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My problem is similar to that described in issues #12348, #14565, #14698: I would like to prevent the I also fully agree with Prettier to not add such a thing as a config option! With other formatters1, it is not uncommon to create custom code (as a plugin, or other form of extension) to achieve this. So, my question is: What is the common solution for tweaking formats like this, which can not be set through config? Any pointers to more detailed explanations (docs, blog post, whatever) would be much appreciated. Footnotes |
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Not via config. Prettier intentionally keeps HTML formatting options very small, and indentation of
But there isn’t a built-in option for “don’t indent |
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Hi, @Potherca! I think this is exactly the kind of case where a Prettier plugin is the right escape hatch. I agree that this probably should not become a new core Prettier option. But if a project wants a specific formatting rule like “do not indent This is basically what I did in It is a Prettier plugin for HTML-heavy classic Handlebars templates. It registers its own parser and printer: export const parsers = {
handlebars: {
parse,
astFormat: "handlebars-ast",
locStart,
locEnd,
},
};
export const printers = {
"handlebars-ast": printer,
};The important part is that the printer owns the formatting decisions. So things like element indentation, attribute formatting, blank lines, raw text handling, For your exact case, I would solve it in the same way: write a small Prettier plugin / custom printer rule that treats root-level You could also try using my plugin for HTML-like files by explicitly mapping those files to its parser, but keep in mind that this is not a drop-in replacement for Prettier’s built-in HTML formatter. It may change more than just I don’t think there are many other good options that fit Prettier’s philosophy:
For more examples, the official Prettier plugins page has a list of community plugins: https://prettier.io/docs/plugins#community-plugins Hope this helps! |
Hi, @Potherca!
I think this is exactly the kind of case where a Prettier plugin is the right escape hatch.
I agree that this probably should not become a new core Prettier option. But if a project wants a specific formatting rule like “do not indent
<head>and<body>under<html>”, then the practical solution is to move that decision into a custom printer.This is basically what I did in
@poliklot/prettier-plugin-handlebars.It is a Prettier plugin for HTML-heavy classic Handlebars templates. It registers its own parser and printer: