diff --git a/README.md b/README.md
index 6710e80d..89e5e8ba 100644
--- a/README.md
+++ b/README.md
@@ -475,4 +475,8 @@ This is useful when the document needs to be changed programmatically, but those
 
 ### linkRegExp
 
-This is the regular expression used to automatically mark up links when inserting HTML or after pressing space. You can change it if you want to use a custom regular expression for detecting links, or set to `/[]/` to turn off link detection.
+This is the regular expression used to automatically mark up links when inserting HTML or after pressing space. You can change it if you want to use a custom regular expression for detecting links, or set to `/[]/` to turn off link detection. To append to the existing regex, set it to `linkRegExp.source + '|' + newLinkRegExp`. For compatibility with linkRegExpHandlers use named capture groups (`?<name>`).
+
+### linkRegExpHandlers
+
+This is a map of handlers for different types of matches in linkRegExp. For example, linkRegExp has a named group 'url' that matches urls, and a named group 'email' that matches emails. linkRegExpHandler['url'] and linkRegExpHandler['email'] are functions that take in the matching string and returns what the link should have in its 'href'.
diff --git a/source/Editor.ts b/source/Editor.ts
index 0440229d..c97ba763 100644
--- a/source/Editor.ts
+++ b/source/Editor.ts
@@ -1741,7 +1741,7 @@ class Squire {
         // Only look on boundaries
         '\\b(?:' +
         // Capture group 1: URLs
-        '(' +
+        '(?<url>' +
             // Add links to URLS
             // Starts with:
             '(?:' +
@@ -1775,7 +1775,7 @@ class Squire {
                 '\\([^\\s()<>]+\\)' +
             ')' +
         // Capture group 2: Emails
-        ')|(' +
+        ')|(?<email>' +
             // Add links to emails
             '[\\w\\-.%+]+@(?:[\\w\\-]+\\.)+[a-z]{2,}\\b' +
             // Allow query parameters in the mailto: style
@@ -1788,8 +1788,12 @@ class Squire {
     );
     */
     linkRegExp =
-        /\b(?:((?:(?:ht|f)tps?:\/\/|www\d{0,3}[.]|[a-z0-9][a-z0-9.\-]*[.][a-z]{2,}\/)(?:[^\s()<>]+|\([^\s()<>]+\))+(?:[^\s?&`!()\[\]{};:'".,<>«»“”‘’]|\([^\s()<>]+\)))|([\w\-.%+]+@(?:[\w\-]+\.)+[a-z]{2,}\b(?:[?][^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+(?:&[^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+)*)?))/i;
-
+        /\b(?:(?<url>(?:(?:[a-z+]+:)?\/\/|www\d{0,3}[.]|[a-z0-9][a-z0-9.\-]*[.][a-z]{2,}\/)(?:[^\s()<>]+|\([^\s()<>]+\))+(?:[^\s?&`!()\[\]{};:'".,<>«»“”‘’]|\([^\s()<>]+\)))|(?<email>[\w\-.%+]+@(?:[\w\-]+\.)+[a-z]{2,}\b(?:[?][^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+(?:&[^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+)*)?))/i;
+    linkRegExpHandlers = {
+        'url': (m) => {return /^(?:[a-z+]+:)?\/\//i.test(m)
+                                ? m : 'https://' + m},
+        'email': (m) => {return 'mailto:' + m},
+        'default': (m) => {return m}};
     addDetectedLinks(
         searchInNode: DocumentFragment | Node,
         root?: DocumentFragment | HTMLElement,
@@ -1815,15 +1819,14 @@ class Squire {
                         node,
                     );
                 }
+                let handler = Object.keys(this.linkRegExpHandlers).filter(
+                    key => Object.keys(match.groups).includes(key) && match.groups[key])[0]
+                    || 'default';
                 const child = createElement(
                     'A',
                     Object.assign(
                         {
-                            href: match[1]
-                                ? /^(?:ht|f)tps?:/i.test(match[1])
-                                    ? match[1]
-                                    : 'http://' + match[1]
-                                : 'mailto:' + match[0],
+                            href: this.linkRegExpHandlers[handler](match[0])
                         },
                         defaultAttributes,
                     ),
diff --git a/test/squire.spec.ts b/test/squire.spec.ts
index ad978cfa..38f72510 100644
--- a/test/squire.spec.ts
+++ b/test/squire.spec.ts
@@ -472,9 +472,9 @@ describe('Squire RTE', () => {
             'https://google.com': 'https://google.com/',
             'https://www.google.com': 'https://www.google.com/',
             'https://www.google.com/': 'https://www.google.com/',
-            'https://google.com/?': 'https://google.com/',
-            'https://google.com?': 'https://google.com/',
-            'https://google.com?a': 'https://google.com/?a',
+            'HTTPS://google.com/?': 'https://google.com/', // Test protocol matching
+            'ftp://google.com?': 'ftp://google.com/', // Test protocol matching
+            'redis://google.com?a': 'redis://google.com?a', // Test protocol matching
             'https://google.com?a=': 'https://google.com/?a=',
             'https://google.com?a=b': 'https://google.com/?a=b',
             'https://google.com?a=b?': 'https://google.com/?a=b',
@@ -486,10 +486,15 @@ describe('Squire RTE', () => {
             'https://google.com?a=b&c=d&': 'https://google.com/?a=b&c=d',
             'https://google.com?a=b&c=d&e=': 'https://google.com/?a=b&c=d&e=',
             'https://google.com?a=b&c=d&e=f': 'https://google.com/?a=b&c=d&e=f',
+            'www.google.com': 'https://www.google.com/', // Test prepending protocol
+            'foobar': 'http://localhost/foobar', // Test default handler
+            'search': 'http://localhost/replace', // Test custom handler
         };
 
         Object.keys(LINK_MAP).forEach((input) => {
             it('should auto convert links to anchor: ' + input, () => {
+                editor.linkRegExp = new RegExp(editor.linkRegExp.source + "|(foobar)|(?<extra>search)", editor.linkRegExp.flags);
+                editor.linkRegExpHandlers['extra'] = (m) => {return 'replace'};
                 editor.insertHTML(input);
                 const link = document.querySelector('a')!;
                 expect(link.href).toBe(LINK_MAP[input]);