Hi,

I've been using PLY to parse my little DSL and so force.
I now need to parse an hybrid legacy language that can be a request
message but also host a data message (and then it is can be big for a
message around 20 MB).
As I am familiar with the PLY lexer, I would like to use it to
tokenize this message.
However ply.lexer does only take a string as input and I would like to
avoid load 20 MB in memory.
Is there a way to have the PLY lexer reading from a stream or is there
a way to make PLY believe that it is a string and behind the scene in
reality it is an IO stream.

Thanks for the future help

   Cheers Guillaume
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