lotuslang/lotus

A toy language/compiler written from scratch in C#

lotus's Issues

Should visitors that accept only values also accept `StatementExpressionNode` ?

Escape sequences in strings and char

Should simple semantic checks be done during parsing, or during semantic analysis ?

Checks like IsName() are pretty simple and don't require any other context; as such, they can be done during parsing.

However, this might make them harder to extend or maintain, and having a weird separation like that may come back to bite us later.

It also might be better to do all the checking at analysis-time, because right now some nodes are valid while others not.

How should GraphMakers be organized ?

Should we put all GraphMakers into the same (partial) class but separate each part (tl/stmt/expr) into different files, each in the right folder ?

Logger doesn't enforce/add consistent punctuation and casing

For example, it'd be nice for the logger to automatically add periods at the end of messages that don't have any, or to make sure that there's no uppercase letter in the middle of a sentence.

Make `LotusError.ExtraNotes` able to use (small) code samples and format them from the logger

We should make it possible for ExtraNotes to contain code sections with e.g. pointed locations or diff-style lines. They'd be formatted by the logger (or some logger helper class) obviously, but probably shouldn't have the same style as the user's invalid code.

Write a README.md file

Migrate `lotus-samples` notes to this repo's wiki

Pre-process text to get rid/replace illegal characters or sequences

For example, replacing \r\n with \n