Simple draft idea for implementing a facility object for entity char replacement in HTML text

char_entity_replace.scala

// idea for mapping: TODO

  val mapping = """
{	%7B
}	%7D
(	%28
)	%29
<	%3C
>	%3E
?	%3F
/	%2F
\	%22
'	%27
,	%2C
:	%3A
=	%3D
&	%26
\r	%0D
\n	%0A
\s+	+
  """

  def replace(text: String, mapping: String, delimiter: String) = {
    val res = for (l <- mapping.lines.toList; if (!l.trim().equals(""))) yield {
      val e = l.split(delimiter)
      (if (e { 0 }.startsWith("\\") && e { 0 }.length > 1) e { 0 } else Pattern.quote(e { 0 }), e { 1 })
    }
    def repl(txt: String, sbs: List[(String, String)]): String = sbs match {
      case Nil => txt
      case c :: tail => repl(txt.replaceAll(c._1, c._2), tail)
    }
    repl(text, res)
  }

  val boh = replace("ciao\nmondo vediamo se {in qualche modo} funziona!", mapping, "\t")
  println(boh)