New search engine (#4378)

* New possibility to invoke user queries from a search expression
From the search field: `S:"My query"`.
Can be combined with other filters such as `S:"My query" date:P3d` as long as the user queries do not contain `OR`.
A use-case is to have an RSS filter with a stable address or an external API call with the ability to update the user query.

* Draft of parenthesis logic

* More draft

* Working parenthesis (a OR b) (c OR d)

* Working (A) OR (B)

* Support nested parentheses + unit tests + documentation

* search:MySearch and S:3

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/app/Models/SearchTest.php b/tests/app/Models/SearchTest.php
index b43834147..74c1596f6 100644
--- a/tests/app/Models/SearchTest.php
+++ b/tests/app/Models/SearchTest.php
@@ -297,4 +297,39 @@ class SearchTest extends PHPUnit\Framework\TestCase {
 			),
 		);
 	}
+
+	/**
+	 * @dataProvider provideParentheses
+	 * @param array<string> $values
+	 */
+	public function test__construct_parentheses(string $input, string $sql, $values) {
+		list($filterValues, $filterSearch) = FreshRSS_EntryDAOPGSQL::sqlBooleanSearch('e.', new FreshRSS_BooleanSearch($input));
+		$this->assertEquals($sql, $filterSearch);
+		$this->assertEquals($values, $filterValues);
+	}
+
+	public function provideParentheses() {
+		return [
+			[
+				'f:1 (f:2 OR f:3 OR f:4) (f:5 OR (f:6 OR f:7))',
+				' ((e.id_feed IN (?) )) AND ((e.id_feed IN (?) ) OR (e.id_feed IN (?) ) OR (e.id_feed IN (?) )) AND' .
+					' (((e.id_feed IN (?) )) OR ((e.id_feed IN (?) ) OR (e.id_feed IN (?) ))) ',
+				['1', '2', '3', '4', '5', '6', '7']
+			],
+			[
+				'#tag Hello OR (author:Alice inurl:example) OR (f:3 intitle:World) OR L:12',
+				' ((e.tags LIKE ? AND e.title||e.content LIKE ? )) OR ((e.author LIKE ? AND e.link||e.guid LIKE ? )) OR' .
+					' ((e.id_feed IN (?) AND e.title LIKE ? )) OR ((e.id IN (SELECT et.id_entry FROM `_entrytag` et WHERE et.id_tag IN (?)) )) ',
+				['%tag%','%Hello%','%Alice%','%example%','3','%World%', '12']
+			],
+			[
+				'#tag Hello (author:Alice inurl:example) (f:3 intitle:World) label:Bleu',
+				' ((e.tags LIKE ? AND e.title||e.content LIKE ? )) AND' .
+					' ((e.author LIKE ? AND e.link||e.guid LIKE ? )) AND' .
+					' ((e.id_feed IN (?) AND e.title LIKE ? )) AND' .
+					' ((e.id IN (SELECT et.id_entry FROM `_entrytag` et, `_tag` t WHERE et.id_tag = t.id AND t.name IN (?)) )) ',
+				['%tag%','%Hello%','%Alice%','%example%','3','%World%', 'Bleu']
+			],
+		];
+	}
 }