Last change
on this file since 3667 was 3320, checked in by Bruno Cornec, 10 years ago |
- Re-add (thanks git BTW) the 2.2.9 branch which had been destroyed in
the move to 3.0
|
-
Property svn:eol-style
set to
native
|
File size:
1.2 KB
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Rev | Line | |
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[3320] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Unicode support routines.
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| 4 | *
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| 5 | * Copyright (C) 2010 Denys Vlasenko
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| 6 | *
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| 7 | * Licensed under GPLv2, see file LICENSE in this source tree.
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| 8 | */
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| 9 | #include "libbb.h"
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| 10 | #include "unicode.h"
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| 11 |
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| 12 | const char* FAST_FUNC printable_string(uni_stat_t *stats, const char *str)
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| 13 | {
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| 14 | static char *saved[4];
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| 15 | static unsigned cur_saved; /* = 0 */
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| 16 |
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| 17 | char *dst;
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| 18 | const char *s;
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| 19 |
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| 20 | s = str;
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| 21 | while (1) {
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| 22 | unsigned char c = *s;
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| 23 | if (c == '\0') {
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| 24 | /* 99+% of inputs do not need conversion */
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| 25 | if (stats) {
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| 26 | stats->byte_count = (s - str);
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| 27 | stats->unicode_count = (s - str);
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| 28 | stats->unicode_width = (s - str);
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| 29 | }
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| 30 | return str;
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| 31 | }
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| 32 | if (c < ' ')
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| 33 | break;
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| 34 | if (c >= 0x7f)
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| 35 | break;
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| 36 | s++;
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| 37 | }
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| 38 |
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| 39 | #if ENABLE_UNICODE_SUPPORT
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| 40 | dst = unicode_conv_to_printable(stats, str);
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| 41 | #else
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| 42 | {
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| 43 | char *d = dst = xstrdup(str);
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| 44 | while (1) {
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| 45 | unsigned char c = *d;
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| 46 | if (c == '\0')
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| 47 | break;
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| 48 | if (c < ' ' || c >= 0x7f)
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| 49 | *d = '?';
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| 50 | d++;
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| 51 | }
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| 52 | if (stats) {
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| 53 | stats->byte_count = (d - dst);
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| 54 | stats->unicode_count = (d - dst);
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| 55 | stats->unicode_width = (d - dst);
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| 56 | }
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| 57 | }
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| 58 | #endif
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| 59 |
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| 60 | free(saved[cur_saved]);
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| 61 | saved[cur_saved] = dst;
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| 62 | cur_saved = (cur_saved + 1) & (ARRAY_SIZE(saved)-1);
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| 63 |
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| 64 | return dst;
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| 65 | }
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