diff --git a/core/bootstrap/syntax.factor b/core/bootstrap/syntax.factor
index 19a234319d..74cc2a0a8e 100644
--- a/core/bootstrap/syntax.factor
+++ b/core/bootstrap/syntax.factor
@@ -127,6 +127,14 @@ IN: bootstrap.syntax
         "[=====["
         "[======["
 
+        "factor[["
+        "factor[=["
+        "factor[==["
+        "factor[===["
+        "factor[====["
+        "factor[=====["
+        "factor[======["
+
         "![["
         "![=["
         "![==["
diff --git a/core/factor/authors.txt b/core/factor/authors.txt
new file mode 100644
index 0000000000..7c1b2f2279
--- /dev/null
+++ b/core/factor/authors.txt
@@ -0,0 +1 @@
+Doug Coleman
diff --git a/core/factor/factor.factor b/core/factor/factor.factor
new file mode 100644
index 0000000000..611a14c03f
--- /dev/null
+++ b/core/factor/factor.factor
@@ -0,0 +1,6 @@
+! Copyright (C) 2018 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+IN: factor
+
+TUPLE: factor text ;
+C: <factor> factor
\ No newline at end of file
diff --git a/core/syntax/syntax.factor b/core/syntax/syntax.factor
index ac14a858c3..1bfdff0ce1 100644
--- a/core/syntax/syntax.factor
+++ b/core/syntax/syntax.factor
@@ -5,8 +5,8 @@ classes.algebra.private classes.builtin classes.error
 classes.intersection classes.maybe classes.mixin classes.parser
 classes.predicate classes.singleton classes.tuple
 classes.tuple.parser classes.union combinators compiler.units
-definitions delegate delegate.private effects effects.parser fry
-functors2 generic generic.hook generic.math generic.parser
+definitions delegate delegate.private effects effects.parser factor
+fry functors2 generic generic.hook generic.math generic.parser
 generic.standard hash-sets hashtables hashtables.identity hints
 init interpolate io.pathnames kernel lexer locals.errors
 locals.parser locals.types macros math memoize multiline
@@ -396,6 +396,14 @@ IN: bootstrap.syntax
 
     { "_" "@" } define-fry-specifiers
 
+    "factor[[" [ "]]" parse-multiline-string0 <factor> suffix! ] define-core-syntax
+    "factor[=[" [ "]=]" parse-multiline-string0 <factor> suffix! ] define-core-syntax
+    "factor[==[" [ "]==]" parse-multiline-string0 <factor> suffix! ] define-core-syntax
+    "factor[===[" [ "]===]" parse-multiline-string0 <factor> suffix! ] define-core-syntax
+    "factor[====[" [ "]====]" parse-multiline-string0 <factor> suffix! ] define-core-syntax
+    "factor[=====[" [ "]=====]" parse-multiline-string0 <factor> suffix! ] define-core-syntax
+    "factor[======[" [ "]======]" parse-multiline-string0 <factor> suffix! ] define-core-syntax
+
     "[[" [ "]]" parse-multiline-string0 suffix! ] define-core-syntax
     "[=[" [ "]=]" parse-multiline-string0 suffix! ] define-core-syntax
     "[==[" [ "]==]" parse-multiline-string0 suffix! ] define-core-syntax