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fixed a bug in parsing an expression like "1++b" in awk/parse.c

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hyung-hwan
2011-08-13 08:16:05 +00:00
parent f843a6e003
commit 55182c4232
2 changed files with 15 additions and 1 deletions
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14
qse/lib/awk/parse.c
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@ -1,5 +1,5 @@
/* /*
* $Id: parse.c 540 2011-08-11 15:11:02Z hyunghwan.chung $ * $Id: parse.c 541 2011-08-12 14:16:05Z hyunghwan.chung $
* *
Copyright 2006-2011 Chung, Hyung-Hwan. Copyright 2006-2011 Chung, Hyung-Hwan.
This file is part of QSE. This file is part of QSE.
@ -4171,11 +4171,13 @@ static qse_awk_nde_t* parse_increment (
type = QSE_AWK_NDE_EXP_INCPST; type = QSE_AWK_NDE_EXP_INCPST;
opcode = opcode2; opcode = opcode2;
/* let's do it later
if (get_token(awk) <= -1) if (get_token(awk) <= -1)
{ {
qse_awk_clrpt (awk, left); qse_awk_clrpt (awk, left);
return QSE_NULL; return QSE_NULL;
} }
*/
} }
if (!is_var(left) && left->type != QSE_AWK_NDE_POS) if (!is_var(left) && left->type != QSE_AWK_NDE_POS)
@ -4194,6 +4196,16 @@ static qse_awk_nde_t* parse_increment (
} }
} }
if (type == QSE_AWK_NDE_EXP_INCPST)
{
/* consume the postfix operator */
if (get_token(awk) <= -1)
{
qse_awk_clrpt (awk, left);
return QSE_NULL;
}
}
nde = (qse_awk_nde_exp_t*) nde = (qse_awk_nde_exp_t*)
QSE_AWK_ALLOC (awk, QSE_SIZEOF(qse_awk_nde_exp_t)); QSE_AWK_ALLOC (awk, QSE_SIZEOF(qse_awk_nde_exp_t));
if (nde == QSE_NULL) if (nde == QSE_NULL)

2
qse/regress/awk/lang-024.awk
View File

@ -8,5 +8,7 @@ BEGIN {
print a; print a;
print b; print b;
print c; print c;
print 99++c;
} }