# frozen_string_literal: true module RuboCop module Cop # Help methods for determining if a line is too long. module LineLengthHelp private def ignore_cop_directives? config.for_cop('Layout/LineLength')['IgnoreCopDirectives'] end def directive_on_source_line?(line_index) source_line_number = line_index + processed_source.buffer.first_line comment = processed_source.comment_at_line(source_line_number) return false unless comment comment.text.match?(CommentConfig::COMMENT_DIRECTIVE_REGEXP) end def allow_uri? config.for_cop('Layout/LineLength')['AllowURI'] end def allowed_uri_position?(line, uri_range) uri_range.begin < max_line_length && (uri_range.end == line_length(line) || uri_range.end == line_length(line) - 1) end def line_length(line) line.length + indentation_difference(line) end def find_excessive_uri_range(line) last_uri_match = match_uris(line).last return nil unless last_uri_match begin_position, end_position = last_uri_match.offset(0).map do |pos| pos + indentation_difference(line) end return nil if begin_position < max_line_length && end_position < max_line_length begin_position...end_position end def match_uris(string) matches = [] string.scan(uri_regexp) do matches << $LAST_MATCH_INFO if valid_uri?($LAST_MATCH_INFO[0]) end matches end def indentation_difference(line) return 0 unless tab_indentation_width line.match(/^\t*/)[0].size * (tab_indentation_width - 1) end def tab_indentation_width config.for_cop('Layout/IndentationStyle')['IndentationWidth'] || config.for_cop('Layout/IndentationWidth')['Width'] end def uri_regexp @uri_regexp ||= URI::DEFAULT_PARSER .make_regexp(config.for_cop('Layout/LineLength')['URISchemes']) end def valid_uri?(uri_ish_string) URI.parse(uri_ish_string) true rescue URI::InvalidURIError, NoMethodError false end def line_length_without_directive(line) before_comment, = line.split(CommentConfig::COMMENT_DIRECTIVE_REGEXP) before_comment.rstrip.length end end end end