从用python自动生成.h的头文件集合和类声明集合到用python读写文件

最近在用python自动生成c++的类.因为这些类会根据需求不同产生不同的类,所以需要用python自动生成.由于会产生大量的类,而且这些类是变化的.所以如果是在某个.h中要用include来加载这些类,会累死人的.所以用python来生成这些类的头文件引用和类的类名声明

先看例子,再聊python的读写文件的代码 在聊聊我的python代码

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好吧.上面的图就是面临的需求

下面来聊聊从网上找的读写文件的python代码吧.csdn的一个博主写的很详细.  python如何读写文件:http://blog.csdn.net/adupt/article/details/4435615

仔细阅读完博主的讲解后,有这么一段

file_object = open('thefile.txt')
try:
     all_the_text = file_object.read( )
finally:
     file_object.close( )

针对上面的这段代码我会在来个说明 关于 try except finally with 等的帖子 <python中的 try except finally with>

恩.好了,下面把我的python代码也就是实现最开始的截图的代码放这里 供自己以后类似的情况来参考

 #!/usr/bin/python                                   #此文件是自动生成头文件声明的python脚本
 # -*- encoding: utf-8 -*-
 import os

 def generateRecordsHeaderInclude(folderPath):

     try:
         filePath = os.path.join(folderPath,"misc_records.h")
         with open(filePath, "w") as file:
             recordsFolderPath = os.path.join(folderPath, 'records') #E:\fare_uuid\misc\include\misc\records  存放生成的类的.h
             includeNames = os.listdir(recordsFolderPath)  #获取records文件夹下的所有文件名
             #写c++代码
             file.write("#ifndef MISC_MISC_RECORDS_H_\n")
             file.write("#define MISC_MISC_RECORDS_H_\n")
             file.write("\n//Records\n")

             for includeName in includeNames:
                 file.write('#include "misc/records/%s"\n' % includeName)

             file.write("#endif /* MISC_MISC_RECORDS_H_ */")
     except:
         print "create file %s\\misc_records.h error" % folderPath
         return

     print "create file %s\\misc_records.h success!" % folderPath

 if __name__ == '__main__':
     homedir = r"E:\farestar_uuid\misc"
     folderPath = os.path.join(homedir, 'include', 'misc')
     print 'folderPath = ' + folderPath

     generateRecordsHeaderInclude(folderPath)  #E:\farestar_uuid\misc\include\misc

 #!/usr/bin/python                                       #此文件是自动生成c++类的类名声明的python脚本
 # -*- encoding: utf-8 -*-
 import os

 def getStructName(recFilePath, fwdFilePath):
     try:
         with open(recFilePath, 'r') as file:
             for line in file:
                 if 'struct' in line and ': public MiscObject' in line:
                     words = line.split(" ")
                     structIndex = words.index('struct')    # 类名里面是    struct xxx : public MiscObject 所以读到这一行的时候就拆解处 类名来
                     return words[structIndex+1]
     except:
         print 'read %s error' % filePath
         print 'create %s error' % fwdFilePath
         raise RuntimeError("create %s error in genRecordsStructDeclare.py" % fwdFilePath)

 def generateRecordsStructDeclare(folderPath):
     try:
         fwdFilePath = os.path.join(folderPath,"misc_fwd.h")  #类名声明的头文件
         with open(fwdFilePath, "w") as file:
             recordsFolderPath = os.path.join(folderPath, 'records')  #所以的类名的.h文件在records文件夹下
             recFileNames = os.listdir(recordsFolderPath)

             file.write("#ifndef MISC_MISC_FWD_H_\n")
             file.write("#define MISC_MISC_FWD_H_\n")

             file.write('#include "misc/miscid.h"\n')
             file.write('#include "misc/miscerrorcode.h"\n')
             file.write('namespace misc\n')
             file.write('{\n')
             for recFileName in recFileNames:
                 recFilePath = os.path.join(recordsFolderPath, recFileName)  #xxxx/recors/agency.h
                 structName = getStructName( recFilePath,  fwdFilePath)
                 file.write('    struct %s;\n' % structName)  #生成一行类名声明
             file.write('}\n')

             #file.write('#include "misc/records/%s"\n' % includeName)

             file.write("#endif /* MISC_MISC_FWD_H_ */")
     except:
         print "create file %s error" % fwdFilePath
         return

     print "create file %s success!" % fwdFilePath

 if __name__ == '__main__':
     homedir = r"E:\farestar_uuid\misc"
     folderPath = os.path.join(homedir, 'include', 'misc')
     print 'folderPath = ' + folderPath

     generateRecordsHeaderInclude(folderPath)