Is there a way to exclude files by preprocessing?

I have the following config:

```js
files: [
"index.js",
"lib/**/*.js",
"test/**/*.js",
{pattern: "test/pages/**/*", included: false},
{pattern: "test/**/!(*.js)", included: false}
],
preprocessors: {
"index.js": ["browserify"],
"lib/**/*.js": ["browserify"],
"test/**/*.js": ["browserify"],
"test/pages/**/*": []
},
```

No matter which order I try, I can still require the js files from the "pages" subdirectory in my bundle, which means that they are preprocessed by browserify. Is there a way to exclude them?

Start by tracing how the files and preprocessors configuration match paths, especially the test/pages/**/* exclusion, then check how browserify receives matched files. The issue names no source files or tests, so identify the relevant matching and preprocessing tests before changing behavior. Done means JavaScript files under test/pages are not included in the browserify bundle while the other listed patterns still work.

Written by the indexing model from the issue text.