Starting checklist for exploring goswat implementation.
Basic Tcl parser and unit tests.
Working Tcl interpreter and parser, with unit tests.
Formatting with gofmt
Some commands and more interpreter support.
Initial expression evaluator effort, handles numeric literals.
Adding string substitution in new eval file.
Helps if I add the new eval code...
Fixing ErrorString reference
More things to do.
Working plus and minus operators, string and numeric values, variable references.
Working multiply, divide, and remainder operators.
Fixed formatting with gofmt.
Consolidate the operator unit tests and operator code.
Adding container/vector since using anything else was too frustrating.
Use the new built-in Go error type.
Errno moved to syscall package.
Updated to latest strconv method names.
Updating to support rune type
New lexer based on Rob Pike's Lexical Scanning in Go