[3475] | 1 | //utf8.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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| 5 | * The code (may) include prototypes and comments (and maybe |
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| 6 | * other code fragements) from libpulse*. They are mostly copyrighted by: |
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| 7 | * Lennart Poettering <poettering@users.sourceforge.net> and |
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| 8 | * Pierre Ossman <drzeus@drzeus.cx> |
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| 9 | * |
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| 10 | * This file is part of libroarpulse a part of RoarAudio, |
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| 11 | * a cross-platform sound system for both, home and professional use. |
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| 12 | * See README for details. |
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| 13 | * |
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| 14 | * This file is free software; you can redistribute it and/or modify |
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| 15 | * it under the terms of the GNU General Public License version 3 |
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| 16 | * as published by the Free Software Foundation. |
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| 17 | * |
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| 18 | * RoarAudio is distributed in the hope that it will be useful, |
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| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 21 | * GNU General Public License for more details. |
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| 22 | * |
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| 23 | * You should have received a copy of the GNU General Public License |
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| 24 | * along with this software; see the file COPYING. If not, write to |
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| 25 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 26 | * |
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| 27 | * NOTE for everyone want's to change something and send patches: |
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| 28 | * read README and HACKING! There a addition information on |
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| 29 | * the license of this document you need to read before you send |
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| 30 | * any patches. |
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| 31 | * |
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| 32 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 33 | * or libpulse*: |
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| 34 | * The libs libroaresd, libroararts and libroarpulse link this libroar |
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| 35 | * and are therefore GPL. Because of this it may be illigal to use |
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| 36 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 37 | */ |
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| 38 | |
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| 39 | #include <libroarpulse/libroarpulse.h> |
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[3478] | 40 | #ifdef ROAR_HAVE_H_ICONV |
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| 41 | #include <iconv.h> |
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| 42 | #endif |
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[3475] | 43 | |
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[3476] | 44 | /** Test if the specified strings qualifies as valid UTF8. Return the string if so, otherwise NULL */ |
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| 45 | const char *pa_utf8_valid(const char *str); |
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| 46 | |
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| 47 | /** Filter all invalid UTF8 characters from the specified string, returning a new fully UTF8 valid string. Don't forget to free the returned string with pa_xfree() */ |
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| 48 | char *pa_utf8_filter(const char *str); |
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| 49 | |
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[3478] | 50 | static char * _roar_pa_iconv(const char * str, const char * from, const char * to) { |
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| 51 | #ifdef ROAR_HAVE_H_ICONV |
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| 52 | iconv_t cd; |
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| 53 | char * out; |
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| 54 | char * ip, * op; |
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| 55 | size_t il, ol; |
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| 56 | size_t inlen; |
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| 57 | size_t outlen; |
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| 58 | size_t ret; |
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| 59 | |
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| 60 | if ( str == NULL ) |
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| 61 | return NULL; |
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| 62 | |
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| 63 | if ( from == NULL ) |
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| 64 | from = ""; |
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| 65 | |
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| 66 | if ( to == NULL ) |
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| 67 | to = ""; |
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| 68 | |
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| 69 | inlen = strlen(str); |
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| 70 | |
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| 71 | outlen = inlen * 1.2; |
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| 72 | |
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| 73 | if ( (out = pa_xmalloc(outlen)) == NULL ) |
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| 74 | return NULL; |
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| 75 | |
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| 76 | if ( (cd = iconv_open(from, to)) == (iconv_t)(-1) ) |
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| 77 | return NULL; |
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| 78 | |
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| 79 | while (1) { |
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| 80 | ip = (char*) str; |
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| 81 | op = out; |
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| 82 | il = inlen; |
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| 83 | ol = outlen; |
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| 84 | |
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| 85 | ret = iconv(cd, &ip, &il, &op, &ol); |
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| 86 | |
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| 87 | if ( ret != (size_t)-1 ) |
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| 88 | break; |
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| 89 | |
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| 90 | if ( errno != E2BIG ) { |
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| 91 | pa_xfree(out); |
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| 92 | out = NULL; |
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| 93 | break; |
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| 94 | } |
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| 95 | |
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| 96 | outlen += il * 1.2; |
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| 97 | out = pa_xrealloc(out, outlen); |
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| 98 | } |
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| 99 | |
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| 100 | iconv_close(cd); |
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| 101 | |
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| 102 | return out; |
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| 103 | #else |
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| 104 | return NULL; |
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| 105 | #endif |
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| 106 | } |
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| 107 | |
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[3476] | 108 | /** Convert a UTF-8 string to the current locale. Free the string using pa_xfree(). */ |
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[3478] | 109 | char* pa_utf8_to_locale (const char *str) { |
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| 110 | return _roar_pa_iconv(str, "UTF-8", NULL); |
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| 111 | } |
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[3476] | 112 | |
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| 113 | /** Convert a string in the current locale to UTF-8. Free the string using pa_xfree(). */ |
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[3478] | 114 | char* pa_locale_to_utf8 (const char *str) { |
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| 115 | return _roar_pa_iconv(str, NULL, "UTF-8"); |
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| 116 | } |
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[3476] | 117 | |
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[3475] | 118 | //ll |
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