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extern.h revision 1.10
      1 /*	$NetBSD: extern.h,v 1.10 2002/01/31 22:43:55 tv Exp $	*/
      2 /*	$OpenBSD: extern.h,v 1.28 2001/10/10 18:12:00 espie Exp $	*/
      3 
      4 /*-
      5  * Copyright (c) 1991, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * Ozan Yigit at York University.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the University of
     22  *	California, Berkeley and its contributors.
     23  * 4. Neither the name of the University nor the names of its contributors
     24  *    may be used to endorse or promote products derived from this software
     25  *    without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     37  * SUCH DAMAGE.
     38  *
     39  *	@(#)extern.h	8.1 (Berkeley) 6/6/93
     40  */
     41 
     42 #if HAVE_CONFIG_H
     43 #include "config.h"
     44 #endif
     45 
     46 #include <err.h>
     47 #include <unistd.h>
     48 
     49 /* eval.c */
     50 extern void	eval __P((const char *[], int, int));
     51 extern void	dodefine __P((const char *, const char *));
     52 extern unsigned long expansion_id;
     53 
     54 /* expr.c */
     55 extern int	expr __P((const char *));
     56 
     57 /* gnum4.c */
     58 extern void 	addtoincludepath __P((const char *));
     59 extern struct input_file *fopen_trypath __P((struct input_file *, const char *));
     60 extern void	doindir __P((const char *[], int));
     61 extern void	dobuiltin __P((const char *[], int));
     62 extern void	dopatsubst __P((const char *[], int));
     63 extern void	doregexp __P((const char *[], int));
     64 extern void	doprintlineno __P((struct input_file *));
     65 extern void	doprintfilename __P((struct input_file *));
     66 extern void	doesyscmd __P((const char *));
     67 
     68 
     69 /* look.c */
     70 extern ndptr	addent __P((const char *));
     71 extern unsigned	hash __P((const char *));
     72 extern ndptr	lookup __P((const char *));
     73 extern void	remhash __P((const char *, int));
     74 
     75 /* main.c */
     76 extern void outputstr __P((const char *));
     77 extern int builtin_type __P((const char *));
     78 extern const char *builtin_realname __P((int));
     79 
     80 /* misc.c */
     81 extern void	chrsave __P((int));
     82 extern char 	*compute_prevep __P((void));
     83 extern void	getdiv __P((int));
     84 extern ptrdiff_t indx __P((const char *, const char *));
     85 extern void 	initspaces __P((void));
     86 extern void	killdiv __P((void));
     87 extern void	onintr __P((int));
     88 extern void	pbnum __P((int));
     89 extern void	pbunsigned __P((unsigned long));
     90 extern void	pbstr __P((const char *));
     91 extern void	putback __P((int));
     92 extern void	*xalloc __P((size_t));
     93 extern char	*xstrdup __P((const char *));
     94 extern void	usage __P((const char *));
     95 extern void	resizedivs __P((int));
     96 extern size_t	buffer_mark __P((void));
     97 extern void	dump_buffer __P((FILE *, size_t));
     98 
     99 extern int 	obtain_char __P((struct input_file *));
    100 extern void	set_input __P((struct input_file *, FILE *, const char *));
    101 extern void	release_input __P((struct input_file *));
    102 
    103 /* speeded-up versions of chrsave/putback */
    104 #define PUTBACK(c)				\
    105 	do {					\
    106 		if (bp >= endpbb)		\
    107 			enlarge_bufspace();	\
    108 		*bp++ = (c);			\
    109 	} while(0)
    110 
    111 #define CHRSAVE(c)				\
    112 	do {					\
    113 		if (ep >= endest)		\
    114 			enlarge_strspace();	\
    115 		*ep++ = (c);			\
    116 	} while(0)
    117 
    118 /* and corresponding exposure for local symbols */
    119 extern void enlarge_bufspace __P((void));
    120 extern void enlarge_strspace __P((void));
    121 extern char *endpbb;
    122 extern char *endest;
    123 
    124 /* trace.c */
    125 extern void	mark_traced __P((const char *, int));
    126 extern int	is_traced __P((const char *));
    127 extern void	trace_file __P((const char *));
    128 extern ssize_t	trace __P((const char **, int, struct input_file *));
    129 extern void	finish_trace __P((size_t));
    130 extern void	set_trace_flags __P((const char *));
    131 extern int traced_macros;
    132 extern FILE *traceout;
    133 
    134 extern ndptr hashtab[];		/* hash table for macros etc. */
    135 extern stae *mstack;		/* stack of m4 machine */
    136 extern char *sstack;		/* shadow stack, for string space extension */
    137 extern FILE *active;		/* active output file pointer */
    138 extern struct input_file infile[];/* input file stack (0=stdin) */
    139 extern FILE **outfile;		/* diversion array(0=bitbucket) */
    140 extern int maxout;		/* maximum number of diversions */
    141 extern int fp; 			/* m4 call frame pointer */
    142 extern int ilevel;		/* input file stack pointer */
    143 extern int oindex;		/* diversion index. */
    144 extern int sp;			/* current m4 stack pointer */
    145 extern char *bp;		/* first available character */
    146 extern char *buf;		/* push-back buffer */
    147 extern char *bufbase;		/* buffer base for this ilevel */
    148 extern char *bbase[];		/* buffer base per ilevel */
    149 extern char ecommt[MAXCCHARS+1];/* end character for comment */
    150 extern char *ep;		/* first free char in strspace */
    151 extern char lquote[MAXCCHARS+1];/* left quote character (`) */
    152 extern char *m4wraps;		/* m4wrap string default. */
    153 extern char *null;		/* as it says.. just a null. */
    154 extern char rquote[MAXCCHARS+1];/* right quote character (') */
    155 extern char scommt[MAXCCHARS+1];/* start character for comment */
    156 extern int mimic_gnu;		/* behaves like gnu-m4 */
    157