From ead2f1961fc653861a151a033c3cd0657c50af16 Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Sun, 3 Jul 2016 11:22:26 +0200
Subject: LD file Antlr4 grammar. Generates a lexer and parser for Java.

---
 cmake/elfinfo/Makefile.grammar | 53 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 cmake/elfinfo/Makefile.grammar

(limited to 'cmake/elfinfo/Makefile.grammar')

diff --git a/cmake/elfinfo/Makefile.grammar b/cmake/elfinfo/Makefile.grammar
new file mode 100644
index 0000000..13eb13d
--- /dev/null
+++ b/cmake/elfinfo/Makefile.grammar
@@ -0,0 +1,53 @@
+GRAMMAR=GnuLd.g4
+G4_PACKAGE ?= io.trygvis.ld.antlr
+PACKAGE_PATH = $(subst .,/,$(G4_PACKAGE))
+
+G4_JAVA=\
+    $(patsubst %.g4,antlr/$(PACKAGE_PATH)/%Lexer.java,$(GRAMMAR))
+
+#    $(patsubst %.g4,antlr/$(PACKAGE_PATH)/%Parser.java,$(GRAMMAR)) \
+#    $(patsubst %.g4,antlr/$(PACKAGE_PATH)/%Listener.java,$(GRAMMAR)) \
+#    $(patsubst %.g4,antlr/$(PACKAGE_PATH)/%BaseListener.java,$(GRAMMAR))
+
+G4_CLASSES=$(patsubst antlr/%.java,target/classes/%.class,$(G4_JAVA))
+
+ANTLR_URL=http://repo1.maven.org/maven2/org/antlr/antlr4/4.5.3/antlr4-4.5.3.jar
+ANTLR_RUNTIME_URL=http://repo1.maven.org/maven2/org/antlr/antlr4-runtime/4.5.3/antlr4-runtime-4.5.3.jar
+ANTLR_JAR=$(notdir $(ANTLR_URL))
+ANTLR_RUNTIME_JAR=$(notdir $(ANTLR_RUNTIME_URL))
+
+all: meta-java
+
+meta-java: $(G4_JAVA)
+
+meta-classes: $(G4_CLASSES)
+
+info:
+	@echo "ANTLR_JAR  $(ANTLR_JAR)"
+	@echo "GRAMMAR    $(GRAMMAR)"
+	@echo "G4_JAVA    $(G4_JAVA)"
+	@echo "G4_CLASSES $(G4_CLASSES)"
+
+target/classes antlr:
+	mkdir -p $@
+
+download: $(ANTLR_JAR) $(ANTLR_RUNTIME_JAR)
+
+$(ANTLR_JAR):
+	wget $(ANTLR_URL)
+
+$(ANTLR_RUNTIME_JAR):
+	wget $(ANTLR_RUNTIME_URL)
+
+$(G4_JAVA): $(GRAMMAR) | antlr $(ANTLR_JAR)
+	java -cp $(ANTLR_JAR) org.antlr.v4.Tool \
+	  -visitor \
+	  -o antlr/$(PACKAGE_PATH) \
+	  $(patsubst %,-package %,$(G4_PACKAGE)) \
+	  $<
+
+$(G4_CLASSES): $(G4_JAVA) | target/classes
+	javac -d target/classes -cp $(ANTLR_JAR) $(wildcard antlr/$(PACKAGE_PATH)/*.java)
+
+clean:
+	rm -rf target/classes antlr
-- 
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