2007-08-07 Frank Ch. Eigler <fche@redhat.com>

	PR 4846
	* parse.cxx (input_put): New function, sort of like stdio ungetc.
	(input_get): Skip cursor position changing for input_put strings.
	(scan): Rework $.../@... substitution into character pasting.
	* parse.h: Corresponding changes.
	* util.h (lex_cast_qstring): Octal-quote unprintable characters.
	* stap.1.in, NEWS: Document new behaviour.

2007-08-07  Frank Ch. Eigler  <fche@redhat.com>

	PR 4846
	* parseko/preprocess13.stp, parseok/nineteen.stp,
	semok/twentyfive.stp: New tests.

1 files changed, 3 insertions, 0 deletions

diff --git a/parse.h b/parse.h
index ba90374d..c81559dd 100644
--- a/parse.h
+++ b/parse.h
@@ -74,10 +74,13 @@ public:
 
 private:
   int input_get ();
+  void input_put (int);
+  void input_put (const std::string&);
   int input_peek (unsigned n=0);
   std::istream& input;
   std::string input_name;
   std::vector<int> lookahead;
+  unsigned cursor_suspend_count;
   unsigned cursor_line;
   unsigned cursor_column;
   systemtap_session& session;