lex - how to get current file position of parser file

Hello,


I used flex, and bison under Linux. But how can I handle multiple
input files? When I follow the examples of the documentation, I fail
to handle tokens after include file.


Example:


PRINT "Before"
SET PROCEDURE TO testproc
PRINT "After"


this is a abstract language, which does (should) open a file called
"testproc".


But I can not handle line 3.
I try to "ftell" the position after testproc,
but get the size of the parser file.


So, now I have no glue, how to fix that. It would be great, if
someone have a idea, and maybe a short code snippet.


Thanks
Jens
[Flex buffers its input, so you can't just do an ftell(). Use the
yy_create_buffer() and related routines. If you have a copy of my
book "flex & bison" there's an example of nested include files in
chapter 2. -John]

Return to the comp.compilers page.
Search the comp.compilers archives again.