def escRubyChar()

in unicode_regex/unicode_regex_groups.scala [17:22]

• 5 lines of code
• 9 McCabe index (conditional complexity)

def escRubyChar(cc: Int) = (if (isPrintableChar(cc)) "%c" else if (cc < 0x10000) "\\u%04x" else "\\u{%x}").format(cc)
def escObjCChar(cc: Int) =  (if (isPrintableChar(cc)) "%c" else if (cc < 0x100) "\\x%02x" else if (cc < 0x10000) "\\u%04x" else "\\U%08x").format(cc)
def joinCharClass(items: Seq[String]) = items.mkString(if (items.length > 1) "[" else "", "", if (items.length > 1) "]" else "") 
def joinGroup(items: Seq[String]) = items.mkString(if (items.length > 1) "(?:" else "", "|", if (items.length > 1) ")" else "") 

def formatRanges(rs: Seq[(Int, Int)], esc: Int => String) = rs.flatMap { case (r1, r2) => if (r1 == r2) Seq(esc(r1)) else if (r1 == r2 - 1) Seq(esc(r1), esc(r2)) else Seq(esc(r1), "-", esc(r2)) }