Handle more ansi and OSC sequences

[direc85]

Vim seems to use these:

[D] unknown:0 - unhandled ansi sequence  'h' (1000) "?"
[D] unknown:0 - unhandled ansi sequence  'm' (4, 2) ">"
[D] unknown:0 - unhandled ansi sequence  'h' (2004) "?"
[D] unknown:0 - unhandled OSC "]10;?"
[D] unknown:0 - unhandled OSC "]11;?"
[D] unknown:0 - unhandled ansi sequence  'h' (2004) "?"
[D] unknown:0 - unhandled ansi sequence  'l' (1000) "?"
[D] unknown:0 - unhandled ansi sequence  'l' (2004) "?"
[D] unknown:0 - unhandled ansi sequence  'l' (2004) "?"
[D] unknown:0 - unhandled ansi sequence  'm' (4) ">"

Sailfish OS 4.4.0.58 emulatior (EA), ToeTerm 1.9.11

[direc85]

From invisible-island.net:

• CSI ? 1000 h -- send cursor coordinates on mouse release
• CSI ? 1000 l -- don't send cursor coordinates on mouse release
• CSI ? 2004 h -- set bracketed paste mode
• CSI ? 2004 l -- reset bracketed paste mode
• CSI > 4 2 m -- send ctrl, alt etc. key combos as escape sequences (I guess?)
• CSI > 4 m -- reset the above

From Linux kernel mailing list archive

• ]10;? -- query default foreground color
• ]11;? -- query default background color

It looks like vim sets and resets functionality as it checks the capabilities of the terminal. It would be still nice to implement at least some of these. The cursor support would be possible, but tricky to use on small screen - but I've read rumors about mouse support in SFOS :slightly_smiling_face: