diff options
Diffstat (limited to 'src/interface-curses.cpp')
| -rw-r--r-- | src/interface-curses.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/interface-curses.cpp b/src/interface-curses.cpp index 93fe923..8c6af7f 100644 --- a/src/interface-curses.cpp +++ b/src/interface-curses.cpp @@ -803,6 +803,26 @@ InterfaceCurses::init_interactive(void) QRegisters::globals.update_environ(); /* + * On UNIX terminals, the escape key is usually + * delivered as the escape character even though function + * keys are delivered as escape sequences as well. + * That's why there has to be a timeout for detecting + * escape presses if function key handling is enabled. + * This timeout can be controlled using $ESCDELAY on + * ncurses but its default is much too long. + * We set it to 25ms as Vim does. In the very rare cases + * this won't suffice, $ESCDELAY can still be set explicitly. + * + * NOTE: The only terminal emulator I'm aware of that lets + * us send an escape sequence for the escape key is Mintty + * (see "\e[?7727h"). + */ +#ifdef NCURSES_UNIX + if (!g_getenv("ESCDELAY")) + set_escdelay(25); +#endif + + /* * $TERM must be unset or "#win32con" for the win32 * driver to load. * So we always ignore any $TERM changes by the user. |