build.gradle

plugins {
    id 'java'
    id 'antlr'
    id 'idea'
}

group 'prj.clark.pl.a3'
version '1.0-SNAPSHOT'

sourceCompatibility = 1.8

task part1(type: JavaExec) {
    classpath sourceSets.main.runtimeClasspath
    main = 'prj.clark.pl.a3.Part1'
    standardInput = System.in
}

task part2(type: JavaExec) {
    classpath sourceSets.main.runtimeClasspath
    main = 'prj.clark.pl.a3.Part2'
    standardInput = System.in
}

repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.12'
    antlr group: 'org.antlr', name: 'antlr4', version: '4.7.2'
    compile group: 'org.antlr', name: 'antlr4-runtime', version: '4.7.2'
}

generateGrammarSource {
    outputDirectory = new File('generated-src/main/antlr/java/prj/clark/pl/a3/')
    arguments += ["-visitor", "-long-messages"]
}

sourceSets.main.java.srcDir new File('generated-src/main/antlr/java/')

clean {
    delete 'generated-src'
}

idea {
    module {
        sourceDirs += file('generated-src/antlr/java')
    }
}