Extract the early model line's fields from a parsed STEP header — this is everything we can know before the full file parse (issue #301 follow-up: "output this as early as possible"). Values are unquoted for display.
The parsed STEP header.
The source buffer size in bytes.
The extracted info (fields undefined when absent).
Extract the early model line's fields from a parsed STEP header — this is everything we can know before the full file parse (issue #301 follow-up: "output this as early as possible"). Values are unquoted for display.