libcore|FS: Added utility methods

skyjake · Jan 6, 2017 · 1ecc1ae · 1ecc1ae
1 parent 464401e
commit 1ecc1ae
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diff --git a/doomsday/sdk/libcore/include/de/data/path.h b/doomsday/sdk/libcore/include/de/data/path.h
@@ -409,6 +409,8 @@ class DENG2_PUBLIC Path : public ISerializable, public LogEntry::Arg::Base
      */
     Segment const &reverseSegment(int reverseIndex) const;
 
+    Path subPath(Rangei const &range) const;
+
     /**
      * @return  Total number of segments in the segment map. There is always
      * at least one segment.

diff --git a/doomsday/sdk/libcore/include/de/filesys/filesystem.h b/doomsday/sdk/libcore/include/de/filesys/filesystem.h
@@ -350,6 +350,12 @@ class DENG2_PUBLIC FileSystem : public System
 
     void timeChanged(Clock const &);
 
+public:
+    template <typename T>
+    static T &locate(String const &path) {
+        return FileSystem::get().root().locate<T>(path);
+    }
+
 private:
     DENG2_PRIVATE(d)
 };

diff --git a/doomsday/sdk/libcore/src/data/path.cpp b/doomsday/sdk/libcore/src/data/path.cpp
@@ -322,6 +322,20 @@ Path::Segment const &Path::reverseSegment(int reverseIndex) const
     return *d->extraSegments[reverseIndex - SEGMENT_BUFFER_SIZE];
 }
 
+Path Path::subPath(Rangei const &range) const
+{
+    if (range.isEmpty())
+    {
+        return Path("", d->separator);
+    }
+    Path sub(segment(range.start), d->separator);
+    for (int i = range.start + 1; i < range.end; ++i)
+    {
+        sub = sub / segment(i);
+    }
+    return sub;
+}
+
 bool Path::operator == (Path const &other) const
 {
     if (this == &other) return true;