docs(dateFilter): add example of string literals in format string

dennishall1 · caitp · commit 7e239f948535 · 2014-08-25T23:18:53.000-04:00
Also changes the wording to include the word "escaped" and "escape", which may help users find the information they're looking for via searching. (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧ Closes angular#8770
diff --git a/src/ng/filter/filters.js b/src/ng/filter/filters.js
@@ -322,8 +322,8 @@ var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+
  *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 pm)
  *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 pm)
  *
- *   `format` string can contain literal values. These need to be quoted with single quotes (e.g.
- *   `"h 'in the morning'"`). In order to output single quote, use two single quotes in a sequence
+ *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.
+ *   `"h 'in the morning'"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence
  *   (e.g. `"h 'o''clock'"`).
  *
  * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or
@@ -343,6 +343,8 @@ var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+
           <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>
        <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:
           <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>
+       <span ng-non-bindable>{{1288323623006 | date:"MM/dd/yyyy 'at' h:mma"}}</span>:
+          <span>{{'1288323623006' | date:"MM/dd/yyyy 'at' h:mma"}}</span><br>
      </file>
      <file name="protractor.js" type="protractor">
        it('should format date', function() {
@@ -352,6 +354,8 @@ var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+
             toMatch(/2010\-10\-2\d \d{2}:\d{2}:\d{2} (\-|\+)?\d{4}/);
          expect(element(by.binding("'1288323623006' | date:'MM/dd/yyyy @ h:mma'")).getText()).
             toMatch(/10\/2\d\/2010 @ \d{1,2}:\d{2}(AM|PM)/);
+         expect(element(by.binding("'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"")).getText()).
+            toMatch(/10\/2\d\/2010 at \d{1,2}:\d{2}(AM|PM)/);
        });
      </file>
    </example>
