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Motivate and explain regular expression rules.

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Timo Reimann 2017-03-02 02:10:47 +01:00
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docs/basics.md
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@ -92,6 +92,10 @@ You can use multiple rules by separating them by `;`.
You can optionally enable `passHostHeader` to forward client `Host` header to the backend.
In order to use path regular expressions, you must declare an arbitrarily named variable followed by the colon-separated regular expression, all enclosed in curly braces. Any pattern supported by [Go's regexp package](https://golang.org/pkg/regexp/) may be used. Example: `/posts/{id:[0-9]+}`.
(Note that the variable has no special meaning; however, it is required by gorilla/mux which embeds the regular expression and defines the syntax.)
Here is an example of frontends definition:
```toml