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Patch from Dmitry Zakharov:

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Charlie Brady wrote:
> Here's another awk parsing problem - unary post increment - pre is fine:
>
>bash-2.05a$ echo 2,3 | gawk -F , '{ $2++ }'
>bash-2.05a$ echo 2,3 | /tmp/busybox/busybox awk -F , '{ $2++ }'
>awk: cmd. line:1: Unexpected token
>
Here's a fix for this. There is another problem with constructions like 
"print (A+B) ++C", I don't
know whether somebody uses such constructions (fixing both these 
problems would require very
serious change in awk code).
This commit is contained in:
Rob Landley 2005-06-07 02:43:52 +00:00
parent f3133c4149
commit ed830e8693
1 changed files with 1 additions and 2 deletions
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3
editors/awk.c
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@ -1084,7 +1084,7 @@ static node *parse_expr(unsigned long iexp) {
cn->a.n = vn; cn->a.n = vn;
xtc = TC_OPERAND | TC_UOPPRE | TC_REGEXP; xtc = TC_OPERAND | TC_UOPPRE | TC_REGEXP;
if (tc & (TC_OPERAND | TC_REGEXP)) { if (tc & (TC_OPERAND | TC_REGEXP)) {
xtc = TC_UOPPRE | TC_BINOP | TC_OPERAND | iexp; xtc = TC_UOPPRE | TC_UOPPOST | TC_BINOP | TC_OPERAND | iexp;
/* one should be very careful with switch on tclass - /* one should be very careful with switch on tclass -
* only simple tclasses should be used! */ * only simple tclasses should be used! */
switch (tc) { switch (tc) {
@ -1101,7 +1101,6 @@ static node *parse_expr(unsigned long iexp) {
cn->info |= xS; cn->info |= xS;
cn->r.n = parse_expr(TC_ARRTERM); cn->r.n = parse_expr(TC_ARRTERM);
} }
xtc = TC_UOPPOST | TC_UOPPRE | TC_BINOP | TC_OPERAND | iexp;
break; break;
case TC_NUMBER: case TC_NUMBER: