From 22fdb41ce6d5532470e06cc7ea766a98b822697e Mon Sep 17 00:00:00 2001
From: Morgan McClure <morgan_mcclure@apple.com>
Date: Mon, 5 Dec 2016 13:53:59 -0800
Subject: [PATCH] Implement the ability to search with true regexes

---
 coffee/lib/abstract-chosen.coffee | 6 +++++-
 public/options.html               | 7 +++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/coffee/lib/abstract-chosen.coffee b/coffee/lib/abstract-chosen.coffee
index bf0e785a1ae..b5e86027d42 100644
--- a/coffee/lib/abstract-chosen.coffee
+++ b/coffee/lib/abstract-chosen.coffee
@@ -36,6 +36,7 @@ class AbstractChosen
     @max_shown_results = @options.max_shown_results || Number.POSITIVE_INFINITY
     @case_sensitive_search = @options.case_sensitive_search || false
     @hide_results_on_select = if @options.hide_results_on_select? then @options.hide_results_on_select else true
+    @escape_special_characters = true
 
   set_default_text: ->
     if @form_field.getAttribute("data-placeholder")
@@ -165,7 +166,10 @@ class AbstractChosen
     results = 0
 
     searchText = this.get_search_text()
-    escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&")
+    if @escape_special_characters
+      escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&")
+    else
+      escapedSearchText = searchText
     regex = this.get_search_regex(escapedSearchText)
     highlightRegex = this.get_highlight_regex(escapedSearchText)
 
diff --git a/public/options.html b/public/options.html
index c64d5a6747f..14f49ad08a6 100644
--- a/public/options.html
+++ b/public/options.html
@@ -137,6 +137,13 @@ <h3>Example:</h3>
             <p>By default Chosen's results are hidden after a option is selected. Setting this option to <code class="language-javascript">false</code> will keep the results open after selection. This only applies to multiple selects.</p>
           </td>
         </tr>
+        <tr>
+          <td>escape_special_characters</td>
+          <td>true</td>
+          <td>
+              <p>By default Chosen's search will escape any special characters. Setting this option to <code class="language-javascript">false</code> will allow the user to entire a javascript regex eg: <code>foo.*bar</code> will now match <code>foobazbar</code></p>
+          </td>
+        </tr>
         <tr>
           <td>rtl</td>
           <td>false</td>