Simple pattern matching

ruby-talk
1

Hi group.

Sorry for newbie question. Given the line like

node: { title: "15597629" label: "up[0,18 p:-2270.125]" }

How can I parse the above string into "15597629" and "up[0,18
p:-2270.125]"? There are numbers in the first "..." and a-z, :, [, and
] in the second "..." part.

Thanks in advance.

2

'node: { title: "15597629" label: "up[0,18 p:-2270.125]" }' =~
%r{(".*?").*?(".*?")}

seems a reasonable way to do it. Move the quotes outside the () if you do
not want them excluded
from the results.
Access the data with

$1, $2 or Regexp.last_match[1], ...[2]

Hope that helps
Robert

P.S.
Regexp questions are never newbee :wink:

···

On 3/27/06, Minkoo Seo <minkoo.seo@gmail.com> wrote:

Hi group.

Sorry for newbie question. Given the line like

'node: { title: "15597629" label: "up[0,18 p:-2270.125]" }'

How can I parse the above string into "15597629" and "up[0,18
p:-2270.125]"? There are numbers in the first "..." and a-z, :, [, and
] in the second "..." part.

Thanks in advance.

--
Deux choses sont infinies : l'univers et la bêtise humaine ; en ce qui
concerne l'univers, je n'en ai pas acquis la certitude absolue.

- Albert Einstein

3

Here are a couple of ways:

s = 'node: { title: "15597629" label: "up[0,18 p:-2270.125]" }'
# => "node: { title: \"15597629\" label: \"up[0,18 p:-2270.125]\" }"

s =~ /title:\s("[^"]*")\slabel:\s("[^"]*")/
# => 8

$1
# => "\"15597629\""

$2
# => "\"up[0,18 p:-2270.125]\""

s.scan(/"[^"]*"/)
# => ["\"15597629\"", "\"up[0,18 p:-2270.125]\""]

···

On Tue, 2006-03-28 at 01:58 +0900, Minkoo Seo wrote:

Hi group.

Sorry for newbie question. Given the line like

node: { title: "15597629" label: "up[0,18 p:-2270.125]" }

How can I parse the above string into "15597629" and "up[0,18
p:-2270.125]"? There are numbers in the first "..." and a-z, :, [, and
] in the second "..." part.

--
Ross Bamford - rosco@roscopeco.REMOVE.co.uk

4

Minkoo Seo wrote:

Hi group.

Sorry for newbie question. Given the line like

node: { title: "15597629" label: "up[0,18 p:-2270.125]" }

How can I parse the above string into "15597629" and "up[0,18
p:-2270.125]"? There are numbers in the first "..." and a-z, :, [, and
] in the second "..." part.

Thanks in advance.

'node: { title: "15597629" label: "up[0,18 p:-2270.125]" }'.
split('"').values_at(1,3)

=> ["15597629", "up[0,18 p:-2270.125]"]

5

Minkoo Seo wrote:

Sorry for newbie question. Given the line like

node: { title: "15597629" label: "up[0,18 p:-2270.125]" }

How can I parse the above string into "15597629" and "up[0,18
p:-2270.125]"? There are numbers in the first "..." and a-z, :, [, and
] in the second "..." part.
  

  >> str = 'node: { title: "15597629" label: "up[0,18 p:-2270.125]" }'
  >> node = YAML.load( str.sub(/"[^"]+"/, '\0,') )
  >> node['title']
  => "15597629"
  >> node['label']
  => "up[0,18 p:-2270.125]"

I don't know if it's helpful, but it's at least kind of striking.

_why