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# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id: fs.tcl,v 1.6 2004/03/28 02:44:57 hobbs Exp $
#
# File system routines to handle some file system variations
# and how that interoperates with the Tix widgets (mainly HList).
#
# Copyright (c) 2004 ActiveState
##
## Cross-platform
##
proc tixFSSep {} { return "/" }
proc tixFSNormalize {path} {
# possibly use tixFSTilde ?
return [file normalize $path]
}
proc tixFSVolumes {} {
return [file volumes]
}
proc tixFSAncestors {path} {
return [file split [file normalize $path]]
}
# how a filename should be displayed
proc tixFSDisplayFileName {path} {
if {$path eq [file dirname $path]} {
return $path
} else {
return [file tail $path]
}
}
# dir: Make a listing of this directory
# showSubDir: Want to list the subdirectories?
# showFile: Want to list the non-directory files in this directory?
# showPrevDir: Want to list ".." as well?
# showHidden: Want to list the hidden files?
#
# return value: a list of files and/or subdirectories
#
proc tixFSListDir {dir showSubDir showFile showPrevDir \
showHidden {pattern ""}} {
if {$pattern eq ""} { set pattern [list "*"] }
if {$::tcl_platform(platform) eq "unix"
&& $showHidden && $pattern eq "*"} { lappend pattern ".*" }
if {[catch {eval [list glob -nocomplain -directory $dir] \
$pattern} files]} {
# The user has entered an invalid or unreadable directory
# %% todo: prompt error, go back to last succeed directory
return ""
}
set list ""
foreach f [lsort -dictionary $files] {
set tail [file tail $f]
# file tail handles this automatically
#if {[string match ~* $tail]} { set tail ./$tail }
if {[file isdirectory $f]} {
if {$tail eq "."} { continue }
if {$showSubDir} {
if {$tail eq ".." && !$showPrevDir} { continue }
lappend list $tail
}
} else {
if {$showFile} { lappend list $tail }
}
}
return $list
}
# in: internal name
# out: native name
proc tixFSNativeNorm {path} {
return [tixFSNative [tixFSNormalize $path]]
}
# tixFSDisplayName --
#
# Returns the name of a normalized path which is usually displayed by
# the OS
#
proc tixFSDisplayName {path} {
return [tixFSNative $path]
}
proc tixFSTilde {path} {
# verify that paths with leading ~ are files or real users
if {[string match ~* $path]} {
# The following will report if the user doesn't exist
if {![file isdirectory $path]} {
set path ./$path
} else {
set path [file normalize $path]
}
}
return $path
}
proc tixFSJoin {dir sub} {
return [tixFSNative [file join $dir [tixFSTilde $sub]]]
}
proc tixFSNative {path} {
return $path
}
if {$::tcl_platform(platform) eq "windows"} {
##
## WINDOWS
##
# is an absoulte path only if it starts with a baclskash
# or starts with "<drive letter>:"
#
# in: nativeName
#
proc tixFSIsAbsPath {nativeName} {
set ptype [file pathtype $nativename]
return [expr {$ptype eq "absolute" || $ptype eq "volumerelative"}]
}
# tixFSIsValid --
#
# Checks whether a native pathname contains invalid characters.
#
proc tixFSIsValid {path} {
#if {$::tcl_platform(platform) eq "windows"} {set bad "\\/:*?\"<>|\0"}
return 1
}
proc tixFSExternal {path} {
# Avoid normalization on root adding unwanted volumerelative pwd
if {[string match -nocase {[A-Z]:} $path]} {
return $path/
}
return [file normalize $path]
}
proc tixFSInternal {path} {
# Only need to watch for ^[A-Z]:/$, but this does the trick
return [string trimright [file normalize $path] /]
}
} else {
##
## UNIX
##
proc tixFSIsAbsPath {path} {
return [string match {[~/]*} $path]
}
# tixFSIsValid --
#
# Checks whether a native pathname contains invalid characters.
#
proc tixFSIsValid {path} { return 1 }
proc tixFSExternal {path} { return $path }
proc tixFSInternal {path} { return $path }
}