Fixes running researches that require a tree in the experimental content analysis API

apps/content-analysis-api/routes/research.js

@@ -1,4 +1,6 @@
 const { Paper } = require( "yoastseo" );
+const { build } = require( "yoastseo/build/parse/build" );
+const { LanguageProcessor } = require( "yoastseo/build/parse/language" );
 const { getResearcher } = require( "../helpers/get-researcher" );
 
 module.exports = function( app ) {
@@ -45,10 +47,11 @@ module.exports = function( app ) {
 			request.body.text || "",
 			request.body || {}
 		);
+		paper.setTree( build( paper, new LanguageProcessor( researcher ), paper._attributes && paper._attributes.shortcodes ) );
 		researcher.setPaper( paper );
 		const sentenceLengths = researcher.getResearch( "countSentencesFromText" );
 
-		const responseBody = sentenceLengths.map( sentence => ( { sentence: sentence.sentence, length: sentence.sentenceLength } ) );
+		const responseBody = sentenceLengths.map( sentence => ( { sentence: sentence.sentence.text, length: sentence.sentenceLength } ) );
 		response.json( responseBody );
 	} );
 
@@ -59,10 +62,11 @@ module.exports = function( app ) {
 			request.body.text || "",
 			request.body || {}
 		);
+		paper.setTree( build( paper, new LanguageProcessor( researcher ), paper._attributes && paper._attributes.shortcodes ) );
 		researcher.setPaper( paper );
 		const paragraphLengths = researcher.getResearch( "getParagraphLength" );
 
-		const responseBody = paragraphLengths.map( paragraph => ( { paragraph: paragraph.text, length: paragraph.countLength } ) );
+		const responseBody = paragraphLengths.map( paragraph => ( { length: paragraph.paragraphLength } ) );
 		response.json( responseBody );
 	} );
 }

packages/yoastseo/src/parse/language/LanguageProcessor.js

@@ -8,7 +8,7 @@ const whitespaceRegex = /^\s+$/;
 /**
  * Contains language-specific logic for splitting a text into sentences and tokens.
  */
-class LanguageProcessor {
+export default class LanguageProcessor {
 	/**
 	 * Creates a new language processor.
 	 *
@@ -71,4 +71,3 @@ class LanguageProcessor {
 		return tokenTexts.map( tokenText => new Token( tokenText ) );
 	}
 }
-export default LanguageProcessor;

packages/yoastseo/src/parse/language/index.js

@@ -0,0 +1,5 @@
+import LanguageProcessor from "./LanguageProcessor";
+
+export {
+	LanguageProcessor,
+};