module Abbreviato
Constants
- DEFAULT_OPTIONS
- VERSION
Public Class Methods
truncate(source = '', user_options = {})
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Truncates the source XML string and returns the truncated XML and a boolean flag indicating whether any truncation took place. It will keep a valid XML structure and insert a tail text indicating the position where content was removed (…).
@param [String] source the XML source to truncate @param [Hash] user_options truncation options @option user_options [Integer] :max_length Maximum length @option user_options [Boolean] :truncate_incomplete_row Indicates whether or
not to truncate the last row in a table if truncation due to max_length occurs in the middle of a row.
@option user_options [String] :tail Text to append when the truncation happens @option user_options [Boolean] :fragment Indicates whether the document to be truncated is an HTML fragment
or an entire document (with `HTML`, `HEAD` & `BODY` tags). Setting to true prevents automatic addition of these tags if they are missing. Defaults to `true`.
@return [[String] the truncated string, [boolean] whether the string was truncated]
# File lib/abbreviato/abbreviato.rb, line 25 def self.truncate(source = '', user_options = {}) return [nil, false] if source.nil? truncated_sax_document = TruncatedSaxDocument.new(DEFAULT_OPTIONS.merge(user_options)) parser = Nokogiri::HTML::SAX::Parser.new(truncated_sax_document) parser.parse(source) { |context| context.replace_entities = false } if truncated_sax_document.truncated && user_options[:truncate_incomplete_row] parsed_results = [truncated_sax_document.truncated_string.strip, truncated_sax_document.truncated] html_fragment = Nokogiri::HTML.fragment(truncated_sax_document.truncated_string.strip) return parsed_results if html_fragment.nil? last_table_in_doc = html_fragment.xpath('.//table').last return parsed_results unless last_table_in_doc first_row = last_table_in_doc.xpath('.//tr').first return parsed_results unless first_row cols_in_first_row = first_row.xpath('.//td').length return parsed_results unless cols_in_first_row.positive? last_table_in_doc.xpath('.//tr').each do |row| row.remove if row.xpath('.//td').length != cols_in_first_row end return [html_fragment.to_html, truncated_sax_document.truncated] end [truncated_sax_document.truncated_string.strip, truncated_sax_document.truncated] end