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authorEugene Petrenko <eugene.petrenko@gmail.com>2018-09-11 14:03:29 +0300
committerEugene Petrenko <eugene.petrenko@gmail.com>2018-09-11 14:03:29 +0300
commita54070f5db04d05b48c369b211efe044fbc02a8d (patch)
treeaac5889906f49f68c39e1416ea39d4d19bad008e /core/src/main/kotlin/Utilities/Uri.kt
parente29f1c966056b0f7ee31dd9bd7d55f9e526fa7fe (diff)
parent0df19264ccae3d294946caf634ee15eea0c4fe4a (diff)
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Merge remote-tracking branch 'zub/dev-multiplatf' into kotlin-website-jonnyzzz
Diffstat (limited to 'core/src/main/kotlin/Utilities/Uri.kt')
-rw-r--r--core/src/main/kotlin/Utilities/Uri.kt40
1 files changed, 40 insertions, 0 deletions
diff --git a/core/src/main/kotlin/Utilities/Uri.kt b/core/src/main/kotlin/Utilities/Uri.kt
new file mode 100644
index 00000000..9827c624
--- /dev/null
+++ b/core/src/main/kotlin/Utilities/Uri.kt
@@ -0,0 +1,40 @@
+package org.jetbrains.dokka
+
+import java.net.URI
+
+
+fun URI.relativeTo(uri: URI): URI {
+ // Normalize paths to remove . and .. segments
+ val base = uri.normalize()
+ val child = this.normalize()
+
+ fun StringBuilder.appendRelativePath() {
+ // Split paths into segments
+ var bParts = base.path.split('/').dropLastWhile { it.isEmpty() }
+ val cParts = child.path.split('/').dropLastWhile { it.isEmpty() }
+
+ // Discard trailing segment of base path
+ if (bParts.isNotEmpty() && !base.path.endsWith("/")) {
+ bParts = bParts.dropLast(1)
+ }
+
+ // Compute common prefix
+ val commonPartsSize = bParts.zip(cParts).takeWhile { (basePart, childPart) -> basePart == childPart }.count()
+ bParts.drop(commonPartsSize).joinTo(this, separator = "") { "../" }
+ cParts.drop(commonPartsSize).joinTo(this, separator = "/")
+ }
+
+ return URI.create(buildString {
+ if (base.path != child.path) {
+ appendRelativePath()
+ }
+ child.rawQuery?.let {
+ append("?")
+ append(it)
+ }
+ child.rawFragment?.let {
+ append("#")
+ append(it)
+ }
+ })
+} \ No newline at end of file