1 #ifndef js_utf_h 2 #define js_utf_h 3 4 typedef unsigned short Rune; /* 16 bits */ 5 6 #define chartorune jsU_chartorune 7 #define runetochar jsU_runetochar 8 #define runelen jsU_runelen 9 #define utflen jsU_utflen 10 11 #define isalpharune jsU_isalpharune 12 #define islowerrune jsU_islowerrune 13 #define isspacerune jsU_isspacerune 14 #define istitlerune jsU_istitlerune 15 #define isupperrune jsU_isupperrune 16 #define tolowerrune jsU_tolowerrune 17 #define totitlerune jsU_totitlerune 18 #define toupperrune jsU_toupperrune 19 20 enum 21 { 22 UTFmax = 3, /* maximum bytes per rune */ 23 Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */ 24 Runeself = 0x80, /* rune and UTF sequences are the same (<) */ 25 Runeerror = 0xFFFD, /* decoding error in UTF */ 26 }; 27 28 int chartorune(Rune *rune, const char *str); 29 int runetochar(char *str, const Rune *rune); 30 int runelen(int c); 31 int utflen(const char *s); 32 33 int isalpharune(Rune c); 34 int islowerrune(Rune c); 35 int isspacerune(Rune c); 36 int istitlerune(Rune c); 37 int isupperrune(Rune c); 38 Rune tolowerrune(Rune c); 39 Rune totitlerune(Rune c); 40 Rune toupperrune(Rune c); 41 42 #endif 43