commit 19fedea29a13cf95887fa7cb8ea2a600462730f6
Author: Juergen Spitzmueller <sp...@lyx.org>
Date: Fri Oct 18 10:09:35 2024 +0200
Fix hyphenation patterns check with recent babel
This was broken since 2016.
See discussion in https://www.lyx.org/trac/ticket/13112
---
lib/chkconfig.ltx | 25 +++++++++++++++++--------
status.24x | 2 ++
2 files changed, 19 insertions(+), 8 deletions(-)
diff --git a/lib/chkconfig.ltx b/lib/chkconfig.ltx
index bde9d59e4b..dbe99648df 100644
--- a/lib/chkconfig.ltx
+++ b/lib/chkconfig.ltx
@@ -212,13 +212,14 @@
\AddPackage[\expandafter\@parse@version\fmtversion//00\@nil]{LaTeX}
%%% And now, the list of available languages
-% The trick is to know that \the\everyjob contains something like
+% Up to 2016 \the\everyjob contains something like
% \typeout{LaTeX2e <2001/06/01>}
% \typeout{Babel <v3.7h> and hyphenation patterns for american, french,
german, ngerman, nohyphenation, loaded.}
% All we have to do is to extract the list from there:
% (1) concatenate all the messages that are displayed everytime the
% format is loaded. The is done by redefining locally \typeout to
% append its argument to the macro \mesg.
+% But see below for recent versions of babel.
\def\mesg{}
{\def\typeout#1{\xdef\mesg{\mesg #1}}
\the\everyjob}
@@ -226,19 +227,27 @@
% (2) strip the useless parts from \mesg. This uses the fact that TeX
% allows to define macros with parameters delimited by arbitrary text.
\def\platexname{pLaTeX2e}
+\def\langs{}
\ifx\pfmtname\platexname
\def\langs{japanese}
\else
- \def\strip#1patterns for #2, loaded.#3\endmark{\def\langs{#2}}
- \expandafter\strip\mesg\endmark
+ \ifx\mesg\empty
+% As of 2016, babel does not print out the loaded hyphenation patterns to
+% the log anymore, so \mesg will be empty. For the following method,
+% see https://tex.stackexchange.com/questions/330085/
+ \@ifundefined{bbl@languages}{}{
+ \def\bbl@elt#1#2#3#4{#1, }
+ \edef\@langs{\bbl@languages}
+ \def\strip#1, \endmark{\def\langs{#1}}
+ \expandafter\strip\@langs\endmark
+ }
+ \else
+ \def\strip#1patterns for #2, loaded.#3\endmark{\def\langs{#2}}
+ \expandafter\strip\mesg\endmark
+ \fi
\fi
% (3) handle the result
-% FIXME: As of 2016, babel does not print out the loaded hyphenation patterns
to
-% the log anymore, so this discontinues to work. For possible
workarounds
-% (with babel), see https://tex.stackexchange.com/questions/330085/
-% Leaving this activated for the time being, since it probably still
-% works with older distributions.
\message{^^J\prefix checking for available hyphenation patterns... \langs}
\AddVariable{languages}{\langs}
diff --git a/status.24x b/status.24x
index 0b05406f88..0ad2ec7048 100644
--- a/status.24x
+++ b/status.24x
@@ -106,3 +106,5 @@ What's new
* BUILD/INSTALLATION
+- Fix (only informal) check for hyphenation patterns in (re)configuration.
+
--
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