dateTimeLexer top-level property

Parser<DateTimeParser> dateTimeLexer
final

Follows DateTime format specified in FHIRPath (I have also updated the FHIR) package to follow many of these guidelines

Implementation

final dateTimeLexer = (char('@') &
        dateFormatLexer &
        char('T') &
        (timeFormatLexer & timeZoneOffsetFormatLexer.optional()).optional())
    .flatten()
    .map((value) => DateTimeParser(value));