Python-style list comprehensions for Ruby
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Overrides the backtick operator without monkeypatching to provide Python style list comprehensions for Ruby.

Useful? Maybe. Cool? I think so.

build status


###List Comprehensions include Comprendo

`x for x in [1,2,3]`

=> [1, 2, 3]

###Views x*x for x in [1,2,3] => [1, 4, 9]

The view is just ruby code.

###Conditional x for x in [1, 2, 3, 4] if x%2 == 1 => [1,3]

The conditional is just ruby code too.

`x for x in [1, 2, 3, 4] unless x%2 == 1`
=> [2,4]

Seriously, go nuts.

###Variable references

@a = [3,4,5]
@z = 4
`x + @z for x in @a`
=> [7, 8, 9]

If you want to reference variables within your comprehension, they must be instance variables on your class.


gem install comprendo

#More Info

More info on Python's list comprehensions can be found in PEP 202