(putchar): Call internal_flush instead of _flsbuf.
(DO_TERMSCRIPT): New macro to support open-termscript. (internal_flush): Corrected handling of flush in middle of escape sequences. Handle screen width > 127. (flush_escape): New function for use by internal_flush. (sys_select): New MS-DOS specific version with us timing. (EMACSCOLORS): New environment variable. (IT_clear_end_of_line): Set default face. (run_msdos_command): Restore mouse position after command. Close "backup fd"s. Corrected switch to cooked mode while running command. (mouse_on, mouse_off): Now checks have_mouse > 0. Note: "have_mouse < 0" means that a mouse is present, but it has been disabled via msdos-mouse-disable. (IT_write_glyphs): Allow esc-character itself to be printed. (event_timestamp): New function to make reliable times stamps. (sys_chdir): Skip drive letter before calling chdir. (sleep_or_kbd_hit): Handle 60 seconds time wrap. (mouse_get_pos): Return event_timestamp.
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