feat: Initial commit after clean slate

1 files changed, 174 insertions, 0 deletions

diff --git a/src/wwwroot/scripts/vendor/cycle.js b/src/wwwroot/scripts/vendor/cycle.js
new file mode 100644
index 0000000..10262a9
--- /dev/null
+++ b/src/wwwroot/scripts/vendor/cycle.js
@@ -0,0 +1,174 @@
+/*
+    cycle.js
+    2018-05-15
+    Public Domain.
+    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
+    This code should be minified before deployment.
+    See http://javascript.crockford.com/jsmin.html
+    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
+    NOT CONTROL.
+*/
+
+// The file uses the WeakMap feature of ES6.
+
+/*jslint eval */
+
+/*property
+    $ref, decycle, forEach, get, indexOf, isArray, keys, length, push,
+    retrocycle, set, stringify, test
+*/
+
+export function decycle(object, replacer) {
+    "use strict";
+
+// Make a deep copy of an object or array, assuring that there is at most
+// one instance of each object or array in the resulting structure. The
+// duplicate references (which might be forming cycles) are replaced with
+// an object of the form
+
+//      {"$ref": PATH}
+
+// where the PATH is a JSONPath string that locates the first occurance.
+
+// So,
+
+//      var a = [];
+//      a[0] = a;
+//      return JSON.stringify(JSON.decycle(a));
+
+// produces the string '[{"$ref":"$"}]'.
+
+// If a replacer function is provided, then it will be called for each value.
+// A replacer function receives a value and returns a replacement value.
+
+// JSONPath is used to locate the unique object. $ indicates the top level of
+// the object or array. [NUMBER] or [STRING] indicates a child element or
+// property.
+
+    var objects = new WeakMap();     // object to path mappings
+
+    return (function derez(value, path) {
+
+// The derez function recurses through the object, producing the deep copy.
+
+        var old_path;   // The path of an earlier occurance of value
+        var nu;         // The new object or array
+
+// If a replacer function was provided, then call it to get a replacement value.
+
+        if (replacer !== undefined) {
+            value = replacer(value);
+        }
+
+// typeof null === "object", so go on if this value is really an object but not
+// one of the weird builtin objects.
+
+        if (
+            typeof value === "object"
+            && value !== null
+            && !(value instanceof Boolean)
+            && !(value instanceof Date)
+            && !(value instanceof Number)
+            && !(value instanceof RegExp)
+            && !(value instanceof String)
+        ) {
+
+// If the value is an object or array, look to see if we have already
+// encountered it. If so, return a {"$ref":PATH} object. This uses an
+// ES6 WeakMap.
+
+            old_path = objects.get(value);
+            if (old_path !== undefined) {
+                return {$ref: old_path};
+            }
+
+// Otherwise, accumulate the unique value and its path.
+
+            objects.set(value, path);
+
+// If it is an array, replicate the array.
+
+            if (Array.isArray(value)) {
+                nu = [];
+                value.forEach(function (element, i) {
+                    nu[i] = derez(element, path + "[" + i + "]");
+                });
+            } else {
+
+// If it is an object, replicate the object.
+
+                nu = {};
+                Object.keys(value).forEach(function (name) {
+                    nu[name] = derez(
+                        value[name],
+                        path + "[" + JSON.stringify(name) + "]",
+                    );
+                });
+            }
+            return nu;
+        }
+        return value;
+    }(object, "$"));
+}
+
+
+export function retrocycle($) {
+    "use strict";
+
+// Restore an object that was reduced by decycle. Members whose values are
+// objects of the form
+//      {$ref: PATH}
+// are replaced with references to the value found by the PATH. This will
+// restore cycles. The object will be mutated.
+
+// The eval function is used to locate the values described by a PATH. The
+// root object is kept in a $ variable. A regular expression is used to
+// assure that the PATH is extremely well formed. The regexp contains nested
+// * quantifiers. That has been known to have extremely bad performance
+// problems on some browsers for very long strings. A PATH is expected to be
+// reasonably short. A PATH is allowed to belong to a very restricted subset of
+// Goessner's JSONPath.
+
+// So,
+//      var s = '[{"$ref":"$"}]';
+//      return JSON.retrocycle(JSON.parse(s));
+// produces an array containing a single element which is the array itself.
+
+    var px = /^\$(?:\[(?:\d+|"(?:[^\\"\u0000-\u001f]|\\(?:[\\"\/bfnrt]|u[0-9a-zA-Z]{4}))*")\])*$/;
+
+    (function rez(value) {
+
+// The rez function walks recursively through the object looking for $ref
+// properties. When it finds one that has a value that is a path, then it
+// replaces the $ref object with a reference to the value that is found by
+// the path.
+
+        if (value && typeof value === "object") {
+            if (Array.isArray(value)) {
+                value.forEach(function (element, i) {
+                    if (typeof element === "object" && element !== null) {
+                        var path = element.$ref;
+                        if (typeof path === "string" && px.test(path)) {
+                            value[i] = eval(path);
+                        } else {
+                            rez(element);
+                        }
+                    }
+                });
+            } else {
+                Object.keys(value).forEach(function (name) {
+                    var item = value[name];
+                    if (typeof item === "object" && item !== null) {
+                        var path = item.$ref;
+                        if (typeof path === "string" && px.test(path)) {
+                            value[name] = eval(path);
+                        } else {
+                            rez(item);
+                        }
+                    }
+                });
+            }
+        }
+    }($));
+    return $;
+}
\ No newline at end of file