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// 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.
toJSON.subs = {'\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f',
'\r': '\\r', '"' : '\\"', '\\': '\\\\'};
toJSON.dispatcher = {
"Array": function(v) {
var buf = [];
for (var i = 0; i < v.length; i++) {
buf.push(toJSON(v[i]));
}
return "[" + buf.join(",") + "]";
},
"Boolean": function(v) {
return v.toString();
},
"Date": function(v) {
var f = function(n) { return n < 10 ? '0' + n : n };
return '"' + v.getUTCFullYear() + '-' +
f(v.getUTCMonth() + 1) + '-' +
f(v.getUTCDate()) + 'T' +
f(v.getUTCHours()) + ':' +
f(v.getUTCMinutes()) + ':' +
f(v.getUTCSeconds()) + 'Z"';
},
"Number": function(v) {
return isFinite(v) ? v.toString() : "null";
},
"Object": function(v) {
//if (v === null) return "null";
var buf = [];
for (var k in v) {
if (!v.hasOwnProperty(k) || typeof(k) !== "string" || v[k] === undefined) {
continue;
}
buf.push(toJSON(k) + ": " + toJSON(v[k]));
}
return "{" + buf.join(",") + "}";
},
"String": function(v) {
if (/["\\\x00-\x1f]/.test(v)) {
v = v.replace(/([\x00-\x1f\\"])/g, function(a, b) {
var c = toJSON.subs[b];
if (c) return c;
c = b.charCodeAt();
return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
});
}
return '"' + v + '"';
}
};
function toJSON(val) {
if (typeof(val) == "undefined") {
throw "Cannot encode 'undefined' value as JSON";
}
if (typeof(val) == "xml") { // E4X support
val = val.toXMLString();
}
if (val === null) { return "null"; }
return (toJSON.dispatcher[val.constructor.name])(val);
}
function compileFunction(source) {
try {
var functionObject = sandbox ? evalcx(source, sandbox) : eval(source);
} catch (err) {
throw {error: "compilation_error",
reason: err.toString() + " (" + source + ")"};
}
if (typeof(functionObject) == "function") {
return functionObject;
} else {
throw {error: "compilation_error",
reason: "expression does not eval to a function. (" + source + ")"};
}
}
function recursivelySeal(obj) {
seal(obj);
for (var propname in obj) {
if (typeof doc[propname] == "object") {
recursivelySeal(doc[propname]);
}
}
}
// prints the object as JSON, and rescues and logs any toJSON() related errors
function respond(obj) {
try {
print(toJSON(obj));
} catch(e) {
log("Error converting object to JSON: " + e.toString());
}
};
log = function(message) {
// return;
if (typeof message == "undefined") {
message = "Error: attempting to log message of 'undefined'.";
} else if (typeof message != "string") {
message = toJSON(message);
}
respond(["log", message]);
};
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