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27243: reverse indexing of arrays with beginning index out of range returned

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wrong value
This commit is contained in:
Peter Stephenson 2009-09-05 19:49:19 +00:00
parent 6d4d1261a5
commit 1acf23db3e
3 changed files with 45 additions and 1 deletions
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8
ChangeLog
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@ -1,3 +1,9 @@
2009-09-05 Peter Stephenson <p.w.stephenson@ntlworld.com>
* 27243: Src/params.c, Test/D04parameter.ztst: reverse
indexing in array parameters with a beginning index out of range
returned the wrong value.
2009-09-02 Peter Stephenson <pws@csr.com>
* 27240: Src/builtin.c: 27079 caused later use of tokstr and tok
@ -12111,5 +12117,5 @@
*****************************************************
* This is used by the shell to define $ZSH_PATCHLEVEL
* $Revision: 1.4766 $
* $Revision: 1.4767 $
*****************************************************

10
Src/params.c
View file

@ -1345,6 +1345,11 @@ getarg(char **str, int *inv, Value v, int a2, zlong *w,
len = arrlen(ta);
if (beg < 0)
beg += len;
if (down) {
if (beg < 0)
return 0;
} else if (beg >= len)
return len + 1;
if (beg >= 0 && beg < len) {
if (down) {
if (!hasbeg)
@ -1363,6 +1368,11 @@ getarg(char **str, int *inv, Value v, int a2, zlong *w,
len = arrlen(ta);
if (beg < 0)
beg += len;
if (down) {
if (beg < 0)
return 0;
} else if (beg >= len)
return len + 1;
if (beg >= 0 && beg < len) {
if (down) {
if (!hasbeg)

28
Test/D04parameter.ztst
View file

@ -998,6 +998,34 @@
>sunny
>day
# ' emacs likes this close quote
a=(sping spang spong bumble)
print ${a[(i)spong]}
print ${a[(i)spung]}
print ${a[(ib.1.)spong]}
print ${a[(ib.4.)spong]}
print ${a[(ib.10.)spong]}
0:In and out of range reverse matched indices without and with b: arrays
>3
>5
>3
>5
>5
a="thrimblewuddlefrong"
print ${a[(i)w]}
print ${a[(i)x]}
print ${a[(ib.3.)w]}
print ${a[(ib.10.)w]}
print ${a[(ib.30.)w]}
0:In and out of range reverse matched indices without and with b: strings
>9
>20
>9
>20
>20
foo="line:with::missing::fields:in:it"
print -l ${(s.:.)foo}
0:Removal of empty fields in unquoted splitting