JehanneOS/mksh
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fix ${!foo} for when foo is unset

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This commit is contained in:
tg
2014-05-27 13:00:31 +00:00
parent 0c3c44a6a7
commit d8461d400f
2 changed files with 16 additions and 21 deletions
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17
eval.c
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@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.147 2014/01/11 18:09:39 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.148 2014/05/27 13:00:30 tg Exp $");
/*
* string expansion
@ -1252,17 +1252,12 @@ varsub(Expand *xp, const char *sp, const char *word,
if (*sp == '!' && sp[1]) {
++sp;
xp->var = global(sp);
if (vstrchr(sp, '[')) {
if (xp->var->flag & ISSET)
xp->str = shf_smprintf("%lu",
arrayindex(xp->var));
else
xp->str = null;
} else if (xp->var->flag & ISSET)
xp->str = xp->var->name;
if (vstrchr(sp, '['))
xp->str = shf_smprintf("%s[%lu]",
xp->var->name,
arrayindex(xp->var));
else
/* ksh93 compat */
xp->str = "0";
xp->str = xp->var->name;
} else {
xp->var = global(sp);
xp->str = str_val(xp->var);