65 lines
1.7 KiB
Ruby
65 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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module Extractor
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extend Twitter::Extractor
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module_function
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# :yields: username, list_slug, start, end
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def extract_mentions_or_lists_with_indices(text)
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return [] unless Twitter::Regex[:at_signs].match?(text)
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possible_entries = []
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text.to_s.scan(Account::MENTION_RE) do |screen_name, _|
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match_data = $LAST_MATCH_INFO
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after = $'
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unless Twitter::Regex[:end_mention_match].match?(after)
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start_position = match_data.char_begin(1) - 1
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end_position = match_data.char_end(1)
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possible_entries << {
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screen_name: screen_name,
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indices: [start_position, end_position],
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}
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end
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end
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if block_given?
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possible_entries.each do |mention|
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yield mention[:screen_name], mention[:indices].first, mention[:indices].last
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end
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end
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possible_entries
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end
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def extract_hashtags_with_indices(text, **)
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return [] unless /#/.match?(text)
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tags = []
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text.scan(Tag::HASHTAG_RE) do |hash_text, _|
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match_data = $LAST_MATCH_INFO
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start_position = match_data.char_begin(1) - 1
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end_position = match_data.char_end(1)
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after = $'
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if %r{\A://}.match?(after)
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hash_text.match(/(.+)(https?\Z)/) do |matched|
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hash_text = matched[1]
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end_position -= matched[2].char_length
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end
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end
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tags << {
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hashtag: hash_text,
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indices: [start_position, end_position],
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}
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end
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tags.each { |tag| yield tag[:hashtag], tag[:indices].first, tag[:indices].last } if block_given?
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tags
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end
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def extract_cashtags_with_indices(_text)
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[] # always returns empty array
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end
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end
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