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Diff for /src/usr.bin/m4/m4.1 between version 1.40 and 1.41

version 1.40, 2005/09/06 15:50:19 version 1.41, 2005/09/07 13:22:24
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 .Nd macro language processor  .Nd macro language processor
 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm m4  .Nm m4
 .Op Fl d Ar flags  .Op Fl gs
 .Op Fl t Ar name  
 .Op Fl o Ar filename  
 .Op Fl g  
 .Op Fl s  
 .Oo  .Oo
 .Fl D Ns Ar name Ns Op Ar =value  .Sm off
   .Fl D Ar name Op No = Ar value
   .Sm on
 .Oc  .Oc
 .Op Fl U Ns Ar name  .Op Fl d Ar flags
 .Op Fl I Ar dirname  .Op Fl I Ar dirname
   .Op Fl o Ar filename
   .Bk -words
   .Op Fl t Ar macro
   .Op Fl U Ns Ar name
   .Ek
 .Sh DESCRIPTION  .Sh DESCRIPTION
 The  The
 .Nm m4  .Nm m4
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 The options are as follows:  The options are as follows:
 .Bl -tag -width Ds  .Bl -tag -width Ds
 .It Fl D Ns Ar name Ns Oo  .It Fl D Ns Ar name Ns Oo
 .Ar =value  .Pf = Ns Ar value
 .Oc  .Oc
 Define the symbol  Define the symbol
 .Ar name  .Ar name
 to have some value (or  to have some value (or
 .Dv NULL ) .  .Dv NULL ) .
 .It Fl "U" Ns Ar "name"  
 Undefine the symbol  
 .Ar name .  
 .It Fl I Ar "dirname"  
 Add directory  
 .Ar dirname  
 to the include path.  
 .It Fl d Ar "flags"  .It Fl d Ar "flags"
 Set trace flags.  Set trace flags.
 .Ar flags  .Ar flags
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 .Pp  .Pp
 By default, trace is set to  By default, trace is set to
 .Qq eq .  .Qq eq .
 .It Fl o Ar filename  
 Send trace output to  
 .Ar filename .  
 .It Fl t Ar macro  
 Turn tracing on for  
 .Ar macro .  
 .It Fl g  .It Fl g
 Activate GNU-m4 compatibility mode.  Activate GNU-m4 compatibility mode.
 In this mode, translit handles simple character  In this mode, translit handles simple character
 ranges (e.g., a-z), regular expressions mimic emacs behavior,  ranges (e.g., a-z), regular expressions mimic emacs behavior,
 multiple m4wrap calls are handled as a stack,  multiple m4wrap calls are handled as a stack,
 and the number of diversions is unlimited.  and the number of diversions is unlimited.
   .It Fl I Ar "dirname"
   Add directory
   .Ar dirname
   to the include path.
   .It Fl o Ar filename
   Send trace output to
   .Ar filename .
 .It Fl s  .It Fl s
 Output line synchronization directives, suitable for  Output line synchronization directives, suitable for
 .Xr cpp 1 .  .Xr cpp 1 .
   .It Fl t Ar macro
   Turn tracing on for
   .Ar macro .
   .It Fl "U" Ns Ar "name"
   Undefine the symbol
   .Ar name .
 .El  .El
 .Sh SYNTAX  .Sh SYNTAX
 .Nm m4  .Nm m4
Legend:
Removed from v.1.40  
changed lines
  Added in v.1.41