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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*	Copyright (c) 1988 AT&T	*/
     23 /*	  All Rights Reserved  	*/
     24 
     25 
     26 /*
     27  *	cscope - interactive C symbol cross-reference
     28  *
     29  *	preprocessor macro and constant definitions
     30  */
     31 
     32 /*
     33  * Copyright (c) 1999 by Sun Microsystems, Inc.
     34  * All rights reserved.
     35  */
     36 
     37 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     38 
     39 #include <limits.h>
     40 
     41 #define	ctrl(x)	(x & 037)	/* control character macro */
     42 
     43 /* database output macros that update its offset */
     44 #define	dbputc(c)		(++dboffset, (void) putc(c, newrefs))
     45 #define	dbfputs(s)		(dboffset += fputs(s, newrefs))
     46 #define	dbfprintf(s, f, a)	(dboffset += fprintf(s, f, a))
     47 
     48 /* fast string equality tests (avoids most strcmp() calls) */
     49 #define	strequal(s1, s2)	(*(s1) == *(s2) && strcmp(s1, s2) == 0)
     50 #define	strnotequal(s1, s2)	(*(s1) != *(s2) || strcmp(s1, s2) != 0)
     51 
     52 /* set the mark character for searching the cross-reference file */
     53 #define	setmark(c)	(blockmark = c, block[blocklen] = blockmark)
     54 
     55 /* get the next character in the cross-reference */
     56 /* note that blockp is assumed not to be null */
     57 #define	getrefchar()	(*(++blockp + 1) != '\0' ? *blockp : \
     58 			(readblock() != NULL ? *blockp : '\0'))
     59 
     60 /* skip the next character in the cross-reference */
     61 /*
     62  * note that blockp is assumed not to be null and that
     63  * this macro will always be in a statement by itself
     64  */
     65 #define	skiprefchar()	if (*(++blockp + 1) == '\0') (void) readblock()
     66 
     67 #define	ESC	'\033'		/* escape character */
     68 #define	MSGLEN	PATLEN + 80	/* displayed message length */
     69 #define	READ	4		/* access(2) parameter */
     70 #define	WRITE	2		/* access(2) parameter */
     71 
     72 /* these also appear in the fscanf format string in countrefs() */
     73 #define	NUMLEN	6		/* line number length */
     74 #define	PATHLEN	PATH_MAX	/* file pathname length */
     75 
     76 /* default file names */
     77 #define	INVNAME		"cscope.in.out"	/* inverted index to the database */
     78 #define	INVPOST		"cscope.po.out"	/* inverted index postings */
     79 #define	NAMEFILE	"cscope.files"	/* source file names and options */
     80 #define	REFFILE		"cscope.out"	/* symbol database */
     81 
     82 /*
     83  * cross-reference database mark characters (when new ones are added,
     84  * update the cscope.out format description in cscope.1)
     85  */
     86 #define	ASSIGNMENT	'='
     87 #define	CLASSDEF	'c'
     88 #define	DEFINE		'#'
     89 #define	DEFINEEND	')'
     90 #define	ENUMDEF		'e'
     91 #define	ESUEND		';'
     92 #define	FCNCALL		'`'
     93 #define	FCNDEF		'$'
     94 #define	FCNEND		'}'
     95 #define	GLOBALDEF	'g'
     96 #define	INCLUDE		'~'
     97 #define	LOCALDEF	'l'
     98 #define	MEMBERDEF	'm'
     99 #define	NEWFILE		'@'
    100 #define	PARAMETER	'p'
    101 #define	STRUCTDEF	's'
    102 #define	TYPEDEF		't'
    103 #define	UNIONDEF	'u'
    104 
    105 /* other scanner token types */
    106 #define	LEXEOF	0
    107 #define	IDENT	1
    108 #define	NEWLINE	2
    109 
    110 /* screen lines */
    111 #define	FLDLINE	(LINES - FIELDS - 1)	/* first input field line */
    112 #define	MSGLINE	0			/* message line */
    113 #define	PRLINE	(LINES - 1)		/* input prompt line */
    114 #define	REFLINE	3			/* first displayed reference line */
    115 
    116 /* input fields (value matches field order on screen) */
    117 #define	SYMBOL		0
    118 #define	DEFINITION	1
    119 #define	CALLEDBY	2
    120 #define	CALLING		3
    121 #define	ASSIGN		4
    122 #define	CHANGE		5
    123 #define	STRING		6
    124 #define	FILENAME	7
    125 #define	INCLUDES	8
    126 #define	FIELDS		9
    127