Wolfgang Rohdewald <wolfg...@rohdewald.de> wrote: > On Sunday 13 September 2009, Nadav Chernin wrote: > > I'm writing program that read data from some instrument trough > > RS232. This instrument send data in VT100 format. I need only to > > extract the text without all other characters that describe how to > > represent data on the screen. Is there some library in python for > > converting VT100 strings? > > that should be easy using regular expressions
At a basic level parsing VT100 is quite easy, so you can get rid of the VT100 control. They start with ESC, have other characters in the middle then end with a letter (upper or lowercase), so a regexp will make short work of them. Something like r"\x1B[^A-Za-z]*[A-Za-z]" You might need to parse the VT100 stream as VT100 builds up a screen buffer though and the commands don't always come out in the order you might expect. I think twisted has VT100 emulator, but I couldn't find it in a brief search just now. You'll find various others (like this one) if you search some more http://svn.python.org/projects/python/branches/string_methods/Demo/cwilib/vt100.py -- Nick Craig-Wood <n...@craig-wood.com> -- http://www.craig-wood.com/nick -- http://mail.python.org/mailman/listinfo/python-list
