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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 "cmArgumentParser.h"
#include <algorithm>
#include "cmArgumentParserTypes.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmStringAlgorithms.h"
namespace ArgumentParser {
auto KeywordActionMap::Emplace(cm::string_view name, KeywordAction action)
-> std::pair<iterator, bool>
{
auto const it =
std::lower_bound(this->begin(), this->end(), name,
[](value_type const& elem, cm::string_view const& k) {
return elem.first < k;
});
return (it != this->end() && it->first == name)
? std::make_pair(it, false)
: std::make_pair(this->emplace(it, name, std::move(action)), true);
}
auto KeywordActionMap::Find(cm::string_view name) const -> const_iterator
{
auto const it =
std::lower_bound(this->begin(), this->end(), name,
[](value_type const& elem, cm::string_view const& k) {
return elem.first < k;
});
return (it != this->end() && it->first == name) ? it : this->end();
}
void Instance::Bind(std::function<Continue(cm::string_view)> f)
{
this->KeywordValueFunc = std::move(f);
this->ExpectValue = true;
}
void Instance::Bind(bool& val)
{
val = true;
this->KeywordValueFunc = nullptr;
this->ExpectValue = false;
}
void Instance::Bind(std::string& val)
{
this->KeywordValueFunc = [&val](cm::string_view arg) -> Continue {
val = std::string(arg);
return Continue::No;
};
this->ExpectValue = true;
}
void Instance::Bind(Maybe<std::string>& val)
{
this->KeywordValueFunc = [&val](cm::string_view arg) -> Continue {
static_cast<std::string&>(val) = std::string(arg);
return Continue::No;
};
this->ExpectValue = false;
}
void Instance::Bind(MaybeEmpty<std::vector<std::string>>& val)
{
this->KeywordValueFunc = [&val](cm::string_view arg) -> Continue {
val.emplace_back(arg);
return Continue::Yes;
};
this->ExpectValue = false;
}
void Instance::Bind(NonEmpty<std::vector<std::string>>& val)
{
this->KeywordValueFunc = [&val](cm::string_view arg) -> Continue {
val.emplace_back(arg);
return Continue::Yes;
};
this->ExpectValue = true;
}
void Instance::Bind(std::vector<std::vector<std::string>>& multiVal)
{
multiVal.emplace_back();
std::vector<std::string>& val = multiVal.back();
this->KeywordValueFunc = [&val](cm::string_view arg) -> Continue {
val.emplace_back(arg);
return Continue::Yes;
};
this->ExpectValue = false;
}
void Instance::Consume(cm::string_view arg)
{
auto const it = this->Bindings.Keywords.Find(arg);
if (it != this->Bindings.Keywords.end()) {
this->FinishKeyword();
this->Keyword = it->first;
if (this->Bindings.ParsedKeyword) {
this->Bindings.ParsedKeyword(*this, it->first);
}
it->second(*this);
return;
}
if (this->KeywordValueFunc) {
switch (this->KeywordValueFunc(arg)) {
case Continue::Yes:
break;
case Continue::No:
this->KeywordValueFunc = nullptr;
break;
}
this->ExpectValue = false;
return;
}
if (this->UnparsedArguments != nullptr) {
this->UnparsedArguments->emplace_back(arg);
}
}
void Instance::FinishKeyword()
{
if (this->Keyword.empty()) {
return;
}
if (this->ExpectValue) {
if (this->ParseResults != nullptr) {
this->ParseResults->AddKeywordError(this->Keyword,
" missing required value\n");
}
if (this->Bindings.KeywordMissingValue) {
this->Bindings.KeywordMissingValue(*this, this->Keyword);
}
}
}
bool ParseResult::MaybeReportError(cmMakefile& mf) const
{
if (*this) {
return false;
}
std::string e;
for (auto const& ke : this->KeywordErrors) {
e = cmStrCat(e, "Error after keyword \"", ke.first, "\":\n", ke.second);
}
mf.IssueMessage(MessageType::FATAL_ERROR, e);
return true;
}
} // namespace ArgumentParser
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