as a statusbar prompt click


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winio.c


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get_statusbar_page_start(), the statusbar prompt's equivalent of
get_page_start(); also make sure that the minimum allowed terminal size
in columns is 4, as the statusbar prompt code relies on this assumption
and will crash otherwise


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blocking wgetch() returns ERR and errno is set to EIO (input/output
error); if errno is set to something else, recover properly; this fixes
problems with nano's erroneously hanging up while e.g. resizing or
unsuspending in a chroot


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allocating enough space for (COLS + 1) characters


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VT100/VT220/VT320/xterm/rxvt escape sequence for ',' on the numeric
keypad with NumLock off from being interpreted properly


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allocating enough space for COLS characters


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character's a tab, which can be possible if there are enough tabs and
the terminal size is sufficiently large, don't try to display it using
control_mbrep()


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a few tweaks


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fixes


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FFFF instead of xxxE and xxxF, and discard hexadecimal D800 to DFFF as
well, as they're also invalid Unicode characters


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related variables


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of FFFF, as FFFE and FFFF are invalid Unicode characters


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functions' append parameter an enum instead of an int


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place to another, and add formatting fixes to the old code


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