From 2001db8c18bcd949f189f324f297a0204515be07 Mon Sep 17 00:00:00 2001 From: Avuton Olrich Date: Sun, 16 Jul 2006 17:49:15 +0000 Subject: Remove hosted libid3tag & libmad git-svn-id: https://svn.musicpd.org/mpd/trunk@4369 09075e82-0dd4-0310-85a5-a0d7c8717e4f --- src/libid3tag/utf8.c | 365 --------------------------------------------------- 1 file changed, 365 deletions(-) (limited to 'src/libid3tag/utf8.c') diff --git a/src/libid3tag/utf8.c b/src/libid3tag/utf8.c index 4d8649a32..e69de29bb 100644 --- a/src/libid3tag/utf8.c +++ b/src/libid3tag/utf8.c @@ -1,365 +0,0 @@ -/* - * libid3tag - ID3 tag manipulation library - * Copyright (C) 2000-2004 Underbit Technologies, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * $Id: utf8.c,v 1.9 2004/01/23 09:41:32 rob Exp $ - */ - -# ifdef HAVE_CONFIG_H -# include "config.h" -# endif - -# include "global.h" - -# include - -# include "id3tag.h" -# include "utf8.h" -# include "ucs4.h" - -/* - * NAME: utf8->length() - * DESCRIPTION: return the number of ucs4 chars represented by a utf8 string - */ -id3_length_t id3_utf8_length(id3_utf8_t const *utf8) -{ - id3_length_t length = 0; - - while (*utf8) { - if ((utf8[0] & 0x80) == 0x00) - ++length; - else if ((utf8[0] & 0xe0) == 0xc0 && - (utf8[1] & 0xc0) == 0x80) { - if (((utf8[0] & 0x1fL) << 6) >= 0x00000080L) { - ++length; - utf8 += 1; - } - } - else if ((utf8[0] & 0xf0) == 0xe0 && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80) { - if ((((utf8[0] & 0x0fL) << 12) | - ((utf8[1] & 0x3fL) << 6)) >= 0x00000800L) { - ++length; - utf8 += 2; - } - } - else if ((utf8[0] & 0xf8) == 0xf0 && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80 && - (utf8[3] & 0xc0) == 0x80) { - if ((((utf8[0] & 0x07L) << 18) | - ((utf8[1] & 0x3fL) << 12)) >= 0x00010000L) { - ++length; - utf8 += 3; - } - } - else if ((utf8[0] & 0xfc) == 0xf8 && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80 && - (utf8[3] & 0xc0) == 0x80 && - (utf8[4] & 0xc0) == 0x80) { - if ((((utf8[0] & 0x03L) << 24) | - ((utf8[0] & 0x3fL) << 18)) >= 0x00200000L) { - ++length; - utf8 += 4; - } - } - else if ((utf8[0] & 0xfe) == 0xfc && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80 && - (utf8[3] & 0xc0) == 0x80 && - (utf8[4] & 0xc0) == 0x80 && - (utf8[5] & 0xc0) == 0x80) { - if ((((utf8[0] & 0x01L) << 30) | - ((utf8[0] & 0x3fL) << 24)) >= 0x04000000L) { - ++length; - utf8 += 5; - } - } - - ++utf8; - } - - return length; -} - -/* - * NAME: utf8->size() - * DESCRIPTION: return the encoding size of a utf8 string - */ -id3_length_t id3_utf8_size(id3_utf8_t const *utf8) -{ - id3_utf8_t const *ptr = utf8; - - while (*ptr) - ++ptr; - - return ptr - utf8 + 1; -} - -/* - * NAME: utf8->ucs4duplicate() - * DESCRIPTION: duplicate and decode a utf8 string into ucs4 - */ -id3_ucs4_t *id3_utf8_ucs4duplicate(id3_utf8_t const *utf8) -{ - id3_ucs4_t *ucs4; - - ucs4 = malloc((id3_utf8_length(utf8) + 1) * sizeof(*ucs4)); - if (ucs4) - id3_utf8_decode(utf8, ucs4); - - return release(ucs4); -} - -/* - * NAME: utf8->decodechar() - * DESCRIPTION: decode a series of utf8 chars into a single ucs4 char - */ -id3_length_t id3_utf8_decodechar(id3_utf8_t const *utf8, id3_ucs4_t *ucs4) -{ - id3_utf8_t const *start = utf8; - - while (1) { - if ((utf8[0] & 0x80) == 0x00) { - *ucs4 = utf8[0]; - return utf8 - start + 1; - } - else if ((utf8[0] & 0xe0) == 0xc0 && - (utf8[1] & 0xc0) == 0x80) { - *ucs4 = - ((utf8[0] & 0x1fL) << 6) | - ((utf8[1] & 0x3fL) << 0); - if (*ucs4 >= 0x00000080L) - return utf8 - start + 2; - } - else if ((utf8[0] & 0xf0) == 0xe0 && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80) { - *ucs4 = - ((utf8[0] & 0x0fL) << 12) | - ((utf8[1] & 0x3fL) << 6) | - ((utf8[2] & 0x3fL) << 0); - if (*ucs4 >= 0x00000800L) - return utf8 - start + 3; - } - else if ((utf8[0] & 0xf8) == 0xf0 && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80 && - (utf8[3] & 0xc0) == 0x80) { - *ucs4 = - ((utf8[0] & 0x07L) << 18) | - ((utf8[1] & 0x3fL) << 12) | - ((utf8[2] & 0x3fL) << 6) | - ((utf8[3] & 0x3fL) << 0); - if (*ucs4 >= 0x00010000L) - return utf8 - start + 4; - } - else if ((utf8[0] & 0xfc) == 0xf8 && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80 && - (utf8[3] & 0xc0) == 0x80 && - (utf8[4] & 0xc0) == 0x80) { - *ucs4 = - ((utf8[0] & 0x03L) << 24) | - ((utf8[1] & 0x3fL) << 18) | - ((utf8[2] & 0x3fL) << 12) | - ((utf8[3] & 0x3fL) << 6) | - ((utf8[4] & 0x3fL) << 0); - if (*ucs4 >= 0x00200000L) - return utf8 - start + 5; - } - else if ((utf8[0] & 0xfe) == 0xfc && - (utf8[1] & 0xc0) == 0x80 && - (utf8[2] & 0xc0) == 0x80 && - (utf8[3] & 0xc0) == 0x80 && - (utf8[4] & 0xc0) == 0x80 && - (utf8[5] & 0xc0) == 0x80) { - *ucs4 = - ((utf8[0] & 0x01L) << 30) | - ((utf8[1] & 0x3fL) << 24) | - ((utf8[2] & 0x3fL) << 18) | - ((utf8[3] & 0x3fL) << 12) | - ((utf8[4] & 0x3fL) << 6) | - ((utf8[5] & 0x3fL) << 0); - if (*ucs4 >= 0x04000000L) - return utf8 - start + 6; - } - - ++utf8; - } -} - -/* - * NAME: utf8->encodechar() - * DESCRIPTION: encode a single ucs4 char into a series of up to 6 utf8 chars - */ -id3_length_t id3_utf8_encodechar(id3_utf8_t *utf8, id3_ucs4_t ucs4) -{ - if (ucs4 <= 0x0000007fL) { - utf8[0] = ucs4; - - return 1; - } - else if (ucs4 <= 0x000007ffL) { - utf8[0] = 0xc0 | ((ucs4 >> 6) & 0x1f); - utf8[1] = 0x80 | ((ucs4 >> 0) & 0x3f); - - return 2; - } - else if (ucs4 <= 0x0000ffffL) { - utf8[0] = 0xe0 | ((ucs4 >> 12) & 0x0f); - utf8[1] = 0x80 | ((ucs4 >> 6) & 0x3f); - utf8[2] = 0x80 | ((ucs4 >> 0) & 0x3f); - - return 3; - } - else if (ucs4 <= 0x001fffffL) { - utf8[0] = 0xf0 | ((ucs4 >> 18) & 0x07); - utf8[1] = 0x80 | ((ucs4 >> 12) & 0x3f); - utf8[2] = 0x80 | ((ucs4 >> 6) & 0x3f); - utf8[3] = 0x80 | ((ucs4 >> 0) & 0x3f); - - return 4; - } - else if (ucs4 <= 0x03ffffffL) { - utf8[0] = 0xf8 | ((ucs4 >> 24) & 0x03); - utf8[1] = 0x80 | ((ucs4 >> 18) & 0x3f); - utf8[2] = 0x80 | ((ucs4 >> 12) & 0x3f); - utf8[3] = 0x80 | ((ucs4 >> 6) & 0x3f); - utf8[4] = 0x80 | ((ucs4 >> 0) & 0x3f); - - return 5; - } - else if (ucs4 <= 0x7fffffffL) { - utf8[0] = 0xfc | ((ucs4 >> 30) & 0x01); - utf8[1] = 0x80 | ((ucs4 >> 24) & 0x3f); - utf8[2] = 0x80 | ((ucs4 >> 18) & 0x3f); - utf8[3] = 0x80 | ((ucs4 >> 12) & 0x3f); - utf8[4] = 0x80 | ((ucs4 >> 6) & 0x3f); - utf8[5] = 0x80 | ((ucs4 >> 0) & 0x3f); - - return 6; - } - - /* default */ - - return id3_utf8_encodechar(utf8, ID3_UCS4_REPLACEMENTCHAR); -} - -/* - * NAME: utf8->decode() - * DESCRIPTION: decode a complete utf8 string into a ucs4 string - */ -void id3_utf8_decode(id3_utf8_t const *utf8, id3_ucs4_t *ucs4) -{ - do - utf8 += id3_utf8_decodechar(utf8, ucs4); - while (*ucs4++); -} - -/* - * NAME: utf8->encode() - * DESCRIPTION: encode a complete ucs4 string into a utf8 string - */ -void id3_utf8_encode(id3_utf8_t *utf8, id3_ucs4_t const *ucs4) -{ - do - utf8 += id3_utf8_encodechar(utf8, *ucs4); - while (*ucs4++); -} - -/* - * NAME: utf8->put() - * DESCRIPTION: serialize a single utf8 character - */ -id3_length_t id3_utf8_put(id3_byte_t **ptr, id3_utf8_t utf8) -{ - if (ptr) - *(*ptr)++ = utf8; - - return 1; -} - -/* - * NAME: utf8->get() - * DESCRIPTION: deserialize a single utf8 character - */ -id3_utf8_t id3_utf8_get(id3_byte_t const **ptr) -{ - return *(*ptr)++; -} - -/* - * NAME: utf8->serialize() - * DESCRIPTION: serialize a ucs4 string using utf8 encoding - */ -id3_length_t id3_utf8_serialize(id3_byte_t **ptr, id3_ucs4_t const *ucs4, - int terminate) -{ - id3_length_t size = 0; - id3_utf8_t utf8[6], *out; - - while (*ucs4) { - switch (id3_utf8_encodechar(out = utf8, *ucs4++)) { - case 6: size += id3_utf8_put(ptr, *out++); - case 5: size += id3_utf8_put(ptr, *out++); - case 4: size += id3_utf8_put(ptr, *out++); - case 3: size += id3_utf8_put(ptr, *out++); - case 2: size += id3_utf8_put(ptr, *out++); - case 1: size += id3_utf8_put(ptr, *out++); - case 0: break; - } - } - - if (terminate) - size += id3_utf8_put(ptr, 0); - - return size; -} - -/* - * NAME: utf8->deserialize() - * DESCRIPTION: deserialize a ucs4 string using utf8 encoding - */ -id3_ucs4_t *id3_utf8_deserialize(id3_byte_t const **ptr, id3_length_t length) -{ - id3_byte_t const *end; - id3_utf8_t *utf8ptr, *utf8; - id3_ucs4_t *ucs4; - - end = *ptr + length; - - utf8 = malloc((length + 1) * sizeof(*utf8)); - if (utf8 == 0) - return 0; - - utf8ptr = utf8; - while (end - *ptr > 0 && (*utf8ptr = id3_utf8_get(ptr))) - ++utf8ptr; - - *utf8ptr = 0; - - ucs4 = malloc((id3_utf8_length(utf8) + 1) * sizeof(*ucs4)); - if (ucs4) - id3_utf8_decode(utf8, ucs4); - - free(utf8); - - return ucs4; -} -- cgit v1.2.3