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Diffstat (limited to 'ex_re.h')
| -rw-r--r-- | ex_re.h | 125 |
1 files changed, 125 insertions, 0 deletions
@@ -0,0 +1,125 @@ +/* + * 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 |