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15 files changed

Lines changed: 1268 additions & 0 deletions

‎input1.php‎

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$a=3;
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$a=$a+3;
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$a=$a-3;
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$a=$a*3;
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$a=$a/3;
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$a=$a%3;
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$b=$a;
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$c=$a+$b;
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echo $a;
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print $a;
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echo "Text1";
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for($a = 0; $a < 5; $a++) {
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echo $a;
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}
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while($a < 5) {
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echo $a;
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$a++;
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}
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if ($a == 0) {
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echo "Text1";
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}
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else if ($a == 1) {
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echo "Text2";
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}
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else {
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echo "Text3";
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}
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echo "String 1\n";
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$string_var = "String 2";
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echo $string_var."\n";
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echo "String 1"." ".$string_var;
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f(2);
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function f($a) {
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echo $a;
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}

‎input2.php‎

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$a=3;
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$b=$a;
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$c=$a+$b;
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echo $a;
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print $a;
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echo "Text1";
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for($t = 0; $t < 5; $t++) {
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echo $t;
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}
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while($a < 5) {
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echo $a;
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$a++;
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}
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if ($a == 0) {
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echo "Text1";
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}
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else if ($a == 1) {
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echo "Text2";
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}
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else {
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echo "Text3";
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}
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echo "String 1\n";
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$string_var = "String 2";
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echo $string_var."\n";
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echo "String 1"." ".$string_var;
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f(2);
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function f($a) {
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echo $a;
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}

‎src/generator/CodeGenerator.java‎

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package generator;
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public class CodeGenerator {
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public String print(String value){
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System.out.println();
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return "";
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}
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}

‎src/generator/JavaClassGenerator.java‎

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package generator;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.List;
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public class JavaClassGenerator {
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public static final String path = "src\\generated\\";
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private final String className;
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private BufferedWriter bw;
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public JavaClassGenerator(String name) {
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className = name;
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File f = new File(path + className +".java");
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try {
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if (!f.exists())
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f.createNewFile();
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bw= new BufferedWriter(new FileWriter(f));
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} catch (IOException e) {
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System.err.println("Can't create file " + f.getName() + ":\n" + f.getAbsolutePath());
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}
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}
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public void generateStart() throws IOException{
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if (bw == null) return;
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bw.append("package generated;\n\n");
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bw.append("public class "+ className +" {\n\n");
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}
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public void openMainMethod() throws IOException{
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if (bw == null) return;
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bw.append("\n\tpublic static void main(String[] args) {\n");
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}
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public void openMethod(String name, String... args) throws IOException{
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if (bw == null) return;
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bw.append("\n\tprivate static void "+name+"(");
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for (int i = 0; i < args.length-2; i=i+2) {
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bw.append(args[i]+" "+ args[i+1] + ", ");
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}
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if (args.length > 0){
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bw.append(args[args.length-2]+" "+ args[args.length-1]);
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}
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bw.append("){\n");
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}
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public void closeMethod() throws IOException{
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bw.append("\t}\n");
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}
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public void generateEnd() throws IOException {
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if (bw == null) return;
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bw.append("}");
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bw.flush();
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bw.close();
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}
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public void generateDefault(){
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try {
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generateStart();
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bw.append(defaultBody());
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generateEnd();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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public void generateMainBody(List<String> list) throws IOException {
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openMainMethod();
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if (bw == null) return;
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for (int i = 0; i < list.size(); i++) {
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bw.append("\t\t"+list.get(i)+"\n");
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}
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closeMethod();
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}
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private static String defaultBody() {
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StringBuffer sb = new StringBuffer();
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sb.append("\tpublic static void main(String[] args) {\n");
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sb.append("\t\tSystem.out.println(\"Hello WORLD!!!\");\n");
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sb.append("\t}\n");
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return sb.toString();
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}
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public static void main(String[] args) {
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JavaClassGenerator jcg = new JavaClassGenerator("HelloWorld");
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jcg.generateDefault();
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}
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public void generateMethods(List<String> list) throws IOException {
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if (bw == null) return;
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for (int i = 0; i < list.size(); i++) {
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bw.append("\t"+list.get(i)+"\n");
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}
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}
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}

‎src/generator/Main.java‎

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package generator;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import translator.Executer;
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public class Main {
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public static void main(String[] args) {
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//String inputname = "input2.php";
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//File input = new File(inputname);
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//çàïóñê ñ ïàðàìåòðîì - èìÿ âõîäíîãî ôàéëà
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if (args.length < 1)
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throw new IllegalArgumentException("No arguments error: need a filename");
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File input = new File(args[0]);
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if (!input.exists())
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throw new IllegalArgumentException("File '" + args[0] + "' doesn't exist");
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//îòðåçàåì .php â èìåíè
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int lastIndex = input.getName().lastIndexOf(".");
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String outputname = (lastIndex == -1)? input.getName(): input.getName().substring(0, lastIndex);
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System.out.println("Generating " + outputname + ".java");
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// ãåíåðàòîð java-êëàññà
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JavaClassGenerator jdc = new JavaClassGenerator(outputname);
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try {
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// çàïîëíÿåò âåðõíþþ ÷àñòü êëàññà (package, public class Name)
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jdc.generateStart();
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Executer e = new Executer();
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e.setFile(input);
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e.execute(); // âûçîâ àíàëèçàòîðà, â ðåçóëüòàòå â íåì áóäóò 2 ñïèñêà:
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//1é - êîä â main , 2é - ñïèñîê ìåòîäîâ êëàññà
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jdc.generateMainBody(e.getCodelist()); //çàïîëíÿåì ìýéí
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jdc.generateMethods(e.getFunctionList()); //çàïîëíÿåò ìåòîäû
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jdc.generateEnd(); //çàêðûâàþùàÿ ñêîáî÷êà êëàññà
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} catch (FileNotFoundException e) {
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System.err.println("File "+input.getName()+" not found: \n" + input.getAbsolutePath());
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} catch (IOException e) {
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System.err.println("IO error while writing "+input.getName());
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}
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}
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}

‎src/translator/Executer.java‎

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package translator;
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import java.io.BufferedReader;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import translator.Parser.Type;
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public class Executer {
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private BufferedReader br;
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private List<List<Token>> listOfLexems = new ArrayList<>();
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private List<String> strings = new ArrayList<>();
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private Map<String, Type> varMap;
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private List<String> codelist;
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private List<String> functionlist;
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public static void main(String[] args) {
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if (args.length < 1)
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throw new IllegalArgumentException("No arguments error: need a filename");
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File f = new File(args[0]);
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if (!f.exists())
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throw new IllegalArgumentException("File '" + args[0] + "' doesn't exist");
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try {
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Executer e = new Executer();
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e.br = new BufferedReader(new FileReader(f));
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e.execute();
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} catch (FileNotFoundException e1) {
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System.err.println("File not found");
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}
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}
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public void execute() {
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try {
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lex(); // çàïóñê ëåêñè÷åñêîãî àíàëèçà
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parse(); // çàïóñê ñèíòàêñè÷åñêîãî àíàëèçà
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} catch (ParseException e) {
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System.err.println(e.getMessage());
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} catch (LexException e) {
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System.err.println(e.getMessage());
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}
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}
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/**
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* Äëÿ êàæäîãî ñïèñêà òîêåíîâ (ïî ñòðî÷êàì) çàïóñêàåò ñèíòàêñ. àíàëèçàòîð
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*
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* Ïîñëå áåðåò èç àíàëèçàòîðà:
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* - êàðòó âñåõ ïåðåìåííûõ
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* - êîä ìåòîäà ìýéí
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* - ñïèñîê ìåòîäîâ ãåíåðèðóåìîãî êëàññà
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* @throws ParseException
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*/
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public void parse() throws ParseException {
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Parser p = new Parser();
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for (List<Token> li : listOfLexems) {
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if (!li.isEmpty()){
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p.expr(li);
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}
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}
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varMap = p.getVarMap();
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codelist = p.getCodelist();
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functionlist = p.getFunctionlist();
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}
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/**
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* Ëåêñ. àíàëèç ïî ñòðîêàì, äëÿ êàæäîé ñòðîêè âîçâð. ñïèñîê òîêåíîâ è
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* äîáàâëÿåò åãî â îáùèé ñïèñîê
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* @throws LexException
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*/
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public void lex() throws LexException {
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Lexer l = new Lexer();
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try {
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String str;
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while ((str = br.readLine()) != null) {
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try {
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List<Token> tokens = l.read(str);
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strings.add(str);
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listOfLexems.add(tokens);
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} catch (LexException e) {
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throw new LexException(e.getMessage() + "\nin " + str);
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}
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}
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br.close();
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} catch (IOException e) {
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System.err.println("Can't read input stream");
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}
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}
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public void setText(String str) {
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clearAll();
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InputStream is = new ByteArrayInputStream(str.getBytes());
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br = new BufferedReader(new InputStreamReader(is));
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}
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public void clearAll() {
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listOfLexems.clear();
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// functionlist.clear();
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// codelist.clear();
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strings.clear();
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}
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public List<List<Token>> getLexems() {
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return listOfLexems;
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}
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public String getString(int i) {
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return strings.get(i);
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}
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public void setFile(File input) throws FileNotFoundException {
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clearAll();
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br = new BufferedReader(new FileReader(input));
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}
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public Map<String, Type> getVarMap(){
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return varMap;
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}
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public List<String> getCodelist() {
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return codelist;
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}
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public List<String> getFunctionList() {
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return functionlist;
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}
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}

‎src/translator/LexException.java‎

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package translator;
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public class LexException extends Exception {
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/**
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*
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*/
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private static final long serialVersionUID = 7238374723833613987L;
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public LexException(String s) {
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super("Lexer error: " + s);
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}
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}

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