From 1d3a63d75fce583032333a9d088a0d6d6569f58d Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Sat, 7 Jul 2012 16:09:23 +0200
Subject: o Splitting 'hrefs' so the user can click on any path segment.

---
 package.json    |  6 ++++++
 routes/index.js | 26 ++++++++++++++++++++++++++
 test/split.js   | 44 ++++++++++++++++++++++++++++++++++++++++++++
 views/data.jade |  7 +++++--
 4 files changed, 81 insertions(+), 2 deletions(-)
 create mode 100644 test/split.js

diff --git a/package.json b/package.json
index 3b3c99c..f8a0fcc 100644
--- a/package.json
+++ b/package.json
@@ -11,8 +11,14 @@
     "jade": "~0.26.3",
     "underscore": "~1.3.3"
   },
+  "devDependencies": {
+    "mocha": "1.0.3"
+  },
   "engines": {
     "node": "0.6.x",
     "npm": "1.1.x"
+  },
+  "scripts": {
+    "test": "./node_modules/.bin/mocha"
   }
 }
diff --git a/routes/index.js b/routes/index.js
index fb81a41..cace65e 100644
--- a/routes/index.js
+++ b/routes/index.js
@@ -4,9 +4,35 @@ var collection_json = require('collection_json')
   , util = require('util')
   , _ = require('underscore');
 
+function split(str) {
+  var u = url.parse(str);
+
+  var segments = u.pathname.replace(/\/$/, '').split('/');
+
+  var splits = _.map(_.range(segments.length), function(i) {
+    var x = _.clone(u);
+    x.pathname = _.first(segments, i + 1).join('/');
+    x.search = '';
+    if(i == 0) {
+      return [u.protocol + '//' + u.host, url.format(x)];
+    }
+    else {
+      return ['/' + segments[i], url.format(x)];
+    }
+  });
+
+  if(u.search) {
+    splits.push([(u.pathname.match(/\/$/) ? '/' : '') + u.search, url.format(u)]);
+  }
+
+  return splits;
+}
+exports.split = split;
+
 function urlgenerator(req) {
   var host = req.headers.host;
   return {
+    split: split,
     render: function(u) { return 'http://' + host + '/render?url=' + encodeURIComponent(u)},
     delete: function(referer, u) { return 'http://' + host + '/delete?referer=' + encodeURIComponent(referer) + '&url=' + encodeURIComponent(u)},
     isUrl: function(u) {
diff --git a/test/split.js b/test/split.js
new file mode 100644
index 0000000..4bf8277
--- /dev/null
+++ b/test/split.js
@@ -0,0 +1,44 @@
+var assert = require('assert')
+  , util = require('util')
+  , routes = require('../routes/index.js');
+
+function assertSplit(url, expected) {
+  var actual = routes.split(url);
+  // console.log('actual  ', util.inspect(actual));
+  // console.log('expected', util.inspect(expected));
+  assert.deepEqual(actual, expected);
+}
+
+describe('routes.split', function() {
+  it('http://localhost:123/', function() {
+    assertSplit('http://localhost:123/', [
+      ['http://localhost:123','http://localhost:123']
+    ]);
+  });
+  it('http://localhost:123/foo', function() {
+    assertSplit('http://localhost:123/foo', [
+      ['http://localhost:123','http://localhost:123'],
+      ['/foo','http://localhost:123/foo'],
+    ]);
+  });
+  it('http://localhost:123/foo/', function() {
+    assertSplit('http://localhost:123/foo/', [
+      ['http://localhost:123','http://localhost:123'],
+      ['/foo','http://localhost:123/foo'],
+    ]);
+  });
+  it('http://localhost:123/a?x=1&y=2', function() {
+    assertSplit('http://localhost:123/a?x=1&y=2', [
+      ['http://localhost:123','http://localhost:123'],
+      ['/a','http://localhost:123/a'],
+      ['?x=1&y=2','http://localhost:123/a?x=1&y=2']
+    ]);
+  });
+  it('http://localhost:123/a/?x=1&y=2', function() {
+    assertSplit('http://localhost:123/a/?x=1&y=2', [
+      ['http://localhost:123','http://localhost:123'],
+      ['/a','http://localhost:123/a'],
+      ['/?x=1&y=2','http://localhost:123/a/?x=1&y=2']
+    ]);
+  });
+});
diff --git a/views/data.jade b/views/data.jade
index dd79c12..dda1c55 100644
--- a/views/data.jade
+++ b/views/data.jade
@@ -6,13 +6,16 @@ mixin get_name(link, prefix, i)
   - var prefix = typeof prefix == 'string' ? prefix + ': ' : ''
   |#{prefix + (name || prompt || '#' + i)}
 
+// TODO: Show show a 'copy' button to copy the entire link
 block href
   if typeof href != 'string'
     div: i no href
   else
     div
-      a(href=urlgenerator.render(href)) #{href}
-      |  (opens in explorer)
+      - var splits = urlgenerator.split(href)
+      for split in splits
+        a(href=urlgenerator.render(split[1]), title='Explore #{split[1]}') #{split[0]}
+        | 
 
 block link
   - var href = link.href
-- 
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