Common C++ classes and routines used by my applications such as argument parser, IO and conversion utilities
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#define CPP_UTILITIES_PATHHELPER_STRING_VIEW
#include "./path.h"
#include <cstdlib>
#include <fstream>
#include <sstream>
#include <string>
using namespace std;
namespace CppUtilities {
/*!
* \brief Returns the file name and extension of the specified \a path string.
*/
std::string fileName(const std::string &path)
{
return std::string(fileName(std::string_view(path)));
}
/*!
* \brief Returns the directory of the specified \a path string (including trailing slash).
*/
std::string directory(const std::string &path)
{
return std::string(directory(std::string_view(path)));
}
/*!
* \brief Returns the file name and extension of the specified \a path string.
*/
std::string_view fileName(std::string_view path)
{
std::size_t lastSlash = path.rfind('/');
std::size_t lastBackSlash = path.rfind('\\');
std::size_t lastSeparator;
if (lastSlash == std::string::npos && lastBackSlash == std::string::npos) {
return path;
} else if (lastSlash == std::string::npos) {
lastSeparator = lastBackSlash;
} else if (lastBackSlash == std::string::npos) {
lastSeparator = lastSlash;
} else {
lastSeparator = lastSlash > lastBackSlash ? lastSlash : lastBackSlash;
}
return path.substr(lastSeparator + 1);
}
/*!
* \brief Returns the directory of the specified \a path string (including trailing slash).
*/
std::string_view directory(std::string_view path)
{
std::size_t lastSlash = path.rfind('/');
std::size_t lastBackSlash = path.rfind('\\');
std::size_t lastSeparator;
if (lastSlash == std::string::npos && lastBackSlash == std::string::npos) {
return std::string_view();
} else if (lastSlash == std::string::npos) {
lastSeparator = lastBackSlash;
} else if (lastBackSlash == std::string::npos) {
lastSeparator = lastSlash;
} else {
lastSeparator = lastSlash > lastBackSlash ? lastSlash : lastBackSlash;
}
return path.substr(0, lastSeparator + 1);
}
/*!
* \brief Removes invalid characters from the specified \a fileName.
*
* The characters <, >, ?, !, *, |, /, :, \ and new lines are considered as invalid.
*/
void removeInvalidChars(std::string &fileName)
{
size_t startPos = 0;
static const char invalidPathChars[] = { '\"', '<', '>', '?', '!', '*', '|', '/', ':', '\\', '\n' };
for (const char *i = invalidPathChars, *end = invalidPathChars + sizeof(invalidPathChars); i != end; ++i) {
startPos = fileName.find(*i);
while (startPos != string::npos) {
fileName.replace(startPos, 1, string());
startPos = fileName.find(*i, startPos);
}
}
}
} // namespace CppUtilities