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# 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.
#
# 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 {[tk windowingsystem] eq "aqua"} {
set mod "Cmd"
} else {
set mod "Ctrl"
}
if {[catch {menu .menubar} err]} {
bgerror "INIT: $err"
}
AmpMenuArgs .menubar add cascade -label [mc &File] -menu .menubar.file
AmpMenuArgs .menubar add cascade -label [mc &Edit] -menu .menubar.edit
menu .menubar.file -tearoff 0
AmpMenuArgs .menubar.file add command -label [mc "&Source..."] \
-command {tk::ConsoleSource}
AmpMenuArgs .menubar.file add command -label [mc "&Hide Console"] \
-command {wm withdraw .}
AmpMenuArgs .menubar.file add command -label [mc "&Clear Console"] \
-command {.console delete 1.0 "promptEnd linestart"}
if {[tk windowingsystem] ne "aqua"} {
AmpMenuArgs .menubar.file add command -label [mc E&xit] -command {exit}
}
menu .menubar.edit -tearoff 0
AmpMenuArgs .menubar.edit add command -label [mc Cu&t] -accel "$mod+X"\
-command {event generate .console <<Cut>>}
AmpMenuArgs .menubar.edit add command -label [mc &Copy] -accel "$mod+C"\
-command {event generate .console <<Copy>>}
AmpMenuArgs .menubar.edit add command -label [mc P&aste] -accel "$mod+V"\
-command {event generate .console <<Paste>>}
if {$tcl_platform(platform) ne "windows"} {
AmpMenuArgs .menubar.edit add command -label [mc Cl&ear] \
-command {event generate .console <<Clear>>}
} else {
AmpMenuArgs .menubar.edit add command -label [mc &Delete] \
-command {event generate .console <<Clear>>} -accel "Del"
AmpMenuArgs .menubar add cascade -label [mc &Help] -menu .menubar.help
menu .menubar.help -tearoff 0
AmpMenuArgs .menubar.help add command -label [mc &About...] \
-command tk::ConsoleAbout
}
AmpMenuArgs .menubar.edit add separator
AmpMenuArgs .menubar.edit add command -label [mc "&Increase Font Size"] \
-accel "$mod++" -command {event generate .console <<Console_FontSizeIncr>>}
AmpMenuArgs .menubar.edit add command -label [mc "&Decrease Font Size"] \
-accel "$mod+-" -command {event generate .console <<Console_FontSizeDecr>>}
. configure -menu .menubar
# See if we can find a better font than the TkFixedFont
catch {font create TkConsoleFont {*}[font configure TkFixedFont]}
set families [font families]
switch -exact -- [tk windowingsystem] {
aqua { set preferred {Monaco 10} }
win32 { set preferred {ProFontWindows 8 Consolas 8} }
default { set preferred {} }
}
foreach {family size} $preferred {
if {[lsearch -exact $families $family] != -1} {
font configure TkConsoleFont -family $family -size $size
break
}
}
# Provide the right border for the text widget (platform dependent).
::ttk::style layout ConsoleFrame {
Entry.field -sticky news -border 1 -children {
ConsoleFrame.padding -sticky news
}
}
::ttk::frame .consoleframe -style ConsoleFrame
set con [text .console -yscrollcommand [list .sb set] -setgrid true \
-borderwidth 0 -highlightthickness 0 -font TkConsoleFont]
if {[tk windowingsystem] eq "aqua"} {
scrollbar .sb -command [list $con yview]
} else {
::ttk::scrollbar .sb -command [list $con yview]
}
pack .sb -in .consoleframe -fill both -side right -padx 1 -pady 1
pack $con -in .consoleframe -fill both -expand 1 -side left -padx 1 -pady 1
pack .consoleframe -fill both -expand 1 -side left
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
# Avoid listing this console in [winfo interps]
if {[info command ::send] eq "::send"} {rename ::send {}}
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 $cmd} result]} {
ConsoleOutput stderr "$result\n"
}
}
}
# ::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
$w see end
}
# Copy selected text from the console
proc ::tk::console::Copy {w} {
if {![catch {set data [$w get sel.first sel.last]}]} {
clipboard clear -displayof $w
clipboard append -displayof $w $data
}
}
# Copies selected text. If the selection is within the current active edit
# region then it will be cut, if not it is only copied.
proc ::tk::console::Cut {w} {
if {![catch {set data [$w get sel.first sel.last]}]} {
clipboard clear -displayof $w
clipboard append -displayof $w $data
if {[$w compare sel.first >= output]} {
$w delete sel.first sel.last
}
}
}
# Paste text from the clipboard
proc ::tk::console::Paste {w} {
catch {
set clip [::tk::GetSelection $w CLIPBOARD]
set list [split $clip \n\r]
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
}
}
}
# ::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
# <Keypress> class binding will also fire and insert the character
# which is wrong.
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>
<<Console_FontSizeIncr>> <Control-Key-plus>
<<Console_FontSizeDecr>> <Control-Key-minus>
} {
event add $ev $key
bind Console $key {}
}
if {[tk windowingsystem] eq "aqua"} {
foreach {ev key} {
<<Console_FontSizeIncr>> <Command-Key-plus>
<<Console_FontSizeDecr>> <Command-Key-minus>
} {
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 {{} ne [%W tag nextrange sel 1.0 end] \
&& [%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 {{} ne [%W tag nextrange sel 1.0 end] \
&& [%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 .]
source [file join $tk_library console.tcl]
}
if {[tk windowingsystem] eq "aqua"} {
bind Console <Command-q> {
exit
}
}
bind Console <<Cut>> { ::tk::console::Cut %W }
bind Console <<Copy>> { ::tk::console::Copy %W }
bind Console <<Paste>> { ::tk::console::Paste %W }
bind Console <<Console_FontSizeIncr>> {
set size [font configure TkConsoleFont -size]
font configure TkConsoleFont -size [incr size]
}
bind Console <<Console_FontSizeDecr>> {
set size [font configure TkConsoleFont -size]
font configure TkConsoleFont -size [incr size -1]
}
##
## 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
}
}
}
# ::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 "\[^\\\\\]\[\[ \t\n\r\;{}\"\$\]"
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"] {\\\0} 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 {{} ne [set ix [$w search -back $c1 insert $lim]]} {
while {
[string match {\\} [$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 "\[^\\\\\]\[\[ \t\n\r\\\{\"\\\\\$\]"
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 -> 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 [expr {[string length $e] - 1}]
set ei [expr {[string length $ec] - 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
| .. | |||||
| demos | |||||
| images | |||||
| msgs | |||||
| ttk | |||||
| bgerror.tcl | |||||
| button.tcl | |||||
| choosedir.tcl | |||||
| clrpick.tcl | |||||
| comdlg.tcl | |||||
| console.tcl | |||||
| dialog.tcl | |||||
| entry.tcl | |||||
| focus.tcl | |||||
| listbox.tcl | |||||
| menu.tcl | |||||
| mkpsenc.tcl | |||||
| msgbox.tcl | |||||
| obsolete.tcl | |||||
| optMenu.tcl | |||||
| palette.tcl | |||||
| panedwindow.tcl | |||||
| safetk.tcl | |||||
| scale.tcl | |||||
| scrlbar.tcl | |||||
| spinbox.tcl | |||||
| tclIndex | |||||
| tearoff.tcl | |||||
| text.tcl | |||||
| tk.tcl | |||||
| tkfbox.tcl | |||||
| unsupported.tcl | |||||
| xmfbox.tcl |