[lnkForumImage]
TotalShareware - Download Free Software
Confronta i prezzi di migliaia di prodotti.
Asp Forum
 Home | Login | Register | Search 


 

Forums >

comp.lang.ruby

Processing code file inline

Greg Willits

8/6/2008 7:37:00 AM

I need to have a script load a file and execute that file as if it was
code inline to the script. The file being loaded is not a class, not a
module. It is code that has been dynamically written by another process.

Example:

# file to load
index_33dob.store("NatVir20000515".to_sym, 67)
index_33dob.store("MicSwa19920210".to_sym, 85)
index_33dob.store("AshSmi19950827".to_sym, 19)
index_33dob.store("IvaCov20021108".to_sym, 45)
index_33dob.store("CatOrt19950128".to_sym, 83)

# contrived script to load the file and process it
timer_start = Time.new
index_33dob = {}
include "33dob_entries.rb" # <<--- WHAT DO HERE ?
timer_stop = Time.new
puts "#{timer_stop - timer_start}"
p index_33dob


In other languages I have used, the command include would be used to
integrate the 33dob_entries.rb file as inline code, but neither Ruby's
include nor require can be used to do this AFAICT.

How would I do this with Ruby ?

(I am writing some data structures to disk as code instead of using
Marshal because it is actually much much faster than reconstituing the
data via Marshal, and that re-loading performance is critical to the
app).

thx

-- gw
--
Posted via http://www.ruby-....
2 Answers

Greg Willits

8/6/2008 7:43:00 AM

0

Dang, thought of one more thing right after I sent this and it worked.

I needed to use @index_33dob instead of index_33dob in order to have the
var from the loaded file available to the script.

-- gw



Greg Willits wrote:
> I need to have a script load a file and execute that file as if it was
> code inline to the script. The file being loaded is not a class, not a
> module. It is code that has been dynamically written by another process.
>
> Example:
>
> # file to load
> index_33dob.store("NatVir20000515".to_sym, 67)
> index_33dob.store("MicSwa19920210".to_sym, 85)
> index_33dob.store("AshSmi19950827".to_sym, 19)
> index_33dob.store("IvaCov20021108".to_sym, 45)
> index_33dob.store("CatOrt19950128".to_sym, 83)
>
> # contrived script to load the file and process it
> timer_start = Time.new
> index_33dob = {}
> include "33dob_entries.rb" # <<--- WHAT DO HERE ?
> timer_stop = Time.new
> puts "#{timer_stop - timer_start}"
> p index_33dob
>
>
> In other languages I have used, the command include would be used to
> integrate the 33dob_entries.rb file as inline code, but neither Ruby's
> include nor require can be used to do this AFAICT.
>
> How would I do this with Ruby ?
>
> (I am writing some data structures to disk as code instead of using
> Marshal because it is actually much much faster than reconstituing the
> data via Marshal, and that re-loading performance is critical to the
> app).
>
> thx
>
> -- gw

--
Posted via http://www.ruby-....

Farrel Lifson

8/6/2008 7:46:00 AM

0

2008/8/6 Greg Willits <lists@gregwillits.ws>:
>
> # contrived script to load the file and process it
> timer_start = Time.new
> index_33dob = {}
> include "33dob_entries.rb" # <<--- WHAT DO HERE ?
> timer_stop = Time.new
> puts "#{timer_stop - timer_start}"
> p index_33dob

Read the file into a string, and then use Kernel#eval. Just a warning
that this can be very unsafe if you don't trust the processes
generating the code.

Regards,
Farrel
--
Aimred - Ruby Development and Consulting
http://www....