Current Dev State

static/js/ketcher2/node_modules/circular-json/build/circular-json.max.js

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+/*!
+Copyright (C) 2013 by WebReflection
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+*/
+var CircularJSON = (function(JSON, RegExp){
+var
+  // should be a not so common char
+  // possibly one JSON does not encode
+  // possibly one encodeURIComponent does not encode
+  // right now this char is '~' but this might change in the future
+  specialChar = '~',
+  safeSpecialChar = '\\x' + (
+    '0' + specialChar.charCodeAt(0).toString(16)
+  ).slice(-2),
+  escapedSafeSpecialChar = '\\' + safeSpecialChar,
+  specialCharRG = new RegExp(safeSpecialChar, 'g'),
+  safeSpecialCharRG = new RegExp(escapedSafeSpecialChar, 'g'),
+
+  safeStartWithSpecialCharRG = new RegExp('(?:^|([^\\\\]))' + escapedSafeSpecialChar),
+
+  indexOf = [].indexOf || function(v){
+    for(var i=this.length;i--&&this[i]!==v;);
+    return i;
+  },
+  $String = String  // there's no way to drop warnings in JSHint
+                    // about new String ... well, I need that here!
+                    // faked, and happy linter!
+;
+
+function generateReplacer(value, replacer, resolve) {
+  var
+    path = [],
+    all  = [value],
+    seen = [value],
+    mapp = [resolve ? specialChar : '[Circular]'],
+    last = value,
+    lvl  = 1,
+    i
+  ;
+  return function(key, value) {
+    // the replacer has rights to decide
+    // if a new object should be returned
+    // or if there's some key to drop
+    // let's call it here rather than "too late"
+    if (replacer) value = replacer.call(this, key, value);
+
+    // did you know ? Safari passes keys as integers for arrays
+    // which means if (key) when key === 0 won't pass the check
+    if (key !== '') {
+      if (last !== this) {
+        i = lvl - indexOf.call(all, this) - 1;
+        lvl -= i;
+        all.splice(lvl, all.length);
+        path.splice(lvl - 1, path.length);
+        last = this;
+      }
+      // console.log(lvl, key, path);
+      if (typeof value === 'object' && value) {
+    	// if object isn't referring to parent object, add to the
+        // object path stack. Otherwise it is already there.
+        if (indexOf.call(all, value) < 0) {
+          all.push(last = value);
+        }
+        lvl = all.length;
+        i = indexOf.call(seen, value);
+        if (i < 0) {
+          i = seen.push(value) - 1;
+          if (resolve) {
+            // key cannot contain specialChar but could be not a string
+            path.push(('' + key).replace(specialCharRG, safeSpecialChar));
+            mapp[i] = specialChar + path.join(specialChar);
+          } else {
+            mapp[i] = mapp[0];
+          }
+        } else {
+          value = mapp[i];
+        }
+      } else {
+        if (typeof value === 'string' && resolve) {
+          // ensure no special char involved on deserialization
+          // in this case only first char is important
+          // no need to replace all value (better performance)
+          value = value .replace(safeSpecialChar, escapedSafeSpecialChar)
+                        .replace(specialChar, safeSpecialChar);
+        }
+      }
+    }
+    return value;
+  };
+}
+
+function retrieveFromPath(current, keys) {
+  for(var i = 0, length = keys.length; i < length; current = current[
+    // keys should be normalized back here
+    keys[i++].replace(safeSpecialCharRG, specialChar)
+  ]);
+  return current;
+}
+
+function generateReviver(reviver) {
+  return function(key, value) {
+    var isString = typeof value === 'string';
+    if (isString && value.charAt(0) === specialChar) {
+      return new $String(value.slice(1));
+    }
+    if (key === '') value = regenerate(value, value, {});
+    // again, only one needed, do not use the RegExp for this replacement
+    // only keys need the RegExp
+    if (isString) value = value .replace(safeStartWithSpecialCharRG, '$1' + specialChar)
+                                .replace(escapedSafeSpecialChar, safeSpecialChar);
+    return reviver ? reviver.call(this, key, value) : value;
+  };
+}
+
+function regenerateArray(root, current, retrieve) {
+  for (var i = 0, length = current.length; i < length; i++) {
+    current[i] = regenerate(root, current[i], retrieve);
+  }
+  return current;
+}
+
+function regenerateObject(root, current, retrieve) {
+  for (var key in current) {
+    if (current.hasOwnProperty(key)) {
+      current[key] = regenerate(root, current[key], retrieve);
+    }
+  }
+  return current;
+}
+
+function regenerate(root, current, retrieve) {
+  return current instanceof Array ?
+    // fast Array reconstruction
+    regenerateArray(root, current, retrieve) :
+    (
+      current instanceof $String ?
+        (
+          // root is an empty string
+          current.length ?
+            (
+              retrieve.hasOwnProperty(current) ?
+                retrieve[current] :
+                retrieve[current] = retrieveFromPath(
+                  root, current.split(specialChar)
+                )
+            ) :
+            root
+        ) :
+        (
+          current instanceof Object ?
+            // dedicated Object parser
+            regenerateObject(root, current, retrieve) :
+            // value as it is
+            current
+        )
+    )
+  ;
+}
+
+function stringifyRecursion(value, replacer, space, doNotResolve) {
+  return JSON.stringify(value, generateReplacer(value, replacer, !doNotResolve), space);
+}
+
+function parseRecursion(text, reviver) {
+  return JSON.parse(text, generateReviver(reviver));
+}
+return {
+  stringify: stringifyRecursion,
+  parse: parseRecursion
+};
+}(JSON, RegExp));