xref: /onnv-gate/usr/src/cmd/vi/port/ex_re.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate /* Copyright (c) 1981 Regents of the University of California */
27*0Sstevel@tonic-gate #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.6	*/
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <regexpr.h>
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate  * Regular expression definitions.
32*0Sstevel@tonic-gate  * The regular expressions in ex are similar to those in ed,
33*0Sstevel@tonic-gate  * with the addition of the word boundaries from Toronto ed
34*0Sstevel@tonic-gate  * and allowing character classes to have [a-b] as in the shell.
35*0Sstevel@tonic-gate  * The numbers for the nodes below are spaced further apart then
36*0Sstevel@tonic-gate  * necessary because I at one time partially put in + and | (one or
37*0Sstevel@tonic-gate  * more and alternation.)
38*0Sstevel@tonic-gate  */
39*0Sstevel@tonic-gate #define	EXPSIZ	(ESIZE + 2)
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate struct	regexp {
42*0Sstevel@tonic-gate 	unsigned char	Expbuf[EXPSIZ];
43*0Sstevel@tonic-gate 	short	Nbra;
44*0Sstevel@tonic-gate };
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate /*
47*0Sstevel@tonic-gate  * There are three regular expressions here, the previous (in re),
48*0Sstevel@tonic-gate  * the previous substitute (in subre) and the previous scanning (in scanre).
49*0Sstevel@tonic-gate  * It would be possible to get rid of "re" by making it a stack parameter
50*0Sstevel@tonic-gate  * to the appropriate routines.
51*0Sstevel@tonic-gate  */
52*0Sstevel@tonic-gate var struct	regexp *re;		/* Last re */
53*0Sstevel@tonic-gate var struct	regexp *scanre;		/* Last scanning re */
54*0Sstevel@tonic-gate var struct	regexp *subre;		/* Last substitute re */
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate /*
57*0Sstevel@tonic-gate  * Since the phototypesetter v7-epsilon
58*0Sstevel@tonic-gate  * C compiler doesn't have structure assignment...
59*0Sstevel@tonic-gate  */
60*0Sstevel@tonic-gate void savere(struct regexp ** a);
61*0Sstevel@tonic-gate void resre(struct regexp * a);
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate /*
64*0Sstevel@tonic-gate  * Definitions for substitute
65*0Sstevel@tonic-gate  */
66*0Sstevel@tonic-gate var unsigned char	rhsbuf[RHSSIZE];	/* Rhs of last substitute */
67