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input: stop treating lone CRs as end-of-lines

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We used to treat lone CRs (\r, aka ^M) as regular NLs (\n), probably
to please Classic MacOS.  As of today, it makes more sense to treat \r
like a plain white space character.

https://lists.gnu.org/archive/html/bison-patches/2019-09/msg00027.html

* src/scan-gram.l (no_cr_read): Remove.  Instead, use...
(eol): this new abbreviation denoting end-of-line.
* src/location.c (caret_getc): New.
(location_caret): Use it.
* tests/diagnostics.at (Carriage return): Adjust expectations.
(CR NL): New.
This commit is contained in:
Akim Demaille
2019-09-10 18:51:25 +02:00
parent 5e4133175d
commit 19da501e06
4 changed files with 76 additions and 71 deletions
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6
NEWS
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@@ -2,6 +2,12 @@ GNU Bison NEWS
* Noteworthy changes in release ?.? (????-??-??) [?]
** Backward incompatible changes
Lone carriage-return characters (aka \r or ^M) in the grammar files are no
longer treated as end-of-lines. This changes the diagnostics, and in
particular their locations.
** Bug fixes
In Java, %define api.prefix was ignored. It now behaves as expected.