| Category: |
Utility / Win32 |
| Author/Contact Info |
/msg guha |
| Description: |
Since I moved to Win XP my old and trusted companion for easily jumping between different spots in the directory tree, NCD (Norton Change Directory) has ceased to work.
NCD worked by building a database and by using NCD to make and remove directories, the database could be kept in sync, well almost anyway.
If the directory you wanted to go to had a unique name all you had to type was NCD dir_name but if it was a common name like test you might have had to recall the commandline one or more times to get to the destination.
Another approach would be to note that if you consider part of or the whole branch, from root to the destination, the situation will be less ambigous or even unique
Using that idea I came up with this simple solution which IMHO works quite well. The user interface may be rendered idiosyncratic by some, but I welcome you to suggest improvements.
The documentation is nothing fancy just a few examples included in the code.
The program is tested under Win XP, but I think it could work on other OS's with some minor tweaks.
PS. As directory delimiter "\", "/" or even "," can be used. The comma is due to laziness, because on the Swedish keyboard one has to use Shift or Alt Gr key to get slashes!!
So instead of typing
cd "C:\Documents and Settings\All Users\Application Data\Microsoft\Crypto\RSA\Machin
eKeys"
at the DOS prompt, typing the more dense command of
a ,d,a,a,m,c,r,m
will suffice.
Or even horrors a ,d,,,,,r,m ;-), but that one is tougher on the filesystem. |
@perl -Swx %0 %*
@c:\a_cd.bat
@goto :eof
#!perl
#
# Utility for quickly changing directory
# Named to "a.bat" in homage to Pr1mOS's change working directory comm
+and *a* (attach) ;-]
#
# Syntax:
# a ,wi,ja,pa ===> cd \Windows\java\Packages
# a ...\me ===> cd \Windows\Media
# a ===> cd \Windows\Media\Microsoft Office 2000 *OR* a se
+lection of subdirectories
# a / ===> cd \
# a mys,d,*
# [a] /mysql/data/mysql/
# [b] /mysql/data/tast/
# [c] /mysql/data/test/
# [d] /mysql/Docs/Flags/
# select:
#
# if ambigous the correct target is selected with alpha keys /a .. zz/
#
# Versions:
# 0.2 2003-02-22 Cleanup
# 0.1 2003-01-31 First working
# 0.0 2003-01-15 Start of Coding
#
use strict;
use warnings;
use Cwd;
my $DEBUG = 0;
my $DELIM = qr{,|\\|\/}; ## Either "," or "/" or \"
my @to = @ARGV ? split(/$DELIM/, $ARGV[0] ) : ();
my @cwd = split(/$DELIM/, cwd);
shift @cwd; # Remove disk
unless ( @ARGV ) {
push @to, @cwd, '*';
}
elsif ( $ARGV[0] =~ /^$DELIM/ and not @to ){
}
elsif ( $to[0] eq '' ) {
shift @to;
}
else {
unshift @to, @cwd;
}
## Lazy-dots
foreach my $part (0 .. $#to) {
if ( $to[$part] =~ /\.(\.+)/ ) {
$to[$part] = join('/', ('..') x length($1));
}
}
@to = split(/\//, join('/', @to));
## Rel2Abs
my @fixed;
for (@to) {
if ($_ eq '..') {
pop @fixed if @fixed;
} elsif($_ eq '.') {
## Skip
} else {
push @fixed, $_
}
}
my @choices = expand('/', @fixed);
my %hash;
my $enum = 'a';
my $choice = '';
if (1 == @choices) { # Autoselect if only one item to choose
$hash{a} = $choices[0];
$choice = $enum;
} elsif(1 < @choices) {
foreach my $c (@choices) {
($hash{$enum} = $c) ;
print '[', $enum++, "] $c\n";
}
print "select: ";
$choice = <STDIN>;
chomp $choice;
}
# Create a batch file to change the directory in the shell.
open (CD, '>', 'C:/A_CD.BAT') or die "Failed to create CD bat file $!\
+n";
if ( defined $hash{$choice} ) {
$hash{$choice} =~ s/\//\\/g; # Make windows happy
print CD "\@CD \"$hash{$choice}\"\n";
} else {
print CD "\@echo No match\n";
}
close CD;
sub expand {
my ($bough, @twigs) = @_;
return $bough unless @twigs; ## Looked it up in the thesaurus ;-]
opendir(my $dh, $bough) || die "Can not check $bough for twigs due
+ to $!\n";
my $regexp = shift @twigs;
$regexp =~ s/\*/.*/;
my @found;
foreach my $f ( grep { $_ =~ /^$regexp/i and $_ !~ /^\./} readdir
+($dh) ) {
push @found, expand("$bough$f/", @twigs) if (-d "$bough$f");
}
closedir($dh) || die "Bad close for $bough $!\n";
return @found;
}
__END__
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