[Rules] Update operators.mdx (#18557)

---------

Co-authored-by: Pedro Sousa <[email protected]>

Author: ngayerie

src/content/docs/ruleset-engine/rules-language/operators.mdx

@@ -118,7 +118,7 @@ The Rules language supports these comparison operators:
         </td>
       </tr>
       <tr>
-        <td>Exactly<br />contains</td>
+        <td>Contains</td>
         <td><code>contains</code></td>
         <td></td>
         <td>✅</td>
@@ -129,7 +129,29 @@ The Rules language supports these comparison operators:
         </td>
       </tr>
       <tr>
-        <td>Matches<br />regex*</td>
+        <td>Wildcard<sup>1</sup><br/>(case-insensitive)</td>
+        <td><code>wildcard</code></td>
+        <td></td>
+        <td>✅</td>
+        <td>❌</td>
+        <td>❌</td>
+        <td>
+          <code>http.request.uri.path <strong>wildcard</strong> "/articles/*"</code>
+        </td>
+      </tr>
+      <tr>
+        <td>Strict wildcard<sup>1</sup><br/>(case-sensitive)</td>
+        <td><code>strict wildcard</code></td>
+        <td></td>
+        <td>✅</td>
+        <td>❌</td>
+        <td>❌</td>
+        <td>
+          <code>http.request.uri.path <strong>strict wildcard</strong> "/AdminTeam/*"</code>
+        </td>
+      </tr>
+      <tr>
+        <td>Matches<br />regex<sup>2</sup></td>
         <td><code>matches</code></td>
         <td><code>~</code></td>
         <td>✅</td>
@@ -140,34 +162,45 @@ The Rules language supports these comparison operators:
         </td>
       </tr>
       <tr>
-        <td>Value is in <br />a set of values</td>
+        <td>Is in set of values / list<sup>3</sup></td>
         <td><code>in</code></td>
         <td></td>
         <td>✅</td>
         <td>✅</td>
         <td>✅</td>
         <td>
-          <code>ip.src <strong>in</strong> {"{ 203.0.113.0 203.0.113.1 }"}</code>
+          <code>ip.src <strong>in</strong> {"{ 203.0.113.0 203.0.113.1 }"}</code><br/>
+					<code>ip.src.asnum <strong>in</strong> $&lt;LIST&gt;</code>
         </td>
       </tr>
     </tbody>
   </table>
 </div>
 
-\* _Access to the `matches` operator requires a Cloudflare Business or Enterprise plan._
+{/* prettier-ignore */}
+<sup>1</sup> For more information, refer to [Wildcard matching](#wildcard-matching).<br/>
+<sup>2</sup> Access to the `matches` operator requires a Cloudflare Business or Enterprise plan. For more information, refer to [Regular expression matching](#regular-expression-matching).<br/>
+<sup>3</sup> Currently, not all Cloudflare products support lists in their expressions. For more information on lists, refer to [Inline lists](/ruleset-engine/rules-language/values/#inline-lists) and [Lists](/waf/tools/lists/).
 
 :::caution
 Comparison operators entered using English notation (such as `eq`, `lt`, and `gt`) must be written in lowercase.
 :::
 
 ### Additional operators in the Cloudflare dashboard
 
-The Cloudflare dashboard shows the following functions as operators:
+The Cloudflare dashboard may show the following additional operators, depending on the exact field and the type of rule:
 
 - _starts with_ (corresponding to the [`starts_with()`](/ruleset-engine/rules-language/functions/#starts_with) function): Returns `true` when a string starts with a given substring, and `false` otherwise.
+
 - _ends with_ (corresponding to the [`ends_with()`](/ruleset-engine/rules-language/functions/#ends_with) function): Returns `true` when a string ends with a given substring, and `false` otherwise.
 
-However, when writing your own custom expressions, you must use these functions in function calls, not as operators. For example:
+- _is in list_ (corresponding to `<FIELD> in $<LIST_NAME>`): Returns `true` when the field value is present in the specified [list](/waf/tools/lists/), and `false` otherwise. For more information, refer to [Use lists in expressions](/waf/tools/lists/use-in-expressions/).
+
+- _is not in list_ (corresponding to `not <FIELD> in $<LIST_NAME>`): Returns `true` when the field value is not present in the specified [list](/waf/tools/lists/), and `false` otherwise. For more information, refer to [Use lists in expressions](/waf/tools/lists/use-in-expressions/).
+
+:::note
+
+When writing your own custom expressions, you must use the `starts_with()` and `ends_with()` functions in function calls, not as operators. For example:
 
 ```txt
 # Valid function call
@@ -177,6 +210,8 @@ ends_with(http.request.uri.path, ".html")
 http.request.uri.path ends_with ".html"
 ```
 
+:::
+
 ### Comparing string values
 
 String comparison in rule expressions is case-sensitive. To account for possible variations of string capitalization in an expression, you can use the [`lower()`](/ruleset-engine/rules-language/functions/#lower) function and compare the result with a lowercased string, like in the following example:
@@ -185,9 +220,7 @@ String comparison in rule expressions is case-sensitive. To account for possible
 lower(http.request.uri.path) contains "/wp-login.php"
 ```
 
-:::caution
 Wildcard matching is only supported with the `wildcard` and `strict wildcard` operators, and regular expression matching is only supported with the `matches` operator.
-:::
 
 ### Wildcard matching