109ee5d33
Denys Vlasenko
2014-03-16
Subject
ash: make "locak VAR" unset VAR (bash does that)
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shell/ash.c +3 -0shell/ash_test/ash-misc/local1.right +4 -0shell/ash_test/ash-misc/local1.tests +11 -0
shell/ash.c+3 -0
| @@ -8960,6 +8960,9 @@ mklocal(char *name) | |
| vp->flags |= VSTRFIXED|VTEXTFIXED; | |
| if (eq) | |
| setvareq(name, 0); | |
| + | else |
| + | /* "local VAR" unsets VAR: */ |
| + | setvar(name, NULL, 0); |
| } | |
| } | |
| lvp->vp = vp; | |
shell/ash_test/ash-misc/local1.right+4 -0
| @@ -0,0 +1,4 @@ | |
| + | A1:'A' |
| + | A2:'' |
| + | A3:'' |
| + | A4:'A' |
shell/ash_test/ash-misc/local1.tests+11 -0
| @@ -0,0 +1,11 @@ | |
| + | a=A |
| + | f() { |
| + | local a |
| + | # the above line unsets $a |
| + | echo "A2:'$a'" |
| + | unset a |
| + | echo "A3:'$a'" |
| + | } |
| + | echo "A1:'$a'" |
| + | f |
| + | echo "A4:'$a'" |