- Add a simple way to specify syntactic ambiguity resolutions in the Grammar (e.g. 'prefer declarations to statements' in C), similar to bison's
dprecconstruct.
- Refactoring: make separate symbol for unexpected characters than for interior error nodes.
- Start running the clang-analyzer on the codebase on Travis-CI.
- Use the Valgrind leak checker to fix the memory leaks in the runtime library.
- Randomize the editing in the language tests, using a seed that can be specified in order to reproduce failures.
- Fix the unintuitive tree that results when ubiquitous tokens are last child of their parent node.
- Use information about nesting depth of tokens like '(' and ')' to make error recovery more accurate.
- Regexp assertions
- '^'
- '$'
- '\b'
- Composing languages
- Rule for referencing named grammar
- Grammar registry object in runtime
- Parsing returns control to parent language
- Indentation tokens