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| Current File : //usr/lib64/tcl8.5/tclx8.4/forfile.tcl |
#
# forfile.tcl --
#
# Proc to execute code on every line of a file.
#------------------------------------------------------------------------------
# Copyright 1992-1999 Karl Lehenbauer and Mark Diekhans.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted, provided
# that the above copyright notice appear in all copies. Karl Lehenbauer and
# Mark Diekhans make no representations about the suitability of this
# software for any purpose. It is provided "as is" without express or
# implied warranty.
#------------------------------------------------------------------------------
# $Id: forfile.tcl,v 1.1 2001/10/24 23:31:48 hobbs Exp $
#------------------------------------------------------------------------------
#
#@package: TclX-forfile for_file
proc for_file {var filename cmd} {
upvar 1 $var line
set fp [open $filename r]
try_eval {
set code 0
set result {}
while {[gets $fp line] >= 0} {
set code [catch {uplevel 1 $cmd} result]
if {$code != 0 && $code != 4} break
}
} {} {
close $fp
}
if {$code == 0 || $code == 3 || $code == 4} {
return $result
}
if {$code == 1} {
global errorCode errorInfo
return -code $code -errorcode $errorCode -errorinfo $errorInfo $result
}
return -code $code $result
}