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hush: small code shrink

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function                                             old     new   delta
expand_vars_to_list                                 2012    1999     -13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-05-20 16:37:53 +02:00
parent e3be7842be
commit ee0775dd13
1 changed files with 6 additions and 7 deletions
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13
shell/hush.c
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@ -2569,7 +2569,7 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char
default: /* <SPECIAL_VAR_SYMBOL>varname<SPECIAL_VAR_SYMBOL> */
case_default: {
char *var = arg;
bool exp_len;
char exp_len; /* '#' if it's ${#var} */
char exp_op;
char exp_save = exp_save; /* for compiler */
char *exp_saveptr = exp_saveptr; /* points to expansion operator */
@ -2579,12 +2579,11 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char
arg[0] = first_ch & 0x7f;
/* prepare for expansions */
exp_len = false;
exp_op = 0;
if (var[0] == '#') {
exp_len = var[0];
if (exp_len == '#') {
/* handle length expansion ${#var} */
exp_len = true;
++var;
var++;
} else {
/* maybe handle parameter expansion */
exp_saveptr = var + strcspn(var, ":-=+?%#");
@ -2609,8 +2608,8 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char
val = get_local_var_value(var);
/* handle any expansions */
if (exp_len) {
debug_printf_expand("expand: length of '%s' = ", val);
if (exp_len == '#') {
debug_printf_expand("expand: length(%s)=", val);
val = utoa(val ? strlen(val) : 0);
debug_printf_expand("%s\n", val);
} else if (exp_op) {