diff --git a/syntaxes/fjsx15/literal/string/regex.sublime-syntax b/syntaxes/fjsx15/literal/string/regex.sublime-syntax
index 5ab225a9..aeaf3b41 100644
--- a/syntaxes/fjsx15/literal/string/regex.sublime-syntax
+++ b/syntaxes/fjsx15/literal/string/regex.sublime-syntax
@@ -19,25 +19,43 @@ scope: ...
 
 contexts:
   main:
-    - match: |
-        (?x)
-        \s*/
-        (?=
-          .*?
-          (?<!\\)/
-          [a-z]{0,5}
-        )
-      scope: punctuation.definition.string.begin.js.fjsx15
-      set: regex
-
-  regex:
-    - meta_scope: string.regexp.js.fjsx15
-    - include: Packages/JavaScript/Regular Expressions (JavaScript).sublime-syntax
-    - include: regex-end
-
-  regex-end:
-    - match: (/)([a-z]{0,5})
+    - match: \s*(/)
+      captures:
+        1: >-
+          string.regexp.js.fjsx15
+          punctuation.definition.string.begin.js.fjsx15
+      set: [
+        regex-meta,
+        close-regex,
+        regex-content
+      ]
+
+  close-regex:
+    - match: \s*(/)([a-z]*)
       captures:
         1: punctuation.definition.string.end.js.fjsx15
-        2: regex.flag.js.fjsx15
+        2: keyword.other.flag.js.fjsx15
+      pop: true
+    - match:  (?=\s*\S)
+      push: regex-content
+
+  pop-now:
+    - match: ""
       pop: true
+
+  regex-content:
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/anchor.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/backref.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/backslash.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/capturing-group.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/character-class.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/lookahead.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/negative-lookahead.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/non-capturing-group.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/operator.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/quantifier.sublime-syntax
+    - include: pop-now
+
+  regex-meta:
+    - meta_content_scope: string.regexp.js.fjsx15
+    - include: pop-now
diff --git a/syntaxes/fjsx15/literal/string/regex/anchor.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/anchor.sublime-syntax
new file mode 100644
index 00000000..e747a324
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/anchor.sublime-syntax
@@ -0,0 +1,26 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    # ^ $ \b
+    - match: \s*((?>\\b|\^|\$))
+      captures:
+        1: keyword.control.anchor.regexp.js.fjsx15
+      pop: true
diff --git a/syntaxes/fjsx15/literal/string/regex/backref.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/backref.sublime-syntax
new file mode 100644
index 00000000..6bd553f5
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/backref.sublime-syntax
@@ -0,0 +1,25 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    - match: \s*(\\[1-9][0-9]*)
+      captures:
+        1: keyword.other.back-reference.regexp.js.fjsx15
+      pop: true
diff --git a/syntaxes/fjsx15/literal/string/regex/backslash.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/backslash.sublime-syntax
new file mode 100644
index 00000000..805c0e89
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/backslash.sublime-syntax
@@ -0,0 +1,39 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    # Character classes/sets.
+    - match: (?i)\s*(\\[wsd]|)
+      captures:
+        1: constant.other.character-class.escape.backslash.regexp
+      pop: true
+    # Other escape sequences.
+    - match: |
+        (?x)\s*
+        (\\
+          (?> c[A-Z]
+            | x[\da-fA-F]{2}
+            | u[\da-fA-F]{4}
+            | .
+          )
+        )
+      captures:
+        1: constant.character.escape.backslash.regexp.js.fjsx15
+      pop: true
diff --git a/syntaxes/fjsx15/literal/string/regex/capturing-group.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/capturing-group.sublime-syntax
new file mode 100644
index 00000000..73987cae
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/capturing-group.sublime-syntax
@@ -0,0 +1,41 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    - match: \s*(\()(?!\?)
+      captures:
+        1: punctuation.definition.group.begin.regexp.js.fjsx15
+      set: [ meta, close, regex-content ]
+
+  close:
+    - match: \s*(\))
+      captures:
+        1: punctuation.definition.group.end.regexp.js.fjsx15
+      pop: true
+    - match:  (?=\s*\S)
+      push: regex-content
+
+  meta:
+    - meta_scope: meta.group.regexp.js.fjsx15
+    - match: ""
+      pop: true
+
+  regex-content:
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex.sublime-syntax#regex-content
diff --git a/syntaxes/fjsx15/literal/string/regex/character-class.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/character-class.sublime-syntax
new file mode 100644
index 00000000..f337a4a5
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/character-class.sublime-syntax
@@ -0,0 +1,49 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    - match: \s*((\[)(\^)?)
+      captures:
+        1: constant.other.character-class.regexp.js.fjsx15
+        2: punctuation.definition.character-class.begin.regexp.js.fjsx15
+        3: keyword.operator.negation.regexp.js.fjsx15
+      set: [ close, content ]
+
+  close:
+    - match: (\])
+      captures:
+        1: >-
+          constant.other.character-class.regexp.js.fjsx15
+          punctuation.definition.character-class.end.regexp.js.fjsx15
+      pop: true
+    - match:  (?=\s*\S)
+      push: content
+
+  content:
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/character-class/range.sublime-syntax
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex/backslash.sublime-syntax
+    - match: .
+      scope: constant.other.character-class.regexp.js.fjsx15
+      pop: true
+    - include: pop-now
+
+  pop-now:
+    - match: ""
+      pop: true
diff --git a/syntaxes/fjsx15/literal/string/regex/character-class/range.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/character-class/range.sublime-syntax
new file mode 100644
index 00000000..91e48e86
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/character-class/range.sublime-syntax
@@ -0,0 +1,38 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+variables:
+  possibleRange: |
+    (?> \w
+      | \d
+      | \\
+        (?> c[A-Z]
+          | x[\da-fA-F]{2}
+          | u[\da-fA-F]{4}
+        )
+    )
+
+contexts:
+  main:
+    - match: |
+        (?xi)\s*
+        ({{possibleRange}}-{{possibleRange}})
+      captures:
+        1: constant.other.character-class.range.regexp.js.fjsx15
+      pop: true
diff --git a/syntaxes/fjsx15/literal/string/regex/lookahead.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/lookahead.sublime-syntax
new file mode 100644
index 00000000..bcd8a2fd
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/lookahead.sublime-syntax
@@ -0,0 +1,41 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    - match: \s*(\(\?=)
+      captures:
+        1: punctuation.definition.group.assertion.begin.regexp.js.fjsx15
+      set: [ meta, close, regex-content ]
+
+  close:
+    - match: \s*(\))
+      captures:
+        1: punctuation.definition.group.assertion.end.regexp.js.fjsx15
+      pop: true
+    - match:  (?=\s*\S)
+      push: regex-content
+
+  meta:
+    - meta_scope: meta.group.assertion.look-ahead.regexp.js.fjsx15
+    - match: ""
+      pop: true
+
+  regex-content:
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex.sublime-syntax#regex-content
diff --git a/syntaxes/fjsx15/literal/string/regex/negative-lookahead.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/negative-lookahead.sublime-syntax
new file mode 100644
index 00000000..4869b516
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/negative-lookahead.sublime-syntax
@@ -0,0 +1,41 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    - match: \s*(\(\?!)
+      captures:
+        1: punctuation.definition.group.assertion.begin.regexp.js.fjsx15
+      set: [ meta, close, regex-content ]
+
+  close:
+    - match: \s*(\))
+      captures:
+        1: punctuation.definition.group.assertion.end.regexp.js.fjsx15
+      pop: true
+    - match:  (?=\s*\S)
+      push: regex-content
+
+  meta:
+    - meta_scope: meta.group.assertion.look-ahead.negative.regexp.js.fjsx15
+    - match: ""
+      pop: true
+
+  regex-content:
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex.sublime-syntax#regex-content
diff --git a/syntaxes/fjsx15/literal/string/regex/non-capturing-group.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/non-capturing-group.sublime-syntax
new file mode 100644
index 00000000..aebed3ce
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/non-capturing-group.sublime-syntax
@@ -0,0 +1,41 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    - match: \s*(\(\?:)
+      captures:
+        1: punctuation.definition.group.no-capture.begin.regexp.js.fjsx15
+      set: [ meta, close, regex-content ]
+
+  close:
+    - match: \s*(\))
+      captures:
+        1: punctuation.definition.group.no-capture.end.regexp.js.fjsx15
+      pop: true
+    - match:  (?=\s*\S)
+      push: regex-content
+
+  meta:
+    - meta_scope: meta.group.regexp.js.fjsx15
+    - match: ""
+      pop: true
+
+  regex-content:
+    - include: Packages/Naomi/syntaxes/fjsx15/literal/string/regex.sublime-syntax#regex-content
diff --git a/syntaxes/fjsx15/literal/string/regex/operator.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/operator.sublime-syntax
new file mode 100644
index 00000000..0b8fafc0
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/operator.sublime-syntax
@@ -0,0 +1,25 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    - match: \s*(\|)
+      captures:
+        1: keyword.operator.or.regexp.js.fjsx15
+      pop: true
diff --git a/syntaxes/fjsx15/literal/string/regex/quantifier.sublime-syntax b/syntaxes/fjsx15/literal/string/regex/quantifier.sublime-syntax
new file mode 100644
index 00000000..f8ba44d2
--- /dev/null
+++ b/syntaxes/fjsx15/literal/string/regex/quantifier.sublime-syntax
@@ -0,0 +1,38 @@
+%YAML1.2
+---
+
+# 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.
+
+hidden: true
+
+scope: ...
+
+contexts:
+  main:
+    # Operator quantifier.
+    - match: \s*([*+]?\??)
+      captures:
+        1: keyword.operator.quantifier.regexp.js.fjsx15
+      pop: true
+    # Brace quantifier.
+    - match: |
+        (?x)
+        (\{
+          (?> \d+,\d+
+            | \d+,
+            | \d+
+          )
+        })
+      captures:
+        1: keyword.operator.quantifier.regexp
+      pop: true