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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmConfigure.h" // IWYU pragma: keep
#include "cmCMakePath.h"
#include <string>
#if defined(_WIN32)
# include <cstdlib>
#endif
#include <cm/filesystem>
#include <cm/string_view>
#if defined(_WIN32)
# include "cmStringAlgorithms.h"
#endif
cmCMakePath& cmCMakePath::ReplaceWideExtension(cm::string_view extension)
{
auto file = this->Path.filename().string();
if (!file.empty() && file != "." && file != "..") {
auto pos = file.find('.', file[0] == '.' ? 1 : 0);
if (pos != std::string::npos) {
file.erase(pos);
}
}
if (!extension.empty()) {
if (extension[0] != '.') {
file += '.';
}
file.append(std::string(extension));
}
this->Path.replace_filename(file);
return *this;
}
cmCMakePath cmCMakePath::GetWideExtension() const
{
auto file = this->Path.filename().string();
if (file.empty() || file == "." || file == "..") {
return cmCMakePath{};
}
auto pos = file.find('.', file[0] == '.' ? 1 : 0);
if (pos != std::string::npos) {
return cm::string_view(file.data() + pos, file.length() - pos);
}
return cmCMakePath{};
}
cmCMakePath cmCMakePath::GetNarrowStem() const
{
auto stem = this->Path.stem().string();
if (!stem.empty()) {
auto pos = stem.find('.', stem[0] == '.' ? 1 : 0);
if (pos != std::string::npos) {
return stem.substr(0, pos);
}
}
return stem;
}
cmCMakePath cmCMakePath::Absolute(const cm::filesystem::path& base) const
{
if (this->Path.is_relative()) {
auto path = base;
path /= this->Path;
// filesystem::path::operator/= use preferred_separator ('\' on Windows)
// so converts back to '/'
return path.generic_string();
}
return *this;
}
bool cmCMakePath::IsPrefix(const cmCMakePath& path) const
{
auto prefix_it = this->Path.begin();
auto prefix_end = this->Path.end();
auto path_it = path.Path.begin();
auto path_end = path.Path.end();
while (prefix_it != prefix_end && path_it != path_end &&
*prefix_it == *path_it) {
++prefix_it;
++path_it;
}
return (prefix_it == prefix_end) ||
(prefix_it->empty() && path_it != path_end);
}
std::string cmCMakePath::FormatPath(std::string path, format fmt)
{
#if defined(_WIN32)
if (fmt == auto_format || fmt == native_format) {
auto prefix = path.substr(0, 4);
for (auto& c : prefix) {
if (c == '\\') {
c = '/';
}
}
// remove Windows long filename marker
if (prefix == "//?/"_s) {
path.erase(0, 4);
}
if (cmHasPrefix(path, "UNC/"_s) || cmHasPrefix(path, "UNC\\"_s)) {
path.erase(0, 2);
path[0] = '/';
}
}
#else
static_cast<void>(fmt);
#endif
return path;
}
void cmCMakePath::GetNativePath(std::string& path) const
{
cm::filesystem::path tmp(this->Path);
tmp.make_preferred();
path = tmp.string();
}
void cmCMakePath::GetNativePath(std::wstring& path) const
{
cm::filesystem::path tmp(this->Path);
tmp.make_preferred();
path = tmp.wstring();
#if defined(_WIN32)
// Windows long filename
static std::wstring UNC(L"\\\\?\\UNC");
static std::wstring PREFIX(L"\\\\?\\");
if (this->IsAbsolute() && path.length() > _MAX_PATH - 12) {
if (this->HasRootName() && path[0] == L'\\') {
path = UNC + path.substr(1);
} else {
path = PREFIX + path;
}
}
#endif
}
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