ASCII class inheritance tree generator

ruby-talk
1

I thought I might share this little piece of code that
generates a ‘lstree’-like output for class-hierarchy:

[snip helpful code]

Thank you. It’s very handy :slight_smile:
Can you post this on wiki?

Cheers,
Simon

kind regards -botp

···

Simon Vandemoortele [mailto:deliriousNOSPAM@atchoo.be] wrote:

2

Done !

Feel free to improve the code.

Greetz,
Simon

···

On Mon, 21 Apr 2003 18:19:25 +0900, Peña, Botp botp@delmonte-phil.com wrote:

Can you post this on wiki?

–
There are 10 types of people in the world…
those who understand binary and those who don’t.

3

simon, you may want to consider added a user page for yourself, and adding a
link the that page there - as i for one will NEVER remember that link :wink:

i put together an easy way to do this at

http://www.rubygarden.org/ruby?HowToCreateUserPages

(you just add your name to the list)

also, this page combines all the listings of HomePages and UserPages so it’s a
good central index - i don’t really know the history of both ‘User’ and
‘Home’.

you can also get to the page from the top level

http://www.rubygarden.org/ruby

-a

···

On Wed, 23 Apr 2003, Simon Vandemoortele wrote:

On Mon, 21 Apr 2003 18:19:25 +0900, Peña, Botp botp@delmonte-phil.com wrote:

Can you post this on wiki?

Done !

http://www.rubygarden.org/ruby?ASCIIClassHierarchyGenerator

Feel free to improve the code.

–

Ara Howard
NOAA Forecast Systems Laboratory
Information and Technology Services
Data Systems Group
R/FST 325 Broadway
Boulder, CO 80305-3328
Email: ara.t.howard@fsl.noaa.gov
Phone: 303-497-7238
Fax: 303-497-7259
====================================

4

“Simon Vandemoortele” wrote

Can you post this on wiki?

http://www.rubygarden.org/ruby?ASCIIClassHierarchyGenerator

‘Stress-testing’, I tried …

classTree(Object)

→ : undefined method `instance_methods’ for nil (NoMethodError)

classTree(Kernel)

→ : undefined method `superclass’ for Kernel:Module (NoMethodError)

Both can be supported by a one-line (?wrapped? below) update …

  methods = (current_root.instance_methods - begin

current_root.superclass.instance_methods rescue end).sort

Cheers,

daz

···

On Mon, 21 Apr 2003 18:19:25 +0900, Peña, Botp wrote:

–
n= 0x1397701A73D121E6E6EFD395340
s= (‘a’…‘z’).to_a.join << 'JARI ’
print s[n&31,1] until (n>>=5)==0

5

classTree(Object)

→ : undefined method `instance_methods’ for nil (NoMethodError)

Harry Olson caught this one too (see his solution in this thread).

classTree(Kernel)

→ : undefined method `superclass’ for Kernel:Module (NoMethodError)

Both can be supported by a one-line (?wrapped? below) update …

  methods = (current_root.instance_methods - begin

current_root.superclass.instance_methods rescue end).sort

After adding ‘NameError’ behind ‘rescue’ this solution also works here.
I have updated the code on the Wiki page.
(Note that the latest version prints in color …)

Simon

···

On Sun, 27 Apr 2003 at 07:17 GMT, daz wrote:

There are 10 types of people in the world…
those who understand binary and those who don’t.

6

classTree(Object)

→ : undefined method `instance_methods’ for nil (NoMethodError)

Harry Olson caught this one too (see his solution in this thread).

Oops, long thread and still 800 unread messages :frowning:

After adding ‘NameError’ behind ‘rescue’ this solution also works
here.
I have updated the code on the Wiki page.

Glad I didn’t update the Wiki with a 1.7+ fix. Thanks.

classTree(File)

→ : :41:in `*': negative argument (ArgumentError)

maxlength = 0

… ‘nervously’ changed here to …

maxlength = root.to_s.length

… without fully understanding the consequences.

Cheers,

daz

···

“Simon Vandemoortele” deliriousNOSPAM@atchoo.be wrote:

On Sun, 27 Apr 2003 at 07:17 GMT, daz wrote: