Imported trunk.

git-svn-id: https://svn.apache.org/repos/asf/incubator/couchdb/trunk@642432 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 60 insertions, 0 deletions

diff --git a/share/www/script/pprint.js b/share/www/script/pprint.js
new file mode 100644
index 00000000..981db0f2
--- /dev/null
+++ b/share/www/script/pprint.js
@@ -0,0 +1,60 @@
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License.  You may obtain a copy
+// of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+/* JSON pretty printing */
+
+function prettyPrintJSON(val, indent, linesep, depth) {
+  indent = indent != null ? indent : 4;
+  linesep = linesep != null ? linesep : "\n";
+  depth = depth != null ? depth : 1;
+  var propsep = linesep.length ? "," + linesep : ", ";
+  var tab = [];
+  for (var i = 0; i < indent * depth; i++) tab.push("");
+  tab = tab.join(" ");
+  switch (typeof val) {
+    case "boolean":
+    case "number":
+    case "string":
+      return JSON.stringify(val);
+    case "object": {
+      if (val === null) return "null";
+      if (val.constructor == Date) return JSON.stringify(val);
+      var buf = [];
+      if (val.constructor == Array) {
+        buf.push("[");
+        for (var index = 0; index < val.length; index++) {
+          buf.push(index > 0 ? propsep : linesep);
+          buf.push(
+            tab, prettyPrintJSON(val[index], indent, linesep, depth + 1)
+          );
+        }
+        if (index >= 0) buf.push(linesep, tab.substr(indent));
+        buf.push("]");
+      } else {
+        buf.push("{");
+        var index = 0;
+        for (var key in val) {
+          if (!val.hasOwnProperty(key)) continue;
+          buf.push(index > 0 ? propsep : linesep);
+          buf.push(
+            tab, JSON.stringify(key), ": ",
+            prettyPrintJSON(val[key], indent, linesep, depth + 1)
+          );
+          index++;
+        }
+        if (index >= 0) buf.push(linesep, tab.substr(indent));
+        buf.push("}");
+      }
+      return buf.join("");
+    }
+  }
+}