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A BNF like parser that uses an object structure as input and includes transformation features.

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BNFDX

A BNF like parser that uses an object structure as input and includes transformation features.

Installation

yarn add bnfdx

Additional Information

What is BNF?

TODO

Error Handling

Syntax Errors:

Unexpected Token: When a token is encountered that doesn't fit the expected grammar. Missing Token: When an expected token is not found. End-of-Input: When the parser reaches the end of the input but hasn't resolved all grammatical structures.

Semantic Errors:

Invalid Token Value: When a token's value is invalid (e.g., an out-of-range number). Undefined Reference: When a token refers to something that hasn't been defined. Duplicate Definition: When a token is defined more than once in a context where that's not allowed.

Recursion Errors:

Infinite Loop: When the parser is stuck in a loop due to recursive rules with no exit condition. Recursion Depth Exceeded: When the parser exceeds a predefined limit of recursive calls.

Resource Errors:

Memory Limit Exceeded: When the parser uses more memory than it's allowed to. Time Limit Exceeded: When the parser takes too long to complete.

Configuration Errors:

Invalid Grammar: When the provided grammar has issues like undefined tokens, circular references, etc. Missing Grammar: When no grammar is provided but is required.

Custom Logic Errors:

Custom Validation Failed: If you have any custom validation rules or hooks, report when they fail.

Environmental Errors:

File Not Found: If the parser reads from a file and it's not found. IO Error: Errors related to reading the input or writing the output. Miscellaneous: Internal Error: For anything that's clearly a bug in the parser. Warning: For non-fatal issues that the user should be aware of. Bonus: Enhancements Error Location: Show where in the input the error occurred, if applicable. Suggestion: Suggest potential fixes or next steps for common errors.

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A BNF like parser that uses an object structure as input and includes transformation features.

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