Reversing position 2 and 3 on shortcode

Position 2 will now be the alt value. Positions 3 will be the type
value.

Author: jpescador

layouts/shortcodes/img-post.html

@@ -1,44 +1,46 @@
-<!-- params 2-3
-     Can be positional or named
+<!--
+    params 2-4
+    Can be positional or named
 
-     position 0, name: path
+    position 0, name: path
         Can pass in the following values:
             title: will use /img/LinkTitle as the path
             date: will use /img/Year/Month as the path
             /path/to/img: can pass in explicit path to the image
 
-     position 1, name: file
+    position 1, name: file
         Name of the file including the file extension
 
-     position 2, name: type
+    position 2, name: alt
+        Name of the alternate text for the image
+
+    position 3, name: type
         Can pass in the following values:
-            post: places the image centered
+            center: places the image centered
             left: places the image to the left
             right: places the image to the right
-
-     position 3, name: alt
-        Name of the alternate text for the image
 -->
 {{ $numOfParams := len .Params }}
 {{ if and (ge $numOfParams 2) (le $numOfParams 4) }}
     <!-- Check if the Parameter is positional or named
-         which can handle both. If the third parameter is
-         not set then the default value will be post -->
+         which can handle both. -->
     {{ if .IsNamedParams }}
         {{ $.Scratch.Set "path" (.Get "path") }}
         {{ $.Scratch.Set "file" (.Get "file") }}
-        {{ $.Scratch.Set "type" (.Get "type") }}
         {{ $.Scratch.Set "alt"  (.Get "alt") }}
+        {{ $.Scratch.Set "type" (.Get "type") }}
     {{ else }}
-        {{ if ge $numOfParams 2 }}
-            {{ $.Scratch.Set "path" (.Get 0) }}
-            {{ $.Scratch.Set "file" (.Get 1) }}
-            {{ if ge $numOfParams 3 }}
-                {{ $.Scratch.Set "type" (.Get 2) }}
-            {{ end }}
-            {{ if ge $numOfParams 4 }}
-                {{ $.Scratch.Set "alt"  (.Get 3) }}
-            {{ end }}
+        {{ $.Scratch.Set "path" (.Get 0) }}
+        {{ $.Scratch.Set "file" (.Get 1) }}
+        {{ if ge $numOfParams 3 }}
+            {{ $.Scratch.Set "alt" (.Get 2) }}
+        {{ else }}
+            {{ $.Scratch.Set "alt" "" }}
+        {{ end }}
+        {{ if ge $numOfParams 4 }}
+            {{ $.Scratch.Set "type"  (.Get 3) }}
+        {{ else }}
+            {{ $.Scratch.Set "type" "center" }}
         {{ end }}
     {{ end }}
 
@@ -59,8 +61,8 @@
             <img src="{{ $path }}/{{ $file }}" alt="{{ $alt }}" />
         </span>
     {{ else }}
-        <span class="image center-image">
+        <p><span class="image center-image">
             <img src="{{ $path }}/{{ $file }}" alt="{{ $alt }}" />
-        </span>
+        </span></p>
     {{ end }}
 {{ end }}