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authorSteven G. Johnson <stevenj@mit.edu>2014-07-18 14:28:17 -0400
committerSteven G. Johnson <stevenj@mit.edu>2014-07-18 14:28:17 -0400
commit2c4e520a1773a85f346dc3f5361c10bcbeb290e0 (patch)
tree407b26c7793c3706a050713a6753486b8b2aff22 /utf8proc.h
parent8c36e8bc9f07558455477dec67f1276edc72da27 (diff)
downloadlibutf8proc-2c4e520a1773a85f346dc3f5361c10bcbeb290e0.tar.gz
libutf8proc-2c4e520a1773a85f346dc3f5361c10bcbeb290e0.tar.bz2
utf8proc.h -> mojibake.h (closes #10)
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-/*
- * Copyright (c) 2009 Public Software Group e. V., Berlin, Germany
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-
-/*
- * File name: utf8proc.h
- *
- * Description:
- * Header files for libutf8proc, which is a mapping tool for UTF-8 strings
- * with following features:
- * - decomposing and composing of strings
- * - replacing compatibility characters with their equivalents
- * - stripping of "default ignorable characters"
- * like SOFT-HYPHEN or ZERO-WIDTH-SPACE
- * - folding of certain characters for string comparison
- * (e.g. HYPHEN U+2010 and MINUS U+2212 to ASCII "-")
- * (see "LUMP" option)
- * - optional rejection of strings containing non-assigned code points
- * - stripping of control characters
- * - stripping of character marks (accents, etc.)
- * - transformation of LF, CRLF, CR and NEL to line-feed (LF)
- * or to the unicode chararacters for paragraph separation (PS)
- * or line separation (LS).
- * - unicode case folding (for case insensitive string comparisons)
- * - rejection of illegal UTF-8 data
- * (i.e. UTF-8 encoded UTF-16 surrogates)
- * - support for korean hangul characters
- * Unicode Version 5.0.0 is supported.
- */
-
-
-#ifndef UTF8PROC_H
-#define UTF8PROC_H
-
-
-#include <stdlib.h>
-#include <sys/types.h>
-#ifdef _MSC_VER
-typedef signed char int8_t;
-typedef unsigned char uint8_t;
-typedef short int16_t;
-typedef unsigned short uint16_t;
-typedef int int32_t;
-# ifdef _WIN64
-# define ssize_t __int64
-# else
-# define ssize_t int
-# endif
-# ifndef __cplusplus
-typedef unsigned char bool;
-enum {false, true};
-# endif
-#else
-# include <stdbool.h>
-# include <inttypes.h>
-#endif
-#include <limits.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef SSIZE_MAX
-#define SSIZE_MAX ((size_t)SIZE_MAX/2)
-#endif
-
-#define UTF8PROC_NULLTERM (1<<0)
-#define UTF8PROC_STABLE (1<<1)
-#define UTF8PROC_COMPAT (1<<2)
-#define UTF8PROC_COMPOSE (1<<3)
-#define UTF8PROC_DECOMPOSE (1<<4)
-#define UTF8PROC_IGNORE (1<<5)
-#define UTF8PROC_REJECTNA (1<<6)
-#define UTF8PROC_NLF2LS (1<<7)
-#define UTF8PROC_NLF2PS (1<<8)
-#define UTF8PROC_NLF2LF (UTF8PROC_NLF2LS | UTF8PROC_NLF2PS)
-#define UTF8PROC_STRIPCC (1<<9)
-#define UTF8PROC_CASEFOLD (1<<10)
-#define UTF8PROC_CHARBOUND (1<<11)
-#define UTF8PROC_LUMP (1<<12)
-#define UTF8PROC_STRIPMARK (1<<13)
-/*
- * Flags being regarded by several functions in the library:
- * NULLTERM: The given UTF-8 input is NULL terminated.
- * STABLE: Unicode Versioning Stability has to be respected.
- * COMPAT: Compatiblity decomposition
- * (i.e. formatting information is lost)
- * COMPOSE: Return a result with composed characters.
- * DECOMPOSE: Return a result with decomposed characters.
- * IGNORE: Strip "default ignorable characters"
- * REJECTNA: Return an error, if the input contains unassigned
- * code points.
- * NLF2LS: Indicating that NLF-sequences (LF, CRLF, CR, NEL) are
- * representing a line break, and should be converted to the
- * unicode character for line separation (LS).
- * NLF2PS: Indicating that NLF-sequences are representing a paragraph
- * break, and should be converted to the unicode character for
- * paragraph separation (PS).
- * NLF2LF: Indicating that the meaning of NLF-sequences is unknown.
- * STRIPCC: Strips and/or convers control characters.
- * NLF-sequences are transformed into space, except if one of
- * the NLF2LS/PS/LF options is given.
- * HorizontalTab (HT) and FormFeed (FF) are treated as a
- * NLF-sequence in this case.
- * All other control characters are simply removed.
- * CASEFOLD: Performs unicode case folding, to be able to do a
- * case-insensitive string comparison.
- * CHARBOUND: Inserts 0xFF bytes at the beginning of each sequence which
- * is representing a single grapheme cluster (see UAX#29).
- * LUMP: Lumps certain characters together
- * (e.g. HYPHEN U+2010 and MINUS U+2212 to ASCII "-").
- * (See lump.txt for details.)
- * If NLF2LF is set, this includes a transformation of
- * paragraph and line separators to ASCII line-feed (LF).
- * STRIPMARK: Strips all character markings
- * (non-spacing, spacing and enclosing) (i.e. accents)
- * NOTE: this option works only with COMPOSE or DECOMPOSE
- */
-
-#define UTF8PROC_ERROR_NOMEM -1
-#define UTF8PROC_ERROR_OVERFLOW -2
-#define UTF8PROC_ERROR_INVALIDUTF8 -3
-#define UTF8PROC_ERROR_NOTASSIGNED -4
-#define UTF8PROC_ERROR_INVALIDOPTS -5
-/*
- * Error codes being returned by almost all functions:
- * ERROR_NOMEM: Memory could not be allocated.
- * ERROR_OVERFLOW: The given string is too long to be processed.
- * ERROR_INVALIDUTF8: The given string is not a legal UTF-8 string.
- * ERROR_NOTASSIGNED: The REJECTNA flag was set,
- * and an unassigned code point was found.
- * ERROR_INVALIDOPTS: Invalid options have been used.
- */
-
-typedef int16_t utf8proc_propval_t;
-typedef struct utf8proc_property_struct {
- utf8proc_propval_t category;
- utf8proc_propval_t combining_class;
- utf8proc_propval_t bidi_class;
- utf8proc_propval_t decomp_type;
- const int32_t *decomp_mapping;
- unsigned bidi_mirrored:1;
- int32_t uppercase_mapping;
- int32_t lowercase_mapping;
- int32_t titlecase_mapping;
- int32_t comb1st_index;
- int32_t comb2nd_index;
- unsigned comp_exclusion:1;
- unsigned ignorable:1;
- unsigned control_boundary:1;
- unsigned extend:1;
- const int32_t *casefold_mapping;
-} utf8proc_property_t;
-
-#define UTF8PROC_CATEGORY_LU 1
-#define UTF8PROC_CATEGORY_LL 2
-#define UTF8PROC_CATEGORY_LT 3
-#define UTF8PROC_CATEGORY_LM 4
-#define UTF8PROC_CATEGORY_LO 5
-#define UTF8PROC_CATEGORY_MN 6
-#define UTF8PROC_CATEGORY_MC 7
-#define UTF8PROC_CATEGORY_ME 8
-#define UTF8PROC_CATEGORY_ND 9
-#define UTF8PROC_CATEGORY_NL 10
-#define UTF8PROC_CATEGORY_NO 11
-#define UTF8PROC_CATEGORY_PC 12
-#define UTF8PROC_CATEGORY_PD 13
-#define UTF8PROC_CATEGORY_PS 14
-#define UTF8PROC_CATEGORY_PE 15
-#define UTF8PROC_CATEGORY_PI 16
-#define UTF8PROC_CATEGORY_PF 17
-#define UTF8PROC_CATEGORY_PO 18
-#define UTF8PROC_CATEGORY_SM 19
-#define UTF8PROC_CATEGORY_SC 20
-#define UTF8PROC_CATEGORY_SK 21
-#define UTF8PROC_CATEGORY_SO 22
-#define UTF8PROC_CATEGORY_ZS 23
-#define UTF8PROC_CATEGORY_ZL 24
-#define UTF8PROC_CATEGORY_ZP 25
-#define UTF8PROC_CATEGORY_CC 26
-#define UTF8PROC_CATEGORY_CF 27
-#define UTF8PROC_CATEGORY_CS 28
-#define UTF8PROC_CATEGORY_CO 29
-#define UTF8PROC_CATEGORY_CN 30
-#define UTF8PROC_BIDI_CLASS_L 1
-#define UTF8PROC_BIDI_CLASS_LRE 2
-#define UTF8PROC_BIDI_CLASS_LRO 3
-#define UTF8PROC_BIDI_CLASS_R 4
-#define UTF8PROC_BIDI_CLASS_AL 5
-#define UTF8PROC_BIDI_CLASS_RLE 6
-#define UTF8PROC_BIDI_CLASS_RLO 7
-#define UTF8PROC_BIDI_CLASS_PDF 8
-#define UTF8PROC_BIDI_CLASS_EN 9
-#define UTF8PROC_BIDI_CLASS_ES 10
-#define UTF8PROC_BIDI_CLASS_ET 11
-#define UTF8PROC_BIDI_CLASS_AN 12
-#define UTF8PROC_BIDI_CLASS_CS 13
-#define UTF8PROC_BIDI_CLASS_NSM 14
-#define UTF8PROC_BIDI_CLASS_BN 15
-#define UTF8PROC_BIDI_CLASS_B 16
-#define UTF8PROC_BIDI_CLASS_S 17
-#define UTF8PROC_BIDI_CLASS_WS 18
-#define UTF8PROC_BIDI_CLASS_ON 19
-#define UTF8PROC_DECOMP_TYPE_FONT 1
-#define UTF8PROC_DECOMP_TYPE_NOBREAK 2
-#define UTF8PROC_DECOMP_TYPE_INITIAL 3
-#define UTF8PROC_DECOMP_TYPE_MEDIAL 4
-#define UTF8PROC_DECOMP_TYPE_FINAL 5
-#define UTF8PROC_DECOMP_TYPE_ISOLATED 6
-#define UTF8PROC_DECOMP_TYPE_CIRCLE 7
-#define UTF8PROC_DECOMP_TYPE_SUPER 8
-#define UTF8PROC_DECOMP_TYPE_SUB 9
-#define UTF8PROC_DECOMP_TYPE_VERTICAL 10
-#define UTF8PROC_DECOMP_TYPE_WIDE 11
-#define UTF8PROC_DECOMP_TYPE_NARROW 12
-#define UTF8PROC_DECOMP_TYPE_SMALL 13
-#define UTF8PROC_DECOMP_TYPE_SQUARE 14
-#define UTF8PROC_DECOMP_TYPE_FRACTION 15
-#define UTF8PROC_DECOMP_TYPE_COMPAT 16
-
-extern const int8_t utf8proc_utf8class[256];
-
-const char *utf8proc_version(void);
-
-const char *utf8proc_errmsg(ssize_t errcode);
-/*
- * Returns a static error string for the given error code.
- */
-
-ssize_t utf8proc_iterate(const uint8_t *str, ssize_t strlen, int32_t *dst);
-/*
- * Reads a single char from the UTF-8 sequence being pointed to by 'str'.
- * The maximum number of bytes read is 'strlen', unless 'strlen' is
- * negative.
- * If a valid unicode char could be read, it is stored in the variable
- * being pointed to by 'dst', otherwise that variable will be set to -1.
- * In case of success the number of bytes read is returned, otherwise a
- * negative error code is returned.
- */
-
-bool utf8proc_codepoint_valid(int32_t uc);
-/*
- * Returns 1, if the given unicode code-point is valid, otherwise 0.
- */
-
-ssize_t utf8proc_encode_char(int32_t uc, uint8_t *dst);
-/*
- * Encodes the unicode char with the code point 'uc' as an UTF-8 string in
- * the byte array being pointed to by 'dst'. This array has to be at least
- * 4 bytes long.
- * In case of success the number of bytes written is returned,
- * otherwise 0.
- * This function does not check if 'uc' is a valid unicode code point.
- */
-
-const utf8proc_property_t *utf8proc_get_property(int32_t uc);
-/*
- * Returns a pointer to a (constant) struct containing information about
- * the unicode char with the given code point 'uc'.
- * If the character is not existent a pointer to a special struct is
- * returned, where 'category' is a NULL pointer.
- * WARNING: The parameter 'uc' has to be in the range of 0x0000 to
- * 0x10FFFF, otherwise the program might crash!
- */
-
-ssize_t utf8proc_decompose_char(
- int32_t uc, int32_t *dst, ssize_t bufsize,
- int options, int *last_boundclass
-);
-/*
- * Writes a decomposition of the unicode char 'uc' into the array being
- * pointed to by 'dst'.
- * Following flags in the 'options' field are regarded:
- * REJECTNA: an unassigned unicode code point leads to an error
- * IGNORE: "default ignorable" chars are stripped
- * CASEFOLD: unicode casefolding is applied
- * COMPAT: replace certain characters with their
- * compatibility decomposition
- * CHARBOUND: Inserts 0xFF bytes before each grapheme cluster
- * LUMP: lumps certain different characters together
- * STRIPMARK: removes all character marks
- * The pointer 'last_boundclass' has to point to an integer variable which
- * is storing the last character boundary class, if the CHARBOUND option
- * is used.
- * In case of success the number of chars written is returned,
- * in case of an error, a negative error code is returned.
- * If the number of written chars would be bigger than 'bufsize',
- * the buffer (up to 'bufsize') has inpredictable data, and the needed
- * buffer size is returned.
- * WARNING: The parameter 'uc' has to be in the range of 0x0000 to
- * 0x10FFFF, otherwise the program might crash!
- */
-
-ssize_t utf8proc_decompose(
- const uint8_t *str, ssize_t strlen,
- int32_t *buffer, ssize_t bufsize, int options
-);
-/*
- * Does the same as 'utf8proc_decompose_char', but acts on a whole UTF-8
- * string, and orders the decomposed sequences correctly.
- * If the NULLTERM flag in 'options' is set, processing will be stopped,
- * when a NULL byte is encounted, otherwise 'strlen' bytes are processed.
- * The result in form of unicode code points is written into the buffer
- * being pointed to by 'buffer', having the length of 'bufsize' entries.
- * In case of success the number of chars written is returned,
- * in case of an error, a negative error code is returned.
- * If the number of written chars would be bigger than 'bufsize',
- * the buffer (up to 'bufsize') has inpredictable data, and the needed
- * buffer size is returned.
- */
-
-ssize_t utf8proc_reencode(int32_t *buffer, ssize_t length, int options);
-/*
- * Reencodes the sequence of unicode characters given by the pointer
- * 'buffer' and 'length' as UTF-8.
- * The result is stored in the same memory area where the data is read.
- * Following flags in the 'options' field are regarded:
- * NLF2LS: converts LF, CRLF, CR and NEL into LS
- * NLF2PS: converts LF, CRLF, CR and NEL into PS
- * NLF2LF: converts LF, CRLF, CR and NEL into LF
- * STRIPCC: strips or converts all non-affected control characters
- * COMPOSE: tries to combine decomposed characters into composite
- * characters
- * STABLE: prohibits combining characters which would violate
- * the unicode versioning stability
- * In case of success the length of the resulting UTF-8 string is
- * returned, otherwise a negative error code is returned.
- * WARNING: The amount of free space being pointed to by 'buffer', has to
- * exceed the amount of the input data by one byte, and the
- * entries of the array pointed to by 'str' have to be in the
- * range of 0x0000 to 0x10FFFF, otherwise the program might
- * crash!
- */
-
-ssize_t utf8proc_map(
- const uint8_t *str, ssize_t strlen, uint8_t **dstptr, int options
-);
-/*
- * Maps the given UTF-8 string being pointed to by 'str' to a new UTF-8
- * string, which is allocated dynamically, and afterwards pointed to by
- * the pointer being pointed to by 'dstptr'.
- * If the NULLTERM flag in the 'options' field is set, the length is
- * determined by a NULL terminator, otherwise the parameter 'strlen' is
- * evaluated to determine the string length, but in any case the result
- * will be NULL terminated (though it might contain NULL characters
- * before). Other flags in the 'options' field are passed to the functions
- * defined above, and regarded as described.
- * In case of success the length of the new string is returned,
- * otherwise a negative error code is returned.
- * NOTICE: The memory of the new UTF-8 string will have been allocated with
- * 'malloc', and has theirfore to be freed with 'free'.
- */
-
-uint8_t *utf8proc_NFD(const uint8_t *str);
-uint8_t *utf8proc_NFC(const uint8_t *str);
-uint8_t *utf8proc_NFKD(const uint8_t *str);
-uint8_t *utf8proc_NFKC(const uint8_t *str);
-/*
- * Returns a pointer to newly allocated memory of a NFD, NFC, NFKD or NFKC
- * normalized version of the null-terminated string 'str'.
- */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-