mirror of
https://github.com/mastodon/mastodon.git
synced 2025-10-05 16:42:47 +00:00
115 lines
3.0 KiB
Ruby
115 lines
3.0 KiB
Ruby
# frozen_string_literal: true
|
||
|
||
module Extractor
|
||
MAX_DOMAIN_LENGTH = 253
|
||
|
||
extend Twitter::TwitterText::Extractor
|
||
|
||
module_function
|
||
|
||
def extract_entities_with_indices(text, options = {}, &block)
|
||
entities = extract_urls_with_indices(text, options) +
|
||
extract_hashtags_with_indices(text, check_url_overlap: false) +
|
||
extract_mentions_or_lists_with_indices(text) +
|
||
extract_extra_uris_with_indices(text)
|
||
|
||
return [] if entities.empty?
|
||
|
||
entities = remove_overlapping_entities(entities)
|
||
entities.each(&block) if block
|
||
entities
|
||
end
|
||
|
||
def extract_mentions_or_lists_with_indices(text)
|
||
return [] unless text && Twitter::TwitterText::Regex[:at_signs].match?(text)
|
||
|
||
possible_entries = []
|
||
|
||
text.scan(Account::MENTION_RE) do |screen_name, _|
|
||
match_data = $LAST_MATCH_INFO
|
||
after = ::Regexp.last_match.post_match
|
||
|
||
unless Twitter::TwitterText::Regex[:end_mention_match].match?(after)
|
||
_, domain = screen_name.split('@')
|
||
|
||
next if domain.present? && domain.length > MAX_DOMAIN_LENGTH
|
||
|
||
start_position = match_data.char_begin(1) - 1
|
||
end_position = match_data.char_end(1)
|
||
|
||
possible_entries << {
|
||
screen_name: screen_name,
|
||
indices: [start_position, end_position],
|
||
}
|
||
end
|
||
end
|
||
|
||
if block_given?
|
||
possible_entries.each do |mention|
|
||
yield mention[:screen_name], mention[:indices].first, mention[:indices].last
|
||
end
|
||
end
|
||
|
||
possible_entries
|
||
end
|
||
|
||
def extract_hashtags_with_indices(text, _options = {})
|
||
return [] unless text&.index(/[#＃]/)
|
||
|
||
possible_entries = []
|
||
|
||
text.scan(Tag::HASHTAG_RE) do |hash_text, _|
|
||
match_data = $LAST_MATCH_INFO
|
||
start_position = match_data.char_begin(1) - 1
|
||
end_position = match_data.char_end(1)
|
||
after = ::Regexp.last_match.post_match
|
||
|
||
if after.start_with?('://')
|
||
hash_text.match(/(.+)(https?\Z)/) do |matched|
|
||
hash_text = matched[1]
|
||
end_position -= matched[2].codepoint_length
|
||
end
|
||
end
|
||
|
||
possible_entries << {
|
||
hashtag: hash_text,
|
||
indices: [start_position, end_position],
|
||
}
|
||
end
|
||
|
||
if block_given?
|
||
possible_entries.each do |tag|
|
||
yield tag[:hashtag], tag[:indices].first, tag[:indices].last
|
||
end
|
||
end
|
||
|
||
possible_entries
|
||
end
|
||
|
||
def extract_extra_uris_with_indices(text)
|
||
return [] unless text&.index(':')
|
||
|
||
possible_entries = []
|
||
|
||
text.scan(Twitter::TwitterText::Regex[:valid_extended_uri]) do
|
||
valid_uri_match_data = $LAST_MATCH_INFO
|
||
|
||
start_position = valid_uri_match_data.char_begin(3)
|
||
end_position = valid_uri_match_data.char_end(3)
|
||
|
||
possible_entries << {
|
||
url: valid_uri_match_data[3],
|
||
indices: [start_position, end_position],
|
||
}
|
||
end
|
||
|
||
if block_given?
|
||
possible_entries.each do |url|
|
||
yield url[:url], url[:indices].first, url[:indices].last
|
||
end
|
||
end
|
||
|
||
possible_entries
|
||
end
|
||
end
|