CODEWITHSUNDEEP
rubystringtext-parsing
cbmeeks
cbmeeks

Reputation: 11420

How do I grab pieces of text from a string in Ruby?

If a user submits a string like:

My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!

I want to have the following arrays/strings:

text = "My living room plans"
tags = ['plans', 'livingroom', 'design']
people = ['cbmeeks', 'moe', 'larry']
description = "this is cool!"

Every string submitted will start with the text piece. No @, -, etc. I don't have to worry about a user starting with a tag or person. The breakdown should look something like this, in any order except TEXT is always first.

TEXT [-description] [#tags] [@people]

EDIT I can't seem to figure out how to grab them correctly. For example:

a = "My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!"

/#\w+/.match(a).to_a
#=> ["#plans"] -- only grabs first one

Upvotes: 2

Views: 105

Answers (3)

the Tin Man
the Tin Man

Reputation: 160621

str = 'My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!'

text = str[/^([^#\@]+)/, 1].strip # => "My living room plans"
str.sub!(text, '') # => " #plans #livingroom @cbmeeks #design @moe @larry -this is cool!"

tags        = str.scan( /#([a-z0-9]+)/ ).flatten # => ["plans", "livingroom", "design"]
people      = str.scan( /@([a-z0-9]+)/ ).flatten # => ["cbmeeks", "moe", "larry"]
description = str.scan( /-(.+)/        ).flatten # => ["this is cool!"]

Upvotes: 0

Dylan Markow
Dylan Markow

Reputation: 124469

This will automatically remove the #, @, -, and will match in any order:

string = "My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!"
text = string[/^(.*?)+(?=\s[@#-])/]
tags = string.scan /(?<=#)\w+/
people = string.scan /(?<=@)\w+/
description = string[/(?<=-)(.*?)+?(?=($|\s[@#]))/]

Upvotes: 4

ennuikiller
ennuikiller

Reputation: 46985

input = "My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!"
text = input.match('^(.*?)#')[1]
tags = input.scan(/#(.*?) /)
people = input.scan(/@(.*?) /)
description = input.match('-(.*?)$')[1]

Upvotes: 1

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