[#4] Add FEEL lexer and parser for DMN 1.4

pom.xml

@@ -24,7 +24,7 @@
 
     <properties>
         <antlr.version>4.10.1</antlr.version>
-        <dmn.version>1.3</dmn.version>
+        <dmn.version>1.4</dmn.version>
         <package.name>jdmn-js-runtime</package.name>
 
         <antlr.source.directory>${project.basedir}/src/${package.name}/resources/dmn/${dmn.version}</antlr.source.directory>

spec/parser/Lexer.spec.js

@@ -48,6 +48,10 @@ describe("Lexer", () => {
         token = checkToken("\"a\\U01F40Eb\"", FEELLexer.STRING, "\"a\uD83D\uDC0Eb\"");
         checkPosition(token, 1, 1, 1, 6, 0, 12);
 
+        // multiline string
+        token = checkToken("\"l1\\\nl2\"", FEELLexer.STRING, "\"l1\\\nl2\"");
+        checkPosition(token, 1, 1, 2, 4, 0, 8);
+
         token = checkToken("\".\"", FEELLexer.STRING, "\".\"");
         checkPosition(token, 1, 1, 1, 3, 0, 3);
     });
@@ -216,6 +220,7 @@ describe("Lexer", () => {
         checkToken("substring after", FEELLexer.NAME, "substring after");
         checkToken("starts with", FEELLexer.NAME, "starts with");
         checkToken("ends with", FEELLexer.NAME, "ends with");
+        checkToken("string join", FEELLexer.NAME, "string join");
         checkToken("list contains", FEELLexer.NAME, "list contains");
         checkToken("insert before", FEELLexer.NAME, "insert before");
         checkToken("index of", FEELLexer.NAME, "index of");
@@ -249,6 +254,7 @@ const SPECIAL_NAMES = [
     "substring after",
     "starts with",
     "ends with",
+    "string join",
     // list functions
     "start position",
     "list contains",
@@ -258,6 +264,8 @@ const SPECIAL_NAMES = [
     // context functions
     "get entries",
     "get value",
+    "context put",
+    "context merge",
     // range functions
     "met by",
     "overlaps before",

spec/parser/Parser.spec.js

@@ -116,4 +116,23 @@ describe("Parser", () => {
         // Temporal literals
         validateOutputEntry("@\"2019-03-31\" instance of date");
     });
+
+    it("Expressions - Instance Of", () => {
+        validateOutputEntry("3 instance of number");
+        validateOutputEntry("123 instance of function <number, number> -> number");
+        validateOutputEntry("\"abc\" instance of string");
+        validateOutputEntry("true instance of boolean");
+        validateOutputEntry("date(\"2011-01-03\") instance of date");
+        validateOutputEntry("time(\"12:00:00Z\") instance of time");
+        validateOutputEntry("date and time(\"2016-03-01T12:00:00Z\") instance of date and time");
+        validateOutputEntry("duration(\"P1Y1M\") instance of years and months duration");
+        validateOutputEntry("duration(\"P1DT1H\") instance of days and time duration");
+        validateOutputEntry("x instance of number");
+        validateOutputEntry("x instance of context<x: number, y:string>");
+        validateOutputEntry("x instance of range<number>");
+        validateOutputEntry("x instance of function<number, string> -> number");
+        validateOutputEntry("x instance of list<number>");
+        // Temporal literals
+        validateOutputEntry("@\"2019-03-31\" instance of date");
+    });
 });