A process for file specification decomposition is often required. To achieve decomposition goals we employ a structure and a method.
The structure is as follows.
[codesyntax lang=”cpp”]
struct filespecification_area
{
string Path;
string File;
};
[/codesyntax]
Establish a pointer to the structure by declaring the following.
[codesyntax lang=”cpp”]
filespecification_area fs;
[/codesyntax]
The associated method is listed below.
[codesyntax lang=”cpp”]
string makeDebFrame::retPathFn(string fileSpec)
{
int flo = fileSpec.find_last_of("/");
fs.Path = fileSpec.substr(0, flo + 1);
fs.File = fileSpec.substr((flo + 1), fileSpec.length());
}
[/codesyntax]
To invoke the method a call to the following code in required.
[codesyntax lang=”cpp”]
retPathFn(GetFileName(""));
[/codesyntax]
The GetFileName method is listed below.
[codesyntax lang=”cpp”]
string makeDebFrame::GetFileName(string fs)
{
wxFileDialog openFileDialog(this, _("Open Any file"), defPath, fno, fs, wxFD_OPEN | wxFD_FILE_MUST_EXIST);
if (openFileDialog.ShowModal() == wxID_CANCEL)
{
fileSpec = " ";
}
else
{
fileSpec = openFileDialog.GetPath();
}
return fileSpec;
}
[/codesyntax]
To support the above method the following items must be declared.
[codesyntax lang=”cpp”]
string defPath = "";
string fno = "";
[/codesyntax]
This utility will allow the programmer to decompose file specifications properly.
Mr. Arch Brooks, Software Engineer, Brooks Computing Systems, LLC authored this article.