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