mirror of
https://github.com/sheumann/hush.git
synced 2024-12-23 05:29:58 +00:00
e52da5570e
Use it in libiproute: get rid of one static string buffer. function old new delta auto_string - 51 +51 ll_index_to_name 10 49 +39 buffer_fill_and_print 169 178 +9 scan_recursive 378 380 +2 decode_one_format 732 734 +2 cmdputs 334 332 -2 static.cur_saved 4 1 -3 static.nbuf 16 - -16 printable_string 94 57 -37 ll_idx_n2a 53 - -53 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 4/3 up/down: 103/-111) Total: -8 bytes text data bss dec hex filename 939880 992 17496 958368 e9fa0 busybox_old 939880 992 17480 958352 e9f90 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
58 lines
1.0 KiB
C
58 lines
1.0 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Unicode support routines.
|
|
*
|
|
* Copyright (C) 2010 Denys Vlasenko
|
|
*
|
|
* Licensed under GPLv2, see file LICENSE in this source tree.
|
|
*/
|
|
#include "libbb.h"
|
|
#include "unicode.h"
|
|
|
|
const char* FAST_FUNC printable_string(uni_stat_t *stats, const char *str)
|
|
{
|
|
char *dst;
|
|
const char *s;
|
|
|
|
s = str;
|
|
while (1) {
|
|
unsigned char c = *s;
|
|
if (c == '\0') {
|
|
/* 99+% of inputs do not need conversion */
|
|
if (stats) {
|
|
stats->byte_count = (s - str);
|
|
stats->unicode_count = (s - str);
|
|
stats->unicode_width = (s - str);
|
|
}
|
|
return str;
|
|
}
|
|
if (c < ' ')
|
|
break;
|
|
if (c >= 0x7f)
|
|
break;
|
|
s++;
|
|
}
|
|
|
|
#if ENABLE_UNICODE_SUPPORT
|
|
dst = unicode_conv_to_printable(stats, str);
|
|
#else
|
|
{
|
|
char *d = dst = xstrdup(str);
|
|
while (1) {
|
|
unsigned char c = *d;
|
|
if (c == '\0')
|
|
break;
|
|
if (c < ' ' || c >= 0x7f)
|
|
*d = '?';
|
|
d++;
|
|
}
|
|
if (stats) {
|
|
stats->byte_count = (d - dst);
|
|
stats->unicode_count = (d - dst);
|
|
stats->unicode_width = (d - dst);
|
|
}
|
|
}
|
|
#endif
|
|
return auto_string(dst);
|
|
}
|