mirror of
https://github.com/autc04/Retro68.git
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463 lines
13 KiB
Plaintext
463 lines
13 KiB
Plaintext
%require "3.0.2"
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%defines
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%define parser_class_name {RezParser}
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%skeleton "lalr1.cc"
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%locations;
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%define api.token.constructor
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%define api.value.type variant
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%define parse.assert
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%token<std::string> IDENTIFIER;
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%token<int> CHARLIT;
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%token<std::string> STRINGLIT;
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%token<int> INTLIT;
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%token<std::string> BADTOKEN;
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%token LEFTBRACE "{";
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%token RIGHTBRACE "}";
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%token LEFTBRACKET "[";
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%token RIGHTBRACKET "]";
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%token LEFTPAREN "(";
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%token RIGHTPAREN ")";
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%token SEMICOLON ";";
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%token COMMA ",";
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%token PLUS "+";
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%token MINUS "-";
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%token DIVIDE "/";
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%token STAR "*";
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%token ASSIGN "=";
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%token COLON ":";
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%token SHIFTLEFT "<<";
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%token SHIFTRIGHT ">>";
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%token EQUAL "==";
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%token NOTEQUAL "!=";
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%token AND "&";
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%token OR "|";
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%token XOR "^";
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%token COMPL "~";
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%token DOLLAR "$";
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%token TYPE "type";
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%token RESOURCE "resource";
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%token DATA "data";
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%token READ "read";
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%token INCLUDE "include";
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%token CHANGE "change";
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%token DELETE "delete";
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%token ARRAY "array";
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%token SWITCH "switch";
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%token CASE "case";
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%token AS "as";
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%token FILL "fill";
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%token ALIGN "align";
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%token HEX "hex";
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%token KEY "key";
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%token WIDE "wide";
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%token LITERAL "literal";
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%token UNSIGNED "unsigned";
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%token BOOLEAN "boolean";
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%token BIT "bit";
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%token NIBBLE "nibble";
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%token BYTE "byte";
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%token CHAR "char";
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%token WORD "word";
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%token INTEGER "integer";
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%token LONG "long";
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%token LONGINT "longint";
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%token PSTRING "pstring";
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%token WSTRING "wstring";
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%token STRING "string";
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%token POINT "point";
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%token RECT "rect";
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%token BITSTRING "bitstring";
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%token FUN_COUNTOF "$$countof";
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%token FUN_ARRAYINDEX "$$arrayindex";
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%token FUN_READ "$$read";
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%token FUN_BITFIELD "$$bitfield";
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%token FUN_WORD "$$word";
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%token FUN_BYTE "$$byte";
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%token FUN_LONG "$$long";
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/*
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%left "|";
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%left "^";
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%left "&";
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%left "==" "!=";
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%left ">>" "<<";
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%left "+" "-";
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%left "*" "/";
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*/
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%param { RezLexer& lexer }
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%param { RezWorld& world }
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%code requires {
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#include "ResourceDefinitions.h"
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#include "Expression.h"
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#include "ResSpec.h"
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#define YY_NULLPTR nullptr
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class RezLexer;
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class RezWorld;
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}
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%code provides {
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using yy::RezParser;
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//using RezSymbol = yy::RezParser::symbol_type;
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class RezSymbol : public yy::RezParser::symbol_type
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{
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public:
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RezSymbol() = default;
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RezSymbol(const yy::RezParser::symbol_type& x) : yy::RezParser::symbol_type(x) {}
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};
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}
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%code {
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#include "RezLexer.h"
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#include "RezWorld.h"
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#include "ResourceCompiler.h"
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static yy::RezParser::symbol_type yylex(RezLexer& lexer, RezWorld&)
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{
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return lexer.nextToken();
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}
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void yy::RezParser::error(const location_type& loc, std::string const& err)
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{
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std::cerr << loc << ": " << err << std::endl;
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}
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static std::string fromHex(std::string hex)
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{
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std::string bin;
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int nibble;
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bool haveNibble = false;
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for(std::string::iterator p = hex.begin(); p != hex.end(); ++p)
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{
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if(std::isspace(*p))
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continue;
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assert(isdigit(*p) || (tolower(*p) >= 'a' && tolower(*p) <= 'f'));
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int digit;
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if(isdigit(*p))
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digit = *p - '0';
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else
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digit = tolower(*p) - 'a' + 0xA;
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if(haveNibble)
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{
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bin += (char) ((nibble << 4) | digit);
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haveNibble = false;
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}
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else
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{
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nibble = digit;
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haveNibble = true;
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}
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}
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return bin;
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}
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}
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%%
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%start rez;
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rez : %empty
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| rez type_definition ";"
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| rez resource ";"
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| rez data ";"
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;
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type_definition : "type" type_spec
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{
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TypeDefinitionPtr td = std::make_shared<TypeDefinition>();
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world.addTypeDefinition($type_spec, td);
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world.fieldLists.push(td);
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}
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"{" field_definitions "}"
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{ world.fieldLists.pop(); if(world.verboseFlag) std::cout << "TYPE " << $2 << std::endl; }
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| "type" type_spec "as" type_spec
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{ if(world.verboseFlag) std::cout << "TYPE " << $2 << std::endl; }
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;
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%type <ResType> res_type;
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res_type : CHARLIT { $$ = ResType($1); } ;
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%type <TypeSpec> type_spec;
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type_spec : res_type { $$ = TypeSpec($res_type); }
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| res_type "(" INTLIT ")" { $$ = TypeSpec($res_type, $INTLIT); }
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;
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field_definitions : %empty
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| field_definitions IDENTIFIER ":" { world.fieldLists.top()->addLabel($2); }
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| field_definitions ";"
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| field_definitions field_definition ";" { world.fieldLists.top()->addField($2); }
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;
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%type <FieldPtr> field_definition;
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field_definition: simple_field_definition { $$ = $1; }
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| array_definition { $$ = $1; }
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| switch_definition { $$ = $1; }
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| fill_statement { $$ = $1; }
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| align_statement { $$ = $1; }
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;
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%type <SimpleFieldPtr> simple_field_definition;
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simple_field_definition: field_attributes simpletype array_count_opt value_spec_opt
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{
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$$ = std::make_shared<SimpleField>();
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$$->attrs = $field_attributes;
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$$->type = $simpletype;
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$$->arrayCount = $array_count_opt;
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$$->value = $value_spec_opt;
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}
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| simple_field_definition IDENTIFIER
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{ $$ = $1; $$->addNamedValue($IDENTIFIER); }
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| simple_field_definition IDENTIFIER "=" value
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{ $$ = $1; $$->addNamedValue($IDENTIFIER, $value); }
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| simple_field_definition "," IDENTIFIER
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{ $$ = $1; $$->addNamedValue($IDENTIFIER); }
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| simple_field_definition "," IDENTIFIER "=" value
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{ $$ = $1; $$->addNamedValue($IDENTIFIER, $value); }
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;
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%type <ExprPtr> array_count array_count_opt value_spec_opt value resource_item;
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%type <ExprPtr> expression expression1 expression2 ;
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%type <ExprPtr> expression3 expression4 expression5 ;
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%type <ExprPtr> expression6 expression7 expression8;
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value_spec_opt : %empty { $$ = nullptr; } | "=" value { $$ = $2; } ;
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%type <SimpleField::Type> simpletype;
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simpletype : "boolean" { $$ = SimpleField::Type::boolean; }
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| "byte" { $$ = SimpleField::Type::byte; }
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| "integer" { $$ = SimpleField::Type::integer; }
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| "longint" { $$ = SimpleField::Type::longint; }
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| "rect" { $$ = SimpleField::Type::rect; }
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| "point" { $$ = SimpleField::Type::point; }
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| "char" { $$ = SimpleField::Type::char_; }
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| "pstring" { $$ = SimpleField::Type::pstring; }
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| "wstring" { $$ = SimpleField::Type::wstring; }
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| "string" { $$ = SimpleField::Type::string; }
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| "bitstring" { $$ = SimpleField::Type::bitstring; }
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;
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%type <FieldPtr> fill_statement align_statement;
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fill_statement : "fill" fill_unit array_count_opt
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{ $$ = std::make_shared<FillAlignField>($fill_unit, false, $array_count_opt); }
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;
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align_statement : "align" fill_unit
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{ $$ = std::make_shared<FillAlignField>($fill_unit, true); }
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;
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%type <FillAlignField::Type> fill_unit;
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fill_unit : "bit" { $$ = FillAlignField::Type::bit; }
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| "nibble" { $$ = FillAlignField::Type::nibble; }
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| "byte" { $$ = FillAlignField::Type::byte; }
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| "word" { $$ = FillAlignField::Type::word; }
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| "long" { $$ = FillAlignField::Type::long_; }
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;
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%type <FieldPtr> array_definition;
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array_definition:
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array_attributes "array" array_name_opt array_count_opt
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{
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ArrayFieldPtr af = std::make_shared<ArrayField>($array_name_opt, $array_count_opt);
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world.fieldLists.push(af);
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}
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"{" field_definitions "}"
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{
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$$ = world.fieldLists.top();
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world.fieldLists.pop();
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}
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;
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array_count : "[" expression "]" { $$ = $2; }
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array_count_opt : %empty { $$ = nullptr; } | array_count { $$ = $1; };
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%type <std::string> array_name_opt;
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array_name_opt : %empty { $$ = ""; } | IDENTIFIER { $$ = $1; } ;
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array_attributes: %empty | "wide" ;
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%type <SimpleField::Attrs> field_attributes field_attribute;
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field_attributes: %empty { $$ = SimpleField::Attrs::none; }
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| field_attributes field_attribute { $$ = $1 | $2; }
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;
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field_attribute : "hex" { $$ = SimpleField::Attrs::hex; }
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| "key" { $$ = SimpleField::Attrs::key; }
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| "unsigned" { $$ = SimpleField::Attrs::unsigned_; }
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| "literal" { $$ = SimpleField::Attrs::literal; }
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;
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%type <FieldPtr> switch_definition;
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switch_definition:
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"switch"
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{ world.switches.push(std::make_shared<SwitchField>()); }
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"{"
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switch_cases
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"}"
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{
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$$ = world.switches.top();
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world.switches.pop();
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}
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;
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switch_cases : %empty | switch_cases switch_case ;
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switch_case : "case" IDENTIFIER ":"
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{
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world.fieldLists.push(std::make_shared<FieldList>());
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}
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field_definitions
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{
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world.switches.top()->addCase($IDENTIFIER, world.fieldLists.top());
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world.fieldLists.pop();
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}
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;
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value : expression { $$ = $1; }
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| "{" resource_body "}" { $$ = $2; }
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| string_expression { $$ = $1; }
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;
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expression : expression1 { $$ = $1; }
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| expression "^" expression1 { $$ = std::make_shared<BinaryExpr>(BinaryOp::XOR, $1, $3); }
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;
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expression1 : expression2 { $$ = $1; }
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| expression1 "&" expression2 { $$ = std::make_shared<BinaryExpr>(BinaryOp::AND, $1, $3); }
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;
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expression2 : expression3 { $$ = $1; }
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| expression2 "|" expression3 { $$ = std::make_shared<BinaryExpr>(BinaryOp::OR, $1, $3); }
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;
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expression3 : expression4 { $$ = $1; }
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| expression3 "==" expression4 { $$ = std::make_shared<BinaryExpr>(BinaryOp::EQUAL, $1, $3); }
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| expression3 "!=" expression4 { $$ = std::make_shared<BinaryExpr>(BinaryOp::NOTEQUAL, $1, $3); }
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;
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expression4 : expression5 { $$ = $1; }
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| expression4 ">>" expression5 { $$ = std::make_shared<BinaryExpr>(BinaryOp::SHIFTRIGHT, $1, $3); }
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| expression4 "<<" expression5 { $$ = std::make_shared<BinaryExpr>(BinaryOp::SHIFTLEFT, $1, $3); }
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;
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expression5 : expression6 { $$ = $1; }
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| expression5 "+" expression6 { $$ = std::make_shared<BinaryExpr>(BinaryOp::PLUS, $1, $3); }
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| expression5 "-" expression6 { $$ = std::make_shared<BinaryExpr>(BinaryOp::MINUS, $1, $3); }
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;
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expression6 : expression7 { $$ = $1; }
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| expression6 "*" expression7 { $$ = std::make_shared<BinaryExpr>(BinaryOp::MULTIPLY, $1, $3); }
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| expression6 "/" expression7 { $$ = std::make_shared<BinaryExpr>(BinaryOp::DIVIDE, $1, $3); }
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;
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expression7 : expression8 { $$ = $1; }
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| "-" expression7 { $$ = std::make_shared<UnaryExpr>(UnaryOp::MINUS, $2); }
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| "+" expression7 { $$ = $2; }
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| "~" expression7 { $$ = std::make_shared<UnaryExpr>(UnaryOp::COMPLEMENT, $2); }
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;
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expression8 : INTLIT { $$ = std::make_shared<IntExpr>($1); }
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| CHARLIT { $$ = std::make_shared<IntExpr>($1); }
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| identifier_expression { $$ = $1; }
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| "(" expression ")" { $$ = $2; }
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| "$$countof" "(" identifier_expression ")"
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{ $$ = std::make_shared<CountOfExpr>($identifier_expression); }
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| "$$arrayindex" "(" identifier_expression ")"
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{ $$ = std::make_shared<ArrayIndexExpr>($identifier_expression); }
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| "$$bitfield" "(" expression "," expression "," expression ")"
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{ $$ = std::make_shared<PeekExpr>($3, $5, $7); }
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| "$$word" "(" expression ")"
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{ $$ = std::make_shared<PeekExpr>($3, 16); }
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| "$$byte" "(" expression ")"
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{ $$ = std::make_shared<PeekExpr>($3, 8); }
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| "$$long" "(" expression ")"
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{ $$ = std::make_shared<PeekExpr>($3, 32); }
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;
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%type <IdentifierExprPtr> identifier_expression;
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identifier_expression : IDENTIFIER { $$ = std::make_shared<IdentifierExpr>($1); }
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| IDENTIFIER
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{ world.functionCalls.push(std::make_shared<IdentifierExpr>($1)); }
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"[" function_argument_list1 "]"
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{ $$ = world.functionCalls.top(); world.functionCalls.pop(); }
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;
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function_argument_list : %empty | function_argument_list1 ;
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function_argument_list1 : expression
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{ world.functionCalls.top()->addArgument($expression); }
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| function_argument_list "," expression
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{ world.functionCalls.top()->addArgument($expression); }
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;
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%type <ExprPtr> string_expression string_expression1;
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string_expression : string_expression1 { $$ = $1; }
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| string_expression string_expression1
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{ $$ = std::make_shared<BinaryExpr>(BinaryOp::CONCAT, $1, $2); }
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;
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%type <std::string> stringlit;
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stringlit : STRINGLIT { $$ = $1; }
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| DOLLAR STRINGLIT { $$ = fromHex($2); }
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;
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string_expression1 : stringlit { $$ = std::make_shared<StringExpr>($1); }
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| "$$read" "(" string_expression ")"
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{ $$ = std::make_shared<ReadExpr>($string_expression); }
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;
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resource : "resource" res_spec "{" resource_body "}"
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{
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world.addResource($res_spec, $resource_body);
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}
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;
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%type <ResSpec> res_spec;
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res_spec : res_type "(" expression resource_attributes ")"
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{ $$ = $resource_attributes( ResSpec($res_type, $expression->evaluateInt(nullptr)) ); }
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%type <std::function<ResSpec(ResSpec)>> resource_attributes ;
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resource_attributes : %empty { $$ = [](ResSpec s){ return s; }; }
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| resource_attributes "," IDENTIFIER { $$ = $1; }
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| resource_attributes "," string_expression { $$ = $1; }
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;
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%type <CompoundExprPtr> resource_body resource_body1;
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resource_body : %empty { $$ = std::make_shared<CompoundExpr>(); }
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| resource_body1 { $$ = $1; }
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;
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resource_body1 : resource_item { $$ = std::make_shared<CompoundExpr>(); $$->addItem($1); }
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| resource_body1 "," resource_item { $$ = $1; $$->addItem($3); }
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| resource_body1 ";" resource_item { $$ = $1; $$->addItem($3); }
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| resource_body1 ";" { $$ = $1; }
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;
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resource_item : value { $$ = $1; }
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| IDENTIFIER "{" resource_body "}" { $$ = std::make_shared<CaseExpr>($IDENTIFIER, $resource_body); }
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;
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data : "data" res_spec "{" string_expression "}"
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{
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world.addData($res_spec, $string_expression->evaluateString(nullptr));
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}
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;
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%%
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