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// SPDX-FileCopyrightText: 2026 Stefan Majewsky <majewsky@gmx.net>
// SPDX-License-Identifier: Apache-2.0
package pathrouter
import "go.xyrillian.de/gg/options"
// Variable is a [Matcher] that accepts subpaths with at least one path element.
// The value of the first path element will be collected into vars[name],
// and the remaining subpath will have to be accepted by the next matcher.
func Variable(name string, matcher Matcher) Matcher {
return variable(name, matcher.downcast())
}
func variable(name string, matcher realMatcher) Matcher {
return realMatcher{
minLength: matcher.minLength + 1,
maxLength: options.Map(matcher.maxLength, increment),
accept: func(path []string, vars map[string]string) HandlerFunc {
if len(path) == 0 || path[0] == "" {
return nil
}
handlerFunc := matcher.accept(path[1:], vars)
if handlerFunc == nil {
return nil
}
vars[name] = pathUnescape(path[0])
return handlerFunc
},
}
}
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