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Diffstat (limited to 'library/auto.tcl')
| -rw-r--r-- | library/auto.tcl | 553 |
1 files changed, 0 insertions, 553 deletions
diff --git a/library/auto.tcl b/library/auto.tcl deleted file mode 100644 index 7e43aaf..0000000 --- a/library/auto.tcl +++ /dev/null @@ -1,553 +0,0 @@ -# auto.tcl -- -# -# utility procs formerly in init.tcl dealing with auto execution -# of commands and can be auto loaded themselves. -# -# RCS: @(#) $Id: auto.tcl,v 1.2 1999/04/16 00:46:56 stanton 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. -# - -# auto_reset -- -# -# Destroy all cached information for auto-loading and auto-execution, -# so that the information gets recomputed the next time it's needed. -# Also delete any procedures that are listed in the auto-load index -# except those defined in this file. -# -# Arguments: -# None. - -proc auto_reset {} { - global auto_execs auto_index auto_oldpath - foreach p [info procs] { - if {[info exists auto_index($p)] && ![string match auto_* $p] - && ([lsearch -exact {unknown pkg_mkIndex tclPkgSetup - tcl_findLibrary pkg_compareExtension - tclMacPkgSearch tclPkgUnknown} $p] < 0)} { - rename $p {} - } - } - catch {unset auto_execs} - catch {unset auto_index} - catch {unset auto_oldpath} -} - -# tcl_findLibrary -- -# -# This is a utility for extensions that searches for a library directory -# using a canonical searching algorithm. A side effect is to source -# the initialization script and set a global library variable. -# -# Arguments: -# basename Prefix of the directory name, (e.g., "tk") -# version Version number of the package, (e.g., "8.0") -# patch Patchlevel of the package, (e.g., "8.0.3") -# initScript Initialization script to source (e.g., tk.tcl) -# enVarName environment variable to honor (e.g., TK_LIBRARY) -# varName Global variable to set when done (e.g., tk_library) - -proc tcl_findLibrary {basename version patch initScript enVarName varName} { - upvar #0 $varName the_library - global env errorInfo - - set dirs {} - set errors {} - - # The C application may have hardwired a path, which we honor - - if {[info exist the_library] && [string compare $the_library {}]} { - lappend dirs $the_library - } else { - - # Do the canonical search - - # 1. From an environment variable, if it exists - - if {[info exists env($enVarName)]} { - lappend dirs $env($enVarName) - } - - # 2. Relative to the Tcl library - - lappend dirs [file join [file dirname [info library]] \ - $basename$version] - - # 3. Various locations relative to the executable - # ../lib/foo1.0 (From bin directory in install hierarchy) - # ../../lib/foo1.0 (From bin/arch directory in install hierarchy) - # ../library (From unix directory in build hierarchy) - # ../../library (From unix/arch directory in build hierarchy) - # ../../foo1.0b1/library (From unix directory in parallel build hierarchy) - # ../../../foo1.0b1/library (From unix/arch directory in parallel build hierarchy) - - set parentDir [file dirname [file dirname [info nameofexecutable]]] - set grandParentDir [file dirname $parentDir] - lappend dirs [file join $parentDir lib $basename$version] - lappend dirs [file join $grandParentDir lib $basename$version] - lappend dirs [file join $parentDir library] - lappend dirs [file join $grandParentDir library] - if {![regexp {.*[ab][0-9]*} $patch ver]} { - set ver $version - } - lappend dirs [file join $grandParentDir $basename$ver library] - lappend dirs [file join [file dirname $grandParentDir] $basename$ver library] - } - foreach i $dirs { - set the_library $i - set file [file join $i $initScript] - - # source everything when in a safe interpreter because - # we have a source command, but no file exists command - - if {[interp issafe] || [file exists $file]} { - if {![catch {uplevel #0 [list source $file]} msg]} { - return - } else { - append errors "$file: $msg\n$errorInfo\n" - } - } - } - set msg "Can't find a usable $initScript in the following directories: \n" - append msg " $dirs\n\n" - append msg "$errors\n\n" - append msg "This probably means that $basename wasn't installed properly.\n" - error $msg -} - - -# ---------------------------------------------------------------------- -# auto_mkindex -# ---------------------------------------------------------------------- -# The following procedures are used to generate the tclIndex file -# from Tcl source files. They use a special safe interpreter to -# parse Tcl source files, writing out index entries as "proc" -# commands are encountered. This implementation won't work in a -# safe interpreter, since a safe interpreter can't create the -# special parser and mess with its commands. - -if {[interp issafe]} { - return ;# Stop sourcing the file here -} - -# auto_mkindex -- -# Regenerate a tclIndex file from Tcl source files. Takes as argument -# the name of the directory in which the tclIndex file is to be placed, -# followed by any number of glob patterns to use in that directory to -# locate all of the relevant files. -# -# Arguments: -# dir - Name of the directory in which to create an index. -# args - Any number of additional arguments giving the -# names of files within dir. If no additional -# are given auto_mkindex will look for *.tcl. - -proc auto_mkindex {dir args} { - global errorCode errorInfo - - if {[interp issafe]} { - error "can't generate index within safe interpreter" - } - - set oldDir [pwd] - cd $dir - set dir [pwd] - - append index "# Tcl autoload index file, version 2.0\n" - append index "# This file is generated by the \"auto_mkindex\" command\n" - append index "# and sourced to set up indexing information for one or\n" - append index "# more commands. Typically each line is a command that\n" - append index "# sets an element in the auto_index array, where the\n" - append index "# element name is the name of a command and the value is\n" - append index "# a script that loads the command.\n\n" - if {$args == ""} { - set args *.tcl - } - - auto_mkindex_parser::init - foreach file [eval glob $args] { - if {[catch {auto_mkindex_parser::mkindex $file} msg] == 0} { - append index $msg - } else { - set code $errorCode - set info $errorInfo - cd $oldDir - error $msg $info $code - } - } - auto_mkindex_parser::cleanup - - set fid [open "tclIndex" w] - puts $fid $index nonewline - close $fid - cd $oldDir -} - -# Original version of auto_mkindex that just searches the source -# code for "proc" at the beginning of the line. - -proc auto_mkindex_old {dir args} { - global errorCode errorInfo - set oldDir [pwd] - cd $dir - set dir [pwd] - append index "# Tcl autoload index file, version 2.0\n" - append index "# This file is generated by the \"auto_mkindex\" command\n" - append index "# and sourced to set up indexing information for one or\n" - append index "# more commands. Typically each line is a command that\n" - append index "# sets an element in the auto_index array, where the\n" - append index "# element name is the name of a command and the value is\n" - append index "# a script that loads the command.\n\n" - if {$args == ""} { - set args *.tcl - } - foreach file [eval glob $args] { - set f "" - set error [catch { - set f [open $file] - while {[gets $f line] >= 0} { - if {[regexp {^proc[ ]+([^ ]*)} $line match procName]} { - set procName [lindex [auto_qualify $procName "::"] 0] - append index "set [list auto_index($procName)]" - append index " \[list source \[file join \$dir [list $file]\]\]\n" - } - } - close $f - } msg] - if {$error} { - set code $errorCode - set info $errorInfo - catch {close $f} - cd $oldDir - error $msg $info $code - } - } - set f "" - set error [catch { - set f [open tclIndex w] - puts $f $index nonewline - close $f - cd $oldDir - } msg] - if {$error} { - set code $errorCode - set info $errorInfo - catch {close $f} - cd $oldDir - error $msg $info $code - } -} - -# Create a safe interpreter that can be used to parse Tcl source files -# generate a tclIndex file for autoloading. This interp contains -# commands for things that need index entries. Each time a command -# is executed, it writes an entry out to the index file. - -namespace eval auto_mkindex_parser { - variable parser "" ;# parser used to build index - variable index "" ;# maintains index as it is built - variable scriptFile "" ;# name of file being processed - variable contextStack "" ;# stack of namespace scopes - variable imports "" ;# keeps track of all imported cmds - variable initCommands "" ;# list of commands that create aliases - - proc init {} { - variable parser - variable initCommands - - if {![interp issafe]} { - set parser [interp create -safe] - $parser hide info - $parser hide rename - $parser hide proc - $parser hide namespace - $parser hide eval - $parser hide puts - $parser invokehidden namespace delete :: - $parser invokehidden proc unknown {args} {} - - # We'll need access to the "namespace" command within the - # interp. Put it back, but move it out of the way. - - $parser expose namespace - $parser invokehidden rename namespace _%@namespace - $parser expose eval - $parser invokehidden rename eval _%@eval - - # Install all the registered psuedo-command implementations - - foreach cmd $initCommands { - eval $cmd - } - } - } - proc cleanup {} { - variable parser - interp delete $parser - unset parser - } -} - -# auto_mkindex_parser::mkindex -- -# -# Used by the "auto_mkindex" command to create a "tclIndex" file for -# the given Tcl source file. Executes the commands in the file, and -# handles things like the "proc" command by adding an entry for the -# index file. Returns a string that represents the index file. -# -# Arguments: -# file Name of Tcl source file to be indexed. - -proc auto_mkindex_parser::mkindex {file} { - variable parser - variable index - variable scriptFile - variable contextStack - variable imports - - set scriptFile $file - - set fid [open $file] - set contents [read $fid] - close $fid - - # There is one problem with sourcing files into the safe - # interpreter: references like "$x" will fail since code is not - # really being executed and variables do not really exist. - # Be careful to escape all naked "$" before evaluating. - - regsub -all {([^\$])\$([^\$])} $contents {\1\\$\2} contents - - set index "" - set contextStack "" - set imports "" - - $parser eval $contents - - foreach name $imports { - catch {$parser eval [list _%@namespace forget $name]} - } - return $index -} - -# auto_mkindex_parser::hook command -# -# Registers a Tcl command to evaluate when initializing the -# slave interpreter used by the mkindex parser. -# The command is evaluated in the master interpreter, and can -# use the variable auto_mkindex_parser::parser to get to the slave - -proc auto_mkindex_parser::hook {cmd} { - variable initCommands - - lappend initCommands $cmd -} - -# auto_mkindex_parser::slavehook command -# -# Registers a Tcl command to evaluate when initializing the -# slave interpreter used by the mkindex parser. -# The command is evaluated in the slave interpreter. - -proc auto_mkindex_parser::slavehook {cmd} { - variable initCommands - - # The $parser variable is defined to be the name of the - # slave interpreter when this command is used later. - - lappend initCommands "\$parser eval [list $cmd]" -} - -# auto_mkindex_parser::command -- -# -# Registers a new command with the "auto_mkindex_parser" interpreter -# that parses Tcl files. These commands are fake versions of things -# like the "proc" command. When you execute them, they simply write -# out an entry to a "tclIndex" file for auto-loading. -# -# This procedure allows extensions to register their own commands -# with the auto_mkindex facility. For example, a package like -# [incr Tcl] might register a "class" command so that class definitions -# could be added to a "tclIndex" file for auto-loading. -# -# Arguments: -# name Name of command recognized in Tcl files. -# arglist Argument list for command. -# body Implementation of command to handle indexing. - -proc auto_mkindex_parser::command {name arglist body} { - hook [list auto_mkindex_parser::commandInit $name $arglist $body] -} - -# auto_mkindex_parser::commandInit -- -# -# This does the actual work set up by auto_mkindex_parser::command -# This is called when the interpreter used by the parser is created. -# -# Arguments: -# name Name of command recognized in Tcl files. -# arglist Argument list for command. -# body Implementation of command to handle indexing. - -proc auto_mkindex_parser::commandInit {name arglist body} { - variable parser - - set ns [namespace qualifiers $name] - set tail [namespace tail $name] - if {$ns == ""} { - set fakeName "[namespace current]::_%@fake_$tail" - } else { - set fakeName "_%@fake_$name" - regsub -all {::} $fakeName "_" fakeName - set fakeName "[namespace current]::$fakeName" - } - proc $fakeName $arglist $body - - # YUK! Tcl won't let us alias fully qualified command names, - # so we can't handle names like "::itcl::class". Instead, - # we have to build procs with the fully qualified names, and - # have the procs point to the aliases. - - if {[regexp {::} $name]} { - set exportCmd [list _%@namespace export [namespace tail $name]] - $parser eval [list _%@namespace eval $ns $exportCmd] - - # The following proc definition does not work if you - # want to tolerate space or something else diabolical - # in the procedure name, (i.e., space in $alias) - # The following does not work: - # "_%@eval {$alias} \$args" - # because $alias gets concat'ed to $args. - # The following does not work because $cmd is somehow undefined - # "set cmd {$alias} \; _%@eval {\$cmd} \$args" - # A gold star to someone that can make test - # autoMkindex-3.3 work properly - - set alias [namespace tail $fakeName] - $parser invokehidden proc $name {args} "_%@eval {$alias} \$args" - $parser alias $alias $fakeName - } else { - $parser alias $name $fakeName - } - return -} - -# auto_mkindex_parser::fullname -- -# Used by commands like "proc" within the auto_mkindex parser. -# Returns the qualified namespace name for the "name" argument. -# If the "name" does not start with "::", elements are added from -# the current namespace stack to produce a qualified name. Then, -# the name is examined to see whether or not it should really be -# qualified. If the name has more than the leading "::", it is -# returned as a fully qualified name. Otherwise, it is returned -# as a simple name. That way, the Tcl autoloader will recognize -# it properly. -# -# Arguments: -# name - Name that is being added to index. - -proc auto_mkindex_parser::fullname {name} { - variable contextStack - - if {![string match ::* $name]} { - foreach ns $contextStack { - set name "${ns}::$name" - if {[string match ::* $name]} { - break - } - } - } - - if {[namespace qualifiers $name] == ""} { - return [namespace tail $name] - } elseif {![string match ::* $name]} { - return "::$name" - } - return $name -} - -# Register all of the procedures for the auto_mkindex parser that -# will build the "tclIndex" file. - -# AUTO MKINDEX: proc name arglist body -# Adds an entry to the auto index list for the given procedure name. - -auto_mkindex_parser::command proc {name args} { - variable index - variable scriptFile - append index [list set auto_index([fullname $name])] \ - " \[list source \[file join \$dir [list $scriptFile]\]\]\n" -} - -# Conditionally add support for Tcl byte code files. There are some -# tricky details here. First, we need to get the tbcload library -# initialized in the current interpreter. We cannot load tbcload into the -# slave until we have done so because it needs access to the tcl_patchLevel -# variable. Second, because the package index file may defer loading the -# library until we invoke a command, we need to explicitly invoke auto_load -# to force it to be loaded. This should be a noop if the package has -# already been loaded - -auto_mkindex_parser::hook { - if {![catch {package require tbcload}]} { - if {[info commands tbcload::bcproc] == ""} { - auto_load tbcload::bcproc - } - load {} tbcload $auto_mkindex_parser::parser - - # AUTO MKINDEX: tbcload::bcproc name arglist body - # Adds an entry to the auto index list for the given pre-compiled - # procedure name. - - auto_mkindex_parser::commandInit tbcload::bcproc {name args} { - variable index - variable scriptFile - append index [list set auto_index([fullname $name])] \ - " \[list source \[file join \$dir [list $scriptFile]\]\]\n" - } - } -} - -# AUTO MKINDEX: namespace eval name command ?arg arg...? -# Adds the namespace name onto the context stack and evaluates the -# associated body of commands. -# -# AUTO MKINDEX: namespace import ?-force? pattern ?pattern...? -# Performs the "import" action in the parser interpreter. This is -# important for any commands contained in a namespace that affect -# the index. For example, a script may say "itcl::class ...", -# or it may import "itcl::*" and then say "class ...". This -# procedure does the import operation, but keeps track of imported -# patterns so we can remove the imports later. - -auto_mkindex_parser::command namespace {op args} { - switch -- $op { - eval { - variable parser - variable contextStack - - set name [lindex $args 0] - set args [lrange $args 1 end] - - set contextStack [linsert $contextStack 0 $name] - $parser eval [list _%@namespace eval $name] $args - set contextStack [lrange $contextStack 1 end] - } - import { - variable parser - variable imports - foreach pattern $args { - if {$pattern != "-force"} { - lappend imports $pattern - } - } - catch {$parser eval "_%@namespace import $args"} - } - } -} - -return |