Use this parser to convert a string in the named grammar into a structured value while making accepted syntax and failures explicit.

Dataset

Required string input.

Empty entries

Optional string input.

Parse and normalize a list of finite numeric values. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Numeric dataset

The resulting numeric dataset returned as a list.

Normalized dataset

The resulting normalized dataset returned as a string.

• Parsing rules depend on locale, radix, encoding, escaping, duplicate fields, whitespace, overflow, rounding, time zone, units, and ambiguity policy. Successful parsing does not validate business meaning or make untrusted input safe.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Reject trailing or ambiguous content, preserve the original input, schema-validate the parsed value, and test malformed, boundary, and adversarial cases.

• Cache-Control Header Parser

  Tokenize an RFC 9111 Cache-Control header into a record of directives; valueless flags become true and numeric values become numbers.

• Quantity with Unit Parser

  Parse a finite numeric value and preserve its attached unit without converting it.

• Numeric Matrix Parser

  Parse a rectangular numeric matrix from JSON or comma- and space-separated rows.