FMSLogo Code

Implement Search -> Replace in the Simplified Chinese editor

Add missing #include directives which prevented the code from compiling when precompiled headers are not used.

Fix a typo in the banner comment

Fix a bug in Simplified Chinese editor's "Find" functionality where, if the match included a chinese character (that is, a double-byte character), the match selection extended beyond the actual match.

Implement Search -> Find for the Simplified Chinese editor. To make this practically useful, this revision also makes the selection visible even when the editor does not have focus (otherwise you cannot see what was found).

Add a line break to a comment so that it didn't extend beyond 80 characters

Fix a bug in the Simplified Chinese editor where deleting all text with the "Clear All" was not undoable.

Remove an unused ID in the workspace editor.

Fix a problem with the Chinese editor where, immediately after opening, the user could "undo" the editor's contents back to an empty workspace.

Replace the wxStyledTextCtrl implementation of CLogoCodeCtrl with wxTextCtrl for languages that use multi-byte character sets. Neither wxStyledTextCtrl nor wxRichTextCtrl supported these character sets.

This is a step backward in overall functionality (no styling, no printing, no searching, no paren matching), but fixes the basic blocking problem of not being able to use characters from Simplified Chinese in their programs. Some additional enhancements may be made to it, but not many, since that time would be better spent porting FMSLogo to Unicode.