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Refinement of Check Syntax arrows
Add original property to parsed identifiers. This allow Check Syntax …
…to draw arrows.
Added support for greek letters
Special values are now supported.
Added note on handling special values in the parser.
Make the presence of a terminating semi colon optional
Bracket expressions are now correctly read in the DrRacket REPL
Attempting to fix the interaction reader in the REPL
Syntax coloring works
Attempt to get syntax coloring working.