Re: [pdf-devel] pdf functions, pdf_stm_t

[jemarch]

   I have built a pdf_stm_getc() - Macro around a buffer-filling  
   call to  pdf_stm_read( stm,&buf,bufsize). 
   Is this the correct way? 
   May I use a similar interface for the type4 lexer?
   Is there some code I might reuse?

The (uncommited yet) changes to streams provides an efficient `int
pdf_stm_read_char ()':

   `read_char'

       Read a character from the backend storage and return it in an
       integer (may be PDF_EOF). This function should only be called when
       `read_p' returns true.

Dont worry about this, you can continue using your `pdf_stm_getc'. I
will change it to use the new stm interface when merging your changes
in.

   A full flex/bison parser seems to be overkill. 
   The list of operators is not likely to change, and 
   I can compile the token stream for a type4 function into 
   bytecodes in a single pass:  braces and if/ifelse are turned 
   into jump instructions. 

If you can implement such a simple lexer one-pass parser, please do
it.

Thanks.

-- 
Jose E. Marchesi  <address@hidden>
                  <address@hidden>

GNU Spain         http://es.gnu.org
GNU Project       http://www.gnu.org