CLI formatting

bahadur has asked for the wisdom of the Perl Monks concerning the following question:

Hi, i have just made a CLI and one of the commands give me this sort of an output.

nMetrics>Name.........Address..........Type..........PollInt..........
+Protocol
      Cisco2500.........192.168.1.254............SNMP............300..
+..........Interface 5
      Cisco_Telnet.........192.168.1.254............Router............
+300............telnet
Desktop_1.........192.168.1.5............NTServer............300......
+......icmp
Desktop_2.........192.168.1.5............NTServer............300......
+......icmp
Desktop_3.........192.168.1.5............NTServer............300......
+......icmp
Desktop_4.........192.168.1.5............NTServer............300......
+......icmp
Desktop_5.........192.168.1.5............NTServer............300......
+......icmp
DevelopmentHost.........192.168.1.1............Router............300..
+..........icmp
ExtMailServer.........192.168.1.101............MailServer............3
+00............smtp
FileServer.........192.168.1.101............NTServer............300...
+.........icmp
FloorSwitch.........192.168.1.2............Switch/Hub............300..
+..........icmp
MainSwitch.........192.168.1.12............Switch/Hub............300..
+..........89
PrintServer.........192.168.1.5............UnixHost............300....
+........icmp
Swicth.........192.168.1.12............SNMP............300............
+Interface 12
test.........192.168.1.12............SNMP............300............In
+terface 12
WebServer.........10.1.1.1............Router............300...........
+.icmp
[download]

as u can see the output is poorly formatted. is there any module out there which can format this output for me in a nice way.

Comment on CLI formatting Download Code

Replies are listed 'Best First'.
Re: CLI formatting by sk (Curate) on Jul 04, 2005 at 01:52 UTC
Did you write the code that generated this output? Are you wondering how to write the text out in a nice way? If so, then do `perldoc -f format` and `perldoc perlform`. This should give you a lot of information about how to format the text. I see you are trying to output fixed number of dots between fields..you want to assign a fixed length between fields and add dots based on that.. If you are on Window$ you can also create a HTML table fairly quickly and then display it on the browser.. If you are looking for something to capture that output you showed us and format it... check out what jpeg listed cheers SK	[reply] [d/l] [select]
Re^2: CLI formatting by bahadur (Sexton) on Jul 04, 2005 at 01:58 UTC
@sk thanks for the help yes that output is from my code and i am trying to display it on the screen (command line) in a nice readable way much like the command top does on linux. i ll check the perl docs for that. if there is any other formating module avaiable do tell me.	[reply]
Re: CLI formatting by jpeg (Chaplain) on Jul 04, 2005 at 01:43 UTC
There are probably modules, but backticks (or qx/ / to capture the output) and split(/\./, $line ) or a regex would do it. Check perldoc -f split, perldoc -f substr, and perldoc perlop for qx, and perldoc perlretut (sorry, but I don't post code until I see what people have tried.) When you say "I have just made a CLI" I guess you don't mean you wrote the original program? If you did or have access to it, why not fix it there? -- jpg	[reply]
Re: CLI formatting by neniro (Priest) on Jul 04, 2005 at 08:27 UTC
An example for using perls builtin format (see http://perldoc.perl.org/perlform.html for details): `my ($name, $type, $len, $null, $pri, $inc); format STDOUT_TOP = Name ---------------- Type ------ Len--- Null Pri- Inc- . format STDOUT = @<<<<<<<<<<<<<<<<<<<\| @<<<<<<<<<\| @>>>>\| @>>\| @>>\| @>>\| $name, $type, $len, $null, $pri, $inc . for (@structure) { ($name, $type, $len, $null, $pri, $inc) = ( $_->{f_name}, $_->{f_type}, $_->{f_length}, $_->{f_nullable}, $_->{f_pri_key}, $_->{f_autoinc}, ); write (STDOUT); }` [download] It's easy to use, and it does all you want, so why do you search another module?	[reply] [d/l]
Re: CLI formatting by jplindstrom (Monsignor) on Jul 04, 2005 at 09:22 UTC
Text::Table is excellent for displaying tabular data in text mode. Highly recommended. /J	[reply]


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