1 files changed, 43 insertions, 6 deletions
diff --git a/lib/utils/location.js b/lib/utils/location.js
index ba43644..84a71ad 100644
--- a/lib/utils/location.js
+++ b/lib/utils/location.js
@@ -30,9 +30,14 @@ function normalize(s) {
     return path.normalize(s).replace(/\\/g, '/');
 }
 
-// Convert relative to absolute path
-// dir: directory parent of the file currently in rendering process
-// outdir: directory parent from the html output
+/**
+    Convert relative to absolute path
+
+    @param {String} href
+    @param {String} dir: directory parent of the file currently in rendering process
+    @param {String} outdir: directory parent from the html output
+    @return {String}
+*/
 function toAbsolute(_href, dir, outdir) {
     if (isExternal(_href)) return _href;
     outdir = outdir == undefined? dir : outdir;
@@ -54,17 +59,49 @@ function toAbsolute(_href, dir, outdir) {
     return _href;
 }
 
-// Convert an absolute path to a relative path for a specific folder (dir)
-// ('test/', 'hello.md') -> '../hello.md'
+/**
+    Convert an absolute path to a relative path for a specific folder (dir)
+    ('test/', 'hello.md') -> '../hello.md'
+
+    @param {String} dir: current directory
+    @param {String} file: absolute path of file
+    @return {String}
+*/
 function relative(dir, file) {
     return normalize(path.relative(dir, file));
 }
 
+/**
+    Convert an absolute path to a relative path for a specific folder (dir)
+    ('test/test.md', 'hello.md') -> '../hello.md'
+
+    @param {String} baseFile: current file
+    @param {String} file: absolute path of file
+    @return {String}
+*/
+function relativeForFile(baseFile, file) {
+    return relative(path.dirname(baseFile), file);
+}
+
+/**
+    Compare two paths, return true if they are identical
+    ('README.md', './README.md') -> true
+
+    @param {String} p1: first path
+    @param {String} p2: second path
+    @return {Boolean}
+*/
+function areIdenticalPaths(p1, p2) {
+    return normalize(p1) === normalize(p2);
+}
+
 module.exports = {
+    areIdenticalPaths: areIdenticalPaths,
     isExternal: isExternal,
     isRelative: isRelative,
     isAnchor: isAnchor,
     normalize: normalize,
     toAbsolute: toAbsolute,
-    relative: relative
+    relative: relative,
+    relativeForFile: relativeForFile
 };