Annotation of src/usr.bin/m4/mdef.h, Revision 1.23
1.23 ! millert 1: /* $OpenBSD: mdef.h,v 1.22 2002/04/28 14:37:12 espie Exp $ */
1.2 deraadt 2: /* $NetBSD: mdef.h,v 1.7 1996/01/13 23:25:27 pk Exp $ */
1.1 deraadt 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.
1.23 ! millert 19: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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: #define MACRTYPE 1
39: #define DEFITYPE 2
40: #define EXPRTYPE 3
41: #define SUBSTYPE 4
42: #define IFELTYPE 5
43: #define LENGTYPE 6
44: #define CHNQTYPE 7
45: #define SYSCTYPE 8
46: #define UNDFTYPE 9
47: #define INCLTYPE 10
48: #define SINCTYPE 11
49: #define PASTTYPE 12
50: #define SPASTYPE 13
51: #define INCRTYPE 14
52: #define IFDFTYPE 15
53: #define PUSDTYPE 16
54: #define POPDTYPE 17
55: #define SHIFTYPE 18
56: #define DECRTYPE 19
57: #define DIVRTYPE 20
58: #define UNDVTYPE 21
59: #define DIVNTYPE 22
60: #define MKTMTYPE 23
61: #define ERRPTYPE 24
62: #define M4WRTYPE 25
63: #define TRNLTYPE 26
64: #define DNLNTYPE 27
65: #define DUMPTYPE 28
66: #define CHNCTYPE 29
67: #define INDXTYPE 30
68: #define SYSVTYPE 31
69: #define EXITTYPE 32
70: #define DEFNTYPE 33
1.10 espie 71: #define SELFTYPE 34
1.14 espie 72: #define INDIRTYPE 35
73: #define BUILTINTYPE 36
74: #define PATSTYPE 37
75: #define FILENAMETYPE 38
76: #define LINETYPE 39
77: #define REGEXPTYPE 40
1.17 espie 78: #define ESYSCMDTYPE 41
1.21 espie 79: #define TRACEONTYPE 42
80: #define TRACEOFFTYPE 43
81:
1.1 deraadt 82:
1.9 espie 83: #define TYPEMASK 63 /* Keep bits really corresponding to a type. */
84: #define RECDEF 256 /* Pure recursive def, don't expand it */
1.11 espie 85: #define NOARGS 512 /* builtin needs no args */
86: #define NEEDARGS 1024 /* mark builtin that need args with this */
1.1 deraadt 87:
88: /*
89: * m4 special characters
90: */
91:
92: #define ARGFLAG '$'
93: #define LPAREN '('
94: #define RPAREN ')'
95: #define LQUOTE '`'
96: #define RQUOTE '\''
97: #define COMMA ','
98: #define SCOMMT '#'
99: #define ECOMMT '\n'
100:
101: #ifdef msdos
102: #define system(str) (-1)
103: #endif
104:
105: /*
106: * other important constants
107: */
108:
1.5 espie 109: #define EOS '\0'
1.6 espie 110: #define MAXINP 10 /* maximum include files */
111: #define MAXOUT 10 /* maximum # of diversions */
112: #define BUFSIZE 4096 /* starting size of pushback buffer */
1.15 espie 113: #define INITSTACKMAX 4096 /* starting size of call stack */
1.16 espie 114: #define STRSPMAX 4096 /* starting size of string space */
1.18 espie 115: #define MAXTOK 512 /* maximum chars in a tokn */
1.6 espie 116: #define HASHSIZE 199 /* maximum size of hashtab */
117: #define MAXCCHARS 5 /* max size of comment/quote delim */
1.1 deraadt 118:
119: #define ALL 1
120: #define TOP 0
121:
122: #define TRUE 1
123: #define FALSE 0
124: #define cycle for(;;)
125:
126: /*
127: * m4 data structures
128: */
129:
130: typedef struct ndblock *ndptr;
131:
1.9 espie 132: struct ndblock { /* hastable structure */
133: char *name; /* entry name.. */
134: char *defn; /* definition.. */
135: unsigned int type; /* type of the entry.. */
136: unsigned int hv; /* hash function value.. */
137: ndptr nxtptr; /* link to next entry.. */
1.1 deraadt 138: };
139:
140: #define nil ((ndptr) 0)
141:
142: struct keyblk {
143: char *knam; /* keyword name */
144: int ktyp; /* keyword type */
145: };
146:
147: typedef union { /* stack structure */
148: int sfra; /* frame entry */
149: char *sstr; /* string entry */
150: } stae;
151:
1.12 espie 152: struct input_file {
153: FILE *file;
154: char *name;
155: unsigned long lineno;
1.22 espie 156: unsigned long synch_lineno; /* used for -s */
1.12 espie 157: int c;
158: };
159:
160: #define CURRENT_NAME (infile[ilevel].name)
161: #define CURRENT_LINE (infile[ilevel].lineno)
1.1 deraadt 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: */
1.12 espie 169: #define gpbc() (bp > bufbase) ? *--bp : obtain_char(infile+ilevel)
1.15 espie 170: #define pushf(x) \
171: do { \
172: if (++sp == STACKMAX) \
173: enlarge_stack();\
174: mstack[sp].sfra = (x); \
175: sstack[sp] = 0; \
1.20 espie 176: } while (0)
1.15 espie 177:
178: #define pushs(x) \
179: do { \
180: if (++sp == STACKMAX) \
181: enlarge_stack();\
182: mstack[sp].sstr = (x); \
183: sstack[sp] = 1; \
1.20 espie 184: } while (0)
1.15 espie 185:
186: #define pushs1(x) \
187: do { \
188: if (++sp == STACKMAX) \
189: enlarge_stack();\
190: mstack[sp].sstr = (x); \
191: sstack[sp] = 0; \
1.20 espie 192: } while (0)
1.1 deraadt 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-1].sfra)
1.15 espie 219: #define PREVEP (mstack[fp+3].sstr)
1.1 deraadt 220: #define PREVSP (fp-3)
221: #define PREVFP (mstack[fp-2].sfra)
![[BACK]](/icons/back.gif){kind=icon}
Return to mdef.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / m4