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feat: finish clap parser and resolver

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This commit is contained in:
yyc12345
2025-12-09 22:55:21 +08:00
parent d6662dbb53
commit a1d19cf09c
2 changed files with 64 additions and 6 deletions
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18
src/yycc/carton/clap/parser.cpp
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@@ -48,7 +48,8 @@ namespace yycc::carton::clap::parser {
/// @brief The state machine context prepared for parser.
struct ParserContext {
ParserContext(const APPLICATION::Application& app) : state(ParserState::Normal), opt_waiting(std::nullopt), app(app), values() {}
YYCC_DEFAULT_COPY_MOVE(ParserContext)
// We have a "const" reference member so we delete these.
YYCC_DELETE_COPY_MOVE(ParserContext)
ParserState state; ///< Current state.
std::optional<TYPES::Token> opt_waiting; ///< The token to the option waiting for associated value.
@@ -61,14 +62,15 @@ namespace yycc::carton::clap::parser {
#pragma region Core
/// @brief Core capture function.
static TYPES::ClapResult<std::map<TYPES::Token, std::optional<std::u8string>>> capture(const APPLICATION::Application& app) {
template<std::ranges::viewable_range V>
static TYPES::ClapResult<std::map<TYPES::Token, std::optional<std::u8string>>> capture(const APPLICATION::Application& app, V args) {
// Create context.
ParserContext ctx(app);
// Fetch commandline arguments
// And skip the first argument because it is the path to executable.
// Then start to execute until all arguments are consumed.
for (const auto& arg : ENV::get_args() | std::views::drop(1)) {
for (const auto& arg : args | std::views::drop(1)) {
// Fetch argument kind
ClassifiedArgument classified_arg(arg);
@@ -170,11 +172,17 @@ namespace yycc::carton::clap::parser {
#pragma region Parser Class
TYPES::ClapResult<Parser> Parser::from_user(const APPLICATION::Application& app, const std::vector<std::u8string_view>& args) {
return TYPES::ClapResult<Parser>();
auto rv = capture(app, args);
if (rv.has_value()) return Parser(std::move(rv.value()));
else return std::unexpected(rv.error());
}
TYPES::ClapResult<Parser> Parser::from_system(const APPLICATION::Application& app) {
return TYPES::ClapResult<Parser>();
auto rv = capture(app, ENV::get_args() | std::views::transform([](auto s) {
return std::u8string_view(s);
}));
if (rv.has_value()) return Parser(std::move(rv.value()));
else return std::unexpected(rv.error());
}
Parser::Parser(decltype(Parser::values)&& value) : values(std::move(values)) {}