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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: */
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/*
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* Unicode support routines.
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*
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* Copyright (C) 2010 Denys Vlasenko
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*
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* Licensed under GPLv2, see file LICENSE in this source tree.
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*/
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#include "libbb.h"
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#include "unicode.h"
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const char* FAST_FUNC printable_string(uni_stat_t *stats, const char *str)
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{
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char *dst;
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const char *s;
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s = str;
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while (1) {
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unsigned char c = *s;
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if (c == '\0') {
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/* 99+% of inputs do not need conversion */
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if (stats) {
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stats->byte_count = (s - str);
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stats->unicode_count = (s - str);
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stats->unicode_width = (s - str);
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}
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return str;
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}
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if (c < ' ')
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break;
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if (c >= 0x7f)
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break;
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s++;
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}
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#if ENABLE_UNICODE_SUPPORT
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dst = unicode_conv_to_printable(stats, str);
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#else
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{
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char *d = dst = xstrdup(str);
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while (1) {
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unsigned char c = *d;
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if (c == '\0')
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break;
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if (c < ' ' || c >= 0x7f)
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*d = '?';
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d++;
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}
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if (stats) {
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stats->byte_count = (d - dst);
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stats->unicode_count = (d - dst);
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stats->unicode_width = (d - dst);
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}
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}
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#endif
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return auto_string(dst);
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}
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