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21194: fix handling of zero-length quoted test strings for patterns

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Peter Stephenson 2005-04-26 09:51:27 +00:00
parent ce49d62d45
commit ba1a545516
3 changed files with 14 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2005-04-26 Peter Stephenson <pws@csr.com>
* 21195 (c.f. 21194 from Bart): Src/pattern.c,
Test/D04parameter.ztst: 21170 broke handling of zero-length
quoted test strings.
2005-04-25 Peter Stephenson <pws@csr.com>
* 21184: Test/B04read.ztst: test for foregoing fix.

4
Src/pattern.c
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@ -1552,8 +1552,10 @@ pattryrefs(Patprog prog, char *string, int stringlen, int unmetalen,
*nump = 0;
}
/* inherited from domatch, but why, exactly? */
if (*string == Nularg)
if (*string == Nularg) {
string++;
unmetalen--;
}
if (stringlen < 0)
stringlen = strlen(string);

5
Test/D04parameter.ztst
View file

@ -599,3 +599,8 @@
>said
>i
>willJOYCE
foo=
print "${${foo}/?*/replacement}"
0:Quoted zero-length strings are handled properly
>