Extract PUT Annotation Properties

Parses a single line containing a PUT annotation and extracts key-value pairs. Supports flexible syntax with optional spaces and pipe separators. Handles multiple comment prefix styles: # (hash), – (dash), // (slash), % (percent). A value is in double or single quotes and may contain the other kind of quote, but not its own; there are no escapes.

Usage

parse_put_annotation(line)

Arguments

line

Character string containing a PUT annotation

Value

Named list containing all extracted properties, or NULL if invalid. Pairs that could not be read are listed in its attribute unparsed.