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TODO.md

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[ ] add PEG support, i.e. parse the grammar (keep the lexer anyway) and generate an appropriate parser kernel

  • we use PEG with the lexer, so the lexer spits out tokens. This contrasts with 'true PEG'.

  • we use the jison tool to precalc look-ahead sets; where these can be determined and are max depth 1, we can use the look-ahead set to help the generated parser (LL(1) alike)

[x] add lexer state multiline support a la bison: <state> { ...rules... }

[ ] inline performAction when none of the action code uses variable names which clash with the core. this._$ and this.$ then have to become yyval._$ and yyval.$ and inlining then has to take it from there (some parameters in the call to performAction change names at the interface, so there's more renaming to do there...)

[x] add %parser-type support in parallel to commandline -p

[x] check where the 'main' has gone; --no-main ???

  • ==> CLI option --main: positive logic. Without --main (the default) it's no-main output for all...

[x] report unused grammar rules (which are not referenced by %start nor by any other rule nor are the very first if there's no %start)