163 lines
3.4 KiB
C
163 lines
3.4 KiB
C
#include <debugio.h>
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include "../hal/keyboard/keyboard.h"
|
|
|
|
// extern uint8* VideoPtr;
|
|
extern UPoint ConsoleCursor;
|
|
// extern UPoint ConsoleSize;
|
|
// extern uint8 ConsoleDefaultColor;
|
|
|
|
extern void _write_char (char c);
|
|
extern void _write_string (string s);
|
|
|
|
int _next_word_index (string s, int32 direction, int32 current, int32 len)
|
|
{
|
|
int32 tmp = current;
|
|
|
|
if (direction < 0) {
|
|
--tmp;
|
|
while ((isspace((unsigned char)s[tmp]) || ispunct((unsigned char)s[tmp])) && tmp > 0) --tmp;
|
|
while (isalnum((unsigned char)s[tmp]) && tmp > 0) --tmp;
|
|
|
|
if (tmp != 0) tmp++;
|
|
}
|
|
|
|
else {
|
|
++tmp;
|
|
while (isalnum((unsigned char)s[tmp]) && tmp < len) ++tmp;
|
|
while ((isspace((unsigned char)s[tmp]) || ispunct((unsigned char)s[tmp])) && tmp < len) ++tmp;
|
|
}
|
|
|
|
return tmp;
|
|
}
|
|
|
|
void _string_crop (string s, int32 start, int32 end, int32* len)
|
|
{
|
|
int32 i;
|
|
for (i = end; i < *len; i++)
|
|
s[i-(end-start)] = s[i];
|
|
|
|
*len = *len - (end - start);
|
|
s[*len] = 0;
|
|
}
|
|
|
|
void _string_insert (string s, char what, int32 position, int32* len)
|
|
{
|
|
int32 i;
|
|
for (i = *len; i > position; i--)
|
|
s[i] = s[i-1];
|
|
|
|
s[position] = what;
|
|
*len = *len + 1;
|
|
|
|
s[*len] = 0;
|
|
}
|
|
|
|
void ConsoleReadString (string s, int32 buffer_size, char end_char)
|
|
{
|
|
Key key;
|
|
int32 cursor=0, length = 0, old_length = 0;
|
|
UPoint cursor_original = ConsoleCursor;
|
|
|
|
s[0] = 0;
|
|
|
|
do {
|
|
// Read a key from keyboard
|
|
key = ReadKey();
|
|
|
|
// Process scancode
|
|
switch (key.Scancode)
|
|
{
|
|
// Left arrow
|
|
case KeyboardKeyLeft:
|
|
if (cursor > 0)
|
|
{
|
|
if (KeyboardGetKeyStatus(KeyboardKeyRightCtrl) || KeyboardGetKeyStatus(KeyboardKeyLeftCtrl))
|
|
cursor = _next_word_index(s, -1, cursor, length);
|
|
else --cursor;
|
|
}
|
|
break;
|
|
|
|
// Right arrow
|
|
case KeyboardKeyRight:
|
|
if (cursor < length)
|
|
{
|
|
if (KeyboardGetKeyStatus(KeyboardKeyRightCtrl) || KeyboardGetKeyStatus(KeyboardKeyLeftCtrl))
|
|
cursor = _next_word_index(s, 1, cursor, length);
|
|
else ++cursor;
|
|
}
|
|
break;
|
|
|
|
// Delete key
|
|
case KeyboardKeyDelete:
|
|
{
|
|
if (cursor == length) break;
|
|
|
|
int32 start_d = cursor, end_d;
|
|
if (KeyboardGetKeyStatus(KeyboardKeyRightCtrl) || KeyboardGetKeyStatus(KeyboardKeyLeftCtrl))
|
|
end_d = _next_word_index(s, 1, cursor, length);
|
|
else end_d = cursor + 1;
|
|
|
|
_string_crop(s, start_d, end_d, &length);
|
|
|
|
break;
|
|
}
|
|
|
|
// Backspace key
|
|
case KeyboardKeyBackspace:
|
|
{
|
|
if (cursor == 0) break;
|
|
|
|
int32 end = cursor;
|
|
if (KeyboardGetKeyStatus(KeyboardKeyRightCtrl) || KeyboardGetKeyStatus(KeyboardKeyLeftCtrl))
|
|
cursor = _next_word_index(s, -1, cursor, length);
|
|
else cursor --;
|
|
|
|
_string_crop(s, cursor, end, &length);
|
|
|
|
break;
|
|
}
|
|
|
|
// Home key
|
|
case KeyboardKeyHome:
|
|
cursor = 0; break;
|
|
|
|
// End key
|
|
case KeyboardKeyEnd:
|
|
cursor = length; break;
|
|
|
|
// Rest of keys
|
|
default:
|
|
// Ignore non-character keys
|
|
if (key.Character == 0 || iscntrl(key.Character)) break;
|
|
|
|
_string_insert(s, key.Character, cursor, &length);
|
|
++cursor;
|
|
|
|
break;
|
|
}
|
|
|
|
// Redraw string
|
|
ConsoleCursor = cursor_original;
|
|
|
|
// Remove old string if still there
|
|
int32 i;
|
|
if (old_length > length)
|
|
for (i = 0; i < old_length; i++)
|
|
_write_char(' ');
|
|
|
|
old_length = length;
|
|
ConsoleCursor = cursor_original;
|
|
_write_string(s);
|
|
|
|
ConsoleCursor = cursor_original;
|
|
ConsoleCursorIncreasePos(cursor);
|
|
ConsoleCursorUpdateHardware();
|
|
|
|
} while (key.Character != end_char && length < buffer_size);
|
|
|
|
ConsoleWriteChar('\n');
|
|
}
|
|
|