String Parsing in C++ (Simple Question)

[ksaw123]

Hi All I have this string /work1/data/xxxx/yyy/file_name.txt how to extract "only" the path name without the file name in C++ thanks

[vipin_nvk]

Try out splitpath API, it will meet your requirement, check out MSDN for the syntax Thanx

[ksaw123]

No , I need C++ buitl-in class or a play around not Microsoft C++

[Chandrasekharan P]

you need to create your own function for this. go ahead and try it. if you are stuck ask for help.

[N a v a n e e t h]

Tried boost tokenizer[^]? :)

Navaneeth How to use google | Ask smart questions

[PrafullaVedante]

Use the following line of code.

dirPath =fullFilePath.substr(0,(fullFilePath.find_last_of(L"\\")));

Prafulla Vedante

[chandu004]

traverse the char array from end (in reverse way) till you see a / and then replace '\0' there.

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[CPallini]

const char * path = "/work1/data/xxxx/yyy/file_name.txt";
const char * filename;
filename = path+strlen(path);
while (filename != path && *(filename) != '/')
filename--;
if ( filename != path) filename++;

:)

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[Stuart Dootson]

If you want simple hack, then

std::string s = "/work1/data/xxxx/yyy/file_name.txt";

std::string::size_type lastSep = s.find_last_of('/');
if (lastSep != std::string::npos)
s.erase(lastSep);

If you want a nice cross-platform for manipulating file paths, I'll recommend Boost.FileSystem[^], where you can do this:

boost::filesystem::path justThePath("/work1/data/xxxx/yyy/file_name.txt");
justThePath.remove_filename();

Oh - and it'll happily deal with Windows vs Unix path conventions.

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[David Crow]

ksaw123 wrote:

how to extract "only" the path name without the file name in C++

Have you tried PathRemoveFileSpec()?

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