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Rev 1421 Rev 1422
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  }
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  }
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}
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}
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static void cursor_up(struct file *db) {
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static void cursor_up(struct file *db) {
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  if (db->cursor->prev != NULL) {
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  if (db->cursor->prev == NULL) return;
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    db->curline -= 1;
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  db->curline -= 1;
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    db->cursor = db->cursor->prev;
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  db->cursor = db->cursor->prev;
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    if (db->cursorposy == 0) {
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  if (db->cursorposy == 0) {
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      uidirty.from = 0;
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    uidirty.from = 0;
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      uidirty.to = 0xff;
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    uidirty.to = 0xff;
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    } else {
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  } else {
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      db->cursorposy -= 1;
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    db->cursorposy -= 1;
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    }
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  }
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  }
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}
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}
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static void cursor_eol(struct file *db) {
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static void cursor_eol(struct file *db) {
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  db->cursorposx = db->cursor->len - db->xoffset;
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  db->cursorposx = db->cursor->len - db->xoffset;
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}
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}
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static void cursor_down(struct file *db) {
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static void cursor_down(struct file *db) {
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  if (db->cursor->next != NULL) {
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  if (db->cursor->next == NULL) return;
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    db->curline += 1;
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  db->curline += 1;
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    db->cursor = db->cursor->next;
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  db->cursor = db->cursor->next;
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    if (db->cursorposy < screenh - 2) {
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  if (db->cursorposy < screenh - 2) {
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      db->cursorposy += 1;
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    db->cursorposy += 1;
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    } else {
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  } else {
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      uidirty.from = 0;
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    uidirty.from = 0;
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      uidirty.to = 0xff;
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    uidirty.to = 0xff;
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    }
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  }
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  }
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}
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}
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static void cursor_left(struct file *db) {
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static void cursor_left(struct file *db) {