diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | Src/params.c | 5 | ||||
| -rw-r--r-- | Test/D06subscript.ztst | 5 |
3 files changed, 14 insertions, 1 deletions
@@ -1,3 +1,8 @@ +2005-09-06 Peter Stephenson <pws@csr.com> + + * 21701: Src/params.c, Test/D06subscript.ztst: negative offsets + that indexed before the start of a scalar weren't handled properly. + 2005-09-05 Peter Stephenson <pws@csr.com> * 21698: Jean-Baptiste Quenot: Completion/Unix/Command/_ant: diff --git a/Src/params.c b/Src/params.c index 26b3f3133..1cff358df 100644 --- a/Src/params.c +++ b/Src/params.c @@ -1565,8 +1565,11 @@ getstrvalue(Value v) if (v->start == 0 && v->end == -1) return s; - if (v->start < 0) + if (v->start < 0) { v->start += strlen(s); + if (v->start < 0) + v->start = 0; + } if (v->end < 0) v->end += strlen(s) + 1; s = (v->start > (int)strlen(s)) ? dupstring("") : dupstring(s + v->start); diff --git a/Test/D06subscript.ztst b/Test/D06subscript.ztst index f90c1cb0a..9ce022557 100644 --- a/Test/D06subscript.ztst +++ b/Test/D06subscript.ztst @@ -178,3 +178,8 @@ 0:Keys with double quotes and the (P) expansion flag >lower >upper + + typeset -a empty_array + echo X${${l##*}[-1]}X +0:Negative index applied to substition result from empty array +>XX |