Add \U support to query lexer (#88)

2016-08-22 03:55:12 -05:00
parent 31c735e72c
commit 887411a2a8
2 changed files with 105 additions and 7 deletions
@@ -272,6 +272,23 @@ func (l *queryLexer) lexString() queryLexStateFn {
 				return l.errorf("invalid unicode escape: \\u" + code)
 			}
 			growingString += string(rune(intcode))
+		} else if l.follow("\\U") {
+			l.pos += 2
+			code := ""
+			for i := 0; i < 8; i++ {
+				c := l.peek()
+				l.pos++
+				if !isHexDigit(c) {
+					return l.errorf("unfinished unicode escape")
+				}
+				code = code + string(c)
+			}
+			l.pos--
+			intcode, err := strconv.ParseInt(code, 16, 32)
+			if err != nil {
+				return l.errorf("invalid unicode escape: \\u" + code)
+			}
+			growingString += string(rune(intcode))
 		} else if l.follow("\\") {
 			l.pos++
 			return l.errorf("invalid escape sequence: \\" + string(l.peek()))