# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

JAVA_PKG_IUSE="doc source"
MAVEN_ID="antlr:antlr:2.7.7"

inherit java-pkg-2 java-pkg-simple

DESCRIPTION="A parser generator for many languages"
HOMEPAGE="https://www.antlr2.org/"
SRC_URI="https://www.antlr2.org/download/${P}.tar.gz"

LICENSE="public-domain"
SLOT="0"
KEYWORDS="amd64 ~arm arm64 ppc64 x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris"
IUSE="examples"

RDEPEND=">=virtual/jre-1.8:*"
DEPEND=">=virtual/jdk-1.8:*"

S="${WORKDIR}/${P}"

JAVA_SRC_DIR="${S}/${PN}"

DOCS=( CHANGES.txt README.txt )

src_prepare() {
	default
	java-pkg_clean

	# Delete build files from examples.
	find examples \( -name Makefile.in -o -name shiplist \) -delete || die
}

# Avoid configure script.
src_configure() { :; }

src_install() {
	java-pkg-simple_src_install
	java-pkg_dolauncher antlr --main antlr.Tool

	use doc && java-pkg_dohtml -r doc/*
	use examples && java-pkg_doexamples examples/java
	use source && java-pkg_dosrc antlr

	# https://bugs.gentoo.org/789582
	einstalldocs
}