Improve authors (#2025)

* Links for authors and multiple authors

Favour ';' as a separator instead of ',' to better cope with
multi-author scientific articles.
Follow-up of https://github.com/FreshRSS/FreshRSS/pull/1997 ,
https://github.com/FreshRSS/FreshRSS/issues/1968,
https://github.com/FreshRSS/FreshRSS/pull/2023

* Change i18n authors

* Update layout

* Unicode-compatible search

Example for `author:Loïc`

* author <em> styling

* Final details

* Minor spacing

3 files changed, 40 insertions, 11 deletions

diff --git a/app/views/index/normal.phtml b/app/views/index/normal.phtml
index c7cab2d3f..e659509f9 100644
--- a/app/views/index/normal.phtml
+++ b/app/views/index/normal.phtml
@@ -67,10 +67,19 @@ if (!empty($this->entries)) {
 		?><div class="flux_content">
 			<div class="content <?php echo $content_width; ?>">
 				<h1 class="title"><a target="_blank" rel="noreferrer" class="go_website" href="<?php echo $this->entry->link(); ?>"><?php echo $this->entry->title(); ?></a></h1>
-				<?php
-					$author = $this->entry->author();
-					echo $author != '' ? '<div class="author">' . _t('gen.short.by_author', $author) . '</div>' : '',
-						$lazyload && $hidePosts ? lazyimg($this->entry->content()) : $this->entry->content();
+				<div class="author"><?php
+					$authors = $this->entry->authors();
+					if (is_array($authors)):
+						$first = true;
+						foreach ($authors as $author):
+							echo $first ? _t('gen.short.by_author') . ' ' : '· ';
+							$first = false;
+				?>
+<em><a href="<?php echo _url('index', 'index', 'search', 'author:' . str_replace(' ', '+', htmlspecialchars_decode($author, ENT_QUOTES))); ?>"><?php echo $author; ?></a></em>
+				<?php	endforeach; ?>
+				</div><?php
+					endif;
+					echo $lazyload && $hidePosts ? lazyimg($this->entry->content()) : $this->entry->content();
 				?>
 			</div><?php
 
diff --git a/app/views/index/reader.phtml b/app/views/index/reader.phtml
index eb6613b28..a92767f1c 100644
--- a/app/views/index/reader.phtml
+++ b/app/views/index/reader.phtml
@@ -39,9 +39,19 @@ if (!empty($this->entries)) {
 				<h1 class="title"><a target="_blank" rel="noreferrer" class="go_website" href="<?php echo $item->link(); ?>"><?php echo $item->title(); ?></a></h1>
 
 				<div class="author"><?php
-					$author = $item->author();
-					echo $author != '' ? _t('gen.short.by_author', $author) . ' — ' : '',
-						$item->date();
+					$authors = $item->authors();
+					if (is_array($authors)):
+						$first = true;
+						foreach ($authors as $author):
+							echo $first ? _t('gen.short.by_author') . ' ' : '· ';
+							$first = false;
+				?>
+<em><a href="<?php echo _url('index', 'index', 'search', 'author:' . str_replace(' ', '+', htmlspecialchars_decode($author, ENT_QUOTES))); ?>"><?php echo $author; ?></a></em>
+				<?php
+						endforeach;
+						echo ' — ';
+					endif;
+					echo $item->date();
 				?></div>
 
 				<?php echo $item->content(); ?>
diff --git a/app/views/index/rss.phtml b/app/views/index/rss.phtml
index 86074517c..104e03d15 100755
--- a/app/views/index/rss.phtml
+++ b/app/views/index/rss.phtml
@@ -13,10 +13,20 @@ foreach ($this->entries as $item) {
 		<item>
 			<title><?php echo $item->title(); ?></title>
 			<link><?php echo $item->link(); ?></link>
-			<?php $author = $item->author(); ?>
-			<?php if ($author != '') { ?>
-			<dc:creator><?php echo $author; ?></dc:creator>
-			<?php } ?>
+			<?php
+				$authors = $item->authors();
+				if (is_array($authors)) {
+					foreach ($authors as $author) {
+						echo "\t\t\t" , '<author>', $author, '</author>', "\n";
+					}
+				}
+				$categories = $item->tags();
+				if (is_array($categories)) {
+					foreach ($categories as $category) {
+						echo "\t\t\t" , '<category>', $category, '</category>', "\n";
+					}
+				}
+			?>
 			<description><![CDATA[<?php
 	echo $item->content();
 ?>]]></description>