1 /* $OpenBSD: mdef.h,v 1.29 2006/03/20 20:27:45 espie Exp $ */ 2 /* $NetBSD: mdef.h,v 1.13 2009/10/26 21:11:28 christos 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 */ 37 38 #ifdef __GNUC__ 39 # define UNUSED __attribute__((__unused__)) 40 #else 41 # define UNUSED 42 #endif 43 44 #define MACRTYPE 1 45 #define DEFITYPE 2 46 #define EXPRTYPE 3 47 #define SUBSTYPE 4 48 #define IFELTYPE 5 49 #define LENGTYPE 6 50 #define CHNQTYPE 7 51 #define SYSCTYPE 8 52 #define UNDFTYPE 9 53 #define INCLTYPE 10 54 #define SINCTYPE 11 55 #define PASTTYPE 12 56 #define SPASTYPE 13 57 #define INCRTYPE 14 58 #define IFDFTYPE 15 59 #define PUSDTYPE 16 60 #define POPDTYPE 17 61 #define SHIFTYPE 18 62 #define DECRTYPE 19 63 #define DIVRTYPE 20 64 #define UNDVTYPE 21 65 #define DIVNTYPE 22 66 #define MKTMTYPE 23 67 #define ERRPTYPE 24 68 #define M4WRTYPE 25 69 #define TRNLTYPE 26 70 #define DNLNTYPE 27 71 #define DUMPTYPE 28 72 #define CHNCTYPE 29 73 #define INDXTYPE 30 74 #define SYSVTYPE 31 75 #define EXITTYPE 32 76 #define DEFNTYPE 33 77 #define SELFTYPE 34 78 #define INDIRTYPE 35 79 #define BUILTINTYPE 36 80 #define PATSTYPE 37 81 #define FILENAMETYPE 38 82 #define LINETYPE 39 83 #define REGEXPTYPE 40 84 #define ESYSCMDTYPE 41 85 #define TRACEONTYPE 42 86 #define TRACEOFFTYPE 43 87 #define FORMATTYPE 44 88 89 #define BUILTIN_MARKER "__builtin_" 90 91 #define TYPEMASK 63 /* Keep bits really corresponding to a type. */ 92 #define RECDEF 256 /* Pure recursive def, don't expand it */ 93 #define NOARGS 512 /* builtin needs no args */ 94 #define NEEDARGS 1024 /* mark builtin that need args with this */ 95 96 /* 97 * m4 special characters 98 */ 99 100 #define ARGFLAG '$' 101 #define LPAREN '(' 102 #define RPAREN ')' 103 #define LQUOTE '`' 104 #define RQUOTE '\'' 105 #define COMMA ',' 106 #define SCOMMT '#' 107 #define ECOMMT '\n' 108 109 #ifdef msdos 110 #define system(str) (-1) 111 #endif 112 113 /* 114 * other important constants 115 */ 116 117 #define EOS '\0' 118 #define MAXINP 10 /* maximum include files */ 119 #define MAXOUT 10 /* maximum # of diversions */ 120 #define BUFSIZE 4096 /* starting size of pushback buffer */ 121 #define INITSTACKMAX 4096 /* starting size of call stack */ 122 #define STRSPMAX 4096 /* starting size of string space */ 123 #define MAXTOK 512 /* maximum chars in a tokn */ 124 #define HASHSIZE 199 /* maximum size of hashtab */ 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 */ 137 138 typedef struct ndblock *ndptr; 139 140 struct macro_definition { 141 struct macro_definition *next; 142 char *defn; /* definition.. */ 143 unsigned int type; /* type of the entry.. */ 144 }; 145 146 147 struct 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 }; 153 154 typedef union { /* stack structure */ 155 int sfra; /* frame entry */ 156 char *sstr; /* string entry */ 157 } stae; 158 159 struct 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 ((size_t)++sp == 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 ((size_t)++sp == 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 ((size_t)++sp == 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