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| author | Peter Stephenson <pws@users.sourceforge.net> | 2012-07-15 18:06:40 +0000 |
|---|---|---|
| committer | Peter Stephenson <pws@users.sourceforge.net> | 2012-07-15 18:06:40 +0000 |
| commit | 129ebac4b02c370869b423aff566d5386bf165d8 (patch) | |
| tree | 685eee834fd5c650094ff8e5f8e2bcac41d6c170 /Src/builtin.c | |
| parent | b2722856e2cbc8bde176f1e5883a331a5d666cfd (diff) | |
| download | zsh-129ebac4b02c370869b423aff566d5386bf165d8.tar.gz zsh-129ebac4b02c370869b423aff566d5386bf165d8.tar.xz zsh-129ebac4b02c370869b423aff566d5386bf165d8.zip | |
Bart: 30560: unset ordinary array element by setting to null
Diffstat (limited to 'Src/builtin.c')
| -rw-r--r-- | Src/builtin.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Src/builtin.c b/Src/builtin.c index 070cbba9b..b5a98cbd2 100644 --- a/Src/builtin.c +++ b/Src/builtin.c @@ -3055,6 +3055,34 @@ bin_unset(char *name, char **argv, Options ops, int func) *sse = ']'; } paramtab = tht; + } else if (PM_TYPE(pm->node.flags) == PM_SCALAR || + PM_TYPE(pm->node.flags) == PM_ARRAY) { + struct value vbuf; + vbuf.isarr = (PM_TYPE(pm->node.flags) == PM_ARRAY ? + SCANPM_ARRONLY : 0); + vbuf.pm = pm; + vbuf.flags = 0; + vbuf.start = 0; + vbuf.end = -1; + vbuf.arr = 0; + *ss = '['; + if (getindex(&ss, &vbuf, SCANPM_ASSIGNING) == 0 && + vbuf.pm && !(vbuf.pm->node.flags & PM_UNSET)) { + if (PM_TYPE(pm->node.flags) == PM_SCALAR) { + setstrvalue(&vbuf, ztrdup("")); + } else { + /* start is after the element for reverse index */ + int start = vbuf.start - !!(vbuf.flags & VALFLAG_INV); + if (start < arrlen(vbuf.pm->u.arr)) { + char *arr[2]; + arr[0] = ""; + arr[1] = 0; + setarrvalue(&vbuf, zarrdup(arr)); + } + } + } + returnval = errflag; + errflag = 0; } else { zerrnam(name, "%s: invalid element for unset", s); returnval = 1; |