Last change
on this file since 3645 was 3621, checked in by Bruno Cornec, 8 years ago |
New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.
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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 | char *dst;
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15 | const char *s;
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16 |
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17 | s = str;
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18 | while (1) {
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19 | unsigned char c = *s;
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20 | if (c == '\0') {
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21 | /* 99+% of inputs do not need conversion */
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22 | if (stats) {
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23 | stats->byte_count = (s - str);
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24 | stats->unicode_count = (s - str);
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25 | stats->unicode_width = (s - str);
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26 | }
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27 | return str;
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28 | }
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29 | if (c < ' ')
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30 | break;
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31 | if (c >= 0x7f)
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32 | break;
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33 | s++;
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34 | }
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35 |
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36 | #if ENABLE_UNICODE_SUPPORT
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37 | dst = unicode_conv_to_printable(stats, str);
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38 | #else
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39 | {
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40 | char *d = dst = xstrdup(str);
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41 | while (1) {
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42 | unsigned char c = *d;
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43 | if (c == '\0')
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44 | break;
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45 | if (c < ' ' || c >= 0x7f)
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46 | *d = '?';
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47 | d++;
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48 | }
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49 | if (stats) {
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50 | stats->byte_count = (d - dst);
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51 | stats->unicode_count = (d - dst);
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52 | stats->unicode_width = (d - dst);
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53 | }
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54 | }
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55 | #endif
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56 | return auto_string(dst);
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57 | }
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