1 files changed, 13 insertions, 2 deletions
diff --git a/lib/utils/path.js b/lib/utils/path.js
index c233c92..a4968c8 100644
--- a/lib/utils/path.js
+++ b/lib/utils/path.js
@@ -42,7 +42,7 @@ function resolveInRoot(root) {
     return result;
 }
 
-// Chnage extension
+// Chnage extension of a file
 function setExtension(filename, ext) {
     return path.join(
         path.dirname(filename),
@@ -50,9 +50,20 @@ function setExtension(filename, ext) {
     );
 }
 
+/*
+    Return true if a filename is relative.
+
+    @param {String}
+    @return {Boolean}
+*/
+function isPureRelative(filename) {
+    return (filename.indexOf('./') === 0 || filename.indexOf('../') === 0);
+}
+
 module.exports = {
     isInRoot: isInRoot,
     resolveInRoot: resolveInRoot,
     normalize: normalizePath,
-    setExtension: setExtension
+    setExtension: setExtension,
+    isPureRelative: isPureRelative
 };