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* NEWS: Add entry for recent .output file lookahead set fix.

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* doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
the example .output text.
* tests/regression.at (Extra lookahead sets in report): Improve wording
of comments.
This commit is contained in:
Joel E. Denny
2007-10-19 02:46:21 +00:00
parent b7a7016204
commit 88c7874756
4 changed files with 24 additions and 6 deletions
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11
tests/regression.at
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@@ -1149,11 +1149,12 @@ AT_CLEANUP
AT_SETUP([[Extra lookahead sets in report]])
# Within a single state, Bison used to print a reduction's lookahead set next
# to all items of the associated rule. Instead, it should only print it next
# to the item that is of the associated rule and whose dot is at the end of the
# RHS. Printing it next to items whose dot is not at the end of the RHS is
# sometimes redundant and, as in this test case, is sometimes incorrect.
# Bison prints each reduction's lookahead set only next to the associated
# state's one item that (1) is associated with the same rule as the reduction
# and (2) has its dot at the end of its RHS. Previously, Bison also
# erroneously printed the lookahead set next to all of the state's other items
# associated with the same rule. This bug affected only the `.output' file and
# not the generated parser source code.
AT_DATA([[input.y]],
[[%%