console.tcl
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:27k
- # console.tcl --
- #
- # This code constructs the console window for an application. It
- # can be used by non-unix systems that do not have built-in support
- # for shells.
- #
- # RCS: @(#) $Id: console.tcl,v 1.22.2.7 2007/11/09 07:08:51 das Exp $
- #
- # Copyright (c) 1995-1997 Sun Microsystems, Inc.
- # Copyright (c) 1998-2000 Ajuba Solutions.
- # Copyright (c) 2007 Daniel A. Steffen <das@users.sourceforge.net>
- #
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
- # TODO: history - remember partially written command
- namespace eval ::tk::console {
- variable blinkTime 500 ; # msecs to blink braced range for
- variable blinkRange 1 ; # enable blinking of the entire braced range
- variable magicKeys 1 ; # enable brace matching and proc/var recognition
- variable maxLines 600 ; # maximum # of lines buffered in console
- variable showMatches 1 ; # show multiple expand matches
- variable inPlugin [info exists embed_args]
- variable defaultPrompt ; # default prompt if tcl_prompt1 isn't used
- if {$inPlugin} {
- set defaultPrompt {subst {[history nextid] % }}
- } else {
- set defaultPrompt {subst {([file tail [pwd]]) [history nextid] % }}
- }
- }
- # simple compat function for tkcon code added for this console
- interp alias {} EvalAttached {} consoleinterp eval
- # ::tk::ConsoleInit --
- # This procedure constructs and configures the console windows.
- #
- # Arguments:
- # None.
- proc ::tk::ConsoleInit {} {
- global tcl_platform
- if {![consoleinterp eval {set tcl_interactive}]} {
- wm withdraw .
- }
- if {$tcl_platform(platform) eq "macintosh"
- || [tk windowingsystem] eq "aqua"} {
- set mod "Cmd"
- } else {
- set mod "Ctrl"
- }
- if {[catch {menu .menubar} err]} { bgerror "INIT: $err" }
- .menubar add cascade -label File -menu .menubar.file -underline 0
- .menubar add cascade -label Edit -menu .menubar.edit -underline 0
- menu .menubar.file -tearoff 0
- .menubar.file add command -label [mc "Source..."]
- -underline 0 -command tk::ConsoleSource
- .menubar.file add command -label [mc "Hide Console"]
- -underline 0 -command {wm withdraw .}
- .menubar.file add command -label [mc "Clear Console"]
- -underline 0 -command {.console delete 1.0 "promptEnd linestart"}
- if {$tcl_platform(platform) eq "macintosh"
- || [tk windowingsystem] eq "aqua"} {
- .menubar.file add command -label [mc "Quit"]
- -command exit -accel Cmd-Q
- } else {
- .menubar.file add command -label [mc "Exit"]
- -underline 1 -command exit
- }
- menu .menubar.edit -tearoff 0
- .menubar.edit add command -label [mc "Cut"] -underline 2
- -command { event generate .console <<Cut>> } -accel "$mod+X"
- .menubar.edit add command -label [mc "Copy"] -underline 0
- -command { event generate .console <<Copy>> } -accel "$mod+C"
- .menubar.edit add command -label [mc "Paste"] -underline 1
- -command { event generate .console <<Paste>> } -accel "$mod+V"
- if {$tcl_platform(platform) ne "windows"} {
- .menubar.edit add command -label [mc "Clear"] -underline 2
- -command { event generate .console <<Clear>> }
- } else {
- .menubar.edit add command -label [mc "Delete"] -underline 0
- -command { event generate .console <<Clear>> } -accel "Del"
-
- .menubar add cascade -label Help -menu .menubar.help -underline 0
- menu .menubar.help -tearoff 0
- .menubar.help add command -label [mc "About..."]
- -underline 0 -command tk::ConsoleAbout
- }
- . configure -menu .menubar
- set con [text .console -yscrollcommand [list .sb set] -setgrid true]
- scrollbar .sb -command [list $con yview]
- pack .sb -side right -fill both
- pack $con -fill both -expand 1 -side left
- switch -exact $tcl_platform(platform) {
- "macintosh" {
- $con configure -font {Monaco 10 normal} -highlightthickness 0
- }
- "windows" {
- $con configure -font systemfixed
- }
- "unix" {
- if {[tk windowingsystem] eq "aqua"} {
- $con configure -font {Monaco 10 normal} -highlightthickness 0
- }
- }
- }
- ConsoleBind $con
- $con tag configure stderr -foreground red
- $con tag configure stdin -foreground blue
- $con tag configure prompt -foreground #8F4433
- $con tag configure proc -foreground #008800
- $con tag configure var -background #FFC0D0
- $con tag raise sel
- $con tag configure blink -background #FFFF00
- $con tag configure find -background #FFFF00
- focus $con
- wm protocol . WM_DELETE_WINDOW { wm withdraw . }
- wm title . [mc "Console"]
- flush stdout
- $con mark set output [$con index "end - 1 char"]
- tk::TextSetCursor $con end
- $con mark set promptEnd insert
- $con mark gravity promptEnd left
- # A variant of ConsolePrompt to avoid a 'puts' call
- set w $con
- set temp [$w index "end - 1 char"]
- $w mark set output end
- if {![consoleinterp eval "info exists tcl_prompt1"]} {
- set string [EvalAttached $::tk::console::defaultPrompt]
- $w insert output $string stdout
- }
- $w mark set output $temp
- ::tk::TextSetCursor $w end
- $w mark set promptEnd insert
- $w mark gravity promptEnd left
- if {$tcl_platform(platform) eq "windows"} {
- # Subtle work-around to erase the '% ' that tclMain.c prints out
- after idle [subst -nocommand {
- if {[$con get 1.0 output] eq "% "} { $con delete 1.0 output }
- }]
- }
- }
- # ::tk::ConsoleSource --
- #
- # Prompts the user for a file to source in the main interpreter.
- #
- # Arguments:
- # None.
- proc ::tk::ConsoleSource {} {
- set filename [tk_getOpenFile -defaultextension .tcl -parent .
- -title [mc "Select a file to source"]
- -filetypes [list
- [list [mc "Tcl Scripts"] .tcl]
- [list [mc "All Files"] *]]]
- if {$filename ne ""} {
- set cmd [list source $filename]
- if {[catch {consoleinterp eval $cmd} result]} {
- ConsoleOutput stderr "$resultn"
- }
- }
- }
- # ::tk::ConsoleInvoke --
- # Processes the command line input. If the command is complete it
- # is evaled in the main interpreter. Otherwise, the continuation
- # prompt is added and more input may be added.
- #
- # Arguments:
- # None.
- proc ::tk::ConsoleInvoke {args} {
- set ranges [.console tag ranges input]
- set cmd ""
- if {[llength $ranges]} {
- set pos 0
- while {[lindex $ranges $pos] ne ""} {
- set start [lindex $ranges $pos]
- set end [lindex $ranges [incr pos]]
- append cmd [.console get $start $end]
- incr pos
- }
- }
- if {$cmd eq ""} {
- ConsolePrompt
- } elseif {[info complete $cmd]} {
- .console mark set output end
- .console tag delete input
- set result [consoleinterp record $cmd]
- if {$result ne ""} {
- puts $result
- }
- ConsoleHistory reset
- ConsolePrompt
- } else {
- ConsolePrompt partial
- }
- .console yview -pickplace insert
- }
- # ::tk::ConsoleHistory --
- # This procedure implements command line history for the
- # console. In general is evals the history command in the
- # main interpreter to obtain the history. The variable
- # ::tk::HistNum is used to store the current location in the history.
- #
- # Arguments:
- # cmd - Which action to take: prev, next, reset.
- set ::tk::HistNum 1
- proc ::tk::ConsoleHistory {cmd} {
- variable HistNum
- switch $cmd {
- prev {
- incr HistNum -1
- if {$HistNum == 0} {
- set cmd {history event [expr {[history nextid] -1}]}
- } else {
- set cmd "history event $HistNum"
- }
- if {[catch {consoleinterp eval $cmd} cmd]} {
- incr HistNum
- return
- }
- .console delete promptEnd end
- .console insert promptEnd $cmd {input stdin}
- }
- next {
- incr HistNum
- if {$HistNum == 0} {
- set cmd {history event [expr {[history nextid] -1}]}
- } elseif {$HistNum > 0} {
- set cmd ""
- set HistNum 1
- } else {
- set cmd "history event $HistNum"
- }
- if {$cmd ne ""} {
- catch {consoleinterp eval $cmd} cmd
- }
- .console delete promptEnd end
- .console insert promptEnd $cmd {input stdin}
- }
- reset {
- set HistNum 1
- }
- }
- }
- # ::tk::ConsolePrompt --
- # This procedure draws the prompt. If tcl_prompt1 or tcl_prompt2
- # exists in the main interpreter it will be called to generate the
- # prompt. Otherwise, a hard coded default prompt is printed.
- #
- # Arguments:
- # partial - Flag to specify which prompt to print.
- proc ::tk::ConsolePrompt {{partial normal}} {
- set w .console
- if {$partial eq "normal"} {
- set temp [$w index "end - 1 char"]
- $w mark set output end
- if {[consoleinterp eval "info exists tcl_prompt1"]} {
- consoleinterp eval "eval [set tcl_prompt1]"
- } else {
- puts -nonewline [EvalAttached $::tk::console::defaultPrompt]
- }
- } else {
- set temp [$w index output]
- $w mark set output end
- if {[consoleinterp eval "info exists tcl_prompt2"]} {
- consoleinterp eval "eval [set tcl_prompt2]"
- } else {
- puts -nonewline "> "
- }
- }
- flush stdout
- $w mark set output $temp
- ::tk::TextSetCursor $w end
- $w mark set promptEnd insert
- $w mark gravity promptEnd left
- ::tk::console::ConstrainBuffer $w $::tk::console::maxLines
- $w see end
- }
- # ::tk::ConsoleBind --
- # This procedure first ensures that the default bindings for the Text
- # class have been defined. Then certain bindings are overridden for
- # the class.
- #
- # Arguments:
- # None.
- proc ::tk::ConsoleBind {w} {
- bindtags $w [list $w Console PostConsole [winfo toplevel $w] all]
- ## Get all Text bindings into Console
- foreach ev [bind Text] { bind Console $ev [bind Text $ev] }
- ## We really didn't want the newline insertion...
- bind Console <Control-Key-o> {}
- ## ...or any Control-v binding (would block <<Paste>>)
- bind Console <Control-Key-v> {}
- # For the moment, transpose isn't enabled until the console
- # gets and overhaul of how it handles input -- hobbs
- bind Console <Control-Key-t> {}
- # Ignore all Alt, Meta, and Control keypresses unless explicitly bound.
- # Otherwise, if a widget binding for one of these is defined, the
- bind Console <Alt-KeyPress> {# nothing }
- bind Console <Meta-KeyPress> {# nothing}
- bind Console <Control-KeyPress> {# nothing}
- foreach {ev key} {
- <<Console_Prev>> <Key-Up>
- <<Console_Next>> <Key-Down>
- <<Console_NextImmediate>> <Control-Key-n>
- <<Console_PrevImmediate>> <Control-Key-p>
- <<Console_PrevSearch>> <Control-Key-r>
- <<Console_NextSearch>> <Control-Key-s>
- <<Console_Expand>> <Key-Tab>
- <<Console_Expand>> <Key-Escape>
- <<Console_ExpandFile>> <Control-Shift-Key-F>
- <<Console_ExpandProc>> <Control-Shift-Key-P>
- <<Console_ExpandVar>> <Control-Shift-Key-V>
- <<Console_Tab>> <Control-Key-i>
- <<Console_Tab>> <Meta-Key-i>
- <<Console_Eval>> <Key-Return>
- <<Console_Eval>> <Key-KP_Enter>
- <<Console_Clear>> <Control-Key-l>
- <<Console_KillLine>> <Control-Key-k>
- <<Console_Transpose>> <Control-Key-t>
- <<Console_ClearLine>> <Control-Key-u>
- <<Console_SaveCommand>> <Control-Key-z>
- } {
- event add $ev $key
- bind Console $key {}
- }
- bind Console <<Console_Expand>> {
- if {[%W compare insert > promptEnd]} {::tk::console::Expand %W}
- }
- bind Console <<Console_ExpandFile>> {
- if {[%W compare insert > promptEnd]} {::tk::console::Expand %W path}
- }
- bind Console <<Console_ExpandProc>> {
- if {[%W compare insert > promptEnd]} {::tk::console::Expand %W proc}
- }
- bind Console <<Console_ExpandVar>> {
- if {[%W compare insert > promptEnd]} {::tk::console::Expand %W var}
- }
- bind Console <<Console_Eval>> {
- %W mark set insert {end - 1c}
- tk::ConsoleInsert %W "n"
- tk::ConsoleInvoke
- break
- }
- bind Console <Delete> {
- if {[%W tag nextrange sel 1.0 end] ne "" && [%W compare sel.first >= promptEnd]} {
- %W delete sel.first sel.last
- } elseif {[%W compare insert >= promptEnd]} {
- %W delete insert
- %W see insert
- }
- }
- bind Console <BackSpace> {
- if {[%W tag nextrange sel 1.0 end] ne "" && [%W compare sel.first >= promptEnd]} {
- %W delete sel.first sel.last
- } elseif {[%W compare insert != 1.0] &&
- [%W compare insert > promptEnd]} {
- %W delete insert-1c
- %W see insert
- }
- }
- bind Console <Control-h> [bind Console <BackSpace>]
- bind Console <Home> {
- if {[%W compare insert < promptEnd]} {
- tk::TextSetCursor %W {insert linestart}
- } else {
- tk::TextSetCursor %W promptEnd
- }
- }
- bind Console <Control-a> [bind Console <Home>]
- bind Console <End> {
- tk::TextSetCursor %W {insert lineend}
- }
- bind Console <Control-e> [bind Console <End>]
- bind Console <Control-d> {
- if {[%W compare insert < promptEnd]} break
- %W delete insert
- }
- bind Console <<Console_KillLine>> {
- if {[%W compare insert < promptEnd]} break
- if {[%W compare insert == {insert lineend}]} {
- %W delete insert
- } else {
- %W delete insert {insert lineend}
- }
- }
- bind Console <<Console_Clear>> {
- ## Clear console display
- %W delete 1.0 "promptEnd linestart"
- }
- bind Console <<Console_ClearLine>> {
- ## Clear command line (Unix shell staple)
- %W delete promptEnd end
- }
- bind Console <Meta-d> {
- if {[%W compare insert >= promptEnd]} {
- %W delete insert {insert wordend}
- }
- }
- bind Console <Meta-BackSpace> {
- if {[%W compare {insert -1c wordstart} >= promptEnd]} {
- %W delete {insert -1c wordstart} insert
- }
- }
- bind Console <Meta-d> {
- if {[%W compare insert >= promptEnd]} {
- %W delete insert {insert wordend}
- }
- }
- bind Console <Meta-BackSpace> {
- if {[%W compare {insert -1c wordstart} >= promptEnd]} {
- %W delete {insert -1c wordstart} insert
- }
- }
- bind Console <Meta-Delete> {
- if {[%W compare insert >= promptEnd]} {
- %W delete insert {insert wordend}
- }
- }
- bind Console <<Console_Prev>> {
- tk::ConsoleHistory prev
- }
- bind Console <<Console_Next>> {
- tk::ConsoleHistory next
- }
- bind Console <Insert> {
- catch {tk::ConsoleInsert %W [::tk::GetSelection %W PRIMARY]}
- }
- bind Console <KeyPress> {
- tk::ConsoleInsert %W %A
- }
- bind Console <F9> {
- eval destroy [winfo child .]
- if {$tcl_platform(platform) eq "macintosh"} {
- if {[catch {source [file join $tk_library console.tcl]}]} {source -rsrc console}
- } else {
- source [file join $tk_library console.tcl]
- }
- }
- if {$::tcl_platform(platform) eq "macintosh" || [tk windowingsystem] eq "aqua"} {
- bind Console <Command-q> {
- exit
- }
- }
- bind Console <<Cut>> {
- # Same as the copy event
- if {![catch {set data [%W get sel.first sel.last]}]} {
- clipboard clear -displayof %W
- clipboard append -displayof %W $data
- }
- }
- bind Console <<Copy>> {
- if {![catch {set data [%W get sel.first sel.last]}]} {
- clipboard clear -displayof %W
- clipboard append -displayof %W $data
- }
- }
- bind Console <<Paste>> {
- catch {
- set clip [::tk::GetSelection %W CLIPBOARD]
- set list [split $clip nr]
- tk::ConsoleInsert %W [lindex $list 0]
- foreach x [lrange $list 1 end] {
- %W mark set insert {end - 1c}
- tk::ConsoleInsert %W "n"
- tk::ConsoleInvoke
- tk::ConsoleInsert %W $x
- }
- }
- }
- ##
- ## Bindings for doing special things based on certain keys
- ##
- bind PostConsole <Key-parenright> {
- if {"\" ne [%W get insert-2c]} {
- ::tk::console::MatchPair %W ( ) promptEnd
- }
- }
- bind PostConsole <Key-bracketright> {
- if {"\" ne [%W get insert-2c]} {
- ::tk::console::MatchPair %W [ ] promptEnd
- }
- }
- bind PostConsole <Key-braceright> {
- if {"\" ne [%W get insert-2c]} {
- ::tk::console::MatchPair %W { } promptEnd
- }
- }
- bind PostConsole <Key-quotedbl> {
- if {"\" ne [%W get insert-2c]} {
- ::tk::console::MatchQuote %W promptEnd
- }
- }
- bind PostConsole <KeyPress> {
- if {"%A" ne ""} {
- ::tk::console::TagProc %W
- }
- break
- }
- }
- # ::tk::ConsoleInsert --
- # Insert a string into a text at the point of the insertion cursor.
- # If there is a selection in the text, and it covers the point of the
- # insertion cursor, then delete the selection before inserting. Insertion
- # is restricted to the prompt area.
- #
- # Arguments:
- # w - The text window in which to insert the string
- # s - The string to insert (usually just a single character)
- proc ::tk::ConsoleInsert {w s} {
- if {$s eq ""} {
- return
- }
- catch {
- if {[$w compare sel.first <= insert]
- && [$w compare sel.last >= insert]} {
- $w tag remove sel sel.first promptEnd
- $w delete sel.first sel.last
- }
- }
- if {[$w compare insert < promptEnd]} {
- $w mark set insert end
- }
- $w insert insert $s {input stdin}
- $w see insert
- }
- # ::tk::ConsoleOutput --
- #
- # This routine is called directly by ConsolePutsCmd to cause a string
- # to be displayed in the console.
- #
- # Arguments:
- # dest - The output tag to be used: either "stderr" or "stdout".
- # string - The string to be displayed.
- proc ::tk::ConsoleOutput {dest string} {
- set w .console
- $w insert output $string $dest
- ::tk::console::ConstrainBuffer $w $::tk::console::maxLines
- $w see insert
- }
- # ::tk::ConsoleExit --
- #
- # This routine is called by ConsoleEventProc when the main window of
- # the application is destroyed. Don't call exit - that probably already
- # happened. Just delete our window.
- #
- # Arguments:
- # None.
- proc ::tk::ConsoleExit {} {
- destroy .
- }
- # ::tk::ConsoleAbout --
- #
- # This routine displays an About box to show Tcl/Tk version info.
- #
- # Arguments:
- # None.
- proc ::tk::ConsoleAbout {} {
- tk_messageBox -type ok -message "[mc {Tcl for Windows}]
- Tcl $::tcl_patchLevel
- Tk $::tk_patchLevel"
- }
- # ::tk::console::TagProc --
- #
- # Tags a procedure in the console if it's recognized
- # This procedure is not perfect. However, making it perfect wastes
- # too much CPU time...
- #
- # Arguments:
- # w - console text widget
- proc ::tk::console::TagProc w {
- if {!$::tk::console::magicKeys} { return }
- set exp "[^\\][[ tnr;{}"$]"
- set i [$w search -backwards -regexp $exp insert-1c promptEnd-1c]
- if {$i eq ""} {set i promptEnd} else {append i +2c}
- regsub -all "[[\\\?\*]" [$w get $i "insert-1c wordend"] {\ } c
- if {[llength [EvalAttached [list info commands $c]]]} {
- $w tag add proc $i "insert-1c wordend"
- } else {
- $w tag remove proc $i "insert-1c wordend"
- }
- if {[llength [EvalAttached [list info vars $c]]]} {
- $w tag add var $i "insert-1c wordend"
- } else {
- $w tag remove var $i "insert-1c wordend"
- }
- }
- # ::tk::console::MatchPair --
- #
- # Blinks a matching pair of characters
- # c2 is assumed to be at the text index 'insert'.
- # This proc is really loopy and took me an hour to figure out given
- # all possible combinations with escaping except for escaped 's.
- # It doesn't take into account possible commenting... Oh well. If
- # anyone has something better, I'd like to see/use it. This is really
- # only efficient for small contexts.
- #
- # Arguments:
- # w - console text widget
- # c1 - first char of pair
- # c2 - second char of pair
- #
- # Calls: ::tk::console::Blink
-
- proc ::tk::console::MatchPair {w c1 c2 {lim 1.0}} {
- if {!$::tk::console::magicKeys} { return }
- if {[set ix [$w search -back $c1 insert $lim]] ne ""} {
- while {
- [string match {\} [$w get $ix-1c]] &&
- [set ix [$w search -back $c1 $ix-1c $lim]] ne ""
- } {}
- set i1 insert-1c
- while {$ix ne ""} {
- set i0 $ix
- set j 0
- while {[set i0 [$w search $c2 $i0 $i1]] ne ""} {
- append i0 +1c
- if {[string match {\} [$w get $i0-2c]]} continue
- incr j
- }
- if {!$j} break
- set i1 $ix
- while {$j && [set ix [$w search -back $c1 $ix $lim]] ne ""} {
- if {[string match {\} [$w get $ix-1c]]} continue
- incr j -1
- }
- }
- if {[string match {} $ix]} { set ix [$w index $lim] }
- } else { set ix [$w index $lim] }
- if {$::tk::console::blinkRange} {
- Blink $w $ix [$w index insert]
- } else {
- Blink $w $ix $ix+1c [$w index insert-1c] [$w index insert]
- }
- }
- # ::tk::console::MatchQuote --
- #
- # Blinks between matching quotes.
- # Blinks just the quote if it's unmatched, otherwise blinks quoted string
- # The quote to match is assumed to be at the text index 'insert'.
- #
- # Arguments:
- # w - console text widget
- #
- # Calls: ::tk::console::Blink
-
- proc ::tk::console::MatchQuote {w {lim 1.0}} {
- if {!$::tk::console::magicKeys} { return }
- set i insert-1c
- set j 0
- while {[set i [$w search -back " $i $lim]] ne ""} {
- if {[string match {\} [$w get $i-1c]]} continue
- if {!$j} {set i0 $i}
- incr j
- }
- if {$j&1} {
- if {$::tk::console::blinkRange} {
- Blink $w $i0 [$w index insert]
- } else {
- Blink $w $i0 $i0+1c [$w index insert-1c] [$w index insert]
- }
- } else {
- Blink $w [$w index insert-1c] [$w index insert]
- }
- }
- # ::tk::console::Blink --
- #
- # Blinks between n index pairs for a specified duration.
- #
- # Arguments:
- # w - console text widget
- # i1 - start index to blink region
- # i2 - end index of blink region
- # dur - duration in usecs to blink for
- #
- # Outputs:
- # blinks selected characters in $w
- proc ::tk::console::Blink {w args} {
- eval [list $w tag add blink] $args
- after $::tk::console::blinkTime [list $w] tag remove blink $args
- }
- # ::tk::console::ConstrainBuffer --
- #
- # This limits the amount of data in the text widget
- # Called by Prompt and ConsoleOutput
- #
- # Arguments:
- # w - console text widget
- # size - # of lines to constrain to
- #
- # Outputs:
- # may delete data in console widget
- proc ::tk::console::ConstrainBuffer {w size} {
- if {[$w index end] > $size} {
- $w delete 1.0 [expr {int([$w index end])-$size}].0
- }
- }
- # ::tk::console::Expand --
- #
- # Arguments:
- # ARGS: w - text widget in which to expand str
- # type - type of expansion (path / proc / variable)
- #
- # Calls: ::tk::console::Expand(Pathname|Procname|Variable)
- #
- # Outputs: The string to match is expanded to the longest possible match.
- # If ::tk::console::showMatches is non-zero and the longest match
- # equaled the string to expand, then all possible matches are
- # output to stdout. Triggers bell if no matches are found.
- #
- # Returns: number of matches found
- proc ::tk::console::Expand {w {type ""}} {
- set exp "[^\\][[ tnr\{"\\$]"
- set tmp [$w search -backwards -regexp $exp insert-1c promptEnd-1c]
- if {$tmp eq ""} {set tmp promptEnd} else {append tmp +2c}
- if {[$w compare $tmp >= insert]} { return }
- set str [$w get $tmp insert]
- switch -glob $type {
- path* { set res [ExpandPathname $str] }
- proc* { set res [ExpandProcname $str] }
- var* { set res [ExpandVariable $str] }
- default {
- set res {}
- foreach t {Pathname Procname Variable} {
- if {![catch {Expand$t $str} res] && ($res ne "")} { break }
- }
- }
- }
- set len [llength $res]
- if {$len} {
- set repl [lindex $res 0]
- $w delete $tmp insert
- $w insert $tmp $repl {input stdin}
- if {($len > 1) && $::tk::console::showMatches && $repl eq $str} {
- puts stdout [lsort [lreplace $res 0 0]]
- }
- } else { bell }
- return [incr len -1]
- }
- # ::tk::console::ExpandPathname --
- #
- # Expand a file pathname based on $str
- # This is based on UNIX file name conventions
- #
- # Arguments:
- # str - partial file pathname to expand
- #
- # Calls: ::tk::console::ExpandBestMatch
- #
- # Returns: list containing longest unique match followed by all the
- # possible further matches
-
- proc ::tk::console::ExpandPathname str {
- set pwd [EvalAttached pwd]
- if {[catch {EvalAttached [list cd [file dirname $str]]} err]} {
- return -code error $err
- }
- set dir [file tail $str]
- ## Check to see if it was known to be a directory and keep the trailing
- ## slash if so (file tail cuts it off)
- if {[string match */ $str]} { append dir / }
- if {[catch {lsort [EvalAttached [list glob $dir*]]} m]} {
- set match {}
- } else {
- if {[llength $m] > 1} {
- global tcl_platform
- if {[string match windows $tcl_platform(platform)]} {
- ## Windows is screwy because it's case insensitive
- set tmp [ExpandBestMatch [string tolower $m]
- [string tolower $dir]]
- ## Don't change case if we haven't changed the word
- if {[string length $dir]==[string length $tmp]} {
- set tmp $dir
- }
- } else {
- set tmp [ExpandBestMatch $m $dir]
- }
- if {[string match ?*/* $str]} {
- set tmp [file dirname $str]/$tmp
- } elseif {[string match /* $str]} {
- set tmp /$tmp
- }
- regsub -all { } $tmp {\ } tmp
- set match [linsert $m 0 $tmp]
- } else {
- ## This may look goofy, but it handles spaces in path names
- eval append match $m
- if {[file isdir $match]} {append match /}
- if {[string match ?*/* $str]} {
- set match [file dirname $str]/$match
- } elseif {[string match /* $str]} {
- set match /$match
- }
- regsub -all { } $match {\ } match
- ## Why is this one needed and the ones below aren't!!
- set match [list $match]
- }
- }
- EvalAttached [list cd $pwd]
- return $match
- }
- # ::tk::console::ExpandProcname --
- #
- # Expand a tcl proc name based on $str
- #
- # Arguments:
- # str - partial proc name to expand
- #
- # Calls: ::tk::console::ExpandBestMatch
- #
- # Returns: list containing longest unique match followed by all the
- # possible further matches
- proc ::tk::console::ExpandProcname str {
- set match [EvalAttached [list info commands $str*]]
- if {[llength $match] == 0} {
- set ns [EvalAttached
- "namespace children [namespace current] [list $str*]"]
- if {[llength $ns]==1} {
- set match [EvalAttached [list info commands ${ns}::*]]
- } else {
- set match $ns
- }
- }
- if {[llength $match] > 1} {
- regsub -all { } [ExpandBestMatch $match $str] {\ } str
- set match [linsert $match 0 $str]
- } else {
- regsub -all { } $match {\ } match
- }
- return $match
- }
- # ::tk::console::ExpandVariable --
- #
- # Expand a tcl variable name based on $str
- #
- # Arguments:
- # str - partial tcl var name to expand
- #
- # Calls: ::tk::console::ExpandBestMatch
- #
- # Returns: list containing longest unique match followed by all the
- # possible further matches
- proc ::tk::console::ExpandVariable str {
- if {[regexp {([^(]*)((.*)} $str junk ary str]} {
- ## Looks like they're trying to expand an array.
- set match [EvalAttached [list array names $ary $str*]]
- if {[llength $match] > 1} {
- set vars $ary([ExpandBestMatch $match $str]
- foreach var $match {lappend vars $ary($var)}
- return $vars
- } elseif {[llength $match] == 1} {
- set match $ary($match)
- }
- ## Space transformation avoided for array names.
- } else {
- set match [EvalAttached [list info vars $str*]]
- if {[llength $match] > 1} {
- regsub -all { } [ExpandBestMatch $match $str] {\ } str
- set match [linsert $match 0 $str]
- } else {
- regsub -all { } $match {\ } match
- }
- }
- return $match
- }
- # ::tk::console::ExpandBestMatch --
- #
- # Finds the best unique match in a list of names.
- # The extra $e in this argument allows us to limit the innermost loop a little
- # further. This improves speed as $l becomes large or $e becomes long.
- #
- # Arguments:
- # l - list to find best unique match in
- # e - currently best known unique match
- #
- # Returns: longest unique match in the list
- proc ::tk::console::ExpandBestMatch {l {e {}}} {
- set ec [lindex $l 0]
- if {[llength $l]>1} {
- set e [string length $e]; incr e -1
- set ei [string length $ec]; incr ei -1
- foreach l $l {
- while {$ei>=$e && [string first $ec $l]} {
- set ec [string range $ec 0 [incr ei -1]]
- }
- }
- }
- return $ec
- }
- # now initialize the console
- ::tk::ConsoleInit