###########################################
#                Tcl/Tk Project Manager
#                    version 0.0.1
#                   TCL highlight file
# Copyright (c) Sergey Kalinin 2001, http://nuk-svk.ru
# Author: Sergey Kalinin (aka BanZaj) banzaj28@gmail.com
###########################################

proc HighLightTCL {text line lineNumber node} {
    global fontNormal fontBold editorFontBold tree imgDir noteBook
    global editor color
    
    set startIndex 0
    # bind text tags for highlightning #
    $text tag configure bold -font $editor(fontBold)
    $text tag configure procName -font $editor(fontBold) -foreground $color(procName)
    $text tag configure keyWord -foreground $color(keyWord)
    $text tag configure comments -foreground $color(comments)
    $text tag configure variable -foreground $color(var)
    $text tag configure string -foreground $color(string)
    $text tag configure braceHighLight -font $editor(fontBold)\
    -foreground  $color(braceBG) -background $color(braceFG)
    $text tag configure brace -foreground $color(brace)
    $text tag configure bracequad -foreground $color(bracequad)
    $text tag configure percent -foreground $color(percent)
    $text tag configure bindKey -foreground $color(bindKey)
    
    #    incr lineNumber
    set keyWord [info commands]
    # for OOP extention
    foreach n {class method attribute constructor destructor invariant attribute binding new delete \
    mcset mc mclocale mcpreferences mcload mcunknown configure match else elseif} {
        lappend keyWord $n
    }
    set dataType {true false}
    set a ""
    set startPos 0
    set endPos 0
    set length 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp "(^|\t| )\[a-zA-Z\\_:\]+" $workLine word]} {
            set length [string length $word]
            set startPos [string first [string trim $word] $line]
            set endPos [expr $startPos + $length]
            set workLine [string range $workLine $length end]
            if {[lsearch $keyWord [string trim $word]] != -1} {
                $text tag add keyWord $lineNumber.$startPos $lineNumber.$endPos
            }
            if {[lsearch $dataType [string trim $word]] != -1} {
                $text tag add bold $lineNumber.$startPos $lineNumber.$endPos
            }            
            if {[string trim $word]=="proc"} {
                $text tag add procName $lineNumber.[expr $startPos + $length] $lineNumber.[string wordend $line [expr $startPos + $length +2]]
            }
            set startPos [expr $endPos + 1]
        } else {
            break
        }
    }
    set workLine $line
    while {$workLine != ""} {
        if {[regexp {(\{|\[)[a-zA-Z\\_:]+} $workLine word v]} {
            set word [string trim $word $v]
            set length [string length $word]
            set startPos [string first [string trim $word] $line]
            set endPos [expr $startPos + $length]
            set workLine [string range $workLine $length end]
            if {[lsearch $keyWord [string trim $word]] != -1} {
                $text tag add keyWord $lineNumber.$startPos $lineNumber.$endPos
            }
            if {[string trim $word]=="proc"} {
                $text tag add procName $lineNumber.[expr $startPos + $length] $lineNumber.[string wordend $line [expr $startPos + $length +2]]
            }
            set startPos [expr $endPos + 1]
        } else {
            break
        }
    }
    
    # key binding highlight
    set startPos 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp "<.*?>" $workLine a b]} {
            set start [string first $a $workLine]
            set end $start
            incr end [string length $a]
            set workLine [string range $workLine $end end]
            incr start $startPos
            incr end $startPos
            $text tag add bindKey $lineNumber.$start $lineNumber.$end
            set startPos $end
        } else {
            break
        }        
    }
    # variable highlight #
    set startPos 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp "\\$\[a-zA-Z\\_:\]+" $workLine a]} {
            set start [string first $a $workLine]
            set end $start
            incr end [string length $a]
            set workLine [string range $workLine $end end]
            incr start $startPos
            incr end $startPos
            if {$a != ""} {
                $text tag add variable $lineNumber.$start $lineNumber.$end
            }
            set startPos $end
        } else {
            break
        }        
    }
    # string " " highlight
    set startPos 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp "\".*?\"" $workLine a b]} {
            set start [string first $a $workLine]
            set end $start
            incr end [string length $a]
            set workLine [string range $workLine $end end]
            incr start $startPos
            incr end $startPos
            $text tag add string $lineNumber.$start $lineNumber.$end
            set startPos $end
        } else {
            break
        }        
    }
    # persent % highlight
    set startPos 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp "\%" $workLine a b]} {
            set start [string first $a $workLine]
            set end $start
            incr end [string length $a]
            set workLine [string range $workLine $end end]
            incr start $startPos
            incr end $startPos
            $text tag add percent $lineNumber.$start $lineNumber.$end
            set startPos $end
        } else {
            break
        }        
    }
    set startPos 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp "\{|\}" $workLine a b]} {
            set start [string first $a $workLine]
            set end $start
            incr end [string length $a]
            set workLine [string range $workLine $end end]
            incr start $startPos
            incr end $startPos
            $text tag add brace $lineNumber.$start $lineNumber.$end
            set startPos $end
        } else {
            break
        }        
    }
    
    # DEDERER
    # hightlight [, {, }, ]
    set startPos 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp {\(|\[|\]|\)} $workLine a b]} {
            set start [string first $a $workLine]
            set end $start
            incr end [string length $a]
            set workLine [string range $workLine $end end]
            incr start $startPos
            incr end $startPos
            $text tag add bracequad $lineNumber.$start $lineNumber.$end
            set startPos $end
        } else {
            break
        }
    }
    # parameter for command hightlight
    set startPos 0
    set workLine $line
    while {$workLine != ""} {
        if {[regexp -- {\s-\w+(?=\s)} $workLine a b]} {
            set start [expr [string first $a $workLine] + 1]
            set end $start
            incr end [string length $a]
            set workLine [string range $workLine $end end]
            incr start $startPos
            incr end $startPos
            $text tag add bindKey $lineNumber.$start $lineNumber.$end
            set startPos $end
        } else {
            break
        }
    }
    # add comment #
    set workLine [$text get $lineNumber.0 $lineNumber.end]
    if {[regexp -indices "(^|\t|;| )#" $workLine word]} {
        set p [lindex $word 1]
        $text tag add comments $lineNumber.$p $lineNumber.end
        $text tag raise comments
    } else {
        $text tag remove comments $lineNumber.0 $lineNumber.end
    }
}



