Process filters — line at a time?

[Christopher Howard]

Hi, I maintain a legacy system that communicates over a 9600 7E1 RS-232 
connection. I want to use Emacs to automate some things that normally involving 
hours of sitting in front of the terminal and a lot of keystrokes. Currently 
29.4 is installed on the computer attached to the serial port.

I've made a good start using serial-term and serial-process-configure to setup 
my terminal, with the idea of using process-send-string to send commands, and a 
process filter to analyze the output. However, I need to analyze the output a 
line a time, to know what commands to send, and my understanding is that 
process filters do not necessarily give you a whole line at a time. I was 
wondering if there was some Emacs abstraction or approach that might be helpful 
here, so that I could focusing on matching lines of data, without getting all 
caught up in the intricacies of buffering and character processing. Or maybe 
some way to configure the process so that the process filter always delivers a 
line at a time.

-- 
📛 Christopher Howard
🚀 gemini://gem.librehacker.com
🌐 http://gem.librehacker.com

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