78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include "elna/source/driver.h"
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namespace elna
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{
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namespace source
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{
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position make_position(const yy::location& location)
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{
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return position{
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static_cast<std::size_t>(location.begin.line),
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static_cast<std::size_t>(location.begin.column)
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};
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}
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syntax_error::syntax_error(const std::string& message,
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const char *input_file, const yy::location& location)
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: error(input_file, make_position(location)), message(message)
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{
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}
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std::string syntax_error::what() const
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{
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return message;
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}
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driver::driver(const char *input_file)
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: input_file(input_file)
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{
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}
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void driver::error(const yy::location& loc, const std::string& message)
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{
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m_errors.emplace_back(std::make_unique<elna::source::syntax_error>(message, input_file, loc));
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}
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const std::list<std::unique_ptr<struct error>>& driver::errors() const noexcept
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{
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return m_errors;
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}
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std::optional<char> escape_char(char escape)
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{
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switch (escape)
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{
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case 'n':
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return std::make_optional<char>('\n');
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case 'a':
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return std::make_optional<char>('\a');
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case 'b':
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return std::make_optional<char>('\b');
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case 't':
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return std::make_optional<char>('\t');
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case 'f':
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return std::make_optional<char>('\f');
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case 'r':
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return std::make_optional<char>('\r');
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case 'v':
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return std::make_optional<char>('\v');
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case '\\':
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return std::make_optional<char>('\\');
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case '\'':
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return std::make_optional<char>('\'');
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case '"':
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return std::make_optional<char>('"');
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case '?':
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return std::make_optional<char>('\?');
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case '0':
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return std::make_optional<char>('\0');
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default:
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return std::nullopt;
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}
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}
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}
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}
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