FMSLogo Code

Add clearer explanation to LABELSIZE based on the investigation for the fix of Bug #469--specifically the interaction between LABELSIZE and the turtle's orientation.

Implement feature #89; Make -F (with no -W or -H) start FMSLogo maximized and make the drawable surface as large as possible to match the screen window.

Add regression tests for LABELSIZE, including tests for bug #469.

Fix bug #469; LABELSIZE no longer changes its output depending on when LABEL was last run.

Implement feature #89; Make -F (with no -W or -H) start FMSLogo maximized and make the drawable surface as large as possible to match the screen window.

Further improvement for feature #89; When FMSLogo is started with -F, then whenever its maximized, reset the splitter position to show the entire screen window, despite where the user may have moved it.

Implement feature #89; Make -F (with no -W or -H) start FMSLogo maximized and make the drawable surface as large as possible to match the screen window.

Fix a typo where "height" was reported as "width". Also document the interaction between -F and -W/-H.

Remove unneeded code for setting the bitmap dimensions when "-F" is given during command-line processing. These were overwritten later, so having the code was simply misleading.

Fix bug #398; the command line processing now doesn't increment past the final NUL terminator of the command line string when the command-line ends in -E, -P, or -F. The bug is that these incremented the pointer twice, once past what it presumed would be a space, but was really the NUL terminator, then once again to get to the next command-line parameter. If the command line were a multiple of 8 characters, then the memory past the NUL would be unallocated (by probably mapped) memory which FMSLogo would attempt to interpret as a command-line. For some reason, the four bytes after the command line always began with an 'F', although looking at it in the debugger, it did not look like a string.

My fix is to stop when it reach the NUL, instead of incrementing past it. This retains the backward-compatible (and silly) behavior of ignoring any single character after these parameters.