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Finish up cols(1)
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2
README
2
README
@ -18,7 +18,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
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=* chroot non-posix none
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=* cksum yes none
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cmp yes none
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cols non-posix none
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#* cols non-posix none
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=* comm yes none
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= cp no -H, (-i), -L
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=* cron non-posix none
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22
cols.1
22
cols.1
@ -1,4 +1,4 @@
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.Dd December 8, 2014
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.Dd February 1, 2015
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.Dt COLS 1
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.Os sbase
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.Sh NAME
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@ -6,34 +6,36 @@
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.Nd columnize output
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.Sh SYNOPSIS
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.Nm
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.Op Fl c Ar chars
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.Op Fl c Ar num
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.Op Ar file ...
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.Sh DESCRIPTION
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.Nm
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reads each file in sequence and writes them to stdout, in as many vertical
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reads each
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.Ar file
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in sequence and writes them to stdout, in as many vertical
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columns as will fit in
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.Ar chars
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.Ar num
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character columns. If no
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.Ar file
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is given,
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.Nm
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reads from stdin.
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.Sh OPTIONS
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.Bl -tag -width xxxxxxxx
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.Bl -tag -width Ds
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.It Fl c Ar chars
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Specifies the maximum number of character columns to use
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Set the maximum number of character columns to use
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(unless the input contains lines longer than
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.Ar chars
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.Ar num
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characters). By default cols tries to figure out the width of the output
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device, if that fails it defaults to 65 chars.
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device. If that fails, it defaults to 65 chars.
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.El
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.Sh HISTORY
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.Nm
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is similar to the mc(1) command on Plan 9. It was renamed to
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is similar to mc(1) in Plan 9. It was renamed to
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.Nm
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to avoid the name collision with the popular file manager
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Midnight Commander.
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.Sh BUGS
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.Sh CAVEATS
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This implementation of
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.Nm
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assumes that each UTF-8 code point occupies one character cell,
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6
cols.c
6
cols.c
@ -12,7 +12,7 @@
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#include "util.h"
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static size_t chars = 65;
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static int cflag;
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static int cflag;
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static struct linebuf b = EMPTY_LINEBUF;
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static size_t n_columns;
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@ -58,8 +58,8 @@ main(int argc, char *argv[])
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for (l = 0; l < b.nlines; ++l) {
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len = utflen(b.lines[l]);
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bytes = strlen(b.lines[l]);
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if (len > 0 && b.lines[l][bytes-1] == '\n') {
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b.lines[l][bytes-1] = '\0';
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if (len > 0 && b.lines[l][bytes - 1] == '\n') {
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b.lines[l][bytes - 1] = '\0';
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--len;
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}
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if (len > maxlen)
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