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# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
JAVA_PKG_IUSE="doc source test"
JAVA_TESTING_FRAMEWORKS="junit-4"
inherit java-pkg-2 java-pkg-simple
DESCRIPTION="JFlex is a lexical analyzer generator for Java"
HOMEPAGE="https://www.jflex.de/"
SRC_URI="https://github.com/jflex-de/jflex/releases/download/v${PV}/${P}.tar.gz"
S="${WORKDIR}/${P}"
LICENSE="BSD"
SLOT="0"
KEYWORDS="amd64 arm64 ppc64 ~x64-macos"
IUSE="ant-task examples test vim-syntax"
REQUIRED_USE="test? ( ant-task )"
# jdk-11:* for bug #963787
# <dev-java/ognl-3.1.25:0 because of test failures with 3.1.25 or higher
DEPEND="
>=virtual/jdk-11:*
dev-java/auto-value:0
dev-java/escapevelocity:0
dev-java/incap:0
>=dev-java/javacup-11b_p20160615-r2:0
dev-java/javapoet:0
dev-java/jsr305:0
ant-task? ( >=dev-java/ant-1.10.15:0 )
test? (
dev-java/antlr-runtime:3.5
dev-java/generics-resolver:0
>=dev-java/guava-33.4.8:0
dev-java/javaruntype:0
dev-java/junit-quickcheck:0
<dev-java/ognl-3.1.25:0
dev-java/slf4j-simple:0
dev-java/truth:0
)
"
RDEPEND="
>=virtual/jre-1.8:*
ant-task? ( >=dev-java/ant-1.10.15:0 )
vim-syntax? ( || ( app-editors/vim app-editors/gvim ) )
"
DOCS=( {changelog,README}.md )
JAVA_CLASSPATH_EXTRA="auto-value,javacup,jsr305"
JAVA_MAIN_CLASS="jflex.Main"
JAVA_RESOURCE_DIRS="src/main/resources"
JAVA_SRC_DIR="src/main/java"
JAVA_TEST_GENTOO_CLASSPATH="
ant
antlr-runtime-3.5
generics-resolver
guava
javaruntype
junit-4
junit-quickcheck
ognl
slf4j-simple
truth
"
JAVA_TEST_RESOURCE_DIRS="src/test/resources"
JAVA_TEST_SRC_DIR="src/test/java"
src_prepare() {
java-pkg-2_src_prepare
# Keep pre-compiled jar for generating LexScan.java
# It includes java_cup/runtime
java-pkg_clean ! -path "./lib/jflex-full-${PV}.jar"
# No need for that stuff
rm -r src/generated || die "rm generated"
# Providing ant-task would require dev-java/ant in dependencies.
if use ant-task; then
JAVA_GENTOO_CLASSPATH_EXTRA+=":$(java-pkg_getjar --build-only ant ant.jar)"
else
rm src/main/java/jflex/anttask/JFlexTask.java || die
fi
}
jflex_compile() {
$(java-config -J) "${@}" jflex.Main \
-d src/main/java \
--skel src/main/jflex/skeleton.nested \
src/main/jflex/LexScan.flex || die
java-pkg-simple_src_compile
}
src_compile() {
# get processorpath
local pp="$(java-pkg_getjar --build-only auto-value auto-value.jar)"
pp="${pp}:$(java-pkg_getjar --build-only auto-value auto-common.jar)"
pp="${pp}:$(java-pkg_getjars --build-only escapevelocity,guava,incap,javapoet)"
JAVAC_ARGS="-processorpath ${pp} -s src/main/java"
JAVACUP=$(java-pkg_getjar --build-only javacup javacup.jar)
java -jar "${JAVACUP}" -destdir ${JAVA_SRC_DIR} -package ${PN} \
-parser LexParse -interface src/main/cup/LexParse.cup || die
einfo "Generate LexScan.java using pre-compiled jar"
jflex_compile -cp "lib/jflex-full-${PV}.jar"
einfo "Remove and re-generate LexScan.java using the freshly built jar"
rm -v src/main/java/LexScan.java || die "rm LexScan.java"
rm -r target || die
jflex_compile -cp "${JAVACUP}:jflex.jar"
}
src_test() {
local TESTS=$(find src/test/java \( -name "*Test.java" -o -name "*Quickcheck.java" \) -printf "%P\n")
TESTS="${TESTS//.java}"
JAVA_TEST_RUN_ONLY="${TESTS//\//.}"
java-pkg-simple_src_test
}
src_install() {
java-pkg-simple_src_install
use ant-task && java-pkg_register-ant-task
use examples && java-pkg_doexamples examples
if use doc; then
dodoc doc/*.pdf
docinto html
dodoc doc/*.{css,html} doc/COPYRIGHT
fi
if use vim-syntax; then
insinto /usr/share/vim/vimfiles/syntax
doins lib/${PN}.vim
fi
}
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