New feed mode: HTML + XPath + JSON dot notation (JSON in HTML) (#6888)

* New feed mode: HTML + XPath + JSON dot notation (JSON in HTML)
Same as `JSON+DotNotation` but first extracting the JSON string from an HTML document thanks to an XPath expression.
Example: `//script[@type='application/json']`
fix https://github.com/FreshRSS/FreshRSS/discussions/6876

* JavaScript UI to show/hide new field

* Casing xPathToJson

* Slight renaming

24 files changed, 189 insertions, 21 deletions

diff --git a/app/i18n/cs/sub.php b/app/i18n/cs/sub.php
index cb9bd02c6..c60f47f95 100644
--- a/app/i18n/cs/sub.php
+++ b/app/i18n/cs/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimální počet článků pro ponechání',
 		'kind' => array(
 			'_' => 'Typ zdroje feedu',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'JSON s tečkovým zápisem používá tečky mezi objekty a závorky pro pole. (e.g. <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'vyhledávání nových <strong>položek</strong><br /><small>(nejdůležitější)</small>',
-					'help' => 'JSON cesta k poli obsahujícímu položky, např.: <code>newsItems</code>',
+					'help' => 'JSON cesta k poli obsahujícímu položky, např.: <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => 'autor položky',
 				'item_categories' => 'štítky položky',
diff --git a/app/i18n/de/sub.php b/app/i18n/de/sub.php
index e9be33cf6..b8fba0a7e 100644
--- a/app/i18n/de/sub.php
+++ b/app/i18n/de/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimale Anzahl an Artikeln, die behalten wird',
 		'kind' => array(
 			'_' => 'Art der Feed-Quelle',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Webseite scannen)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'JSON punktnotiert nutzt Punkte zwischen den Objekten und eckige Klammern für Arrays (e.g. <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'News <strong>Items</strong> finden<br /><small>(sehr wichtig)</small>',
-					'help' => 'JSON-Pfad zum Array, das die Items enthält, z.B. <code>newsItems</code>',
+					'help' => 'JSON-Pfad zum Array, das die Items enthält, z.B. <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => 'Item Autor',
 				'item_categories' => 'Item Hashtags',
diff --git a/app/i18n/el/sub.php b/app/i18n/el/sub.php
index 80f420811..47e442b13 100644
--- a/app/i18n/el/sub.php
+++ b/app/i18n/el/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimum number of articles to keep',	// TODO
 		'kind' => array(
 			'_' => 'Type of feed source',	// TODO
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// TODO
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',	// TODO
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// TODO
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// TODO
 				),
 				'item_author' => 'item author',	// TODO
 				'item_categories' => 'item tags',	// TODO
diff --git a/app/i18n/en-us/sub.php b/app/i18n/en-us/sub.php
index 7f4469ff1..93e7bf21b 100644
--- a/app/i18n/en-us/sub.php
+++ b/app/i18n/en-us/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimum number of articles to keep',	// IGNORE
 		'kind' => array(
 			'_' => 'Type of feed source',	// IGNORE
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// IGNORE
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// IGNORE
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// IGNORE
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// IGNORE
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',	// IGNORE
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// IGNORE
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// IGNORE
 				),
 				'item_author' => 'item author',	// IGNORE
 				'item_categories' => 'item tags',	// IGNORE
diff --git a/app/i18n/en/sub.php b/app/i18n/en/sub.php
index f514df5f3..ca4da3409 100644
--- a/app/i18n/en/sub.php
+++ b/app/i18n/en/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimum number of articles to keep',
 		'kind' => array(
 			'_' => 'Type of feed source',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',
 				),
 				'item_author' => 'item author',
 				'item_categories' => 'item tags',
diff --git a/app/i18n/es/sub.php b/app/i18n/es/sub.php
index cfb2bf550..268a520cc 100644
--- a/app/i18n/es/sub.php
+++ b/app/i18n/es/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Número mínimo de artículos a conservar',
 		'kind' => array(
 			'_' => 'Tipo de origen de la fuente',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'Un punto JSON anotado utiliza puntos entre objetos y corchetes para matrices (ejemplo: <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'buscando nuevos <strong>items</strong><br /><small>(más importante)</small>',
-					'help' => 'Ruta JSON a la matriz que contiene los elementos, ejemplo: <code>newsItems</code>',
+					'help' => 'Ruta JSON a la matriz que contiene los elementos, ejemplo: <code>$</code> o <code>newsItems</code>',
 				),
 				'item_author' => 'autor del item',
 				'item_categories' => 'etiquetas del item',
diff --git a/app/i18n/fa/sub.php b/app/i18n/fa/sub.php
index 9aa388e27..8ad8f3090 100644
--- a/app/i18n/fa/sub.php
+++ b/app/i18n/fa/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => ' حداقل تعداد مقالات برای نگهداری',
 		'kind' => array(
 			'_' => ' نوع منبع خوراک',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => ' HTML + XPath (خراش دادن وب)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',	// TODO
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// TODO
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// TODO
 				),
 				'item_author' => 'item author',	// TODO
 				'item_categories' => 'item tags',	// TODO
diff --git a/app/i18n/fr/sub.php b/app/i18n/fr/sub.php
index 6dd205356..2c6ec36cb 100644
--- a/app/i18n/fr/sub.php
+++ b/app/i18n/fr/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Nombre minimum d’articles à conserver',
 		'kind' => array(
 			'_' => 'Type de source de flux',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON notation point (JSON dans HTML)',
+				'xpath' => array(
+					'_' => 'XPath pour JSON dans HTML',
+					'help' => 'Exemple : <code>//script[@type="application/json"]</code>',
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Moissonnage du Web)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'La notation point pour JSON utilise le point comme séparateur objet, et des crochets pour un tableau : (ex : <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'trouver les <strong>articles</strong><br /><small>(c’est le plus important)</small>',
-					'help' => 'Chemin vers le tableau contenant les articles, par exemple <code>newsItems</code>',
+					'help' => 'Chemin vers le tableau contenant les articles, par exemple <code>$</code> ou <code>newsItems</code>',
 				),
 				'item_author' => 'auteur de l’article',
 				'item_categories' => 'catégories (tags) de l’article',
diff --git a/app/i18n/he/sub.php b/app/i18n/he/sub.php
index bd5f2446d..4accafe33 100644
--- a/app/i18n/he/sub.php
+++ b/app/i18n/he/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'מסםר מינימלי של מאמרים לשמור',
 		'kind' => array(
 			'_' => 'Type of feed source',	// TODO
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// TODO
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',	// TODO
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// TODO
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// TODO
 				),
 				'item_author' => 'item author',	// TODO
 				'item_categories' => 'item tags',	// TODO
diff --git a/app/i18n/hu/sub.php b/app/i18n/hu/sub.php
index 7c45b2951..7b9a33d98 100644
--- a/app/i18n/hu/sub.php
+++ b/app/i18n/hu/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Megtartandó cikkek minimális száma',
 		'kind' => array(
 			'_' => 'Hírforrás típusa',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON pontjelölés pontokat használ az objektumok között és zárójeleket a tömbökhöz (pl. <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'hírek keresése <strong>elemek</strong><br /><small>(legfontosabb)</small>',
-					'help' => 'JSON útvonal az elemeket tartalmazó tömbhöz, pl. <code>newsItems</code>',
+					'help' => 'JSON útvonal az elemeket tartalmazó tömbhöz, pl. <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => 'elem szerző',
 				'item_categories' => 'elem címkék',
diff --git a/app/i18n/id/sub.php b/app/i18n/id/sub.php
index 6f637c316..d8fde0251 100644
--- a/app/i18n/id/sub.php
+++ b/app/i18n/id/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimum number of articles to keep',	// TODO
 		'kind' => array(
 			'_' => 'Type of feed source',	// TODO
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// TODO
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',	// TODO
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// TODO
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// TODO
 				),
 				'item_author' => 'item author',	// TODO
 				'item_categories' => 'item tags',	// TODO
diff --git a/app/i18n/it/sub.php b/app/i18n/it/sub.php
index ff1c6f36b..e36a144ec 100644
--- a/app/i18n/it/sub.php
+++ b/app/i18n/it/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Numero minimo di articoli da mantenere',
 		'kind' => array(
 			'_' => 'Tipo di sorgente del feed',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => 'ricerca nuovi <strong>elementi</strong><br /><small>(più importante)</small>',
-					'help' => 'percorso JSON per l’array contenente gli elementi, es. <code>newsItems</code>',
+					'help' => 'percorso JSON per l’array contenente gli elementi, es. <code>$</code> o <code>newsItems</code>',
 				),
 				'item_author' => 'autore elemento',
 				'item_categories' => 'tag elemento',
diff --git a/app/i18n/ja/sub.php b/app/i18n/ja/sub.php
index 465637307..00234c0af 100644
--- a/app/i18n/ja/sub.php
+++ b/app/i18n/ja/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => '最小数の記事は保持されます',
 		'kind' => array(
 			'_' => 'フィードソースの種類',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (ウェブスクレイピング)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'JSONのドット記法は、オブジェクトの間にドットを使用し、配列には括弧を使用します。例: <code>data.items[0].title</code>',
 				'item' => array(
 					'_' => 'ニュース<strong>項目</strong>を探す<br /><small>(最重要)</small>',
-					'help' => '項目を含む配列へのJSONパス。 例: <code>newsItems</code>',
+					'help' => '項目を含む配列へのJSONパス。 例: <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => '項目の著者',
 				'item_categories' => '項目のタグ',
diff --git a/app/i18n/ko/sub.php b/app/i18n/ko/sub.php
index 470d61478..e28f22f74 100644
--- a/app/i18n/ko/sub.php
+++ b/app/i18n/ko/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => '최소 유지 글 개수',
 		'kind' => array(
 			'_' => '피드 소스 유형',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (웹 스크래핑)',
 				'feed_title' => array(
diff --git a/app/i18n/lv/sub.php b/app/i18n/lv/sub.php
index c5e5b388f..d81da3718 100644
--- a/app/i18n/lv/sub.php
+++ b/app/i18n/lv/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimālais saglabājamo izstrādājumu skaits',
 		'kind' => array(
 			'_' => 'Barotnes avota veids',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Tīmekļa nolasīšana)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',	// TODO
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// TODO
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// TODO
 				),
 				'item_author' => 'item author',	// TODO
 				'item_categories' => 'item tags',	// TODO
diff --git a/app/i18n/nl/sub.php b/app/i18n/nl/sub.php
index 38cd24d10..817fa8b10 100644
--- a/app/i18n/nl/sub.php
+++ b/app/i18n/nl/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimum aantal artikelen om te houden',
 		'kind' => array(
 			'_' => 'Feedbron-type',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
diff --git a/app/i18n/oc/sub.php b/app/i18n/oc/sub.php
index 4fcc50781..6b8ea93bb 100644
--- a/app/i18n/oc/sub.php
+++ b/app/i18n/oc/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Nombre minimum d’articles de servar',
 		'kind' => array(
 			'_' => 'Tipe de font de flux',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => 'finding news <strong>items</strong><br /><small>(most important)</small>',	// TODO
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// TODO
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// TODO
 				),
 				'item_author' => 'item author',	// TODO
 				'item_categories' => 'item tags',	// TODO
diff --git a/app/i18n/pl/sub.php b/app/i18n/pl/sub.php
index 13ad11bc3..4f99c2866 100644
--- a/app/i18n/pl/sub.php
+++ b/app/i18n/pl/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimalna liczba wiadomości do do przechowywania',
 		'kind' => array(
 			'_' => 'Rodzaj źródła kanału',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'JSON oddzielający obiekty kropkami i używający nawiasów kwadratowych dla tablic (na przykład <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'odnajdywanie <strong>wiadomości</strong><br /><small>(najważniejsze)</small>',
-					'help' => 'Ścieżka w JSON-ie do tablicy zawierającej wiadomości, na przykład <code>newsItems</code>',
+					'help' => 'Ścieżka w JSON-ie do tablicy zawierającej wiadomości, na przykład <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => 'autor wiadomości',
 				'item_categories' => 'tagi wiadomości',
diff --git a/app/i18n/pt-br/sub.php b/app/i18n/pt-br/sub.php
index 2593b3648..d1c2f08e5 100644
--- a/app/i18n/pt-br/sub.php
+++ b/app/i18n/pt-br/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Número mínimo de artigos para manter',
 		'kind' => array(
 			'_' => 'Tipo de fonte de alimentação do Feed',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'Um JSON na notação de ponto usa pontos entre os objetos e colchetes para arrays (e.g. <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'encontrando novidades <strong>itens</strong><br /><small>(mais importante)</small>',
-					'help' => 'Caminho do JSON para o array contendo os itens, e.g. <code>newsItems</code>',
+					'help' => 'Caminho do JSON para o array contendo os itens, e.g. <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => 'autor do item',
 				'item_categories' => 'tags dos itens',
diff --git a/app/i18n/ru/sub.php b/app/i18n/ru/sub.php
index a9f802738..946f53177 100644
--- a/app/i18n/ru/sub.php
+++ b/app/i18n/ru/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Оставлять статей не менее',
 		'kind' => array(
 			'_' => 'Тип источника ленты',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (парсинг веб-страниц)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'JSON с точечной нотацией использует точки между объектами и квадратные скобки для массивов (например: <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'Найти новые <strong>элементы</strong><br /><small>(самое важное)</small>',
-					'help' => 'JSON-путь к массиву, содержащему элементы, например: <code>newsItems</code>',
+					'help' => 'JSON-путь к массиву, содержащему элементы, например: <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => 'автор элемента',
 				'item_categories' => 'теги элемента',
diff --git a/app/i18n/sk/sub.php b/app/i18n/sk/sub.php
index 766d75e8f..a019db2a9 100644
--- a/app/i18n/sk/sub.php
+++ b/app/i18n/sk/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'Minimálny počet článkov na uchovanie',
 		'kind' => array(
 			'_' => 'Typ zdroja kanála',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'JSON so zápisom s bodkou používa bodky na oddelenie objekov a zložené zátvorky pre polia (príklad: <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => 'hľadajú sa <strong>položky</strong> noviniek<br /><small>(najdôležitejšie)</small>',
-					'help' => 'JSON cesta k polu obsahujúce položky, príklad: <code>newsItems</code>',
+					'help' => 'JSON cesta k polu obsahujúce položky, príklad: <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => 'autor položky',
 				'item_categories' => 'značky položky',
diff --git a/app/i18n/tr/sub.php b/app/i18n/tr/sub.php
index ad68d0611..2bdc551a8 100644
--- a/app/i18n/tr/sub.php
+++ b/app/i18n/tr/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => 'En az tutulacak makale sayısı',
 		'kind' => array(
 			'_' => 'Akış kaynağının tipi',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web scraping)',	// IGNORE
 				'feed_title' => array(
diff --git a/app/i18n/zh-cn/sub.php b/app/i18n/zh-cn/sub.php
index 2ccd4bcf6..274ef677b 100644
--- a/app/i18n/zh-cn/sub.php
+++ b/app/i18n/zh-cn/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => '至少保存的文章数',
 		'kind' => array(
 			'_' => '订阅源类型',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web 抓取)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'JSON 点表达式（JSON 路径）在对象之间使用点，在数组中使用中括号 (例如 <code>data.items[0].title</code>)',
 				'item' => array(
 					'_' => '寻找新的 <strong>文章</strong><br /><small>(最重要的参数)</small>',
-					'help' => '包含文章数组的 JSON 路径， 例如 <code>newsItems</code>',
+					'help' => '包含文章数组的 JSON 路径， 例如 <code>$</code> or <code>newsItems</code>',	// DIRTY
 				),
 				'item_author' => '文章作者',
 				'item_categories' => '文章标签',
diff --git a/app/i18n/zh-tw/sub.php b/app/i18n/zh-tw/sub.php
index 56237d9ed..8cbc0f9ae 100644
--- a/app/i18n/zh-tw/sub.php
+++ b/app/i18n/zh-tw/sub.php
@@ -83,6 +83,13 @@ return array(
 		'keep_min' => '至少保存的文章數',
 		'kind' => array(
 			'_' => '訂閱源類型',
+			'html_json' => array(
+				'_' => 'HTML + XPath + JSON dot notation (JSON in HTML)',	// TODO
+				'xpath' => array(
+					'_' => 'XPath for JSON in HTML',	// TODO
+					'help' => 'Example: <code>//script[@type="application/json"]</code>',	// TODO
+				),
+			),
 			'html_xpath' => array(
 				'_' => 'HTML + XPath (Web 抓取)',
 				'feed_title' => array(
@@ -139,7 +146,7 @@ return array(
 				'help' => 'A JSON dot notated uses dots between objects and brackets for arrays (e.g. <code>data.items[0].title</code>)',	// TODO
 				'item' => array(
 					'_' => '找尋新聞 <strong>項目</strong><br /><small>(最重要的)</small>',
-					'help' => 'JSON path to the array containing the items, e.g. <code>newsItems</code>',	// TODO
+					'help' => 'JSON path to the array containing the items, e.g. <code>$</code> or <code>newsItems</code>',	// TODO
 				),
 				'item_author' => '項目作者',
 				'item_categories' => '項目標籤',