1/* $OpenBSD: mdef.h,v 1.31 2011/09/27 07:24:02 espie Exp $ */ 2/* $NetBSD: mdef.h,v 1.7 1996/01/13 23:25:27 pk Exp $ */ 3 4/* 5 * Copyright (c) 1989, 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 * @(#)mdef.h 8.1 (Berkeley) 6/6/93 36 * $FreeBSD$ 37 */ 38 39#ifdef __GNUC__ 40# define UNUSED __attribute__((__unused__)) 41#else 42# define UNUSED 43#endif 44 45#define MACRTYPE 1 46#define DEFITYPE 2 47#define EXPRTYPE 3 48#define SUBSTYPE 4 49#define IFELTYPE 5 50#define LENGTYPE 6 51#define CHNQTYPE 7 52#define SYSCTYPE 8 53#define UNDFTYPE 9 54#define INCLTYPE 10 55#define SINCTYPE 11 56#define PASTTYPE 12 57#define SPASTYPE 13 58#define INCRTYPE 14 59#define IFDFTYPE 15 60#define PUSDTYPE 16 61#define POPDTYPE 17 62#define SHIFTYPE 18 63#define DECRTYPE 19 64#define DIVRTYPE 20 65#define UNDVTYPE 21 66#define DIVNTYPE 22 67#define MKTMTYPE 23 68#define ERRPTYPE 24 69#define M4WRTYPE 25 70#define TRNLTYPE 26 71#define DNLNTYPE 27 72#define DUMPTYPE 28 73#define CHNCTYPE 29 74#define INDXTYPE 30 75#define SYSVTYPE 31 76#define EXITTYPE 32 77#define DEFNTYPE 33 78#define SELFTYPE 34 79#define INDIRTYPE 35 80#define BUILTINTYPE 36 81#define PATSTYPE 37 82#define FILENAMETYPE 38 83#define LINETYPE 39 84#define REGEXPTYPE 40 85#define ESYSCMDTYPE 41 86#define TRACEONTYPE 42 87#define TRACEOFFTYPE 43 88#define FORMATTYPE 44 89 90#define BUILTIN_MARKER "__builtin_" 91 92#define TYPEMASK 63 /* Keep bits really corresponding to a type. */ 93#define RECDEF 256 /* Pure recursive def, don't expand it */ 94#define NOARGS 512 /* builtin needs no args */ 95#define NEEDARGS 1024 /* mark builtin that need args with this */ 96 97/* 98 * m4 special characters 99 */ 100 101#define ARGFLAG '$' 102#define LPAREN '(' 103#define RPAREN ')' 104#define LQUOTE '`' 105#define RQUOTE '\'' 106#define COMMA ',' 107#define SCOMMT '#' 108#define ECOMMT '\n' 109 110#ifdef msdos 111#define system(str) (-1) 112#endif 113 114/* 115 * other important constants 116 */ 117 118#define EOS '\0' 119#define MAXINP 10 /* maximum include files */ 120#define MAXOUT 10 /* maximum # of diversions */ 121#define BUFSIZE 4096 /* starting size of pushback buffer */ 122#define INITSTACKMAX 4096 /* starting size of call stack */ 123#define STRSPMAX 4096 /* starting size of string space */ 124#define MAXTOK 512 /* maximum chars in a tokn */ 125#define MAXCCHARS 5 /* max size of comment/quote delim */ 126 127#define ALL 1 128#define TOP 0 129 130#define TRUE 1 131#define FALSE 0 132#define cycle for(;;) 133 134/* 135 * m4 data structures 136 */ 137 138typedef struct ndblock *ndptr; 139 140struct macro_definition { 141 struct macro_definition *next; 142 char *defn; /* definition.. */ 143 unsigned int type; /* type of the entry.. */ 144}; 145 146 147struct ndblock { /* hashtable structure */ 148 unsigned int builtin_type; 149 unsigned int trace_flags; 150 struct macro_definition *d; 151 char name[1]; /* entry name.. */ 152}; 153 154typedef union { /* stack structure */ 155 int sfra; /* frame entry */ 156 char *sstr; /* string entry */ 157} stae; 158 159struct input_file { 160 FILE *file; 161 char *name; 162 unsigned long lineno; 163 unsigned long synch_lineno; /* used for -s */ 164 int c; 165}; 166 167#define CURRENT_NAME (infile[ilevel].name) 168#define CURRENT_LINE (infile[ilevel].lineno) 169/* 170 * macros for readibility and/or speed 171 * 172 * gpbc() - get a possibly pushed-back character 173 * pushf() - push a call frame entry onto stack 174 * pushs() - push a string pointer onto stack 175 */ 176#define gpbc() (bp > bufbase) ? *--bp : obtain_char(infile+ilevel) 177#define pushf(x) \ 178 do { \ 179 if (++sp == (int)STACKMAX) \ 180 enlarge_stack();\ 181 mstack[sp].sfra = (x); \ 182 sstack[sp] = 0; \ 183 } while (0) 184 185#define pushs(x) \ 186 do { \ 187 if (++sp == (int)STACKMAX) \ 188 enlarge_stack();\ 189 mstack[sp].sstr = (x); \ 190 sstack[sp] = 1; \ 191 } while (0) 192 193#define pushs1(x) \ 194 do { \ 195 if (++sp == (int)STACKMAX) \ 196 enlarge_stack();\ 197 mstack[sp].sstr = (x); \ 198 sstack[sp] = 0; \ 199 } while (0) 200 201/* 202 * . . 203 * | . | <-- sp | . | 204 * +-------+ +-----+ 205 * | arg 3 ----------------------->| str | 206 * +-------+ | . | 207 * | arg 2 ---PREVEP-----+ . 208 * +-------+ | 209 * . | | | 210 * +-------+ | +-----+ 211 * | plev | PARLEV +-------->| str | 212 * +-------+ | . | 213 * | type | CALTYP . 214 * +-------+ 215 * | prcf ---PREVFP--+ 216 * +-------+ | 217 * | . | PREVSP | 218 * . | 219 * +-------+ | 220 * | <----------+ 221 * +-------+ 222 * 223 */ 224#define PARLEV (mstack[fp].sfra) 225#define CALTYP (mstack[fp-2].sfra) 226#define TRACESTATUS (mstack[fp-1].sfra) 227#define PREVEP (mstack[fp+3].sstr) 228#define PREVSP (fp-4) 229#define PREVFP (mstack[fp-3].sfra) 230