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authordgp <dgp@users.sourceforge.net>2005-04-19 16:32:51 (GMT)
committerdgp <dgp@users.sourceforge.net>2005-04-19 16:32:51 (GMT)
commit7d6158ddbd0deb5c5320cfa94ce50e58bdf6ecfc (patch)
tree0b4e1a36e2352961dd37023905e31057474481de /library/init.tcl
parent8083af6181543c3852c249319b540c74186e6967 (diff)
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* generic/tclBasic.c: Added unsupported command
* generic/tclCmdAH.c: [::tcl::unsupported::EncodingDirs] to permit * generic/tclInt.h: query/set of the encoding search path at * generic/tclInterp.c: the script level. Updated init.tcl to make * library/init.tcl: use of the new command. Also updated several coding practices in init.tcl ("eq" for [string equal], etc.)
Diffstat (limited to 'library/init.tcl')
-rw-r--r--library/init.tcl84
1 files changed, 45 insertions, 39 deletions
diff --git a/library/init.tcl b/library/init.tcl
index 2f6e51c..a959beb 100644
--- a/library/init.tcl
+++ b/library/init.tcl
@@ -3,7 +3,7 @@
# Default system startup file for Tcl-based applications. Defines
# "unknown" procedure and auto-load facilities.
#
-# RCS: @(#) $Id: init.tcl,v 1.70 2005/04/15 15:50:35 dgp Exp $
+# RCS: @(#) $Id: init.tcl,v 1.71 2005/04/19 16:32:57 dgp Exp $
#
# Copyright (c) 1991-1993 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
@@ -48,11 +48,9 @@ if {![info exists auto_path]} {
}
namespace eval tcl {
variable Dir
- if {$::tcl_library != ""} {
- foreach Dir [list $::tcl_library [file dirname $::tcl_library]] {
- if {[lsearch -exact $::auto_path $Dir] < 0} {
- lappend ::auto_path $Dir
- }
+ foreach Dir [list $::tcl_library [file dirname $::tcl_library]] {
+ if {[lsearch -exact $::auto_path $Dir] < 0} {
+ lappend ::auto_path $Dir
}
}
set Dir [file join [file dirname [file dirname \
@@ -60,18 +58,25 @@ namespace eval tcl {
if {[lsearch -exact $::auto_path $Dir] < 0} {
lappend ::auto_path $Dir
}
- if {[info exists ::tcl_pkgPath]} {
+ catch {
foreach Dir $::tcl_pkgPath {
if {[lsearch -exact $::auto_path $Dir] < 0} {
lappend ::auto_path $Dir
}
}
}
+
+ variable Path [unsupported::EncodingDirs]
+ set Dir [file join $::tcl_library encoding]
+ if {[lsearch -exact $Path $Dir] < 0} {
+ lappend Path $Dir
+ unsupported::EncodingDirs $Path
+ }
}
-
+
# Windows specific end of initialization
-if {(![interp issafe]) && [string equal $tcl_platform(platform) "windows"]} {
+if {(![interp issafe]) && ($tcl_platform(platform) eq "windows")} {
namespace eval tcl {
proc EnvTraceProc {lo n1 n2 op} {
set x $::env($n2)
@@ -82,7 +87,7 @@ if {(![interp issafe]) && [string equal $tcl_platform(platform) "windows"]} {
global env tcl_platform
foreach p [array names env] {
set u [string toupper $p]
- if {![string equal $u $p]} {
+ if {$u ne $p]} {
switch -- $u {
COMSPEC -
PATH {
@@ -98,7 +103,7 @@ if {(![interp issafe]) && [string equal $tcl_platform(platform) "windows"]} {
}
}
if {![info exists env(COMSPEC)]} {
- if {[string equal $tcl_platform(os) "Windows NT"]} {
+ if {$tcl_platform(os) eq "Windows NT"} {
set env(COMSPEC) cmd.exe
} else {
set env(COMSPEC) command.com
@@ -111,16 +116,19 @@ if {(![interp issafe]) && [string equal $tcl_platform(platform) "windows"]} {
# Setup the unknown package handler
-package unknown tclPkgUnknown
-if {![interp issafe]} {
- # setup platform specific unknown package handlers
- if {[string equal $::tcl_platform(platform) "unix"] && \
- [string equal $::tcl_platform(os) "Darwin"]} {
- package unknown [list tcl::MacOSXPkgUnknown [package unknown]]
- }
+if {[interp issafe]} {
+ package unknown ::tclPkgUnknown
+} else {
# Set up search for Tcl Modules (TIP #189).
- package unknown [list ::tcl::tm::UnknownHandler [package unknown]]
+ # and setup platform specific unknown package handlers
+ if {$::tcl_platform(os) eq "Darwin"
+ && $::tcl_platform(platform) eq "unix"} {
+ package unknown {::tcl::tm::UnknownHandler \
+ {::tcl::MacOSXPkgUnknown ::tclPkgUnknown}}
+ } else {
+ package unknown {::tcl::tm::UnknownHandler ::tclPkgUnknown}
+ }
# Set up the 'clock' ensemble
@@ -290,19 +298,19 @@ proc unknown args {
}
}
- if {([info level] == 1) && [string equal [info script] ""] \
+ if {([info level] == 1) && ([info script] eq "") \
&& [info exists tcl_interactive] && $tcl_interactive} {
if {![info exists auto_noexec]} {
set new [auto_execok $name]
if {$new != ""} {
set redir ""
- if {[string equal [info commands console] ""]} {
+ if {[info commands console] eq ""} {
set redir ">&@stdout <@stdin"
}
return [uplevel 1 exec $redir $new [lrange $args 1 end]]
}
}
- if {[string equal $name "!!"]} {
+ if {$name eq "!!"} {
set newcmd [history event]
} elseif {[regexp {^!(.+)$} $name dummy event]} {
set newcmd [history event $event]
@@ -317,7 +325,7 @@ proc unknown args {
}
set ret [catch {set candidates [info commands $name*]} msg]
- if {[string equal $name "::"]} {
+ if {$name eq "::"} {
set name ""
}
if {$ret != 0} {
@@ -337,7 +345,7 @@ proc unknown args {
return [uplevel 1 [lreplace $args 0 0 $cmds]]
}
if {[llength $cmds]} {
- if {[string equal $name ""]} {
+ if {$name eq ""} {
return -code error "empty command name \"\""
} else {
return -code error \
@@ -416,8 +424,7 @@ proc auto_load_index {} {
variable ::tcl::auto_oldpath
global auto_index auto_path
- if {[info exists auto_oldpath] && \
- [string equal $auto_oldpath $auto_path]} {
+ if {[info exists auto_oldpath] && ($auto_oldpath eq $auto_path)} {
return 0
}
set auto_oldpath $auto_path
@@ -436,12 +443,11 @@ proc auto_load_index {} {
} else {
set error [catch {
set id [gets $f]
- if {[string equal $id \
- "# Tcl autoload index file, version 2.0"]} {
+ if {$id eq "# Tcl autoload index file, version 2.0"} {
eval [read $f]
- } elseif {[string equal $id "# Tcl autoload index file: each line identifies a Tcl"]} {
+ } elseif {$id eq "# Tcl autoload index file: each line identifies a Tcl"]} {
while {[gets $f line] >= 0} {
- if {[string equal [string index $line 0] "#"] \
+ if {([string index $line 0] eq "#") \
|| ([llength $line] != 2)} {
continue
}
@@ -506,14 +512,14 @@ proc auto_qualify {cmd namespace} {
# (if the current namespace is not the global one)
if {$n == 0} {
- if {[string equal $namespace ::]} {
+ if {$namespace eq "::"} {
# ( nocolons , :: ) -> nocolons
return [list $cmd]
} else {
# ( nocolons , ::sub ) -> ::sub::nocolons nocolons
return [list ${namespace}::$cmd $cmd]
}
- } elseif {[string equal $namespace ::]} {
+ } elseif {$namespace eq "::"} {
# ( foo::bar , :: ) -> ::foo::bar
return [list ::$cmd]
} else {
@@ -568,7 +574,7 @@ proc auto_import {pattern} {
# Arguments:
# name - Name of a command.
-if {[string equal windows $tcl_platform(platform)]} {
+if {$tcl_platform(platform) eq "windows"} {
# Windows version.
#
# Note that info executable doesn't work under Windows, so we have to
@@ -586,7 +592,7 @@ proc auto_execok name {
set shellBuiltins [list cls copy date del erase dir echo mkdir \
md rename ren rmdir rd time type ver vol]
- if {[string equal $tcl_platform(os) "Windows NT"]} {
+ if {$tcl_platform(os) eq "Windows NT"} {
# NT includes the 'start' built-in
lappend shellBuiltins "start"
}
@@ -623,7 +629,7 @@ proc auto_execok name {
set windir $env(WINDIR)
}
if {[info exists windir]} {
- if {[string equal $tcl_platform(os) "Windows NT"]} {
+ if {$tcl_platform(os) eq "Windows NT"} {
append path "$windir/system32;"
}
append path "$windir/system;$windir;"
@@ -637,7 +643,7 @@ proc auto_execok name {
foreach dir [split $path {;}] {
# Skip already checked directories
- if {[info exists checked($dir)] || [string equal {} $dir]} { continue }
+ if {[info exists checked($dir)] || ($dir eq {})} { continue }
set checked($dir) {}
foreach ext $execExtensions {
set file [file join $dir ${name}${ext}]
@@ -666,7 +672,7 @@ proc auto_execok name {
return $auto_execs($name)
}
foreach dir [split $env(PATH) :] {
- if {[string equal $dir ""]} {
+ if {$dir eq ""} {
set dir .
}
set file [file join $dir $name]
@@ -698,7 +704,7 @@ proc tcl::CopyDirectory {action src dest} {
set nsrc [file normalize $src]
set ndest [file normalize $dest]
- if {[string equal $action "renaming"]} {
+ if {$action eq "renaming"} {
# Can't rename volumes. We could give a more precise
# error message here, but that would break the test suite.
if {[lsearch -exact [file volumes] $nsrc] != -1} {
@@ -713,7 +719,7 @@ proc tcl::CopyDirectory {action src dest} {
\"$dest\": trying to rename a volume or move a directory\
into itself"
}
- if {[string equal $action "copying"]} {
+ if {$action eq "copying"} {
# We used to throw an error here, but, looking more closely
# at the core copy code in tclFCmd.c, if the destination
# exists, then we should only call this function if -force