xref: /freebsd/usr.bin/m4/extern.h (revision 6990ffd8a95caaba6858ad44ff1b3157d1efba8f)
1 /*-
2  * Copyright (c) 1991, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Ozan Yigit at York University.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  *	@(#)extern.h	8.1 (Berkeley) 6/6/93
37  * $FreeBSD$
38  */
39 
40 int	expr __P((char *));
41 ndptr	addent __P((char *));
42 void	chrsave __P((int));
43 void	cleanup __P((int));
44 void	dochc __P((char *[], int));
45 void	dochq __P((char *[], int));
46 void	dodefine __P((char *, char *));
47 void	dodefn __P((char *));
48 void	dodiv __P((int));
49 void	dodump __P((char *[], int));
50 void	doifelse __P((char *[], int));
51 int	doincl __P((char *));
52 int	dopaste __P((char *));
53 void	dopushdef __P((char *, char *));
54 void	dosub __P((char *[], int));
55 void	doundiv __P((char *[], int));
56 void	eval __P((char *[], int, int));
57 void	expand __P((char *[], int));
58 void	getdiv __P((int));
59 int	hash __P((char *));
60 int	indx __P((char *, char *));
61 void	killdiv __P((void));
62 ndptr	lookup __P((char *));
63 void	map __P((char *, char *, char *, char *));
64 void	onintr __P((int));
65 void	pbnum __P((int));
66 void    pbstr __P((unsigned char *));
67 void	putback __P((int));
68 void	remhash __P((char *, int));
69 void	usage __P((void));
70 
71 extern ndptr hashtab[];		/* hash table for macros etc. */
72 extern stae mstack[];		/* stack of m4 machine */
73 extern FILE *active;		/* active output file pointer */
74 extern FILE *infile[];		/* input file stack (0=stdin) */
75 extern FILE *outfile[];		/* diversion array(0=bitbucket) */
76 extern int fp; 			/* m4 call frame pointer */
77 extern int ilevel;		/* input file stack pointer */
78 extern int oindex;		/* diversion index. */
79 extern int sp;			/* current m4 stack pointer */
80 extern unsigned char *bp;       /* first available character */
81 extern unsigned char buf[];     /* push-back buffer */
82 extern unsigned char *bufbase;  /* buffer base for this ilevel */
83 extern unsigned char *bbase[];  /* buffer base per ilevel */
84 extern char ecommt;		/* end character for comment */
85 extern char *endest;		/* end of string space */
86 extern unsigned char *endpbb;   /* end of push-back buffer */
87 extern char *ep;		/* first free char in strspace */
88 extern char lquote;		/* left quote character (`) */
89 extern char *m4dir;		/* directory for temporary files */
90 extern char *m4temp;		/* filename for diversions */
91 extern char *m4wraps;		/* m4wrap string default. */
92 extern char *null;		/* as it says.. just a null. */
93 extern char rquote;		/* right quote character (') */
94 extern char scommt;		/* start character for comment */
95