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