132: def tabs
133: line = self
134: @tabs ||= precompiler.instance_eval do
135: break 0 if line.text.empty? || !(whitespace = line.full[/^\s+/])
136:
137: if @indentation.nil?
138: @indentation = whitespace
139:
140: if @indentation.include?(?\s) && @indentation.include?(?\t)
141: raise SyntaxError.new("Indentation can't use both tabs and spaces.", line.index)
142: end
143:
144: @flat_spaces = @indentation * @template_tabs if flat?
145: break 1
146: end
147:
148: tabs = whitespace.length / @indentation.length
149: break tabs if whitespace == @indentation * tabs
150: break @template_tabs if flat? && whitespace =~ /^#{@indentation * @template_tabs}/
151:
152: raise SyntaxError.new("Inconsistent indentation: \#{Haml::Shared.human_indentation whitespace, true} used for indentation,\nbut the rest of the document was indented using \#{Haml::Shared.human_indentation @indentation}.\n".strip.gsub("\n", ' '), line.index)
153: end
154: end