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-rw-r--r--usr.bin/m4/look.c145
1 files changed, 0 insertions, 145 deletions
diff --git a/usr.bin/m4/look.c b/usr.bin/m4/look.c
deleted file mode 100644
index 7c750b0..0000000
--- a/usr.bin/m4/look.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * 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.
- */
-
-#ifndef lint
-static char sccsid[] = "@(#)look.c 8.1 (Berkeley) 6/6/93";
-#endif /* not lint */
-
-/*
- * look.c
- * Facility: m4 macro processor
- * by: oz
- */
-
-#include <sys/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "mdef.h"
-#include "stdd.h"
-#include "extern.h"
-
-int
-hash(name)
-register char *name;
-{
- register unsigned long h = 0;
- while (*name)
- h = (h << 5) + h + *name++;
- return (h % HASHSIZE);
-}
-
-/*
- * find name in the hash table
- */
-ndptr
-lookup(name)
-char *name;
-{
- register ndptr p;
-
- for (p = hashtab[hash(name)]; p != nil; p = p->nxtptr)
- if (STREQ(name, p->name))
- break;
- return (p);
-}
-
-/*
- * hash and create an entry in the hash table.
- * The new entry is added in front of a hash bucket.
- */
-ndptr
-addent(name)
-char *name;
-{
- register int h;
- ndptr p;
-
- h = hash(name);
- p = (ndptr) xalloc(sizeof(struct ndblock));
- p->nxtptr = hashtab[h];
- hashtab[h] = p;
- p->name = xstrdup(name);
- return p;
-}
-
-static void
-freent(p)
-ndptr p;
-{
- if (!(p->type & STATIC)) {
- free((char *) p->name);
- if (p->defn != null)
- free((char *) p->defn);
- }
- free((char *) p);
-}
-
-/*
- * remove an entry from the hashtable
- */
-void
-remhash(name, all)
-char *name;
-int all;
-{
- register int h;
- register ndptr xp, tp, mp;
-
- h = hash(name);
- mp = hashtab[h];
- tp = nil;
- while (mp != nil) {
- if (STREQ(mp->name, name)) {
- mp = mp->nxtptr;
- if (tp == nil) {
- freent(hashtab[h]);
- hashtab[h] = mp;
- }
- else {
- xp = tp->nxtptr;
- tp->nxtptr = mp;
- freent(xp);
- }
- if (!all)
- break;
- }
- else {
- tp = mp;
- mp = mp->nxtptr;
- }
- }
-}
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