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ex_re.h
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ex_re.h
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/*
* This code contains changes by
* Gunnar Ritter, Freiburg i. Br., Germany, 2002. All rights reserved.
*
* Conditions 1, 2, and 4 and the no-warranty notice below apply
* to these changes.
*
*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
*
*
* Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Redistributions of source code and documentation must retain the
* above copyright notice, this list of conditions and the following
* disclaimer.
* 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.
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed or owned by Caldera
* International, Inc.
* Neither the name of Caldera International, Inc. nor the names of
* other contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
* INTERNATIONAL, INC. 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 CALDERA INTERNATIONAL, INC. 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.
*
* from ex_re.h 7.3 (Berkeley) 5/31/85
*
* @(#)ex_re.h 1.22 (gritter) 2/19/05
*/
/*
* Regular expression definitions.
* The regular expressions in ex are similar to those in ed,
* with the addition of the word boundaries from Toronto ed
* and allowing character classes to have [a-b] as in the shell.
* The numbers for the nodes below are spaced further apart then
* necessary because I at one time partially put in + and | (one or
* more and alternation.)
*/
struct regexp {
char Patbuf[2*LBSIZE + 1];
long Re_ident;
void *Expbuf;
bool Circfl;
short Nbra;
int Flags;
int Length;
};
/*
* There are three regular expressions here, the previous (in re),
* the previous substitute (in subre) and the previous scanning (in scanre).
* It would be possible to get rid of "re" by making it a stack parameter
* to the appropriate routines.
*/
var struct regexp re; /* Last re */
var struct regexp scanre; /* Last scanning re */
var struct regexp subre; /* Last substitute re */
extern char *loc1; /* Where re began to match (in linebuf) */
extern char *loc2; /* First char after re match (") */
/*
* Since the phototypesetter v7-epsilon
* C compiler doesn't have structure assignment...
*/
extern struct regexp *savere(struct regexp *);
extern struct regexp *resre(struct regexp *);
/*
* Definitions for substitute
*/
extern char *braslist[NBRA]; /* Starts of \(\)'ed text in lhs */
extern char *braelist[NBRA]; /* Ends... */
var char rhsbuf[RHSSIZE]; /* Rhs of last substitute */
#ifdef BIT8
var char rhsquo[RHSSIZE]; /* Quote indicator for rhsbuf */
#endif