Where Can I Find Tty and Curses Documentation for Unix?
I'm Working on Automation Tools for an Erp Program Running on Sco Unix. See My Questions on Expect: (Tcl/Expect) Clear Screen After Exit Expect - Get Variable...
I'm working on automation tools for an ERP program running on SCO Unix.
See my questions on Expect:
- (Tcl/Expect) clear screen after exit
- Expect - get variable from screen region based on row and column
Where can I find (either locally or on the web) resources for understanding what control characters are used in a session, and more specifically, determining a field location on the screen during an interaction with the ERP program?
3 Answers
The specific control characters for a given terminal type are stored in the terminfo database. curses reads the value of $TERM when initializing and uses it to find and extract the relevant sequences for the various terminal operations.
I'm not really clear what you are asking, but one source of documentation on curses is the GNU implementation at . As far as 'control characters' go, well that depends on what terminal you use - yours probably understands ANSI codes - see .
I just found out that the X/Open Group released a new version of their standard in November 2009 (previous version was released in 1996), and it is available free on the web from their bookstore as Technical Standard - X/Open Curses, Issue 7. You have to register, but access is free (and registration does not lead to an inundation of email, etc).
The previous version, Issue 4, Version 2 (from July 1996), is no longer available from X/Open. Given the newness of Issue 7, the new features are unlikely to be widely implemented yet, but look for changes in the next few years.
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
