Splitting string to hash

Ruby
1

I have a strings like the following:
s1- “[1] Hello [2] bye”
s2- “[1] Hello [2] bye [2:1] continue [2] more”

I want to convert them to hashes like
h1- {1 => “Hello”, 2 => “bye”}
h2- {1 => “Hello”, 2 => “bye”, “2:1” => “continue”, “2:2” => more"}

Is there an easy Ruby way to do this?
Thanks for the help
Brian

2

On Aug 31, 2006, at 9:38 AM, Brian N. wrote:

s2- “[1] Hello [2] bye [2:1] continue [2] more”

h2- {1 => “Hello”, 2 => “bye”, “2:1” => “continue”, “2:2” => more"}

I assume more is missing a quote there.

Also, how was the 2:2 key determined?

James Edward G. II

3

Brian N. wrote:

I have a strings like the following:
s1- “[1] Hello [2] bye”
s2- “[1] Hello [2] bye [2:1] continue [2] more”

I want to convert them to hashes like
h1- {1 => “Hello”, 2 => “bye”}
h2- {1 => “Hello”, 2 => “bye”, “2:1” => “continue”, “2:2” => more"}

Is there an easy Ruby way to do this?
Thanks for the help
Brian

Assuming that James is correct in that :2 is missing from the second
string, this works:

h2 = Hash[*s2.scan(/[([^[]]+)] (\w+)/).flatten]

(I’m starting to really like Ruby.)

In case that’s not clear, scan uses a regex to provide an array of
2-element arrays from the text. Then flatten makes it into a single
array, then the * turns it into a list of just values, instead of an
array. Then Hash[] turns each 2 values into a hash.

4

William C. wrote:

Brian N. wrote:

I have a strings like the following:
s1- “[1] Hello [2] bye”
s2- “[1] Hello [2] bye [2:1] continue [2] more”

I want to convert them to hashes like
h1- {1 => “Hello”, 2 => “bye”}
h2- {1 => “Hello”, 2 => “bye”, “2:1” => “continue”, “2:2” => more"}

Is there an easy Ruby way to do this?
Thanks for the help
Brian

Assuming that James is correct in that :2 is missing from the second
string, this works:

h2 = Hash[*s2.scan(/[([^[]]+)] (\w+)/).flatten]

(I’m starting to really like Ruby.)

In case that’s not clear, scan uses a regex to provide an array of
2-element arrays from the text. Then flatten makes it into a single
array, then the * turns it into a list of just values, instead of an
array. Then Hash[] turns each 2 values into a hash.

Actually the original was correct - the second 2 should have a key of
2:2 even though it only appears in the original string as 2 (since it
follows a 2:1, it is assumed that any number after it would be 2:x. If
there was a 3:1 sometime later, then the next two would have a key of
3:2)

s2- “[1] Hello [2] bye [2:1] continue [2] more”

Thanks for the help
Brian

5

On 8/31/06, Brian N. [email protected] wrote:

I have a strings like the following:
s1- “[1] Hello [2] bye”
s2- “[1] Hello [2] bye [2:1] continue [2] more”

I want to convert them to hashes like
h1- {1 => “Hello”, 2 => “bye”}
h2- {1 => “Hello”, 2 => “bye”, “2:1” => “continue”, “2:2” => more"}

Is there an easy Ruby way to do this?

Brian-

Your problem is somewhat underspecified; with more examples and info,
someone might be able to help better. Some important questions:

  • may the phrases include spaces?
  • can there be more than two levels?
  • in your examples above, must the frist key be 1, or could it also be
    “1”? Or perhaps “1:0”?
  • perhaps some more background on the use case would help as well.

Good luck!

-Alex