Hiroya Fujinami b4e5cb2616 Keep the groups of a regexp compiled again for a string
When a regexp is compiled again for the encoding of a string, pass its
options to the preprocessor so that the comments of extended mode are
dropped as in the first compilation.  Also make is_code_ctype of
Emacs-Mule return false for non-ASCII characters except for the word,
graph and print types, so that they are not treated as newlines.

[Bug #22491]

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 21:30:52 +09:00
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