1 /* $OpenBSD: mdef.h,v 1.33 2015/11/03 16:21:47 deraadt 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 /* 111 * other important constants 112 */ 113 114 #define EOS '\0' 115 #define MAXINP 10 /* maximum include files */ 116 #define MAXOUT 10 /* maximum # of diversions */ 117 #define BUFSIZE 4096 /* starting size of pushback buffer */ 118 #define INITSTACKMAX 4096 /* starting size of call stack */ 119 #define STRSPMAX 4096 /* starting size of string space */ 120 #define MAXTOK 512 /* maximum chars in a tokn */ 121 #define MAXCCHARS 5 /* max size of comment/quote delim */ 122 123 #define ALL 1 124 #define TOP 0 125 126 #define TRUE 1 127 #define FALSE 0 128 #define cycle for(;;) 129 130 /* 131 * m4 data structures 132 */ 133 134 typedef struct ndblock *ndptr; 135 136 struct macro_definition { 137 struct macro_definition *next; 138 char *defn; /* definition.. */ 139 unsigned int type; /* type of the entry.. */ 140 }; 141 142 143 struct ndblock { /* hashtable structure */ 144 unsigned int builtin_type; 145 unsigned int trace_flags; 146 struct macro_definition *d; 147 char name[1]; /* entry name.. */ 148 }; 149 150 typedef union { /* stack structure */ 151 int sfra; /* frame entry */ 152 char *sstr; /* string entry */ 153 } stae; 154 155 struct input_file { 156 FILE *file; 157 char *name; 158 unsigned long lineno; 159 unsigned long synch_lineno; /* used for -s */ 160 int c; 161 }; 162 163 #define STORAGE_STRSPACE 0 164 #define STORAGE_MACRO 1 165 #define STORAGE_OTHER 2 166 167 #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] = STORAGE_OTHER; \ 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] = STORAGE_STRSPACE; \ 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] = STORAGE_OTHER; \ 199 } while (0) 200 201 #define pushdef(p) \ 202 do { \ 203 if (++sp == (int)STACKMAX) \ 204 enlarge_stack();\ 205 mstack[sp].sstr = macro_getdef(p)->defn;\ 206 sstack[sp] = STORAGE_MACRO; \ 207 } while (0) 208 209 210 /* 211 * . . 212 * | . | <-- sp | . | 213 * +-------+ +-----+ 214 * | arg 3 ----------------------->| str | 215 * +-------+ | . | 216 * | arg 2 ---PREVEP-----+ . 217 * +-------+ | 218 * . | | | 219 * +-------+ | +-----+ 220 * | plev | PARLEV +-------->| str | 221 * +-------+ | . | 222 * | type | CALTYP . 223 * +-------+ 224 * | prcf ---PREVFP--+ 225 * +-------+ | 226 * | . | PREVSP | 227 * . | 228 * +-------+ | 229 * | <----------+ 230 * +-------+ 231 * 232 */ 233 #define PARLEV (mstack[fp].sfra) 234 #define CALTYP (mstack[fp-2].sfra) 235 #define TRACESTATUS (mstack[fp-1].sfra) 236 #define PREVEP (mstack[fp+3].sstr) 237 #define PREVSP (fp-4) 238 #define PREVFP (mstack[fp-3].sfra) 239