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