convert "one" to 1?

rubyonrails-talk
1

Hi

Does anyone know of a quick way to convert human (string) numbers to integers?

I doesnt need to be too fancy - the simple integers up to ten ( 10 :slight_smile: will do.

Id prefer not to install a plugin or gem - so the solution is not native to rails the possibly a '.collect' type algorithm?

Thanks for reading this!

Pieter

2

Hi

Does anyone know of a quick way to convert human (string) numbers to

integers?

I doesnt need to be too fancy - the simple integers up to ten ( 10 :slight_smile:

will do.

Id prefer not to install a plugin or gem - so the solution is not native

to rails the possibly a ‘.collect’ type algorithm?

hmm… i don’t know of any but i’d create a method that goes like

def num_word_to_int(string

[‘zero’,‘one’,‘two’,‘three’,‘four’,‘five’,‘six’,‘seven’,‘eight’,‘nine’,‘ten’].rindex string

end

3

Hi Jim - thanks - I came up with something similar - but using .index. Cant seem to figure out the different?

Yours is more elegant with the leading 'zero' though. Thanks!

Pieter

4

Hi Jim - thanks - I came up with something similar - but using .index.

Cant seem to figure out the different?

Yours is more elegant with the leading ‘zero’ though. Thanks!

Thanks. glad to be of help :slight_smile:

5

What's wrong with Hash ?

{ "one" => 1 "two" => 2 ... }

You can generate such hash easily and make it a constant.

WordToInteger["one"] => 1

Robert Pankowecki

6

Even better!

Thanks guys