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Common: Add functions to decompose a Path into its components

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This commit is contained in:
Thierry Crozat 2022-04-21 18:59:13 +01:00 committed by Eugene Sandulenko
parent cb8718dcdc
commit f2849282a6
2 changed files with 42 additions and 2 deletions
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28
common/path.cpp
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@ -32,7 +32,10 @@ Path::Path(const char *str, char separator) {
}
Path::Path(const String &str, char separator) {
set(str.c_str(), separator);
if (separator == DIR_SEPARATOR)
_str = str;
else
set(str.c_str(), separator);
}
String Path::toString(char separator) const {
@ -46,6 +49,24 @@ String Path::toString(char separator) const {
return res;
}
Path Path::getParent() const {
if (_str.size() < 2)
return Path();
size_t separatorPos = _str.findLastOf(DIR_SEPARATOR, _str.size() - 2);
if (separatorPos == Common::String::npos)
return Path();
return Path(_str.substr(0, separatorPos + 1), DIR_SEPARATOR);
}
Path Path::getLastComponent() const {
if (_str.size() < 2)
return *this;
size_t separatorPos = _str.findLastOf(DIR_SEPARATOR, _str.size() - 2);
if (separatorPos == Common::String::npos)
return *this;
return Path(_str.substr(separatorPos + 1), DIR_SEPARATOR);
}
bool Path::operator==(const Path &x) const {
return _str == x.rawString();
}
@ -84,7 +105,10 @@ Path &Path::appendInPlace(const Path &x) {
}
Path &Path::appendInPlace(const String &str, char separator) {
appendInPlace(str.c_str(), separator);
if (separator == DIR_SEPARATOR)
_str += str;
else
appendInPlace(str.c_str(), separator);
return *this;
}

16
common/path.h
View File

@ -91,6 +91,22 @@ public:
*/
String toString(char separator = '/') const;
/**
* Returns the Path for the parent directory of this path.
*
* Appending the getLastComponent() of a path to getParent() returns a path
* identical to the original path.
*/
Path getParent() const;
/**
* Returns the last component of this path.
*
* Appending the getLastComponent() of a path to getParent() returns a path
* identical to the original path.
*/
Path getLastComponent() const;
/** Check whether this path is identical to path @p x. */
bool operator==(const Path &x) const;