Sha256: 13500f739d04c34e17b1da9f4cba82052b62531af1a8a1712a7007005cd84dd8
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Versions: 10
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Stored size: 1.27 KB
Contents
require "attentive/token"
module Attentive
module Tokens
class Regexp < Token
attr_reader :regexp
def initialize(string, pos)
@regexp = ::Regexp.compile("^#{string}")
super pos
end
def ==(other)
self.class == other.class && self.regexp == other.regexp
end
def matches?(cursor)
# Compare the original, untokenized, message to the regular expression
match_data = regexp.match(cursor.to_s)
return false unless match_data
# Find the first token following the match
new_character_index = cursor.offset + match_data.to_s.length
cursor_pos = cursor.tokens.index { |token| token.begin >= new_character_index }
cursor_pos = cursor.tokens.length unless cursor_pos
# If the match ends in the middle of a token, treat it as a mismatch
match_end_token = cursor.tokens[cursor_pos - 1]
return false if match_end_token.begin + match_end_token.length > new_character_index
# Advance the cursor to the first token after the regexp match
cursor.advance cursor_pos - cursor.pos
# Return the MatchData as a hash
Hash[match_data.names.zip(match_data.captures)]
end
def to_s
regexp.inspect
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems