expose index to bibliography template #19

features/bibtex.feature

@@ -93,9 +93,9 @@ Feature: BibTeX
   @tags @bibliography @config
   Scenario: Simple Bibliography With Custom Template
     Given I have a scholar configuration with:
-      | key                   | value                             |
-      | source                | ./_bibliography                   |
-      | bibliography_template | <abbr>[%{key}]</abbr>%{reference} |
+      | key                   | value                                      |
+      | source                | ./_bibliography                            |
+      | bibliography_template | <abbr>%{index} [%{key}]</abbr>%{reference} |
     And I have a "_bibliography" directory
     And I have a file "_bibliography/references.bib":
       """
@@ -116,7 +116,7 @@ Feature: BibTeX
     Then the _site directory should exist
     And the "_site/scholar.html" file should exist
     And I should see "<i>The Ruby Programming Language</i>" in "_site/scholar.html"
-    And I should see "<abbr>\[ruby\]</abbr><span" in "_site/scholar.html"
+    And I should see "<abbr>1 \[ruby\]</abbr><span" in "_site/scholar.html"
 
   @tags @filter
   Scenario: Filtered Bibliography Loaded From Default Directory

lib/jekyll/scholar/tags/bibliography.rb

@@ -23,8 +23,8 @@ module Jekyll
           end          
         end
 
-        references.map! do |entry|
-          reference = bibliography_tag entry
+        bibliography = references.map.with_index { |entry, index|
+          reference = bibliography_tag(entry, index + 1)
 
           if generate_details?
             reference << link_to(details_link_for(entry),
@@ -32,9 +32,9 @@ module Jekyll
           end
 
           content_tag :li, reference
-        end
+        }.join("\n")
 
-        content_tag :ol, references.join("\n"), :class => config['bibliography_class']
+        content_tag :ol, bibliography, :class => config['bibliography_class']
       end
     end
 

lib/jekyll/scholar/utilities.rb

@@ -102,12 +102,13 @@ module Jekyll
         config['bibliography_template'] || '%{reference}'
       end
 
-      def bibliography_tag(entry)
+      def bibliography_tag(entry, index)
         return missing_reference unless entry
 
         bibliography_template % {
           :reference => reference_tag(entry),
-          :key => entry.key
+          :key => entry.key,
+          :index => index
         }
       end