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trixy/trixy-parser/docs/grammar.ebnf

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EBNF

# (*
# Trixy is fully whitespace independent, this means that you can
# interleave whitespace in the definitions.
# The same applies to comments:
# - Line comments (`// \n`) and
# - Block comments (`/* */`).
# *)
CommandSpec = {Function | Namespace | Enumeration | Structure } ;
Function = {DocComment} "fn" Identifier "(" [NamedType {"," NamedType }] ")" [ "->" Type ] ";" ;
Namespace = {DocComment} "mod" Identifier "{" {Function | Namespace | Enumeration | Structure} "}" ;
Structure = {DocComment} "struct" Identifier "{" [DocNamedType {"," DocNamedType } [","]] "}";
Enumeration = {DocComment} "enum" Identifier "{" [DocIdentifier {"," DocIdentifier} [","]] "}";
Type = Identifier ["<" Type {"," Type} ">"];
Identifier = (CHARACTER | "_") { NUMBER | CHARACTER | "_" } ;
DocIdentifier = {DocComment} (CHARACTER | "_") { NUMBER | CHARACTER | "_" } ;
NamedType = Identifier ":" Type;
DocNamedType = {DocComment} Identifier ":" Type;
DocComment = "///" {ANYTHING} LineEnding;
Comment = "//" [ NOT ("/" {ANYTHING} LineEnding) | "//"] {ANYTHING} LineEnding;
LineEnding = "\\n" | "\\r" | "\\r\\n";
# (*
# vim: ft=ebnf
# *)