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Known Bugs:
* ??? Dot is not always restored properly (e.g. after closing file)
need test case!!!
* Null-byte in strings not always handled transparently
* saving another user's file will only preserve the user when run as root
(WON'T FIX!?)
Features:
* Progress indication in commandline cursor
* catch OOM errors (can happen easily due to infinite loops)
* undo-tokens per char limit (additional infinite loop safety)
* Function-key support, configurable
* generic function-key substitution, or
* function-key encoding (e.g. Page-down -> ^FPD), or
* function-key to ASCII/UTF mapping (as command executes macro of the same name)
* extended Q-Register namespace
* 2 char q-registers like in Troff (e.g. "Q(xy")
* arbitrary length names (e.g. "Q$xyz$", see ITS TECO)
-> Macro libraries
* Q-Register aliasing/linking
* EC command
* command-line push-down mechanism
* TECO syntax highlighting
* multiline commandline
* improve GTK interface
* modifier for toggling string building processing
* simplify parser (static jump tables are unnecessary!)
* ??? optional modified-detection based on hash sums ???
* backup files
* search and other commands can be significantly optimized:
in batch mode, or in loops there is no need to rematch every character!
Documentation:
* Code docs (Doxygen)
* Language reference?
* Command reference
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