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Don't produce invalid XML with multi-line commenting style

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Both XML and HTML forbid double hyphens inside comments.  However,
nxml-mode was using a `!--' as a comment padding if `comment-style'
was set to any of the styles that supposed to add padding.  This infix
was auto-derived due to `comment-continue' being nil.  To fix that set
`comment-continue' explicitly.  It's unclear what padding should be
used, but from looking at other editors it seems they don't typically
add padding in XML, so let's be simple for now and just set
`comment-continue' to empty string.

* lisp/nxml/nxml-mode.el (nxml-mode): Make 'comment-continue' a
buffer-local variable set to the empty string.  (Bug#71772)
This commit is contained in:
Konstantin Kharlamov 2024-06-25 12:26:12 +03:00 committed by Stefan Kangas
parent b97786d9f6
commit 9eea6be5ab
1 changed files with 1 additions and 0 deletions
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lisp/nxml/nxml-mode.el
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@ -531,6 +531,7 @@ Many aspects this mode can be customized using
(setq-local comment-end-skip "[ \t\r\n]*-->")
(setq-local comment-line-break-function #'nxml-newline-and-indent)
(setq-local comment-quote-nested-function #'nxml-comment-quote-nested)
(setq-local comment-continue "") ; avoid double-hyphens as a padding
(save-excursion
(save-restriction
(widen)