46 lines
1.2 KiB
Ruby
46 lines
1.2 KiB
Ruby
# encoding: utf-8
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module Slug
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CHAR_FILTER_REGEXP = /[:\/\?#\[\]@!\$&'\(\)\*\+,;=_\.~%\\`^\s|\{\}"<>]+/ # :/?#[]@!$&'()*+,;=_.~%\`^|{}"<>
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def self.for(string, default = 'topic')
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slug =
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case (SiteSetting.slug_generation_method || :ascii).to_sym
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when :ascii then self.ascii_generator(string)
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when :encoded then self.encoded_generator(string)
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when :none then self.none_generator(string)
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end
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# Reject slugs that only contain numbers, because they would be indistinguishable from id's.
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slug = (slug =~ /[^\d]/ ? slug : '')
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slug.blank? ? default : slug
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end
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def self.sanitize(string)
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self.encoded_generator(string)
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end
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private
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def self.ascii_generator(string)
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string.tr("'", "")
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.parameterize
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.tr("_", "-")
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end
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def self.encoded_generator(string)
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# This generator will sanitize almost all special characters,
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# including reserved characters from RFC3986.
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# See also URI::REGEXP::PATTERN.
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string.strip
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.gsub(/\s+/, '-')
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.gsub(CHAR_FILTER_REGEXP, '')
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.gsub(/\A-+|-+\z/, '') # remove possible trailing and preceding dashes
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.squeeze('-') # squeeze continuous dashes to prettify slug
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end
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def self.none_generator(string)
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''
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end
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end
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