Adding float-no-zero branch hosted build

2014-03-07 10:55:12 +01:00
parent 84cad42f6d
commit bd9092199b
1664 changed files with 731463 additions and 0 deletions
@@ -0,0 +1,111 @@
+// Copyright 2010 The Closure Library Authors. All Rights Reserved.
+//
+// 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.
+
+/**
+ * @fileoverview Functions for encoding strings according to MIME
+ * standards, especially RFC 1522.
+ */
+goog.provide('goog.i18n.mime');
+goog.provide('goog.i18n.mime.encode');
+
+goog.require('goog.array');
+
+
+/**
+ * Regular expression for matching those characters that are outside the
+ * range that can be used in the quoted-printable encoding of RFC 1522:
+ * anything outside the 7-bit ASCII encoding, plus ?, =, _ or space.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.mime.NONASCII_ = /[^!-<>@-^`-~]/g;
+
+
+/**
+ * Like goog.i18n.NONASCII_ but also omits double-quotes.
+ * @type {RegExp}
+ * @private
+ */
+goog.i18n.mime.NONASCII_NOQUOTE_ = /[^!#-<>@-^`-~]/g;
+
+
+/**
+ * Encodes a string for inclusion in a MIME header. The string is encoded
+ * in UTF-8 according to RFC 1522, using quoted-printable form.
+ * @param {string} str The string to encode.
+ * @param {boolean=} opt_noquote Whether double-quote characters should also
+ *     be escaped (should be true if the result will be placed inside a
+ *     quoted string for a parameter value in a MIME header).
+ * @return {string} The encoded string.
+ */
+goog.i18n.mime.encode = function(str, opt_noquote) {
+  var nonascii = opt_noquote ?
+      goog.i18n.mime.NONASCII_NOQUOTE_ : goog.i18n.mime.NONASCII_;
+
+  if (str.search(nonascii) >= 0) {
+    str = '=?UTF-8?Q?' + str.replace(nonascii,
+        /**
+         * @param {string} c The matched char.
+         * @return {string} The quoted-printable form of utf-8 encoding.
+         */
+        function(c) {
+          var i = c.charCodeAt(0);
+          if (i == 32) {
+            // Special case for space, which can be encoded as _ not =20
+            return '_';
+          }
+          var a = goog.array.concat('', goog.i18n.mime.getHexCharArray(c));
+          return a.join('=');
+        }) + '?=';
+  }
+  return str;
+};
+
+
+/**
+ * Get an array of UTF-8 hex codes for a given character.
+ * @param {string} c The matched character.
+ * @return {!Array.<string>} A hex array representing the character.
+ */
+goog.i18n.mime.getHexCharArray = function(c) {
+  var i = c.charCodeAt(0);
+  var a = [];
+  // First convert the UCS-2 character into its UTF-8 bytes
+  if (i < 128) {
+    a.push(i);
+  } else if (i <= 0x7ff) {
+    a.push(
+        0xc0 + ((i >> 6) & 0x3f),
+        0x80 + (i & 0x3f));
+  } else if (i <= 0xffff) {
+    a.push(
+        0xe0 + ((i >> 12) & 0x3f),
+        0x80 + ((i >> 6) & 0x3f),
+        0x80 + (i & 0x3f));
+  } else {
+    // (This is defensive programming, since ecmascript isn't supposed
+    // to handle code points that take more than 16 bits.)
+    a.push(
+        0xf0 + ((i >> 18) & 0x3f),
+        0x80 + ((i >> 12) & 0x3f),
+        0x80 + ((i >> 6) & 0x3f),
+        0x80 + (i & 0x3f));
+  }
+  // Now convert those bytes into hex strings (don't do anything with
+  // a[0] as that's got the empty string that lets us use join())
+  for (i = a.length - 1; i >= 0; --i) {
+    a[i] = a[i].toString(16);
+  }
+  return a;
+};