From: "Lukas/ConTeXt" <lpr.context@email.cz>
To: <ntg-context@ntg.nl>
Subject: Re: Checking existence of a macro (control sequence) by Lua - problem after updating MkIV
Date: Fri, 19 Jun 2020 08:36:26 +0200 (CEST) [thread overview]
Message-ID: <bVP.6Ap8b.1}7KN5Q7eEu.1Ux5pg@seznam.cz> (raw)
In-Reply-To: <f96ac517-0463-74d5-2f2c-e27086708453@xs4all.nl>
Hello Hans,
---------- Původní e-mail ---------- {
Od: Hans Hagen <j.hagen@xs4all.nl>
as you updated, it's just:
\startluacode
local defined = tokens.defined
for _, v in ipairs{ "MyMacro", "MyMacWithPars", "Undefined", "DoNothing", "NonExisting" } do
print(string.format("\letterpercent-12s", v), defined(v), defined(v, true), defined(v, false))
end
\stopluacode
---------- Původní e-mail ---------- }
your solution gives me:
"
MyMacro false true false
MyMacWithPars false true false
Undefined false true false
DoNothing false true false
NonExisting false false false
"
which desn't recognize \Undefined - it should give 'false' in the 2nd column of results, like \NonExisting does.
But I have another solution (asked in Czech TUG) - use of 'token.get_meaning(cs)':
----
\startluacode
for _, v in ipairs{ "MyMacro", "MyMacWithPars", "Undefined", "DoNothing", "NonExisting" } do
print(string.format("\letterpercent-12s", v), "get_meaning", token.get_meaning(v) or "(non-existing/undefined)")
end
\stopluacode
----
- Produces:
"
MyMacro get_meaning ->Ahoj
MyMacWithPars get_meaning #1#2->Something
Undefined get_meaning (non-existing/undefined)
DoNothing get_meaning ->
NonExisting get_meaning (non-existing/undefined)
"
which is perfectly what I need.
But thank you anyway for your effort.
Best regards,
Lukas
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
prev parent reply other threads:[~2020-06-19 6:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-18 8:27 Lukas/ConTeXt
2020-06-18 10:21 ` Hans van der Meer
2020-06-18 10:29 ` Lukas/ConTeXt
2020-06-18 20:52 ` Hans Hagen
2020-06-19 6:36 ` Lukas/ConTeXt [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='bVP.6Ap8b.1}7KN5Q7eEu.1Ux5pg@seznam.cz' \
--to=lpr.context@email.cz \
--cc=ntg-context@ntg.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).