*** lib/hikidoc.rb.orig	Sat Aug  8 03:10:47 2009
--- lib/hikidoc.rb	Mon Aug 10 22:26:39 2009
***************
*** 58,63 ****
--- 58,64 ----
      @options = default_options.merge(options)
      @header_re = nil
      @level = options[:level] || 1
+     @plugin_blocks = []
      @plugin_syntax = options[:plugin_syntax] || method(:valid_plugin_syntax?)
    end
  
***************
*** 96,102 ****
    def escape_plugin_blocks(text)
      s = StringScanner.new(text)
      buf = ""
-     @plugin_blocks = []
      while chunk = s.scan_until(/\{\{/)
        tail = chunk[-2, 2]
        chunk[-2, 2] = ""
--- 97,102 ----
***************
*** 328,337 ****
  
    INDENTED_PRE_RE = /\A[ \t]/
  
    def compile_indented_pre(f)
!     lines = f.span(INDENTED_PRE_RE)\
!         .map {|line| rstrip(line.sub(INDENTED_PRE_RE, "")) }
!     text = restore_plugin_block(lines.join("\n"))
      @output.preformatted(@output.text(text))
    end
  
--- 328,359 ----
  
    INDENTED_PRE_RE = /\A[ \t]/
  
+   def backtrack(str, f)
+     escape_plugin_blocks(str) { |escaped|
+       escaped.split(/\r?\n/)\
+         .reverse_each { |l| f.ungets(l) }
+     }
+   end
+ 
    def compile_indented_pre(f)
!     text = ""
!     rev = ""
!     inpre = true
!     while inpre && f.next?
!       restore_plugin_block(f.gets).each_line do |l|
!         if inpre
!           if l.match(INDENTED_PRE_RE)
!             text << rstrip(l.sub(INDENTED_PRE_RE, "")) + "\n"
!             next
!           else
!             inpre = false
!           end
!         end
!         rev << l
!       end
!     end
!     text.chomp!
!     backtrack(rev, f) unless rev.empty?
      @output.preformatted(@output.text(text))
    end
  
***************
*** 340,347 ****
  
    def compile_block_pre(f)
      m = BLOCK_PRE_OPEN_RE.match(f.gets) or raise UnexpectedError, "must not happen"
!     str = restore_plugin_block(f.break(BLOCK_PRE_CLOSE_RE).join.chomp)
!     f.gets
      @output.block_preformatted(str, m[1])
    end
  
--- 362,385 ----
  
    def compile_block_pre(f)
      m = BLOCK_PRE_OPEN_RE.match(f.gets) or raise UnexpectedError, "must not happen"
!     str = ""
!     rev = ""
!     inpre = true
!     while inpre && f.next?
!       restore_plugin_block(f.gets).each_line do |l|
!         if inpre
!           if l.match(BLOCK_PRE_CLOSE_RE)
!             inpre = false
!           else
!             str << l
!           end
!         else
!           rev << l
!         end
!       end
!     end
!     str.chomp!
!     backtrack(rev, f) unless rev.empty?
      @output.block_preformatted(str, m[1])
    end