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Diff for /src/usr.bin/expand/expand.1 between version 1.9 and 1.10

version 1.9, 2003/10/27 12:24:11 version 1.10, 2006/10/16 15:45:09
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 .Nd expand tabs to spaces, and vice versa  .Nd expand tabs to spaces, and vice versa
 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm expand  .Nm expand
 .Op Fl Ns Ar tabstop  .Op Fl t Ar tablist
 .Oo Xo  .Op Ar
 .Sm off  
 .Fl Ar tab1 , tab2 ,  
 .Ar ... , Ar tabn  
 .Sm on  
 .Oc  
 .Xc  
 .Op Ar file Ar ...  
 .Nm expand  
 .Op Fl t Ar tabstop  
 .Oo Xo  
 .Sm off  
 .Fl t\ \& Ar tab1 , tab2 ,  
 .Ar ... , Ar tabn  
 .Sm on  
 .Oc  
 .Xc  
 .Op Ar file Ar ...  
 .Nm unexpand  .Nm unexpand
 .Op Fl a  .Op Fl a
 .Op Ar file Ar ...  .Op Ar
 .Sh DESCRIPTION  .Sh DESCRIPTION
 .Nm expand  .Nm expand
 processes the named files or the standard input,  processes the named files or the standard input,
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 (before sorting, looking at specific columns, etc.) that  (before sorting, looking at specific columns, etc.) that
 contain tabs.  contain tabs.
 .Pp  .Pp
 If a single  If the argument to
 .Ar tabstop  .Fl t ,
 argument is given, tabs are set  .Ar tablist ,
 .Ar tabstop  consists of a single numerical argument, tabs are set
   .Ar tablist
 spaces apart instead of the default 8.  spaces apart instead of the default 8.
 If multiple tabstops are given, then the tabs are set at those  If multiple
   .Fl t
   options are given, then the tabs are set at those
 specific columns.  specific columns.
 In the synopsis above, both forms of the  
 .Nm  
 command are identical.  
 .Pp  .Pp
 If a list of tabstops is given, it should consist of a list  Otherwise the argument to
 of two or more positive decimal integers, in ascending order.  .Fl t
 In the event of having to process a  may consist of a list
   of two or more positive decimal integers,
   comma separated,
   in ascending order:
   in the event of having to process a
 .Aq tab  .Aq tab
 at a position beyond the last of those specified in a multiple tabstop list,  at a position beyond the last of those specified in a multiple
   .Fl t
   list,
 the  the
 .Aq tab  .Aq tab
 is replaced by a single  is replaced by a single
 .Aq space  .Aq space
 character.  character.
 .Pp  .Pp
   This implementation of
   .Nm
   additionally allows
   .Ar tablist
   to be specified without using the
   .Fl t
   flag, by prefixing
   .Ar tablist
   with a dash
   .Pq - .
   .Pp
 .Nm unexpand  .Nm unexpand
 puts tabs back into the data from the standard input or the named  puts tabs back into the data from the standard input or the named
 files and writes the result on the standard output.  files and writes the result on the standard output.
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 and  and
 .Nm unexpand  .Nm unexpand
 utilities are compliant with the  utilities are compliant with the
 .St -p1003.1  .St -p1003.1-2004
 specification, with the following exceptions:  specification, with the following exceptions:
 .Bl -bullet -offset indent  .Bl -bullet -offset indent
 .It  .It
 .Tn POSIX  .Tn POSIX
 does not support specifying tabstops without use of the  does not support specifying tabstops without use of the
 .Fl t  .Fl t
 flag (first form in  flag.
 .Sx SYNOPSIS  
 above).  
 .It  .It
 .Tn POSIX  .Tn POSIX
 specifies that multiple tabstops may be given separated by  specifies that multiple tabstops may be given separated by
Legend:
Removed from v.1.9  
changed lines
  Added in v.1.10