lezer-ludus/ludus.grammar

@top Script { terminator* line+ }

@skip { space | comment }

line { expression terminator+ }

expression { Boolean | Nil | String | Number }

@tokens {
	space { $[ \t\r]+ }
	comment { "&" ![\n]* }
	Boolean { "true" | "false" }
	Nil { "nil" }
	String { '"' (!["\\] | "\\" _)* '"' }
	int { $[1-9]$[0-9]* }
	float { ("0" | int ) $[0.9]+}
	Number { int | float }
	separator { $[,\n] }
	terminator { $[;\n] }
}