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all: don't emit an error message when the scanner returns YYERRCODE

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I'm quite pleased to see that the tricky case of glr.c was already
prepared by the changes to support syntax_error exceptions.  Better
yet, it is actually syntax_error that becomes a special case of the
general pattern: make yytoken be YYERRCODE.

* data/skeletons/glr.c (YYFAULTYTOK): Remove the now useless (Basil)
Faulty token.
Instead, use the error token.
* data/skeletons/lalr1.d, data/skeletons/lalr1.java: When computing
the action, first check the case of the error token.

* tests/calc.at: Check cases for the error token symbols before and
after it.
This commit is contained in:
Akim Demaille
2020-04-26 14:48:59 +02:00
parent 58e79539fc
commit b254b36db8
6 changed files with 121 additions and 76 deletions
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15
tests/calc.at
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@@ -1036,6 +1036,21 @@ _AT_CHECK_CALC_ERROR([$1], [0], [(#) + (#) = 2222],
[[1.2: syntax error: invalid character: '#'
1.8: syntax error: invalid character: '#']])
_AT_CHECK_CALC_ERROR([$1], [0], [(1 + #) = 1111],
[[final: 1111 0 0]],
[102],
[[1.6: syntax error: invalid character: '#']])
_AT_CHECK_CALC_ERROR([$1], [0], [(# + 1) = 1111],
[[final: 1111 0 0]],
[102],
[[1.2: syntax error: invalid character: '#']])
_AT_CHECK_CALC_ERROR([$1], [0], [(1 + # + 1) = 1111],
[[final: 1111 0 0]],
[102],
[[1.6: syntax error: invalid character: '#']])
AT_BISON_OPTION_POPDEFS