utf.h (2498B)
1 /* MIT/X Consortium Copyright (c) 2012 Connor Lane Smith <cls@lubutu.com> 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a 4 * copy of this software and associated documentation files (the "Software"), 5 * to deal in the Software without restriction, including without limitation 6 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 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 included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 16 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 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 *);