Whether this tag participates in resolving plain scalars without an
explicit tag. Default: false.
Whether explicit tag names are matched by prefix instead of exact equality.
Default: false.
Set of source.charAt(0) keys for which resolve may succeed (a superset
of what it really matches). A key is either a single character or '' (empty
source). null means "no constraint, always try". Used by the composer to
dispatch implicit scalars by first character without running every resolver.
Construct a value from scalar text, or return NOT_RESOLVED when it
is invalid for this tag. isExplicit is true for an explicit tag and
tagName is the actual matched name.
Selects this tag for a JavaScript value when dumping. Use () => false
for load-only tags.
A scalar's printed form is text, so represent always yields a string.
The factory supplies a String(data) default when a tag omits it.
Return the tag name to emit for a prefix-matching tag. Defaults to tagName.
Options for defineScalarTag.