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#!/usr/locanl/bin/tclsh
# FILE: "/diska/home/joze/src/tclreadline/tclreadlineSetup.tcl.in"
# LAST MODIFICATION: "Mon Aug 30 01:54:12 1999 (joze)"
# FILE: "/home/joze/src/tclreadline/tclreadlineSetup.tcl.in"
# LAST MODIFICATION: "Tue Aug 31 03:32:02 1999 (joze)"
# (C) 1998, 1999 by Johannes Zellner, <johannes@zellner.org>
# $Id$
# ---
#
# tclreadline -- gnu readline for tcl
# Copyright (C) 1999  Johannes Zellner
#
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                        "ambiguous command name \"$name\": [lsort $cmds]"
            }
        }
    }
    return -code error "invalid command name \"$name\""
}

namespace eval tclreadline:: {
    namespace export Setup Glob Loop InitCmds InitTclCmds InitTkCmds Print ls
}
namespace eval tclreadline {

namespace export Setup Glob Loop InitCmds InitTclCmds InitTkCmds Print ls


proc tclreadline::FirstNonOption {line} {
proc FirstNonOption {line} {
    set expr_pos 1
    foreach word [lrange ${line} 1 end] {; # 0 is the command itself
        if {"-" != [string index ${word} 0]} {
            break
        } else {
            incr expr_pos
        }
    }
    return ${expr_pos}
}

proc tclreadline::FmtFindInList {text lst} {
    return [string trim [tclreadline::Format \
    [tclreadline::FindInList $text $lst] $text]]
}

proc tclreadline::RemoveUsedOptions {line opts {terminate {}}} {
proc RemoveUsedOptions {line opts {terminate {}}} {
    if {[llength ${terminate}]} {
        if {[regexp -- ${terminate} ${line}]} {
            return ""
        }
    }
    set new ""
    foreach word ${opts} {
        if {![regexp -- ${word} ${line}]} {
            lappend new ${word}
        }
    }
    return [string trim ${new}]
}

proc Alert {} {
    puts -nonewline \a
    flush stdout
}
proc tclreadline::FmtFindInListSpecial {text lst} {
    if {![llength ${text}]} {
        return [string trim "{} ${lst}"]

# AttemptFromList will return an empty string, if
# the text typed so far does not match any of the
# elements in list. This might be used to allow
# subsequent filename completion by the builtin
# completer.
#
proc AttemptFromList {text lst} {
    return [string trim [Format [FindInList $text $lst] $text]]
}

# CompleteFromList will never return an empty string.
#
proc CompleteFromList {text lst} {
    set result [AttemptFromList ${text} ${lst}]
    if {![llength ${result}]} {
        Alert
        return [string trim "${text} ${lst}"]
    } else {
        return ${result}
    }
}

# ???????
proc MenuFromList {text lst} {
    if {![llength ${text}]} {
        return [string trim [FmtFindInList ${text} ${lst}]]
        return [string trim "{} ${lst}"]
    } else {
        return [AttemptFromList ${text} ${lst}]
    }
}

# never return an empty string
#
proc Menu {lst} {
    return [string trim "{} ${lst}"]
}

proc tclreadline::FindInList {text lst} {
proc FindInList {text lst} {
    set result ""
    foreach word $lst {
        if {[string match ${text}* ${word}]} {
            lappend result ${word}
        }
    }
    return [string trim $result]
}


# get the longest common completion
# e.g. str == {tcl_version tclreadline_version tclreadline_library}
# --> [tclreadline::GetCommon ${str}] == "tcl"
# --> [GetCommon ${str}] == "tcl"
#
proc tclreadline::GetCommon {str} {
proc GetCommon {str} {
    # puts stderr str=$str
    set match0 [lindex ${str} 0]
    set len0 [string length $match0]
    set no_matches [llength ${str}]
    set part ""
    for {set i 0} {$i < $len0} {incr i} {
        set char [string index $match0 $i]
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            append part $char
        }
    }
    # puts stderr part=$part
    return ${part}
}

proc tclreadline::SubCmd {start line} {
proc SubCmd {start line} {
    set depth 0
    for {set i $start} {$i > 0} {incr i -1} {
        set c [string index $line $i]
        if {{;} == $c} {
            incr i; # discard command break character
            return [list [expr $start - $i] [string range $line $i end]]
        } elseif {{]} == $c} {
            incr depth
        } elseif {{[} == $c} {
            incr depth -1
            if {$depth < 0} {
                incr i; # discard command break character
                return [list [expr $start - $i] [string range $line $i end]]
            }
        }
    }
    return ""
}

proc tclreadline::IsWhite {char} {
proc IsWhite {char} {
    if {" " == $char || "\n" == $char || "\t" == $char} {
        return 1
    } else {
        return 0
    }
}

proc tclreadline::PreviousWord {start line} {
proc PreviousWord {start line} {
    incr start -1
    set found 0
    for {set i $start} {$i > 0} {incr i -1} {
        set c [string index $line $i]
        if {${found} && [IsWhite $c]} {
            break
        } elseif {!${found} && ![IsWhite $c]} {
            set found 1
        }
    }
    return [string trim [string range ${line} $i $start]]
}

proc tclreadline::Quote {value left} {
    set right [tclreadline::Right ${left}]
proc Quote {value left} {
    set right [Right ${left}]
    if {1 < [llength $value] && "" == $right} {
        return [list \"${value}\"]
    } else {
        return [list ${left}${value}${right}]
    }
}

proc tclreadline::InChannelId {text} {
proc InChannelId {text} {
    return [ChannelId ${text} <inChannel> {stdin}]
}

proc tclreadline::OutChannelId {text} {
proc OutChannelId {text} {
    return [ChannelId ${text} <outChannel> {stdout stderr}]
}

proc tclreadline::ChannelId {
    text {default <channelId>} {chs {stdin stdout stderr}}} {
proc ChannelId {text {default <channelId>} {chs {stdin stdout stderr}}} {
    if {[llength ${text}]} {
        set channel [FmtFindInList $text ${chs}]
        set channel [AttemptFromList $text ${chs}]
        if {[llength [lindex ${channel} 0]]} {
            return ${channel}
        } else {
            return ""
        }
    }
    return ${default}
}

proc tclreadline::QuoteQuotes {line} {
proc QuoteQuotes {line} {
    regsub -all -- \" $line {\"} line
    regsub -all -- \{ $line {\{} line
    regsub -all -- \{ $line {\{} line; # \}\} (keep the editor happy)
    return $line
}

# % p<TAB>
# % bla put<TAB> $b
# % put<TAB> $b
# part  == put
# start == 0
# end   == 3
# line  == "put $b"
# [PartPosition] should return 0
#
proc tclreadline::PartPosition {part start end line} {
    # puts stderr "(tclreadline::PartPosition) line\[start\]=[string index $line $start]"
    # puts stderr "(tclreadline::PartPosition) part=|$part|"
proc PartPosition {part start end line} {
    # puts stderr "(PartPosition) line\[start\]=[string index $line $start]"
    # puts stderr "(PartPosition) part=|$part|"
    incr start -1
    if {"\"" == [string index $line $start]} {
        incr start -1
    }
    # puts stderr "(tclreadline::PartPosition) line=|$line|" 
    # puts stderr "(tclreadline::PartPosition) start=$start"
    # puts stderr "(PartPosition) line=|$line|" 
    # puts stderr "(PartPosition) start=$start"
    set line [string range $line 0 $start]
    set line [QuoteQuotes $line]
    # puts stderr "(tclreadline::PartPosition) line=|$line|" 
    # puts stderr "(PartPosition) line=|$line|" 
    set result [llength $line]
    # puts stderr $result
    return $result
}

proc tclreadline::Right {left} {
proc Right {left} {
    if {"\"" == $left} {
        return ""
    } elseif {"\{" == $left} {
        return "\}"
    } elseif {"\\\{" == $left} {
        return "\\\}"
    }
    return ""
}

proc tclreadline::GetPrefix {text} {
proc GetPrefix {text} {
    set null [string index $text 0]
    # puts null=|$null|
    if {"\"" == $null} {
        # puts stderr \neins\n
        set pre "\\\""
    } elseif {"\{" == $null} {
        # puts stderr \nzwei\n
        set pre "\\\{"
    } else {
        # puts stderr \ndrei\n
        set pre ""
    }
    return ${pre}
}

proc tclreadline::Format {matches {part {}}} {
proc Format {matches {part {}}} {
    # puts matches=|$matches|
    # puts stderr \npart=|$part|\n
    set pre [GetPrefix ${part}]
    if {1 == [llength $matches]} { ; # unique match
        # puts stderr \nunique=$matches\n
        # puts stderr "\n|${pre}${matches}[Right ${pre}]|\n"
        return ${pre}${matches}[Right ${pre}]
        return [string trim ${pre}${matches}[Right ${pre}]]
    } elseif {"" != ${matches}} {
        # puts stderr \nmore=$matches\n
        set common [tclreadline::GetCommon ${matches}]
        set common [GetCommon ${matches}]
        # puts stderr common=|$common|
        if {"" == $common} {
            return [string trim "[list $part] ${matches}"]
        } else {
            return [string trim "${pre}${common} ${matches}"]
        }
    } else {
        return ""; # nothing to complete
    }
}

proc tclreadline::ListCompletion {text {level -1}} {
proc ListCompletion {text {level -1}} {
    # TODO
    return ""
    # return [VarCompletion ${text} ${level}]
}

proc tclreadline::VarCompletion {text {level -1}} {
proc VarCompletion {text {level -1}} {
    if {-1 == ${level}} {
        set level [info level]
    } else {
        incr level
    }
    set pre [GetPrefix ${text}]

    if {"" == ${pre}} {
        set var ${text}
    } else {
        set var [string range ${text} 1 end]
    }

    # arrays
    #
    if {[regexp {([^(]*)\((.*)} ${var} all array name]} {
        set names [uplevel ${level} array names ${array} ${name}*]
        if {1 == [llength $names]} { ; # unique match
            return "${array}(${names})"
        } elseif {"" != ${names}} {
            return "${array}([tclreadline::GetCommon ${names}] ${names}"
            return "${array}([GetCommon ${names}] ${names}"
        } else {
            return ""; # nothing to complete
        }
    }

    # non-arrays
    #
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        #
        if {[uplevel ${level} array exists $matches]} {
            return [VarCompletion ${matches}( ${level}]; # recursion
        } else {
            return ${pre}${matches}[Right ${pre}]
        }
    } elseif {"" != $matches} { ; # more than one match
        set common [tclreadline::GetCommon ${matches}]
        set common [GetCommon ${matches}]
        if {"" == ${common}} {
            return [tclreadline::Format ${matches} ${text}]
            return [Format ${matches} ${text}]
        } else {
            return [string trim "${pre}${common} ${matches}"]
        }
    } else {
        return ""; # nothing to complete
    }
}

proc tclreadline::FullQualifiedMatches {qualifier matchlist} {
proc FullQualifiedMatches {qualifier matchlist} {
    set new ""
    foreach entry ${matchlist} {
        set full ${qualifier}::${entry}
        if {"" != [namespace which ${full}]} {
            lappend new ${full}
        }
    }
    return ${new}
}

proc tclreadline::ProcsOnlyCompletion {cmd} {
    return [tclreadline::CommandCompletion ${cmd} procs]
proc ProcsOnlyCompletion {cmd} {
    return [CommandCompletion ${cmd} procs]
}

proc tclreadline::CommandsOnlyCompletion {cmd} {
    return [tclreadline::CommandCompletion ${cmd} commands]
proc CommandsOnlyCompletion {cmd} {
    return [CommandCompletion ${cmd} commands]
}

proc tclreadline::CommandCompletion {cmd {action both} {spc ::}} {
proc CommandCompletion {cmd {action both} {spc ::}} {
    set quali [namespace qualifiers ${cmd}]
    if {[llength ${quali}]} {
        set rec [CommandCompletion [namespace tail ${cmd}] ${action} ${quali}]
        return [FullQualifiedMatches ${quali} ${rec}]
    }
    # puts stderr \ncmd=|$cmd|\n
    set cmd [string trim ${cmd}]*
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# % puts $b<TAB>
# part  == $b
# start == 5
# end   == 7
# line  == "$puts $b"
#
proc tclreadline::ScriptCompleter {part start end line} {
proc ScriptCompleter {part start end line} {
    # puts stderr "(ScriptCompleter) |$part| $start $end |$line|"
    variable known_cmds
    if {{$} == [string index $part 0]} {
        # check for a !$ history event
        #
        if {$start > 0} {
            if {{!} == [string index $line [expr $start - 1]]} {
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    # line  == "puts bla; put $b"
    # [SubCmd] --> {1 " put $b"} == sub
    # new_start = [lindex $sub 0] == 1
    # new_end   = [expr $end - ($start - $new_start)] == 4
    # new_part  == $part == put
    # new_line  = [lindex $sub 1] == " put $b"
    # 
    } elseif {"" != [set sub [tclreadline::SubCmd $start $line]]} {
    } elseif {"" != [set sub [SubCmd $start $line]]} {
        set new_start [lindex $sub 0]
        set new_end [expr $end - ($start - $new_start)]
        set new_line [lindex $sub 1]
        # puts stderr "(SubCmd) $new_start $new_end $new_line"
        return \
            [tclreadline::ScriptCompleter $part $new_start $new_end $new_line]
            [ScriptCompleter $part $new_start $new_end $new_line]
    } elseif {0 == \
        [set pos [tclreadline::PartPosition $part $start $end $line]]} {
        [set pos [PartPosition $part $start $end $line]]} {
        # puts stderr "(PartPosition) $part $start $end $line"
        # set matches [array names known_cmds "[string trim ${part}]*"]
        set all [CommandCompletion ${part}]
        #puts \nmatches=$matches\n
        return [tclreadline::Format $all $part]
        return [Format $all $part]
    } else {
        # try to use $pos further ...
        # regsub -all -- \" $line {\"} thisline
        set thisline [QuoteQuotes $line]
        set cmd [lindex $thisline 0]
        if {"." == [string index [lindex ${line} 0] 0]} {
            set alias WIDGET
        } else {
            set alias ${cmd}
            set alias [lindex [QuoteQuotes ${line}] 0]
        }
        foreach cmd [list ${alias} tclreadline_complete_unknown] {
        if {"" != [namespace eval ::tclreadline \
            "info procs complete($alias)"]} {
            # to be more error-proof, we could check here,
            # if complete($cmd) takes exactly 5 arguments.
            if {"\"" == [string index $part 0] \
            || "\{" == [string index $part 0]} {
                set mod [string range $part 1 end]
            } else {
                set mod $part
            }
            if {[catch [list set script_result \
                [::tclreadline::complete($alias) $part \
                $start $end $line $pos $mod]] msg]} {
                error "error during evaluation of `complete($alias)'"
            }
            return ${script_result}
        } elseif {"" != [array names known_cmds $cmd]} {
            if {"" != [namespace eval ::tclreadline \
                [list info procs complete(${cmd})]]
            } {
                # to be more error-proof, we check here,
                # if complete($cmd) takes exactly 5 arguments.
                #
                if {6 != [set arguments [llength \
                    [namespace eval ::tclreadline \
                    [list info args complete(${cmd})]]]]
                } {
                    error [list complete(${cmd}) takes ${arguments} \
                    arguments, but should take exactly 6.]
                }

                # remove leading quotes
                #
                if {"\"" == [string index $part 0] \
                    || "\{" == [string index $part 0]
                } {
                    set mod [string range $part 1 end]
                } else {
                    set mod $part
                }

                if {[catch [list set script_result \
                    [complete(${cmd}) $part \
                    $start $end $line $pos $mod]] msg]
                } {
                    error "error during evaluation of `complete(${cmd})'"
                }
                return ${script_result}
            }
        }
        # no specific command completer found.
        if {"" != [array names known_cmds $cmd]} {
            set current [lindex $known_cmds($cmd) $pos]
            if {"" != $current && "" == [string trim $part]} {
                return $current
            } else {
                return ""
            }
        } else {
            return ""
        }
    }
    error "{NOTREACHED (this is probably an error)}"
}

proc tclreadline::ls {args} {
proc ls {args} {
    if {[exec uname -s] == "Linux"} {
        eval exec ls --color -FC [::tclreadline::Glob $args]
        eval exec ls --color -FC [Glob $args]
    } else {
        eval exec ls -FC [::tclreadline::Glob $args]
        eval exec ls -FC [Glob $args]
    }
}

proc ::tclreadline::Setup {args} {
proc Setup {args} {

    uplevel #0 {

        if {[info commands ::tclreadline::readline] == ""} {
        if {"" == [info commands ::tclreadline::readline]} {
            ::tclreadline::Init
        }
        tclreadline::readline customcompleter tclreadline::ScriptCompleter
        ::tclreadline::readline customcompleter ::tclreadline::ScriptCompleter

        if {[catch {set a [::tclreadline::prompt1]}] \
            && [info nameofexecutable] != ""} {

            namespace eval ::tclreadline {
                variable prompt_string
                set base [file tail [info nameofexecutable]]
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                    if [info exists env(HOME)] {
                        regsub $env(HOME) $pwd "~" pwd
                    }
                    return "$prompt_string \[$pwd\]"
                }
            }
            # puts body=[info body ::tclreadline::prompt1]
        }

        if {[info procs exit] == ""} {
        if {"" == [info procs exit]} {

            catch {rename ::tclreadline::Exit ""}
            rename exit ::tclreadline::Exit

            proc exit {args} {

                if {[catch {
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    } else {
        if [info exists env(HOME)] {
            set historyfile  $env(HOME)/.tclsh-history
        } else {
            set historyfile  .tclsh-history
        }
    }
    set msg [::tclreadline::readline initialize $historyfile]
    set msg [readline initialize $historyfile]
    if {$msg != ""} {
        puts stderr "$msg"
    }

    ::tclreadline::InitCmds
    InitCmds

    rename ::tclreadline::Setup ""
    rename Setup ""
}

proc ::tclreadline::HistoryFileGet {} {
proc HistoryFileGet {} {
    variable historyfile
    return $historyfile
}

proc ::tclreadline::Glob {string} {
proc Glob {string} {

    set commandstring ""
    foreach name $string {
        set replace [glob -nocomplain -- $name]
        if {$replace == ""} {
            lappend commandstring $name
        } else {
            lappend commandstring $replace
        }
    }
    # return $commandstring
    # Christian Krone <krischan@sql.de> proposed
    return [eval concat $commandstring]
}



proc ::tclreadline::Loop {args} {
proc Loop {args} {

    eval ::tclreadline::Setup ${args}
    eval Setup ${args}

    uplevel #0 {

        while {1} {

            if [info exists tcl_prompt2] {
                set ::tclreadline::prompt2 $tcl_prompt2
                set prompt2 $tcl_prompt2
            } else {
                set ::tclreadline::prompt2 ">"
                set prompt2 ">"
            }

            if {[catch {
            if {[namespace eval ::tclreadline {[info procs prompt1]}] != ""} {
                set ::tclreadline::LINE [::tclreadline::readline read \
                if {"" != [namespace eval ::tclreadline {info procs prompt1}]} {
                    set LINE [::tclreadline::readline read \
                    [::tclreadline::prompt1]]
            } else {
                set ::tclreadline::LINE [::tclreadline::readline read %]
            }
                } else {
                    set LINE [::tclreadline::readline read %]
                }

            while {![::tclreadline::readline complete $::tclreadline::LINE]} {
                append ::tclreadline::LINE "\n"
                append ::tclreadline::LINE [::tclreadline::readline read \
                while {![::tclreadline::readline complete $LINE]} {
                    append LINE "\n"
                    append LINE [tclreadline::readline read ${prompt2}]
                    ${::tclreadline::prompt2}]
            }
                }
            } msg]} {
                puts stderr \n$msg
                puts stderr [list tclreadline::Loop: error. $msg]
                continue
            }

            # Magnus Eriksson <magnus.eriksson@netinsight.se> proposed
            history add $::tclreadline::LINE
            history add $LINE

            if [catch {
                set result [eval $::tclreadline::LINE]
                if {$result != "" && [::tclreadline::Print]} {
                set result [eval $LINE]
                if {$result != "" && [tclreadline::Print]} {
                    puts $result
                }
                set result ""
            } msg] {
                puts stderr $msg
                puts stderr [list while evaluating $LINE]
            }

        }
    }
}

proc ::tclreadline::Print {args} {
proc Print {args} {
    variable PRINT
    if ![info exists PRINT] {
        set ::tclreadline::PRINT yes
        set PRINT yes
    }
    if [regexp -nocase \(true\|yes\|1\) $args] {
        set ::tclreadline::PRINT yes
        set PRINT yes
    } elseif [regexp -nocase \(false\|no\|0\) $args] {
        set ::tclreadline::PRINT no
        set PRINT no
    }
    return $PRINT
}

proc ::tclreadline::InitCmds {} {
proc InitCmds {} {
    global tcl_version tk_version
    if {[info exists tcl_version]} {
        ::tclreadline::InitTclCmds
        InitTclCmds
    }
    if {[info exists tk_version]} {
        ::tclreadline::InitTkCmds
        InitTkCmds
    }
    rename tclreadline::InitCmds ""
    rename InitCmds ""
}

proc ::tclreadline::InitTclCmds {} {
proc InitTclCmds {} {
    variable known_cmds
    foreach line {
        "after option ?arg arg ...?"
        "append varName ?value value ...?"
        "array option arrayName ?arg ...?"
        "bgerror"
        "binary option ?arg arg ...?"
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        "switch ?switches? string pattern body ... ?default body?"
        "time <command> ?count?"
        "unknown <cmdName> ?arg? ?...?"
        "uplevel ?level? command ?arg ...?"
        "vwait name"
        "while test command"
    } {
        tclreadline::readline add $line
        readline add $line
        set known_cmds([lindex $line 0]) ${line}
    }
    rename tclreadline::InitTclCmds ""
    rename InitTclCmds ""
}

proc ::tclreadline::InitTkCmds {} {
proc InitTkCmds {} {
    variable known_cmds
    foreach line {
        "bind window ?pattern? ?command?"
        "bindtags window ?tags?"
        "button pathName ?options?"
        "canvas pathName ?options?"
        "checkbutton pathName ?options?"
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        "text pathName ?options?"
        "tk option ?arg?"
        "tkwait variable|visibility|window name"
        "toplevel pathName ?options?"
        "winfo option ?arg?"
        "wm option window ?arg ...?"
    } {
        tclreadline::readline add $line
        readline add $line
        set known_cmds([lindex $line 0]) ${line}
    }
rename tclreadline::InitTkCmds ""
    rename InitTkCmds ""
}


namespace eval tclreadline {

# explicit command completers
#

# -------------------------------------
#                 TCL
# -------------------------------------

proc complete(append) {text start end line pos mod} {
    if {1 == $pos} {
        return [VarCompletion ${text}]
    }
    return ""
}

proc complete(if) {text start end line pos mod} {
    # TODO: this is not good yet.
    if {2 == $pos} {
        return [FmtFindInList $text {then}]
        return [AttemptFromList $text {then}]
    } elseif {$pos > 2} {
        set prev [PreviousWord ${start} ${line}]
        switch $prev {
            then -
            else -
            elseif { return "" }
        }
        return [FmtFindInList $text {then else elseif}]
        return [AttemptFromList $text {then else elseif}]
    }
}

proc complete(incr) {text start end line pos mod} {
    if {1 == $pos} {
        set matches [uplevel 2 info vars "${mod}*"]
        set final ""
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proc complete(array) {text start end line pos mod} {
    if {1 == $pos} {
        set cmds {
            anymore donesearch exists get names
            nextelement set size startsearch
        }
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            anymore -
            donesearch -
            exists -
            get -
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}

proc complete(binary) {text start end line pos mod} {
    if {1 == $pos} {
        set cmds {
            format scan
        }
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
# 
#     } elseif {2 == $pos} {
#         set cmd [lindex $line 1]
#         switch -- $cmd {
#             format -
#             scan -
#         }
# 
    }
    return ""
}

proc complete(clock) {text start end line pos mod} {
    if {1 == $pos} {
        set cmds {clicks format scan seconds}
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            clicks {}
            format {
                if {"" == [lindex $line 2]} {
                    return <clockValue>
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-
+







    } elseif {3 == $pos} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            clicks {}
            format {
                set sub [lindex $line 3]
                set subcmds {-fmt -gmt}
                return [FmtFindInList $text $subcmds]
                return [AttemptFromList $text $subcmds]
            }
            scan {
                set sub [lindex $line 3]
                set subcmds {-base -gmt}
                return [FmtFindInList $text $subcmds]
                return [AttemptFromList $text $subcmds]
            }
            seconds {}
        }
    }
    return ""
}

proc complete(encoding) {text start end line pos mod} {
    if {1 == $pos} {
        set cmds {convertfrom convertto names system}
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            names {}
            convertfrom -
            convertto -
            system {
                set enc [encoding names]
                return [FmtFindInList ${text} ${enc}]
                return [AttemptFromList ${text} ${enc}]
            }
        }
    }
    return ""
}

proc complete(expr) {text start end line pos mod} {
    set cmds {
        acos    cos     hypot   sinh 
        asin    cosh    log     sqrt 
        atan    exp     log10   tan 
        atan2   floor   pow     tanh 
        ceil    fmod    sin     abs 
        double  int     rand    round 
        srand 
    }
    return [FmtFindInList $text $cmds]
    return [AttemptFromList $text $cmds]
}

proc complete(fconfigure) {text start end line pos mod} {
    if {1 == $pos} {
        return [ChannelId ${mod}]
    } else {
        set option [PreviousWord ${start} ${line}]
        switch -- $option {
            -blocking {
                return [FmtFindInList ${text} {yes no}]
                return [AttemptFromList ${text} {yes no}]
            }
            -buffering {
                return [FmtFindInList ${text} {full line none}]
                return [AttemptFromList ${text} {full line none}]
            }
            -buffersize {
                if {![llength ${text}} {
                    return <newSize>
                }
            }
            -encoding {
                set enc [encoding names]
                return [FmtFindInList ${text} ${enc}]
                return [AttemptFromList ${text} ${enc}]
            }
            -eofchar {
                if {![llength ${text}]} {
                    return [list {{<inChar> <outChar>}}]
                }
            }
            -translation {
                return [FmtFindInList ${text} {auto binary cr crlf lf}]
                return [AttemptFromList ${text} {auto binary cr crlf lf}]
            }
        }
        set cmds {
            -blocking
            -buffering
            -buffersize
            -encoding
            -eofchar
            -translation
        }
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    }
    return ""
}

proc complete(fcopy) {text start end line pos mod} {
    if {1 == $pos} {
        return [InChannelId ${mod}]
    } elseif {2 == $pos} {
        return [OutChannelId ${mod}]
    } else {
        set option [PreviousWord ${start} ${line}]
        switch -- $option {
            -size {
                if {![llength ${mod}]} { return <size> }
            }
            -command {
                if {![llength ${mod}]} { return <callback> }
            }
        }
        return [FmtFindInList $text {-size -command}]
        return [AttemptFromList $text {-size -command}]
    }
    return ""
}

proc complete(file) {text start end line pos mod} {
    if {1 == $pos} {
        set cmds {
            atime attributes copy delete dirname executable exists
            extension isdirectory isfile join lstat mtime mkdir
            nativename owned pathtype readable readlink rename
            rootname size split stat tail type volumes writable
        }
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            atime -
            attributes -
            dirname -
            executable -
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-
+














-
+

















-
+







            writable {
                return ""
            }

            copy -
            delete -
            rename {
                set match [FmtFindInList ${mod} {-force}]
                set match [AttemptFromList ${mod} {-force}]
                if {[llength ${match}] && [llength ${mod}]} {
                    return ${match}
                } else {
                    return ""
                }
            }
        }
    }
}

proc complete(fileevent) {text start end line pos mod} {
    if {1 == $pos} {
        return [ChannelId ${mod}]
    } elseif {2 == $pos} {
        return [FmtFindInList ${mod} {readable writable}]
        return [AttemptFromList ${mod} {readable writable}]
    }
}

proc complete(flush) {text start end line pos mod} {
    if {1 == $pos} {
        return [ChannelId ${mod}]
    }
}

proc complete(gets) {text start end line pos mod} {
    if {1 == $pos} {
        return [InChannelId ${mod}]
    }
}

proc complete(glob) {text start end line pos mod} {
    if {1 == $pos} {
        set matches [FmtFindInList ${mod} {-nocomplain --}]
        set matches [AttemptFromList ${mod} {-nocomplain --}]
        if {[llength [string trim ${mod}]] && [llength ${matches}]} {
            return ${matches}
        }
    }
    return ""
}

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-
+








proc complete(info) {text start end line pos mod} {
    if {1 == $pos} {
        set cmds {
            args body cmdcount commands complete default exists
            globals hostname level library loaded locals nameofexecutable
            patchlevel procs script sharedlibextension tclversion vars}
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            args -
            body -
            default -
            procs { return [complete(proc) ${text} 0 0 ${line} 1 ${mod}] }
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-
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-
+








proc complete(interp) {text start end line pos mod} {
    set cmd [lindex $line 1]
    if {1 == $pos} {
        set cmds {
            alias aliases create delete eval exists expose hide hidden
            issafe invokehidden marktrusted slaves share target transfer}
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        switch -- $cmd {
            create {
                return [FmtFindInList $text {-safe -- ?path?}]
                return [AttemptFromList $text {-safe -- ?path?}]
            }

            eval -
            exists -
            expose -
            hide -
            hidden -
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-
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-
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-
+







        }
    } elseif {3 == $pos} {
        switch -- $cmd {

            alias {if {![llength ${mod}]} { return <srcCmd> }}

            create {
                return [FmtFindInList $text {-safe -- ?path?}]
                return [AttemptFromList $text {-safe -- ?path?}]
            }

            eval {if {![llength ${mod}]} { return <arg> }}
            delete {if {![llength ${mod}]} { return ?path? }}

            expose {if {![llength ${mod}]} { return <hiddenName> }}
            hide {if {![llength ${mod}]} { return <exposedCmdName> }}

            invokehidden {
                return \
                [FmtFindInList $text {?-global? <hiddenCmdName}]
                [AttemptFromList $text {?-global? <hiddenCmdName}]
            }

            target {if {![llength ${mod}]} { return <alias> }}

            exists {}
            hidden {}
            marktrusted {}
            aliases {}
            issafe {}
            slaves {}

            share -
            tranfer {return [ChannelId ${mod}]}
        }
    } elseif {4 == $pos} {
        switch -- $cmd {

            alias {if {![llength ${mod}]} { return <targetPath> }}

            create {
                return [FmtFindInList $text {-safe -- path}]
                return [AttemptFromList $text {-safe -- path}]
            }

            expose {if {![llength ${mod}]} { return ?exposedCmdName? }}
            hide {if {![llength ${mod}]} { return ?hiddenCmdName? }}

            share -
            tranfer {if {![llength ${mod}]} { return ?destPath? }}
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-
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-
+














-
+










-
+







        return "?element?"
    }
    return ""
}

proc complete(lsearch) {text start end line pos mod} {
    if {1 == $pos} {
        set options [FmtFindInListSpecial ${mod} {
        set options [MenuFromList ${mod} {
            -exact -glob -regexp <list>}]
        set matches [ListCompletion ${text}]
        return [string trim "${matches} ${options}"]
    } else {
        if {![llength ${mod}]} {
            set opt [lindex ${line} 1]
            if {[llength [FmtFindInListSpecial ${opt} {
            if {[llength [MenuFromList ${opt} {
                -exact -glob -regexp }]]} {
                incr pos -1
            }
            if {1 == $pos} {
                return <list>
            } elseif {2 == $pos} {
                return <pattern>
            }
        }
    }
    return ""
}

proc complete(lsort) {text start end line pos mod} {
    set options [FmtFindInListSpecial ${mod} {
    set options [MenuFromList ${mod} {
        -ascii -dictionary -integer -real -command
        -increasing -decreasing -index
    }]
    set matches [ListCompletion ${text}]
    return [string trim "${matches} ${options}"]
}

proc complete(history) {text start end line pos mod} {
    if {1 == $pos} {
        set cmds {add change clear event info keep nextid redo}
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == ${pos}} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            add { if {![llength ${mod}]} { return <newValue> } }
            change { if {![llength ${mod}]} { return <newValue> } }

            info -
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-
+







-
+


-
-
+
+



-
+








-
+





-
+





-
+







    set space_matches [namespace children :: [string trim ${mod}*]]
    # puts \nspace_matches=|${space_matches}|
    set cmd [lindex $line 1]
    if {1 == $pos} {
        set cmds {
            children code current delete eval export forget
            import inscope origin parent qualifiers tail which}
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        switch -- $cmd {
            children -
            delete -
            eval -
            inscope -
            forget -
            parent { return [FmtFindInList ${mod} $space_matches] }
            parent { return [AttemptFromList ${mod} $space_matches] }
            code { return "" }
            current {}
            export { return [FmtFindInListSpecial ${mod} -clear ?pattern?] }
            import { return [FmtFindInListSpecial ${mod} -force] }
            export { return [MenuFromList ${mod} -clear ?pattern?] }
            import { return [MenuFromList ${mod} -force] }
            origin { if {![llength ${mod}]} { return <command> } }
            qualifiers -
            tail { if {![llength ${mod}]} { return <string> } }
            which { return [FmtFindInListSpecial ${mod} {
            which { return [MenuFromList ${mod} {
                -command -variable <name>}] }
        }
     #      forget { if {![llength ${mod}]} { return ?pattern? } }
    } elseif {3 == $pos && "inscope" == $cmd} {
            if {![llength ${mod}]} { return arg }
    } else {
        switch -- $cmd {
            children { if {![llength ${mod}]} { return ?pattern? } }
            delete { return [FmtFindInList $text $space_matches] }
            delete { return [AttemptFromList $text $space_matches] }
            eval { if {![llength ${mod}]} { return ?arg? } }
            inscope { if {![llength ${mod}]} { return ?arg? } }
            parent {}
            code {}
            current {}
            export { return [FmtFindInListSpecial ${mod} ?pattern?] }
            export { return [MenuFromList ${mod} ?pattern?] }
            forget -
            import { if {![llength ${mod}]} { return ?pattern? } }
            origin {}
            qualifiers {}
            tail {}
            which { return [FmtFindInListSpecial $text {
            which { return [MenuFromList $text {
                -command -variable <name>}] }
        }
    }
    return ""
}

proc complete(open) {text start end line pos mod} {
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-
+





-
+


-
+














-
-
+
+















-
+








proc complete(package) {text start end line pos mod} {
    set cmd [lindex $line 1]
    if {1 == $pos} {
        set cmds {
            forget ifneeded names present provide require
            unknown vcompare versions vsatisfies}
        return [FmtFindInList $text $cmds]
        return [AttemptFromList $text $cmds]
    } elseif {2 == $pos} {
        switch -- $cmd {
            forget -
            ifneeded -
            provide -
            versions { return [FmtFindInListSpecial ${mod} [package names]] }
            versions { return [MenuFromList ${mod} [package names]] }
            present -
            require {
                return [FmtFindInListSpecial ${mod} "-exact [package names]"] }
                return [MenuFromList ${mod} "-exact [package names]"] }
            names {}
            unknown { if {![llength ${mod}]} { return ?command? } }
            vcompare -
            vsatisfies { if {![llength ${mod}]} { return <version1> } }
        }
    } elseif {3 == $pos} {
        switch -- $cmd {
            forget {}
            ifneeded { if {![llength ${mod}]} { return <version> } }
            provide { if {![llength ${mod}]} { return ?version? } }
            versions {}
            present -
            require {
                set prev [PreviousWord ${start} ${line}]
                if {[llength [FmtFindInListSpecial ${prev} -exact]]} {
                    return [FmtFindInListSpecial ${mod} [package names]]
                if {[llength [MenuFromList ${prev} -exact]]} {
                    return [MenuFromList ${mod} [package names]]
                } elseif {![llength ${mod}]} {
                    return ?version?
                }
            }
            names {}
            unknown {}
            vcompare -
            vsatisfies { if {![llength ${mod}]} { return <version2> } }
        }
    } 
    return ""
}

proc complete(pkg_mkIndex) {text start end line pos mod} {
    set cmds [RemoveUsedOptions ${line} {-direct -load -verbose -- <dir>} {--}]
    set res [string trim [FmtFindInListSpecial $text $cmds]]
    set res [string trim [MenuFromList $text $cmds]]
    if {[regexp -- [PreviousWord ${start} ${line}] -load] \
        && ![llength ${mod}]} {
            return <pkgPat>
    }
    if {![llength [join ${res}]]} {
        return ""
    } else {
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-
+



-
+





+









-
+



-
+
















-
+
















-
+


















-
+









-
+






-
+




-
+










-
+







        }
    }
    return ""
}

proc complete(puts) {text start end line pos mod} {
    if {1 == $pos} {
        return [FmtFindInListSpecial ${mod} "-nonewline [OutChannelId ${mod}]"]
        return [MenuFromList ${mod} "-nonewline [OutChannelId ${mod}]"]
    } elseif {2 <= $pos} {
        if {![llength ${mod}]} {
            set opt [lindex ${line} 1]
            if {[llength [FmtFindInListSpecial ${opt} {-nonewline}]]} {
            if {[llength [MenuFromList ${opt} {-nonewline}]]} {
                incr pos -1
            }
            if {1 == $pos} {
                return [OutChannelId ${mod}]
            } elseif {2 == $pos} {
                return [Menu <string>]
                return <string>
            }
        }
    }
    return ""
}

proc complete(read) {text start end line pos mod} {
    if {1 == $pos} {
        return [FmtFindInListSpecial ${mod} "-nonewline [InChannelId ${mod}]"]
        return [MenuFromList ${mod} "-nonewline [InChannelId ${mod}]"]
    } elseif {2 == $pos} {
        if {![llength ${mod}]} {
            set opt [lindex ${line} 1]
            if {[llength [FmtFindInListSpecial ${opt} {-nonewline}]]} {
            if {[llength [MenuFromList ${opt} {-nonewline}]]} {
                return [InChannelId ${mod}]
            } elseif {![llength ${mod}]} {
                return <numBytes>
            }
        }
    }
    return ""
}

proc complete(regexp) {text start end line pos mod} {
    set prev [PreviousWord ${start} ${line}]
    if {[llength ${prev}] && ("-" == [string index ${prev} 0] || 1 == $pos)} {
        set cmds [RemoveUsedOptions ${line} {
            -nocase -indices -expanded -line 
            -linestop -lineanchor -about <expression> --} {--}]
        if {[llength ${cmds}]} {
            return [string trim [FmtFindInListSpecial $text $cmds]]
            return [string trim [MenuFromList $text $cmds]]
        }
    } else {
        set virtual_pos [expr ${pos} - [FirstNonOption ${line}]]
        switch -- ${virtual_pos} {
            1 { if {![llength ${mod}]} { return <string> } }
            2 { if {![llength ${mod}]} { return ?matchVar? } }
            default { if {![llength ${mod}]} { return ?subMatchVar? } }
        }
    }
    return ""
}

proc complete(regsub) {text start end line pos mod} {
    set prev [PreviousWord ${start} ${line}]
    if {[llength ${prev}] && ("-" == [string index ${prev} 0] || 1 == $pos)} {
        set cmds [RemoveUsedOptions ${line} {-all -nocase -- <expression>} {--}]
        set res [string trim [FmtFindInListSpecial ${mod} ${cmds}]]
        set res [string trim [MenuFromList ${mod} ${cmds}]]
        if {[llength ${res}]} {
            return ${res}
        }
    } else {
        set virtual_pos [expr ${pos} - [FirstNonOption ${line}]]
        switch -- ${virtual_pos} {
            1 { if {![llength ${mod}]} { return <expression> } }
            2 { if {![llength ${mod}]} { return <string> } }
            3 { if {![llength ${mod}]} { return <subSpec> } }
            4 { if {![llength ${mod}]} { return <varName> } }
        }
    }
    return ""
}

proc complete(rename) {text start end line pos mod} {
    if {1 == $pos} {
        set all [CommandCompletion ${mod}]
        return [tclreadline::Format $all ${mod}]
        return [Format $all ${mod}]
    } elseif {2 == $pos && ![llength ${mod}]} {
        return <newName>
    }
    return ""
}

proc complete(return) {text start end line pos mod} {
    # TODO this is not perfect yet
    set cmds {-code -errorinfo -errorcode <string>}
    set res [FmtFindInListSpecial [PreviousWord ${start} ${line}] ${cmds}]
    set res [MenuFromList [PreviousWord ${start} ${line}] ${cmds}]
    if {1 == [llength ${res}]} {
        switch -- ${res} {
            -errorinfo { if {![llength ${mod}]} { return <info> } }
            -code -
            -errorcode {
                set codes {ok error return break continue}
                return [FmtFindInList ${mod} ${codes}]
                return [AttemptFromList ${mod} ${codes}]
            }
        }
    }
    set cmds [RemoveUsedOptions ${line} ${cmds}]
    set res [string trim [FmtFindInListSpecial ${mod} ${cmds}]]
    set res [string trim [MenuFromList ${mod} ${cmds}]]
    if {[llength ${res}]} {
        return ${res}
    }
    return ""
}

proc complete(seek) {text start end line pos mod} {
    if {1 == $pos} {
        return [ChannelId ${mod}]
    } elseif {2 == $pos} {
        return [FmtFindInList ${mod} {start current end}]
        return [AttemptFromList ${mod} {start current end}]
    }
    return ""
}

proc complete(set) {text start end line pos mod} {
    # puts stderr "\ntext=|$text| $start $end\n"
    # puts stderr \nline=|$line|\n
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-
+







    if {"-server" == ${cmd}} {
        # server sockets
        #
        if {2 == $pos && ![llength ${mod}]} { return <command> }
        switch -- ${prev} {
            -myaddr { if {![llength ${mod}]} { return <addr> } }
        }
        return [FmtFindInList ${mod} [concat {-error -sockname -peername}]]
        return [AttemptFromList ${mod} [concat {-error -sockname -peername}]]
    } else {
        # client sockets
        #
        switch -- ${prev} {
            -myaddr { if {![llength ${mod}]} { return <addr> } }
            -myport { if {![llength ${mod}]} { return <port> } }
        }
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-
+







                close $id
            } 
        }
        set cmds {-myaddr -myport -async -myaddr -error -sockname -peername}
        if {$pos <= 1} {
            lappend cmds -server
        }
        return [FmtFindInList ${mod} [concat ${cmds} ${hosts}]]
        return [AttemptFromList ${mod} [concat ${cmds} ${hosts}]]
    }
    return ""
}

proc complete(string) {text start end line pos mod} {
    set cmd [lindex ${line} 1]
    set cmds {
        compare first index last length match range tolower
        totitle toupper trim trimleft trimright wordend wordstart}
    if {1 == $pos} {
        return [FmtFindInList ${mod} ${cmds}]
        return [AttemptFromList ${mod} ${cmds}]
    } elseif {2 == $pos} {
        switch -- $cmd {
            compare -
            first -
            last { if {![llength ${mod}]} { return <string1> } }

            match { if {![llength ${mod}]} { return <pattern> } }
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-
+






-
+













-
+



-
+







    }
    return ""
}

proc complete(subst) {text start end line pos mod} {
    set opts {-nobackslashes -nocommands -novariables}
    set opts [RemoveUsedOptions ${line} ${opts}]
    return [FmtFindInList ${mod} [concat ${opts} <string>]]
    return [AttemptFromList ${mod} [concat ${opts} <string>]]
    return ""
}

proc complete(switch) {text start end line pos mod} {
    set opts {-exact -glob -regexp --}
    set opts [RemoveUsedOptions ${line} ${opts} {--}]
    return [FmtFindInList ${mod} [concat ${opts} <string>]]
    return [AttemptFromList ${mod} [concat ${opts} <string>]]
    return ""
}

proc complete(tell) {text start end line pos mod} {
    if {1 == $pos} {
        return [ChannelId ${mod}]
    }
    return ""
}

proc complete(trace) {text start end line pos mod} {
    set cmd [lindex ${line} 1]
    if {1 == $pos} {
        return [FmtFindInList ${mod} {variable vdelete vinfo}]
        return [AttemptFromList ${mod} {variable vdelete vinfo}]
    } elseif {2 == $pos} {
        return [Format [uplevel 2 info vars "${mod}*"] ${mod}]
    } elseif {3 == $pos && "variable" == ${cmd}} {
        return [FmtFindInList ${mod} {r w u}]
        return [AttemptFromList ${mod} {r w u}]
    }
    return ""
}

proc complete(update) {text start end line pos mod} {
    if {1 == $pos && ![llength ${mod}]} {
        return ?idletasks?
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-
+













-
+










-
+


-
+




-

            lappend options(value)    [lindex ${optline} 4]
        }
    }

    if {1 >= ${pos}} {
        set cmds [TrySubCmds ${widget}]
        if {[llength ${cmds}]} {
            return [FmtFindInList ${mod} ${cmds}]
            return [AttemptFromList ${mod} ${cmds}]
        }
    } elseif {2 <= ${pos} && 
        ([string match ${cmd}* cget] || \
         [string match ${cmd}* configure])} {
        set prev [PreviousWord ${start} ${line}]
        #puts \nprev=|$prev|
        #puts switches=|$options(switches)|
        #puts found=[lsearch -exact ${prev} $options(switches)]
        if {-1 != [set found [lsearch -exact $options(switches) ${prev}]]} {
            if {![llength ${mod}]} {
                return [lindex $options(value) ${found}]
            }
        } else {
            return [FmtFindInList ${mod} $options(switches)]
            return [AttemptFromList ${mod} $options(switches)]
        }
    }
    return ""
}

proc complete(winfo) {text start end line pos mod} {
    set cmd [lindex ${line} 1]
    if {1 >= ${pos}} {
        set cmds [TrySubCmds winfo]
        if {[llength ${cmds}]} {
            return [FmtFindInList ${mod} ${cmds}]
            return [AttemptFromList ${mod} ${cmds}]
        }
    } elseif {2 == ${pos}} {
        return [FmtFindInList ${mod} [WidgetList ${mod}]]
        return [AttemptFromList ${mod} [WidgetList ${mod}]]
    }
    return ""
}


}; # namespace tclreadline