mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
61 lines
2 KiB
Ruby
61 lines
2 KiB
Ruby
|
# encoding: utf-8
|
||
|
require 'iconv'
|
||
|
require 'active_support/core_ext/string/multibyte'
|
||
|
|
||
|
module ActiveSupport
|
||
|
module Inflector
|
||
|
extend self
|
||
|
|
||
|
# Replaces accented characters with their ascii equivalents.
|
||
|
def transliterate(string)
|
||
|
Iconv.iconv('ascii//ignore//translit', 'utf-8', string).to_s
|
||
|
end
|
||
|
|
||
|
if RUBY_VERSION >= '1.9'
|
||
|
undef_method :transliterate
|
||
|
def transliterate(string)
|
||
|
warn "Ruby 1.9 doesn't support Unicode normalization yet"
|
||
|
string.dup
|
||
|
end
|
||
|
|
||
|
# The iconv transliteration code doesn't function correctly
|
||
|
# on some platforms, but it's very fast where it does function.
|
||
|
elsif "foo" != (Inflector.transliterate("föö") rescue nil)
|
||
|
undef_method :transliterate
|
||
|
def transliterate(string)
|
||
|
string.mb_chars.normalize(:kd). # Decompose accented characters
|
||
|
gsub(/[^\x00-\x7F]+/, '') # Remove anything non-ASCII entirely (e.g. diacritics).
|
||
|
end
|
||
|
end
|
||
|
|
||
|
# Replaces special characters in a string so that it may be used as part of a 'pretty' URL.
|
||
|
#
|
||
|
# ==== Examples
|
||
|
#
|
||
|
# class Person
|
||
|
# def to_param
|
||
|
# "#{id}-#{name.parameterize}"
|
||
|
# end
|
||
|
# end
|
||
|
#
|
||
|
# @person = Person.find(1)
|
||
|
# # => #<Person id: 1, name: "Donald E. Knuth">
|
||
|
#
|
||
|
# <%= link_to(@person.name, person_path(@person)) %>
|
||
|
# # => <a href="/person/1-donald-e-knuth">Donald E. Knuth</a>
|
||
|
def parameterize(string, sep = '-')
|
||
|
# replace accented chars with their ascii equivalents
|
||
|
parameterized_string = transliterate(string)
|
||
|
# Turn unwanted chars into the separator
|
||
|
parameterized_string.gsub!(/[^a-z0-9\-_\+]+/i, sep)
|
||
|
unless sep.nil? || sep.empty?
|
||
|
re_sep = Regexp.escape(sep)
|
||
|
# No more than one of the separator in a row.
|
||
|
parameterized_string.gsub!(/#{re_sep}{2,}/, sep)
|
||
|
# Remove leading/trailing separator.
|
||
|
parameterized_string.gsub!(/^#{re_sep}|#{re_sep}$/i, '')
|
||
|
end
|
||
|
parameterized_string.downcase
|
||
|
end
|
||
|
end
|
||
|
end
|