FMSLogo Code

Make pressing the up-arrow on the numpad equivalent to pressing the up arrow.

Fix a memory leak that I introduced when I removed the extra copy from reader(). If make_strnode_no_copy() returned Null_Word, then a three-byte buffer was leaked. The code now frees that buffer.

Add logic to parse the command-line. No action is taken based on this, yet.

Add additional tests for the command-line parsing, including tests for parsing the width and height parameters.

Fix an invalid memory read bug that only recently became a problem due to the change that accepts files on the command-line. Basically, the logic would read memory beyond the end of the command line when a "-L" was given, but it would ignore all of the input until it found a NUL. After my last change, FMSLogo no longer ignored this memory, so it became more obvious that something bad was happening. I suppose this could explain some strange behavior whenever the -L parameter was given, but I have never seen any problems that I would blame on this bug.

Fix an inconsistency in the wording of a feature request.

Implement request #1423937; FMSLogo no longer requires the -L on the command line to load a logo file on startup. This makes it easier to create file associations and allows you to drag-and-drop a Logo program on an FMSLogo desktop shortcut.

Add some simple tests for the command-line processing logic.

Rename "commandarg" to "g_FileToLoad" to be more explicit about its intended purpose.

Fix an inaccurate comment.