或在添加到当前指针时导致溢出。
应用程序可以沿着标记流向前推进指针并分析当前指针所在位置的标记。
The application can advance the cursor forward along the token stream and examine the token at the cursor location.
(显示游玩区光标)：如果这个启动，游玩区界限就会在光束指针的顶端显示出来，颜色和当前指针颜色相同。
Show play area Cursor: If this is enabled then the play area boundaries are displayed at the tip of the pointer beam in the current pointer colour.
TidyAndResetCurs or函数可以通过存储在变量cursor _ pos中内置的getpos返回的指针信息，来记录当前指针的位置。
The TidyAndResetCursor function first makes a record of the current cursor position, by storing the cursor information returned by the built-in getpos in the variable cursor_pos.
TidyAndResetCurs or函数可以通过存储在变量cursor _ pos中内置的getpos返回的指针信息，来记录当前指针的位置。
The TidyAndResetCursor function first makes a record of the current cursor position, by storing the cursor information returned by the built-in getpos in the variable cursor_pos.
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