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: src/usr.bin/m4/mdef.h,v 1.13 2012/11/17 01:54:24 svnexp Exp $ 37 */ 38 39 #define MACRTYPE 1 40 #define DEFITYPE 2 41 #define EXPRTYPE 3 42 #define SUBSTYPE 4 43 #define IFELTYPE 5 44 #define LENGTYPE 6 45 #define CHNQTYPE 7 46 #define SYSCTYPE 8 47 #define UNDFTYPE 9 48 #define INCLTYPE 10 49 #define SINCTYPE 11 50 #define PASTTYPE 12 51 #define SPASTYPE 13 52 #define INCRTYPE 14 53 #define IFDFTYPE 15 54 #define PUSDTYPE 16 55 #define POPDTYPE 17 56 #define SHIFTYPE 18 57 #define DECRTYPE 19 58 #define DIVRTYPE 20 59 #define UNDVTYPE 21 60 #define DIVNTYPE 22 61 #define MKTMTYPE 23 62 #define ERRPTYPE 24 63 #define M4WRTYPE 25 64 #define TRNLTYPE 26 65 #define DNLNTYPE 27 66 #define DUMPTYPE 28 67 #define CHNCTYPE 29 68 #define INDXTYPE 30 69 #define SYSVTYPE 31 70 #define EXITTYPE 32 71 #define DEFNTYPE 33 72 #define SELFTYPE 34 73 #define INDIRTYPE 35 74 #define BUILTINTYPE 36 75 #define PATSTYPE 37 76 #define FILENAMETYPE 38 77 #define LINETYPE 39 78 #define REGEXPTYPE 40 79 #define ESYSCMDTYPE 41 80 #define TRACEONTYPE 42 81 #define TRACEOFFTYPE 43 82 #define FORMATTYPE 44 83 84 #define BUILTIN_MARKER "__builtin_" 85 86 #define TYPEMASK 63 /* Keep bits really corresponding to a type. */ 87 #define RECDEF 256 /* Pure recursive def, don't expand it */ 88 #define NOARGS 512 /* builtin needs no args */ 89 #define NEEDARGS 1024 /* mark builtin that need args with this */ 90 91 /* 92 * m4 special characters 93 */ 94 95 #define ARGFLAG '$' 96 #define LPAREN '(' 97 #define RPAREN ')' 98 #define LQUOTE '`' 99 #define RQUOTE '\'' 100 #define COMMA ',' 101 #define SCOMMT '#' 102 #define ECOMMT '\n' 103 104 #ifdef msdos 105 #define system(str) (-1) 106 #endif 107 108 /* 109 * other important constants 110 */ 111 112 #define EOS '\0' 113 #define MAXINP 10 /* maximum include files */ 114 #define MAXOUT 10 /* maximum # of diversions */ 115 #define BUFSIZE 4096 /* starting size of pushback buffer */ 116 #define INITSTACKMAX 4096 /* starting size of call stack */ 117 #define STRSPMAX 4096 /* starting size of string space */ 118 #define MAXTOK 512 /* maximum chars in a tokn */ 119 #define MAXCCHARS 5 /* max size of comment/quote delim */ 120 121 #define ALL 1 122 #define TOP 0 123 124 #define TRUE 1 125 #define FALSE 0 126 127 /* 128 * m4 data structures 129 */ 130 131 typedef struct ndblock *ndptr; 132 133 struct macro_definition { 134 struct macro_definition *next; 135 char *defn; /* definition.. */ 136 unsigned int type; /* type of the entry.. */ 137 }; 138 139 140 struct ndblock { /* hashtable structure */ 141 unsigned int builtin_type; 142 unsigned int trace_flags; 143 struct macro_definition *d; 144 char name[1]; /* entry name.. */ 145 }; 146 147 typedef union { /* stack structure */ 148 int sfra; /* frame entry */ 149 char *sstr; /* string entry */ 150 } stae; 151 152 struct input_file { 153 FILE *file; 154 char *name; 155 unsigned long lineno; 156 unsigned long synch_lineno; /* used for -s */ 157 int c; 158 }; 159 160 #define CURRENT_NAME (infile[ilevel].name) 161 #define CURRENT_LINE (infile[ilevel].lineno) 162 /* 163 * macros for readibility and/or speed 164 * 165 * gpbc() - get a possibly pushed-back character 166 * pushf() - push a call frame entry onto stack 167 * pushs() - push a string pointer onto stack 168 */ 169 #define gpbc() (bp > bufbase) ? *--bp : obtain_char(infile+ilevel) 170 #define pushf(x) \ 171 do { \ 172 if (++sp == (int)STACKMAX) \ 173 enlarge_stack();\ 174 mstack[sp].sfra = (x); \ 175 sstack[sp] = 0; \ 176 } while (0) 177 178 #define pushs(x) \ 179 do { \ 180 if (++sp == (int)STACKMAX) \ 181 enlarge_stack();\ 182 mstack[sp].sstr = (x); \ 183 sstack[sp] = 1; \ 184 } while (0) 185 186 #define pushs1(x) \ 187 do { \ 188 if (++sp == (int)STACKMAX) \ 189 enlarge_stack();\ 190 mstack[sp].sstr = (x); \ 191 sstack[sp] = 0; \ 192 } while (0) 193 194 /* 195 * . . 196 * | . | <-- sp | . | 197 * +-------+ +-----+ 198 * | arg 3 ----------------------->| str | 199 * +-------+ | . | 200 * | arg 2 ---PREVEP-----+ . 201 * +-------+ | 202 * . | | | 203 * +-------+ | +-----+ 204 * | plev | PARLEV +-------->| str | 205 * +-------+ | . | 206 * | type | CALTYP . 207 * +-------+ 208 * | prcf ---PREVFP--+ 209 * +-------+ | 210 * | . | PREVSP | 211 * . | 212 * +-------+ | 213 * | <----------+ 214 * +-------+ 215 * 216 */ 217 #define PARLEV (mstack[fp].sfra) 218 #define CALTYP (mstack[fp - 2].sfra) 219 #define TRACESTATUS (mstack[fp - 1].sfra) 220 #define PREVEP (mstack[fp + 3].sstr) 221 #define PREVSP (fp - 4) 222 #define PREVFP (mstack[fp - 3].sfra) 223