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From: Pablo Rodriguez <oinos@gmx.es>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: need help comparing strings
Date: Tue, 13 Oct 2020 17:33:14 +0200	[thread overview]
Message-ID: <fea01040-c0d7-5ad8-b87f-daaabfda71cc@gmx.es> (raw)

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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             reply	other threads:[~2020-10-13 15:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-13 15:33 Pablo Rodriguez [this message]
2020-10-13 15:54 ` Aditya Mahajan
2020-10-13 17:06   ` Pablo Rodriguez
2020-10-13 17:14     ` Wolfgang Schuster
2020-10-13 17:38       ` Pablo Rodriguez
2020-10-13 16:14 ` Wolfgang Schuster
2020-10-13 17:09   ` Pablo Rodriguez
2020-10-13 17:16 ` Pablo Rodriguez

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