diff options
Diffstat (limited to 'src/scaladoc/scala/tools/nsc/doc/html/page/JSON.scala')
-rw-r--r-- | src/scaladoc/scala/tools/nsc/doc/html/page/JSON.scala | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/scaladoc/scala/tools/nsc/doc/html/page/JSON.scala b/src/scaladoc/scala/tools/nsc/doc/html/page/JSON.scala new file mode 100644 index 0000000000..5f6cb7e799 --- /dev/null +++ b/src/scaladoc/scala/tools/nsc/doc/html/page/JSON.scala @@ -0,0 +1,56 @@ +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("[", ", ", "]") +} |