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diagnostics: get the screen width from the terminal

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* bootstrap.conf: We need winsz-ioctl and winsz-termios.
* src/location.c (columns): Use winsize to get the number of
columns.
Code taken from the GNU Coreutils.
* src/location.h, src/location.c (caret_init): New.
* src/complain.c (complain_init): Call it.
* tests/bison.in: Export COLUMNS so that users of tests/bison can
enjoy proper line truncation.
This commit is contained in:
Akim Demaille
2019-09-21 08:28:56 +02:00
parent 5f45cb05f1
commit 67bff62e31
6 changed files with 54 additions and 10 deletions
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m4/.gitignore vendored
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@@ -202,3 +202,5 @@
/xalloc.m4
/xsize.m4
/xstrndup.m4
/jm-winsz1.m4
/jm-winsz2.m4