C++读写文件代码自动生成器(python3完成)

最近写c++读写文件的代码写的非常痛苦，于是想出来用python写个自动的，这也是这篇文章出来的原因，写程序到了一定时候，正好也在学习python这么语言，于是就选择它来完成这个工作了。目前只完成了二进制的版本。

下面我就简单说明下，这个生成器是如何运作的，首先我们知道在c++中有些关键词，我们只要将这些词列为关键词，这些词，大致分为两类，一类是直接可以写入写出的，另一类是不可以的，我们把它们分成两个列表存储。

然后设计自己的定义生成文件的格式，我暂时定义为下面的情况：



第一行标识是文件名字，第二行是模式，为了以后加入文本文件做准备，然后就是一些结构体，我们来生成读写这些结构体的代码：

import sys # Load the sys module (导入sys模块)

SimpleKeyWordInCplusplus = ['int', 'float', 'char', 'unsigned char', 'long',
'unsigned int', 'unsigned long', 'unsigned float', 'wchar_t', 'double', 'unsigned double']
SpecialKeyWordInCplusplus = ['string', 'wstring', 'bool']

def OutputStructToList(ss,FileNameAndFileMode, TheStructS, FunctionName):
lineNumbers = len(ss)
for i in range(0, len(ss)):
lines = ss[i]
if(-1!=lines.find("fileName",0,len(lines))):
FileNameSplit= lines.split()
FileNameAndFileMode.append(FileNameSplit[1])
if(-1!=lines.find("functionName",0,len(lines))):
tmpFunctionName = lines.split()
FunctionName.append(tmpFunctionName[1])
if(-1!=lines.find("modle",0,len(lines))):
if(-1==lines.find(";",0,len(lines))):
FileMode = lines.split()
FileNameAndFileMode.append(FileMode[1])
FileNameAndFileMode.append(FileMode[2])
if(-1!=lines.find("struct",0,len(lines))):
if((i+1)<lineNumbers):
nextLines = ss[i+1]
if(-1!=nextLines.find("{", 0, len(nextLines))):
tmp = []
StructName = lines.split()[1];
TheStructS.append(StructName)
for j in range(i+2,lineNumbers):
theStructLine = ss[j]

if(-1!=theStructLine.find('}',0,len(theStructLine))):
break
else:
theStructLine=theStructLine.replace(';', ' ')
theStructLine=theStructLine.replace('[', ' ')
theStructLine=theStructLine.replace(']', ' ')
StructItem = theStructLine.split();
tmp.append(StructItem)
TheStructS.append(tmp)

def OutWriteFileFunction(FileNameAndFileMode, TheStructS, FunctionName,fp2):
structNumber = len(TheStructS)//2
for k in range(0, structNumber):
fp2.write('\n')
fp2.write('int\t'+'Write_'+TheStructS[2*k]+'('+'FILE'+'\t*fp,'+'const\t'+TheStructS[2*k])
fp2.write('\t&in'+TheStructS[2*k])
fp2.write(')\n')
fp2.write('{\n')
structItemsIndex = 2*k+1;
CurrentStructItemNumber =  len(TheStructS[structItemsIndex])
for i in range(0, CurrentStructItemNumber):
if(TheStructS[structItemsIndex][i][0] in SimpleKeyWordInCplusplus):
fp2.write('\tfwrite(&in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+',')
fp2.write('sizeof('+TheStructS[structItemsIndex][i][0]+')\t,')
if(3==len(TheStructS[structItemsIndex][i])):
fp2.write(TheStructS[structItemsIndex][i][2]+'\t,fp);\n')
else:
fp2.write('1'+'\t,fp);\n')
elif(SpecialKeyWordInCplusplus[0]==TheStructS[structItemsIndex][i][0]):
if(3==len(TheStructS[structItemsIndex][i])):
stringNumbers = TheStructS[structItemsIndex][i][2];

fp2.write('\tint stringNumbers = '+stringNumbers+';\n')
fp2.write('\tfwrite(&stringNumbers,\tsizeof(int)\t,1\t,fp)\n')
fp2.write('\tfor(int i=0;i<'+stringNumbers+',i++)\n')
fp2.write('\t{\n')
fp2.write('\t\t')
fp2.write('int theCurrentStringlength_v = in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'[i].length();\n')
fp2.write('\t\tfwrite(&theCurrentStringlength_v,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\t\tfwrite(&in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'[i].c_str(),')
fp2.write('\tsizeof(char)\t,theCurrentStringlength_v\t,fp);\n')
fp2.write('\t}\n')
else:
fp2.write('\tint theCurrentStringlength = in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'.length();\n')
fp2.write('\tfwrite(&theCurrentStringlength,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tfwrite(&in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'.c_str(),')
fp2.write('\tsizeof(char)\t,theCurrentStringlength\t,fp);\n')
elif(SpecialKeyWordInCplusplus[1]==TheStructS[structItemsIndex][i][0]):
if(3==len(TheStructS[structItemsIndex][i])):
wstringNumbers = TheStructS[structItemsIndex][i][2];
fp2.write('\tint wstringNumbers = '+wstringNumbers+';\n')
fp2.write('\tfwrite(&wstringNumbers,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tfor(int i=0;i<'+wstringNumbers+',i++)\n')
fp2.write('\t{\n')
fp2.write('\t\t')
fp2.write('int theCurrentWStringlength_v = in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'[i].length();\n')
fp2.write('\t\tfwrite(&theCurrentWStringlength_v,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\t\tfwrite(&'+TheStructS[structItemsIndex][i][1]+'[i].c_str(),')
fp2.write('\tsizeof(wchar_t)\t,theCurrentWStringlength_v\t,fp);\n')
fp2.write('\t}\n')
else:
fp2.write('\tint theCurrentWStringlength = in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'.length();\n')
fp2.write('\tfwrite(&theCurrentWStringlength,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tfwrite(&in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'.c_str(),')
fp2.write('\tsizeof(wchar_t)\t,theCurrentWStringlength\t,fp);\n')
elif(SpecialKeyWordInCplusplus[2]==TheStructS[structItemsIndex][i][0]):
if(3==len(TheStructS[structItemsIndex][i])):
boolNumbers = TheStructS[structItemsIndex][i][2];
fp2.write('\tint boolNumbers = '+boolNumbers+';\n')
fp2.write('\tfwrite(&boolNumbers,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tfor(int i=0;i<'+boolNumbers+',i++)\n')
fp2.write('\t{\n')
fp2.write('\t\t')
fp2.write('char boolValue = in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'[i]?1:-1;\n')
fp2.write('\t\tfwrite(&boolValue,\tsizeof(char)\t,1\t,fp);\n')
fp2.write('\t}\n')
else:
fp2.write('\tchar boolValue = in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'[i]?1:-1;\n')
fp2.write('\tfwrite(&boolValue,\tsizeof(char)\t,1\t,fp);\n')
else:
fp2.write('\tWrite_'+TheStructS[structItemsIndex][i][0])
fp2.write('(fp,in'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+');\n')
fp2.write('\n')
fp2.write('\treturn 0;\n')
fp2.write('}\n')

def OutReadFileFunction(FileNameAndFileMode, TheStructS, FunctionName, fp2):
structNumber = len(TheStructS)//2
for k in range(0, structNumber):
fp2.write('\n')
fp2.write('int\t'+'Read_'+TheStructS[2*k]+'('+'FILE'+'\t*fp,'+'\t'+TheStructS[2*k])
fp2.write('\t&out'+TheStructS[2*k]+'')
fp2.write(')\n')
fp2.write('{\n')
structItemsIndex = 2*k+1;
CurrentStructItemNumber =  len(TheStructS[structItemsIndex])
for i in range(0, CurrentStructItemNumber):
if(TheStructS[structItemsIndex][i][0] in SimpleKeyWordInCplusplus):
fp2.write('\tfread(&'+'out'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+',')
fp2.write('sizeof('+TheStructS[structItemsIndex][i][0]+')\t,')
if(3==len(TheStructS[structItemsIndex][i])):
fp2.write(TheStructS[structItemsIndex][i][2]+'\t,fp);\n')
else:
fp2.write('1'+'\t,fp)\n')
elif(SpecialKeyWordInCplusplus[0]==TheStructS[structItemsIndex][i][0]):
if(3==len(TheStructS[structItemsIndex][i])):
fp2.write('\tint stringNumbers;\n')
fp2.write('\tfread(&stringNumbers,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tfor(int i=0;i<stringNumbers,i++)\n')
fp2.write('\t{\n')
fp2.write('\t\t')
fp2.write('int theCurrentStringlength_v;\n')
fp2.write('\t\tfread(&theCurrentStringlength_v,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\t\tchar* tmpCharBuffer_v = new char[theCurrentStringlength_v+1];\n')
fp2.write('\t\tmemset(tmpCharBuffer_v, 0, theCurrentStringlength_v);\n')
fp2.write('\t\tfread(tmpCharBuffer_v')
fp2.write('\tsizeof(char)\t,theCurrentStringlength_v\t,fp);\n')
fp2.write('\t\tout'+TheStructS[2*k]+'.'+TheStructS[structItemsIndex][i][1]+'[i]=')
fp2.write('tmpCharBuffer_v;\n')
fp2.write('\t\tdelete []tmpCharBuffer_v;\n')
fp2.write('\t}\n')
else:
fp2.write('\tint theCurrentStringlength = out'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'.length();\n')
fp2.write('\tfread(&theCurrentStringlength,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tchar* tmpCharBuffer = new char[theCurrentStringlength+1];\n')
fp2.write('\tmemset(tmpCharBuffer, 0, theCurrentStringlength);\n')
fp2.write('\tfread(tmpCharBuffer')
fp2.write('\tsizeof(char)\t,theCurrentStringlength\t,fp);\n')
fp2.write('\tout'+TheStructS[2*k]+'.'+TheStructS[structItemsIndex][i][1]+'=')
fp2.write('tmpCharBuffer;\n')
fp2.write('\tdelete []tmpCharBuffer;\n')
elif(SpecialKeyWordInCplusplus[1]==TheStructS[structItemsIndex][i][0]):
if(3==len(TheStructS[structItemsIndex][i])):
fp2.write('\tint stringNumbers;\n')
fp2.write('\tfread(&stringNumbers,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tfor(int i=0;i<stringNumbers,i++)\n')
fp2.write('\t{\n')
fp2.write('\t\t')
fp2.write('int theCurrentWStringlength_v;\n')
fp2.write('\t\tfread(&theCurrentWStringlength_v,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\t\twchar_t* tmpwCharBuffer_v = new wchar_t[theCurrentWStringlength_v+1];\n')
fp2.write('\t\tmemset(tmpwCharBuffer_v, 0, theCurrentWStringlength_v*sizeof(wchar_t));\n')
fp2.write('\t\tfread(tmpwCharBuffer_v')
fp2.write('\tsizeof(wchar_t)\t,theCurrentWStringlength_v\t,fp);\n')
fp2.write('\t\tout'+TheStructS[2*k]+'.'+TheStructS[structItemsIndex][i][1]+'[i]=')
fp2.write('tmpwCharBuffer_v;\n')
fp2.write('\t\tdelete []tmpwCharBuffer_v;\n')
fp2.write('\t}\n')
else:
fp2.write('\tint theCurrentStringlength = out'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+'.length();\n')
fp2.write('\tfread(&theCurrentStringlength,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\twchar_t* tmpwCharBuffer = new wchar_t[theCurrentStringlength+1];\n')
fp2.write('\tmemset(tmpwCharBuffer, 0, theCurrentStringlength*sizeof(wchar_t));\n')
fp2.write('\tfread(tmpwCharBuffer')
fp2.write('\tsizeof(wchar_t)\t,theCurrentStringlength\t,fp);\n')
fp2.write('\tout'+TheStructS[2*k]+'.'+TheStructS[structItemsIndex][i][1]+'=')
fp2.write('tmpwCharBuffer;\n')
fp2.write('\tdelete []tmpwCharBuffer;\n')
elif(SpecialKeyWordInCplusplus[2]==TheStructS[structItemsIndex][i][0]):
if(3==len(TheStructS[structItemsIndex][i])):
fp2.write('\tint boolNumbers;\n')
fp2.write('\tfread(&boolNumbers,\tsizeof(int)\t,1\t,fp);\n')
fp2.write('\tfor(int i=0;i<boolNumbers,i++)\n')
fp2.write('\t{\n')
fp2.write('\t\t')
fp2.write('char boolValue_v;\n')
fp2.write('\t\tfread(&boolValue_v,\tsizeof(char)\t,1\t,fp);\n')
fp2.write('\t\tout'+TheStructS[2*k]+'.'+TheStructS[structItemsIndex][i][1])
fp2.write('[i]=((1==boolValue_v)?true:false);\n')
fp2.write('\t}\n')
else:
fp2.write('\tchar boolValue;\n')
fp2.write('\tfread(&boolValue,\tsizeof(char)\t,1\t,fp);\n')
fp2.write('\tout'+TheStructS[2*k]+'.'+TheStructS[structItemsIndex][i][1])
fp2.write('=((1==boolValue)?true:false);\n')
else:
fp2.write('\tRead_'+TheStructS[structItemsIndex][i][0])
fp2.write('(fp,out'+TheStructS[2*k]+'.')
fp2.write(TheStructS[structItemsIndex][i][1]+');\n')
fp2.write('\n')
fp2.write('\treturn 0;\n')
fp2.write('}\n')

def outFinalWriteAndRead(FileNameAndFileMode,fp2):
fp2.write('\n')
fp2.write('int WriteFinal(string strPath,'+'YourParam param)\n')
fp2.write('{\n')
fp2.write('\tFILE *fp;\n')
fp2.write('\tfp= fopen(filename.c_str(),"'+FileNameAndFileMode[1]+'");\n')
fp2.write('\tif(NULL==fp)\n')
fp2.write('\t{\n')
fp2.write('\t\treturn -1;\n')
fp2.write('\t}\n')
fp2.write('\t//write Your Code Here!\n')
fp2.write('\n\n\n\n\n\n')
fp2.write('\tfclose(fp);\n')
fp2.write('\treturn 0;\n')
fp2.write('}\n')
fp2.write('\n')
fp2.write('int ReadFinal(string strPath,'+'YourParam param)\n')
fp2.write('{\n')
fp2.write('\tFILE *fp;\n')
fp2.write('\tfp= fopen(filename.c_str(),"'+FileNameAndFileMode[2]+'");\n')
fp2.write('\tif(NULL==fp)\n')
fp2.write('\t{\n')
fp2.write('\t\treturn -1;\n')
fp2.write('\t}\n')
fp2.write('\t//write Your Code Here!\n')
fp2.write('\n\n\n\n\n\n')
fp2.write('\tfclose(fp);\n')
fp2.write('\treturn 0;\n')
fp2.write('}\n')

def outFunction(src, dest):
fp = open(src, 'r+')
ss = fp.readlines();
fp.close()
print(len(ss))
FileNameAndFileMode =[]
FunctionName =[]
TheStructS = []
OutputStructToList(ss,FileNameAndFileMode , TheStructS, FunctionName)
fp2 = open(dest+FileNameAndFileMode[0]+'.cpp','w+')
fp2.write('#include'+'\t'+'<string>\n')
fp2.write('using namespace std;\n')
fp2.write('#include'+'\t'+'"'+FileNameAndFileMode[0]+'.h'+'"\n')
OutWriteFileFunction(FileNameAndFileMode, TheStructS, FunctionName, fp2)
OutReadFileFunction(FileNameAndFileMode, TheStructS, FunctionName, fp2)
outFinalWriteAndRead(FileNameAndFileMode,fp2)

fp2.flush()
fp2.close()

outFunction('N:/pythonProject/1.txt', 'N:/pythonProject/')




这是我的python代码，python的版本是3.3，这样我们就可以生成自己想要的读取文件的代码了，然后我们看下生成的c++代码：

#include	<string>
using namespace std;
#include	"fileName.h"

int	Write_sss(FILE	*fp,const	sss	&inputStruct)
{
fwrite(&inputStruct.a,sizeof(int)	,15	,fp);
fwrite(&inputStruct.b,sizeof(float)	,13	,fp);
fwrite(&inputStruct.c,sizeof(char)	,1	,fp);
return 0;
}

int	Write_ff(FILE	*fp,const	ff	&inputStruct)
{
int stringNumbers = 10;
fwrite(&stringNumbers,	sizeof(int)	,1	,fp)
for(int i=0;i<10,i++)
{
int theCurrentStringlength_v = inputStruct.d[i].length();
fwrite(&theCurrentStringlength_v,	sizeof(int)	,1	,fp);
fwrite(&inputStruct.d[i].c_str(),	sizeof(char)	,theCurrentStringlength_v	,fp);
}
int theCurrentStringlength = inputStruct.f.length();
fwrite(&theCurrentStringlength,	sizeof(int)	,1	,fp);
fwrite(&inputStruct.f.c_str(),	sizeof(char)	,theCurrentStringlength	,fp);
return 0;
}

int	Write_wff(FILE	*fp,const	wff	&inputStruct)
{
int wstringNumbers = 10;
fwrite(&wstringNumbers,	sizeof(int)	,1	,fp);
for(int i=0;i<10,i++)
{
int theCurrentWStringlength_v = inputStruct.d[i].length();
fwrite(&theCurrentWStringlength_v,	sizeof(int)	,1	,fp);
fwrite(&d[i].c_str(),	sizeof(wchar_t)	,theCurrentWStringlength_v	,fp);
}
int theCurrentWStringlength = inputStruct.f.length();
fwrite(&theCurrentWStringlength,	sizeof(int)	,1	,fp);
fwrite(&inputStruct.f.c_str(),	sizeof(wchar_t)	,theCurrentWStringlength	,fp);
return 0;
}

int	Write_booltest(FILE	*fp,const	booltest	&inputStruct)
{
int boolNumbers = 10;
fwrite(&boolNumbers,	sizeof(int)	,1	,fp);
for(int i=0;i<10,i++)
{
char boolValue = inputStruct.ffss[i]?1:-1;
fwrite(&boolValue,	sizeof(char)	,1	,fp);
}
char boolValue = inputStruct.ssfd[i]?1:-1;
fwrite(&boolValue,	sizeof(char)	,1	,fp);
return 0;
}

int	Write_dd(FILE	*fp,const	dd	&inputStruct)
{
Write_sss(fp,inputStruct.aa);

Write_ff(fp,inputStruct.bb);

return 0;
}

int	Read_sss(FILE	*fp,	sss	&inputStruct)
{
fread(&inputStruct.a,sizeof(int)	,15	,fp);
fread(&inputStruct.b,sizeof(float)	,13	,fp);
fread(&inputStruct.c,sizeof(char)	,1	,fp)
return 0;
}

int	Read_ff(FILE	*fp,	ff	&inputStruct)
{
int stringNumbers;
fread(&stringNumbers,	sizeof(int)	,1	,fp);
for(int i=0;i<stringNumbers,i++)
{
int theCurrentStringlength_v;
fread(&theCurrentStringlength_v,	sizeof(int)	,1	,fp);
char* tmpCharBuffer_v = new char[theCurrentStringlength_v+1];
memset(tmpCharBuffer_v, 0, theCurrentStringlength_v);
fread(tmpCharBuffer_v	sizeof(char)	,theCurrentStringlength_v	,fp);
inputStruct.d[i]=tmpCharBuffer_v;
delete []tmpCharBuffer_v;
}
int theCurrentStringlength = inputStruct.f.length();
fread(&theCurrentStringlength,	sizeof(int)	,1	,fp);
char* tmpCharBuffer = new char[theCurrentStringlength+1];
memset(tmpCharBuffer, 0, theCurrentStringlength);
fread(tmpCharBuffer	sizeof(char)	,theCurrentStringlength	,fp);
inputStruct.f=tmpCharBuffer;
delete []tmpCharBuffer;
return 0;
}

int	Read_wff(FILE	*fp,	wff	&inputStruct)
{
int stringNumbers;
fread(&stringNumbers,	sizeof(int)	,1	,fp);
for(int i=0;i<stringNumbers,i++)
{
int theCurrentWStringlength_v;
fread(&theCurrentWStringlength_v,	sizeof(int)	,1	,fp);
wchar_t* tmpwCharBuffer_v = new wchar_t[theCurrentWStringlength_v+1];
memset(tmpwCharBuffer_v, 0, theCurrentWStringlength_v*sizeof(wchar_t));
fread(tmpwCharBuffer_v	sizeof(wchar_t)	,theCurrentWStringlength_v	,fp);
inputStruct.d[i]=tmpwCharBuffer_v;
delete []tmpwCharBuffer_v;
}
int theCurrentStringlength = inputStruct.f.length();
fread(&theCurrentStringlength,	sizeof(int)	,1	,fp);
wchar_t* tmpwCharBuffer = new wchar_t[theCurrentStringlength+1];
memset(tmpwCharBuffer, 0, theCurrentStringlength*sizeof(wchar_t));
fread(tmpwCharBuffer	sizeof(wchar_t)	,theCurrentStringlength	,fp);
inputStruct.f=tmpwCharBuffer;
delete []tmpwCharBuffer;
return 0;
}

int	Read_booltest(FILE	*fp,	booltest	&inputStruct)
{
int boolNumbers;
fread(&boolNumbers,	sizeof(int)	,1	,fp);
for(int i=0;i<boolNumbers,i++)
{
char boolValue_v;
fread(&boolValue_v,	sizeof(char)	,1	,fp);
inputStruct.ffss[i]=((1==boolValue_v)?true:false);
}
char boolValue;
fread(&boolValue,	sizeof(char)	,1	,fp);
inputStruct.ssfd=((1==boolValue)?true:false);
return 0;
}

int	Read_dd(FILE	*fp,	dd	&inputStruct)
{
Read_sss(fp,inputStruct.aa);

Read_ff(fp,inputStruct.bb);

return 0;
}

int WriteFinal(string strPath,YourParam param)
{
FILE *fp;
fp= fopen(filename.c_str(),"wb");
if(NULL==fp)
{
return -1;
}
//write Your Code Here!

fclose(fp);
return 0;
}

int ReadFinal(string strPath,YourParam param)
{
FILE *fp;
fp= fopen(filename.c_str(),"rb");
if(NULL==fp)
{
return -1;
}
//write Your Code Here!

fclose(fp);
return 0;
}


代码看起来还是有些凌乱，不过大家有兴趣可以重写写一下python代码，把他变得更加健壮！好了我又丢了一块板砖出来。希望大家喜欢！