Tweaks for Vienna RSS (#2093)

* Tweaks for Vienna RSS

https://github.com/FreshRSS/FreshRSS/issues/2091
https://github.com/ViennaRSS/vienna-rss/issues/1197

* Fix get feed by URL

* Fix get item ids returning starred elements

* API add item ids by feed URL

* Add API filter `it`

https://feedhq.readthedocs.io/en/latest/api/reference.html#stream-items-ids

* API add `nt=` filter + refactoring

* No ; prefix for author

https://github.com/FreshRSS/FreshRSS/issues/2091#issuecomment-435562495

* Add id long form prefix and accept short id form

https://github.com/FreshRSS/FreshRSS/issues/2091#issuecomment-435631259

* Fix quote problem

https://github.com/FreshRSS/FreshRSS/issues/2091#issuecomment-435683930

* Isolate bug fix for News+

https://github.com/FreshRSS/FreshRSS/issues/2091#issuecomment-435687041

* Rework encoding conventions

https://github.com/FreshRSS/FreshRSS/issues/2091#issuecomment-437441834

* Unicode escaping alternative

Alternative approach to encode XML special characters and other
problematic characters into their Unicode fullwidth version when we
cannot use HTML-encoding because clients disagree wether they should
HTML-decode or not.
https://github.com/FreshRSS/FreshRSS/issues/2091#issuecomment-436059559

1 files changed, 8 insertions, 0 deletions

diff --git a/app/Models/BooleanSearch.php b/app/Models/BooleanSearch.php
index 6e016f7e9..88eeea73c 100644
--- a/app/Models/BooleanSearch.php
+++ b/app/Models/BooleanSearch.php
@@ -45,6 +45,14 @@ class FreshRSS_BooleanSearch {
 		return $this->searches;
 	}
 
+	public function add($search) {
+		if ($search instanceof FreshRSS_Search) {
+			$this->searches[] = $search;
+			return $search;
+		}
+		return null;
+	}
+
 	public function __toString() {
 		return $this->getRawInput();
 	}