Restart parser (maybe lexer) at the previous state

[Roesner, Thomas]

Dear all,
I'd like to write a parser, that can be continued with a new input, even
if the previous input seemd to be EOF.

The background is as described below:
We have a data structure with some formating information and a 80 char
textfield. In some cases the data complete is stored in more than one
textline. I'd like to parse the first line and if the text is incomplete
the next line and so on.

In the moment I copy all possible lines of text in a char[] and start
the parser.

In all my tests the scanner (flex) and the parser seemed to be reseted
to an initial state, with the result "incomplete Syntax".

Any Ideas?

Kind Regards
Tom