Improve `options.regExp` documentation about file-loader HOT 7 CLOSED

Was looking through this today, and it did have me stumped initially as well. What you have to do is supply an additional param of regExp on the query string with the regex you want to match against the source file path.

In my case, my source path is something like src/moduleName/images/image.png, and my build directory is build/modules/moduleName. To have the file loader place the images in build/modules/moduleName/images, the regex and naming I used is: regExp=src\/(.+?)\/&name=[1]/images/[hash].[ext].

The regex isn't perfect, but without spending hours on it, I was unable to generate a matcher that would extract all groups between slashes that started after a particular string.

Anyway, hope this helps someone place files in a subdirectory inside their module entry point!

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After just stumbling with this myself.

You want to use the regExp option, it doesn't use the regExp from the test. [0] in regex is the whole capture, you want the second capture [2].

The regex your using is a little greedy, imagine the name of your import is 'img/animage.jpg'. The regex will get 'img/animage'

The name templage [2]/img/[name].[ext] would then output the file as img/animage/img/animage.jpg

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That didn't work for me... trying to get the query string applied in the file for cache busting icon fonts. Just kept coming out as font.eot?[1] :(

Does url-loader not have it maybe?

{
                test: /\.(eot|ttf|woff|woff2|svg)/i,
                loader: 'url-loader?regExp=\\.[ext]\\?(.+)&limit=1&name=assets/[name].[ext]?[1]
}

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I don't think this is currently supported, I think the readme is taken from https://github.com/webpack/loader-utils

I'd love for this to work as well, as I'd like to place images in sub directories.

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@Benno007 don't think url-loader has this option yet. I'd be happy to be proven wrong though.

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@pixeldrew @leonardoanalista @danahartweg we can implement customInterpolateName from https://github.com/webpack/loader-utils/blob/ddf64e49c5871c7229a5a536656a711479c08516/lib/interpolateName.js#L89 and it is allow to using custom function to set name. Will it help to solve your problem?

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I can't see how having that option would hurt. I was able to fix my issue, perhaps some clearer documentation would also help.

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