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Extend the tester to compile sources

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This commit is contained in:
Eugen Wissner
2024-02-25 15:16:19 +01:00
parent ad29dbdc14
commit 03a72fc583
40 changed files with 3473 additions and 104 deletions
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9
shell/history.cpp
View File

@ -9,8 +9,8 @@ namespace elna
void editor_history::push(const std::string& entry)
{
commands.push_front(entry);
current_pointer = commands.cbegin();
commands.push_back(entry);
current_pointer = commands.cend();
}
void editor_history::clear()
@ -46,4 +46,9 @@ namespace elna
{
return this->commands.cend();
}
editor_history::const_iterator editor_history::current() const noexcept
{
return this->current_pointer;
}
}

84
shell/interactive.cpp
View File

@ -1,9 +1,10 @@
#include "elna/interactive.hpp"
#include <boost/algorithm/string/predicate.hpp>
#include <boost/process.hpp>
#include <termios.h>
#include <filesystem>
#include "elna/interactive.hpp"
namespace elna
{
static termios original_termios;
@ -39,9 +40,8 @@ namespace elna
break;
}
history.push(line.value().command_line());
auto tokens = lex(line.value().command_line());
if (!execute(tokens.assume_value()))
if (!execute(line.value().command_line()))
{
break;
}
@ -53,6 +53,7 @@ namespace elna
{
editor_state state;
std::string buffer;
std::string saved;
state.draw(std::back_inserter(buffer));
write(STDOUT_FILENO, buffer.data(), buffer.size());
@ -81,7 +82,7 @@ namespace elna
break;
case action::complete:
write(STDOUT_FILENO, "\x1b[1E\x1b[2K", 8);
state.insert(complete());
state.insert(complete(state.command_line(), state.relative_position()));
write(STDOUT_FILENO, "\x1b[1A", 4);
state.draw(std::back_inserter(buffer));
write(STDOUT_FILENO, buffer.data(), buffer.size());
@ -104,18 +105,26 @@ namespace elna
if (pressed_key == key(special_key::arrow_up, modifier::ctrl))
{
history_iterator = history.next();
if (history.current() == history.cend())
{
saved = state.command_line();
}
history_iterator = history.prev();
}
else if (pressed_key == key(special_key::arrow_down, modifier::ctrl))
{
history_iterator = history.prev();
history_iterator = history.next();
if (history_iterator == history.cend())
{
state.load(saved);
}
}
if (history_iterator != history.cend())
{
state.load(*history_iterator);
state.draw(std::back_inserter(buffer));
write(STDOUT_FILENO, buffer.data(), buffer.size());
}
state.draw(std::back_inserter(buffer));
write(STDOUT_FILENO, buffer.data(), buffer.size());
break;
}
}
@ -137,7 +146,7 @@ namespace elna
{
return key();
}
auto [number, last_char] = read_number<unsigned char>();
auto [number, last_char] = read_number<key::char_t>();
std::uint8_t modifiers{ 0 };
if (last_char == ';')
@ -185,35 +194,51 @@ namespace elna
return key();
}
bool execute(const std::vector<token>& tokens)
void print_exception(const std::exception& exception)
{
if (tokens.empty())
std::string message{ exception.what() };
message += "\r\n";
write(STDERR_FILENO, message.data(), message.size());
}
bool execute(const std::string& line)
{
if (line.empty())
{
return true;
}
std::string program = tokens.front().identifier();
if (program == "exit")
if (line == "exit")
{
return false;
}
else if (program == "cd")
else if (boost::starts_with(line, "cd "))
{
std::filesystem::current_path(tokens[1].identifier());
try
{
std::filesystem::current_path(line.substr(strlen("cd ")));
}
catch (const std::filesystem::filesystem_error& exception)
{
print_exception(exception);
}
return true;
}
std::vector<std::string> arguments;
for (auto argument = tokens.cbegin() + 1; argument != std::cend(tokens); ++argument)
{
arguments.push_back(argument->identifier());
}
launch(program, arguments);
launch(line);
return true;
}
void launch(const std::string& program, const std::vector<std::string>& arguments)
void launch(const std::string& program)
{
boost::process::system(boost::process::search_path(program), arguments);
try
{
boost::process::system(program);
}
catch (const boost::process::process_error& exception)
{
print_exception(exception);
}
enable_raw_mode();
}
bool enable_raw_mode()
@ -240,10 +265,17 @@ namespace elna
tcsetattr(STDIN_FILENO, TCSAFLUSH, &original_termios);
}
std::string complete()
std::string complete(const std::string& input, const std::size_t position)
{
std::filesystem::path program = boost::process::search_path("fzf");
if (program.empty())
{
return "";
}
boost::process::ipstream output;
boost::process::system("/usr/bin/fzf", "--height=10", "--layout=reverse",
boost::process::system(program,
"--height=10", "--layout=reverse", "-1", "--no-multi",
boost::process::std_out > output);
std::string selections;

124
shell/lexer.cpp
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@ -1,124 +0,0 @@
#include "elna/lexer.hpp"
namespace elna
{
source::source(const std::string& buffer)
: m_buffer(buffer)
{
}
source::const_iterator source::begin() const
{
return source::const_iterator(std::cbegin(m_buffer), Position());
}
source::const_iterator source::end() const
{
Position end_position{ 0, 0 };
return source::const_iterator(std::cend(m_buffer), end_position);
}
source::const_iterator::const_iterator(std::string::const_iterator buffer, const Position& start_position)
: m_buffer(buffer), m_position(start_position)
{
}
const Position& source::const_iterator::position() const noexcept
{
return this->m_position;
}
source::const_iterator::reference source::const_iterator::operator*() const noexcept
{
return *m_buffer;
}
source::const_iterator::pointer source::const_iterator::operator->() const noexcept
{
return m_buffer.base();
}
source::const_iterator& source::const_iterator::operator++()
{
if (*this->m_buffer == '\n')
{
this->m_position.column = 1;
++this->m_position.line;
}
else
{
++this->m_position.column;
}
std::advance(this->m_buffer, 1);
return *this;
}
source::const_iterator& source::const_iterator::operator++(int)
{
auto tmp = *this;
++(*this);
return *this;
}
bool source::const_iterator::operator==(const source::const_iterator& that) const noexcept
{
return this->m_buffer == that.m_buffer;
}
bool source::const_iterator::operator!=(const source::const_iterator& that) const noexcept
{
return !(*this == that);
}
token::token(const type of, source::const_iterator begin, source::const_iterator end)
: m_type(of), m_value(begin, end)
{
}
token::type token::of() const noexcept
{
return m_type;
}
const token::value& token::identifier() const noexcept
{
return m_value;
}
const Position& token::position() const noexcept
{
return m_position;
}
result<std::vector<token>> lex(const std::string& buffer)
{
std::vector<token> tokens;
source input{ buffer };
for (auto iterator = input.begin(); iterator != input.end();)
{
if (*iterator == ' ' || *iterator == '\n')
{
}
else if (std::isgraph(*iterator))
{
auto current_position = iterator;
do
{
++current_position;
}
while (current_position != input.end() && std::isgraph(*current_position));
token new_token{ token::type::word, iterator, current_position };
tokens.push_back(new_token);
iterator = current_position;
continue;
}
++iterator;
}
return tokens;
}
}

18
shell/result.cpp
View File

@ -2,24 +2,24 @@
namespace elna
{
CompileError::CompileError(char const *message, Position position) noexcept
compile_error::compile_error(const char *message, const source_position position) noexcept
{
this->message_ = message;
this->position_ = position;
this->message = message;
this->position = position;
}
char const *CompileError::message() const noexcept
char const *compile_error::what() const noexcept
{
return this->message_;
return this->message;
}
std::size_t CompileError::line() const noexcept
std::size_t compile_error::line() const noexcept
{
return this->position_.line;
return this->position.line;
}
std::size_t CompileError::column() const noexcept
std::size_t compile_error::column() const noexcept
{
return this->position_.column;
return this->position.column;
}
}

68
shell/state.cpp
View File

@ -1,3 +1,6 @@
#include <algorithm>
#include <boost/endian.hpp>
#include "elna/state.hpp"
namespace elna
@ -12,16 +15,16 @@ namespace elna
}
key::key()
: store(static_cast<unsigned char>(0x1b))
: store(0x1bu)
{
}
key::key(const unsigned char c, const std::uint8_t modifiers)
key::key(const char_t c, const std::uint8_t modifiers)
: store(c), modifiers(modifiers == 0 ? 0 : modifiers - 1)
{
}
key::key(const unsigned char c, const modifier modifiers)
key::key(const char_t c, const modifier modifiers)
: store(c), modifiers(static_cast<uint8_t>(modifiers))
{
}
@ -36,9 +39,9 @@ namespace elna
{
}
unsigned char key::character() const
key::char_t key::character() const
{
return std::get<unsigned char>(this->store);
return std::get<char_t>(this->store);
}
special_key key::control() const
@ -56,10 +59,10 @@ namespace elna
return this->modifiers == static_cast<std::uint8_t>(modifiers);
}
bool key::operator==(const unsigned char c) const
bool key::operator==(const char_t c) const
{
return std::holds_alternative<unsigned char>(this->store)
&& std::get<unsigned char>(this->store) == c;
return std::holds_alternative<char_t>(this->store)
&& std::get<char_t>(this->store) == c;
}
bool key::operator==(const special_key control) const
@ -73,7 +76,7 @@ namespace elna
return this->store == that.store;
}
bool key::operator!=(const unsigned char c) const
bool key::operator!=(const char_t c) const
{
return !(*this == c);
}
@ -90,7 +93,7 @@ namespace elna
bool key::is_character() const noexcept
{
return std::holds_alternative<unsigned char>(this->store);
return std::holds_alternative<char_t>(this->store);
}
bool key::is_control() const noexcept
@ -131,6 +134,7 @@ namespace elna
void editor_state::load(const std::string& text)
{
this->input = text;
this->position = this->input.size() + 1;
}
const std::string& editor_state::command_line() const noexcept
@ -143,9 +147,36 @@ namespace elna
return this->prompt.size() + this->position;
}
std::size_t editor_state::relative_position() const noexcept
{
return this->position;
}
void editor_state::insert(const std::string& text)
{
this->input.insert(std::end(this->input), std::cbegin(text), std::cend(text));
this->input.insert(this->position - 1, text);
this->position += text.size();
}
void editor_state::insert(const key::char_t text)
{
if (text == 0u)
{
this->input.insert(this->position - 1, '\0', 1);
++this->position;
return;
}
key::char_t buffer = boost::endian::native_to_big<key::char_t>(text);
const char *begin = reinterpret_cast<char *>(&buffer);
const char *end = begin + sizeof(key::char_t);
const char *significant = std::find_if(begin, end,
[](const char byte) {
return byte != 0;
});
this->input.insert(this->position - 1, significant, end - significant);
this->position += end - significant;
}
action editor_state::process_keypress(const key& press)
@ -202,12 +233,21 @@ namespace elna
this->input.erase(this->position - 1, 1);
}
return action::redraw;
case 9: // Tab.
return action::complete;
case '\r':
return action::finalize;
default:
++this->position;
this->input.push_back(press.character());
return action::write;
if (this->position - 1 < input.size())
{
insert(press.character());
return action::redraw;
}
else
{
insert(press.character());
return action::write;
}
}
}
}