update dependencies

Author: nRo

README.md

@@ -25,42 +25,6 @@ Logical operators:
 AND, OR, XOR, NOR
 ```
 
-Install
--------
-Add this to you pom.xml
-
-```xml
-<repositories>
-    <repository>
-        <id>alexgruen-snapshot</id>
-        <name>alexgruen-snapshot</name>
-        <url>http://maven.alexgruen.de/artifactory/public-snapshot</url>
-        <snapshots>
-            <enabled>true</enabled>
-        </snapshots>
-    </repository>
-    <repository>
-        <id>alexgruen-release</id>
-        <name>alexgruen-release</name>
-        <url>http://maven.alexgruen.de/artifactory/public-release</url>
-        <snapshots>
-            <enabled>false</enabled>
-        </snapshots>
-    </repository>
-    ...
-</repositories>
-...
-<dependencies>
-...
-    <dependency>
-        <groupId>de.alexgruen</groupId>
-        <artifactId>querycompiler</artifactId>
-        <version>0.3-SNAPSHOT</version>
-    </dependency>
-...
-</dependencies>
-```
-
 Build
 -----
 To build the library from sources:

pom.xml

@@ -40,12 +40,12 @@
         <dependency>
             <groupId>org.antlr</groupId>
             <artifactId>antlr4-runtime</artifactId>
-            <version>4.7.1</version>
+            <version>4.9.2</version>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>RELEASE</version>
+            <version>5.7.2</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -54,7 +54,7 @@
             <plugin>
                 <groupId>org.antlr</groupId>
                 <artifactId>antlr4-maven-plugin</artifactId>
-                <version>4.7.1</version>
+                <version>4.9.2</version>
                 <configuration>
                     <visitor>true</visitor>
                 </configuration>

src/main/java/de/alexgruen/query/compiler/parser/ParserUtil.java

@@ -97,9 +97,6 @@ public Boolean parse(String s) throws ParseException {
                 )) {
                     throw new ParseException(String.format("illegal boolean value: %s", s), 0);
                 }
-                if(s.equals("f")){
-                    return false;
-                }
                 switch (s){
                     case "f":return false;
                     case "t":return true;