rss category support (#1015)

also do a bit fix of [solidot] feed

routes/solidot/main.js

@@ -46,19 +46,14 @@ module.exports = async (ctx) => {
         const cat_img = $(a[i])
             .find('div.icon_float > a')
             .html();
-        const date_raw = $(a[i]).find('div.talk_time');
-        $(date_raw)
-            .find('div.icon_float')
-            .remove();
-        $(date_raw)
-            .find('span.user')
-            .remove();
-        $(date_raw)
-            .find('b')
-            .remove();
-        const date_str_zh = $(date_raw)
-            .text()
-            .replace(/^[^`]*发表于(.*分)[^`]*$/g, '$1'); // use [^`] to match \n
+        const date_raw = $(a[i])
+            .find('div.talk_time')
+            .clone()
+            .children()
+            .remove()
+            .end()
+            .text();
+        const date_str_zh = date_raw.replace(/^[^`]*发表于(.*分)[^`]*$/g, '$1'); // use [^`] to match \n
         const date_str = date_str_zh
             .replace(/[年月]/g, '-')
             .replace(/时/g, ':')

views/atom.art

@@ -59,9 +59,7 @@
         {{ /if }}
 
         {{ if $e.category }}
-        {{ each $e.category $c }}
-        <category term="{{ $c }}"></category>
-        {{ /each }}        
+        <category term="{{ $e.category }}"></category>
         {{ /if }}
         
     </entry>

views/rss.art

@@ -33,6 +33,7 @@
             {{ if $value.enclosure_url }}<enclosure url="{{ $value.enclosure_url }}" length="{{ $value.enclosure_length }}" type="{{ $value.enclosure_type }}" />{{ /if }}
             {{ if $value.itunes_duration }}<itunes:duration>{{ $value.itunes_duration }}</itunes:duration> {{ /if }}
             {{ if $value.author }}<author><![CDATA[{{ $value.author }}]]></author>{{ /if }}
+            {{ if $value.category }}<category>{{ $value.category }}</category>{{ /if }}
         </item>
         {{ /each }}
     </channel>