Re: VT100 in Python
On Mon, 14 Sep 2009 04:29:57 -0500, Nick Craig-Wood wrote: 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] While this pattern is common, unfortunately there are some exceptions. Also, vt100 has become a generic term for terminal emulation. There is no guarantee that the OP actually wants to parse vt100 escapes and nothing else. -- http://mail.python.org/mailman/listinfo/python-list
Re: VT100 in Python
On 2009-09-14, Wolfgang Rohdewald wolfg...@rohdewald.de wrote: that should be easy using regular expressions And they say irony doesn't work well on Usenet! -- Grant Edwards grante Yow! My nose feels like a at bad Ronald Reagan movie ... visi.com -- http://mail.python.org/mailman/listinfo/python-list
VT100 in Python
Hi, everybody 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? Thanks, Nadav -- http://mail.python.org/mailman/listinfo/python-list
Re: VT100 in Python
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 -- Wolfgang -- http://mail.python.org/mailman/listinfo/python-list
Re: VT100 in Python
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
Re: VT100 in Python
On 09:29 am, n...@craig-wood.com wrote: 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. Yep, though it's one of the parts of Twisted that only has API documentation and a few examples, no expository prose-style docs. If you're feeling brave, though: http://twistedmatrix.com/documents/current/api/twisted.conch.insults.insults.ITerminalTransport.html http://twistedmatrix.com/documents/current/api/twisted.conch.insults.insults.ITerminalProtocol.html http://twistedmatrix.com/projects/conch/documentation/examples/ (the insults section) It's not really all that complicated, but without adequate docs it can still be tricky to figure things out. There's almost always someone on IRC (#twisted on freenode) to offer real-time help, though. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: VT100 in Python
I hate to ask but what kind of device.and what`s with all the `insult` strings? - gimmick? --Original Message-- From: exar...@twistedmatrix.com To: python-list@python.org Date: Mon, 14 Sep 2009 01:43:11 PM + Subject: Re: VT100 in Python On 09:29 am, n...@craig-wood.com wrote: 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. Yep, though it's one of the parts of Twisted that only has API documentation and a few examples, no expository prose-style docs. If you're feeling brave, though: http://twistedmatrix.com/documents/current/api/twisted.conch.insults.insults.ITerminalTransport.html http://twistedmatrix.com/documents/current/api/twisted.conch.insults.insults.ITerminalProtocol.html http://twistedmatrix.com/projects/conch/documentation/examples/ (the insults section) It's not really all that complicated, but without adequate docs it can still be tricky to figure things out. There's almost always someone on IRC (#twisted on freenode) to offer real-time help, though. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: VT100 in Python
On Mon, Sep 14, 2009 at 10:58 PM, bouncy...@gmail.com bouncy...@gmail.com wrote: From: exar...@twistedmatrix.com http://twistedmatrix.com/documents/current/api/twisted.conch.insults.insults.ITerminalTransport.html http://twistedmatrix.com/documents/current/api/twisted.conch.insults.insults.ITerminalProtocol.html http://twistedmatrix.com/projects/conch/documentation/examples/ (the insults section) what`s with all the `insult` strings? - gimmick? I think that 'insults' is twisted's replacement for curses. -- Jerry -- http://mail.python.org/mailman/listinfo/python-list
