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hush: remove useless ESC_GLOB_CHARS clears/resotres

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function                                             old     new   delta
o_addQstr                                             43     165    +122
expand_on_ifs                                        210     189     -21
expand_vars_to_list                                 1122    1094     -28
o_addqblock                                          139       -    -139
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 122/-188)          Total: -66 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2010-09-10 10:12:34 +02:00
parent bfc02a76c5
commit a769e0225d
1 changed files with 4 additions and 15 deletions
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19
shell/hush.c
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@ -4353,13 +4353,12 @@ static int expand_on_ifs(o_string *output, int n, const char *str)
while (1) {
int word_len = strcspn(str, G.ifs);
if (word_len) {
if (output->o_expflags & EXP_FLAG_ESC_GLOB_CHARS)
o_addqblock(output, str, word_len);
else if (!(output->o_expflags & EXP_FLAG_GLOB))
if (!(output->o_expflags & EXP_FLAG_GLOB))
o_addblock(output, str, word_len);
else /* if (!escape && glob) */ {
else {
/* Protect backslashes against globbing up :)
* Example: "v='\*'; echo b$v"
* Example: "v='\*'; echo b$v" prints "b\*"
* (and does not try to glob on "*")
*/
o_addblock_duplicate_backslash(output, str, word_len);
/*/ Why can't we do it easier? */
@ -4819,10 +4818,6 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg)
i = 1;
cant_be_null |= first_ch; /* do it for "$@" _now_, when we know it's not empty */
if (!(first_ch & 0x80)) { /* unquoted $* or $@ */
int sv = output->o_expflags;
/* unquoted var's contents should be globbed, so don't escape */
//TODO: make _caller_ set EXP_FLAG_ESC_GLOB_CHARS properly
output->o_expflags &= ~EXP_FLAG_ESC_GLOB_CHARS;
while (G.global_argv[i]) {
n = expand_on_ifs(output, n, G.global_argv[i]);
debug_printf_expand("expand_vars_to_list: argv %d (last %d)\n", i, G.global_argc - 1);
@ -4835,7 +4830,6 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg)
debug_print_list("expand_vars_to_list[3]", output, n);
}
}
output->o_expflags = sv;
} else
/* If EXP_FLAG_SINGLEWORD, we handle assignment 'a=....$@.....'
* and in this case should treat it like '$*' - see 'else...' below */
@ -4917,13 +4911,8 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg)
debug_printf_expand("unquoted '%s', output->o_escape:%d\n", val,
!!(output->o_expflags & EXP_FLAG_ESC_GLOB_CHARS));
if (val && val[0]) {
/* unquoted var's contents should be globbed, so don't escape */
int sv = output->o_expflags;
//TODO: make _caller_ set EXP_FLAG_ESC_GLOB_CHARS properly
output->o_expflags &= ~EXP_FLAG_ESC_GLOB_CHARS;
n = expand_on_ifs(output, n, val);
val = NULL;
output->o_expflags = sv;
}
} else { /* quoted $VAR, val will be appended below */
debug_printf_expand("quoted '%s', output->o_escape:%d\n", val,