Merge pull request #1273 from samtrion/patch-1

regexp.md

@@ -5,7 +5,8 @@ layout: 2017/sheet
 weight: -1
 authors:
   - github: rizqyhi
-updated: 2019-03-24
+  - github: samtrion
+updated: 2019-11-14
 description: |
   Basic cheatsheets for regular expression
 ---
@@ -17,7 +18,7 @@ description: |
 ### Character classes
 
 | Pattern  | Description                          |
-| ------- | ------------------------------ |
+| -------- | ------------------------------------ |
 | `.`      | Any character, except newline        |
 | `\w`     | Word                                 |
 | `\d`     | Digit                                |
@@ -28,6 +29,7 @@ description: |
 | `[abc]`  | Any of a, b, or c                    |
 | `[a-e]`  | Characters between `a` and `e`       |
 | `[1-9]`  | Digit between `1` and `9`            |
+| `[^abc]` | Any character except `a`, `b` or `c` |
 
 ### Anchors