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doc: minor grammar fixes in counterexamples section

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* doc/bison.texi: Minor fixes in counterexamples section.
This commit is contained in:
Nick Gasson
2020-10-27 06:12:27 +00:00
committed by Akim Demaille
parent 3cba59dd7f
commit 7c6e7bd300
1 changed files with 6 additions and 5 deletions
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doc/bison.texi
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@@ -9945,10 +9945,11 @@ very documentation. To solve a conflict, one must understand it: when does
it occur? Is it because of a flaw in the grammar? Is it rather because
LR(1) cannot cope with this grammar?
On difficulty is that conflicts occur in the @emph{automaton}, and it can be
tricky to related them to issues in the @emph{grammar} itself. With
experience and patience, analysis the detailed description of the automaton
(@pxref{Understanding}) allows to find example strings that reach these conflicts.
One difficulty is that conflicts occur in the @emph{automaton}, and it can
be tricky to relate them to issues in the @emph{grammar} itself. With
experience and patience, analysis of the detailed description of the
automaton (@pxref{Understanding}) allows one to find example strings that
reach these conflicts.
That task is made much easier thanks to the generation of counterexamples,
initially developed by Chinawat Isradisaikul and Andrew Myers
@@ -10101,7 +10102,7 @@ sequence.y:8.3-45: @dwarning{warning}: rule useless in parser due to conflicts [
Each of these three conflicts, again, prove that the grammar is ambiguous.
For instance, the second conflict (the reduce/reduce one) shows that the
grammar accept the empty input in two different ways.
grammar accepts the empty input in two different ways.
@sp 1