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tree-sitter-sml.ebnf
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/*
Grammar originally from https://github.com/stonebuddha/tree-sitter-sml
Converted by excuting:
qjs json2ebnf.js
Then manualy fixing the problems reported by https://www.bottlecaps.de/rr/ui in a way to allow visualization (correctnes is not the priority now)
*/
source_file ::= ( ( _exp | ( _sdec )* ) ( ( ';' ( _exp | ( _sdec )* ) ) )* )
_sdec ::= ( structure_dec | signature_dec | funsig_dec | functor_dec | local_dec | _ldec )
structure_dec ::= ( 'structure' strb ( ( 'and' strb ) )* )
strb ::= ( ident ( _sigconstraint_op )? '=' _str )
_sigconstraint_op ::= ( transparent_sigconstraint_op | opaque_sigconstraint_op )
transparent_sigconstraint_op ::= ( ':' _sign )
opaque_sigconstraint_op ::= ( ':>' _sign )
_str ::= ( var_struct | base_struct | app_struct | let_struct | constraint_struct )
var_struct ::= qident
base_struct ::= ( 'struct' ( ( ';' | _strdec ) )* 'end' )
_strdec ::= ( structure_dec_strdec | functor_dec_strdec | local_dec_strdec | _ldec )
structure_dec_strdec ::= ( 'structure' strb ( ( 'and' strb ) )* )
functor_dec_strdec ::= ( 'functor' fctb ( ( 'and' fctb ) )* )
local_dec_strdec ::= ( 'local' ( ( ';' | _strdec ) )* 'in' ( ( ';' | _strdec ) )* 'end' )
app_struct ::= ( qident ( arg_fct )+ )
let_struct ::= ( 'let' ( ( ';' | _strdec ) )* 'in' _str 'end' )
constraint_struct ::= ( _str ( ':' | ':>' ) _sign )
signature_dec ::= ( 'signature' sigb ( ( 'and' sigb ) )* )
sigb ::= ( ident '=' _sign )
_sign ::= ( var_sign | base_sign | aug_sign )
var_sign ::= ident
base_sign ::= ( 'sig' ( ( ';' | _spec ) )* 'end' )
aug_sign ::= ( ( _sign 'where' _whspec ( ( 'and' _whspec ) )* ) )
_spec ::= ( str_spec | functor_spec | datatype_repl_spec | datatype_spec | type_spec | eqtype_spec | val_spec | exception_spec | sharing_spec | include_spec )
str_spec ::= ( 'structure' strspec ( ( 'and' strspec ) )* )
strspec ::= ( ident ':' _sign ( ( '=' qident ) )? )
functor_spec ::= ( 'functor' fctspec ( ( 'and' fctspec ) )* )
fctspec ::= ( ident _fsig )
datatype_repl_spec ::= ( 'datatype' dtrepl )
dtrepl ::= ( _full_ident '=' 'datatype' con_ty )
datatype_spec ::= ( 'datatype' db ( ( 'and' db ) )* ( ( 'withtype' tb ( ( 'and' tb ) )* ) )? )
type_spec ::= ( 'type' tyspec ( ( 'and' tyspec ) )* )
tyspec ::= ( ( tyvar_seq )? _full_ident ( ( '=' _ty ) )? )
eqtype_spec ::= ( 'eqtype' tyspec ( ( 'and' tyspec ) )* )
val_spec ::= ( 'val' valspec ( ( 'and' valspec ) )* )
valspec ::= ( ( 'op' )? _full_ident ':' _ty )
exception_spec ::= ( 'exception' exnspec ( ( 'and' exnspec ) )* )
exnspec ::= ( _full_ident ( ( 'of' _ty ) )? )
sharing_spec ::= ( 'sharing' sharespec ( ( 'and' sharespec ) )* )
sharespec ::= ( ( 'type' )? qident ( ( '=' qident ) )+ )
include_spec ::= ( 'include' ( _sign | ( ident ( ident )+ ) ) )
_whspec ::= ( type_whspec | struct_whsepc )
type_whspec ::= ( 'type' ( tyvar_seq )? qident '=' _ty )
struct_whsepc ::= ( qident '=' qident )
funsig_dec ::= ( 'funsig' fsigb ( ( 'and' fsigb ) )* )
fsigb ::= ( ident ( fparam )+ '=' _sign )
_fsig ::= ( var_fsig | base_fsig )
var_fsig ::= ( ':' ident )
base_fsig ::= ( ( fparam )+ ':' _sign )
functor_dec ::= ( 'functor' fctb ( ( 'and' fctb ) )* )
fctb ::= ( ( ident ( fparam )+ ( _sigconstraint_op )? '=' _str ) | ( ident ( _fsigconstraint_op )? '=' _fct_exp ) )
fparam ::= ( ( '(' ident ':' _sign ')' ) | ( '(' ( ( ';' | _spec ) )* ')' ) )
_fsigconstraint_op ::= ( transparent_fsigconstraint_op | opaque_fsigconstraint_op )
transparent_fsigconstraint_op ::= ( ':' ident )
opaque_fsigconstraint_op ::= ( ':>' ident )
_fct_exp ::= ( var_fct_exp | app_fct_exp | let_fct_exp )
var_fct_exp ::= qident
app_fct_exp ::= ( qident ( arg_fct )+ )
arg_fct ::= ( ( '(' ( ( ';' | _strdec ) )* ')' ) | ( '(' _str ')' ) )
let_fct_exp ::= ( 'let' ( ( ';' | _strdec ) )* 'in' _fct_exp 'end' )
local_dec ::= ( 'local' ( ( ';' | _sdec ) )* 'in' ( ( ';' | _sdec ) )* 'end' )
_ldec ::= ( val_ldec | fun_ldec | type_ldec | datatype_repl_ldec | datatype_ldec | abstype_ldec | exception_ldec | open_ldec | fixity_ldec | overload_ldec )
val_ldec ::= ( 'val' ( tyvar_seq )? ( 'rec' )? vb ( ( 'and' vb ) )* )
vb ::= ( _pat '=' _exp )
fun_ldec ::= ( 'fun' ( tyvar_seq )? fb ( ( 'and' fb ) )* )
fb ::= ( clause ( ( '|' clause ) )* )
clause ::= ( ( _apat )+ ( constraint )? '=' _exp )
constraint ::= ( ':' _ty )
type_ldec ::= ( 'type' tb ( ( 'and' tb ) )* )
tb ::= ( ( tyvar_seq )? _full_ident '=' _ty )
datatype_repl_ldec ::= ( 'datatype' dtrepl )
datatype_ldec ::= ( 'datatype' db ( ( 'and' db ) )* ( ( 'withtype' tb ( ( 'and' tb ) )* ) )? )
db ::= ( ( tyvar_seq )? _full_ident '=' constr ( ( '|' constr ) )* )
constr ::= ( ( 'op' )? _full_ident ( ( 'of' _ty ) )? )
abstype_ldec ::= ( 'abstype' db ( ( 'and' db ) )* ( ( 'withtype' tb ( ( 'and' tb ) )* ) )? 'with' ( ( ';' | _ldec | local_dec_let ) )* 'end' )
exception_ldec ::= ( 'exception' eb ( ( 'and' eb ) )* )
eb ::= ( ( 'op' )? _full_ident ( ( exn_gen | exn_def ) )? )
exn_gen ::= ( 'of' _ty )
exn_def ::= ( '=' qident )
open_ldec ::= ( 'open' ( qident )+ )
fixity_ldec ::= ( ( ( ( 'infix' | 'infixr' ) ( int_constant )? ) | 'nonfix' ) ( _full_ident )+ )
overload_ldec ::= ( 'overload' _full_ident ':' _ty 'as' _exp ( ( 'and' _exp ) )* )
_pat ::= ( as_pat | constraint_pat | app_pat )
as_pat ::= ( ( _pat 'as' _pat ) )
constraint_pat ::= ( _pat ':' _ty )
app_pat ::= ( _apat )+
_apat ::= ( _apat_ | paren_pat | var_pat | tuple_unit_pat | tuple_pat | or_pat )
paren_pat ::= ( '(' _pat ')' )
var_pat ::= _full_ident
tuple_unit_pat ::= ( '(' ')' )
tuple_pat ::= ( '(' _pat ( ( ',' _pat ) )+ ')' )
or_pat ::= ( '(' _pat ( ( '|' _pat ) )+ ')' )
_apat_ ::= ( op_pat | access_pat | constant_pat | wild_pat | list_pat | vector_pat | rec_unit_pat | rec_pat )
op_pat ::= ( 'op' _full_ident )
access_pat ::= ( ( 'op' )? ident '.' qident )
constant_pat ::= _constant
wild_pat ::= '_'
list_pat ::= ( ( '[' ']' ) | ( '[' _pat ( ( ',' _pat ) )* ']' ) )
vector_pat ::= ( ( '#[' ']' ) | ( '#[' _pat ( ( ',' _pat ) )* ']' ) )
rec_unit_pat ::= ( '{' '}' )
rec_pat ::= ( '{' plabels '}' )
plabels ::= ( ( plabel ( ( ',' plabel ) )* ( ( ',' '...' ) )? ) | '...' )
plabel ::= ( ( selector '=' _pat ) | ( _full_ident ( ( ':' _ty ) )? ( ( 'as' _pat ) )? ) )
match ::= ( ( rule ( ( '|' rule ) )* ) )
rule ::= ( ( _pat '=>' _exp ) )
_exp ::= ( handle_exp | orelse_exp | andalso_exp | constraint_exp | app_exp | fn_exp | case_exp | while_exp | if_exp | raise_exp )
handle_exp ::= ( ( _exp 'handle' match ) )
orelse_exp ::= ( ( _exp 'orelse' _exp ) )
andalso_exp ::= ( ( _exp 'andalso' _exp ) )
constraint_exp ::= ( _exp ':' _ty )
app_exp ::= ( ( _aexp | var_exp ) )+
fn_exp ::= ( 'fn' match )
case_exp ::= ( 'case' _exp 'of' match )
while_exp ::= ( ( 'while' _exp 'do' _exp ) )
if_exp ::= ( ( 'if' _exp 'then' _exp 'else' _exp ) )
raise_exp ::= ( ( 'raise' _exp ) )
var_exp ::= _full_ident
_aexp ::= ( op_exp | access_exp | constant_exp | selector_exp | rec_exp | rec_unit_exp | tuple_unit_exp | seq_exp | tuple_exp | list_exp | vector_exp | let_exp )
op_exp ::= ( 'op' _full_ident )
access_exp ::= ( ( 'op' )? ident '.' qident )
constant_exp ::= _constant
selector_exp ::= ( '#' selector )
rec_exp ::= ( '{' elabel ( ( ',' elabel ) )* '}' )
elabel ::= ( selector '=' _exp )
rec_unit_exp ::= ( '{' '}' )
tuple_unit_exp ::= ( '(' ')' )
seq_exp ::= ( '(' _exp ( ( ';' _exp ) )* ')' )
tuple_exp ::= ( '(' _exp ( ( ',' _exp ) )+ ')' )
list_exp ::= ( ( '[' ']' ) | ( '[' _exp ( ( ',' _exp ) )* ']' ) )
vector_exp ::= ( ( '#[' ']' ) | ( '#[' _exp ( ( ',' _exp ) )* ']' ) )
let_exp ::= ( 'let' ( ( _ldec | ';' | local_dec_let ) )* 'in' _exp ( ( ';' _exp ) )* 'end' )
local_dec_let ::= ( 'local' ( ( _ldec | ';' | local_dec_let ) )* 'in' ( ( _ldec | ';' | local_dec_let ) )* 'end' )
_constant ::= ( int_constant | word_constant | float_constant | char_constant | string_constant )
int_constant ::= ( '~'?[0-9]+|'~'?'0x'[0-9A-Fa-f]+ )
word_constant ::= ( '0w'[0-9]+|'0wx'[0-9A-Fa-f]+ )
float_constant ::= ( '~'?[0-9]+'.'[\d]+([Ee]'~'?[\d]+)? )
char_constant ::= character
string_constant ::= string
_ty ::= ( tuple_ty | arrow_ty | _ty_ )
tuple_ty ::= ( _ty_ ( ( '*' _ty_ ) )+ )
arrow_ty ::= ( ( _ty '->' _ty ) )
_ty_ ::= ( var_ty | rec_ty | mark_ty | paren_ty )
var_ty ::= tyvar
rec_ty ::= ( ( '{' '}' ) | ( '{' tlabel ( ( ',' tlabel ) )* '}' ) )
tlabel ::= ( selector ':' _ty )
mark_ty ::= ( ( ( _ty_ | ( '(' _ty ( ( ',' _ty ) )+ ')' ) ) )? con_ty )
con_ty ::= qident
paren_ty ::= ( '(' _ty ')' )
tyvar_seq ::= ( tyvar | ( '(' tyvar ( ( ',' tyvar ) )+ ')' ) )
selector ::= ( _full_ident | [0-9]+ )
tyvar ::= "'"[A-Za-z0-9_']+
ident ::= [A-Za-z][A-Za-z0-9_']*
symbolic ::= ( [!%&$#+\-/:<=>?@\\~`^|*][!%&$#+\-/:<=>?@\\~`^|*][!%&$#+\-/:<=>?@\\~`^|*]+ | [!%&$#+/<>?@\\~`^|*][!%&$#+\-/:<=>?@\\~`^|*] | [\-:=][!%&$#+\-/:<=?@\\~`^|*] | [!%&$+\-/<=>?@\\~`^*] )
_full_ident ::= ( ident | symbolic )
qident ::= ( ( ( ident '.' ) )* _full_ident )