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-rw-r--r--library/init.tcl57
1 files changed, 30 insertions, 27 deletions
diff --git a/library/init.tcl b/library/init.tcl
index d93a653..e1f4b05 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 1.77 2005/06/06 23:45:46 dkf Exp $
+# RCS: @(#) $Id: init.tcl,v 1.78 2005/07/23 04:12:49 dgp Exp $
#
# Copyright (c) 1991-1993 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
@@ -114,9 +114,9 @@ if {(![interp issafe]) && ($tcl_platform(platform) eq "windows")} {
if {![info exists env($u)]} {
set env($u) $env($p)
}
- trace variable env($p) w \
+ trace add variable env($p) write \
[namespace code [list EnvTraceProc $p]]
- trace variable env($u) w \
+ trace add variable env($u) write \
[namespace code [list EnvTraceProc $p]]
}
}
@@ -177,7 +177,7 @@ if {[interp issafe]} {
# Conditionalize for presence of exec.
-if {[llength [info commands exec]] == 0} {
+if {[namespace which -command exec] eq ""} {
# Some machines do not have exec. Also, on all
# platforms, safe interpreters do not have exec.
@@ -188,7 +188,7 @@ if {[llength [info commands exec]] == 0} {
# Define a log command (which can be overwitten to log errors
# differently, specially when stderr is not available)
-if {[llength [info commands tclLog]] == 0} {
+if {[namespace which -command tclLog] eq ""} {
proc tclLog {string} {
catch {puts stderr $string}
}
@@ -235,7 +235,7 @@ proc unknown args {
catch {set savedErrorInfo $::errorInfo}
catch {set savedErrorCode $::errorCode}
- set name [lindex $args 0]
+ set name $cmd
if {![info exists auto_noload]} {
#
# Make sure we're not trying to load the same proc twice.
@@ -323,9 +323,9 @@ proc unknown args {
&& [info exists tcl_interactive] && $tcl_interactive} {
if {![info exists auto_noexec]} {
set new [auto_execok $name]
- if {$new != ""} {
+ if {$new ne ""} {
set redir ""
- if {[info commands console] eq ""} {
+ if {[namespace which -command console] eq ""} {
set redir ">&@stdout <@stdin"
}
return [uplevel 1 exec $redir $new [lrange $args 1 end]]
@@ -333,9 +333,9 @@ proc unknown args {
}
if {$name eq "!!"} {
set newcmd [history event]
- } elseif {[regexp {^!(.+)$} $name dummy event]} {
+ } elseif {[regexp {^!(.+)$} $name -> event]} {
set newcmd [history event $event]
- } elseif {[regexp {^\^([^^]*)\^([^^]*)\^?$} $name dummy old new]} {
+ } elseif {[regexp {^\^([^^]*)\^([^^]*)\^?$} $name -> old new]} {
set newcmd [history event -1]
catch {regsub -all -- $old $newcmd $new newcmd}
}
@@ -354,11 +354,19 @@ proc unknown args {
"\n (expanding command prefix \"$name\" in unknown)"
return -options $opts $msg
}
+ # Handle empty $name separately due to strangeness in [string first]
+ if {$name eq ""} {
+ if {[llength $candidates] != 1} {
+ return -code error "empty command name \"\""
+ }
+ # It's not really possible to reach here.
+ return [uplevel 1 [lreplace $args 0 0 [lindex $candidates 0]]]
+ }
# Filter out bogus matches when $name contained
# a glob-special char [Bug 946952]
set cmds [list]
foreach x $candidates {
- if {[string range $x 0 [expr [string length $name]-1]] eq $name} {
+ if {[string first $name $x] == 0} {
lappend cmds $x
}
}
@@ -366,12 +374,7 @@ proc unknown args {
return [uplevel 1 [lreplace $args 0 0 [lindex $cmds 0]]]
}
if {[llength $cmds]} {
- if {$name eq ""} {
- return -code error "empty command name \"\""
- } else {
- return -code error \
- "ambiguous command name \"$name\": [lsort $cmds]"
- }
+ return -code error "ambiguous command name \"$name\": [lsort $cmds]"
}
}
return -code error "invalid command name \"$name\""
@@ -392,7 +395,7 @@ proc unknown args {
proc auto_load {cmd {namespace {}}} {
global auto_index auto_path
- if {[string length $namespace] == 0} {
+ if {$namespace eq ""} {
set namespace [uplevel 1 [list ::namespace current]]
}
set nameList [auto_qualify $cmd $namespace]
@@ -480,7 +483,7 @@ proc auto_load_index {} {
error "[file join $dir tclIndex] isn't a proper Tcl index file"
}
} msg opts]
- if {$f != ""} {
+ if {$f ne ""} {
close $f
}
if {$error} {
@@ -519,13 +522,13 @@ proc auto_qualify {cmd namespace} {
# with the following form :
# ( inputCmd, inputNameSpace) -> output
- if {[regexp {^::(.*)$} $cmd x tail]} {
+ if {[string match ::* $cmd]} {
if {$n > 1} {
# ( ::foo::bar , * ) -> ::foo::bar
return [list $cmd]
} else {
# ( ::global , * ) -> global
- return [list $tail]
+ return [list [string range $cmd 2 end]]
}
}
@@ -735,7 +738,7 @@ proc tcl::CopyDirectory {action src dest} {
}
}
if {[file exists $dest]} {
- if {$nsrc == $ndest} {
+ if {$nsrc eq $ndest} {
return -code error "error $action \"$src\" to\
\"$dest\": trying to rename a volume or move a directory\
into itself"
@@ -755,10 +758,10 @@ proc tcl::CopyDirectory {action src dest} {
# can be returned in various combinations. Anyway,
# if any other file is returned, we must signal an error.
set existing [glob -nocomplain -directory $dest * .*]
- eval [list lappend existing] \
- [glob -nocomplain -directory $dest -type hidden * .*]
+ lappend existing {expand}[glob -nocomplain -directory $dest \
+ -type hidden * .*]
foreach s $existing {
- if {([file tail $s] != ".") && ([file tail $s] != "..")} {
+ if {([file tail $s] ne ".") && ([file tail $s] ne "..")} {
return -code error "error $action \"$src\" to\
\"$dest\": file already exists"
}
@@ -768,7 +771,7 @@ proc tcl::CopyDirectory {action src dest} {
if {[string first $nsrc $ndest] != -1} {
set srclen [expr {[llength [file split $nsrc]] -1}]
set ndest [lindex [file split $ndest] $srclen]
- if {$ndest == [file tail $nsrc]} {
+ if {$ndest eq [file tail $nsrc]} {
return -code error "error $action \"$src\" to\
\"$dest\": trying to rename a volume or move a directory\
into itself"
@@ -786,7 +789,7 @@ proc tcl::CopyDirectory {action src dest} {
[glob -nocomplain -directory $src -types hidden *]]
foreach s [lsort -unique $filelist] {
- if {([file tail $s] != ".") && ([file tail $s] != "..")} {
+ if {([file tail $s] ne ".") && ([file tail $s] ne "..")} {
file copy -force $s [file join $dest [file tail $s]]
}
}
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