Method: URI.regexp(schemes = nil)

Contents:

Synopsis
Args
Description
Usage

Synopsis

URI::regexp([match_schemes])

Args

match_schemes: Array of schemes. If given, resulting regexp matches to URIs whose scheme is one of the match_schemes.

Description

Returns a Regexp object which matches to URI-like strings. The Regexp object returned by this method includes arbitrary number of capture group (parentheses). Never rely on it’s number.

Usage

require 'uri'

# extract first URI from html_string
html_string.slice(URI.regexp)

# remove ftp URIs
html_string.sub(URI.regexp(['ftp'])

# You should not rely on the number of parentheses
html_string.scan(URI.regexp) do |*matches|
  p $&
end

Source Code

# File uri/common.rb, line 593
def self.regexp(schemes = nil)
  unless schemes
    ABS_URI_REF
  else
    /(?=#{Regexp.union(*schemes)}:)#{PATTERN::X_ABS_URI}/xn
  end
end