in reply to file explorer type window

Here's code running against a subtree from my system where I stuffed the tree output into a DATA section just to make a self-contained test case. I find it easier to read the YAML output than the Data::Dump output.

#!/usr/bin/perl # http://perlmonks.org/?node_id=1138867 use strict; use warnings; my @depth = {}; while(<DATA>) { /\S/ or last; /([| ]*?[|`]-- )?(.*)/ or next; my $level = length($1 // 0) / 4; $depth[$level]{$2} = $depth[$level + 1] = {}; } use YAML; print Dump $depth[0]; #use Data::Dump qw(pp); pp $depth[0]; __DATA__ wiki |-- RicksWiki_3_3 | |-- RCS | | |-- README,v | | |-- fast,v | | `-- go,v | |-- README | |-- cgi-bin | | |-- RCS | | | |-- server.pl,v | | | `-- wiki.pl,v | | |-- server.pl | | `-- wiki.pl | |-- doc | | |-- RCS | | | `-- index.html,v | | `-- index.html | |-- fast | |-- go | |-- history | | |-- CodeNotes,v | | |-- FormattingRules,v | | `-- PlayGround,v | |-- log.wiki | `-- pages | |-- CamelCase | |-- CodeNotes | |-- FormattingComments | |-- FormattingRules | |-- InstallInstructions | |-- MainPage | |-- OneMinuteWiki | |-- PlayGround | |-- RicksWikiFeatures | `-- SeedPage `-- RicksWiki_3_3.tgz 8 directories, 27 files

And here's the output:

--- wiki: RicksWiki_3_3: RCS: 'README,v': {} 'fast,v': {} 'go,v': {} README: {} cgi-bin: RCS: 'server.pl,v': {} 'wiki.pl,v': {} server.pl: {} wiki.pl: {} doc: RCS: 'index.html,v': {} index.html: {} fast: {} go: {} history: 'CodeNotes,v': {} 'FormattingRules,v': {} 'PlayGround,v': {} log.wiki: {} pages: CamelCase: {} CodeNotes: {} FormattingComments: {} FormattingRules: {} InstallInstructions: {} MainPage: {} OneMinuteWiki: {} PlayGround: {} RicksWikiFeatures: {} SeedPage: {} RicksWiki_3_3.tgz: {}

Note that "tree" in its basic form does not indicate whether a name is a file or a directory.

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Re^2: file explorer type window
by Anonymous Monk on Aug 17, 2015 at 17:07 UTC

    Oops on the level line, (though it still works :)

    my $level = length($1 // '') / 4;

      Dear All,

      Many thanks for your perls of wisdom.

      Here is a crude prototype of what I am interested in.

      #!/usr/bin/perl # http://perlmonks.org/?node_id=1138867 use strict; use warnings; use Tk::ObjScanner; my @depth = {}; open (DATA, "data.txt");#same as what was in the example above while(<DATA>) { /\S/ or last; chomp $_; /([\| ]*?[\|`]-- )?(.*)/ or next; my $a=$1; my $b=$2; if (!defined($a)){ $a=""; } if (!defined($b)){ $b=""; } my $y=length($a); my $level = $y/4; $depth[$level]{$2} = $depth[$level + 1] = {}; } #use YAML; print Dump $depth[0]; close DATA; MainWindow->new->ObjScanner(caller => $depth[0])->pack; + Tk::MainLoop;