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#include "vterm_internal.h"
#include <stdio.h>
#include "utf8.h"
void vterm_keyboard_unichar(VTerm *vt, uint32_t c, VTermModifier mod)
{
/* The shift modifier is never important for Unicode characters
* apart from Space
*/
if(c != ' ')
mod &= ~VTERM_MOD_SHIFT;
if(mod == 0) {
// Normal text - ignore just shift
char str[6];
int seqlen = fill_utf8(c, str);
vterm_push_output_bytes(vt, str, seqlen);
return;
}
int needs_CSIu;
switch(c) {
/* Special Ctrl- letters that can't be represented elsewise */
case 'i': case 'j': case 'm': case '[':
needs_CSIu = 1;
break;
/* Ctrl-\ ] ^ _ don't need CSUu */
case '\\': case ']': case '^': case '_':
needs_CSIu = 0;
break;
/* Shift-space needs CSIu */
case ' ':
needs_CSIu = !!(mod & VTERM_MOD_SHIFT);
break;
/* All other characters needs CSIu except for letters a-z */
default:
needs_CSIu = (c < 'a' || c > 'z');
}
/* ALT we can just prefix with ESC; anything else requires CSI u */
if(needs_CSIu && (mod & ~VTERM_MOD_ALT)) {
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d;%du", c, mod+1);
return;
}
if(mod & VTERM_MOD_CTRL)
c &= 0x1f;
vterm_push_output_sprintf(vt, "%s%c", mod & VTERM_MOD_ALT ? ESC_S : "", c);
}
typedef struct {
enum {
KEYCODE_NONE,
KEYCODE_LITERAL,
KEYCODE_TAB,
KEYCODE_ENTER,
KEYCODE_SS3,
KEYCODE_CSI,
KEYCODE_CSI_CURSOR,
KEYCODE_CSINUM,
KEYCODE_KEYPAD,
} type;
char literal;
int csinum;
} keycodes_s;
static keycodes_s keycodes[] = {
{ KEYCODE_NONE }, // NONE
{ KEYCODE_ENTER, '\r' }, // ENTER
{ KEYCODE_TAB, '\t' }, // TAB
{ KEYCODE_LITERAL, '\x7f' }, // BACKSPACE == ASCII DEL
{ KEYCODE_LITERAL, '\x1b' }, // ESCAPE
{ KEYCODE_CSI_CURSOR, 'A' }, // UP
{ KEYCODE_CSI_CURSOR, 'B' }, // DOWN
{ KEYCODE_CSI_CURSOR, 'D' }, // LEFT
{ KEYCODE_CSI_CURSOR, 'C' }, // RIGHT
{ KEYCODE_CSINUM, '~', 2 }, // INS
{ KEYCODE_CSINUM, '~', 3 }, // DEL
{ KEYCODE_CSI_CURSOR, 'H' }, // HOME
{ KEYCODE_CSI_CURSOR, 'F' }, // END
{ KEYCODE_CSINUM, '~', 5 }, // PAGEUP
{ KEYCODE_CSINUM, '~', 6 }, // PAGEDOWN
};
static keycodes_s keycodes_fn[] = {
{ KEYCODE_NONE }, // F0 - shouldn't happen
{ KEYCODE_SS3, 'P' }, // F1
{ KEYCODE_SS3, 'Q' }, // F2
{ KEYCODE_SS3, 'R' }, // F3
{ KEYCODE_SS3, 'S' }, // F4
{ KEYCODE_CSINUM, '~', 15 }, // F5
{ KEYCODE_CSINUM, '~', 17 }, // F6
{ KEYCODE_CSINUM, '~', 18 }, // F7
{ KEYCODE_CSINUM, '~', 19 }, // F8
{ KEYCODE_CSINUM, '~', 20 }, // F9
{ KEYCODE_CSINUM, '~', 21 }, // F10
{ KEYCODE_CSINUM, '~', 23 }, // F11
{ KEYCODE_CSINUM, '~', 24 }, // F12
};
static keycodes_s keycodes_kp[] = {
{ KEYCODE_KEYPAD, '0', 'p' }, // KP_0
{ KEYCODE_KEYPAD, '1', 'q' }, // KP_1
{ KEYCODE_KEYPAD, '2', 'r' }, // KP_2
{ KEYCODE_KEYPAD, '3', 's' }, // KP_3
{ KEYCODE_KEYPAD, '4', 't' }, // KP_4
{ KEYCODE_KEYPAD, '5', 'u' }, // KP_5
{ KEYCODE_KEYPAD, '6', 'v' }, // KP_6
{ KEYCODE_KEYPAD, '7', 'w' }, // KP_7
{ KEYCODE_KEYPAD, '8', 'x' }, // KP_8
{ KEYCODE_KEYPAD, '9', 'y' }, // KP_9
{ KEYCODE_KEYPAD, '*', 'j' }, // KP_MULT
{ KEYCODE_KEYPAD, '+', 'k' }, // KP_PLUS
{ KEYCODE_KEYPAD, ',', 'l' }, // KP_COMMA
{ KEYCODE_KEYPAD, '-', 'm' }, // KP_MINUS
{ KEYCODE_KEYPAD, '.', 'n' }, // KP_PERIOD
{ KEYCODE_KEYPAD, '/', 'o' }, // KP_DIVIDE
{ KEYCODE_KEYPAD, '\n', 'M' }, // KP_ENTER
{ KEYCODE_KEYPAD, '=', 'X' }, // KP_EQUAL
};
void vterm_keyboard_key(VTerm *vt, VTermKey key, VTermModifier mod)
{
if(key == VTERM_KEY_NONE)
return;
keycodes_s k;
if(key < VTERM_KEY_FUNCTION_0) {
if(key >= sizeof(keycodes)/sizeof(keycodes[0]))
return;
k = keycodes[key];
}
else if(key >= VTERM_KEY_FUNCTION_0 && key <= VTERM_KEY_FUNCTION_MAX) {
if((key - VTERM_KEY_FUNCTION_0) >= sizeof(keycodes_fn)/sizeof(keycodes_fn[0]))
return;
k = keycodes_fn[key - VTERM_KEY_FUNCTION_0];
}
else if(key >= VTERM_KEY_KP_0) {
if((key - VTERM_KEY_KP_0) >= sizeof(keycodes_kp)/sizeof(keycodes_kp[0]))
return;
k = keycodes_kp[key - VTERM_KEY_KP_0];
}
switch(k.type) {
case KEYCODE_NONE:
break;
case KEYCODE_TAB:
/* Shift-Tab is CSI Z but plain Tab is 0x09 */
if(mod == VTERM_MOD_SHIFT)
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "Z");
else if(mod & VTERM_MOD_SHIFT)
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "1;%dZ", mod+1);
else
goto case_LITERAL;
break;
case KEYCODE_ENTER:
/* Enter is CRLF in newline mode, but just LF in linefeed */
if(vt->state->mode.newline)
vterm_push_output_sprintf(vt, "\r\n");
else
goto case_LITERAL;
break;
case KEYCODE_LITERAL: case_LITERAL:
if(mod & (VTERM_MOD_SHIFT|VTERM_MOD_CTRL))
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d;%du", k.literal, mod+1);
else
vterm_push_output_sprintf(vt, mod & VTERM_MOD_ALT ? ESC_S "%c" : "%c", k.literal);
break;
case KEYCODE_SS3: case_SS3:
if(mod == 0)
vterm_push_output_sprintf_ctrl(vt, C1_SS3, "%c", k.literal);
else
goto case_CSI;
break;
case KEYCODE_CSI: case_CSI:
if(mod == 0)
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%c", k.literal);
else
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "1;%d%c", mod + 1, k.literal);
break;
case KEYCODE_CSINUM:
if(mod == 0)
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d%c", k.csinum, k.literal);
else
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "%d;%d%c", k.csinum, mod + 1, k.literal);
break;
case KEYCODE_CSI_CURSOR:
if(vt->state->mode.cursor)
goto case_SS3;
else
goto case_CSI;
case KEYCODE_KEYPAD:
if(vt->state->mode.keypad) {
k.literal = k.csinum;
goto case_SS3;
}
else
goto case_LITERAL;
}
}
void vterm_keyboard_start_paste(VTerm *vt)
{
if(vt->state->mode.bracketpaste)
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "200~");
}
void vterm_keyboard_end_paste(VTerm *vt)
{
if(vt->state->mode.bracketpaste)
vterm_push_output_sprintf_ctrl(vt, C1_CSI, "201~");
}
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