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97 lines
2.7 KiB
97 lines
2.7 KiB
/* 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 "cmArgumentParser.h"
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#include <algorithm>
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namespace ArgumentParser {
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auto ActionMap::Emplace(cm::string_view name, Action action)
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-> std::pair<iterator, bool>
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{
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auto const it =
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std::lower_bound(this->begin(), this->end(), name,
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[](value_type const& elem, cm::string_view const& k) {
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return elem.first < k;
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});
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return (it != this->end() && it->first == name)
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? std::make_pair(it, false)
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: std::make_pair(this->emplace(it, name, std::move(action)), true);
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}
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auto ActionMap::Find(cm::string_view name) const -> const_iterator
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{
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auto const it =
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std::lower_bound(this->begin(), this->end(), name,
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[](value_type const& elem, cm::string_view const& k) {
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return elem.first < k;
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});
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return (it != this->end() && it->first == name) ? it : this->end();
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}
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void Instance::Bind(bool& val)
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{
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val = true;
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this->CurrentString = nullptr;
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this->CurrentList = nullptr;
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this->ExpectValue = false;
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}
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void Instance::Bind(std::string& val)
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{
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this->CurrentString = &val;
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this->CurrentList = nullptr;
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this->ExpectValue = true;
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}
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void Instance::Bind(StringList& val)
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{
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this->CurrentString = nullptr;
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this->CurrentList = &val;
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this->ExpectValue = true;
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}
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void Instance::Bind(MultiStringList& val)
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{
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this->CurrentString = nullptr;
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this->CurrentList = (static_cast<void>(val.emplace_back()), &val.back());
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this->ExpectValue = false;
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}
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void Instance::Consume(cm::string_view arg, void* result,
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std::vector<std::string>* unparsedArguments,
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std::vector<std::string>* keywordsMissingValue,
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std::vector<std::string>* parsedKeywords)
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{
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auto const it = this->Bindings.Find(arg);
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if (it != this->Bindings.end()) {
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if (parsedKeywords != nullptr) {
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parsedKeywords->emplace_back(arg);
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}
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it->second(*this, result);
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if (this->ExpectValue && keywordsMissingValue != nullptr) {
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keywordsMissingValue->emplace_back(arg);
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}
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return;
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}
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if (this->CurrentString != nullptr) {
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this->CurrentString->assign(std::string(arg));
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this->CurrentString = nullptr;
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this->CurrentList = nullptr;
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} else if (this->CurrentList != nullptr) {
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this->CurrentList->emplace_back(arg);
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} else if (unparsedArguments != nullptr) {
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unparsedArguments->emplace_back(arg);
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}
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if (this->ExpectValue) {
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if (keywordsMissingValue != nullptr) {
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keywordsMissingValue->pop_back();
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}
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this->ExpectValue = false;
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}
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}
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} // namespace ArgumentParser
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