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#!/usr/local/bin/wish4.0 | 
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# RCSid: $Id: trad.wsh,v 2.15 2003/02/22 02:07:30 greg Exp $ | 
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# the next line restarts using wish in case of shell execution \ | 
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exec wish "$0" "$@" | 
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# | 
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# TCL/TK-based Rad Input File Editor | 
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# | 
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 | 
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# Insert our autoload directory (may require local system modification) | 
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 | 
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set radlib /usr/local/lib/ray/tcl | 
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set helplib $radlib | 
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 | 
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set auto_path [linsert $auto_path 0 $radlib] | 
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 | 
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# Assign global globbing variables | 
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 | 
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set myglob(rif) *.rif | 
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set myglob(materials) *.mat | 
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set myglob(illum) *.rad | 
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set myglob(scene) *.rad | 
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set myglob(objects) * | 
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 | 
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# Create required procedures | 
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 | 
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proc modified {} {      # check for radvar modification | 
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        global radvar oldradvar | 
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        if {! [info exists oldradvar]} {return 0} | 
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        foreach n [array names oldradvar] { | 
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                if {! [info exists radvar($n)] || | 
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                                "$radvar($n)" != "$oldradvar($n)"} { | 
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                        return 1 | 
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                } | 
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        } | 
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        return 0 | 
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} | 
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 | 
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proc chksave {} {       # check if RIF is saved and accost user if not | 
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        global readonly rifname oldradvar curmess | 
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        if [modified] { | 
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                if $readonly { | 
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                        set warnmess "You have modified variables, but the\ | 
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file \"[file tail $rifname]\" was opened read-only. | 
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Do you wish to save this information somehow?" | 
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set yesmess {Go to File Screen} | 
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                } else { | 
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                        set warnmess "The file \"[file tail $rifname]\" has\ | 
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been modified since it was last saved. | 
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Do you wish to save it now?" | 
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                        set yesmess {Save File} | 
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                } | 
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                switch [tk_dialog .dlg {File Modified} $warnmess \ | 
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                                warning 0 $yesmess {Discard Changes} \ | 
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                                {Cancel Operation}] { | 
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                        1 { return 1 } | 
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                        2 { return 0 } | 
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                } | 
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                if $readonly { | 
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                        set curmess {Rename file or uncheck read-only to save.} | 
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                        .file invoke | 
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                        return 0 | 
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                } elseif {[save_vars $rifname]} { | 
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                        gotfile 1 | 
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                        return 1 | 
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                } | 
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                return 0 | 
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        } | 
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        return 1 | 
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} | 
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 | 
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# Set global variable default values | 
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 | 
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set readonly 0 | 
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set alldone 0 | 
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set rifname [pwd]/ | 
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 | 
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# Propogate essential variables | 
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 | 
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proc setrname {name elem op} { | 
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        global rifname | 
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        wm title . $rifname | 
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        wm iconname . [file tail $rifname] | 
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} | 
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trace variable rifname w setrname | 
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 | 
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# Make main window frames | 
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 | 
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set smallscrn [expr [winfo screenwidth .] < 830] | 
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 | 
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message .mess -relief ridge -font fixed -textvariable curmess -anchor nw | 
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if $smallscrn { | 
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        frame .upper -width 640 -height 410 | 
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        frame .upper.right -width 120 -height 410 | 
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        .mess configure -width 640 | 
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} else { | 
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        frame .upper -width 830 -height 410 | 
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        frame .upper.right -width 130 -height 410 | 
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        .mess configure -width 830 | 
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} | 
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pack .upper -side top | 
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place .upper.right -relx .98 -rely 0 -anchor ne | 
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pack .mess -side top -expand yes -fill both | 
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helplink .mess trad trad messages | 
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. configure -cursor top_left_arrow | 
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 | 
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# Make mode buttons | 
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 | 
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proc changescreen {} {          # switch screen according to curmode | 
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        global curscreen curmode curmess smallscrn | 
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        if [info exists curscreen] { | 
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                if {"$curmode" == "$curscreen"} {return} | 
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                destroy .upper.left | 
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                do_$curscreen done | 
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                set curmess {} | 
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        } | 
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        set curscreen $curmode | 
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        do_$curscreen .upper.left | 
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        if $smallscrn { | 
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                .upper.left configure -width 520 -height 410 | 
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        } else { | 
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                .upper.left configure -width 700 -height 410 | 
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        } | 
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        place .upper.left -x 0 -y 0 | 
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} | 
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 | 
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label .upper.right.title -text "- TRAD -" | 
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pack .upper.right.title -side top -pady 10 | 
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 | 
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proc setbutt v { | 
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        radiobutton .$v -text [string toupper $v] \ | 
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                        -variable curmode -value $v \ | 
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                        -width 10 -relief groove -anchor w \ | 
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                        -command changescreen | 
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        pack .$v -in .upper.right -side top -pady 5 | 
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        helplink .$v trad $v intro | 
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} | 
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 | 
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setbutt file | 
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setbutt scene | 
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setbutt zone | 
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setbutt views | 
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setbutt options | 
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setbutt action | 
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setbutt results | 
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rename setbutt {} | 
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button .upper.right.help -text HELP -width 9 \ | 
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                -command "gethelp trad trad intro" | 
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pack .upper.right.help -side top -pady 5 -anchor se | 
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helplink .upper.right.help trad trad help | 
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button .upper.right.quit -text QUIT \ | 
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                -command {if [chksave] {destroy .}} -width 9 | 
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pack .upper.right.quit -side top -pady 5 -anchor se | 
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helplink .upper.right.quit trad trad quit | 
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 | 
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if $smallscrn { | 
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        wm minsize . 640 460 | 
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        wm maxsize . 640 512 | 
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} else { | 
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        wm minsize . 830 460 | 
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        wm maxsize . 830 512 | 
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} | 
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wm iconbitmap . @$radlib/trad.icon | 
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 | 
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proc gotfile o {                # set file possession state | 
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        global oldradvar radvar | 
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        catch {unset oldradvar} | 
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        if $o { | 
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                set mode normal | 
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                foreach n [array names radvar] { | 
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                        set oldradvar($n) $radvar($n) | 
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                } | 
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        } else { | 
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                set mode disabled | 
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        } | 
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        foreach b {scene zone views options action results} { | 
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                .$b configure -state $mode | 
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        } | 
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} | 
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 | 
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# Decide where to go and start | 
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 | 
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gotfile 0 | 
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if {[llength $argv] == 0} { | 
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        set curmess "Choose a Radiance project file." | 
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        .file invoke | 
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} elseif {[llength $argv] == 1} { | 
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        cd [file dirname $argv] | 
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        set curfile [file tail $argv] | 
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        if {! [file isfile $curfile]} { | 
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                if [newnew $curfile] { | 
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                        .scene invoke | 
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                } else { | 
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                        .file invoke | 
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                } | 
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        } elseif {[newload $curfile]} { | 
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                if $alldone { | 
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                        set curmess "All renderings are finished." | 
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                        .results invoke | 
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                } else { | 
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                        .action invoke | 
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                } | 
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        } else { | 
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                .file invoke | 
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        } | 
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} else { | 
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        puts stderr {Usage:  trad [rifname]} | 
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        exit 1 | 
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} |