Function: classifyVersion()

classifyVersion(raw): VersionClassification

Classify a declared SCRIPT version string.

• A known XML version → known.
• A legacy dotted major (pre-XML, e.g. 10.6) → unsupported (fatal).
• Absent/blank → absent (parse best-effort + warn).
• Anything else present-but-unrecognized → tolerated (parse best-effort + warn), since refusing an odd-but-present version string would violate Postel's Law for a message that is still XML.

Parameters

raw

string | undefined

The version attribute value, or undefined when absent.

Returns

VersionClassification

The VersionClassification.

Example

classifyVersion("2017071"); // { kind: "known", version: "2017071" }
classifyVersion("2099001"); // { kind: "tolerated", version: "2099001" }
classifyVersion("10.6");    // { kind: "unsupported", version: "10.6" }
classifyVersion(undefined); // { kind: "absent" }