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Contents
module MaRuKu::In::Markdown::BlockLevelParser # This represents a source of lines that can be consumed. # # It is the twin of CharSource. # class LineSource attr_reader :parent def initialize(lines, parent=nil, parent_offset=nil) raise "NIL lines? " unless lines @lines = lines.map {|l| l.kind_of?(MaRuKu::MDLine) ? l : MaRuKu::MDLine.new(l) } @lines_index = 0 @parent = parent @parent_offset = parent_offset end def cur_line @lines[@lines_index] end def next_line @lines[@lines_index + 1] end def shift_line raise "Over the rainbow" if @lines_index >= @lines.size l = @lines[@lines_index] @lines_index += 1 l end def ignore_line raise "Over the rainbow" if @lines_index >= @lines.size @lines_index += 1 end def describe s = "At line #{original_line_number(@lines_index)}\n" context = 3 # lines from = [@lines_index - context, 0].max to = [@lines_index + context, @lines.size - 1].min from.upto(to) do |i| prefix = (i == @lines_index) ? '--> ' : ' '; l = @lines[i] s += "%10s %4s|%s" % [@lines[i].md_type.to_s, prefix, l] s += "|\n" end s end def original_line_number(index) if @parent index + @parent.original_line_number(@parent_offset) else 1 + index end end def cur_index @lines_index end # Returns the type of next line as a string # breaks at first :definition def tell_me_the_future s = "" num_e = 0 @lines_index.upto(@lines.size - 1) do |i| c = case @lines[i].md_type when :text; "t" when :empty; num_e += 1; "e" when :definition; "d" else "o" end s << c break if c == "d" or num_e > 1 end s end end # linesource end
Version data entries
5 entries across 5 versions & 1 rubygems