2020-11-17 02:31:51 +01:00
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#include "lang/lexer.hpp"
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2020-11-10 15:26:38 +01:00
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2021-01-05 14:42:08 +01:00
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#include <algorithm>
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2020-11-10 15:26:38 +01:00
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#include <functional>
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2020-12-18 21:44:13 +01:00
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#include <optional>
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2021-01-05 14:42:08 +01:00
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#include <vector>
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2020-11-10 15:26:38 +01:00
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namespace hex::lang {
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Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
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#define TOKEN(type, value) Token::Type::type, Token::type::value, lineNumber
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#define VALUE_TOKEN(type, value) Token::Type::type, value, lineNumber
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2020-11-10 15:26:38 +01:00
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Lexer::Lexer() { }
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std::string matchTillInvalid(const char* characters, std::function<bool(char)> predicate) {
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std::string ret;
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while (*characters != 0x00) {
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ret += *characters;
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characters++;
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if (!predicate(*characters))
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break;
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}
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return ret;
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}
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2021-01-05 14:42:08 +01:00
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size_t getIntegerLiteralLength(std::string_view string) {
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return string.find_first_not_of("0123456789ABCDEFabcdef.xUL");
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}
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std::optional<Token::IntegerLiteral> parseIntegerLiteral(std::string_view string) {
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Token::ValueType type = Token::ValueType::Any;
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Token::IntegerLiteral result;
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2020-11-11 10:47:02 +01:00
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u8 base;
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2020-11-10 15:26:38 +01:00
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2021-01-05 14:42:08 +01:00
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auto endPos = getIntegerLiteralLength(string);
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std::string_view numberData = string.substr(0, endPos);
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if (numberData.ends_with('U')) {
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type = Token::ValueType::Unsigned32Bit;
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numberData.remove_suffix(1);
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} else if (numberData.ends_with("UL")) {
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type = Token::ValueType::Unsigned64Bit;
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numberData.remove_suffix(2);
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} else if (numberData.ends_with("ULL")) {
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type = Token::ValueType::Unsigned128Bit;
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numberData.remove_suffix(3);
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} else if (numberData.ends_with("L")) {
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type = Token::ValueType::Signed64Bit;
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numberData.remove_suffix(1);
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} else if (numberData.ends_with("LL")) {
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type = Token::ValueType::Signed128Bit;
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numberData.remove_suffix(2);
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2021-01-07 15:37:37 +01:00
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} else if (!numberData.starts_with("0x") && !numberData.starts_with("0b")) {
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if (numberData.ends_with('F')) {
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type = Token::ValueType::Float;
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numberData.remove_suffix(1);
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} else if (numberData.ends_with('D')) {
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type = Token::ValueType::Double;
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numberData.remove_suffix(1);
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}
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2021-01-05 14:42:08 +01:00
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}
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2020-11-10 15:26:38 +01:00
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2021-01-05 14:42:08 +01:00
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if (numberData.starts_with("0x")) {
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numberData = numberData.substr(2);
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2020-11-10 15:26:38 +01:00
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base = 16;
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2021-01-05 14:42:08 +01:00
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if (Token::isFloatingPoint(type))
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return { };
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2020-11-10 15:26:38 +01:00
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if (numberData.find_first_not_of("0123456789ABCDEFabcdef") != std::string_view::npos)
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return { };
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2021-01-05 14:42:08 +01:00
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} else if (numberData.starts_with("0b")) {
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numberData = numberData.substr(2);
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2020-11-10 15:26:38 +01:00
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base = 2;
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2021-01-05 14:42:08 +01:00
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if (Token::isFloatingPoint(type))
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return { };
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2020-11-10 15:26:38 +01:00
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if (numberData.find_first_not_of("01") != std::string_view::npos)
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return { };
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2021-01-05 14:42:08 +01:00
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} else if (numberData.find('.') != std::string_view::npos || Token::isFloatingPoint(type)) {
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base = 10;
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if (type == Token::ValueType::Any)
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type = Token::ValueType::Double;
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if (std::count(numberData.begin(), numberData.end(), '.') > 1 || numberData.find_first_not_of("0123456789.") != std::string_view::npos)
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return { };
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if (numberData.ends_with('.'))
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return { };
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} else if (isdigit(numberData[0])) {
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2020-11-10 15:26:38 +01:00
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base = 10;
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if (numberData.find_first_not_of("0123456789") != std::string_view::npos)
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return { };
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} else return { };
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2021-01-05 14:42:08 +01:00
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if (type == Token::ValueType::Any)
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type = Token::ValueType::Signed32Bit;
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2020-11-10 15:26:38 +01:00
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if (numberData.length() == 0)
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return { };
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2021-01-05 14:42:08 +01:00
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if (Token::isUnsigned(type) || Token::isSigned(type)) {
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u128 integer = 0;
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for (const char& c : numberData) {
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2020-11-10 15:26:38 +01:00
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integer *= base;
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2021-01-05 14:42:08 +01:00
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if (isdigit(c))
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integer += (c - '0');
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else if (c >= 'A' && c <= 'F')
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integer += 10 + (c - 'A');
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else if (c >= 'a' && c <= 'f')
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integer += 10 + (c - 'a');
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else return { };
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}
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switch (type) {
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case Token::ValueType::Unsigned32Bit: return {{ type, u32(integer) }};
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case Token::ValueType::Signed32Bit: return {{ type, s32(integer) }};
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case Token::ValueType::Unsigned64Bit: return {{ type, u64(integer) }};
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case Token::ValueType::Signed64Bit: return {{ type, s64(integer) }};
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case Token::ValueType::Unsigned128Bit: return {{ type, u128(integer) }};
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case Token::ValueType::Signed128Bit: return {{ type, s128(integer) }};
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default: return { };
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}
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} else if (Token::isFloatingPoint(type)) {
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double floatingPoint = strtod(numberData.data(), nullptr);
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switch (type) {
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case Token::ValueType::Float: return {{ type, float(floatingPoint) }};
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case Token::ValueType::Double: return {{ type, double(floatingPoint) }};
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default: return { };
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}
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2020-11-10 15:26:38 +01:00
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}
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2021-01-05 14:42:08 +01:00
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return { };
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2020-11-10 15:26:38 +01:00
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}
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2021-01-09 21:45:48 +01:00
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std::optional<std::pair<char, size_t>> getCharacter(std::string_view string) {
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if (string.length() < 1)
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return { };
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// Escape sequences
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if (string[0] == '\\') {
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if (string.length() < 2)
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return { };
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// Handle simple escape sequences
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switch (string[1]) {
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case 'a': return {{ '\a', 2 }};
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case 'b': return {{ '\b', 2 }};
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case 'f': return {{ '\f', 2 }};
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case 'n': return {{ '\n', 2 }};
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case 'r': return {{ '\r', 2 }};
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case 't': return {{ '\t', 2 }};
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case 'v': return {{ '\v', 2 }};
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case '\\': return {{ '\\', 2 }};
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case '\'': return {{ '\'', 2 }};
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case '\"': return {{ '\"', 2 }};
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}
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// Hexadecimal number
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if (string[1] == 'x') {
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if (string.length() != 4)
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return { };
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if (!isxdigit(string[2]) || !isxdigit(string[3]))
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return { };
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return {{ std::strtoul(&string[2], nullptr, 16), 4 }};
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}
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// Octal number
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if (string[1] == 'o') {
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if (string.length() != 5)
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return { };
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if (string[2] < '0' || string[2] > '7' || string[3] < '0' || string[3] > '7' || string[4] < '0' || string[4] > '7')
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return { };
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return {{ std::strtoul(&string[2], nullptr, 8), 5 }};
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}
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return { };
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} else return {{ string[0], 1 }};
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}
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std::optional<std::pair<std::string, size_t>> getStringLiteral(std::string_view string) {
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if (!string.starts_with('\"'))
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return { };
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size_t size = 1;
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std::string result;
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while (string[size] != '\"') {
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auto character = getCharacter(string.substr(size));
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if (!character.has_value())
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return { };
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auto &[c, charSize] = character.value();
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result += c;
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size += charSize;
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if (size >= string.length())
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return { };
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}
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return {{ result, size + 1 }};
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}
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std::optional<std::pair<char, size_t>> getCharacterLiteral(std::string_view string) {
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if (string.empty())
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return { };
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if (!string[0] != '\'')
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return { };
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auto character = getCharacter(string.substr(1));
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if (!character.has_value())
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return { };
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auto &[c, charSize] = character.value();
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if (string.length() >= charSize || string[charSize] != '\'')
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return { };
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return {{ c, charSize + 2 }};
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}
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2020-12-22 18:10:01 +01:00
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std::optional<std::vector<Token>> Lexer::lex(const std::string& code) {
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2020-11-10 15:26:38 +01:00
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std::vector<Token> tokens;
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u32 offset = 0;
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2020-11-27 21:20:23 +01:00
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u32 lineNumber = 1;
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Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
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try {
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2020-11-14 14:40:21 +01:00
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Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
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while (offset < code.length()) {
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const char& c = code[offset];
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2020-11-13 14:35:52 +01:00
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Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
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if (c == 0x00)
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break;
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2020-11-13 14:35:52 +01:00
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Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
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if (std::isblank(c) || std::isspace(c)) {
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if (code[offset] == '\n') lineNumber++;
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offset += 1;
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} else if (c == ';') {
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tokens.emplace_back(TOKEN(Separator, EndOfExpression));
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offset += 1;
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} else if (c == '(') {
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tokens.emplace_back(TOKEN(Separator, RoundBracketOpen));
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offset += 1;
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} else if (c == ')') {
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tokens.emplace_back(TOKEN(Separator, RoundBracketClose));
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offset += 1;
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} else if (c == '{') {
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tokens.emplace_back(TOKEN(Separator, CurlyBracketOpen));
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offset += 1;
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} else if (c == '}') {
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tokens.emplace_back(TOKEN(Separator, CurlyBracketClose));
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offset += 1;
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} else if (c == '[') {
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tokens.emplace_back(TOKEN(Separator, SquareBracketOpen));
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offset += 1;
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} else if (c == ']') {
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tokens.emplace_back(TOKEN(Separator, SquareBracketClose));
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offset += 1;
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} else if (c == ',') {
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tokens.emplace_back(TOKEN(Separator, Comma));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '.') {
|
|
|
|
tokens.emplace_back(TOKEN(Separator, Dot));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '@') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, AtDeclaration));
|
|
|
|
offset += 1;
|
2021-01-07 00:02:51 +01:00
|
|
|
} else if (code.substr(offset, 2) == "==") {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolEquals));
|
|
|
|
offset += 2;
|
|
|
|
} else if (code.substr(offset, 2) == "!=") {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolNotEquals));
|
|
|
|
offset += 2;
|
|
|
|
} else if (code.substr(offset, 2) == ">=") {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolGreaterThanOrEquals));
|
|
|
|
offset += 2;
|
|
|
|
} else if (code.substr(offset, 2) == "<=") {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolLessThanOrEquals));
|
|
|
|
offset += 2;
|
|
|
|
} else if (code.substr(offset, 2) == "&&") {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolAnd));
|
|
|
|
offset += 2;
|
|
|
|
} else if (code.substr(offset, 2) == "||") {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolOr));
|
|
|
|
offset += 2;
|
|
|
|
} else if (code.substr(offset, 2) == "^^") {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolXor));
|
|
|
|
offset += 2;
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
} else if (c == '=') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, Assignment));
|
|
|
|
offset += 1;
|
2021-01-05 14:42:08 +01:00
|
|
|
} else if (code.substr(offset, 2) == "::") {
|
|
|
|
tokens.emplace_back(TOKEN(Separator, ScopeResolution));
|
|
|
|
offset += 2;
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
} else if (c == ':') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, Inherit));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '+') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, Plus));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '-') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, Minus));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '*') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, Star));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '/') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, Slash));
|
|
|
|
offset += 1;
|
2021-01-05 14:42:08 +01:00
|
|
|
} else if (code.substr(offset, 2) == "<<") {
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
tokens.emplace_back(TOKEN(Operator, ShiftLeft));
|
2020-11-13 14:35:52 +01:00
|
|
|
offset += 2;
|
2021-01-05 14:42:08 +01:00
|
|
|
} else if (code.substr(offset, 2) == ">>") {
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
tokens.emplace_back(TOKEN(Operator, ShiftRight));
|
|
|
|
offset += 2;
|
2021-01-07 00:02:51 +01:00
|
|
|
} else if (c == '>') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolGreaterThan));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '<') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolLessThan));
|
|
|
|
offset += 1;
|
2021-01-07 00:41:06 +01:00
|
|
|
} else if (c == '!') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BoolNot));
|
|
|
|
offset += 1;
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
} else if (c == '|') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BitOr));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '&') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BitAnd));
|
|
|
|
offset += 1;
|
|
|
|
} else if (c == '^') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BitXor));
|
|
|
|
offset += 1;
|
2021-01-07 00:41:06 +01:00
|
|
|
} else if (c == '~') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, BitNot));
|
|
|
|
offset += 1;
|
2021-01-07 01:19:54 +01:00
|
|
|
} else if (c == '?') {
|
|
|
|
tokens.emplace_back(TOKEN(Operator, TernaryConditional));
|
|
|
|
offset += 1;
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
} else if (c == '\'') {
|
2021-01-09 21:45:48 +01:00
|
|
|
auto character = getCharacterLiteral(code.substr(offset));
|
2020-11-13 14:35:52 +01:00
|
|
|
|
2021-01-09 21:45:48 +01:00
|
|
|
if (!character.has_value())
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
throwLexerError("invalid character literal", lineNumber);
|
2020-11-10 15:26:38 +01:00
|
|
|
|
2021-01-09 21:45:48 +01:00
|
|
|
auto [c, charSize] = character.value();
|
2020-11-27 14:18:28 +01:00
|
|
|
|
2021-01-09 21:45:48 +01:00
|
|
|
tokens.emplace_back(VALUE_TOKEN(Integer, Token::IntegerLiteral(Token::ValueType::Character, c) ));
|
|
|
|
offset += charSize;
|
|
|
|
} else if (c == '\"') {
|
|
|
|
auto string = getStringLiteral(code.substr(offset));
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
|
2021-01-09 21:45:48 +01:00
|
|
|
if (!string.has_value())
|
|
|
|
throwLexerError("invalid string literal", lineNumber);
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
|
2021-01-09 21:45:48 +01:00
|
|
|
auto [s, stringSize] = string.value();
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
|
2021-01-09 21:45:48 +01:00
|
|
|
tokens.emplace_back(VALUE_TOKEN(String, s));
|
|
|
|
offset += stringSize;
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
} else if (std::isalpha(c)) {
|
|
|
|
std::string identifier = matchTillInvalid(&code[offset], [](char c) -> bool { return std::isalnum(c) || c == '_'; });
|
|
|
|
|
|
|
|
// Check for reserved keywords
|
|
|
|
|
|
|
|
if (identifier == "struct")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, Struct));
|
|
|
|
else if (identifier == "union")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, Union));
|
|
|
|
else if (identifier == "using")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, Using));
|
|
|
|
else if (identifier == "enum")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, Enum));
|
|
|
|
else if (identifier == "bitfield")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, Bitfield));
|
|
|
|
else if (identifier == "be")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, BigEndian));
|
|
|
|
else if (identifier == "le")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, LittleEndian));
|
2021-01-07 00:02:51 +01:00
|
|
|
else if (identifier == "if")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, If));
|
|
|
|
else if (identifier == "else")
|
|
|
|
tokens.emplace_back(TOKEN(Keyword, Else));
|
2021-01-07 17:34:50 +01:00
|
|
|
else if (identifier == "false")
|
2021-01-07 21:52:03 +01:00
|
|
|
tokens.emplace_back(VALUE_TOKEN(Integer, Token::IntegerLiteral(Token::ValueType::Unsigned8Bit, u8(0))));
|
2021-01-07 17:34:50 +01:00
|
|
|
else if (identifier == "true")
|
2021-01-07 21:52:03 +01:00
|
|
|
tokens.emplace_back(VALUE_TOKEN(Integer, Token::IntegerLiteral(Token::ValueType::Unsigned8Bit, u8(1))));
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
|
|
|
|
// Check for built-in types
|
|
|
|
else if (identifier == "u8")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Unsigned8Bit));
|
|
|
|
else if (identifier == "s8")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Signed8Bit));
|
|
|
|
else if (identifier == "u16")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Unsigned16Bit));
|
|
|
|
else if (identifier == "s16")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Signed16Bit));
|
|
|
|
else if (identifier == "u32")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Unsigned32Bit));
|
|
|
|
else if (identifier == "s32")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Signed32Bit));
|
|
|
|
else if (identifier == "u64")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Unsigned64Bit));
|
|
|
|
else if (identifier == "s64")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Signed64Bit));
|
|
|
|
else if (identifier == "u128")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Unsigned128Bit));
|
|
|
|
else if (identifier == "s128")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Signed128Bit));
|
|
|
|
else if (identifier == "float")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Float));
|
|
|
|
else if (identifier == "double")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Double));
|
|
|
|
else if (identifier == "char")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Character));
|
2021-01-07 17:34:50 +01:00
|
|
|
else if (identifier == "bool")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Boolean));
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
else if (identifier == "padding")
|
|
|
|
tokens.emplace_back(TOKEN(ValueType, Padding));
|
|
|
|
|
|
|
|
// If it's not a keyword and a builtin type, it has to be an identifier
|
|
|
|
|
|
|
|
else
|
|
|
|
tokens.emplace_back(VALUE_TOKEN(Identifier, identifier));
|
|
|
|
|
|
|
|
offset += identifier.length();
|
|
|
|
} else if (std::isdigit(c)) {
|
2021-01-05 14:42:08 +01:00
|
|
|
auto integer = parseIntegerLiteral(&code[offset]);
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
|
|
|
|
if (!integer.has_value())
|
|
|
|
throwLexerError("invalid integer literal", lineNumber);
|
|
|
|
|
|
|
|
|
|
|
|
tokens.emplace_back(VALUE_TOKEN(Integer, integer.value()));
|
2021-01-05 14:42:08 +01:00
|
|
|
offset += getIntegerLiteralLength(&code[offset]);
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
} else
|
|
|
|
throwLexerError("unknown token", lineNumber);
|
|
|
|
|
2020-11-27 21:20:23 +01:00
|
|
|
}
|
Pattern Language rewrite (#111)
* Initial parser rewrite effort
Lexer and Token cleanup, Parser started over
* Greatly improved parser syntax
* Reimplemented using declarations and variable placement parsing
* Added back unions and structs
* Added enums as well as mathematical expressions (+, -, *, /, <<, >>, &, |, ^)
* Code style improvement
* Implemented arrays and fixed memory issues
* Fixed more memory issues in parser, reimplemented validator, evaluator and patterns
* Fixed builtin types, arrays and reimplemented strings
* Improved error messages
* Made character a distinct type, used for chars and strings
* Implemented padding, fixed arrays
* Added bitfields
* Added rvalue parsing, no evaluating yet
* Added .idea folder to gitignore
* Fixed build on MacOS
* Added custom implementation of integral concept if not available
* Rebased onto master
* Fixed array variable decl crash
* Added rvalues and dot syntax
* Lower case all pattern language error messages
* Fixed typo in variable name
* Fixed bug where preprocessor would not ignore commented out directives
* Reimplemented pointers
* Fixed rebase issues
2021-01-02 20:27:11 +01:00
|
|
|
|
|
|
|
tokens.emplace_back(TOKEN(Separator, EndOfProgram));
|
|
|
|
} catch (LexerError &e) {
|
|
|
|
this->m_error = e;
|
|
|
|
return { };
|
2020-11-10 15:26:38 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-12-22 18:10:01 +01:00
|
|
|
return tokens;
|
2020-11-10 15:26:38 +01:00
|
|
|
}
|
|
|
|
}
|