use cup.bzl from bazeel rules

WORKSPACE

@@ -6,7 +6,7 @@ load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
 
 git_repository(
     name = "jflex_rules",
-    tag = "stable",
+    tag = "v3",
     remote = "https://github.com/jflex-de/bazel_rules.git",
 )
 

cup/BUILD

@@ -2,20 +2,6 @@ package(default_visibility = ["//visibility:public"])
 
 licenses(["notice"])  # GPL-compatible
 
-java_binary(
-    name = "cup_bin",
-    main_class = "java_cup.Main",
-    runtime_deps = [
-        ":cup",
-    ],
-)
-
-# This is the full Java CUP (with runtime)
-java_import(
-    name = "cup",
-    jars = ["cup/java-cup-11b.jar"],
-)
-
 alias(
     name = "cup_runtime",
     actual = "//cup/cup_runtime",

cup/sample-project/BUILD

@@ -3,4 +3,5 @@ load("@jflex_rules//cup:cup.bzl", "cup")
 cup(
     name = "gen_parser",
     src = "src/main/cup/calculator.cup",
+    cup_bin = "@jflex_rules//cup:cup_bin",
 )

jflex/BUILD

@@ -21,14 +21,15 @@ java_library(
     resources = glob(["src/main/resources/**"]),
     visibility = ["//visibility:public"],
     deps = [
-        "//cup",
+        "//cup:cup_runtime",
         "//third_party/org/apache/ant",
     ],
 )
 
 cup(
     name = "gen_parser",
     src = "src/main/cup/LexParse.cup",
+    cup_bin = "@jflex_rules//cup:cup_bin",
     interface = True,
     parser = "LexParse",
     symbols = "sym",