Check-in [1624ab45b9]
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Overview
Comment: Modified Files: share/vim/VIM/vimrc src/tclreadline/tclreadlineSetup.tcl.in Added Files: src/csym/version src/tclreadline/Makefile.in src/tclreadline/tclreadline.c src/tclreadline/tclreadlineConfig.sh.in src/tclreadline/tclreadlineInit.tcl.in
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Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 1624ab45b9636083f4129f1ff60b318bf346468e
User & Date: johannes@zellner.org on 1999-08-29 23:51:00
Other Links: manifest | tags
Context
1999-08-29
23:56
tclreadlineSetup.tcl.in check-in: f99d41820c user: johannes@zellner.org tags: trunk
23:51
Modified Files: share/vim/VIM/vimrc src/tclreadline/tclreadlineSetup.tcl.in Added Files: src/csym/version src/tclreadline/Makefile.in src/tclreadline/tclreadline.c src/tclreadline/tclreadlineConfig.sh.in src/tclreadline/tclreadlineInit.tcl.in check-in: 1624ab45b9 user: johannes@zellner.org tags: trunk
14:41
Modified Files: share/vim/ft/tcl_ft.vim src/tclreadline/README src/tclreadline/configure.in src/tclreadline/tclreadline.h.in src/tclreadline/tclreadline.n.in src/tclreadline/tclreadlineSetup.tcl.in Added Files: bin/script/tcltags src/csym/version src/tclreadline/Makefile.in src/tclreadline/tclreadline.c src/tclreadline/tclreadlineConfig.sh.in src/tclreadline/tclreadlineInit.tcl.in check-in: a912dd1a5a user: johannes@zellner.org tags: trunk
Changes

Modified tclreadlineSetup.tcl.in from [3f57a0d3cc] to [2f6ce36029].

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#!/usr/local/bin/tclsh
#!/usr/locanl/bin/tclsh
# FILE: "/home/joze/src/tclreadline/tclreadlineSetup.tcl.in"
# LAST MODIFICATION: "Sun Aug 29 16:28:35 1999 (joze)"
# LAST MODIFICATION: "Mon Aug 30 01:34:07 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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# - lrange
# - lreplace
# - lsearch
# - lsort
# - history
# - load
# - namespace
# - open
# - package
# - pkg_mkIndex
# - proc
# - puts
# - pwd
# - pid
# - read
# - regexp
# - (registry is only on M$)
# - regsub
# - rename
# - (resource is on mac only)
# - return
# - scan # TODO
# - seek
# - socket
# - split # TODO
# - string
# - subst
# - switch
# - tell
# - time # TODO ??
# - trace
# - set
# - unknown
# - unset
# - update
# - uplevel
# - upvar
# - variable
# - vwait
# - while # TODO
# 


# package provide tclreadline @TCLREADLINE_VERSION@
package provide tclreadline 0.9

proc unknown args {
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    }
    return -code error "invalid command name \"$name\""
}

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

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

proc tclreadline::FmtFindInListSpecial {text lst} {
    if {![llength ${text}]} {
        return [string trim "{} ${lst}"]
    } else {
        return [string trim [FmtFindInList ${text} ${lst}]]
    }
}

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


# get the longest common completion
# e.g. str == {tcl_version tclreadline_version tclreadline_library}
# --> [tclreadline::GetCommon ${str}] == "tcl"
#
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            return [string trim "${pre}${common} ${matches}"]
        }
    } else {
        return ""; # nothing to complete
    }
}

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

proc tclreadline::CommandCompletion {cmd} {
proc tclreadline::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}]*
    if {"procs" != ${action}} {
    set commands [info commands [QuoteQuotes ${cmd}]]
    # puts stderr commands=|$commands|
    set procs [info procs [QuoteQuotes ${cmd}]]
    # puts stderr procs=|$procs|
    set matches [namespace eval :: concat ${commands} ${procs}]
    set namespaces [namespace children :: ${cmd}]
        set commands [namespace eval $spc "info commands [QuoteQuotes ${cmd}]"]
        # puts stderr commands=|$commands|
    } else {
        set commands ""
    }
    if {"commands" != ${action}} {
        set procs [namespace eval $spc "info procs [QuoteQuotes ${cmd}]"]
        # puts stderr procs=|$procs|
    } else {
        set procs ""
    }
    set matches [namespace eval $spc concat ${commands} ${procs}]
# 
#     foreach match ${matches} {
#         set full ${spc}::${match}
#         if {"" != [namespace which ${full}]} {
#             lappend new bla::${full}
#         }
#     }
# 
    set namespaces [namespace children $spc ${cmd}]
    if {![llength ${matches}] && 1 == [llength ${namespaces}]} {
        set namespaces [string trim ${namespaces}]
        regsub {^([^:])} $namespaces {::\1} namespaces
        set matches [namespace eval ${namespaces} \
        {concat [info commands] [info procs]}]
    #    set matches [namespace eval ${namespaces} \
    #    {concat [info commands] [info procs]}]
        if {"procs" != ${action}} {
            set n_commands [namespace eval ${namespaces} "info commands"]
        } else {
            set n_commands ""
        }
        if {"commands" != ${action}} {
            set n_procs [namespace eval ${namespaces} "info procs"]
        } else {
            set n_procs ""
        }
        set matches [string trim "${n_commands} ${n_procs}"]
        if {[llength ${matches}]} {
# 
            foreach match ${matches} {
                set full ${namespaces}::${match}
                if {"" != [namespace which ${full}]} {
                    lappend new ${namespaces}::${match}
#             foreach match ${matches} {
#                 set full ${namespaces}::${match}
#                 if {"" != [namespace which ${full}]} {
#                     lappend new ${namespaces}::${match}
                }
            }
            set matches ${new}
            unset new
#                 }
#             }
# 
#             set matches ${new}
#             unset new
# 
            set matches [FullQualifiedMatches ${namespaces} ${matches}]
            set namespaces ""
        }
    }
    return [string trim "${matches} ${namespaces}"]
}

# if the line entered so far is
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    } elseif {"" != [set sub [tclreadline::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]
    } elseif {0 == \
    } elseif {0 == [set pos [tclreadline::PartPosition $part $start $end $line]]} {
        [set pos [tclreadline::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]
    } 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 ${cmd}
        }
        if {"" != [namespace eval ::tclreadline "info procs complete($cmd)"]} {
        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 $part
            }
            return \
            [::tclreadline::complete($cmd) $part $start $end $line $pos $mod]
            if {[catch [list set script_result \
                [::tclreadline::complete($alias) $part \
                $start $end $line $pos $mod]] msg]} {
                error "error during evaluation of `complete($alias)'"
            }
            return ${script_result}
        } elseif {"" != [array names known_cmds $cmd]} {
            set current [lindex $known_cmds($cmd) $pos]
            if {"" != $current && "" == [string trim $part]} {
                return $current
            } else {
                return ""
            }
        } else {
            return ""
        }
    }
    return "{NOTREACHED (this is probably an error)}"
    error "{NOTREACHED (this is probably an error)}"
}

proc tclreadline::ls {args} {
    if {[exec uname -s] == "Linux"} {
        eval exec ls --color -FC [::tclreadline::Glob $args]
    } else {
        eval exec ls -FC [::tclreadline::Glob $args]
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        "break"
        "catch command ?varName?"
        "cd"
        "clock"
        "close <channelId>"
        "concat"
        "continue"
        "encoding"
        "eof <channelId>"
        "error message ?errorInfo? ?errorCode?"
        "eval arg ?arg ...?"
        "exec ?switches? arg ?arg ...?"
        "exit ?returnCode?"
        "expr arg ?arg ...?"
        "fblocked <channelId>"
        "fconfigure <channelId> ?optionName? ?value? ?optionName value?..."
        "fcopy input output ?-size size? ?-command callback?"
        "file"
        "fileevent channelId event ?script?"
        "flush channelId"
        "for start test next command"
        "foreach varList list ?varList list ...? command"
        "format formatString ?arg arg ...?"
        "gets channelId ?varName?"
        "glob"
        "global varName ?varName ...?"
        "history option"
        "incr varName ?increment?"
        "info option ?arg arg ...?"
        "interp cmd ?arg ...?"
        "join list ?joinString?"
        "lappend varName ?value value ...?"
        "lindex list index"
        "linsert list <index> <element> ?element ...?"
        "list"
        "llength list"
        "load"
        "lrange list first last"
        "lreplace list first last ?element element ...?"
        "lsearch ?mode? list pattern"
        "lsort ?options? list"
        "namespace subcommand ?arg ...?"
        "namespace"
        "open fileName ?access? ?permissions?"
        "package option ?arg arg ...?"
        "proc name args body"
        "puts ?-nonewline? ?channelId? string"
        "read ?-nonewline? channelId"
        "regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"
        "regsub ?switches? exp string subSpec varName"
        "rename oldName newName"
        "scan string format ?varName varName ...?"
        "scan <string> <format> ?varName varName ...?"
        "seek channelId offset ?origin?"
        "set varName ?newValue?"
        "socket ?-myaddr addr? ?-myport myport? ?-async? host port"
        "socket -server command ?-myaddr addr? port"
        "source fileName"
        "split string ?splitChars?"
        "source <fileName>"
        "split <string> ?splitChars?"
        "string option arg ?arg ...?"
        "subst ?-nobackslashes? ?-nocommands? ?-novariables? string"
        "switch ?switches? string pattern body ... ?default body?"
        "tell channelId"
        "time command ?count?"
        "time <command> ?count?"
        "trace option \[arg arg ...\]"
        "unset varName ?varName ...?"
        "unknown <cmdName> ?arg? ?...?"
        "uplevel ?level? command ?arg ...?"
        "upvar ?level? otherVar localVar ?otherVar localVar ...?"
        "vwait name"
        "while test command"
    } {
        tclreadline::readline add $line
        set known_cmds([lindex $line 0]) [lrange $line 1 end]
        set known_cmds([lindex $line 0]) ${line}
    }
    rename tclreadline::InitTclCmds ""
}

proc ::tclreadline::InitTkCmds {} {
    variable known_cmds
    foreach line {
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        "tk option ?arg?"
        "tkwait variable|visibility|window name"
        "toplevel pathName ?options?"
        "winfo option ?arg?"
        "wm option window ?arg ...?"
    } {
        tclreadline::readline add $line
        set known_cmds([lindex $line 0]) [lrange $line 1 end]
        set known_cmds([lindex $line 0]) ${line}
    }
rename tclreadline::InitTkCmds ""
}


namespace eval tclreadline {

# explicit command completers
#

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

proc complete(append) {text start end line pos mod} {
    if {1 == $pos} {
        return [VarCompletion ${text}]
    }
    return ""
}
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        return [FmtFindInList $text $cmds]
    } elseif {2 == $pos} {
        set cmd [lindex $line 1]
        switch -- $cmd {
            args -
            body -
            default -
            procs {
            procs { return [complete(proc) ${text} 0 0 ${line} 1 ${mod}] }
                set matches [uplevel 2 info procs ${mod}*]
                return [Format $matches $text]
            }
            complete { ; # TODO
            }
            level { ; # TODO
            }
            loaded { ;# TODO
            }
            commands -
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    } elseif {![llength ${mod}]} {
        return "?element?"
    }
    return ""
}

proc complete(lsearch) {text start end line pos mod} {
    if {1 == $pos} {
    set options [FmtFindInList $text {-exact -glob -regexp}]
    if {![llength ${mod}]} {
        set options [FmtFindInListSpecial ${mod} {
            -exact -glob -regexp <list>}]
        set matches [ListCompletion ${text}]
        return [string trim "${matches} ${options}"]
    } else {
        if {![llength ${mod}]} {
        # remove the common match `-'
        set options [lrange ${options} 1 end]
    }
    set opt [lindex ${line} 1]
    set option [FmtFindInList $opt {-exact -glob -regexp}]
    if {1 == $pos} {
            set opt [lindex ${line} 1]
            if {[llength [FmtFindInListSpecial ${opt} {
                -exact -glob -regexp }]]} {
                incr pos -1
            }
            if {1 == $pos} {
        set matches [ListCompletion ${text}]
        return [string trim "${matches} ${options}"]
    } elseif {2 == $pos && ![llength ${mod}]} {
        if {[llength ${option}]} {
            return "<list>"
        } else {
            return "<pattern>"
        }
                return <list>
            } elseif {2 == $pos} {
                return <pattern>
            }
    } elseif {3 == $pos && ![llength ${mod}]} {
        if {[llength ${option}]} {
            return "<pattern>"
        }
    }
    return ""
}

proc complete(lsort) {text start end line pos mod} {
    set options [FmtFindInList $text {
    set options [FmtFindInListSpecial ${mod} {
        -ascii -dictionary -integer -real -command
        -increasing -decreasing -index
    }]
    if {![llength ${mod}]} {
        # remove the common match `-'
        set options [lrange ${options} 1 end]
    }
    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}
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            event -
            redo { if {![llength ${mod}]} { return ?event? } }

            clear -
            nextid { return "" }
        }
    }
    return ""
}

proc complete(namespace) {text start end line pos mod} {
    regsub {^([^:])} ${mod} {::\1} mod
    # TODO dosn't work ???
    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]
    } elseif {2 == $pos} {
        set cmd [lindex $line 1]
        # TODO dosn't work ???
        # puts stderr \nmod=|$mod|\n
        # set matches [namespace children ::]
        # puts stderr \nmatches=$matches\n
        set space_matches [namespace children :: [string trim ${mod}]\*]
        switch -- $cmd {
            children -
            delete -
            eval -
            inscope -
            forget -
            parent { return [FmtFindInList ${mod} $space_matches] }
            code { return "" }
            current {}
            export { return [FmtFindInListSpecial ${mod} -clear ?pattern?] }
            import { return [FmtFindInListSpecial ${mod} -force] }
            origin { if {![llength ${mod}]} { return <command> } }
            qualifiers -
            tail { if {![llength ${mod}]} { return <string> } }
            which { return [FmtFindInListSpecial ${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] }
            eval { if {![llength ${mod}]} { return ?arg? } }
            inscope { if {![llength ${mod}]} { return ?arg? } }
            parent {
                return [FmtFindInList $text $space_matches]
            }
            code {
                return ""
            }
            current {}
            export {
            }
            forget {
            }
            import {
            parent {}
            code {}
            current {}
            export { return [FmtFindInListSpecial ${mod} ?pattern?] }
            forget -
            import { if {![llength ${mod}]} { return ?pattern? } }
            origin {}
            qualifiers {}
            tail {}
            which { return [FmtFindInListSpecial $text {
                -command -variable <name>}] }
        }
    }
    return ""
}

proc complete(open) {text start end line pos mod} {
    if {![llength ${mod}]} {
        if {2 == $pos} {
            return ?access?
        } elseif {3 == $pos} {
            return ?permissions?
        }
    }
    return ""
}

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]
    } elseif {2 == $pos} {
        switch -- $cmd {
            forget -
            ifneeded -
            provide -
            versions { return [FmtFindInListSpecial ${mod} [package names]] }
            present -
            require {
                return [FmtFindInListSpecial ${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]]
                } 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]]
    if {[regexp -- [PreviousWord ${start} ${line}] -load] \
        && ![llength ${mod}]} {
            return <pkgPat>
    }
    if {![llength [join ${res}]]} {
        return ""
    } else {
        return ${res}
    }
    return ""
}

proc complete(proc) {text start end line pos mod} {
    # puts known_procs=|${known_procs}|
    if {1 == $pos} {
        set known_procs [ProcsOnlyCompletion ${mod}]
        set common [GetCommon ${known_procs}]
        if {"" == ${common}} {
            return [Format ${known_procs} ${text}]
        } else {
            return [string trim "${common} ${known_procs}"]
        }
    } elseif {2 == $pos} {
        set proc [lindex $line 1]
        if {[catch {set args [uplevel 2 info args ${proc}]}]} {
            return ""
        } else {
            return [list "\{${args}\} \{"]
        }
    }
    return ""
}

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

proc complete(read) {text start end line pos mod} {
    if {1 == $pos} {
        return [FmtFindInListSpecial ${mod} "-nonewline [InChannelId ${mod}]"]
    } elseif {2 == $pos} {
        if {![llength ${mod}]} {
            set opt [lindex ${line} 1]
            if {[llength [FmtFindInListSpecial ${opt} {-nonewline}]]} {
                return [InChannelId ${mod}]
            } elseif {![llength ${mod}]} {
                return <numBytes>
            }
        }
    }
    return ""
}
            qualifiers {
            }
            tail {
            }
            which {
            }
        }
        # TODO
        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]]
        }
    } 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}]]
        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}]
    } 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}]
    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}]
            }
        }
    }
    set cmds [RemoveUsedOptions ${line} ${cmds}]
    set res [string trim [FmtFindInListSpecial ${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 ""
}

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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            return ""
        } else {
            return [Quote $value ${text}]
        }
    }
    return ""
}

proc complete(socket) {text start end line pos mod} {
    set cmd [lindex ${line} 1]
    set prev [PreviousWord ${start} ${line}]
    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}]]
    } else {
        # client sockets
        #
        switch -- ${prev} {
            -myaddr { if {![llength ${mod}]} { return <addr> } }
            -myport { if {![llength ${mod}]} { return <port> } }
        }

        # read the host table only once.
        #
        variable hosts
        if {![info exists hosts] && "-server" != ${cmd}} {
            set id [open /etc/hosts r]
            set hosts ""
            if {0 != ${id}} {
                while {-1 != [gets ${id} line]} {
                    regsub {#.*} ${line} {} line
                    if {[llength ${line}] >= 2} {
                        lappend hosts [lindex ${line} 1]
                    }
                }
                close $id
            } 
        }
        set cmds {-myaddr -myport -async -myaddr -error -sockname -peername}
        if {$pos <= 1} {
            lappend cmds -server
        }
        return [FmtFindInList ${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}]
    } elseif {2 == $pos} {
        switch -- $cmd {
            compare -
            first -
            last { if {![llength ${mod}]} { return <string1> } }

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

            index -
            length -
            range -
            tolower -
            totitle -
            toupper -
            trim -
            trimleft -
            trimright -
            wordend -
            wordstart { if {![llength ${mod}]} { return <string> } }
        }
    } elseif {3 == $pos} {
        switch -- $cmd {
            compare -
            first -
            last { if {![llength ${mod}]} { return <string2> } }

            index { if {![llength ${mod}]} { return <charIndex> } }
            length {}

            match { if {![llength ${mod}]} { return <string> } }

            range { if {![llength ${mod}]} { return <first> } }

            tolower -
            totitle -
            toupper {}

            trim -
            trimleft { if {![llength ${mod}]} { return ?chars? } }
            trimright -
            wordend -
            wordstart { if {![llength ${mod}]} { return <index> } }
        }
    }
    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 ""
}

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 ""
}

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}]
    } elseif {2 == $pos} {
        return [Format [uplevel 2 info vars "${mod}*"] ${mod}]
    } elseif {3 == $pos && "variable" == ${cmd}} {
        return [FmtFindInList ${mod} {r w u}]
    }
    return ""
}

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

proc complete(uplevel) {text start end line pos mod} {
    if {![llength ${mod}]} {
        if {1 == $pos} {
            return ?level?
        } elseif {2 == $pos} {
            return <command>
        } elseif {3 == $pos} {
            return ?arg?
        } elseif {4 == $pos} {
            return ?...?
        }
    }
    return ""
}

proc complete(upvar) {text start end line pos mod} {
    if {![llength ${mod}]} {
        if {1 == $pos} {
            return ?level?
        } elseif {2 == $pos} {
            return <otherVar>
        } elseif {3 == $pos} {
            return <myVar>
        } elseif {4 == $pos} {
            return ?...?
        }
    }
    return ""
}

proc complete(variable) {text start end line pos mod} {
    set modulo [expr $pos % 2]
    if {1 == ${modulo}} {
        return [VarCompletion ${mod}]
    } elseif {0 == ${modulo} && \
        ($text == "" || $text == "\"" || $text == "\{")} {
        set line [QuoteQuotes $line]
        incr pos -1
        if {[catch \
            "set value [list [uplevel [info level] set [lindex $line ${pos}]]]"\
            msg]} {
            return ""
        } else {
            return [Quote $value ${mod}]
        }
    }
    return ""
}

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

proc complete(unset) {text start end line pos mod} {
    return [VarCompletion ${text}]
}

# -------------------------------------
#                  TK
# -------------------------------------

# generic widget configuration

proc TrySubCmds cmd {
    set trystring ____
    set result ""
    if [catch {set result [${cmd} ${trystring}]} msg] {
        if {[regexp {bad *option.*____.*: *must *be( .*$)} ${msg} all raw]} {
            regsub -all -- , ${raw} { } raw
            set len [llength ${raw}]
            set len_2 [expr ${len} - 2]
            for {set i 0} {${i} < ${len}} {incr i} {
                set word [lindex ${raw} ${i}]
                if {"or" != ${word} && ${i} != ${len_2}} {
                    lappend result ${word}
                }

            }
        }
    }
    return ${result}
}
        
proc WidgetList {pattern} {
    regsub {^([^\.])} ${pattern} {\.\1} pattern
    if {[winfo exists ${pattern}]} {
        return [winfo children ${pattern}]
    } else {
        regsub {.[^.]*$} $pattern {} pattern
        if {[winfo exists ${pattern}]} {
            return [winfo children ${pattern}]
        } else {
            return ""
        }
    }
}

proc complete(WIDGET) {text start end line pos mod} {
    set widget [lindex ${line} 0]
    set cmd [lindex ${line} 1]

    # first we build an option table
    #
    if {[catch [list set option_table [${widget} configure]] msg]} {
        return ""
    }
    foreach optline ${option_table} {
        if {5 != [llength ${optline}]} continue else {
            lappend options(switches) [lindex ${optline} 0]
            lappend options(value)    [lindex ${optline} 4]
        }
    }

    if {1 >= ${pos}} {
        set cmds [TrySubCmds ${widget}]
        if {[llength ${cmds}]} {
            return [FmtFindInList ${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 ""
}

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}]
        }
    } elseif {2 == ${pos}} {
        return [FmtFindInList ${mod} [WidgetList ${mod}]]
    }
    return ""
}


}; # namespace tclreadline