# XMLLint Processor

## Purpose

Validates XML files using [xmllint](http://xmlsoft.org/xmllint.html).

## How It Works

Discovers `.xml` files in the project (excluding common build tool directories),
runs `xmllint --noout` on each file, and records success in the cache. A non-zero
exit code from xmllint fails the product.

This processor supports batch mode.

## Source Files

- Input: `**/*.xml`
- Output: none (checker)

## Configuration

```toml
[processor.xmllint]
args = []
extra_inputs = []
```

| Key | Type | Default | Description |
|-----|------|---------|-------------|
| `args` | string[] | `[]` | Extra arguments passed to xmllint |
| `extra_inputs` | string[] | `[]` | Extra files whose changes trigger rebuilds |
