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package scala.tools.nsc.doc.html.page
import JSONFormat.format
private[page] object JSONFormat {
def format(x: Any): String = x match {
case s: String => s"""\"${quoteString(s)}\""""
case jo: JSONObject => jo.toString
case ja: JSONArray => ja.toString
case other => throw new UnsupportedOperationException(s"Value $other of class ${other.getClass} cannot be formatted.")
}
/** This function can be used to properly quote Strings for JSON output. */
def quoteString(s: String): String = {
val len: Int = s.length
val buf = new StringBuilder(len + len/4)
var i: Int = 0
while (i < len) {
s.apply(i) match {
case '"' => buf ++= "\\\""
case '\\' => buf ++= "\\\\"
case '/' => buf ++= "\\/"
case '\b' => buf ++= "\\b"
case '\f' => buf ++= "\\f"
case '\n' => buf ++= "\\n"
case '\r' => buf ++= "\\r"
case '\t' => buf ++= "\\t"
/* We'll unicode escape any control characters. These include:
* 0x00 -> 0x1f : ASCII Control (C0 Control Codes)
* 0x7f : ASCII DELETE
* 0x80 -> 0x9f : C1 Control Codes
*
* Per RFC4627, section 2.5, we're not technically required to
* encode the C1 codes, but we do to be safe.
*/
case c if ((c >= '\u0000' && c <= '\u001f') || (c >= '\u007f' && c <= '\u009f')) =>
val cint = c.toInt
buf ++= f"\\u$cint%04x"
case c => buf += c
}
i += 1
}
buf.toString()
}
}
/** Represents a JSON Object (map). */
private[page] case class JSONObject(obj: Map[String,Any]) {
override def toString = obj.map({ case (k,v) => format(k) + " : " + format(v) }).mkString("{", ", ", "}")
}
/** Represents a JSON Array (vector). */
private[page] case class JSONArray(vector: Vector[Any]) {
override def toString = vector.map(format).mkString("[", ", ", "]")
}
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