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I have to capture by means of regexp the content between '<' and '>'

as instance:

str = 'anystring<hour>anystring<min>anystring<sec>anystr ing'
I need the array['hour','min,'sec']

I have written the regexp: /(<([^<>]+)>)+/
and I have tested it in rubular.com site (It work !)

I have run it in irb:
>> /(<([^<>]+)>)+/.match('anystring<hour>anystring<min>anystring<sec >anystring')
=> #<MatchData "<hour>" 1:"<hour>" 2:"hour">
>>
As you can see match method return just the first match in MatchData obj

Do you know why ?

thank you,
Alessandro
--
Posted via http://www.ruby-forum.com/.

2009/10/28 Ale Ds <>:
> I have to capture by means of regexp the content between '<' and '>'
>
> as instance:
>
> str = 'anystring<hour>anystring<min>anystring<sec>anystr ing'
> I need the array['hour','min,'sec']
>
> I have written the regexp: /(<([^<>]+)>)+/
> and I have tested it in rubular.com site (It work !)

The "+" at the end is superfluous because this would match multiple
concatenated sequences like <xx><yyy> which you want as separate
items.

> I have run it in irb:
>>> /(<([^<>]+)>)+/.match('anystring<hour>anystring<min>anystring<sec >anystring')
> => #<MatchData "<hour>" 1:"<hour>" 2:"hour">
>>>
> As you can see match method return just the first match in MatchData obj
>
> Do you know why ?

That's the difference between #match and #scan. You want scan in your code.

irb(main):001:0> str = 'anystring<hour>anystring<min>anystring<sec>anystr ing'
=> "anystring<hour>anystring<min>anystring<sec>anystr ing"
irb(main):002:0> str.scan /<([^>]+)>/
=> [["hour"], ["min"], ["sec"]]
irb(main):003:0> str.scan /<([^>]+)>/ do |m| p m end
["hour"]
["min"]
["sec"]
=> "anystring<hour>anystring<min>anystring<sec>anystr ing"
irb(main):004:0> str.scan /<([^>]+)>/ do |m,| p m end
"hour"
"min"
"sec"
=> "anystring<hour>anystring<min>anystring<sec>anystr ing"

Kind regards

robert

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

On Oct 28, 10:12*am, Ale Ds <alexd...@gmail.com> wrote:
> I have to capture by means of regexp the content between '<' and '>'
>
> as instance:
>
> str = 'anystring<hour>anystring<min>anystring<sec>anystr ing'
> I need the array['hour','min,'sec']
>
> I have written the regexp: /(<([^<>]+)>)+/
> and I have tested it in rubular.com site (It work !)
>
> I have run it in irb:>> /(<([^<>]+)>)+/.match('anystring<hour>anystring<min>anystring<sec >anystring')
>
> => #<MatchData "<hour>" 1:"<hour>" 2:"hour">
>
> As you can see match method return just the first match in MatchData obj
>
> Do you know why ?
>
> thank you,
> Alessandro
> --
> Posted viahttp://www.ruby-forum.com/.

Alessandro,

You'll want the String#scan method (http://www.ruby-doc.org/core/
classes/String.html#M000812).

015:0> regexp = /<([^<>]+)>/
=> /<([^<>]+)>/
016:0> str = 'anystring<hour>anystring<min>anystring<sec>anystr ing'
=> "anystring<hour>anystring<min>anystring<sec>anystr ing"
017:0> str.scan(regexp)
=> [["hour"], ["min"], ["sec"]]

HTH,
Chris

> The "+" at the end is superfluous because this would match multiple
> concatenated sequences like <xx><yyy> which you want as separate
> items.
...
I agree with you

>
>> I have run it in irb:
>>>> /(<([^<>]+)>)+/.match('anystring<hour>anystring<min>anystring<sec >anystring')
>> => #<MatchData "<hour>" 1:"<hour>" 2:"hour">
>>>>
>> As you can see match method return just the first match in MatchData obj
>>
>> Do you know why ?
>
> That's the difference between #match and #scan. You want scan in your
> code.
...

yes, scan works !
thanks a lot,
Alessandro
--
Posted via http://www.ruby-forum.com/.

> You'll want the String#scan method (http://www.ruby-doc.org/core/
> classes/String.html#M000812).
Yes, at first time I didn't find scan method because I searched it in
Match obj (instead of String obj)

thank you
Alessandro
--
Posted via http://www.ruby-forum.com/.