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# SCCSid "$SunId$ LBL"
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#
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# General utility routines
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#
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proc beep {} { # ring the bell
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puts -nonewline stderr "\a"
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}
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proc view_txt fn { # view a text file
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global env
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if [info exists env(EDITOR)] {
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eval exec xterm -e $env(EDITOR) $fn
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} else {
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foreach f $fn {
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exec xedit $f
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}
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}
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}
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proc cardval {var cvl} { # set variable to one of a set of values
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upvar $var v
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set tv [string toupper $v]
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foreach cv $cvl {
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if {[string first $tv [string toupper $cv]] == 0} {
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set v $cv
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return $cv
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}
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}
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return {} ; # this would seem to be an error
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}
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