First question in here

[marcos rebelo]

Hy all

I'm new in here, so hi all for the first time. I'm a Perl and I'm
trying to learn a second scripting language, and I liked Ruby.

I'm getting crazy with one thing, documentation. Where did you set it?


Do Ruby as support to JASON, I didn't found it.


Best Regards
MArcos

 

[Tim Hunter]

Hy all

I'm new in here, so hi all for the first time. I'm a Perl and I'm
trying to learn a second scripting language, and I liked Ruby.

I'm getting crazy with one thing, documentation. Where did you set it?


Do Ruby as support to JASON, I didn't found it.


Best Regards
MArcos

http://www.ruby-doc.org/

If you mean "JSON", did you try Googling "ruby+json"?

 

[marcos rebelo]

trying to install JSON

I get diferent errors

gem install json

Bulk updating Gem source index for: http://gems.rubyforge.org
ERROR: While executing gem ... (Gem::GemNotFoundException)
Could not find json (> 0) in any repository

or

gem install json

Bulk updating Gem source index for: http://gems.rubyforge.org
Select which gem to install for your platform (i486-linux)
1. json 1.1.1 (mswin32)
2. json 1.1.1 (ruby)
3. json 1.1.0 (mswin32)
4. json 1.1.0 (ruby)
5. Skip this gem
6. Cancel installation

2

Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

ruby extconf.rb install json
creating Makefile

make
cc -I. -I/usr/lib/ruby/1.8/i486-linux -I/usr/lib/ruby/1.8/i486-linux
-I. -fPIC -fno-strict-aliasing -g -O2 -fPIC -c unicode.c
In file included from unicode.h:5,
from unicode.c:3:
/usr/lib/ruby/1.8/i486-linux/ruby.h:40:21: error: stdlib.h: No such
file or directory
/usr/lib/ruby/1.8/i486-linux/ruby.h:44:21: error: string.h: No such
file or directory
/usr/lib/ruby/1.8/i486-linux/ruby.h:54:19: error: stdio.h: No such
file or directory
/usr/lib/ruby/1.8/i486-linux/ruby.h:71:20: error: alloca.h: No such
file or directory
In file included from /usr/lib/gcc/i486-linux-gnu/4.1.3/include/syslimits.h:7,
from /usr/lib/gcc/i486-linux-gnu/4.1.3/include/limits.h:11,
from /usr/lib/ruby/1.8/i486-linux/ruby.h:91,
from unicode.h:5,
from unicode.c:3:
/usr/lib/gcc/i486-linux-gnu/4.1.3/include/limits.h:122:61: error:
limits.h: No such file or directory
In file included from /usr/lib/ruby/1.8/i486-linux/ruby.h:718,
from unicode.h:5,
from unicode.c:3:
/usr/lib/ruby/1.8/i486-linux/missing.h:16:24: error: sys/time.h: No
such file or directory
/usr/lib/ruby/1.8/i486-linux/missing.h:25:25: error: sys/types.h: No
such file or directory
In file included from /usr/lib/ruby/1.8/i486-linux/ruby.h:719,
from unicode.h:5,
from unicode.c:3:
/usr/lib/ruby/1.8/i486-linux/intern.h:218: error: expected declaration
specifiers or '...' before 'fd_set'
/usr/lib/ruby/1.8/i486-linux/intern.h:218: error: expected declaration
specifiers or '...' before 'fd_set'
/usr/lib/ruby/1.8/i486-linux/intern.h:218: error: expected declaration
specifiers or '...' before 'fd_set'
/usr/lib/ruby/1.8/i486-linux/intern.h:218: warning: 'struct timeval'
declared inside parameter list
/usr/lib/ruby/1.8/i486-linux/intern.h:218: warning: its scope is only
this definition or declaration, which is probably not what you want
/usr/lib/ruby/1.8/i486-linux/intern.h:219: warning: 'struct timeval'
declared inside parameter list
/usr/lib/ruby/1.8/i486-linux/intern.h:453: warning: parameter names
(without types) in function declaration
In file included from unicode.h:5,
from unicode.c:3:
/usr/lib/ruby/1.8/i486-linux/ruby.h:728:21: error: pthread.h: No such
file or directory
In file included from unicode.h:5,
from unicode.c:3:
/usr/lib/ruby/1.8/i486-linux/ruby.h:730: error: expected '=', ',',
';', 'asm' or '__attribute__' before 'rb_nativethread_t'
make: *** [unicode.o] Error 1


Gem files will remain installed in /var/lib/gems/1.8/gems/json-1.1.1
for inspection.
Results logged to
/var/lib/gems/1.8/gems/json-1.1.1/ext/json/ext/parser/gem_make.out


I'm using the last Ubuntu, and I'm not understanding how to install
this JSON libraries.

Someone can help me?

thanks
MArcos

 

[TerryP]

Hi Marcos,




If you're using Gutsy, there's a libjson-ruby in the repositories if
that's any help?


cheers,

I would follow my nose in search of headers and examine the makefile.

Despite ruby gems, I find using my operating systems package management
usually
works best. I also prefer pure ruby implementations where possible, because
it's
less bugger (for me) to fetch via gem. And if I was worried about
performance
I'd have waited for skipped 'scripting' languages...

Terry@Dixie$ gem search json -b
4:51

*** LOCAL GEMS ***

*** REMOTE GEMS ***
Bulk updating Gem source index for: http://gems.rubyforge.org

fjson (0.1.2, 0.1.1, 0.1.0, 0.0.9, 0.0.8, 0.0.7, 0.0.6, 0.0.5, 0.0.4, 0.0.3,
0.0.2, 0.0.1)
This library is for parsing JSON strings and unparsing ruby data
structures. This library is a fork of Florian Frank's JSON library
with key parts implemented in C for performance improvements.

json (1.1.1, 1.1.0, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0, 0.4.3, 0.4.2, 0.4.1,
0.4.0)
A JSON implementation as a Ruby extension

json_pure (1.1.1, 1.1.0, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0)
A JSON implementation in Ruby

Orbjson (0.0.4, 0.0.3, 0.0.2, 0.0.1)
Lib for creating JSON-RPC server applications.

ruby-json (1.1.2, 1.1.1)
ruby-json is a library for using JavaScript Object Notation (JSON)
under Ruby.
Terry@Dixie$
4:52