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Updated grammar.

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yhirose 2015-07-07 15:54:22 -04:00
parent 8b08ca3cca
commit 1ff6dc058b
1 changed files with 20 additions and 20 deletions
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40
language/parser.cc
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@ -9,22 +9,22 @@ static auto g_grammar = R"(
STATEMENTS <- (EXPRESSION (';' _)?)*
EXPRESSION <- ASSIGNMENT / PRIMARY
EXPRESSION <- ASSIGNMENT / LOGICAL_OR
ASSIGNMENT <- MUTABLE IDENTIFIER '=' _ EXPRESSION
WHILE <- 'while' _ EXPRESSION BLOCK
IF <- 'if' _ EXPRESSION BLOCK ('else' _ 'if' _ EXPRESSION BLOCK)* ('else' _ BLOCK)?
FUNCTION_CALL <- IDENTIFIER ARGUMENTS
ARGUMENTS <- '(' _ (EXPRESSION (', ' _ EXPRESSION)*)? ')' _
PRIMARY <- LOGICAL_OR ('||' _ LOGICAL_OR)*
LOGICAL_OR <- LOGICAL_AND ('&&' _ LOGICAL_AND)*
LOGICAL_AND <- CONDITION (CONDITION_OPERATOR CONDITION)*
CONDITION <- TERM (TERM_OPERATOR TERM)*
TERM <- UNARY_PLUS_OPERATOR? UNARY_PLUS
UNARY_PLUS <- UNARY_MINUS_OPERATOR? UNARY_MINUS
UNARY_MINUS <- UNARY_NOT_OPERATOR? UNARY_NOT
UNARY_NOT <- FACTOR (FACTOR_OPERATOR FACTOR)*
FACTOR <- WHILE / IF / FUNCTION / FUNCTION_CALL / ARRAY / ARRAY_REFERENCE / NUMBER / BOOLEAN / STRING / INTERPOLATED_STRING / IDENTIFIER / '(' _ EXPRESSION ')' _
LOGICAL_OR <- LOGICAL_AND ('||' _ LOGICAL_AND)*
LOGICAL_AND <- CONDITION ('&&' _ CONDITION)*
CONDITION <- ADDITIVE (CONDITION_OPERATOR ADDITIVE)*
ADDITIVE <- UNARY_PLUS (ADDITIVE_OPERATOR UNARY_PLUS)*
UNARY_PLUS <- UNARY_PLUS_OPERATOR? UNARY_MINUS
UNARY_MINUS <- UNARY_MINUS_OPERATOR? UNARY_NOT
UNARY_NOT <- UNARY_NOT_OPERATOR? MULTIPLICATIVE
MULTIPLICATIVE <- PRIMARY (MULTIPLICATIVE_OPERATOR PRIMARY)*
PRIMARY <- WHILE / IF / FUNCTION / FUNCTION_CALL / ARRAY / ARRAY_REFERENCE / NUMBER / BOOLEAN / STRING / INTERPOLATED_STRING / IDENTIFIER / '(' _ EXPRESSION ')' _
FUNCTION <- 'fn' _ PARAMETERS BLOCK
PARAMETERS <- '(' _ (PARAMETER (',' _ PARAMETER)*)? ')' _
@ -36,11 +36,11 @@ static auto g_grammar = R"(
BLOCK <- '{' _ STATEMENTS '}' _
CONDITION_OPERATOR <- < ('==' / '!=' / '<=' / '<' / '>=' / '>') > _
TERM_OPERATOR <- < [-+] > _
ADDITIVE_OPERATOR <- < [-+] > _
UNARY_PLUS_OPERATOR <- < '+' > _
UNARY_MINUS_OPERATOR <- < '-' > _
UNARY_NOT_OPERATOR <- < '!' > _
FACTOR_OPERATOR <- < [*/%] > _
MULTIPLICATIVE_OPERATOR <- < [*/%] > _
IDENTIFIER <- < [a-zA-Z_][a-zA-Z0-9_]* > _
@ -91,14 +91,14 @@ peg& get_parser()
{ "ARRAY", Array, false },
{ "ARRAY_REFERENCE", ArrayReference, false },
{ "ARGUMENTS", Default, false },
{ "PRIMARY", LogicalOr, true },
{ "LOGICAL_OR", LogicalAnd, true },
{ "LOGICAL_AND", Condition, true },
{ "CONDITION", BinExpresion, true },
{ "TERM", UnaryPlus, true },
{ "UNARY_PLUS", UnaryMinus, true },
{ "UNARY_MINUS", UnaryNot, true },
{ "UNARY_NOT", BinExpresion, true },
{ "LOGICAL_OR", LogicalOr, true },
{ "LOGICAL_AND", LogicalAnd, true },
{ "CONDITION", Condition, true },
{ "ADDITIVE", BinExpresion, true },
{ "UNARY_PLUS", UnaryPlus, true },
{ "UNARY_MINUS", UnaryMinus, true },
{ "UNARY_NOT", UnaryNot, true },
{ "MULTIPLICATIVE", BinExpresion, true },
{ "NUMBER", Number, false },
{ "BOOLEAN", Boolean, false },
{ "IDENTIFIER", Identifier, false },