From: Thomas Cort Date: Tue, 29 Oct 2013 13:24:41 +0000 (-0400) Subject: Importing usr.bin/fold X-Git-Tag: v3.3.0~715 X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/index.css?a=commitdiff_plain;h=refs%2Fchanges%2F86%2F1086%2F1;p=minix.git Importing usr.bin/fold Replaces commands/fold. No Minix-specific changes needed. Change-Id: Iefa9a082f900bb8c3a9f2f9f827ccbbd97c935f5 --- diff --git a/commands/Makefile b/commands/Makefile index 8bec788d8..cad684a4e 100644 --- a/commands/Makefile +++ b/commands/Makefile @@ -9,7 +9,7 @@ SUBDIR= add_route arp ash at backup btrace \ dd decomp16 DESCRIBE devmand devsize df dhcpd \ dhrystone diff diskctl dumpcore \ eject factor fbdctl \ - find fix fold format fortune fsck.mfs \ + find fix format fortune fsck.mfs \ gcore gcov-pull getty grep hexdump host \ hostaddr id ifconfig ifdef \ intr ipcrm ipcs irdpd isoread last \ diff --git a/commands/fold/Makefile b/commands/fold/Makefile deleted file mode 100644 index 12a1984bc..000000000 --- a/commands/fold/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -PROG= fold -MAN= - -.include diff --git a/commands/fold/fold.c b/commands/fold/fold.c deleted file mode 100644 index 752b9b2d4..000000000 --- a/commands/fold/fold.c +++ /dev/null @@ -1,70 +0,0 @@ -/* fold - folds long lines Author: Terrence W. Holm */ - -/* Usage: fold [ -width ] [ file ... ] */ - -#include -#include - -#define TAB 8 -#define DEFAULT_WIDTH 80 - -int column = 0; /* Current column, retained between files */ - -int main(int argc, char **argv); -void Fold(FILE *f, int width); - -int main(argc, argv) -int argc; -char *argv[]; -{ - int width = DEFAULT_WIDTH; - int i; - FILE *f; - - if (argc > 1 && argv[1][0] == '-') { - if ((width = atoi(&argv[1][1])) <= 0) { - fprintf(stderr, "Bad number for fold\n"); - exit(1); - } - --argc; - ++argv; - } - if (argc == 1) - Fold(stdin, width); - else { - for (i = 1; i < argc; ++i) { - if ((f = fopen(argv[i], "r")) == NULL) { - perror(argv[i]); - exit(1); - } - Fold(f, width); - fclose(f); - } - } - return(0); -} - - -void Fold(f, width) -FILE *f; -int width; -{ - int c; - - while ((c = getc(f)) != EOF) { - if (c == '\t') - column = (column / TAB + 1) * TAB; - else if (c == '\b') - column = column > 0 ? column - 1 : 0; - else if (c == '\n' || c == '\r') - column = 0; - else - ++column; - - if (column > width) { - putchar('\n'); - column = c == '\t' ? TAB : 1; - } - putchar(c); - } -} diff --git a/man/man1/Makefile b/man/man1/Makefile index 08142eb96..2dd7a8ff2 100644 --- a/man/man1/Makefile +++ b/man/man1/Makefile @@ -5,7 +5,7 @@ MAN= ash.1 at.1 \ df.1 dhrystone.1 dosdir.1 dosread.1 doswrite.1 \ dumpcore.1 eject.1 \ factor.1 \ - flexdoc.1 fold.1 format.1 fortune.1 \ + flexdoc.1 format.1 fortune.1 \ fsck.mfs.1 host.1 hostaddr.1 ifdef.1 \ isodir.1 isoinfo.1 isoread.1 \ last.1 loadfont.1 loadkeys.1 logger.1 \ diff --git a/man/man1/fold.1 b/man/man1/fold.1 deleted file mode 100644 index 092ef63da..000000000 --- a/man/man1/fold.1 +++ /dev/null @@ -1,35 +0,0 @@ -.TH FOLD 1 -.SH NAME -fold \- fold long lines -.SH SYNOPSIS -\fBfold\fR [\fB\-\fIn\fR]\fR [\fIfile\fR] ...\fR -.br -.de FL -.TP -\\fB\\$1\\fR -\\$2 -.. -.de EX -.TP 20 -\\fB\\$1\\fR -# \\$2 -.. -.SH OPTIONS -.TP 5 -.B \-\fIn\fR -# How long should the output lines be -.SH EXAMPLES -.TP 20 -.B fold \-60 -# Fold \fIstdin\fR to 60 characters -.TP 20 -.B fold file -# Fold \fIfile\fP to 80 characters -.SH DESCRIPTION -.PP -\fIFold\fR takes copies its input from the named file (or \fIstdin\fR, -if none is specified) to standard output. -However, lines longer than the given maximum (default 80) are broken -into multiple lines of the maximum length by inserting new line characters. -.SH "SEE ALSO" -.BR width (1). diff --git a/releasetools/nbsd_ports b/releasetools/nbsd_ports index 7d952a45a..0efcbd603 100644 --- a/releasetools/nbsd_ports +++ b/releasetools/nbsd_ports @@ -163,6 +163,7 @@ 2012/10/17 12:00:00,usr.bin/expand 2013/10/17 12:00:00,usr.bin/env 2013/05/31 12:00:00,usr.bin/finger +2012/10/17 12:00:00,usr.bin/fold 2013/03/22 12:00:00,usr.bin/from 2012/10/17 12:00:00,usr.bin/fsplit 2013/04/05 12:00:00,usr.bin/ftp diff --git a/usr.bin/Makefile b/usr.bin/Makefile index 12be0042b..7f5048319 100644 --- a/usr.bin/Makefile +++ b/usr.bin/Makefile @@ -10,7 +10,7 @@ SUBDIR= asa \ col column comm csplit ctags cut \ dirname du \ env expand \ - finger from \ + finger fold from \ fsplit ftp genassym getopt \ head indent infocmp join \ ldd leave \ diff --git a/usr.bin/fold/Makefile b/usr.bin/fold/Makefile new file mode 100644 index 000000000..6ccdd6638 --- /dev/null +++ b/usr.bin/fold/Makefile @@ -0,0 +1,6 @@ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 +# $NetBSD: Makefile,v 1.3 1995/09/01 01:42:41 jtc Exp $ + +PROG= fold + +.include diff --git a/usr.bin/fold/fold.1 b/usr.bin/fold/fold.1 new file mode 100644 index 000000000..8f3f6a105 --- /dev/null +++ b/usr.bin/fold/fold.1 @@ -0,0 +1,93 @@ +.\" $NetBSD: fold.1,v 1.17 2012/05/12 15:17:15 wiz Exp $ +.\" +.\" 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. 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. +.\" +.\" @(#)fold.1 8.1 (Berkeley) 6/6/93 +.\" +.Dd May 12, 2012 +.Dt FOLD 1 +.Os +.Sh NAME +.Nm fold +.Nd "fold long lines for finite width output device" +.Sh SYNOPSIS +.Nm +.Op Fl bs +.Op Fl w Ar width +.Op Ar +.Sh DESCRIPTION +.Nm +is a filter which folds the contents of the specified files, +or the standard input if no files are specified, +breaking the lines to have a maximum of 80 characters. +.Pp +The options are as follows: +.Bl -tag -width XwXwidthXX +.It Fl b +Count +.Ar width +in bytes rather than column positions. +.It Fl s +Fold line after the last blank character within the first +.Ar width +column positions (or bytes). +If a blank character does not exist within the width, then +a longer line will still be split at the width. +.It Fl w Ar width +Specifies +.Ar width +to use as a line width, instead of the default 80 characters. +.El +.Sh ENVIRONMENT +.Bl -tag -width indent +.It Ev LC_CTYPE +.El +.Sh EXIT STATUS +.Ex -std +.Sh SEE ALSO +.Xr expand 1 , +.Xr fmt 1 +.Sh STANDARDS +The +.Nm +utility conforms to +.St -p1003.1-2008 . +.Sh HISTORY +The +.Nm +utility appeared in +.Bx 1 . +.Sh BUGS +If underlining is present it may be messed up by folding. +.Pp +.Ar Width +should be a multiple of 8 if tabs are present, or the tabs should +be expanded using +.Xr expand 1 +before using +.Nm . diff --git a/usr.bin/fold/fold.c b/usr.bin/fold/fold.c new file mode 100644 index 000000000..52ecc3ddb --- /dev/null +++ b/usr.bin/fold/fold.c @@ -0,0 +1,248 @@ +/* $NetBSD: fold.c,v 1.17 2011/09/04 20:24:59 joerg Exp $ */ + +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kevin Ruddy. + * + * 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. 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. + */ + +#include +#ifndef lint +__COPYRIGHT("@(#) Copyright (c) 1990, 1993\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)fold.c 8.1 (Berkeley) 6/6/93"; +#endif +__RCSID("$NetBSD: fold.c,v 1.17 2011/09/04 20:24:59 joerg Exp $"); +#endif /* not lint */ + +#include +#include +#include +#include +#include +#include +#include + +#define DEFLINEWIDTH 80 + +static void fold(int); +static int new_column_position(int, wint_t); +__dead static void usage(void); + +static int count_bytes = 0; +static int split_words = 0; + +int +main(int argc, char **argv) +{ + int ch; + int width; + char *p; + + setlocale(LC_CTYPE, ""); + setprogname(argv[0]); + + width = -1; + while ((ch = getopt(argc, argv, "0123456789bsw:")) != -1) + switch (ch) { + case 'b': + count_bytes = 1; + break; + case 's': + split_words = 1; + break; + case 'w': + if ((width = atoi(optarg)) <= 0) + errx(1, "illegal width value"); + break; + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + if (width == -1) { + p = argv[optind - 1]; + if (p[0] == '-' && p[1] == ch && !p[2]) + width = atoi(++p); + else + width = atoi(argv[optind] + 1); + } + break; + default: + usage(); + } + argv += optind; + argc -= optind; + + if (width == -1) + width = DEFLINEWIDTH; + + if (!*argv) + fold(width); + else for (; *argv; ++argv) + if (!freopen(*argv, "r", stdin)) { + err (1, "%s", *argv); + /* NOTREACHED */ + } else + fold(width); + exit(0); +} + +/* + * Fold the contents of standard input to fit within WIDTH columns + * (or bytes) and write to standard output. + * + * If split_words is set, split the line at the last space character + * on the line. This flag necessitates storing the line in a buffer + * until the current column > width, or a newline or EOF is read. + * + * The buffer can grow larger than WIDTH due to backspaces and carriage + * returns embedded in the input stream. + */ +static void +fold(int width) +{ + static wchar_t *buf = NULL; + wchar_t *nbuf; + static int buf_max = 0; + wint_t ch; + int col, indx, i; + + col = indx = 0; + while ((ch = getwchar()) != WEOF) { + if (ch == L'\n') { + if (indx != 0) { + for (i = 0; i < indx; i++) + putwchar(buf[i]); + } + putwchar(L'\n'); + col = indx = 0; + continue; + } + + col = new_column_position (col, ch); + if (col > width) { + int last_space; + +#ifdef __GNUC__ + last_space = 0; /* XXX gcc */ +#endif + if (split_words) { + for (i = 0, last_space = -1; i < indx; i++) + if (buf[i] == L' ') + last_space = i; + } + + if (split_words && last_space != -1) { + for (i = 0; i < last_space; i++) + putwchar(buf[i]); + + /* increase last_space here, so we skip trailing whitespace */ + last_space++; + wmemmove (buf, buf+last_space, indx-last_space); + + indx -= last_space; + col = 0; + for (i = 0; i < indx; i++) { + col = new_column_position (col, buf[i]); + } + } else { + for (i = 0; i < indx; i++) + putwchar(buf[i]); + col = indx = 0; + } + putwchar('\n'); + + /* calculate the column position for the next line. */ + col = new_column_position (col, ch); + } + + if (indx + 1 > buf_max) { + /* Allocate buffer in LINE_MAX increments */ + if ((nbuf = realloc (buf, buf_max + 2048)) == NULL) { + err (1, "realloc"); + /* NOTREACHED */ + } + buf = nbuf; + buf_max += 2048; + } + buf[indx++] = ch; + } + + if (indx != 0) { + for (i = 0; i < indx; i++) + putwchar(buf[i]); + } +} + +/* + * calculate the column position + */ +static int +new_column_position (int col, wint_t ch) +{ + int w; + + if (!count_bytes) { + switch (ch) { + case L'\b': + if (col > 0) + --col; + break; + case L'\r': + col = 0; + break; + case L'\t': + col = (col + 8) & ~7; + break; + default: + w = wcwidth(ch); + if (w > 0) + col += w; + break; + } + } else { + char dummy[MB_LEN_MAX]; + + /* XXX: we assume stateless encoding */ + col += wcrtomb(dummy, ch, NULL); + } + + return col; +} + +static void +usage(void) +{ + (void)fprintf(stderr, + "usage: %s [-bs] [-w width] [file ...]\n", getprogname()); + exit(1); +} +