1da2e3ebdSchin /*********************************************************************** 2da2e3ebdSchin * * 3da2e3ebdSchin * This software is part of the ast package * 4*3e14f97fSRoger A. Faulkner * Copyright (c) 1982-2010 AT&T Intellectual Property * 5da2e3ebdSchin * and is licensed under the * 6da2e3ebdSchin * Common Public License, Version 1.0 * 77c2fbfb3SApril Chin * by AT&T Intellectual Property * 8da2e3ebdSchin * * 9da2e3ebdSchin * A copy of the License is available at * 10da2e3ebdSchin * http://www.opensource.org/licenses/cpl1.0.txt * 11da2e3ebdSchin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12da2e3ebdSchin * * 13da2e3ebdSchin * Information and Software Systems Research * 14da2e3ebdSchin * AT&T Research * 15da2e3ebdSchin * Florham Park NJ * 16da2e3ebdSchin * * 17da2e3ebdSchin * David Korn <dgk@research.att.com> * 18da2e3ebdSchin * * 19da2e3ebdSchin ***********************************************************************/ 20da2e3ebdSchin #pragma prototyped 21da2e3ebdSchin #ifndef fcgetc 22da2e3ebdSchin /* 23da2e3ebdSchin * David Korn 24da2e3ebdSchin * AT&T Labs 25da2e3ebdSchin * 26da2e3ebdSchin * Fast character input with sfio text streams and strings 27da2e3ebdSchin * 28da2e3ebdSchin */ 29da2e3ebdSchin 30da2e3ebdSchin #include <sfio.h> 31da2e3ebdSchin 32da2e3ebdSchin typedef struct _fcin 33da2e3ebdSchin { 34da2e3ebdSchin Sfio_t *_fcfile; /* input file pointer */ 35da2e3ebdSchin unsigned char *fcbuff; /* pointer to input buffer */ 36da2e3ebdSchin unsigned char *fclast; /* pointer to end of input buffer */ 37da2e3ebdSchin unsigned char *fcptr; /* pointer to next input char */ 38da2e3ebdSchin unsigned char fcchar; /* saved character */ 397c2fbfb3SApril Chin void (*fcfun)(Sfio_t*,const char*,int,void*); /* advance function */ 407c2fbfb3SApril Chin void *context; /* context pointer */ 41da2e3ebdSchin int fcleft; /* for multibyte boundary */ 42da2e3ebdSchin Sfoff_t fcoff; /* offset for last read */ 43da2e3ebdSchin } Fcin_t; 44da2e3ebdSchin 45da2e3ebdSchin #define fcfile() (_Fcin._fcfile) 46da2e3ebdSchin #define fcgetc(c) (((c=fcget()) || (c=fcfill())), c) 47da2e3ebdSchin #define fcget() ((int)(*_Fcin.fcptr++)) 48da2e3ebdSchin #define fcpeek(n) ((int)_Fcin.fcptr[n]) 49da2e3ebdSchin #define fcseek(n) ((char*)(_Fcin.fcptr+=(n))) 50da2e3ebdSchin #define fcfirst() ((char*)_Fcin.fcbuff) 51da2e3ebdSchin #define fcsopen(s) (_Fcin._fcfile=(Sfio_t*)0,_Fcin.fcbuff=_Fcin.fcptr=(unsigned char*)(s)) 52da2e3ebdSchin #define fctell() (_Fcin.fcoff + (_Fcin.fcptr-_Fcin.fcbuff)) 53da2e3ebdSchin #define fcsave(x) (*(x) = _Fcin) 54da2e3ebdSchin #define fcrestore(x) (_Fcin = *(x)) 55da2e3ebdSchin extern int fcfill(void); 56da2e3ebdSchin extern int fcfopen(Sfio_t*); 57da2e3ebdSchin extern int fcclose(void); 587c2fbfb3SApril Chin void fcnotify(void(*)(Sfio_t*,const char*,int,void*),void*); 59da2e3ebdSchin extern int fcmbstate(const char*,int*,int*); 60da2e3ebdSchin 61da2e3ebdSchin extern Fcin_t _Fcin; /* used by macros */ 62da2e3ebdSchin 63da2e3ebdSchin #endif /* fcgetc */ 64