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-rw-r--r--usr.bin/soelim/soelim.c160
1 files changed, 160 insertions, 0 deletions
diff --git a/usr.bin/soelim/soelim.c b/usr.bin/soelim/soelim.c
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+++ b/usr.bin/soelim/soelim.c
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+/*
+ * 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1980, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)soelim.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <stdio.h>
+/*
+ * soelim - a filter to process n/troff input eliminating .so's
+ *
+ * Author: Bill Joy UCB July 8, 1977
+ *
+ * This program eliminates .so's from a n/troff input stream.
+ * It can be used to prepare safe input for submission to the
+ * phototypesetter since the software supporting the operator
+ * doesn't let him do chdir.
+ *
+ * This is a kludge and the operator should be given the
+ * ability to do chdir.
+ *
+ * This program is more generally useful, it turns out, because
+ * the program tbl doesn't understand ".so" directives.
+ */
+#define STDIN_NAME "-"
+
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+
+ argc--;
+ argv++;
+ if (argc == 0) {
+ (void)process(STDIN_NAME);
+ exit(0);
+ }
+ do {
+ (void)process(argv[0]);
+ argv++;
+ argc--;
+ } while (argc > 0);
+ exit(0);
+}
+
+int process(file)
+ char *file;
+{
+ register char *cp;
+ register int c;
+ char fname[BUFSIZ];
+ FILE *soee;
+ int isfile;
+
+ if (!strcmp(file, STDIN_NAME)) {
+ soee = stdin;
+ } else {
+ soee = fopen(file, "r");
+ if (soee == NULL) {
+ perror(file);
+ return(-1);
+ }
+ }
+ for (;;) {
+ c = getc(soee);
+ if (c == EOF)
+ break;
+ if (c != '.')
+ goto simple;
+ c = getc(soee);
+ if (c != 's') {
+ putchar('.');
+ goto simple;
+ }
+ c = getc(soee);
+ if (c != 'o') {
+ printf(".s");
+ goto simple;
+ }
+ do
+ c = getc(soee);
+ while (c == ' ' || c == '\t');
+ cp = fname;
+ isfile = 0;
+ for (;;) {
+ switch (c) {
+
+ case ' ':
+ case '\t':
+ case '\n':
+ case EOF:
+ goto donename;
+
+ default:
+ *cp++ = c;
+ c = getc(soee);
+ isfile++;
+ continue;
+ }
+ }
+donename:
+ if (cp == fname) {
+ printf(".so");
+ goto simple;
+ }
+ *cp = 0;
+ if (process(fname) < 0)
+ if (isfile)
+ printf(".so %s\n", fname);
+ continue;
+simple:
+ if (c == EOF)
+ break;
+ putchar(c);
+ if (c != '\n') {
+ c = getc(soee);
+ goto simple;
+ }
+ }
+ if (soee != stdin) {
+ fclose(soee);
+ }
+ return(0);
+}
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