proc putsd { text } {
    global DEBUG
    if { !$DEBUG } { return }
    puts $text\n
    set DEBUGFOUT [open c:/temp/kk.err a]
    puts $DEBUGFOUT $text\n
    close $DEBUGFOUT
}

proc ErrorAndQuit { text } {
    ErrorNoQuit $text
    exit 2
}

proc bgerror { text } {
    ErrorAndQuit $text
}

proc ErrorNoQuit { text } {
    global NumLine DEBUG ProgramErrorFile

    if { $DEBUG } {
	set DEBUGFOUT [open /temp/kk.err a]
    }

    if { !$NumLine } {
	if { [info command wm] != "" } {
	    wm withdraw .
	    tk_messageBox -icon error -title "error in .bat file" -type ok \
		    -message "$text"
	} elseif { $DEBUG } {
	    puts $text\n
	    puts $DEBUGFOUT $text\n
	} else {
	    puts $text\n
	}
	if { $ProgramErrorFile != "" } {
	    catch {
		set fout [open $ProgramErrorFile a]
		puts $fout "error in .bat file: "
		puts $fout $text\n
		close $fout
		putsd "filled $ProgramErrorFile"
	    }
	}
    } else {
	if { [info command wm] != "" } {
	    wm withdraw .
	    tk_messageBox -icon error -title "error in .bat file" -type ok \
		    -message "line: $NumLine.- $text"
	} elseif { $DEBUG } {
	    puts "line: $NumLine.- $text\n"
	    puts $DEBUGFOUT "line: $NumLine.- $text\n"
	} else {
	    puts "line: $NumLine.- $text\n"
	}
	if { $ProgramErrorFile != "" } {
	    catch {
		set fout [open $ProgramErrorFile a]
		puts $fout "error in .bat file: "
		puts $fout "line: $NumLine.- $text\n"
		close $fout
		puts $DEBUGFOUT "filled $ProgramErrorFile"
	    }
	}
    }
    if { $DEBUG } {
	close $DEBUGFOUT
    }
}

proc WarnWin {text} {
    global NumLine
    tk_messageBox -icon error -title "error in .bat file" -type ok \
	    -message "line: $NumLine.- $text"
}

proc EraseElement { inum } {
    global line linelen

   for { set i [expr $inum+1] } { $i < $linelen } { incr i } {
	set iprev [expr $i-1]
	set line($iprev) $line($i)
    }
    incr linelen -1
}

proc CommandExecuter { inum } {
    global errorCode arv0 env
    global line linelen ProgramErrorFile

    switch -- [string tolower $line($inum)] {
	rem {
	    if { [info exists line([expr $inum+1])] && [info exists line([expr $inum+2])] && \
		    $line([expr $inum+1]) == "ErrorFile:" } {
		set ProgramErrorFile [file join $line([expr $inum+2])]
		putsd ProgramErrorFile=$ProgramErrorFile
	    }
	    # nothing
	}
	cd - chdir {
	    set dir ""
	    incr inum
	    if { $inum < $linelen } {
		set dir $line($inum)
	    }
	    if { [catch {
		regsub -all {\\} $dir {/} dir
		set dir [lindex $dir 0]
		cd $dir
	    } ] } {
		ErrorAndQuit "error: trying to change directory to '$dir'"
	    }
	}
	del - delete - erase {
	    incr inum
	    for { set i $inum } { $i < $linelen } { incr i } {
		set file $line($i)
		if { [string match /* $file] } { continue }
		catch {
		    regsub -all {\\} $file {/} file
		    set file [lindex $file 0]
		    file delete $file
		}
	    }
	}
	copy {
	    if { [expr $linelen-$inum] != 3 } {
		ErrorAndQuit "error, only accepted simple form: $line($inum) from to"
	    }
	    incr inum
	    set file1 ""
	    set file2 ""
	    for { set i $inum } { $i < $linelen } { incr i } {
		set file $line($i)
		if { [regexp {[+]} $file] } {
		    ErrorAndQuit "error, only accepted simple form: $line($inum) from to"
		}
		if { [string match /* $file] } { continue }
		regsub -all {\\} $file {/} file
		set file [lindex $file 0]
		if { $file1 == "" } { 
		    set file1 $file
		} else {
		    set file2 $file
		    break
		}
	    }
	    catch {
		file copy -force $file1 $file2
	    }
	}
	ren - rename - move {
	    if { [expr $linelen-$inum] != 3 } {
		ErrorAndQuit "error: $line($inum) needs two arguments"
	    }
	    incr inum
	    set file1 ""
	    set file2 ""
	    for { set i $inum } { $i < $linelen } { incr i } {
		set file $line($i)
		if { [string match /* $file] } { continue }
		regsub -all {\\} $file {/} file
		set file [lindex $file 0]
		if { $file1 == "" } { 
		    set file1 $file
		} else {
		    set file2 $file
		    break
		}
	    }
	    catch {
		file rename $file1 $file2
	    }
	}
	md - mkdir {
	    incr inum
	    for { set i $inum } { $i < $linelen } { incr i } {
		set file $line($i)
		if { [string match /* $file] } { continue }
		regsub -all {\\} $file {/} file
		set file [lindex $file 0]
		catch {
		    file mkdir $line($i)
		}
	    }
	}
	set {
	    incr inum
	    set execline ""
	    for { set i $inum } { $i < $linelen } { incr i } {
		append execline $line($i)
		if { $inum < [expr $linelen-1] } { 
		    append execline " "
		}
	    }
	    if { [regexp {^[ ]*$} $execline] } { break }
	    set var ""
	    set value ""
	    if { [regexp {([^=]*)=(.*)} $execline {} var value] } {
		if { $var != "" } {
                    set var [string trim $var " \""]
                    set value [string trim $value " \""]
		    set env($var) $value
		}
	    }

	}
	echo - @echo {
	    incr inum
	    if { [expr $linelen-$inum] == 1 && ( [string tolower $line($inum)] == "on" || \
		    [string tolower $line($inum)] == "off") } {
	    } else {
		set type ""
		for { set i [expr $linelen-1] } { $i >= $inum } { incr i -1} {
		    set item $line($i)
		    if { ![regexp {^[\"]} $item] } {
			if { [string match *>* $item] } {
			    regexp {^([^>]*)(>>?)(.*)} $item {} before sign after
			    set ifile [expr $i+1]
			    if { $before == "" } {
				EraseElement $i
				incr ifile -1
			    } else {
				set line($i) $before
			    }
			    if { $after == "" } {
				if { $ifile == $linelen } {
				    ErrorAndQuit [concat "error: in echo command after "\
					    "> or >> need filename"]
				}
				set after $line($ifile)
				EraseElement $ifile
			    }
			    if { $type == "" } {
				if { $sign == ">" } {
				    set type w
				} else {
				    set type a
				}
				set file $after
			    }
			}
		    }
		}
		if { $type == "" } {
		    for { set i $inum } { $i < $linelen } { incr i } {
			puts -nonewline $line($i)
			if { $inum < [expr $linelen-1] } { 
			    puts -nonewline " " 
			} else { puts "" }
		    }
		} else {
		    regsub -all {\\} $file {/} file
		    set file [lindex $file 0]
		    if { [catch { set fout [open $file $type] } err] } {
			ErrorAndQuit "error ($err): trying to echo to file '$file'"
		    }
		    for { set i $inum } { $i < $linelen } { incr i } {
			puts -nonewline $fout $line($i)
			if { $inum < [expr $linelen-1] } { 
			    puts -nonewline $fout " " 
			} else { puts $fout "" }
		    }
		    close $fout
		}
	    }
	}
	"if" {
	    incr inum
	    set negate 0
	    if { [string tolower $line($inum)] == "not" } {
		set negate 1
		incr inum
	    }
	    set val 0
	    set ifpos [string tolower $line($inum)]
	    if { [regexp {^\"?([^ =]+)[ ]*==[ ]*([^ ]+)[ ]+(.*)\"?$} ifpos {} caden1 caden2] } {
		set val [expr [string compare $caden1 $caden2] == 0]
	    } elseif { $line([expr $inum+1]) == "=="  } {
		set caden1 $ifpos
		if { [expr $inum+1] >= $linelen } {
		    ErrorAndQuit "error: expression 'if c1 == c2' not correct"
		}
		set caden2 $line([expr $inum+2])
		set val [expr [string compare $caden1 $caden2] == 0]
	    } elseif { $ifpos == "errorlevel" } {
		incr inum
		set number $line($inum)
		if { [catch { [expr int($number)] }] } {
		    ErrorAndQuit "error: after 'if errorlevel' one number is needed"
		}
		set errorlevel 0
		if { [lindex $errorCode 0] == "CHILDSTATUS" } { 
		    set errorlevel [lindex $errorCode 2]
		}
		set val [expr $errorlevel>=$num]
		incr inum
	    } elseif { $ifpos == "exist" } {
		incr inum
		set file $line($inum)
		regsub -all {\\} $file {/} file
		set file [lindex $file 0]
		set val [file exists $file]
		incr inum
	    } else {
		ErrorAndQuit "Unknown condition for 'if' command: '$ifpos'"
	    }
	    if { $negate } { set val [expr !$val] }
	    if { $val } {
		CommandExecuter $inum
	    }
	}
	call {

	    set errorCode NONE
	    set execline ""
	    lappend execline $arv0
	    append execline " "
	    for { set i $inum } { $i < $linelen } { incr i } {
		append execline $line($i)
		if { $inum < [expr $linelen-1] } { 
		    append execline " "
		}
	    }
	    regsub -all {\\} $execline {\\\\} execline
	    global RunningProcess
	    set RunningProcess running
	    if { [catch { set pid [eval exec $execline &] } errorchar] } {
  		if { [lindex $errorCode 0] != "CHILDSTATUS" } {
  		    ErrorAndQuit "error: $errorchar "
  		}
	    }
	    while 1 {
		if { $RunningProcess == "" } {
		    kill $pid
		    vwait forever
		}
		if { ![isalive $pid] } { break }
		after 200
		update
	    }
	    unset RunningProcess
	}
	goto {
	    incr inum
	    return $line($inum)
	}
	default {
	    set errorCode NONE
	    set execline ""
	    for { set i $inum } { $i < $linelen } { incr i } {
		append execline $line($i)
		if { $inum < [expr $linelen-1] } { 
		    append execline " "
		}
	    }
	    regsub -all {\\} $execline {\\\\} execline
	    global RunningProcess
	    set RunningProcess running
	    
	    putsd execline=--$execline--
	    
	    if { [catch { set pid [eval exec $execline &] } errorchar] } {
  		if { [lindex $errorCode 0] != "CHILDSTATUS" } {
  		    ErrorAndQuit "error: $errorchar "
  		}
	    }
	    while 1 {
		if { $RunningProcess == "" } {
		    putsd "Before killing..."
		    kill $pid
		    putsd "after killing"
		    vwait forever
		}
		if { ![isalive $pid] } { break }
		after 100
		update
	    }
	    putsd "after finishing"
	    unset RunningProcess
	}
    }
    return ""
}

proc ReadAndExecute { fbat } {
    global NumLine rargc rargv
    global line linelen
    global env

    for { set i 0 } { $i < $rargc } { incr i } {
	set f($i) [lindex $rargv $i]
	catch { set f($i) [file native [file attributes $f($i) -shortname]] } aa
    }
    catch { unset labels }
    while { ![eof $fbat] } {
	gets $fbat aa
	putsd "executing:   $aa"
	incr NumLine
	if { [regexp {^[ ]*$} $aa] } { continue }
	if { [regexp {^[ ]*:[ ]*([^ ]+)} $aa {} label] } {
	    set labels($label) [tell $fbat]
	    continue
	}

	set word ""
	set linelen 0
	catch { unset line }
	set thereisspace 0
	set openpar 0
	for { set i 0 } { $i < [string length $aa] } { incr i } {
	    set l [string index $aa $i]
	    if { $l == "\"" } {
		if { $openpar } {
		    append word "\""
		    set line($linelen) $word
		    incr linelen
		    set word ""
		    set thereisspace 0
		    set openpar 0
		} elseif { $word == "" } {
		    set openpar 1
		    set word "\""
		} else {
		    append word "\""
		}
	    } elseif { !$openpar && ($l == " " || $l == "\t") } {
		if { $word != "" } {
		    if { $thereisspace && [string index $word 0] != "\"" } {
			set word "\"$word"
		    }
		    set last [expr [string length $word]-1]
		    if { $thereisspace && [string index $word $last] != "\"" } {
			append word "\""
		    }
		    set line($linelen) $word
		    incr linelen
		    set word ""
		    set thereisspace 0
		}
	    } else {
		if { $l == "%" } {
		    incr i
		    set l [string index $aa $i]
		    switch -- $l {
			0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 {
			    if { [info exists f($l)] } {
				if { [llength $f($l)] > 1 } { set thereisspace 1 }
				append word $f($l)
			    }
			}
			default {
			    if { [regexp {^([a-zA-Z_0-9]+)%} [string range $aa $i end] {} varname] } {
				if { [info exists env($varname)] } {
				    if { [llength $env($varname)] > 1 } { set thereisspace 1 }
				    append word $env($varname)
				    incr i [string length $varname]
				} else {
				    ErrorAndQuit "Error: variable '$varname' not known"
				}
			    } else {
				incr i -1
			    }
			}
		    }
		} else {
		    append word $l
		}
	    }
	}
	if { $word != "" } {
	    if { $thereisspace && [string index $word 0] != "\"" } {
		set word "\"$word"
	    }
	    set last [expr [string length $word]-1]
	    if { $thereisspace && [string index $word $last] != "\"" } {
		append word "\""
	    }
	    set line($linelen) $word
	    incr linelen
	}
	set retval [CommandExecuter 0]
	if { $retval != "" } {
	    if { [info exists labels($retval)] } {
		fseek $fbat $labels($retval)
	    } else {
		while { ![eof $fbat] } {
		    gets $fbat aa
		    incr NumLine
		    set label ""
		    if { [regexp {^[ ]*:[ ]*([^ ]+)} $aa {} label] } {
			set labels($label) [tell $fbat]
		    }
		    if { $retval == $label } { break }
		}
		if { $retval != $label } {
		    ErrorAndQuit "error: label for goto not found '$retval'"
		}
	    }
	}
    }
}

if { [info command wm] != "" } {
	    wm withdraw .
}

set NumLine 0
set errorCode NONE
set DEBUG 0
set ProgramErrorFile ""

putsd encoding=[encoding system]
putsd argv0=$argv0
set i 1
foreach j $argv {
    putsd "argv $i=$j"
    incr i
}


if { $argc < 4 } {
    ErrorAndQuit [concat "error; usage: $argv0 file.bat basename projectdirectory "\
	    "problemtypedirectory "]
}

proc ExitReal {} {
    putsd "exit real"
    exit
}

proc Exit { args } {
    global RunningProcess

    putsd "exiting..."
    if { [info exists RunningProcess] } {
	set RunningProcess {}
    }
    after 400 ExitReal
    return "goodbye"
}

load tcldde83.dll dde
dde servername [pid]


set rargc 0
set rargv ""
for { set i 0 } { $i < $argc } { incr i } {
    if { ![regexp {^/[a-zA-Z]$} [lindex $argv $i]] } {
	incr rargc
	lappend rargv [lindex $argv $i]
    }
}


set file [lindex $rargv 0]

if { [catch {
    set fbat [open $file r]
}] }  {
    ErrorAndQuit "error: file $file does not exist"
}

#set rargv [lrange $argv 1 end]

ReadAndExecute $fbat
ExitReal