| 230,6 → 230,34 |
|---|
| } |
| |
| |
| static void del(struct linedb *db, unsigned char cursorposx, unsigned char cursorposy, unsigned char *uidirtyfrom, unsigned char *uidirtyto) { |
| if (cursorposx + db->xoffset < db->cursor->len) { |
| _fmemmove(db->cursor->payload + cursorposx + db->xoffset, db->cursor->payload + cursorposx + db->xoffset + 1, db->cursor->len - cursorposx - db->xoffset); |
| db->cursor->len -= 1; /* do this AFTER memmove so the copy includes the nul terminator */ |
| *uidirtyfrom = cursorposy; |
| *uidirtyto = cursorposy; |
| } else if (db->cursor->next != NULL) { /* cursor is at end of line: merge current line with next one (if there is a next one) */ |
| struct line far *nextline = db->cursor->next; |
| if (db->cursor->next->len > 0) { |
| void far *newptr = _frealloc(db->cursor, sizeof(struct line) + db->cursor->len + db->cursor->next->len + 1); |
| if (newptr != NULL) { |
| db->cursor = newptr; |
| _fmemcpy(db->cursor->payload + db->cursor->len, db->cursor->next->payload, db->cursor->next->len + 1); |
| db->cursor->len += db->cursor->next->len; |
| /* update db->topscreen if needed */ |
| if (cursorposy == 0) db->topscreen = db->cursor; |
| } |
| } |
| db->cursor->next = db->cursor->next->next; |
| db->cursor->next->prev = db->cursor; |
| if (db->cursor->prev != NULL) db->cursor->prev->next = db->cursor; /* in case realloc changed my pointer */ |
| _ffree(nextline); |
| *uidirtyfrom = cursorposy; |
| *uidirtyto = 0xff; |
| } |
| } |
| |
| |
| /* a custom argv-parsing routine that looks directly inside the PSP, avoids the need |
| * of argc and argv, saves some 330 bytes of binary size */ |
| static char *parseargv(void) { |
| 413,6 → 441,9 |
|---|
| /* ERROR: OUT OF MEMORY */ |
| } |
| |
| } else if (k == 0x153) { /* DEL */ |
| del(&db, cursorposx, cursorposy, &uidirtyfrom, &uidirtyto); |
| |
| } else { /* UNHANDLED KEY - TODO IGNORE THIS IN PRODUCTION RELEASE */ |
| char buff[4]; |
| const char *HEX = "0123456789ABCDEF"; |