Would it be better to put it on rubyforge after renaming?
Also, is it best rubygems? Is this the ruby equivalent of cpan
for perl?
···
--- Jamis Buck <jamis@37signals.com> wrote:
Very nice! One quibble: any chance you could change the name?
http://rubyforge.org/projects/syntax
Might get confusing if someone wants to install both libs.
- Jamis
On Apr 15, 2005, at 10:25 PM, Eric Mahurin wrote:
> Here is my first contribution to Ruby:
>
> http://raa.ruby-lang.org/project/syntax/
>
> There is still plenty missing in here and it is a work in
> progress, but I think it is ready for some of you to try it
out
> if you like it.
>
> To get an idea of what this is, there is a simple
expression
> evaluator example below. This is pure Ruby code - no yacc
type
> compiling necessary. That's what I love about it.
>
> Eric
>
>
> #!/usr/bin/ruby -d
>
> require "syntax"
>
> NULL = Syntax::NULL
> INF = +1.0/0
> LOOP0 = (0..INF)
> LOOP1 = (1..INF)
>
> int = (("0".."9")*LOOP1).qualify { |m| m.to_s.to_i }
>
> number = (
> int +
> (("."+int)|NULL) +
> ((("e"|"E")+("+"|"-"|NULL)+int)|NULL)
> ).qualify { |m|
> if (m.length>1)
> m.to_s.to_f
> else
> m[0]
> end
> }
>
> ws = ((" "|"\t"|"\n")*LOOP0).qualify { TRUE } # skipped
with
> TRUE
>
> expr = Syntax::Pass.new # need to predefine object for
> recursion
>
> atom =
> (number+ws).qualify{|m|m[0]} |
> ("(" + expr + ")" + ws).qualify{|m|m[1]}
>
> term = (
> atom + ( ("*"|"/"|"%") + ws + atom )*LOOP0
> ).qualify { |m|
> product = m[0]
> m[1].each { |m|
> case m[0]
> when "*" then product *= m[1]
> when "/" then product /= m[1]
> when "%" then product %= m[1]
> end
> }
> product
> }
>
> expr << (
> ws + term + ( ("+"|"-") + ws + term )*LOOP0
> ).qualify { |m|
> sum = m[0]
> m[1].each { |m|
> case m[0]
> when "+" then sum += m[1]
> when "-" then sum -= m[1]
> end
> }
> sum
> }
>
> while (gets)
> p(expr===RandomAccessStream.new($_))
> end
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Would it be better to put it on rubyforge after renaming?
That's not necessary, but it's nice if you need a CVS repository, or a home page, or a wiki for your project. It also gives you bug and feature request tracking, mailing lists, forums, and more. If any of that sounds appealing, you may want to apply for a new project there. If you have those things all hosted elsewhere, or you don't want/need them, then you probably won't gain anything by a RubyForge project (except, perhaps, better project visibility).
Also, is it best rubygems? Is this the ruby equivalent of cpan
for perl?
Currently RubyGems is the de facto standard for Ruby libraries. There really isn't a CPAN equivalent for Ruby, yet--we've got RAA and RubyForge, with RubyGems as the package manager. (Another nice thing about RubyForge--when you add a gem file to your project file list, it will automatically be added to the RubyGems package list.)
- Jamis
···
On Apr 16, 2005, at 8:23 AM, Eric Mahurin wrote:
--- Jamis Buck <jamis@37signals.com> wrote:
Very nice! One quibble: any chance you could change the name?
http://rubyforge.org/projects/syntax
Might get confusing if someone wants to install both libs.
- Jamis
On Apr 15, 2005, at 10:25 PM, Eric Mahurin wrote:
Here is my first contribution to Ruby:
http://raa.ruby-lang.org/project/syntax/
There is still plenty missing in here and it is a work in
progress, but I think it is ready for some of you to try it
out
if you like it.
To get an idea of what this is, there is a simple
expression
evaluator example below. This is pure Ruby code - no yacc
type
compiling necessary. That's what I love about it.
Eric
#!/usr/bin/ruby -d
require "syntax"
NULL = Syntax::NULL
INF = +1.0/0
LOOP0 = (0..INF)
LOOP1 = (1..INF)
int = (("0".."9")*LOOP1).qualify { |m| m.to_s.to_i }
number = (
int +
(("."+int)|NULL) +
((("e"|"E")+("+"|"-"|NULL)+int)|NULL)
).qualify { |m|
if (m.length>1)
m.to_s.to_f
else
m[0]
end
}
ws = ((" "|"\t"|"\n")*LOOP0).qualify { TRUE } # skipped
with
TRUE
expr = Syntax::Pass.new # need to predefine object for
recursion
atom =
(number+ws).qualify{|m|m[0]} |
("(" + expr + ")" + ws).qualify{|m|m[1]}
term = (
atom + ( ("*"|"/"|"%") + ws + atom )*LOOP0
).qualify { |m|
product = m[0]
m[1].each { |m|
case m[0]
when "*" then product *= m[1]
when "/" then product /= m[1]
when "%" then product %= m[1]
end
}
product
}
expr << (
ws + term + ( ("+"|"-") + ws + term )*LOOP0
).qualify { |m|
sum = m[0]
m[1].each { |m|
case m[0]
when "+" then sum += m[1]
when "-" then sum -= m[1]
end
}
sum
}
while (gets)
p(expr===RandomAccessStream.new($_))
end
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