Mercurial > dovecot > core-2.2
view src/lib-charset/charset-utf8.c @ 6908:a340d3379b90 HEAD
Added charset_to_utf8_str()
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Mon, 03 Dec 2007 14:21:21 +0200 |
parents | 65c69a53a7be |
children | 7ed926ed7aa4 |
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/* Copyright (c) 2002-2007 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "str.h" #include "unichar.h" #include "charset-utf8.h" #include <ctype.h> bool charset_is_utf8(const char *charset) { return strcasecmp(charset, "us-ascii") == 0 || strcasecmp(charset, "ascii") == 0 || strcasecmp(charset, "UTF-8") == 0 || strcasecmp(charset, "UTF8") == 0; } int charset_to_utf8_str(const char *charset, enum charset_flags flags, const char *input, string_t *output, enum charset_result *result_r) { struct charset_translation *t; size_t len = strlen(input); if (charset_to_utf8_begin(charset, flags, &t) < 0) return -1; *result_r = charset_to_utf8(t, (const unsigned char *)input, &len, output); charset_to_utf8_end(&t); return 0; } #ifndef HAVE_ICONV struct charset_translation { enum charset_flags flags; }; static struct charset_translation raw_translation = { 0 }; static struct charset_translation tc_translation = { CHARSET_FLAG_DECOMP_TITLECASE }; int charset_to_utf8_begin(const char *charset, enum charset_flags flags, struct charset_translation **t_r) { if (charset_is_utf8(charset)) { if ((flags & CHARSET_FLAG_DECOMP_TITLECASE) != 0) *t_r = &tc_translation; else *t_r = &raw_translation; return 0; } /* no support for charsets that need translation */ return -1; } void charset_to_utf8_end(struct charset_translation **t ATTR_UNUSED) { } void charset_to_utf8_reset(struct charset_translation *t ATTR_UNUSED) { } enum charset_result charset_to_utf8(struct charset_translation *t, const unsigned char *src, size_t *src_size, buffer_t *dest) { if ((t->flags & CHARSET_FLAG_DECOMP_TITLECASE) == 0) buffer_append(dest, src, *src_size); else { if (uni_utf8_to_decomposed_titlecase(src, *src_size, dest) < 0) return CHARSET_RET_INVALID_INPUT; } return CHARSET_RET_OK; } #endif