document non-capturing groups (closes #143)

This commit is contained in:
Oliver Tonnhofer
2016-09-20 16:06:56 +02:00
parent 0a192a1931
commit 14f5df0128

4
doc.go
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@@ -47,6 +47,10 @@ variable will be anything until the next slash. For example:
r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler)
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
Groups can be used inside patterns, as long as they are non-capturing (?:re). For example:
r.HandleFunc("/articles/{category}/{sort:(?:asc|desc|new)}", ArticlesCategoryHandler)
The names are used to create a map of route variables which can be retrieved
calling mux.Vars():