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collapse uselessly nested if

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tg 2016-05-05 22:19:04 +00:00
parent 370b3e6008
commit b6e438037f
1 changed files with 58 additions and 60 deletions
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118
eval.c
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@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.185 2016/02/26 19:05:21 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.186 2016/05/05 22:19:04 tg Exp $");
/*
* string expansion
@ -1213,67 +1213,65 @@ varsub(Expand *xp, const char *sp, const char *word,
}
/* POSIX 2009? */
zero_ok = true;
} else {
if ((p = cstrchr(sp, '[')) && (p[1] == '*' || p[1] == '@') &&
p[2] == ']') {
XPtrV wv;
} else if ((p = cstrchr(sp, '[')) && (p[1] == '*' || p[1] == '@') &&
p[2] == ']') {
XPtrV wv;
switch (stype & 0x17F) {
/* can't assign to a vector */
case '=':
/* can't trim a vector (yet) */
case '%':
case '#':
case '?':
case '0':
case '/':
case 0x100 | '#':
case 0x100 | 'Q':
return (-1);
}
XPinit(wv, 32);
if ((c = sp[0]) == '!')
++sp;
vp = global(arrayname(sp));
for (; vp; vp = vp->u.array) {
if (!(vp->flag&ISSET))
continue;
XPput(wv, c == '!' ? shf_smprintf("%lu",
arrayindex(vp)) :
str_val(vp));
}
if (XPsize(wv) == 0) {
xp->str = null;
state = p[1] == '@' ? XNULLSUB : XSUB;
XPfree(wv);
} else {
XPput(wv, 0);
xp->u.strv = (const char **)XPptrv(wv);
xp->str = *xp->u.strv++;
/* ${foo[@]} */
xp->split = tobool(p[1] == '@');
state = XARG;
}
} else {
/* Can't assign things like $! or $1 */
if ((stype & 0x17F) == '=' &&
ctype(*sp, C_VAR1 | C_DIGIT))
return (-1);
if (*sp == '!' && sp[1]) {
++sp;
xp->var = global(sp);
if (vstrchr(sp, '['))
xp->str = shf_smprintf("%s[%lu]",
xp->var->name,
arrayindex(xp->var));
else
xp->str = xp->var->name;
} else {
xp->var = global(sp);
xp->str = str_val(xp->var);
}
state = XSUB;
switch (stype & 0x17F) {
/* can't assign to a vector */
case '=':
/* can't trim a vector (yet) */
case '%':
case '#':
case '?':
case '0':
case '/':
case 0x100 | '#':
case 0x100 | 'Q':
return (-1);
}
XPinit(wv, 32);
if ((c = sp[0]) == '!')
++sp;
vp = global(arrayname(sp));
for (; vp; vp = vp->u.array) {
if (!(vp->flag&ISSET))
continue;
XPput(wv, c == '!' ? shf_smprintf("%lu",
arrayindex(vp)) :
str_val(vp));
}
if (XPsize(wv) == 0) {
xp->str = null;
state = p[1] == '@' ? XNULLSUB : XSUB;
XPfree(wv);
} else {
XPput(wv, 0);
xp->u.strv = (const char **)XPptrv(wv);
xp->str = *xp->u.strv++;
/* ${foo[@]} */
xp->split = tobool(p[1] == '@');
state = XARG;
}
} else {
/* Can't assign things like $! or $1 */
if ((stype & 0x17F) == '=' &&
ctype(*sp, C_VAR1 | C_DIGIT))
return (-1);
if (*sp == '!' && sp[1]) {
++sp;
xp->var = global(sp);
if (vstrchr(sp, '['))
xp->str = shf_smprintf("%s[%lu]",
xp->var->name,
arrayindex(xp->var));
else
xp->str = xp->var->name;
} else {
xp->var = global(sp);
xp->str = str_val(xp->var);
}
state = XSUB;
}
c = stype & 0x7F;