moved all the logic for shortening with delimiters out of the templat…

…es into generator.js

README.md

@@ -29,7 +29,7 @@ feed:
   hub:
   content:
   content_limit: 140
-  content_limit_delim: ' '
+  content_limit_delim: [".", ":", ",", " "]
 ```
 
 - **type** - Feed type. (atom/rss2)
@@ -38,4 +38,4 @@ feed:
 - **hub** - URL of the PubSubHubbub hubs (Leave it empty if you don't use it)
 - **content** - (optional) set to 'true' to include the contents of the entire post in the feed.
 - **content_limit** - (optional) Default length of post content used in summary. Only used, if **content** setting is false and no custom post description present.
-- **content_limit_delim** - (optional) If **content_limit** is used to shorten post contents, only cut at the last occurrence of this delimiter before reaching the character limit. Not used by default.
+- **content_limit_delim** - (optional) A list of delimiters used to shorten the post content to a feed summary, if **content_limit** is set. If any of the contained delimiters is contained in the post content, cut at its occurence instead of the exact position according to **content_limit**. Delimiters in the list are probed in order for occurrence in the post content. Not used by default.

atom.xml

@@ -30,21 +30,7 @@
     {% elif post.excerpt %}
       {{ post.excerpt }}
     {% elif post.content %}
-      {% set short_content = post.content.substring(0, config.feed.content_limit) %}
-      {% if config.feed.content_limit_delim %}
-        {% set delim_pos = short_content.lastIndexOf(config.feed.content_limit_delim) %}
-	{{ short_content }}
-	{{ short_content.lastIndexOf(config.feed.content_limit_delim) }}
-        {{ delim_pos }}
-	{{ delim_pos > -1 }}
-        {% if delim_pos > -1 %}
-          {{ short_content.substring(0, delim_pos+1) }}
-        {% else %}
-          {{ short_content }}
-        {% endif %}
-      {% else %}
-        {{ short_content }}
-      {% endif %}
+       {{ post.feedShortContent }}
     {% endif %}
     </summary>
     {% for category in post.categories.toArray() %}

lib/generator.js

@@ -4,6 +4,7 @@ var nunjucks = require('nunjucks');
 var env = new nunjucks.Environment();
 var pathFn = require('path');
 var fs = require('fs');
+var hexoutil = require('hexo-util');
 
 env.addFilter('uriencode', function(str) {
   return encodeURI(str);
@@ -21,6 +22,23 @@ module.exports = function(locals) {
 
   var posts = locals.posts.sort('-date');
   if (feedConfig.limit) posts = posts.limit(feedConfig.limit);
+
+  posts.forEach(function(post) {
+	  var safe_content = hexoutil.stripHTML(post.content);
+	  post.feedShortContent = safe_content.substring(0, feedConfig.content_limit);
+
+          if (typeof feedConfig.content_limit_delim != 'undefined') {
+		var delim_pos = -1;
+		for (var ind in feedConfig.content_limit_delim) {
+			var delim = feedConfig.content_limit_delim[ind];
+			delim_pos = post.feedShortContent.lastIndexOf(delim);
+			if (delim_pos > -1) {
+				post.feedShortContent = post.feedShortContent.substring(0, delim_pos+1);
+				break;
+			}
+		}
+	  }
+  });
 
   var url = config.url;
   if (url[url.length - 1] !== '/') url += '/';

rss2.xml

@@ -22,17 +22,7 @@
       {% elif post.excerpt %}
         {{ post.excerpt }}
       {% elif post.content %}
-        {% set short_content = post.content.substring(0, config.feed.content_limit) %}
-        {% if config.feed.content_limit_delim %}
-          {% set delim_pos = short_content.lastIndexOf(config.feed.content_limit_delim) %}
-          {% if delim_pos > -1 %}
-            {{ short_content.substring(0, delim_pos) }}
-          {% else %}
-            {{ short_content }}
-          {% endif %}
-        {% else %}
-          {{ short_content }}
-        {% endif %}
+       {{ post.feedShortContent }}
       {% endif %}
       </description>
       {% if config.feed.content and post.content %}