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authorKarel Zak2006-12-07 00:25:32 +0100
committerKarel Zak2006-12-07 00:25:32 +0100
commit6dbe3af945a63f025561abb83275cee9ff06c57b (patch)
tree19e59eac8ac465b5bc409b5adf815b582c92f633 /text-utils/colrm.c
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Imported from util-linux-2.2 tarball.
Diffstat (limited to 'text-utils/colrm.c')
-rw-r--r--text-utils/colrm.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/text-utils/colrm.c b/text-utils/colrm.c
new file mode 100644
index 000000000..0fcf725b1
--- /dev/null
+++ b/text-utils/colrm.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 1980 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
+char copyright[] =
+"@(#) Copyright (c) 1980 Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)colrm.c 5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+#include <stdio.h>
+/*
+COLRM removes unwanted columns from a file
+ Jeff Schriebman UC Berkeley 11-74
+*/
+
+
+main(argc,argv)
+char **argv;
+{
+ register c, ct, first, last;
+
+ first = 0;
+ last = 0;
+ if (argc > 1)
+ first = getn(*++argv);
+ if (argc > 2)
+ last = getn(*++argv);
+
+start:
+ ct = 0;
+loop1:
+ c = getc(stdin);
+ if (feof(stdin))
+ goto fin;
+ if (c == '\t')
+ ct = (ct + 8) & ~7;
+ else if (c == '\b')
+ ct = ct ? ct - 1 : 0;
+ else
+ ct++;
+ if (c == '\n') {
+ putc(c, stdout);
+ goto start;
+ }
+ if (!first || ct < first) {
+ putc(c, stdout);
+ goto loop1;
+ }
+
+/* Loop getting rid of characters */
+ while (!last || ct < last) {
+ c = getc(stdin);
+ if (feof(stdin))
+ goto fin;
+ if (c == '\n') {
+ putc(c, stdout);
+ goto start;
+ }
+ if (c == '\t')
+ ct = (ct + 8) & ~7;
+ else if (c == '\b')
+ ct = ct ? ct - 1 : 0;
+ else
+ ct++;
+ }
+
+/* Output last of the line */
+ for (;;) {
+ c = getc(stdin);
+ if (feof(stdin))
+ break;
+ putc(c, stdout);
+ if (c == '\n')
+ goto start;
+ }
+fin:
+ fflush(stdout);
+ exit(0);
+}
+
+getn(ap)
+char *ap;
+{
+ register int n,c;
+ register char *p;
+
+ p = ap;
+ n = 0;
+ while ((c = *p++) >= '0' && c <= '9')
+ n = n*10 + c - '0';
+ return(n);
+}