unac.h

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/* Imported from http://www.senga.org/unac/ */
/*
 * Copyright (C) 2000, 2001 Loic Dachary
 *
 * 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.
 */

/*
 * Provides functions to strip accents from a string in all the charset
 * supported by iconv(3). See the unac(3) manual page for more information.
 */

#ifndef _unac_h
#define _unac_h

#ifdef __cplusplus
extern "C" {
#endif

/* Generated by builder. Do not modify. Start defines */
#define UNAC_BLOCK_SHIFT 5
#define UNAC_BLOCK_MASK ((1 << UNAC_BLOCK_SHIFT) - 1)
#define UNAC_BLOCK_SIZE (1 << UNAC_BLOCK_SHIFT)
#define UNAC_BLOCK_COUNT 173
#define UNAC_INDEXES_SIZE (0x10000 >> UNAC_BLOCK_SHIFT)
/* Generated by builder. Do not modify. End defines */

/*
 * Return the unaccented equivalent of the UTF-16 character <c>
 * in the pointer <p>. The length of the unsigned short array pointed
 * by <p> is returned in the <l> argument.
 * The C prototype of this macro would be:
 *
 * void unac_char(const unsigned short c, unsigned short* p, unsigned short l)
 */ 
#define unac_char_utf16(c,p,l) \
  { \
    unsigned short index = unac_indexes[(c) >> UNAC_BLOCK_SHIFT]; \
    unsigned char position = (c) & UNAC_BLOCK_MASK; \
    (p) = &(unac_data_table[index][unac_positions[index][(c) & UNAC_BLOCK_MASK]]); \
    (l) = unac_positions[index][position + 1] - unac_positions[index][position]; \
    if((l) == 1 && *(p) == 0xFFFF) { \
      (p) = 0; \
      (l) = 0; \
    } \
  }

/*
 * Return unac version number.
 */
const char* unac_version(void);

/*
 * Return the unaccented equivalent of the UTF-16 string <in> of length
 * <in_length> in the pointer <out>. The length of the UTF-16 string returned
 * in <out> is stored in <out_length>. If the pointer *out is null, a new
 * string is allocated using malloc(3). If the pointer *out is not null, 
 * the available length must also be given in the *out_length argument. 
 * The pointer passed to *out must have been allocated by malloc(3) and
 * may be reallocated by realloc(3) if needs be. It is the responsibility
 * of the caller to free the pointer returned in *out.
 * The return value is 0 on success and -1 on error, in which case
 * the errno variable is set to the corresponding error code.
 */
int unac_string_utf16(const char* in, size_t in_length,
                char** out, size_t* out_length);

/*
 * The semantic of this function is stricly equal to the function
 * unac_string_utf16. The <charset> argument applies to the content of the
 * input string. It is converted to UTF-16 using iconv(3) before calling
 * the unac_string function and the result is converted from UTF-16 to
 * the specified <charset> before returning it in the <out> pointer.
 * For efficiency purpose it is recommended that the caller uses
 * unac_string and iconv(3) to save buffer allocations overhead. 
 * The return value is 0 on success and -1 on error, in which case
 * the errno variable is set to the corresponding error code.
 */
int unac_string(const char* charset,
                const char* in, size_t in_length,
                char** out, size_t* out_length);

/* Generated by builder. Do not modify. Start declarations */
extern unsigned short unac_indexes[UNAC_INDEXES_SIZE];
extern unsigned char unac_positions[UNAC_BLOCK_COUNT][UNAC_BLOCK_SIZE + 1];
extern unsigned short* unac_data_table[UNAC_BLOCK_COUNT];
extern unsigned short unac_data0[];
extern unsigned short unac_data1[];
extern unsigned short unac_data2[];
extern unsigned short unac_data3[];
extern unsigned short unac_data4[];
extern unsigned short unac_data5[];
extern unsigned short unac_data6[];
extern unsigned short unac_data7[];
extern unsigned short unac_data8[];
extern unsigned short unac_data9[];
extern unsigned short unac_data10[];
extern unsigned short unac_data11[];
extern unsigned short unac_data12[];
extern unsigned short unac_data13[];
extern unsigned short unac_data14[];
extern unsigned short unac_data15[];
extern unsigned short unac_data16[];
extern unsigned short unac_data17[];
extern unsigned short unac_data18[];
extern unsigned short unac_data19[];
extern unsigned short unac_data20[];
extern unsigned short unac_data21[];
extern unsigned short unac_data22[];
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extern unsigned short unac_data27[];
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extern unsigned short unac_data172[];
/* Generated by builder. Do not modify. End declarations */

#ifdef __cplusplus
}
#endif

#endif /* _unac_h */

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