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Links.scala
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Links.scala
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/**
* Copyright (C) 2009-2011 the original author or authors.
* See the notice.md file distributed with this work for additional
* information regarding copyright ownership.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.fusesource.scalate.support
object Links {
/**
* Converts an absolute link rom the root directory to a relative link from the current
* request URI
*/
def convertAbsoluteLinks(link: String, requestUri: String): String = if (link.startsWith("/")) {
var n = link.stripPrefix("/").split('/').toList
var r = requestUri.stripPrefix("/").split('/').toList
// lets strip the common prefixes off
while (n.size > 1 && r.size > 1 && n.head == r.head) {
n = n.tail
r = r.tail
}
val prefix = "../" * (r.size - 1)
n.mkString(prefix, "/", "")
} else {
link
}
}