177 lines
5.5 KiB
C
177 lines
5.5 KiB
C
/*
|
|
* Copyright (c) 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Ozan Yigit at York University.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)mdef.h 8.1 (Berkeley) 6/6/93
|
|
*/
|
|
|
|
#define MACRTYPE 1
|
|
#define DEFITYPE 2
|
|
#define EXPRTYPE 3
|
|
#define SUBSTYPE 4
|
|
#define IFELTYPE 5
|
|
#define LENGTYPE 6
|
|
#define CHNQTYPE 7
|
|
#define SYSCTYPE 8
|
|
#define UNDFTYPE 9
|
|
#define INCLTYPE 10
|
|
#define SINCTYPE 11
|
|
#define PASTTYPE 12
|
|
#define SPASTYPE 13
|
|
#define INCRTYPE 14
|
|
#define IFDFTYPE 15
|
|
#define PUSDTYPE 16
|
|
#define POPDTYPE 17
|
|
#define SHIFTYPE 18
|
|
#define DECRTYPE 19
|
|
#define DIVRTYPE 20
|
|
#define UNDVTYPE 21
|
|
#define DIVNTYPE 22
|
|
#define MKTMTYPE 23
|
|
#define ERRPTYPE 24
|
|
#define M4WRTYPE 25
|
|
#define TRNLTYPE 26
|
|
#define DNLNTYPE 27
|
|
#define DUMPTYPE 28
|
|
#define CHNCTYPE 29
|
|
#define INDXTYPE 30
|
|
#define SYSVTYPE 31
|
|
#define EXITTYPE 32
|
|
#define DEFNTYPE 33
|
|
|
|
#define STATIC 128
|
|
|
|
/*
|
|
* m4 special characters
|
|
*/
|
|
|
|
#define ARGFLAG '$'
|
|
#define LPAREN '('
|
|
#define RPAREN ')'
|
|
#define LQUOTE '`'
|
|
#define RQUOTE '\''
|
|
#define COMMA ','
|
|
#define SCOMMT '#'
|
|
#define ECOMMT '\n'
|
|
|
|
#ifdef msdos
|
|
#define system(str) (-1)
|
|
#endif
|
|
|
|
/*
|
|
* other important constants
|
|
*/
|
|
|
|
#define EOS (char) 0
|
|
#define MAXINP 10 /* maximum include files */
|
|
#define MAXOUT 10 /* maximum # of diversions */
|
|
#define MAXSTR 512 /* maximum size of string */
|
|
#define BUFSIZE 4096 /* size of pushback buffer */
|
|
#define STACKMAX 1024 /* size of call stack */
|
|
#define STRSPMAX 4096 /* size of string space */
|
|
#define MAXTOK MAXSTR /* maximum chars in a tokn */
|
|
#define HASHSIZE 199 /* maximum size of hashtab */
|
|
|
|
#define ALL 1
|
|
#define TOP 0
|
|
|
|
#define TRUE 1
|
|
#define FALSE 0
|
|
#define cycle for(;;)
|
|
|
|
/*
|
|
* m4 data structures
|
|
*/
|
|
|
|
typedef struct ndblock *ndptr;
|
|
|
|
struct ndblock { /* hastable structure */
|
|
char *name; /* entry name.. */
|
|
char *defn; /* definition.. */
|
|
int type; /* type of the entry.. */
|
|
ndptr nxtptr; /* link to next entry.. */
|
|
};
|
|
|
|
#define nil ((ndptr) 0)
|
|
|
|
struct keyblk {
|
|
char *knam; /* keyword name */
|
|
int ktyp; /* keyword type */
|
|
};
|
|
|
|
typedef union { /* stack structure */
|
|
int sfra; /* frame entry */
|
|
char *sstr; /* string entry */
|
|
} stae;
|
|
|
|
/*
|
|
* macros for readibility and/or speed
|
|
*
|
|
* gpbc() - get a possibly pushed-back character
|
|
* pushf() - push a call frame entry onto stack
|
|
* pushs() - push a string pointer onto stack
|
|
*/
|
|
#define gpbc() (bp > bufbase) ? *--bp : getc(infile[ilevel])
|
|
#define pushf(x) if (sp < STACKMAX) mstack[++sp].sfra = (x)
|
|
#define pushs(x) if (sp < STACKMAX) mstack[++sp].sstr = (x)
|
|
|
|
/*
|
|
* . .
|
|
* | . | <-- sp | . |
|
|
* +-------+ +-----+
|
|
* | arg 3 ----------------------->| str |
|
|
* +-------+ | . |
|
|
* | arg 2 ---PREVEP-----+ .
|
|
* +-------+ |
|
|
* . | | |
|
|
* +-------+ | +-----+
|
|
* | plev | PARLEV +-------->| str |
|
|
* +-------+ | . |
|
|
* | type | CALTYP .
|
|
* +-------+
|
|
* | prcf ---PREVFP--+
|
|
* +-------+ |
|
|
* | . | PREVSP |
|
|
* . |
|
|
* +-------+ |
|
|
* | <----------+
|
|
* +-------+
|
|
*
|
|
*/
|
|
#define PARLEV (mstack[fp].sfra)
|
|
#define CALTYP (mstack[fp-1].sfra)
|
|
#define PREVEP (mstack[fp+3].sstr)
|
|
#define PREVSP (fp-3)
|
|
#define PREVFP (mstack[fp-2].sfra)
|