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	utf.h - sbase - suckless unix tools
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	utf.h (2498B)
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	1 /* MIT/X Consortium Copyright (c) 2012 Connor Lane Smith <[email protected]>
	2 *
	3 * Permission is hereby granted, free of charge, to any person obtaining…
	4 * copy of this software and associated documentation files (the "Softwa…
	5 * to deal in the Software without restriction, including without limita…
	6 * the rights to use, copy, modify, merge, publish, distribute, sublicen…
	7 * and/or sell copies of the Software, and to permit persons to whom the
	8 * Software is furnished to do so, subject to the following conditions:
	9 *
	10 * The above copyright notice and this permission notice shall be includ…
	11 * all copies or substantial portions of the Software.
	12 *
	13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRE…
	14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILI…
	15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SH…
	16 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR …
	17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISI…
	18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	19 * DEALINGS IN THE SOFTWARE.
	20 */
	21 #include <stdio.h>
	22
	23 typedef int Rune;
	24
	25 enum {
	26 UTFmax = 6, /* maximum bytes per rune */
	27 Runeself = 0x80, /* rune and utf are equal (<) */
	28 Runeerror = 0xFFFD, /* decoding error in utf */
	29 Runemax = 0x10FFFF /* maximum rune value */
	30 };
	31
	32 int runetochar(char , const Rune );
	33 int chartorune(Rune , const char );
	34 int charntorune(Rune , const char , size_t);
	35 int runelen(Rune);
	36 size_t runenlen(const Rune *, size_t);
	37 int fullrune(const char *, size_t);
	38 char utfecpy(char , char , const char );
	39 size_t utflen(const char *);
	40 size_t utfnlen(const char *, size_t);
	41 size_t utfmemlen(const char *, size_t);
	42 char utfrune(const char , Rune);
	43 char utfrrune(const char , Rune);
	44 char utfutf(const char , const char *);
	45
	46 int isalnumrune(Rune);
	47 int isalpharune(Rune);
	48 int isblankrune(Rune);
	49 int iscntrlrune(Rune);
	50 int isdigitrune(Rune);
	51 int isgraphrune(Rune);
	52 int islowerrune(Rune);
	53 int isprintrune(Rune);
	54 int ispunctrune(Rune);
	55 int isspacerune(Rune);
	56 int istitlerune(Rune);
	57 int isupperrune(Rune);
	58 int isxdigitrune(Rune);
	59
	60 Rune tolowerrune(Rune);
	61 Rune toupperrune(Rune);
	62
	63 size_t utftorunestr(const char , Rune );
	64 size_t utfntorunestr(const char , size_t, Rune );
	65
	66 int fgetrune(Rune , FILE );
	67 int efgetrune(Rune , FILE , const char *);
	68 int fputrune(const Rune , FILE );
	69 int efputrune(const Rune , FILE , const char *);