import java.math.*; import javax.imageio.*; import java.awt.image.*; import java.awt.event.*; import java.awt.*; import java.security.spec.*; import java.security.*; import java.lang.management.*; import java.lang.ref.*; import java.lang.reflect.*; import java.net.*; import java.io.*; import javax.swing.table.*; import javax.swing.text.*; import javax.swing.event.*; import javax.swing.*; import java.util.concurrent.atomic.*; import java.util.concurrent.*; import java.util.regex.*; import java.util.List; import java.util.zip.*; import java.util.*; // Syntax: thread "bla" { doSomething(); } // Also: thread var { doSomething(); } // Short for: new Thread("bla) { public void run() { doSomething(); }}.start(); public class main { public static void main(String[] args) throws Exception { List tok = javaTok(loadMainJava()); for (int i = 0; i < 100; i++) { int idx = findCodeTokens(tok, "thread", "*", "{"); if (idx < 0) break; int j = findEndOfBracketPart(tok, idx+4); String tName = tok.get(idx+2); String var = "_t_" + i; String pre = "{ Thread " + var + " = new Thread(" + tName + ") {\n" + "public void run() {\n" + "try"; String post = "} catch (Exception _e) {\n" + " throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } }\n};\n" + var + ".start(); }"; tok.set(idx, pre); tok.set(idx+2, ""); tok.set(j-1, post); } saveMainJava(join(tok)); } // i must point at the opening bracket (any of the 2 types, not type parameters) // index returned is index of closing bracket + 1 static int findEndOfBracketPart(List cnc, int i) { int j = i+2, level = 1; while (j < cnc.size()) { if (litlist("{", "(").contains(cnc.get(j))) ++level; else if (litlist("}", ")").contains(cnc.get(j))) --level; if (level == 0) return j+1; ++j; } return cnc.size(); } // replacement for class JavaTok // maybe incomplete, might want to add floating point numbers // todo also: extended multi-line strings static List javaTok(String s) { List tok = new ArrayList(); int l = s.length(); int i = 0; while (i < l) { int j = i; char c; String cc; // scan for whitespace while (j < l) { c = s.charAt(j); cc = s.substring(j, Math.min(j+2, l)); if (c == ' ' || c == '\t' || c == '\r' || c == '\n') ++j; else if (cc.equals("/*")) { do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/")); j = Math.min(j+2, l); } else if (cc.equals("//")) { do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0); } else break; } tok.add(s.substring(i, j)); i = j; if (i >= l) break; c = s.charAt(i); // cc is not needed in rest of loop body cc = s.substring(i, Math.min(i+2, l)); // scan for non-whitespace if (c == '\'' || c == '"') { char opener = c; ++j; while (j < l) { if (s.charAt(j) == opener || s.charAt(j) == '\n') { // end at \n to not propagate unclosed string literal errors ++j; break; } else if (s.charAt(j) == '\\' && j+1 < l) j += 2; else ++j; } } else if (Character.isJavaIdentifierStart(c)) do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't" else if (Character.isDigit(c)) { do ++j; while (j < l && Character.isDigit(s.charAt(j))); if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L } else if (cc.equals("[[")) { do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]")); j = Math.min(j+2, l); } else if (cc.equals("[=") && i+2 < l && s.charAt(i+2) == '[') { do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]")); j = Math.min(j+3, l); } else ++j; tok.add(s.substring(i, j)); i = j; } if ((tok.size() % 2) == 0) tok.add(""); return tok; } static List javaTok(List tok) { return javaTok(join(tok)); } static int findCodeTokens(List tok, String... tokens) { return findCodeTokens(tok, 1, false, tokens); } static int findCodeTokens(List tok, boolean ignoreCase, String... tokens) { return findCodeTokens(tok, 1, ignoreCase, tokens); } static int findCodeTokens(List tok, int startIdx, boolean ignoreCase, String... tokens) { return findCodeTokens(tok, startIdx, ignoreCase, tokens, null); } static int findCodeTokens(List tok, int startIdx, boolean ignoreCase, String[] tokens, Object condition) { outer: for (int i = startIdx | 1; i+tokens.length*2-2 < tok.size(); i += 2) { for (int j = 0; j < tokens.length; j++) { String p = tokens[j], t = tok.get(i+j*2); boolean match; if (eq(p, "*")) match = true; else if (eq(p, "")) match = isQuoted(t); else if (eq(p, "")) match = isIdentifier(t); else if (eq(p, "")) match = isInteger(t); else if (eq(p, "\\*")) match = eq("*", t); else match = ignoreCase ? eqic(p, t) : eq(p, t); if (!match) continue outer; } if (condition == null || checkCondition(condition, tok, i-1)) // pass N index return i; } return -1; } static void saveMainJava(String s) throws IOException { if (mainJava != null) mainJava = s; else saveTextFile("output/main.java", s); } static void saveMainJava(List tok) throws IOException { saveMainJava(join(tok)); } public static String join(String glue, Iterable strings) { StringBuilder buf = new StringBuilder(); Iterator i = strings.iterator(); if (i.hasNext()) { buf.append(i.next()); while (i.hasNext()) buf.append(glue).append(i.next()); } return buf.toString(); } public static String join(String glue, String[] strings) { return join(glue, Arrays.asList(strings)); } public static String join(Iterable strings) { return join("", strings); } public static String join(String[] strings) { return join("", strings); } static String mainJava; static String loadMainJava() throws IOException { if (mainJava != null) return mainJava; return loadTextFile("input/main.java", ""); } static boolean isIdentifier(String s) { return isJavaIdentifier(s); } public static String loadTextFile(String fileName) { try { return loadTextFile(fileName, null); } catch (IOException e) { throw new RuntimeException(e); } } public static String loadTextFile(String fileName, String defaultContents) throws IOException { if (!new File(fileName).exists()) return defaultContents; FileInputStream fileInputStream = new FileInputStream(fileName); InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8"); return loadTextFile(inputStreamReader); } public static String loadTextFile(File fileName) { try { return loadTextFile(fileName, null); } catch (IOException e) { throw new RuntimeException(e); } } public static String loadTextFile(File fileName, String defaultContents) throws IOException { try { return loadTextFile(fileName.getPath(), defaultContents); } catch (IOException e) { throw new RuntimeException(e); } } public static String loadTextFile(Reader reader) throws IOException { StringBuilder builder = new StringBuilder(); try { char[] buffer = new char[1024]; int n; while (-1 != (n = reader.read(buffer))) builder.append(buffer, 0, n); } finally { reader.close(); } return builder.toString(); } static boolean checkCondition(Object condition, Object... args) { return isTrue(call(condition, "check", args)); } static boolean eqic(String a, String b) { if ((a == null) != (b == null)) return false; if (a == null) return true; return a.equalsIgnoreCase(b); } static boolean eq(Object a, Object b) { if (a == null) return b == null; if (a.equals(b)) return true; if (a instanceof BigInteger) { if (b instanceof Integer) return a.equals(BigInteger.valueOf((Integer) b)); if (b instanceof Long) return a.equals(BigInteger.valueOf((Long) b)); } return false; } static boolean isInteger(String s) { return s != null && Pattern.matches("\\-?\\d+", s); } static ArrayList litlist(A... a) { return new ArrayList(Arrays.asList(a)); } /** writes safely (to temp file, then rename) */ public static void saveTextFile(String fileName, String contents) throws IOException { File file = new File(fileName); File parentFile = file.getParentFile(); if (parentFile != null) parentFile.mkdirs(); String tempFileName = fileName + "_temp"; if (contents != null) { FileOutputStream fileOutputStream = new FileOutputStream(tempFileName); OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8"); PrintWriter printWriter = new PrintWriter(outputStreamWriter); printWriter.print(contents); printWriter.close(); } if (file.exists() && !file.delete()) throw new IOException("Can't delete " + fileName); if (contents != null) if (!new File(tempFileName).renameTo(file)) throw new IOException("Can't rename " + tempFileName + " to " + fileName); } public static void saveTextFile(File fileName, String contents) { try { saveTextFile(fileName.getPath(), contents); } catch (IOException e) { throw new RuntimeException(e); } } // supports the usual quotings (', ", variable length double brackets) static boolean isQuoted(String s) { if (s.startsWith("'") || s.startsWith("\"")) return true; if (!s.startsWith("[")) return false; int i = 1; while (i < s.length() && s.charAt(i) == '=') ++i; return i < s.length() && s.charAt(i) == '['; //return Pattern.compile("^\\[=*\\[").matcher(s).find(); } static Object call(Object o) { return callFunction(o); } // varargs assignment fixer for a single string array argument static Object call(Object o, String method, String[] arg) { return call(o, method, new Object[] {arg}); } static Object call(Object o, String method, Object... args) { try { if (o instanceof Class) { Method m = call_findStaticMethod((Class) o, method, args, false); m.setAccessible(true); return m.invoke(null, args); } else { Method m = call_findMethod(o, method, args, false); m.setAccessible(true); return m.invoke(o, args); } } catch (Exception e) { throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e); } } static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) { Class _c = c; while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (!m.getName().equals(method)) { if (debug) System.out.println("Method name mismatch: " + method); continue; } if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug)) continue; return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + _c.getName()); } static Method call_findMethod(Object o, String method, Object[] args, boolean debug) { Class c = o.getClass(); while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (m.getName().equals(method) && call_checkArgs(m, args, debug)) return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName()); } private static boolean call_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } static boolean isTrue(Object o) { return booleanValue(o); } static boolean isJavaIdentifier(String s) { if (s.length() == 0 || !Character.isJavaIdentifierStart(s.charAt(0))) return false; for (int i = 1; i < s.length(); i++) if (!Character.isJavaIdentifierPart(s.charAt(i))) return false; return true; } // extended over Class.isInstance() to handle primitive types static boolean isInstanceX(Class type, Object arg) { if (type == boolean.class) return arg instanceof Boolean; if (type == int.class) return arg instanceof Integer; if (type == long.class) return arg instanceof Long; if (type == float.class) return arg instanceof Float; if (type == short.class) return arg instanceof Short; if (type == char.class) return arg instanceof Character; if (type == byte.class) return arg instanceof Byte; if (type == double.class) return arg instanceof Double; return type.isInstance(arg); } static Object callFunction(Object f, Object... args) { if (f == null) return null; if (f instanceof Runnable) { ((Runnable) f).run(); return null; } else if (f instanceof String) return call(mc(), (String) f, args); else return call(f, "get", args); //else throw fail("Can't call a " + getClassName(f)); } static boolean booleanValue(Object o) { return eq(true, o); } static Class mc() { return getMainClass(); } static Class getMainClass() { try { return Class.forName("main"); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static Class getMainClass(Object o) { try { return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main"); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} }