blocks|key|799701|text|boost库有一个file+system组件"basic_path“，它允许您使用迭代器来发现文件名中的每个组件。这样的组件是特定于操作系统的，我相信你需要为Windows、Linux等单独编译boost。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|799702|entityMap|0|LINK|mutability|MUTABLE|url|http://www.boost.org/doc/libs/1_45_0/libs/filesystem/v2/doc/index.htm^0|9|B|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

The boost library has a <a href="http://www.boost.org/doc/libs/1_45_0/libs/filesystem/v2/doc/index.htm" rel="nofollow">file system</a> component "basic_path" that allows you use iterators to discover each component in the filename. Such a component would be OS specific, and I believe you need to compile boost separately for Windows, Linux etc.

blocks|key|1014113|text|我只是写了这个简单的函数。它的行为类似于Matlab的fileparts，并且独立于平台工作。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1014114|struct+FileParts
{
++++string+path;
++++string+name;
++++string+ext;
};

FileParts+fileparts(string+filename)
{
++++int+idx0+=+filename.rfind("/");
++++int+idx1+=+filename.rfind(".");

++++FileParts+fp;
++++fp.path+=+filename.substr(0,idx0%2B1);
++++fp.name+=+filename.substr(idx0%2B1,idx1-idx0-1);
++++fp.ext++=+filename.substr(idx1);

++++return+fp;
}|code-block|syntax|javascript|1014115|entityMap^0|R|9|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

I just wrote this simple function. It behaves similar as Matlab's <code>fileparts</code> and works independent of platform. 

<pre><code>struct FileParts
{
 string path;
 string name;
 string ext;
};

FileParts fileparts(string filename)
{
 int idx0 = filename.rfind("/");
 int idx1 = filename.rfind(".");

 FileParts fp;
 fp.path = filename.substr(0,idx0+1);
 fp.name = filename.substr(idx0+1,idx1-idx0-1);
 fp.ext = filename.substr(idx1);

 return fp;
}
</code></pre>

blocks|key|1014156|text|C%2B%2B11/14的一种平台无关的方式。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1014157|#include+<experimental/filesystem>+

namespace+fs+=+std::experimental::filesystem;
void+fileparts(string+full,+string&+fpath,+string&+fname,+string&+fext)
{
++++auto+source+=+fs::path(full);
++++fpath+=+source.parent_path().string();
++++fname+=+source.stem().string();
++++fext+=+source.extension().string();
}
...
string+fpath,+fname,+fext;
fileparts(full_file_path,fpath,fname,fext);|code-block|syntax|javascript|1014158|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

A platform-independent way with C++11/14.

<pre><code>#include &lt;experimental/filesystem&gt; 

namespace fs = std::experimental::filesystem;
void fileparts(string full, string&amp; fpath, string&amp; fname, string&amp; fext)
{
 auto source = fs::path(full);
 fpath = source.parent_path().string();
 fname = source.stem().string();
 fext = source.extension().string();
}
...
string fpath, fname, fext;
fileparts(full_file_path,fpath,fname,fext);
</code></pre>

blocks|key|799783|text|Ekalic的纯文本方法很有用，但它没有检查错误。下面是一个这样做的代码，它还可以同时使用/和\|type|unstyled|depth|inlineStyleRanges|entityRanges|data|799784|struct+FileParts
{
++++std::string+path;+//!<+containing+folder,+if+provided,+including+trailing+slash
++++std::string+name;+//!<+base+file+name,+without+extension
++++std::string+ext;++//!<+extension,+including+'.'
};

//!+Using+only+text+manipulation,+splits+a+full+path+into+component+file+parts
FileParts+fileparts(const+std::string+&fullpath)
{
++++using+namespace+std;

++++size_t+idxSlash+=+fullpath.rfind("/");
++++if+(idxSlash+==+string::npos)+{
++++++++idxSlash+=+fullpath.rfind("\\");
++++}
++++size_t+idxDot+=+fullpath.rfind(".");

++++FileParts+fp;
++++if+(idxSlash+!=+string::npos+&&+idxDot+!=+string::npos)+{
++++++++fp.path+=+fullpath.substr(0,+idxSlash+%2B+1);
++++++++fp.name+=+fullpath.substr(idxSlash+%2B+1,+idxDot+-+idxSlash+-+1);
++++++++fp.ext++=+fullpath.substr(idxDot);
++++}+else+if+(idxSlash+==+string::npos+&&+idxDot+==+string::npos)+{
++++++++fp.name+=+fullpath;
++++}+else+if+(/*+only+*/+idxSlash+==+string::npos)+{
++++++++fp.name+=+fullpath.substr(0,+idxDot);
++++++++fp.ext++=+fullpath.substr(idxDot);
++++}+else+{+//+only+idxDot+==+string::npos
++++++++fp.path+=+fullpath.substr(0,+idxSlash+%2B+1);
++++++++fp.name+=+fullpath.substr(idxSlash+%2B+1);
++++}
++++return+fp;
}|code-block|syntax|javascript|799785|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Ekalic's text-only approach is useful, but it didn't check for errors. Here's one that does, and also works with both / and \

<pre><code>struct FileParts
{
 std::string path; //!&lt; containing folder, if provided, including trailing slash
 std::string name; //!&lt; base file name, without extension
 std::string ext; //!&lt; extension, including '.'
};

//! Using only text manipulation, splits a full path into component file parts
FileParts fileparts(const std::string &amp;fullpath)
{
 using namespace std;

 size_t idxSlash = fullpath.rfind("/");
 if (idxSlash == string::npos) {
 idxSlash = fullpath.rfind("\\");
 }
 size_t idxDot = fullpath.rfind(".");

 FileParts fp;
 if (idxSlash != string::npos &amp;&amp; idxDot != string::npos) {
 fp.path = fullpath.substr(0, idxSlash + 1);
 fp.name = fullpath.substr(idxSlash + 1, idxDot - idxSlash - 1);
 fp.ext = fullpath.substr(idxDot);
 } else if (idxSlash == string::npos &amp;&amp; idxDot == string::npos) {
 fp.name = fullpath;
 } else if (/* only */ idxSlash == string::npos) {
 fp.name = fullpath.substr(0, idxDot);
 fp.ext = fullpath.substr(idxDot);
 } else { // only idxDot == string::npos
 fp.path = fullpath.substr(0, idxSlash + 1);
 fp.name = fullpath.substr(idxSlash + 1);
 }
 return fp;
}
</code></pre>

In MATLAB there's a nice function called fileparts that takes a full file path and parses it into path, filename (without extension), and extension as in the following example from the documentation:

<pre><code>file = 'H:\user4\matlab\classpath.txt';

[pathstr, name, ext] = fileparts(file)

&gt;&gt; pathstr = H:\user4\matlab

&gt;&gt; name = classpath

&gt;&gt; ext = .txt
</code></pre>

So I was wondering if there's an equivalent function in any standard C++ or C libraries that I could use? Or would I have to implement this myself? I realize it's fairly simple, but I figured if there's already something pre-made that would be preferable.

Thanks.

C++ equivalent of MATLAB's "fileparts" function

Windows

Linux

在MATLAB中，有一个名为filepart的很好的函数，它接受完整的文件路径，并将其解析为path、filename (不带扩展名)和扩展名，如文档中的以下示例所示：file = 'H:\user4\matlab\classpath.txt';[pathstr, name, ext] = fileparts(file...

问MATLAB的“filepart”函数的C++等价物
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