Created
October 23, 2021 12:29
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TL pest grammar
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| WHITESPACE = _{ " " | NEWLINE } | |
| COMMENT = _{ | |
| ("//" ~ ANY* ~ (NEWLINE | EOI) ) | | |
| ("/*" ~ (!"*/" ~ ANY)* ~ "*/") | |
| } | |
| ident_char = @{ ASCII_ALPHANUMERIC | "_" } | |
| lc_ident = @{ ASCII_ALPHA_LOWER ~ ident_char* } | |
| uc_ident = @{ ASCII_ALPHA_UPPER ~ ident_char* } | |
| namespace_ident = @{ lc_ident } | |
| lc_ident_ns = @{ (namespace_ident ~ ".")* ~ lc_ident } | |
| uc_ident_ns = @{ (namespace_ident ~ ".")* ~ uc_ident } | |
| lc_ident_full = @{ lc_ident_ns ~ ("#" ~ ASCII_HEX_DIGIT{8})? } | |
| nat_const = @{ ASCII_DIGIT+ } | |
| tl_program = { | |
| SOI ~ constr_declarations ~ ( | |
| ("---" ~ "functions" ~ "---" ~ fun_declarations) | | |
| ("---" ~ "types" ~ "---" ~ constr_declarations) | |
| )* ~ EOI | |
| } | |
| constr_declarations = { declaration* } | |
| fun_declarations = { declaration* } | |
| declaration = { combinator_decl | builtin_combinator_decl | partial_app_decl | final_decl } | |
| type_expr = { expr } | |
| nat_expr = { expr } | |
| expr = { | |
| ( "(" ~ expr* ~ ")" ) | | |
| type_ident | | |
| var_ident | | |
| nat_const | | |
| ( "%" ~ expr ) | | |
| ( type_ident ~ "<" ~ expr ~ ("," ~ expr)* ~ ">" ) | |
| } | |
| type_ident = { boxed_type_ident | lc_ident_ns | "#" } | |
| boxed_type_ident = { uc_ident_ns } | |
| var_ident = { lc_ident | uc_ident } | |
| type_term = { expr } | |
| nat_term = { expr } | |
| combinator_decl = { full_combinator_id ~ opt_args* ~ args* ~ "=" ~ result_type ~ ";" } | |
| full_combinator_id = { lc_ident_full | "_" } | |
| combinator_id = { lc_ident_ns | "_" } | |
| opt_args = { "{" ~ var_ident+ ~ ":" ~ "!"? ~ type_expr ~ "}" } | |
| args = { | |
| ( var_ident_opt ~ ":" ~ conditional_def? ~ "!"? ~ type_expr ) | | |
| ( (var_ident_opt ~ ":")? ~ (multiplicity ~ "*")? ~ "[" ~ args* ~ "]" ) | | |
| ( "(" ~ var_ident_opt+ ~ ":" ~ "!"? ~ type_term ~ ")" ) | | |
| ( "!"? ~ type_term ) | |
| } | |
| multiplicity = { nat_term } | |
| var_ident_opt = { var_ident | "_" } | |
| conditional_def = { var_ident ~ ("." ~ nat_const)? ~ "?" } | |
| result_type = { | |
| ( boxed_type_ident ~ expr* ) | | |
| ( boxed_type_ident ~ "<" ~ expr ~ ("," ~ expr)* ~ ">" ) | |
| } | |
| builtin_combinator_decl = { full_combinator_id ~ "?" ~ "=" ~ boxed_type_ident ~ ";" } | |
| partial_app_decl = { partial_type_app_decl | partial_comb_app_decl } | |
| partial_type_app_decl = { | |
| (boxed_type_ident ~ expr+ ~ ";") | | |
| (boxed_type_ident ~ "<" ~ expr ~ ("," ~ expr)* ~ ">" ~ ";") | |
| } | |
| partial_comb_app_decl = { combinator_id ~ expr+ ~ ";" } | |
| final_decl = { | |
| ("New" ~ boxed_type_ident ~ ";") | | |
| ("Final" ~ boxed_type_ident ~ ";") | | |
| ("Empty" ~ boxed_type_ident ~ ";") | |
| } |
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