Add std::fs::split

Author: brson

src/lib/fs.rs

@@ -76,6 +76,15 @@ fn make_absolute(p: path) -> path {
     if path_is_absolute(p) { ret p; } else { ret connect(getcwd(), p); }
 }
 
+fn split(p: path) -> [path] {
+    let split1 = str::split(p, os_fs::path_sep as u8);
+    let split2 = [];
+    for s in split1 {
+        split2 += str::split(s, os_fs::alt_path_sep as u8);
+    }
+    ret split2;
+}
+
 // Local Variables:
 // mode: rust;
 // fill-column: 78;

src/test/stdtest/fs.rs

@@ -28,3 +28,39 @@ fn file_is_dir() {
     assert (fs::file_is_dir("."));
     assert (!fs::file_is_dir("test/stdtest/fs.rs"));
 }
+
+fn ps() -> str {
+    fs::path_sep()
+}
+
+fn aps() -> str {
+    "/"
+}
+
+#[test]
+fn split1() {
+    let actual = fs::split("a" + ps() + "b");
+    let expected = ["a", "b"];
+    assert actual == expected;
+}
+
+#[test]
+fn split2() {
+    let actual = fs::split("a" + aps() + "b");
+    let expected = ["a", "b"];
+    assert actual == expected;
+}
+
+#[test]
+fn split3() {
+    let actual = fs::split(ps() + "a" + ps() + "b");
+    let expected = ["a", "b"];
+    assert actual == expected;
+}
+
+#[test]
+fn split4() {
+    let actual = fs::split("a" + ps() + "b" + aps() + "c");
+    let expected = ["a", "b", "c"];
+    assert actual == expected;
+}