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https://github.com/rkd77/elinks.git
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c0e0a1b56d
@ -49,7 +49,7 @@ struct terminal_interlink {
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* ELinks sees e.g. ESC U+00F6 as 0x1B 0xC3 0xB6 and
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* ELinks sees e.g. ESC U+00F6 as 0x1B 0xC3 0xB6 and
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* converts it to Alt-0xC3 0xB6, attaching the
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* converts it to Alt-0xC3 0xB6, attaching the
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* modifier to the first byte only. */
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* modifier to the first byte only. */
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int modifier;
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term_event_modifier_T modifier;
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} utf_8;
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} utf_8;
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/* This is the queue of events as coming from the other ELinks instance
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/* This is the queue of events as coming from the other ELinks instance
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@ -133,7 +133,8 @@ term_send_event(struct terminal *term, struct term_event *ev)
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}
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}
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static void
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static void
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term_send_ucs(struct terminal *term, unicode_val_T u, int modifier)
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term_send_ucs(struct terminal *term, unicode_val_T u,
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term_event_modifier_T modifier)
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{
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{
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#ifdef CONFIG_UTF_8
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#ifdef CONFIG_UTF_8
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struct term_event ev;
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struct term_event ev;
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@ -277,7 +278,7 @@ handle_interlink_event(struct terminal *term, struct interlink_event *ilev)
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{
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{
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int utf8_io = -1;
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int utf8_io = -1;
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int key = ilev->info.keyboard.key;
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int key = ilev->info.keyboard.key;
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int modifier = ilev->info.keyboard.modifier;
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term_event_modifier_T modifier = ilev->info.keyboard.modifier;
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if (key >= 0x100)
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if (key >= 0x100)
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key = -key;
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key = -key;
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@ -71,17 +71,21 @@ set_mouse_interlink_event(struct interlink_event *ev, int x, int y, unsigned int
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}
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}
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static inline void
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static inline void
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set_kbd_term_event(struct term_event *ev, int key, int modifier)
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set_kbd_term_event(struct term_event *ev, int key,
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term_event_modifier_T modifier)
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{
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{
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memset(ev, 0, sizeof(*ev));
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memset(ev, 0, sizeof(*ev));
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ev->ev = EVENT_KBD;
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ev->ev = EVENT_KBD;
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kbd_set(&ev->info.keyboard, key, modifier);
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kbd_set(&ev->info.keyboard, key, modifier);
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}
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}
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/* @key can be e.g. KBD_ENTER as in term_event_keyboard.key.
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/* @key can be either an 8-bit byte or a value from enum term_event_special_key.
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* This function then sets ev->info.keyboard.key = -KBD_ENTER. */
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* In the latter case, this function negates the value, unless it is KBD_UNDEF.
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* For example, key == KBD_ENTER results in ev->info.keyboard.key = -KBD_ENTER.
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* This mapping keeps the interlink protocol compatible with ELinks 0.11. */
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static inline void
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static inline void
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set_kbd_interlink_event(struct interlink_event *ev, int key, int modifier)
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set_kbd_interlink_event(struct interlink_event *ev, int key,
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term_event_modifier_T modifier)
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{
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{
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memset(ev, 0, sizeof(*ev));
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memset(ev, 0, sizeof(*ev));
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ev->ev = EVENT_KBD;
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ev->ev = EVENT_KBD;
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@ -48,6 +48,14 @@ static int process_queue(struct itrm *);
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static void handle_itrm_stdin(struct itrm *);
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static void handle_itrm_stdin(struct itrm *);
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static void unhandle_itrm_stdin(struct itrm *);
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static void unhandle_itrm_stdin(struct itrm *);
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#ifdef CONFIG_DEBUG
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/* This hack makes GCC put enum term_event_special_key in the debug
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* information even though it is not otherwise used. The const
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* prevents an unused-variable warning. */
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static const enum term_event_special_key dummy_term_event_special_key;
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#endif
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int
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int
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is_blocked(void)
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is_blocked(void)
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{
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{
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@ -833,8 +841,14 @@ decode_terminal_application_key(struct itrm *itrm, struct interlink_event *ev)
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}
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}
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/* Initialize *@ev to match the byte @key received from the terminal.
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* Actually, @key could also be a value from enum term_event_special_key;
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* but callers that use those values generally don't need the mapping
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* provided by this function, so they call set_kbd_interlink_event()
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* directly. */
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static void
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static void
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set_kbd_event(struct interlink_event *ev, int key, int modifier)
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set_kbd_event(struct interlink_event *ev,
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int key, term_event_modifier_T modifier)
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{
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{
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switch (key) {
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switch (key) {
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case ASCII_TAB:
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case ASCII_TAB:
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@ -3,77 +3,92 @@
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struct itrm;
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struct itrm;
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/* Values <= -0x100 are special; e.g. KBD_ENTER.
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/* Values <= -0x100 are special; from enum term_event_special_key.
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* Values between -0xFF and -2 are not used yet; treat as special.
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* Values between -0xFF and -2 are not used yet; treat as special.
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* Value == -1 is KBD_UNDEF; not sent via socket.
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* Value == -1 is KBD_UNDEF; not sent via socket.
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* Values >= 0 are characters received from the terminal;
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* Values >= 0 are characters received from the terminal;
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* in UCS-4 #ifdef CONFIG_UTF_8. */
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* in UCS-4 #ifdef CONFIG_UTF_8. Test with is_kbd_character().
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typedef int term_event_key_T;
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*
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* Any at least 32-bit signed integer type would work here; using an
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* exact-width type hurts portability in principle, but some other
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* parts of ELinks already require the existence of uint32_t. */
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typedef int32_t term_event_key_T;
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/* Values for term_event_keyboard.modifier and
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* interlink_event_keyboard.modifier */
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typedef enum {
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KBD_MOD_NONE = 0,
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KBD_MOD_SHIFT = 1,
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KBD_MOD_CTRL = 2,
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KBD_MOD_ALT = 4
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} term_event_modifier_T;
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struct term_event_keyboard {
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struct term_event_keyboard {
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term_event_key_T key;
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term_event_key_T key;
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int modifier;
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term_event_modifier_T modifier;
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};
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};
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struct interlink_event_keyboard {
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struct interlink_event_keyboard {
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/* Values <= -2 are not used, for ELinks 0.11 compatibility.
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/* Values <= -2 are not used, for ELinks 0.11 compatibility.
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* Value == -1 is KBD_UNDEF; not sent via socket.
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* Value == -1 is KBD_UNDEF; not sent via socket.
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* Values between 0 and 0xFF are bytes received from the terminal.
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* Values between 0 and 0xFF are bytes received from the terminal.
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* Values >= 0x100 are special; e.g. -KBD_ENTER. */
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* Values >= 0x100 are special; absolute values of constants
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* from enum term_event_special_key, e.g. -KBD_ENTER. */
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int key;
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int key;
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/* The values are from term_event_modifier_T, but the type
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* must be int so that the representation remains compatible
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* with ELinks 0.11. */
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int modifier;
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int modifier;
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};
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};
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/* Values for term_event_key_T */
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/* Codes of special keys, for use in term_event_key_T.
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* The enum has a tag mainly to let you cast numbers to it in GDB and see
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* their names. ELinks doesn't use this enum type as term_event_key_T,
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* because it might be 16-bit and Unicode characters wouldn't then fit. */
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enum term_event_special_key {
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KBD_UNDEF = -1,
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#define KBD_UNDEF -1
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KBD_ENTER = -0x100,
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KBD_BS = -0x101,
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KBD_TAB = -0x102,
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KBD_ESC = -0x103,
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KBD_LEFT = -0x104,
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KBD_RIGHT = -0x105,
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KBD_UP = -0x106,
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KBD_DOWN = -0x107,
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KBD_INS = -0x108,
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KBD_DEL = -0x109,
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KBD_HOME = -0x10a,
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KBD_END = -0x10b,
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KBD_PAGE_UP = -0x10c,
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KBD_PAGE_DOWN = -0x10d,
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#define KBD_ENTER (-0x100)
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KBD_F1 = -0x120,
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#define KBD_BS (-0x101)
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KBD_F2 = -0x121,
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#define KBD_TAB (-0x102)
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KBD_F3 = -0x122,
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#define KBD_ESC (-0x103)
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KBD_F4 = -0x123,
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#define KBD_LEFT (-0x104)
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KBD_F5 = -0x124,
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#define KBD_RIGHT (-0x105)
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KBD_F6 = -0x125,
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#define KBD_UP (-0x106)
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KBD_F7 = -0x126,
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#define KBD_DOWN (-0x107)
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KBD_F8 = -0x127,
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#define KBD_INS (-0x108)
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KBD_F9 = -0x128,
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#define KBD_DEL (-0x109)
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KBD_F10 = -0x129,
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#define KBD_HOME (-0x10a)
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KBD_F11 = -0x12a,
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#define KBD_END (-0x10b)
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KBD_F12 = -0x12b,
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#define KBD_PAGE_UP (-0x10c)
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#define KBD_PAGE_DOWN (-0x10d)
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KBD_CTRL_C = -0x200
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};
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#define KBD_F1 (-0x120)
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#define KBD_F2 (-0x121)
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#define KBD_F3 (-0x122)
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#define KBD_F4 (-0x123)
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#define KBD_F5 (-0x124)
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#define KBD_F6 (-0x125)
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#define KBD_F7 (-0x126)
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#define KBD_F8 (-0x127)
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#define KBD_F9 (-0x128)
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#define KBD_F10 (-0x129)
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#define KBD_F11 (-0x12a)
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#define KBD_F12 (-0x12b)
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static inline int is_kbd_fkey(term_event_key_T key) { return key <= KBD_F1 && key >= KBD_F12; }
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static inline int is_kbd_fkey(term_event_key_T key) { return key <= KBD_F1 && key >= KBD_F12; }
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#define number_to_kbd_fkey(num) (KBD_F1 - (num) + 1)
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#define number_to_kbd_fkey(num) (KBD_F1 - (num) + 1)
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#define kbd_fkey_to_number(key) (KBD_F1 - (key) + 1)
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#define kbd_fkey_to_number(key) (KBD_F1 - (key) + 1)
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#define KBD_CTRL_C (-0x200)
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/* int is_kbd_character(term_event_key_T key);
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/* int is_kbd_character(term_event_key_T key);
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* Return true if @key is a character in some charset, rather than a
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* Return true if @key is a character in some charset, rather than a
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* special key. The character is not necessarily printable. As for
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* special key. The character is not necessarily printable. As for
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* which charset it is in, see the definition of term_event_key_T. */
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* which charset it is in, see the definition of term_event_key_T. */
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#define is_kbd_character(key) ((key) >= 0)
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#define is_kbd_character(key) ((key) >= 0)
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/* Values for term_event_keyboard.modifier and
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* interlink_event_keyboard.modifier */
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#define KBD_MOD_NONE 0
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#define KBD_MOD_SHIFT 1
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#define KBD_MOD_CTRL 2
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#define KBD_MOD_ALT 4
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void
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void
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handle_trm(int std_in, int std_out, int sock_in, int sock_out, int ctl_in,
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handle_trm(int std_in, int std_out, int sock_in, int sock_out, int ctl_in,
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void *init_string, int init_len, int remote);
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void *init_string, int init_len, int remote);
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