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bb453dd27c
Shortly after the previous commit I spotted another definitely missing
display update: if you send the byte 0x7F, aka 'destructive
backspace', then the display didn't update immediately.
That was two in a row, so I did an eyeball review of the whole
terminal state machine to the best of my ability. Found a couple more
borderline ones, but also, found that the entire VT52 sub-state-
machine had a blanket seen_disp_event which really _shouldn't_ have
been there, because half the VT52 sequences aren't actually display-
modifying updates.
To make this _slightly_ less error-prone, I've sunk a number of
seen_disp_update calls into subroutines that aren't the top-level
term_out(). For example, erase_lots(), scroll(), move() and
swap_screen() now all call seen_disp_update within themselves, so
their call sites don't all have to remember to.
There are probably further bugs after this upheaval, but I think it's
moving in generally the right direction.
(cherry picked from commit
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bidi_gettype.c | ||
bidi_test.c | ||
bidi.c | ||
bidi.h | ||
terminal.c | ||
terminal.h |