(C++) SimplifyPath

 

SimplifyPath is a std::string and file I/O code snippet to remove a filename's path.

 

• Download the Qt Creator projct 'CppSimplifyPath' (zip)

 

 

 

 

 

Technical facts

 

Application type(s)

• Desktop application

Operating system(s) or programming environment(s)

• Lubuntu 12.04 (precise)

IDE(s):

• Qt Creator 2.3.0

Project type:

• Console application

C++ standard:

• C++98

Compiler(s):

• G++ 4.6.3

Libraries used:

• Boost: version 1.46.1
• STL: GNU ISO C++ Library, version 4.6.3

 

 

 

 

 

Qt project file: CppSimplifyPath.pro

 

---

#------------------------------------------------- # # Project created by QtCreator 2012-05-30T10:52:19 # #------------------------------------------------- QT       += core QT       -= gui TARGET = CppSimplifyPath CONFIG   += console CONFIG   -= app_bundle LIBS += -lboost_regex TEMPLATE = app SOURCES += main.cpp

 

 

 

 

 

main.cpp

 

---

#include <boost/regex.hpp> ///Simplify a path ///For example, /// /home/richel/Projects/Tools/ToolTestProFile/../../Classes/CppQtAboutDialog/qtaboutdialog.ui ///is converted to /// /home/richel/Projects/Classes/CppQtAboutDialog/qtaboutdialog.ui //From http://www.richelbilderbeek.nl/CppSimplifyPath.htm const std::string SimplifyPath(const std::string& s) {   std::string t = s;   while (1)   {     const std::string new_t = boost::regex_replace(t,boost::regex("/\\w*/../"),"/");     if (t == new_t) return t;     t = new_t;   } } #include <cassert> int main() {   assert(SimplifyPath("/home/richel/Projects/Tools/ToolTestProFile/../../Classes/CppQtAboutDialog/qtaboutdialog.ui")     == "/home/richel/Projects/Classes/CppQtAboutDialog/qtaboutdialog.ui");   assert(SimplifyPath("/home/richel/Projects/Tools/../Classes/CppQtAboutDialog/qtaboutdialog.ui")     == "/home/richel/Projects/Classes/CppQtAboutDialog/qtaboutdialog.ui");   assert(SimplifyPath("/home/richel/Projects/Classes/CppQtAboutDialog/qtaboutdialog.ui")     == "/home/richel/Projects/Classes/CppQtAboutDialog/qtaboutdialog.ui"); }