Imported Upstream version 93u+upstream

1 files changed, 71 insertions, 0 deletions

diff --git a/src/cmd/ksh93/include/fcin.h b/src/cmd/ksh93/include/fcin.h
new file mode 100644
index 0000000..1459a3a
--- /dev/null
+++ b/src/cmd/ksh93/include/fcin.h
@@ -0,0 +1,71 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1982-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                  David Korn <dgk@research.att.com>                   *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+#ifndef fcgetc
+/*
+ * David Korn
+ * AT&T Labs
+ *
+ * Fast character input with sfio text streams and strings
+ *
+ */
+
+#include	<sfio.h>
+
+typedef struct _fcin
+{
+	Sfio_t		*_fcfile;	/* input file pointer */
+	unsigned char	*fcbuff;	/* pointer to input buffer */
+	unsigned char	*fclast;	/* pointer to end of input buffer */
+	unsigned char	*fcptr;		/* pointer to next input char */
+	unsigned char	fcchar;		/* saved character */
+	short		fclen;		/* last multibyte char len */
+	void (*fcfun)(Sfio_t*,const char*,int,void*);	/* advance function */
+	void		*context;	/* context pointer */
+	int		fcleft;		/* for multibyte boundary */
+	Sfoff_t		fcoff;		/* offset for last read */
+} Fcin_t;
+
+#if SHOPT_MULTIBYTE
+#   define fcmbget(x)	(mbwide()?_fcmbget(x):fcget())
+#else
+#   define fcmbget(x)	(fcget())
+#endif
+#define fcfile()	(_Fcin._fcfile)
+#define fcgetc(c)	(((c=fcget()) || (c=fcfill())), c)
+#define	fcget()		((int)(*_Fcin.fcptr++))
+#define	fcpeek(n)	((int)_Fcin.fcptr[n])
+#define	fcseek(n)	((char*)(_Fcin.fcptr+=(n)))
+#define fcfirst()	((char*)_Fcin.fcbuff)
+#define fclast()	((char*)_Fcin.fclast)
+#define fcleft()	(_Fcin.fclast-_Fcin.fcptr)
+#define fcsopen(s)	(_Fcin._fcfile=(Sfio_t*)0,_Fcin.fclen=1,_Fcin.fcbuff=_Fcin.fcptr=(unsigned char*)(s))
+#define fctell()	(_Fcin.fcoff + (_Fcin.fcptr-_Fcin.fcbuff))
+#define fcsave(x)	(*(x) = _Fcin)
+#define fcrestore(x)	(_Fcin = *(x))
+extern int		fcfill(void);
+extern int		fcfopen(Sfio_t*);
+extern int		fcclose(void);
+void			fcnotify(void(*)(Sfio_t*,const char*,int,void*),void*);
+extern int		_fcmbget(short*);
+
+extern Fcin_t		_Fcin;		/* used by macros */
+
+#endif /* fcgetc */