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[Ruleset Engine] The len() function supports arrays #19606

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Jan 31, 2025
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[Ruleset Engine] The len() function supports arrays #19606

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[Ruleset Engine] The len() function supports arrays
pedrosousa Jan 31, 2025
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pedrosousa Jan 31, 2025
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8 changes: 4 additions & 4 deletions src/content/docs/ruleset-engine/rules-language/functions.mdx
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Expand Up @@ -135,11 +135,11 @@ For example, if `http.request.uri.path` is `"/welcome.html"`, then `ends_with(ht
### `len`

{/* prettier-ignore */}
<code>len(<Type text="String | Bytes" />)</code>: <Type text="Integer" />
<code>len(<Type text="String | Bytes | Array" />)</code>: <Type text="Integer" />

Returns the byte length of a String or Bytes field.
Returns the byte length of a String or Bytes value, or the number of elements in an array.

For example, if `http.host` is `"example.com"`, then `len(http.host)` will return `11`.
For example, if the value of `http.host` is `"example.com"`, then `len(http.host)` will return `11`.

### `lookup_json_integer`

Expand Down Expand Up @@ -348,7 +348,7 @@ url_decode("%2520", "r") will return " "
// Using url_decode() with the any() function:
any(url_decode(http.request.body.form.values[*])[*] contains "an xss attack")

// Using the u option to match a specific alphabet
// Using the u option to match a specific alphabet
url_decode(http.request.uri.path) matches "(?u)\p{Hangul}+"
```

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