API encoding tuning (#2120)

Use only minimal XML->Unicode encoding for articles title.
Follow-up of https://github.com/FreshRSS/FreshRSS/pull/2093

1 files changed, 13 insertions, 8 deletions

diff --git a/lib/lib_rss.php b/lib/lib_rss.php
index 52e4408d2..c445874c8 100644
--- a/lib/lib_rss.php
+++ b/lib/lib_rss.php
@@ -102,16 +102,21 @@ function safe_ascii($text) {
 	return filter_var($text, FILTER_DEFAULT, FILTER_FLAG_STRIP_LOW | FILTER_FLAG_STRIP_HIGH);
 }
 
-function escapeToUnicodeAlternative($text) {
+function escapeToUnicodeAlternative($text, $extended = true) {
 	$text = htmlspecialchars_decode($text, ENT_QUOTES);
+
+	//Problematic characters
+	$problem = array('&', '<', '>');
+	//Use their fullwidth Unicode form instead:
+	$replace = array('＆', '＜', '＞');
+
 	// https://raw.githubusercontent.com/mihaip/google-reader-api/master/wiki/StreamId.wiki
-	return trim(str_replace(
-			//Problematic characters
-			array("'", '"', '^', '<', '>', '?', '&', '\\', '/', ',', ';'),
-			//Use their fullwidth Unicode form instead:
-			array("’", '＂', '＾', '＜', '＞', '？', '＆', '＼', '／', '，', '；'),
-			$text
-		));
+	if ($extended) {
+		$problem += array("'", '"', '^', '?', '\\', '/', ',', ';');
+		$replace += array("’", '＂', '＾', '？', '＼', '／', '，', '；');
+	}
+
+	return trim(str_replace($problem, $replace, $text));
 }
 
 /**