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45 lines
1.6 KiB
Ruby
45 lines
1.6 KiB
Ruby
#
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# Clean up a text
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#
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class TextCleaner
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def self.title_options
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# cf. http://meta.discourse.org/t/should-we-have-auto-replace-rules-in-titles/5687
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{
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deduplicate_exclamation_marks: SiteSetting.title_prettify,
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deduplicate_question_marks: SiteSetting.title_prettify,
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replace_all_upper_case: SiteSetting.title_prettify,
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capitalize_first_letter: SiteSetting.title_prettify,
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remove_all_periods_from_the_end: SiteSetting.title_prettify,
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remove_extraneous_space: SiteSetting.title_prettify && SiteSetting.default_locale == "en",
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fixes_interior_spaces: true,
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strip_whitespaces: true
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}
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end
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def self.clean_title(title)
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TextCleaner.clean(title, TextCleaner.title_options)
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end
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def self.clean(text, opts = {})
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# Replace !!!!! with a single !
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text.gsub!(/!+/, '!') if opts[:deduplicate_exclamation_marks]
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# Replace ????? with a single ?
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text.gsub!(/\?+/, '?') if opts[:deduplicate_question_marks]
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# Replace all-caps text with regular case letters
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text.tr!('A-Z', 'a-z') if opts[:replace_all_upper_case] && (text =~ /[A-Z]+/) && (text == text.upcase)
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# Capitalize first letter
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text.sub!(/\A([a-z])/) { |first| first.capitalize } if opts[:capitalize_first_letter]
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# Remove unnecessary periods at the end
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text.sub!(/([^.])\.+(\s*)\z/, '\1\2') if opts[:remove_all_periods_from_the_end]
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# Remove extraneous space before the end punctuation
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text.sub!(/\s+([!?]\s*)\z/, '\1') if opts[:remove_extraneous_space]
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# Fixes interior spaces
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text.gsub!(/ +/, ' ') if opts[:fixes_interior_spaces]
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# Strip whitespaces
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text.strip! if opts[:strip_whitespaces]
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text
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end
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end
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