A moderately refactored version of N. Wirths PL/0 Pascal implementation.
- Changed to use file given on command line instead of reading stdin.
- Divided to units: main, defs, parser, codegen, interpreter.
- Added textual error messages to parser (in addition to error number)
- Added ? (read) and ! (write) functionality.
- Changed some variable and constant names to be (imo) more understandable.
- Project files for Lazarus included.