}]] }
tex: \numbersfname\\
\doifelse{}
{123}{yes}{no}\\
c: \cldcontext{c}\\
\doifelse{\cldcontext{c:match("\letterpercent d+")}}
{123}{yes}{no}\\
d: \cldcontext{d}\\
\doifelse{\cldcontext{d:match("\letterpercent d+")}}
{123}{yes}{no}
\stoptext
For compilation, I run the command:
context --purgeall --arguments=fname={abc123} test-file.tex
These things are failing:
1. I don’t know how to get \numbersfname equal to "123". I don’t know
what I’m doing wrong.
2. Is there no Lua version of \getvariable{...}{...}?
There is no need because everything is stored in a Lua table.
begin example
\starttext
\startluacode
local argumentlist = document.arguments.arguments
local argumenttable = utilities.parsers.settings_to_hash(argumentlist)
context(argumenttable["fname"])
\stopluacode
\stoptext
end example
I tested the example with:
context --arguments="fname=abc123"
Wolfgang
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Re: [NTG-context] need help comparing strings
On Tue, 13 Oct 2020, Pablo Rodriguez wrote:
> Dear list,
>
> I have the following sample:
>
> \starttext
> \def\numbersfname
> {\cldcontext{string.match([[\env{fname}]], "\letterpercent d+")}}
> \ctxlua{ c = context.getvariable("environment", "fname") or "a" }
> \ctxlua{ d = [[\env{fname}]] }
>
> tex: \numbersfname\\
> \doifelse{}
> {123}{yes}{no}\\
> c: \cldcontext{c}\\
> \doifelse{\cldcontext{c:match("\letterpercent d+")}}
> {123}{yes}{no}\\
> d: \cldcontext{d}\\
> \doifelse{\cldcontext{d:match("\letterpercent d+")}}
> {123}{yes}{no}
> \stoptext
>
> For compilation, I run the command:
>
> context --purgeall --arguments=fname={abc123} test-file.tex
>
> These things are failing:
>
> 1. I don’t know how to get \numbersfname equal to "123". I don’t know
> what I’m doing wrong.
>
> 2. Is there no Lua version of \getvariable{...}{...}?
>
> 3. I’m trying this on a Linux box, but on Windows I would say that Lua
> variable "d" is empty.
>
> I need to get the number from \env{fname} and I don’t know what I’m
> missing. \doif is the way to test whether it’s right.
>
> Could anyone explain me what I’m missing here?
I find it simpler to write macros where there is clean communicating between
tex and lua. For example:
\startluacode
userdata = userdata or {}
function userdata.numbersfname(name)
return string.match(name, "%d+")
end
\stopluacode
\define[1]\numbersfname
{\cldcontext{userdata.numbersfname([==[#1]==])}}
\starttext
\numbersfname{abc123}
\numbersfname{\env{fname}}
\stoptext
Aditya___
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[NTG-context] need help comparing strings
Dear list,
I have the following sample:
\starttext
\def\numbersfname
{\cldcontext{string.match([[\env{fname}]], "\letterpercent d+")}}
\ctxlua{ c = context.getvariable("environment", "fname") or "a" }
\ctxlua{ d = [[\env{fname}]] }
tex: \numbersfname\\
\doifelse{}
{123}{yes}{no}\\
c: \cldcontext{c}\\
\doifelse{\cldcontext{c:match("\letterpercent d+")}}
{123}{yes}{no}\\
d: \cldcontext{d}\\
\doifelse{\cldcontext{d:match("\letterpercent d+")}}
{123}{yes}{no}
\stoptext
For compilation, I run the command:
context --purgeall --arguments=fname={abc123} test-file.tex
These things are failing:
1. I don’t know how to get \numbersfname equal to "123". I don’t know
what I’m doing wrong.
2. Is there no Lua version of \getvariable{...}{...}?
3. I’m trying this on a Linux box, but on Windows I would say that Lua
variable "d" is empty.
I need to get the number from \env{fname} and I don’t know what I’m
missing. \doif is the way to test whether it’s right.
Could anyone explain me what I’m missing here?
Many thanks,
Pablo
--
http://www.ousia.tk
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