刪除c,c++,java源檔案中全部注釋的Python指令碼

#!D:\Python32# -*- coding: utf-8-*-# 過濾JAVA程式中的注釋# 如果字串中有注釋符號的話會有問題。import osimport reimport io# 改這個目錄！！！top_dir = "E:\\work2\\";# 狀態S_INIT              = 0;S_SLASH             = 1;S_BLOCK_COMMENT     = 2;S_BLOCK_COMMENT_DOT = 3;S_LINE_COMMENT      = 4;S_STR               = 5;S_STR_ESCAPE        = 6;def trim_dir(path):  print("dir：" + path);  for root, dirs, files in os.walk(path):    for name in files:      trim_file(os.path.join(root, name))          #for name in dirs:      #trim_dir(os.path.join(root, name))def trim_file(path):  print("file:" + path);  if re.match(r".*?\.(java|c|cpp|h)$", path):    print("process");  else:    print("ignore");    return;  bak_file = path + ".bak";  try:    os.rename(path, bak_file);  except:    print "bak except",bak_file;  fp_src = open(bak_file);  fp_dst = open(path, 'w');  state = S_INIT;  for line in fp_src.readlines():    for c in line:      if state == S_INIT:        if c == '/':          state = S_SLASH;        elif c == '"':          state = S_STR;          fp_dst.write(c);        else:          fp_dst.write(c);      elif state == S_SLASH:        if c == '*':          state = S_BLOCK_COMMENT;        elif c == '/':          state = S_LINE_COMMENT;        else:          fp_dst.write('/');          fp_dst.write(c);          state=S_INIT;      elif state == S_BLOCK_COMMENT:        if c == '*':          state = S_BLOCK_COMMENT_DOT;      elif state == S_BLOCK_COMMENT_DOT:        if c == '/':          state = S_INIT;        elif c=='*':          state=S_BLOCK_COMMENT_DOT; #再次碰到*號還是要繼續狀態，否則會出錯        else:          state = S_BLOCK_COMMENT;      elif state == S_LINE_COMMENT:        if c == '\n':          state = S_INIT;          fp_dst.write(c);      elif state == S_STR:        if c == '\\':          state = S_STR_ESCAPE;        elif c == '"':          state = S_INIT;        fp_dst.write(c);      elif state == S_STR_ESCAPE:        # 這裡未完全實現全部序列，如\oNNN \xHH \u1234 \U12345678，但沒影響        state = S_STR;         fp_dst.write(c);  fp_src.close();  fp_dst.close();  #os.remove(bak_file);trim_dir(top_dir);

　　需要說明的是這段程式來自：http://blog.csdn.net/codearhat/article/details/6852483#comments

但是裡面有兩個問題，會引起錯誤，現在經驗證可以在我的項目中使用，但是不保證完全沒有錯誤，有錯誤希望和我聯絡，也可以和原作者聯絡