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* data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and

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yacc.c: be sure to stay within yycheck_.
* tests/actions.at: Re-enable C++ tests.
This commit is contained in:
Akim Demaille
2004-12-16 14:39:42 +00:00
parent 10454ea42f
commit fd19f2714f
3 changed files with 30 additions and 20 deletions
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38
data/lalr1.cc
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@@ -810,24 +810,30 @@ yy::]b4_parser_class_name[::yyreport_syntax_error_ ()
yyn_ = yypact_[yystate_];
if (yypact_ninf_ < yyn_ && yyn_ < yylast_)
{
/* Start YYX at -YYN if negative to avoid negative indexes in
YYCHECK. */
int yyxbegin = yyn_ < 0 ? -yyn_ : 0;
/* Stay within bounds of both yycheck and yytname. */
int yychecklim = yylast_ - yyn_;
int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
int count = 0;
for (int x = yyxbegin; x < yyxend; ++x)
if (yycheck_[x + yyn_] == x && x != yyterror_)
++count;
message = "syntax error, unexpected ";
message += yyname_[yyilooka_];
{
int count = 0;
for (int x = (yyn_ < 0 ? -yyn_ : 0); x < yyntokens_ + yynnts_; ++x)
if (yycheck_[x + yyn_] == x && x != yyterror_)
++count;
if (count < 5)
{
count = 0;
for (int x = (yyn_ < 0 ? -yyn_ : 0); x < yyntokens_ + yynnts_; ++x)
if (yycheck_[x + yyn_] == x && x != yyterror_)
{
message += (!count++) ? ", expecting " : " or ";
message += yyname_[x];
}
}
}
if (count < 5)
{
count = 0;
for (int x = yyxbegin; x < yyxend; ++x)
if (yycheck_[x + yyn_] == x && x != yyterror_)
{
message += (!count++) ? ", expecting " : " or ";
message += yyname_[x];
}
}
}
else
#endif