diff options
Diffstat (limited to 'text_cmds/expand')
| -rw-r--r-- | text_cmds/expand/expand.1 | 118 | ||||
| -rw-r--r-- | text_cmds/expand/expand.c | 200 | ||||
| -rw-r--r-- | text_cmds/expand/xcodescripts/link-man-pages.sh | 3 |
3 files changed, 321 insertions, 0 deletions
diff --git a/text_cmds/expand/expand.1 b/text_cmds/expand/expand.1 new file mode 100644 index 0000000..4fb5b07 --- /dev/null +++ b/text_cmds/expand/expand.1 @@ -0,0 +1,118 @@ +.\" 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. +.\" +.\" @(#)expand.1 8.1 (Berkeley) 6/9/93 +.\" $FreeBSD: src/usr.bin/expand/expand.1,v 1.15 2006/10/13 16:22:24 ru Exp $ +.\" +.Dd October 13, 2006 +.Dt EXPAND 1 +.Os +.Sh NAME +.Nm expand , +.Nm unexpand +.Nd expand tabs to spaces, and vice versa +.Sh SYNOPSIS +.Nm +.Oo +.Fl t +.Sm off +.Ar tab1 , tab2 , ... , tabn +.Sm on +.Oc +.Op Ar +.Nm unexpand +.Oo +.Fl a | t +.Sm off +.Ar tab1 , tab2 , ... , tabn +.Sm on +.Oc +.Op Ar +.Sh DESCRIPTION +The +.Nm +utility processes the named files or the standard input writing +the standard output with tabs changed into blanks. +Backspace characters are preserved into the output and decrement +the column count for tab calculations. +The +.Nm +utility is useful for pre-processing character files +(before sorting, looking at specific columns, etc.) that +contain tabs. +.Pp +The +.Nm unexpand +utility puts tabs back into the data from the standard input or the named +files and writes the result on the standard output. +.Pp +The following options are available: +.Bl -tag -width indent +.It Fl a +.Nm ( unexpand +only.) +By default, only leading blanks and tabs +are reconverted to maximal strings of tabs. +If the +.Fl a +option is given, then tabs are inserted whenever they would compress the +resultant file by replacing two or more characters. +.It Fl t Sm Ar tab1 , tab2 , ... , tabn Sm +Set tab stops at column positions +.Ar tab1 , tab2 , ... , tabn . +If only a single number is given, tab stops are set that number of +column positions apart instead of the default number of 8. +.El +.Sh ENVIRONMENT +The +.Ev LANG , LC_ALL +and +.Ev LC_CTYPE +environment variables affect the execution of +.Nm +and +.Nm unexpand +as described in +.Xr environ 7 . +.Sh EXIT STATUS +.Ex -std expand unexpand +.Sh STANDARDS +The +.Nm +and +.Nm unexpand +utilities conform to +.St -p1003.1-2001 . +.Sh HISTORY +The +.Nm +command appeared in +.Bx 3.0 . diff --git a/text_cmds/expand/expand.c b/text_cmds/expand/expand.c new file mode 100644 index 0000000..73a3ee0 --- /dev/null +++ b/text_cmds/expand/expand.c @@ -0,0 +1,200 @@ +/* + * 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 const char copyright[] = +"@(#) Copyright (c) 1980, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)expand.c 8.1 (Berkeley) 6/9/93"; +#endif +#endif /* not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD: src/usr.bin/expand/expand.c,v 1.15 2004/06/24 13:42:26 tjr Exp $"); + +#include <ctype.h> +#include <err.h> +#include <locale.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <wchar.h> +#include <wctype.h> + +/* + * expand - expand tabs to equivalent spaces + */ +int nstops; +int tabstops[100]; + +static void getstops(char *); +static void usage(void); + +int +main(int argc, char *argv[]) +{ + const char *curfile; + wint_t wc; + int c, column; + int n; + int rval; + int width; + + setlocale(LC_CTYPE, ""); + + /* handle obsolete syntax */ + while (argc > 1 && argv[1] && argv[1][0] == '-' && + isdigit((unsigned char)argv[1][1])) { + getstops(&argv[1][1]); + argc--; argv++; + } + + while ((c = getopt (argc, argv, "t:")) != -1) { + switch (c) { + case 't': + getstops(optarg); + break; + case '?': + default: + usage(); + /* NOTREACHED */ + } + } + argc -= optind; + argv += optind; + + rval = 0; + do { + if (argc > 0 && *argv) { + if (freopen(argv[0], "r", stdin) == NULL) { + warn("%s", argv[0]); + rval = 1; + argc--, argv++; + continue; + } + curfile = argv[0]; + argc--, argv++; + } else + curfile = "stdin"; + column = 0; + while ((wc = getwchar()) != WEOF) { + switch (wc) { + case '\t': + if (nstops == 0) { + do { + putwchar(' '); + column++; + } while (column & 07); + continue; + } + if (nstops == 1) { + do { + putwchar(' '); + column++; + } while (((column - 1) % tabstops[0]) != (tabstops[0] - 1)); + continue; + } + for (n = 0; n < nstops; n++) + if (tabstops[n] > column) + break; + if (n == nstops) { + putwchar(' '); + column++; + continue; + } + while (column < tabstops[n]) { + putwchar(' '); + column++; + } + continue; + + case '\b': + if (column) + column--; + putwchar('\b'); + continue; + + default: + putwchar(wc); + if ((width = wcwidth(wc)) > 0) + column += width; + continue; + + case '\n': + putwchar(wc); + column = 0; + continue; + } + } + if (ferror(stdin)) { + warn("%s", curfile); + rval = 1; + } + } while (argc > 0); + exit(rval); +} + +static void +getstops(char *cp) +{ + int i; + + nstops = 0; + for (;;) { + i = 0; + while (*cp >= '0' && *cp <= '9') + i = i * 10 + *cp++ - '0'; + if (i <= 0) + errx(1, "bad tab stop spec"); + if (nstops > 0 && i <= tabstops[nstops-1]) + errx(1, "bad tab stop spec"); + if (nstops == sizeof(tabstops) / sizeof(*tabstops)) + errx(1, "too many tab stops"); + tabstops[nstops++] = i; + if (*cp == 0) + break; + if (*cp != ',' && !isblank((unsigned char)*cp)) + errx(1, "bad tab stop spec"); + cp++; + } +} + +static void +usage(void) +{ + (void)fprintf (stderr, "usage: expand [-t tablist] [file ...]\n"); + exit(1); +} diff --git a/text_cmds/expand/xcodescripts/link-man-pages.sh b/text_cmds/expand/xcodescripts/link-man-pages.sh new file mode 100644 index 0000000..1a3d985 --- /dev/null +++ b/text_cmds/expand/xcodescripts/link-man-pages.sh @@ -0,0 +1,3 @@ +set -e -x +ln -f "$DSTROOT"/usr/share/man/man1/expand.1 \ + "$DSTROOT"/usr/share/man/man1/unexpand.1 |