build and run

.gitignore

@@ -77,4 +77,5 @@ fabric.properties
 # Editor-based Rest Client
 .idea/httpRequests
 
-/res/lexer.c
+# /res/lexer.c
+!/lib/*.jar

MANIFEST.MF

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0  
+Main-Class: com.compiler.Main
+Class-Path: lib/commons-lang3-3.0.jar lib/asm-9.1.jar

README.md

@@ -0,0 +1,10 @@
+# CJCompiler
+
+把类C语法编译成Java字节码。
+
+## 构建方式
+
+1. python build.py
+2. java -jar ./CJCompiler.jar
+3. java lexer
+

build.py

@@ -0,0 +1,31 @@
+import os
+import shutil
+
+
+proj_dir = os.getcwd()
+src_dir = os.path.join(proj_dir, "src")
+lib_dir = os.path.join(proj_dir, "lib")
+out_dir = os.path.join(proj_dir, "out")
+res_dir = os.path.join(proj_dir, "res")
+jar = os.path.join(proj_dir, "CJCompiler.jar")
+MANIFEST = os.path.join(proj_dir, "MANIFEST.MF")
+
+src_files = []
+for path, dir_names, file_names in os.walk(src_dir):
+    file_paths = [os.path.join(path, x) for x in file_names]
+    src_files += file_paths
+
+lib_files = [os.path.join(lib_dir, x) for x in os.listdir(lib_dir)]
+
+shutil.rmtree(out_dir, True)
+cmd = f"javac -d {out_dir} -encoding utf-8 -cp .;{';'.join(lib_files)} -sourcepath {src_dir} {' '.join(src_files)}"
+print(cmd)
+os.system(cmd)
+
+shutil.copytree(res_dir, os.path.join(out_dir, "res"))
+shutil.copytree(lib_dir, os.path.join(out_dir, "lib"))
+
+
+cmd = f"cd {out_dir} && jar -cvfm {jar} {MANIFEST} *"
+print(cmd)
+os.system(cmd)

res/lexer.c

@@ -0,0 +1,23 @@
+int a = 1;
+int b =0;
+int c;
+char eq='=';
+char ent = '\n';
+char mul = 'x';
+char blank = '_';
+
+while(a<=9){
+    b=1;
+    while(b<a){
+        print b;
+        print mul;
+        print a;
+
+        print eq;
+        print c;
+        print blank;
+        b=b+1;
+    }
+    println ent;
+    a=a+1;
+}