生成生成代码的工具（python实现）
在应用开发中，我们经常会通过工具生成一些代码以提高开发效率，而本文则通过python将正常代码转成生成该代码的工具，并自动将原始代码类名、函数名等转成参数，目前只支持c#语言（待优化），一下是python工具代码：
1 #!/usr/bin/ python 2 # -*- coding:utf-8 -*- 3 #操作同路径下的所有.cs .lua文件，并生成自动生成该cs文件的代码 4 import os 5 global classCount,lastClassName 6 7 def MachiningSourceCode(x): 8 global classCount,lastClassName 9 if x.find('class') >= 0: 10 #类名由tool方法参数决定 11 classCount = classCount + 1 12 xarr = x.split() 13 nindex = -1 14 for a in range(len(xarr)): 15 if xarr[a] == 'class': 16 nindex = a 17 break 18 lastClassName = xarr[nindex + 1] 19 xarr[nindex + 1] = '{0}' 20 x = ' '.join(xarr) 21 x = ' stringBuilder.AppendFormat(\"'+x.strip('\n').replace('\"','\\"')+'\\n\",className%d);\n' % classCount 22 elif x.find(lastClassName) >= 0: 23 #处理构造函数类名也由tool方法参数决定 24 x = x.replace(lastClassName,'{0}') 25 x = ' stringBuilder.AppendFormat(\"'+x.strip('\n').replace('\"','\\"')+'\\n\",className%d);\n' % classCount 26 else: 27 x = ' stringBuilder.AppendLine(\"'+x.strip('\n').replace('\"','\\"')+'\");\n' 28 return x 29 30 #生成自动生成工具代码 31 def GenerateAutoCreatingToolCode(f,newfileName): 32 lines = f.readlines() 33 global classCount 34 classCount = 0 35 newlines = map(MachiningSourceCode,lines) 36 toolFuncParam = '' 37 if classCount > 0: 38 for x in range(classCount): 39 toolFuncParam = toolFuncParam + ',string className%d' % (x + 1) 40 namespaceReference = 'using UnityEngine;\nusing System.Text;\nusing System.IO;\n\n' 41 classAndFunc = 'public static class %s\n {\n public static void CreateClass(string stSaveFilePath %s,string stNameSpace = "")\n {\n \ 42 if (string.IsNullOrEmpty(stSaveFilePath))\n {\n return;\n }\n \ 43 StringBuilder stringBuilder = new StringBuilder();\n' % (newfileName,toolFuncParam) 44 nameSpace = ' if (!string.IsNullOrEmpty(stNameSpace))\n {\n stringBuilder.AppendFormat\ 45 (string.Format(\"namespace {0}\\n\", stNameSpace));\n stringBuilder.AppendLine(\"{\");\n }\n' 46 saveFile = ' if (!string.IsNullOrEmpty(stNameSpace))\n {\n stringBuilder.AppendLine(\"}\");\n }\n \ 47 File.WriteAllText(stSaveFilePath, stringBuilder.ToString());\n }\n}' 48 newlines.insert(0,namespaceReference) 49 newlines.insert(1,classAndFunc) 50 newlines.insert(2,nameSpace) 51 newlines.insert(len(newlines),saveFile) 52 return newlines 53 54 if __name__ == '__main__': 55 try: 56 global lastClassName 57 lastClassName = 'lastClassName' 58 59 #创建生成代码文件夹 60 currentPath = os.path.abspath('.') 61 createFilePath = os.path.join(currentPath,'createFile') 62 if not os.path.exists(createFilePath): 63 os.mkdir(createFilePath) 64 65 for x in os.listdir("."): 66 if os.path.isfile(x) and (os.path.splitext(x)[1] == '.cs' or os.path.splitext(x)[1] == '.lua'): 67 readFilePath = os.path.join(currentPath,x) 68 newfileName = 'Create%sAuto' % os.path.splitext(x)[0] 69 newfile = newfileName + os.path.splitext(x)[1] 70 writeFilePath = os.path.join(createFilePath,newfile) 71 with open(readFilePath,'r') as f: 72 newlines = GenerateAutoCreatingToolCode(f,newfileName) 73 74 #生成代码文件 75 if os.path.exists(writeFilePath): 76 os.remove(writeFilePath) 77 print('delete old file:%s' % writeFilePath) 78 with open(writeFilePath,'w') as fw: 79 fw.writelines(newlines) 80 except Exception as e: 81 print(e) 82 n = input() 83
