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author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
commit | f9ab90d9d6d02989a075d0f0074496d5b1045e4b (patch) | |
tree | add7e996bac5289cdc55e6935750c352505560a9 /usr.bin/colrm | |
parent | be22b15ae2ff8d7fe06b6e14fddf0c5b444a95da (diff) | |
download | FreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.zip FreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.tar.gz |
BSD 4.4 Lite Usr.bin Sources
Diffstat (limited to 'usr.bin/colrm')
-rw-r--r-- | usr.bin/colrm/Makefile | 5 | ||||
-rw-r--r-- | usr.bin/colrm/colrm.1 | 78 | ||||
-rw-r--r-- | usr.bin/colrm/colrm.c | 167 |
3 files changed, 250 insertions, 0 deletions
diff --git a/usr.bin/colrm/Makefile b/usr.bin/colrm/Makefile new file mode 100644 index 0000000..b9c8341 --- /dev/null +++ b/usr.bin/colrm/Makefile @@ -0,0 +1,5 @@ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 + +PROG= colrm + +.include <bsd.prog.mk> diff --git a/usr.bin/colrm/colrm.1 b/usr.bin/colrm/colrm.1 new file mode 100644 index 0000000..5700b54 --- /dev/null +++ b/usr.bin/colrm/colrm.1 @@ -0,0 +1,78 @@ +.\" Copyright (c) 1980, 1990, 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. +.\" +.\" @(#)colrm.1 8.1 (Berkeley) 6/6/93 +.\" +.Dd June 6, 1993 +.Dt COLRM 1 +.Os BSD 3 +.Sh NAME +.Nm colrm +.Nd remove columns from a file +.Sh SYNOPSIS +.Nm colrm +.Op Ar start Op Ar stop +.Sh DESCRIPTION +.Nm Colrm +removes selected columns from the lines of a file. +A column is defined as a single character in a line. +Input is read from the standard input. +Output is written to the standard output. +.Pp +If only the +.Ar start +column is specified, columns numbered less than the +.Ar start +column will be written. +If both +.Ar start +and +.Ar stop +columns are specified, columns numbered less than the +.Ar start +column +or greater than the +.Ar stop +column will be written. +Column numbering starts with one, not zero. +.Pp +Tab characters increment the column count to the next multiple of eight. +Backspace characters decrement the column count by one. +.Sh SEE ALSO +.Xr awk 1 , +.Xr column 1 , +.Xr cut 1 , +.Xr paste 1 +.Sh HISTORY +The +.Nm colrm +command appeared in +.Bx 3.0 . diff --git a/usr.bin/colrm/colrm.c b/usr.bin/colrm/colrm.c new file mode 100644 index 0000000..a7c7a65 --- /dev/null +++ b/usr.bin/colrm/colrm.c @@ -0,0 +1,167 @@ +/*- + * Copyright (c) 1991, 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) 1991, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)colrm.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include <sys/types.h> +#include <limits.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define TAB 8 + +void err __P((const char *, ...)); +void check __P((FILE *)); +void usage __P((void)); + +int +main(argc, argv) + int argc; + char *argv[]; +{ + register u_long column, start, stop; + register int ch; + char *p; + + while ((ch = getopt(argc, argv, "")) != EOF) + switch(ch) { + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + start = stop = 0; + switch(argc) { + case 2: + stop = strtol(argv[1], &p, 10); + if (stop <= 0 || *p) + err("illegal column -- %s", argv[1]); + /* FALLTHROUGH */ + case 1: + start = strtol(argv[0], &p, 10); + if (start <= 0 || *p) + err("illegal column -- %s", argv[0]); + break; + case 0: + break; + default: + usage(); + } + + if (stop && start > stop) + err("illegal start and stop columns"); + + for (column = 0;;) { + switch (ch = getchar()) { + case EOF: + check(stdin); + break; + case '\b': + if (column) + --column; + break; + case '\n': + column = 0; + break; + case '\t': + column = (column + TAB) & ~(TAB - 1); + break; + default: + ++column; + break; + } + + if ((!start || column < start || stop && column > stop) && + putchar(ch) == EOF) + check(stdout); + } +} + +void +check(stream) + FILE *stream; +{ + if (feof(stream)) + exit(0); + if (ferror(stream)) + err("%s: %s", + stream == stdin ? "stdin" : "stdout", strerror(errno)); +} + +void +usage() +{ + (void)fprintf(stderr, "usage: colrm [start [stop]]\n"); + exit(1); +} + +#if __STDC__ +#include <stdarg.h> +#else +#include <varargs.h> +#endif + +void +#if __STDC__ +err(const char *fmt, ...) +#else +err(fmt, va_alist) + char *fmt; + va_dcl +#endif +{ + va_list ap; +#if __STDC__ + va_start(ap, fmt); +#else + va_start(ap); +#endif + (void)fprintf(stderr, "colrm: "); + (void)vfprintf(stderr, fmt, ap); + va_end(ap); + (void)fprintf(stderr, "\n"); + exit(1); + /* NOTREACHED */ +} |