Update CHANGELOG.md

CHANGELOG.md

@@ -8,34 +8,72 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Added
 
+- Templates, SpecialPages, and Parts all have access to `path` of type `String` representing the path of the 'source' file: either a text file or a special page. In Templates, the 'source' comes from the path of the Text being rendered; in SpecialPages, this comes from the path of the SpecialPage being rendered (i.e., itself); in Parts, this comes from either the Template or SpecialPage which called the Part. 
+    ```gsp
+    <%
+        // in a template or part when rendering a text at 'home.md'
+        assert path == 'home.md'
+    
+        // in a template or part when rendering a text at 'posts/helloWorld.md'
+        assert path == 'posts/helloWorld.md'
+    
+        // in a special page or part when rendering a special page at 'foo/bar/specialPage.gsp'
+        assert path == 'foo/bar/specialPage.gsp'
+    %>
+    ```
+  [0371d41](https://github.com/JesseBrault0709/ssg/commit/0371d41), [9983685](https://github.com/JesseBrault0709/ssg/commit/9983685), [076bc9b](https://github.com/JesseBrault0709/ssg/commit/076bc9b).
+- Templates, SpecialPages, and Parts all have access to a `urlBuilder` of type [`PathBasedUrlBuilder`](lib/src/main/groovy/com/jessebrault/ssg/url/PathBasedUrlBuilder.groovy) (implementing [`UrlBuilder`](lib/src/main/groovy/com/jessebrault/ssg/url/UrlBuilder.groovy)). Use it like so:
+    ```gsp
+    <%
+        // when path == 'nested/post.whatever'
+        assert urlBuilder.relative('images/test.jpg') == '../images/test.jpg'
+    
+        // when path == 'simple.whatever'
+        assert urlBuilder.relative('images/test.jpg') == 'images/test.jpg'
+    %>
+    ```
+  *Nota bene:* likely will break on Windows since `PathBasedUrlBuilder` currently uses Java's `Path` api and paths would be thusly rendered using Windows-style backslashes. [0371d41](https://github.com/JesseBrault0709/ssg/commit/0371d41).
 - Parts have access to all other parts now via `parts`, an object of type [`EmbeddablePartsMap`](lib/src/main/groovy/com/jessebrault/ssg/part/EmbeddablePartsMap.groovy). For example:
 
     ```gsp
-    // myPart.gsp
-    <% out << parts['otherPart.gsp'].render() %>
+    <% 
+        // myPart.gsp
+        out << parts['otherPart.gsp'].render()
+    %>
     ```
     
   [0e49414](https://github.com/JesseBrault0709/ssg/commit/0e49414).
-- A `tagBuilder` object of type [`DynamicTagBuilder`](lib/src/main/groovy/com/jessebrault/ssg/tagbuilder/DynamicTagBuilder.groovy) is available in Templates, SpecialPages, and Parts.
+- A `tagBuilder` object of type [`DynamicTagBuilder`](lib/src/main/groovy/com/jessebrault/ssg/tagbuilder/DynamicTagBuilder.groovy) (implementing [`TagBuilder`](lib/src/main/groovy/com/jessebrault/ssg/tagbuilder/TagBuilder.groovy)) is available in Templates, SpecialPages, and Parts.
 
-    ```groovy
-    def simpleTag = tagBuilder.test()
-    assert simpleTag == '<test />'
+    ```gsp
+    <%
+        def simpleTag = tagBuilder.test()
+        assert simpleTag == '<test />'
   
-    def tagWithBody = tagBuilder.title 'Hello, World!'
-    assert tagWithBody == '<title>Hello, World!</title>'
+        def tagWithBody = tagBuilder.title 'Hello, World!'
+        assert tagWithBody == '<title>Hello, World!</title>'
     
-    def tagWithAttributes = tagBuilder.meta name: 'og:title', content: 'Hello, World!'
-    assert tagWithAttributes == '<meta name="og:title" content="Hello, World!" />'
+        def tagWithAttributes = tagBuilder.meta name: 'og:title', content: 'Hello, World!'
+        assert tagWithAttributes == '<meta name="og:title" content="Hello, World!" />'
   
-    def tagWithAttributesAndBody = tagBuilder.p([id: 'my-paragraph'], 'Hello, World!')
-    assert tagWithAttributesAndBody == '<p id="my-paragraph">Hello, World!</p>'
+        def tagWithAttributesAndBody = tagBuilder.p([id: 'my-paragraph'], 'Hello, World!')
+        assert tagWithAttributesAndBody == '<p id="my-paragraph">Hello, World!</p>'
+    %>
     ```
     
   This is likely most useful for building simple, one-line html/xml tags. [93687d](https://github.com/JesseBrault0709/ssg/commit/936587d).
 - Parts have a `text` object of type [`EmbeddableText`](lib/src/main/groovy/com/jessebrault/ssg/text/EmbeddableText.groovy). If one is rendering a Part called from anything other than a Template (which has an associated text), this will be `null`. [34d9cd5](https://github.com/JesseBrault0709/ssg/commit/34d9cd5).
 
 ### Breaking Changes
+- The `path` object of type `String`, where it did previously exist, was stripped of its extension when previously referring to Texts or SpecialPages; now, the extension is present. For example:
+    ```gsp
+    <%
+        // suppose we have a text called 'test.md' and we are in a template, special page, or part
+        assert texts['test'] == null
+        assert texts['test.md'] != null
+    %>
+    ```
+  [0371d41](https://github.com/JesseBrault0709/ssg/commit/0371d41).
 - The `text` object in Templates is now an instance of [`EmbeddableText`](lib/src/main/groovy/com/jessebrault/ssg/text/EmbeddableText.groovy) instead of `String`. Thus, one must use `text.render()` to obtain the rendered text. [34d9cd5](https://github.com/JesseBrault0709/ssg/commit/34d9cd5).
 
 ### Deprecated