FM / tcl8.5

/usr/share/tcl8.5

Name	Size	Mode	Actions
encoding/	-	0755	rm
http1.0/	-	0755	rm
msgs/	-	0755	rm
opt0.4/	-	0755	rm
auto.tcl	20577	0644	edit dl rm
clock.tcl	129481	0644	edit dl rm
history.tcl	9032	0644	edit dl rm
init.tcl	24850	0644	edit dl rm
package.tcl	23643	0644	edit dl rm
parray.tcl	869	0644	edit dl rm
safe.tcl	30552	0644	edit dl rm
tclDTrace.d	6706	0644	edit dl rm
tclIndex	6379	0644	edit dl rm
tm.tcl	11432	0644	edit dl rm
word.tcl	4724	0644	edit dl rm

Edit: /usr/share/tcl8.5/package.tcl (23643B)

# package.tcl --
#
# utility procs formerly in init.tcl which can be loaded on demand
# for package management.
#
# RCS: @(#) $Id: package.tcl,v 1.35.4.1 2008/07/03 17:22:59 dgp Exp $
#
# Copyright (c) 1991-1993 The Regents of the University of California.
# Copyright (c) 1994-1998 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#

namespace eval tcl::Pkg {}

# ::tcl::Pkg::CompareExtension --
#
#  Used internally by pkg_mkIndex to compare the extension of a file to
#  a given extension. On Windows, it uses a case-insensitive comparison
#  because the file system can be file insensitive.
#
# Arguments:
#  fileName	name of a file whose extension is compared
#  ext		(optional) The extension to compare against; you must
#		provide the starting dot.
#		Defaults to [info sharedlibextension]
#
# Results:
#  Returns 1 if the extension matches, 0 otherwise

proc tcl::Pkg::CompareExtension { fileName {ext {}} } {
    global tcl_platform
    if {$ext eq ""} {set ext [info sharedlibextension]}
    if {$tcl_platform(platform) eq "windows"} {
        return [string equal -nocase [file extension $fileName] $ext]
    } else {
        # Some unices add trailing numbers after the .so, so
        # we could have something like '.so.1.2'.
        set root $fileName
        while {1} {
            set currExt [file extension $root]
            if {$currExt eq $ext} {
                return 1
            }

# The current extension does not match; if it is not a numeric
	    # value, quit, as we are only looking to ignore version number
	    # extensions.  Otherwise we might return 1 in this case:
	    #		tcl::Pkg::CompareExtension foo.so.bar .so
	    # which should not match.

if { ![string is integer -strict [string range $currExt 1 end]] } {
		return 0
	    }
            set root [file rootname $root]
	}
    }
}

# pkg_mkIndex --
# This procedure creates a package index in a given directory.  The
# package index consists of a "pkgIndex.tcl" file whose contents are
# a Tcl script that sets up package information with "package require"
# commands.  The commands describe all of the packages defined by the
# files given as arguments.
#
# Arguments:
# -direct		(optional) If this flag is present, the generated
#			code in pkgMkIndex.tcl will cause the package to be
#			loaded when "package require" is executed, rather
#			than lazily when the first reference to an exported
#			procedure in the package is made.
# -verbose		(optional) Verbose output; the name of each file that
#			was successfully rocessed is printed out. Additionally,
#			if processing of a file failed a message is printed.
# -load pat		(optional) Preload any packages whose names match
#			the pattern.  Used to handle DLLs that depend on
#			other packages during their Init procedure.
# dir -			Name of the directory in which to create the index.
# args -		Any number of additional arguments, each giving
#			a glob pattern that matches the names of one or
#			more shared libraries or Tcl script files in
#			dir.

proc pkg_mkIndex {args} {
    set usage {"pkg_mkIndex ?-direct? ?-lazy? ?-load pattern? ?-verbose? ?--? dir ?pattern ...?"};

set argCount [llength $args]
    if {$argCount < 1} {
	return -code error "wrong # args: should be\n$usage"
    }

set more ""
    set direct 1
    set doVerbose 0
    set loadPat ""
    for {set idx 0} {$idx < $argCount} {incr idx} {
	set flag [lindex $args $idx]
	switch -glob -- $flag {
	    -- {
		# done with the flags
		incr idx
		break
	    }
	    -verbose {
		set doVerbose 1
	    }
	    -lazy {
		set direct 0
		append more " -lazy"
	    }
	    -direct {
		append more " -direct"
	    }
	    -load {
		incr idx
		set loadPat [lindex $args $idx]
		append more " -load $loadPat"
	    }
	    -* {
		return -code error "unknown flag $flag: should be\n$usage"
	    }
	    default {
		# done with the flags
		break
	    }
	}
    }

set dir [lindex $args $idx]
    set patternList [lrange $args [expr {$idx + 1}] end]
    if {[llength $patternList] == 0} {
	set patternList [list "*.tcl" "*[info sharedlibextension]"]
    }

if {[catch {
	    glob -directory $dir -tails -types {r f} -- {*}$patternList
    } fileList o]} {
	return -options $o $fileList
    }
    foreach file $fileList {
	# For each file, figure out what commands and packages it provides.
	# To do this, create a child interpreter, load the file into the
	# interpreter, and get a list of the new commands and packages
	# that are defined.

if {$file eq "pkgIndex.tcl"} {
	    continue
	}

set c [interp create]

# Load into the child any packages currently loaded in the parent
	# interpreter that match the -load pattern.

if {$loadPat ne ""} {
	    if {$doVerbose} {
		tclLog "currently loaded packages: '[info loaded]'"
		tclLog "trying to load all packages matching $loadPat"
	    }
	    if {![llength [info loaded]]} {
		tclLog "warning: no packages are currently loaded, nothing"
		tclLog "can possibly match '$loadPat'"
	    }
	}
	foreach pkg [info loaded] {
	    if {! [string match -nocase $loadPat [lindex $pkg 1]]} {
		continue
	    }
	    if {$doVerbose} {
		tclLog "package [lindex $pkg 1] matches '$loadPat'"
	    }
	    if {[catch {
		load [lindex $pkg 0] [lindex $pkg 1] $c
	    } err]} {
		if {$doVerbose} {
		    tclLog "warning: load [lindex $pkg 0] [lindex $pkg 1]\nfailed with: $err"
		}
	    } elseif {$doVerbose} {
		tclLog "loaded [lindex $pkg 0] [lindex $pkg 1]"
	    }
	    if {[lindex $pkg 1] eq "Tk"} {
		# Withdraw . if Tk was loaded, to avoid showing a window.
		$c eval [list wm withdraw .]
	    }
	}

$c eval {
	    # Stub out the package command so packages can
	    # require other packages.

rename package __package_orig
	    proc package {what args} {
		switch -- $what {
		    require { return ; # ignore transitive requires }
		    default { __package_orig $what {*}$args }
		}
	    }
	    proc tclPkgUnknown args {}
	    package unknown tclPkgUnknown

# Stub out the unknown command so package can call
	    # into each other during their initialilzation.

proc unknown {args} {}

# Stub out the auto_import mechanism

proc auto_import {args} {}

# reserve the ::tcl namespace for support procs
	    # and temporary variables.  This might make it awkward
	    # to generate a pkgIndex.tcl file for the ::tcl namespace.

namespace eval ::tcl {
		variable dir		;# Current directory being processed
		variable file		;# Current file being processed
		variable direct		;# -direct flag value
		variable x		;# Loop variable
		variable debug		;# For debugging
		variable type		;# "load" or "source", for -direct
		variable namespaces	;# Existing namespaces (e.g., ::tcl)
		variable packages	;# Existing packages (e.g., Tcl)
		variable origCmds	;# Existing commands
		variable newCmds	;# Newly created commands
		variable newPkgs {}	;# Newly created packages
	    }
	}

$c eval [list set ::tcl::dir $dir]
	$c eval [list set ::tcl::file $file]
	$c eval [list set ::tcl::direct $direct]

# Download needed procedures into the slave because we've
	# just deleted the unknown procedure.  This doesn't handle
	# procedures with default arguments.

foreach p {::tcl::Pkg::CompareExtension} {
	    $c eval [list namespace eval [namespace qualifiers $p] {}]
	    $c eval [list proc $p [info args $p] [info body $p]]
	}

if {[catch {
	    $c eval {
		set ::tcl::debug "loading or sourcing"

# we need to track command defined by each package even in
		# the -direct case, because they are needed internally by
		# the "partial pkgIndex.tcl" step above.

proc ::tcl::GetAllNamespaces {{root ::}} {
		    set list $root
		    foreach ns [namespace children $root] {
			lappend list {*}[::tcl::GetAllNamespaces $ns]
		    }
		    return $list
		}

# init the list of existing namespaces, packages, commands

foreach ::tcl::x [::tcl::GetAllNamespaces] {
		    set ::tcl::namespaces($::tcl::x) 1
		}
		foreach ::tcl::x [package names] {
		    if {[package provide $::tcl::x] ne ""} {
			set ::tcl::packages($::tcl::x) 1
		    }
		}
		set ::tcl::origCmds [info commands]

# Try to load the file if it has the shared library
		# extension, otherwise source it.  It's important not to
		# try to load files that aren't shared libraries, because
		# on some systems (like SunOS) the loader will abort the
		# whole application when it gets an error.

if {[::tcl::Pkg::CompareExtension $::tcl::file [info sharedlibextension]]} {
		    # The "file join ." command below is necessary.
		    # Without it, if the file name has no \'s and we're
		    # on UNIX, the load command will invoke the
		    # LD_LIBRARY_PATH search mechanism, which could cause
		    # the wrong file to be used.

set ::tcl::debug loading
		    load [file join $::tcl::dir $::tcl::file]
		    set ::tcl::type load
		} else {
		    set ::tcl::debug sourcing
		    source [file join $::tcl::dir $::tcl::file]
		    set ::tcl::type source
		}

# As a performance optimization, if we are creating 
		# direct load packages, don't bother figuring out the 
		# set of commands created by the new packages.  We 
		# only need that list for setting up the autoloading 
		# used in the non-direct case.
		if { !$::tcl::direct } {
		    # See what new namespaces appeared, and import commands
		    # from them.  Only exported commands go into the index.
		    
		    foreach ::tcl::x [::tcl::GetAllNamespaces] {
			if {! [info exists ::tcl::namespaces($::tcl::x)]} {
			    namespace import -force ${::tcl::x}::*
			}

# Figure out what commands appeared
			
			foreach ::tcl::x [info commands] {
			    set ::tcl::newCmds($::tcl::x) 1
			}
			foreach ::tcl::x $::tcl::origCmds {
			    unset -nocomplain ::tcl::newCmds($::tcl::x)
			}
			foreach ::tcl::x [array names ::tcl::newCmds] {
			    # determine which namespace a command comes from
			    
			    set ::tcl::abs [namespace origin $::tcl::x]
			    
			    # special case so that global names have no leading
			    # ::, this is required by the unknown command
			    
			    set ::tcl::abs \
				    [lindex [auto_qualify $::tcl::abs ::] 0]
			    
			    if {$::tcl::x ne $::tcl::abs} {
				# Name changed during qualification
				
				set ::tcl::newCmds($::tcl::abs) 1
				unset ::tcl::newCmds($::tcl::x)
			    }
			}
		    }
		}

# Look through the packages that appeared, and if there is
		# a version provided, then record it

foreach ::tcl::x [package names] {
		    if {[package provide $::tcl::x] ne ""
			    && ![info exists ::tcl::packages($::tcl::x)]} {
			lappend ::tcl::newPkgs \
			    [list $::tcl::x [package provide $::tcl::x]]
		    }
		}
	    }
	} msg] == 1} {
	    set what [$c eval set ::tcl::debug]
	    if {$doVerbose} {
		tclLog "warning: error while $what $file: $msg"
	    }
	} else {
	    set what [$c eval set ::tcl::debug]
	    if {$doVerbose} {
		tclLog "successful $what of $file"
	    }
	    set type [$c eval set ::tcl::type]
	    set cmds [lsort [$c eval array names ::tcl::newCmds]]
	    set pkgs [$c eval set ::tcl::newPkgs]
	    if {$doVerbose} {
		if { !$direct } {
		    tclLog "commands provided were $cmds"
		}
		tclLog "packages provided were $pkgs"
	    }
	    if {[llength $pkgs] > 1} {
		tclLog "warning: \"$file\" provides more than one package ($pkgs)"
	    }
	    foreach pkg $pkgs {
		# cmds is empty/not used in the direct case
		lappend files($pkg) [list $file $type $cmds]
	    }

if {$doVerbose} {
		tclLog "processed $file"
	    }
	}
	interp delete $c
    }

append index "# Tcl package index file, version 1.1\n"
    append index "# This file is generated by the \"pkg_mkIndex$more\" command\n"
    append index "# and sourced either when an application starts up or\n"
    append index "# by a \"package unknown\" script.  It invokes the\n"
    append index "# \"package ifneeded\" command to set up package-related\n"
    append index "# information so that packages will be loaded automatically\n"
    append index "# in response to \"package require\" commands.  When this\n"
    append index "# script is sourced, the variable \$dir must contain the\n"
    append index "# full path name of this file's directory.\n"

foreach pkg [lsort [array names files]] {
	set cmd {}
	foreach {name version} $pkg {
	    break
	}
	lappend cmd ::tcl::Pkg::Create -name $name -version $version
	foreach spec $files($pkg) {
	    foreach {file type procs} $spec {
		if { $direct } {
		    set procs {}
		}
		lappend cmd "-$type" [list $file $procs]
	    }
	}
	append index "\n[eval $cmd]"
    }

set f [open [file join $dir pkgIndex.tcl] w]
    puts $f $index
    close $f
}

# tclPkgSetup --
# This is a utility procedure use by pkgIndex.tcl files.  It is invoked
# as part of a "package ifneeded" script.  It calls "package provide"
# to indicate that a package is available, then sets entries in the
# auto_index array so that the package's files will be auto-loaded when
# the commands are used.
#
# Arguments:
# dir -			Directory containing all the files for this package.
# pkg -			Name of the package (no version number).
# version -		Version number for the package, such as 2.1.3.
# files -		List of files that constitute the package.  Each
#			element is a sub-list with three elements.  The first
#			is the name of a file relative to $dir, the second is
#			"load" or "source", indicating whether the file is a
#			loadable binary or a script to source, and the third
#			is a list of commands defined by this file.

proc tclPkgSetup {dir pkg version files} {
    global auto_index

package provide $pkg $version
    foreach fileInfo $files {
	set f [lindex $fileInfo 0]
	set type [lindex $fileInfo 1]
	foreach cmd [lindex $fileInfo 2] {
	    if {$type eq "load"} {
		set auto_index($cmd) [list load [file join $dir $f] $pkg]
	    } else {
		set auto_index($cmd) [list source [file join $dir $f]]
	    } 
	}
    }
}

# tclPkgUnknown --
# This procedure provides the default for the "package unknown" function.
# It is invoked when a package that's needed can't be found.  It scans
# the auto_path directories and their immediate children looking for
# pkgIndex.tcl files and sources any such files that are found to setup
# the package database. As it searches, it will recognize changes
# to the auto_path and scan any new directories.
#
# Arguments:
# name -		Name of desired package.  Not used.
# version -		Version of desired package.  Not used.
# exact -		Either "-exact" or omitted.  Not used.

proc tclPkgUnknown {name args} {
    global auto_path env

if {![info exists auto_path]} {
	return
    }
    # Cache the auto_path, because it may change while we run through
    # the first set of pkgIndex.tcl files
    set old_path [set use_path $auto_path]
    while {[llength $use_path]} {
	set dir [lindex $use_path end]
	
	# Make sure we only scan each directory one time.
	if {[info exists tclSeenPath($dir)]} {
	    set use_path [lrange $use_path 0 end-1]
	    continue
	}
	set tclSeenPath($dir) 1

# we can't use glob in safe interps, so enclose the following
	# in a catch statement, where we get the pkgIndex files out
	# of the subdirectories
	catch {
	    foreach file [glob -directory $dir -join -nocomplain \
		    * pkgIndex.tcl] {
		set dir [file dirname $file]
		if {![info exists procdDirs($dir)]} {
		    set code [catch {source $file} msg opt]
		    if {$code == 1 &&
			    [lindex [dict get $opt -errorcode] 0] eq "POSIX" &&
			    [lindex [dict get $opt -errorcode] 1] eq "EACCES"} {
			# $file was not readable; silently ignore
			continue
		    }
		    if {$code} {
			tclLog "error reading package index file $file: $msg"
		    } else {
			set procdDirs($dir) 1
		    }
		}
	    }
	}
	set dir [lindex $use_path end]
	if {![info exists procdDirs($dir)]} {
	    set file [file join $dir pkgIndex.tcl]
	    # safe interps usually don't have "file exists", 
	    if {([interp issafe] || [file exists $file])} {
		set code [catch {source $file} msg opt]
		if {$code == 1 &&
			[lindex [dict get $opt -errorcode] 0] eq "POSIX" &&
			[lindex [dict get $opt -errorcode] 1] eq "EACCES"} {
		    # $file was not readable; silently ignore
		    continue
		}
		if {$code}  {
		    tclLog "error reading package index file $file: $msg"
		} else {
		    set procdDirs($dir) 1
		}
	    }
	}

set use_path [lrange $use_path 0 end-1]

# Check whether any of the index scripts we [source]d above
	# set a new value for $::auto_path.  If so, then find any
	# new directories on the $::auto_path, and lappend them to
	# the $use_path we are working from.  This gives index scripts
	# the (arguably unwise) power to expand the index script search
	# path while the search is in progress.
	set index 0
	if {[llength $old_path] == [llength $auto_path]} {
	    foreach dir $auto_path old $old_path {
		if {$dir ne $old} {
		    # This entry in $::auto_path has changed.
		    break
		}
		incr index
	    }
	}

# $index now points to the first element of $auto_path that
	# has changed, or the beginning if $auto_path has changed length
	# Scan the new elements of $auto_path for directories to add to
	# $use_path.  Don't add directories we've already seen, or ones
	# already on the $use_path.
	foreach dir [lrange $auto_path $index end] {
	    if {![info exists tclSeenPath($dir)] 
		    && ([lsearch -exact $use_path $dir] == -1) } {
		lappend use_path $dir
	    }
	}
	set old_path $auto_path
    }
}

# tcl::MacOSXPkgUnknown --
# This procedure extends the "package unknown" function for MacOSX.
# It scans the Resources/Scripts directories of the immediate children
# of the auto_path directories for pkgIndex files.
#
# Arguments:
# original -		original [package unknown] procedure
# name -		Name of desired package.  Not used.
# version -		Version of desired package.  Not used.
# exact -		Either "-exact" or omitted.  Not used.

proc tcl::MacOSXPkgUnknown {original name args} {

#  First do the cross-platform default search
    uplevel 1 $original [linsert $args 0 $name]

# Now do MacOSX specific searching
    global auto_path

# Make sure we only scan each directory one time.
	if {[info exists tclSeenPath($dir)]} {
	    set use_path [lrange $use_path 0 end-1]
	    continue
	}
	set tclSeenPath($dir) 1

# get the pkgIndex files out of the subdirectories
	foreach file [glob -directory $dir -join -nocomplain \
		* Resources Scripts pkgIndex.tcl] {
	    set dir [file dirname $file]
	    if {![info exists procdDirs($dir)]} {
		set code [catch {source $file} msg opt]
		if {$code == 1 &&
			[lindex [dict get $opt -errorcode] 0] eq "POSIX" &&
			[lindex [dict get $opt -errorcode] 1] eq "EACCES"} {
		    # $file was not readable; silently ignore
		    continue
		}
		if {$code} {
		    tclLog "error reading package index file $file: $msg"
		} else {
		    set procdDirs($dir) 1
		}
	    }
	}
	set use_path [lrange $use_path 0 end-1]

# ::tcl::Pkg::Create --
#
#	Given a package specification generate a "package ifneeded" statement
#	for the package, suitable for inclusion in a pkgIndex.tcl file.
#
# Arguments:
#	args		arguments used by the Create function:
#			-name		packageName
#			-version	packageVersion
#			-load		{filename ?{procs}?}
#			...
#			-source		{filename ?{procs}?}
#			...
#
#			Any number of -load and -source parameters may be
#			specified, so long as there is at least one -load or
#			-source parameter.  If the procs component of a 
#			module specifier is left off, that module will be
#			set up for direct loading; otherwise, it will be
#			set up for lazy loading.  If both -source and -load
#			are specified, the -load'ed files will be loaded 
#			first, followed by the -source'd files.
#
# Results:
#	An appropriate "package ifneeded" statement for the package.

proc ::tcl::Pkg::Create {args} {
    append err(usage) "[lindex [info level 0] 0] "
    append err(usage) "-name packageName -version packageVersion"
    append err(usage) "?-load {filename ?{procs}?}? ... "
    append err(usage) "?-source {filename ?{procs}?}? ..."

set err(wrongNumArgs) "wrong # args: should be \"$err(usage)\""
    set err(valueMissing) "value for \"%s\" missing: should be \"$err(usage)\""
    set err(unknownOpt)   "unknown option \"%s\": should be \"$err(usage)\""
    set err(noLoadOrSource) "at least one of -load and -source must be given"

# process arguments
    set len [llength $args]
    if { $len < 6 } {
	error $err(wrongNumArgs)
    }
    
    # Initialize parameters
    set opts(-name)		{}
    set opts(-version)		{}
    set opts(-source)		{}
    set opts(-load)		{}

# process parameters
    for {set i 0} {$i < $len} {incr i} {
	set flag [lindex $args $i]
	incr i
	switch -glob -- $flag {
	    "-name"		-
	    "-version"		{
		if { $i >= $len } {
		    error [format $err(valueMissing) $flag]
		}
		set opts($flag) [lindex $args $i]
	    }
	    "-source"		-
	    "-load"		{
		if { $i >= $len } {
		    error [format $err(valueMissing) $flag]
		}
		lappend opts($flag) [lindex $args $i]
	    }
	    default {
		error [format $err(unknownOpt) [lindex $args $i]]
	    }
	}
    }

# Validate the parameters
    if { [llength $opts(-name)] == 0 } {
	error [format $err(valueMissing) "-name"]
    }
    if { [llength $opts(-version)] == 0 } {
	error [format $err(valueMissing) "-version"]
    }
    
    if { [llength $opts(-source)] == 0 && [llength $opts(-load)] == 0 } {
	error $err(noLoadOrSource)
    }

# OK, now everything is good.  Generate the package ifneeded statment.
    set cmdline "package ifneeded $opts(-name) $opts(-version) "
    
    set cmdList {}
    set lazyFileList {}

# Handle -load and -source specs
    foreach key {load source} {
	foreach filespec $opts(-$key) {
	    foreach {filename proclist} {{} {}} {
		break
	    }
	    foreach {filename proclist} $filespec {
		break
	    }
	    
	    if { [llength $proclist] == 0 } {
		set cmd "\[list $key \[file join \$dir [list $filename]\]\]"
		lappend cmdList $cmd
	    } else {
		lappend lazyFileList [list $filename $key $proclist]
	    }
	}
    }

if { [llength $lazyFileList] > 0 } {
	lappend cmdList "\[list tclPkgSetup \$dir $opts(-name)\
		$opts(-version) [list $lazyFileList]\]"
    }
    append cmdline [join $cmdList "\\n"]
    return $cmdline
}

interp alias {} ::pkg::create {} ::tcl::Pkg::Create

cmd: