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Annotation of src/usr.bin/expand/expand.1, Revision 1.1.1.1

1.1       deraadt     1: .\"    $NetBSD: expand.1,v 1.3 1995/09/02 06:19:45 jtc Exp $
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                     34: .\"    @(#)expand.1    8.1 (Berkeley) 6/9/93
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                     36: .Dd June 9, 1993
                     37: .Dt EXPAND 1
                     38: .Os BSD 4
                     39: .Sh NAME
                     40: .Nm expand ,
                     41: .Nm unexpand
                     42: .Nd expand tabs to spaces, and vice versa
                     43: .Sh SYNOPSIS
                     44: .Nm expand
                     45: .Op Fl Ns Ar tabstop
                     46: .Op Fl Ns Ar tab1,tab2,...,tabn
                     47: .Ar
                     48: .Nm unexpand
                     49: .Op Fl a
                     50: .Ar
                     51: .Sh DESCRIPTION
                     52: .Nm Expand
                     53: processes the named files or the standard input writing
                     54: the standard output with tabs changed into blanks.
                     55: Backspace characters are preserved into the output and decrement
                     56: the column count for tab calculations.
                     57: .Nm Expand
                     58: is useful for pre-processing character files
                     59: (before sorting, looking at specific columns, etc.) that
                     60: contain tabs.
                     61: .Pp
                     62: If a single
                     63: .Ar tabstop
                     64: argument is given, then tabs are set
                     65: .Ar tabstop
                     66: spaces apart instead of the default 8.
                     67: If multiple tabstops are given then the tabs are set at those
                     68: specific columns.
                     69: .Pp
                     70: .Nm Unexpand
                     71: puts tabs back into the data from the standard input or the named
                     72: files and writes the result on the standard output.
                     73: .Pp
                     74: Option (with
                     75: .Nm unexpand
                     76: only):
                     77: .Bl -tag -width flag
                     78: .It Fl a
                     79: By default, only leading blanks and tabs
                     80: are reconverted to maximal strings of tabs.  If the
                     81: .Fl a
                     82: option is given, then tabs are inserted whenever they would compress the
                     83: resultant file by replacing two or more characters.
                     84: .El
                     85: .Sh HISTORY
                     86: The
                     87: .Nm expand
                     88: command appeared in
                     89: .Bx 3.0 .