Windows下Command Line中的中文字符是采用ANSI编码来处理的，而Perforce command line要求传入的中文参数（文件（夹）名）为UTF-8编码，所以需要将中文参数转换为UTF-8后再做处理，下面介绍两种处理方法。
一、系统调用
通过使用WinExec、ShellExecute或system，如：
_snprintf(cmdbuf , 1024 , "p4 -c %s add \"%s\"" , argv[1] , ANSIToUTF8(path.c_str()));
system(cmdbuf);
此方法的虽然简单，但存在效率问题，因为有创建进程的巨大开销。此外不同版本的Perforce也会出现不同的执行结果，针对特定的中文会出现操作失败的诡异问题。
二、Perforce SDK
Perforce提供有SDK用以扩展或集成到其他应用中，虽然没有详细的文档，但可以通过学习SDK中的sample文件来学习，此方法最稳定。
下面代码展示了通过SDK中ClientAPI来递归添加指定文件夹下的所有文件：
# include "clientapi.h"
# include "i18napi.h"
# include "CharSetConvertUtil.h"
# include <string>
# include <vector>
# include <list>
# include <io.h>
using namespace std;
// structure to hold a directory and all its filenames.
struct FILELIST
{
string path;
vector<string> theList;
};
void TransverseDirectory(string path, list<FILELIST>& theList)
{
struct _finddatai64_t data;
string fname = path + "\\*.*";
long h = _findfirsti64(fname.c_str(),&data);
if(h >= 0)
{
FILELIST thisList;
theList.push_back(thisList);
list<FILELIST>::iterator it = theList.end();
it--;
(*it).path = path;
do {
if( (data.attrib & _A_SUBDIR) )
{
// make sure we skip "." and "..". Have to use strcmp here because
// some file names can start with a dot, so just testing for the
// first dot is not suffient.
if( strcmp(data.name,".") != 0 &&strcmp(data.name,"..") != 0)
{
// We found a sub-directory, so get the files in it too
fname = path + "\\" + data.name;
// recurrsion here!
TransverseDirectory(fname,theList);
}
}
else
{
// this is just a normal filename. So just add it to our vector
(*it).theList.push_back(data.name);
}
}while( _findnexti64(h,&data) == 0);
_findclose(h);
}
}
int main( int argc, char **argv )
{
list<FILELIST> MyList;
string path;
ClientUser ui;
ClientApi client;
StrBuf msg;
Error e;
if(argc < 4)
{
fprintf( stderr , "P4 Transverse Add: Arguments Error!\n");
return -1;
}
client.SetPort(argv[1]);
client.SetClient(argv[2]);
client.SetTrans(CharSetApi::UTF_8 , CharSetApi::UTF_8 ,
CharSetApi::UTF_8,
CharSetApi::UTF_8);
TransverseDirectory(argv[3],MyList);
// Connect to server
client.Init( &e );
if( e.Test() )
{
e.Fmt( &msg );
fprintf( stderr, "%s\n", msg.Text() );
return -1;
}
list<FILELIST>::iterator it;
for(it = MyList.begin(); it != MyList.end(); it++)
{
vector<string>::iterator its;
for(its = (*it).theList.begin(); its != (*it).theList.end(); its++)
{
path = (*it).path + "\\" + (*its);
char* pText = ANSIToUTF8(path.c_str());
client.SetArgv( 1 , &pText);
client.Run( "add" , &ui );
}
}
// Close connection
client.Final( &e );
if( e.Test() )
{
e.Fmt( &msg );
fprintf( stderr, "%s\n", msg.Text() );
return -1;
}
return 0;
} 此方法省去了创建p4进程的开销，任务执行效率会提高不少，而且也不会出现执行结果不稳定的问题。
附一：SDK下载地址
ftp://ftp.perforce.com/perforce/
附二：附上ANSI转UTF-8代码
wchar_t* ANSIToUnicode( const char* str )
{
int textlen ;
wchar_t * result;
textlen = MultiByteToWideChar( CP_ACP, 0, str,-1, NULL,0 );
result = (wchar_t *)malloc((textlen+1)*sizeof(wchar_t));
memset(result,0,(textlen+1)*sizeof(wchar_t));
MultiByteToWideChar(CP_ACP, 0,str,-1,(LPWSTR)result,textlen );
return result;
}
char* UnicodeToANSI( const wchar_t *str )
{
char * result;
int textlen;
// wide char to multi char
textlen = WideCharToMultiByte( CP_ACP, 0, str, -1, NULL, 0, NULL, NULL );
result =(char *)malloc((textlen+1)*sizeof(char));
memset( result, 0, sizeof(char) * ( textlen + 1 ) );
WideCharToMultiByte( CP_ACP, 0, str, -1, result, textlen, NULL, NULL );
return result;
}
wchar_t* UTF8ToUnicode( const char* str )
{
int textlen ;
wchar_t * result;
textlen = MultiByteToWideChar( CP_UTF8, 0, str,-1, NULL,0 );
result = (wchar_t *)malloc((textlen+1)*sizeof(wchar_t));
memset(result,0,(textlen+1)*sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8, 0,str,-1,(LPWSTR)result,textlen );
return result;
}
char* UnicodeToUTF8( const wchar_t *str )
{
char * result;
int textlen;
// wide char to multi char
textlen = WideCharToMultiByte( CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL );
result =(char *)malloc((textlen+1)*sizeof(char));
memset(result, 0, sizeof(char) * ( textlen + 1 ) );
WideCharToMultiByte( CP_UTF8, 0, str, -1, result, textlen, NULL, NULL );
return result;
}
char* ANSIToUTF8(const char* str)
{
wchar_t* pUnicodeBuff = ANSIToUnicode(str);
char* pUtf8Buff = UnicodeToUTF8(pUnicodeBuff);
free(pUnicodeBuff);
return pUtf8Buff;
}