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annotate lib/unicase/u8-tolower.c @ 14079:97fc9a21a8fb

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maint: update almost all copyright ranges to include 2011 Run the new "make update-copyright" rule.
author Jim Meyering <meyering@redhat.com>
date Sat, 01 Jan 2011 20:17:23 +0100
parents c2cbabec01dd
children 8250f2777afc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Lowercase mapping for UTF-8 strings (locale dependent).
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2 Copyright (C) 2009-2011 Free Software Foundation, Inc.
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3 Written by Bruno Haible <bruno@clisp.org>, 2009.
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4
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5 This program is free software: you can redistribute it and/or modify it
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6 under the terms of the GNU Lesser General Public License as published
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7 by the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 #include <config.h>
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19
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20 /* Specification. */
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21 #include "unicase.h"
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22
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23 #include <stddef.h>
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24
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25 #include "unicasemap.h"
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26 #include "special-casing.h"
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27
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28 uint8_t *
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29 u8_tolower (const uint8_t *s, size_t n, const char *iso639_language,
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30 uninorm_t nf,
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31 uint8_t *resultbuf, size_t *lengthp)
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32 {
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33 return u8_casemap (s, n,
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34 unicase_empty_prefix_context, unicase_empty_suffix_context,
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35 iso639_language,
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36 uc_tolower, offsetof (struct special_casing_rule, lower[0]),
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37 nf,
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38 resultbuf, lengthp);
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39 }
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40
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41
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42 #ifdef TEST
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43
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44 #include <locale.h>
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45 #include <stdio.h>
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46 #include <stdlib.h>
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47 #include <string.h>
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48
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49 /* Read the contents of an input stream, and return it, terminated with a NUL
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50 byte. */
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51 char *
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52 read_file (FILE *stream)
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53 {
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54 #define BUFSIZE 4096
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55 char *buf = NULL;
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56 int alloc = 0;
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57 int size = 0;
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58 int count;
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59
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60 while (! feof (stream))
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61 {
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62 if (size + BUFSIZE > alloc)
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63 {
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64 alloc = alloc + alloc / 2;
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65 if (alloc < size + BUFSIZE)
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66 alloc = size + BUFSIZE;
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67 buf = realloc (buf, alloc);
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68 if (buf == NULL)
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69 {
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70 fprintf (stderr, "out of memory\n");
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71 exit (1);
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72 }
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73 }
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74 count = fread (buf + size, 1, BUFSIZE, stream);
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75 if (count == 0)
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76 {
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77 if (ferror (stream))
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78 {
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79 perror ("fread");
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80 exit (1);
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81 }
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82 }
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83 else
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84 size += count;
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85 }
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86 buf = realloc (buf, size + 1);
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87 if (buf == NULL)
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88 {
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89 fprintf (stderr, "out of memory\n");
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90 exit (1);
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91 }
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92 buf[size] = '\0';
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93 return buf;
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94 #undef BUFSIZE
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95 }
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96
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97 int
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98 main (int argc, char * argv[])
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99 {
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100 setlocale (LC_ALL, "");
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101 if (argc == 1)
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102 {
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103 /* Display the lower case of the input string. */
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104 char *input = read_file (stdin);
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105 int length = strlen (input);
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106 size_t output_length;
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107 uint8_t *output =
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108 u8_tolower ((uint8_t *) input, length, uc_locale_language (),
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109 NULL,
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110 NULL, &output_length);
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111
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112 fwrite (output, 1, output_length, stdout);
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113
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114 return 0;
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115 }
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116 else
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117 return 1;
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118 }
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119
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120 #endif /* TEST */