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fix generated comments

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In Bison 3.6.2, the comments with brackets lose their brackets, for
improper m4 quotation.

* data/skeletons/bison.m4 (b4_gsub): New.
* data/skeletons/c-like.m4 (_b4_comment): Use it.
* tests/m4.at: Check b4_gsub.
This commit is contained in:
Akim Demaille
2020-05-21 17:23:21 +02:00
parent 1ebc2ac55c
commit f80890c4bb
3 changed files with 54 additions and 5 deletions
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8
data/skeletons/c-like.m4
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@@ -17,6 +17,7 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# _b4_comment(TEXT, OPEN, CONTINUE, END)
# --------------------------------------
# Put TEXT in comment. Avoid trailing spaces: don't indent empty lines.
@@ -27,9 +28,10 @@
#
# Prefix all the output lines with PREFIX.
m4_define([_b4_comment],
[$2[]m4_bpatsubsts(m4_expand([$1]),
[[*]/], [*\\/],
[/[*]], [/\\*], [
[$2[]b4_gsub(m4_expand([$1]),
[[*]/], [*\\/],
[/[*]], [/\\*],
[
\(.\)], [
$3\1])$4])