# File lib/asciidoctor/parser.rb, line 1653 def self.setext_section_title? line1, line2 if (level = SETEXT_SECTION_LEVELS[line2_ch1 = line2.chr]) && line2_ch1 * (line2_len = line2.length) == line2 && SetextSectionTitleRx.match?(line1) && (line_length(line1) - line2_len).abs < 2 level end end