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muscles: fix incorrect decoding of $

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Bug introduced in 458171e6df.
https://lists.gnu.org/archive/html/bison-patches/2013-11/msg00009.html

Reported by Ahcheong Lee.
https://lists.gnu.org/r/bug-bison/2020-03/msg00010.html

* src/muscle-tab.c (COMMON_DECODE): "$" is coded as "$][", not "$[][".
* tests/input.at ("%define" enum variables): Check that case.
This commit is contained in:
Akim Demaille
2020-03-07 07:41:47 +01:00
parent 641e326303
commit b82b387da9
3 changed files with 22 additions and 4 deletions
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19
tests/input.at
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@@ -2069,6 +2069,25 @@ input.y:1.1-34: accepted value: 'consistent'
input.y:1.1-34: accepted value: 'accepting'
]])
# Check escapes.
AT_DATA([[input.y]],
[[%define lr.default-reduction {[$@]}
%%
start: %empty;
]])
AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],
[[input.y:1.1-35: warning: %define variable 'lr.default-reduction' requires keyword values [-Wdeprecated]
1 | %define lr.default-reduction {[$@]}
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
input.y:1.1-35: error: invalid value for %define variable 'lr.default-reduction': '[$@]'
1 | %define lr.default-reduction {[$@]}
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
input.y:1.1-35: accepted value: 'most'
input.y:1.1-35: accepted value: 'consistent'
input.y:1.1-35: accepted value: 'accepting'
]])
# Back-end.
AT_DATA([[input.y]],
[[%define api.push-pull neither