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extern.h revision 1.11
      1 /*	$NetBSD: extern.h,v 1.11 2003/08/07 11:14:31 agc 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. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)extern.h	8.1 (Berkeley) 6/6/93
     36  */
     37 
     38 #if HAVE_CONFIG_H
     39 #include "config.h"
     40 #endif
     41 
     42 #include <err.h>
     43 #include <unistd.h>
     44 
     45 /* eval.c */
     46 extern void	eval __P((const char *[], int, int));
     47 extern void	dodefine __P((const char *, const char *));
     48 extern unsigned long expansion_id;
     49 
     50 /* expr.c */
     51 extern int	expr __P((const char *));
     52 
     53 /* gnum4.c */
     54 extern void 	addtoincludepath __P((const char *));
     55 extern struct input_file *fopen_trypath __P((struct input_file *, const char *));
     56 extern void	doindir __P((const char *[], int));
     57 extern void	dobuiltin __P((const char *[], int));
     58 extern void	dopatsubst __P((const char *[], int));
     59 extern void	doregexp __P((const char *[], int));
     60 extern void	doprintlineno __P((struct input_file *));
     61 extern void	doprintfilename __P((struct input_file *));
     62 extern void	doesyscmd __P((const char *));
     63 
     64 
     65 /* look.c */
     66 extern ndptr	addent __P((const char *));
     67 extern unsigned	hash __P((const char *));
     68 extern ndptr	lookup __P((const char *));
     69 extern void	remhash __P((const char *, int));
     70 
     71 /* main.c */
     72 extern void outputstr __P((const char *));
     73 extern int builtin_type __P((const char *));
     74 extern const char *builtin_realname __P((int));
     75 
     76 /* misc.c */
     77 extern void	chrsave __P((int));
     78 extern char 	*compute_prevep __P((void));
     79 extern void	getdiv __P((int));
     80 extern ptrdiff_t indx __P((const char *, const char *));
     81 extern void 	initspaces __P((void));
     82 extern void	killdiv __P((void));
     83 extern void	onintr __P((int));
     84 extern void	pbnum __P((int));
     85 extern void	pbunsigned __P((unsigned long));
     86 extern void	pbstr __P((const char *));
     87 extern void	putback __P((int));
     88 extern void	*xalloc __P((size_t));
     89 extern char	*xstrdup __P((const char *));
     90 extern void	usage __P((const char *));
     91 extern void	resizedivs __P((int));
     92 extern size_t	buffer_mark __P((void));
     93 extern void	dump_buffer __P((FILE *, size_t));
     94 
     95 extern int 	obtain_char __P((struct input_file *));
     96 extern void	set_input __P((struct input_file *, FILE *, const char *));
     97 extern void	release_input __P((struct input_file *));
     98 
     99 /* speeded-up versions of chrsave/putback */
    100 #define PUTBACK(c)				\
    101 	do {					\
    102 		if (bp >= endpbb)		\
    103 			enlarge_bufspace();	\
    104 		*bp++ = (c);			\
    105 	} while(0)
    106 
    107 #define CHRSAVE(c)				\
    108 	do {					\
    109 		if (ep >= endest)		\
    110 			enlarge_strspace();	\
    111 		*ep++ = (c);			\
    112 	} while(0)
    113 
    114 /* and corresponding exposure for local symbols */
    115 extern void enlarge_bufspace __P((void));
    116 extern void enlarge_strspace __P((void));
    117 extern char *endpbb;
    118 extern char *endest;
    119 
    120 /* trace.c */
    121 extern void	mark_traced __P((const char *, int));
    122 extern int	is_traced __P((const char *));
    123 extern void	trace_file __P((const char *));
    124 extern ssize_t	trace __P((const char **, int, struct input_file *));
    125 extern void	finish_trace __P((size_t));
    126 extern void	set_trace_flags __P((const char *));
    127 extern int traced_macros;
    128 extern FILE *traceout;
    129 
    130 extern ndptr hashtab[];		/* hash table for macros etc. */
    131 extern stae *mstack;		/* stack of m4 machine */
    132 extern char *sstack;		/* shadow stack, for string space extension */
    133 extern FILE *active;		/* active output file pointer */
    134 extern struct input_file infile[];/* input file stack (0=stdin) */
    135 extern FILE **outfile;		/* diversion array(0=bitbucket) */
    136 extern int maxout;		/* maximum number of diversions */
    137 extern int fp; 			/* m4 call frame pointer */
    138 extern int ilevel;		/* input file stack pointer */
    139 extern int oindex;		/* diversion index. */
    140 extern int sp;			/* current m4 stack pointer */
    141 extern char *bp;		/* first available character */
    142 extern char *buf;		/* push-back buffer */
    143 extern char *bufbase;		/* buffer base for this ilevel */
    144 extern char *bbase[];		/* buffer base per ilevel */
    145 extern char ecommt[MAXCCHARS+1];/* end character for comment */
    146 extern char *ep;		/* first free char in strspace */
    147 extern char lquote[MAXCCHARS+1];/* left quote character (`) */
    148 extern char *m4wraps;		/* m4wrap string default. */
    149 extern char *null;		/* as it says.. just a null. */
    150 extern char rquote[MAXCCHARS+1];/* right quote character (') */
    151 extern char scommt[MAXCCHARS+1];/* start character for comment */
    152 extern int mimic_gnu;		/* behaves like gnu-m4 */
    153