Uses the SPARQL 1.2 string tokens (which include UCHAR in their patterns).
Applies single-pass decoding of UCHAR and ECHAR sequences so that a backslash
produced by a UCHAR (e.g. \u005C → ) is never re-interpreted as an ECHAR prefix.
Per the SPARQL 1.2 spec exapmles: \u005Cn -> \n
OVERRIDING RULE: S11.string. [155]
Uses the SPARQL 1.2 string tokens (which include UCHAR in their patterns). Applies single-pass decoding of UCHAR and ECHAR sequences so that a backslash produced by a UCHAR (e.g. \u005C → ) is never re-interpreted as an ECHAR prefix. Per the SPARQL 1.2 spec exapmles: \u005Cn -> \n