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require "complex-numbers.k"
require "bytes.k"
module PYTHON-TOKENS
imports COMPLEX-NUMBERS
imports BYTES
syntax NAME ::= Id
syntax NUMBER ::= Int | Float | Imaginary
syntax STRING ::= String | Bytes
syntax NAMES ::= List{NAME,","} [seqstrict, hybrid]
endmodule
module PYTHON-SYNTAX imports PYTHON-TOKENS
syntax CompFor ::= "for" Targets "in" Expressions
syntax CompIf ::= "if" Expression
syntax Comp ::= CompFor
| CompIf
syntax Comps ::= List{Comp,"@"}
syntax YieldExpression ::= "yield" Expression [strict]
| "yield"
syntax KeyData ::= List{KeyDatum,","} [seqstrict]
syntax KeyDatum ::= Expression ":" Expression [seqstrict, hybrid]
syntax Arguments ::= List{Argument,","}
syntax Argument ::= Expression
| NAME "=" Expression [strict(2)]
// "*" Expression is implicit
| "**" Expression [strict, hybrid]
syntax Expression ::= ":" ":"
| Expression ":" ":"
| ":" Expression ":"
| ":" ":" Expression
| Expression ":" Expression ":" [seqstrict]
| Expression ":" ":" Expression [seqstrict]
| ":" Expression ":" Expression [seqstrict]
| Expression ":" Expression ":" Expression [seqstrict]
syntax Expression ::= "(" Expression ")" [bracket]
| NAME
| NUMBER
| STRING
| "tuple" "(" Expressions ")" [strict]
| "[" Expression Comps "]"
| "generator" "(" Expression Comps ")"
| "{" Expression Comps "}"
| "{" Expression ":" Expression Comps "}"
| "[" Expressions "]" [strict]
| "{" KeyData "}" [strict]
| "{" Expressions "}" [strict, klabel('Set)]
| YieldExpression
| "..."
> Expression "." NAME [strict(1), left]
| Expression "[" Expression "]" [seqstrict, left]
| Expression "(" Arguments ")" [seqstrict, left]
> Expression "**" Expression [seqstrict, right]
> "-" Expression [strict]
| "+" Expression [strict]
| "~" Expression [strict]
> Expression "*" Expression [seqstrict, left]
| Expression "floor/" Expression [seqstrict, left]
| Expression "/" Expression [seqstrict, left]
| Expression "%" Expression [seqstrict, left]
> Expression "+" Expression [seqstrict, left]
| Expression "-" Expression [seqstrict, left]
> Expression "<<" Expression [seqstrict, left]
| Expression ">>" Expression [seqstrict, left]
> Expression "&" Expression [seqstrict, left]
> Expression "^" Expression [seqstrict, left]
> Expression "|" Expression [seqstrict, left]
> Expression "<" Expression [right]
| Expression ">" Expression [right]
| Expression "==" Expression [right]
| Expression ">=" Expression [right]
| Expression "<=" Expression [right]
| Expression "!=" Expression [right]
| Expression "is" Expression [right]
| Expression "is" "not" Expression [right]
| Expression "in" Expression [right]
| Expression "not" "in" Expression [right]
> "not" Expression [strict]
> Expression "and" Expression [strict(1), left]
> Expression "or" Expression [strict(1), left]
> Expression "if" Expression "else" Expression [strict(2), right]
> "lambda" Parameters ":" Expression
| "*" Expression [strict, hybrid]
syntax "*" -/- [\*]
syntax Expressions ::= List{Expression,","}
syntax Targets ::= Expressions
syntax Target ::= Expression
syntax Aliases ::= List{Alias,","}
syntax Alias ::= Expression
| Expression "as" Expression [strict(1)]
syntax RelativeModule ::= ".dir"
| Expression
| "." RelativeModule
syntax ExceptClauses ::= List{ExceptClause,"except"}
syntax Statement ::= Expression ";" [strict]
| Targets ":=" Expression [strict(2)]
| Target "+=" Expression [strict(2)]
| Target "-=" Expression [strict(2)]
| Target "*=" Expression [strict(2)]
| Target "/=" Expression [strict(2)]
| Target "floor/=" Expression [strict(2)]
| Target "%=" Expression [strict(2)]
| Target "**=" Expression [strict(2)]
| Target ">>=" Expression [strict(2)]
| Target "<<=" Expression [strict(2)]
| Target "&=" Expression [strict(2)]
| Target "^=" Expression [strict(2)]
| Target "|=" Expression [strict(2)]
| "assert" Expressions
| "pass"
| "del" Targets
| "return" Expression [strict]
| "return"
| "raise"
| "raise" Expression [strict]
| "raise" Expression "from" Expression [seqstrict]
| "break"
| "continue"
| "import" Aliases
| "from" RelativeModule "import" Aliases
| "from" Expression "import" "*"
| "global" NAMES
| "nonlocal" NAMES
> "if" Expression ":" Statements "else" ":" Statements [strict(1)]
| "while" Expression ":" Statements "else" ":" Statements
| "for" Target "in" Expression ":" Statements "else" ":" Statements
| "try" ":" Statements ExceptClauses "else" ":" Statements //"finally" ":" Statements
| "try" ":" Statements ExceptClauses "else" ":" Statements "finally" ":" Statements
| "try" ":" Statements "finally" ":" Statements
| "with" Aliases ":" Statements [strict(1)]
| Decorated
syntax Statements ::= Statement
> Statement "newline" Statements
syntax ExceptClause ::= "except" ":" Statements
| "except" Expression ":" Statements [strict(1)]
| "except" Expression "as" NAME ":" Statements [strict(1)]
syntax Decorated ::= ClassDef
| FuncDef
| "@" Expression "newline" Decorated [strict(1)]
syntax Parameter ::= NAME
| NAME ":" Expression
syntax DefParameter ::= Parameter
| Parameter "=" Expression
| "*"
| "*" Parameter
| "**" Parameter
syntax Parameters ::= List{DefParameter,","} [seqstrict]
syntax FuncDef ::= "def" NAME "(" Parameters ")" "->" Expression ":" Statements
| "def" NAME "(" Parameters ")" ":" Statements
syntax ClassDef ::= "class" NAME "(" Arguments ")" ":" Statements [strict(2)]
endmodule