This grammar kills the online editor

[mingodad]

The grammar shown bellow seems to kill the online editor:

Uncaught (in promise) Error: The message port closed before a response was received.
pest-site.wasm:0x569b6 Uncaught RuntimeError: unreachable
    at __rust_start_panic (pest-site.wasm:0x569b6)
    at rust_panic (pest-site.wasm:0x567a6)
    at std::panicking::rust_panic_with_hook::h51f1c855dfa04d94 (pest-site.wasm:0x564bd)
    at std::panicking::continue_panic_fmt::h728aed66c815f8d0 (pest-site.wasm:0x56385)
    at rust_begin_unwind (pest-site.wasm:0x56309)
    at core::panicking::panic_fmt::h59066e1e00f1980f (pest-site.wasm:0x58faa)
    at core::panicking::panic::h2629fd904a66558c (pest-site.wasm:0x58ed2)
    at pest_site::parse_input::h8ebf157918e4c235 (pest-site.wasm:0x86cd)
    at stdweb::webapi::window_or_worker::funcall_adapter::h0353d924de912f2e (pest-site.wasm:0x2e16)
    at Object.Module.STDWEB_PRIVATE.dyncall (pest-site.js:425:40)
$__rust_start_panic @ pest-site.wasm:0x569b6
$rust_panic @ pest-site.wasm:0x567a6
$std::panicking::rust_panic_with_hook::h51f1c855dfa04d94 @ pest-site.wasm:0x564bd
$std::panicking::continue_panic_fmt::h728aed66c815f8d0 @ pest-site.wasm:0x56385
$rust_begin_unwind @ pest-site.wasm:0x56309
$core::panicking::panic_fmt::h59066e1e00f1980f @ pest-site.wasm:0x58faa
$core::panicking::panic::h2629fd904a66558c @ pest-site.wasm:0x58ed2
$pest_site::parse_input::h8ebf157918e4c235 @ pest-site.wasm:0x86cd
$stdweb::webapi::window_or_worker::funcall_adapter::h0353d924de912f2e @ pest-site.wasm:0x2e16
Module.STDWEB_PRIVATE.dyncall @ pest-site.js:425
(anonymous) @ pest-site.js:506
setTimeout (async)
__extjs_2034053b7b6771271a2dad3e5416b045a74488a1 @ pest-site.js:506
$<stdweb::webcore::newtype::Newtype<(stdweb::webcore::serialization::FunctionTag, (A12,)), F> as stdweb::webcore::serialization::FuncallAdapter<F>>::funcall_adapter::h3530217333f81f83 @ pest-site.wasm:0xc441
Module.STDWEB_PRIVATE.dyncall @ pest-site.js:425
output @ pest-site.js:151
4pest-site.wasm:0x564b6 Uncaught RuntimeError: unreachable
    at std::panicking::rust_panic_with_hook::h51f1c855dfa04d94 (pest-site.wasm:0x564b6)
    at std::panicking::continue_panic_fmt::h728aed66c815f8d0 (pest-site.wasm:0x56385)
    at rust_begin_unwind (pest-site.wasm:0x56309)
    at core::panicking::panic_fmt::h59066e1e00f1980f (pest-site.wasm:0x58faa)
    at core::panicking::panic::h2629fd904a66558c (pest-site.wasm:0x58ed2)
    at pest_site::parse_input::h8ebf157918e4c235 (pest-site.wasm:0x86cd)
    at stdweb::webapi::window_or_worker::funcall_adapter::h0353d924de912f2e (pest-site.wasm:0x2e16)
    at Object.Module.STDWEB_PRIVATE.dyncall (pest-site.js:425:40)
    at pest-site.js:506:112
$std::panicking::rust_panic_with_hook::h51f1c855dfa04d94 @ pest-site.wasm:0x564b6
$std::panicking::continue_panic_fmt::h728aed66c815f8d0 @ pest-site.wasm:0x56385
$rust_begin_unwind @ pest-site.wasm:0x56309
$core::panicking::panic_fmt::h59066e1e00f1980f @ pest-site.wasm:0x58faa
$core::panicking::panic::h2629fd904a66558c @ pest-site.wasm:0x58ed2
$pest_site::parse_input::h8ebf157918e4c235 @ pest-site.wasm:0x86cd
$stdweb::webapi::window_or_worker::funcall_adapter::h0353d924de912f2e @ pest-site.wasm:0x2e16
Module.STDWEB_PRIVATE.dyncall @ pest-site.js:425
(anonymous) @ pest-site.js:506
setTimeout (async)
__extjs_2034053b7b6771271a2dad3e5416b045a74488a1 @ pest-site.js:506
$<stdweb::webcore::newtype::Newtype<(stdweb::webcore::serialization::FunctionTag, (A12,)), F> as stdweb::webcore::serialization::FuncallAdapter<F>>::funcall_adapter::h3530217333f81f83 @ pest-site.wasm:0xc441
Module.STDWEB_PRIVATE.dyncall @ pest-site.js:425
output @ pest-site.js:151

The input:

a = 3

The grammar:

 file = {
	 shebangLine? ~  NL* ~  fileAnnotation* ~  _* ~  packageHeader* ~  _* ~  importList* ~  _* ~  ( filePart | _ | unparsable )* ~  EOF
}
 shebangLine = {
	 ShebangLine ~  _* ~  NL+
}
 NL = {
	 _* ~  ("\n"  | ("\r"  ~ "\n" ? ) ) ~  _*
}
 fileAnnotation = {
	 ( AT_NO_WS | AT_PRE_WS ) ~  FILE ~  NL* ~  COLON ~  _* ~  NL* ~  ( ( LSQUARE ~  _* ~  unescapedAnnotation+ ~  _* ~  RSQUARE ) | unescapedAnnotation ) ~  _* ~  NL*
}
 _ = {
	 ( WS | DelimitedComment | LineComment )+
}
 packageHeader = {
	 PACKAGE ~  _ ~  identifier ~  _* ~  semi?
}
 importList = {
	 importHeader+
}
 filePart = {
	 topLevelObject
	| ( statement ~  _* ~  semi )
}
 unparsable = {
	 ( ! [\n] ~ ANY )+ ~  NL*
}
 EOF = {
	 !ANY
}
 topLevelObject = {
	 declaration ~  _* ~  semis?
}
 statement = {
	 ( label | annotation )* ~  ( declaration | assignment | loopStatement | expression )
}
 semi = {
	 _* ~  ( SEMICOLON | NL ) ~  _* ~  NL*
}
 ShebangLine = {
	"#!"  ~  ( ! [\r\n] ~ ANY )*
}
 AT_NO_WS = {
	"@" 
}
 AT_PRE_WS = {
	 ( Hidden | NL ) ~ "@" 
}
 FILE = {
	"file"  ~  ! ( Letter | UnicodeDigit )
}
 COLON = {
	":" 
}
 LSQUARE = {
	"[" 
}
 unescapedAnnotation = {
	 constructorInvocation
	| userType
}
 RSQUARE = {
	"]" 
}
 PACKAGE = {
	"package"  ~  ! ( Letter | UnicodeDigit )
}
 identifier = {
	 simpleIdentifier ~  ( __* ~  DOT ~  simpleIdentifier )*
}
 importHeader = {
	 IMPORT ~  _ ~  identifier ~  ( ( DOT ~  MULT ) | importAlias )? ~  _* ~  semi? ~  _*
}
 IMPORT = {
	"import"  ~  ! ( Letter | UnicodeDigit )
}
 DOT = {
	"." 
}
 MULT = {
	"*" 
}
 importAlias = {
	 _ ~  AS ~  _ ~  simpleIdentifier
}
 AS = {
	"as"  ~  ! ( Letter | UnicodeDigit )
}
 simpleIdentifier = {
	 ( ! ( hardKeyword ~  ! ( Letter |"_"  | UnicodeDigit ) ) ~  Identifier )
	| ABSTRACT
	| ANNOTATION
	| BY
	| CATCH
	| COMPANION
	| CONSTRUCTOR
	| CROSSINLINE
	| DATA
	| DYNAMIC
	| ENUM
	| EXTERNAL
	| FINAL
	| FINALLY
	| GET
	| IMPORT
	| INFIX
	| INIT
	| INLINE
	| INNER
	| INTERNAL
	| LATEINIT
	| NOINLINE
	| OPEN
	| OPERATOR
	| OUT
	| OVERRIDE
	| PRIVATE
	| PROTECTED
	| PUBLIC
	| REIFIED
	| SEALED
	| TAILREC
	| SET
	| VARARG
	| WHERE
	| FIELD
	| PROPERTY
	| RECEIVER
	| PARAM
	| SETPARAM
	| DELEGATE
	| FILE
	| EXPECT
	| ACTUAL
	| CONST
	| SUSPEND
}
 declaration = {
	 classDeclaration
	| objectDeclaration
	| functionDeclaration
	| propertyDeclaration
	| typeAlias
}
 semis = {
	 ( _* ~  ( SEMICOLON | NL ) ~  _* )+
}
 typeAlias = {
	 modifiers? ~  _* ~  TYPE_ALIAS ~  ( _ | NL )* ~  simpleIdentifier ~  _* ~  ( __* ~  typeParameters )? ~  __* ~  ASSIGNMENT ~  __* ~  type
}
 modifiers = {
	 ( annotation | modifier )+
}
 TYPE_ALIAS = {
	"typealias"  ~  ! ( Letter | UnicodeDigit )
}
 __ = {
	 ( [ \t\f\r\n] | DelimitedComment | LineComment )+
}
 typeParameters = {
	 LANGLE ~  __* ~  typeParameter ~  ( __* ~  COMMA ~  __* ~  typeParameter )* ~  ( __* ~  COMMA )? ~  __* ~  RANGLE
}
 ASSIGNMENT = {
	"="  ~  !"=" 
}
 type = {
	 typeModifiers? ~  ( functionType | nullableType | parenthesizedType | typeReference )
}
 classDeclaration = {
	 modifiers? ~  ( CLASS | ( ( FUN ~  __* )? ~  INTERFACE ) ) ~  _ ~  NL* ~  simpleIdentifier ~  ( __* ~  typeParameters )? ~  ( __* ~  primaryConstructor )? ~  ( __* ~  COLON ~  __* ~  delegationSpecifiers )? ~  ( __* ~  typeConstraints )? ~  ( ( __* ~  classBody ) | ( __* ~  enumClassBody ) )?
}
 objectDeclaration = {
	 modifiers? ~  _* ~  OBJECT ~  __* ~  simpleIdentifier ~  ( __* ~  COLON ~  __* ~  delegationSpecifiers )? ~  ( __* ~  classBody )?
}
 functionDeclaration = {
	 modifiers? ~  _* ~  FUN ~  _* ~  ( __* ~  typeParameters )? ~  _* ~  ( __* ~  receiverTypeAndDot )? ~  __* ~  simpleIdentifier ~  __* ~  functionValueParameters ~  _* ~  ( __* ~  COLON ~  __* ~  type )? ~  _* ~  ( __* ~  typeConstraints )? ~  _* ~  ( __* ~  functionBody )?
}
 propertyDeclaration = {
	 modifiers? ~  _* ~  ( VAL | VAR ) ~  _ ~  ( __* ~  typeParameters )? ~  ( __* ~  receiverTypeAndDot )? ~  ( __* ~  ( multiVariableDeclaration | variableDeclaration ) ) ~  ( __* ~  typeConstraints )? ~  ( __* ~  ( ( ASSIGNMENT ~  __* ~  expression ) | propertyDelegate ) )? ~  ( ( semi? ~  _* ~  setter ~  ( NL* ~  semi? ~  _* ~  getter )? ) | ( semi? ~  _* ~  getter ~  ( NL* ~  semi? ~  _* ~  setter )? ) )?
}
 CLASS = {
	"class"  ~  ! ( Letter | UnicodeDigit )
}
 FUN = {
	"fun"  ~  ! ( Letter | UnicodeDigit )
}
 INTERFACE = {
	"interface"  ~  ! ( Letter | UnicodeDigit )
}
 primaryConstructor = {
	 ( modifiers? ~  CONSTRUCTOR ~  __* )? ~  classParameters
}
 delegationSpecifiers = {
	 annotatedDelegationSpecifier ~  ( __* ~  COMMA ~  __* ~  annotatedDelegationSpecifier )*
}
 typeConstraints = {
	 WHERE ~  __* ~  typeConstraint ~  ( __* ~  COMMA ~  __* ~  typeConstraint )*
}
 classBody = {
	 LCURL ~  __* ~  classMemberDeclarations ~  __* ~  RCURL
}
 enumClassBody = {
	 LCURL ~  __* ~  enumEntries? ~  ( __* ~  SEMICOLON ~  __* ~  classMemberDeclarations )? ~  __* ~  RCURL
}
 CONSTRUCTOR = {
	"constructor"  ~  ! ( Letter | UnicodeDigit )
}
 classParameters = {
	 LPAREN ~  __* ~  ( classParameter ~  ( __* ~  COMMA ~  __* ~  classParameter )* ~  ( __* ~  COMMA )? )? ~  __* ~  RPAREN
}
 LCURL = {
	"{" 
}
 classMemberDeclarations = {
	 ( classMemberDeclaration ~  semis? )*
}
 RCURL = {
	"}" 
}
 LPAREN = {
	"(" 
}
 classParameter = {
	 ( ( modifiers? ~  _* ~  VAL ) | ( modifiers? ~  _* ~  VAR ) | ( modifiers? ~  _* ) )? ~  __* ~  simpleIdentifier ~  _* ~  COLON ~  __* ~  type ~  ( __* ~  ASSIGNMENT ~  __* ~  expression )?
}
 COMMA = {
	"," 
}
 RPAREN = {
	")" 
}
 VAL = {
	"val"  ~  ! ( Letter | UnicodeDigit )
}
 VAR = {
	"var"  ~  ! ( Letter | UnicodeDigit )
}
 expression = {
	 disjunction
}
 annotatedDelegationSpecifier = {
	 annotation* ~  __* ~  delegationSpecifier
}
 delegationSpecifier = {
	 constructorInvocation
	| explicitDelegation
	| userType
	| functionType
}
 constructorInvocation = {
	 userType ~  _* ~  valueArguments
}
 explicitDelegation = {
	 ( userType | functionType ) ~  __* ~  BY ~  __* ~  expression
}
 userType = {
	 simpleUserType ~  ( __* ~  DOT ~  __* ~  simpleUserType )*
}
 functionType = {
	 ( receiverType ~  __* ~  DOT ~  __* )? ~  functionTypeParameters ~  __* ~  ARROW ~  __* ~  type
}
 valueArguments = {
	 ( LPAREN ~  __* ~  RPAREN )
	| ( LPAREN ~  __* ~  inside_valueArgument ~  ( __* ~  COMMA ~  __* ~  inside_valueArgument )* ~  ( __* ~  COMMA )? ~  __* ~  RPAREN )
}
 annotation = {
	 ( singleAnnotation | multiAnnotation ) ~  __*
}
 BY = {
	"by"  ~  ! ( Letter | UnicodeDigit )
}
 LANGLE = {
	"<" 
}
 typeParameter = {
	 typeParameterModifiers? ~  __* ~  simpleIdentifier ~  ( __* ~  COLON ~  __* ~  type )?
}
 RANGLE = {
	">" 
}
 typeParameterModifiers = {
	 typeParameterModifier+
}
 WHERE = {
	"where"  ~  ! ( Letter | UnicodeDigit )
}
 typeConstraint = {
	 annotation* ~  simpleIdentifier ~  __* ~  COLON ~  __* ~  type
}
 classMemberDeclaration = {
	 secondaryConstructor
	| anonymousInitializer
	| companionObject
	| declaration
}
 secondaryConstructor = {
	 modifiers? ~  CONSTRUCTOR ~  __* ~  functionValueParameters ~  ( __* ~  COLON ~  __* ~  constructorDelegationCall )? ~  __* ~  block?
}
 anonymousInitializer = {
	 INIT ~  __* ~  block
}
 companionObject = {
	 modifiers? ~  COMPANION ~  __* ~  OBJECT ~  ( __* ~  simpleIdentifier )? ~  ( __* ~  COLON ~  __* ~  delegationSpecifiers )? ~  ( __* ~  classBody )?
}
 INIT = {
	"init"  ~  ! ( Letter | UnicodeDigit )
}
 block = {
	 LCURL ~  __* ~  statements ~  __* ~  RCURL
}
 COMPANION = {
	"companion"  ~  ! ( Letter | UnicodeDigit )
}
 OBJECT = {
	"object"  ~  ! ( Letter | UnicodeDigit )
}
 functionValueParameters = {
	 LPAREN ~  __* ~  ( functionValueParameter ~  ( __* ~  COMMA ~  __* ~  functionValueParameter )* ~  ( __* ~  COMMA )? )? ~  __* ~  RPAREN
}
 functionValueParameter = {
	 parameterModifiers? ~  _* ~  parameter ~  ( __* ~  ASSIGNMENT ~  __* ~  expression )?
}
 parameterModifiers = {
	 ( annotation | parameterModifier )+
}
 parameter = {
	 simpleIdentifier ~  __* ~  COLON ~  __* ~  type
}
 receiverTypeAndDot = {
	 ( typeModifiers ~  _* )? ~  ( ( nullableType ~  __* ~  DOT ~  __* ) | ( parenthesizedType ~  __* ~  DOT ~  __* ) | ( simpleUserType ~  __* ~  DOT ~  __* )+ )
}
 functionBody = {
	 block
	| ( ASSIGNMENT ~  __* ~  expression )
}
 variableDeclaration = {
	 annotation* ~  __* ~  simpleIdentifier ~  ( __* ~  COLON ~  __* ~  type )?
}
 multiVariableDeclaration = {
	 LPAREN ~  __* ~  variableDeclaration ~  _* ~  ( __* ~  COMMA ~  __* ~  variableDeclaration )* ~  _* ~  ( __* ~  COMMA )? ~  __* ~  RPAREN
}
 propertyDelegate = {
	 BY ~  __* ~  expression
}
 setter = {
	 ( ( modifiers ~  _* )? ~  SET ~  __* ~  LPAREN ~  __* ~  parameterWithOptionalType ~  ( __* ~  COMMA )? ~  __* ~  RPAREN ~  ( __* ~  COLON ~  __* ~  type )? ~  __* ~  functionBody )
	| ( ( modifiers ~  _* )? ~  SET ~  ! ( _* ~  ( ! [;\r\n] ~ ANY ) ) )
}
 getter = {
	 ( ( modifiers ~  _* )? ~  GET ~  __* ~  LPAREN ~  __* ~  RPAREN ~  ( __* ~  COLON ~  __* ~  type )? ~  __* ~  functionBody )
	| ( ( modifiers ~  _* )? ~  GET ~  ! ( _* ~  ( ! [;\r\n] ~ ANY ) ) )
}
 GET = {
	"get"  ~  ! ( Letter | UnicodeDigit )
}
 SET = {
	"set"  ~  ! ( Letter | UnicodeDigit )
}
 parameterWithOptionalType = {
	 parameterModifiers? ~  simpleIdentifier ~  __* ~  ( COLON ~  __* ~  type )?
}
 parametersWithOptionalType = {
	 LPAREN ~  __* ~  ( parameterWithOptionalType ~  ( __* ~  COMMA ~  __* ~  parameterWithOptionalType )* ~  ( __* ~  COMMA )? )? ~  __* ~  RPAREN
}
 constructorDelegationCall = {
	 ( THIS ~  __* ~  valueArguments )
	| ( SUPER ~  __* ~  valueArguments )
}
 THIS = {
	"this"  ~  ! ( Letter | UnicodeDigit )
}
 SUPER = {
	"super"  ~  ! ( Letter | UnicodeDigit )
}
 enumEntries = {
	 enumEntry ~  ( __* ~  COMMA ~  __* ~  enumEntry )* ~  __* ~  COMMA?
}
 SEMICOLON = {
	";" 
}
 enumEntry = {
	 ( modifiers ~  __* )? ~  simpleIdentifier ~  ( __* ~  valueArguments )? ~  ( __* ~  classBody )?
}
 typeModifiers = {
	 typeModifier+
}
 nullableType = {
	 ( typeReference | parenthesizedType ) ~  __* ~  quest+
}
 parenthesizedType = {
	 LPAREN ~  __* ~  type ~  __* ~  RPAREN
}
 typeReference = {
	 userType
	| DYNAMIC
}
 DYNAMIC = {
	"dynamic"  ~  ! ( Letter | UnicodeDigit )
}
 quest = {
	 ! elvis ~  ( QUEST_WS | QUEST_NO_WS )
}
 elvis = {
	 QUEST_NO_WS ~  COLON
}
 QUEST_WS = {
	"?"  ~  Hidden
}
 QUEST_NO_WS = {
	"?" 
}
 simpleUserType = {
	 simpleIdentifier ~  ( __* ~  typeArguments )?
}
 typeArguments = {
	 LANGLE ~  __* ~  typeProjection ~  ( __* ~  COMMA ~  __* ~  typeProjection )* ~  ( __* ~  COMMA )? ~  __* ~  RANGLE
}
 typeProjection = {
	 ( typeProjectionModifiers? ~  type )
	| MULT
}
 typeProjectionModifiers = {
	 typeProjectionModifier+
}
 typeProjectionModifier = {
	 ( varianceModifier ~  __* )
	| annotation
}
 varianceModifier = {
	 IN
	| OUT
}
 receiverType = {
	 ( typeModifiers ~  _* )? ~  ( nullableType | parenthesizedType | typeReference )
}
 functionTypeParameters = {
	 LPAREN ~  __* ~  ( parameter | type )? ~  _* ~  ( __* ~  COMMA ~  __* ~  ( parameter | type ) )* ~  _* ~  ( __* ~  COMMA )? ~  __* ~  RPAREN
}
 ARROW = {
	"->" 
}
 statements = {
	 ( statement ~  _* ~  ( semis ~  _* ~  statement ~  _* )* )? ~  _* ~  semis?
}
 label = {
	 simpleIdentifier ~  ( AT_POST_WS | AT_NO_WS ) ~  __*
}
 assignment = {
	 ( directlyAssignableExpression ~  _* ~  ASSIGNMENT ~  __* ~  expression )
	| ( assignableExpression ~  _* ~  assignmentAndOperator ~  __* ~  expression )
}
 loopStatement = {
	 forStatement
	| whileStatement
	| doWhileStatement
}
 AT_POST_WS = {
	"@"  ~  ( Hidden | NL )
}
 controlStructureBody = {
	 block
	| statement
}
 forStatement = {
	 FOR ~  __* ~  LPAREN ~  _* ~  annotation* ~  _* ~  ( variableDeclaration | multiVariableDeclaration ) ~  _ ~  IN ~  _ ~  inside_expression ~  _* ~  RPAREN ~  __* ~  controlStructureBody?
}
 whileStatement = {
	 ( WHILE ~  __* ~  LPAREN ~  _* ~  inside_expression ~  _* ~  RPAREN ~  __* ~  controlStructureBody )
	| ( WHILE ~  __* ~  LPAREN ~  _* ~  expression ~  _* ~  RPAREN ~  __* ~  SEMICOLON )
}
 doWhileStatement = {
	 DO ~  __* ~  controlStructureBody? ~  __* ~  WHILE ~  __* ~  LPAREN ~  _* ~  expression ~  _* ~  RPAREN
}
 FOR = {
	"for"  ~  ! ( Letter | UnicodeDigit )
}
 IN = {
	"in"  ~  ! ( Letter | UnicodeDigit )
}
 inside_expression = {
	 inside_disjunction
}
 WHILE = {
	"while"  ~  ! ( Letter | UnicodeDigit )
}
 DO = {
	"do"  ~  ! ( Letter | UnicodeDigit )
}
 directlyAssignableExpression = {
	 ( postfixUnaryExpression ~  _* ~  assignableSuffix )
	| postfixUnaryExpression
	| simpleIdentifier
	| parenthesizedDirectlyAssignableExpression
}
 assignableExpression = {
	 prefixUnaryExpression
	| parenthesizedAssignableExpression
}
 assignmentAndOperator = {
	 ADD_ASSIGNMENT
	| SUB_ASSIGNMENT
	| MULT_ASSIGNMENT
	| DIV_ASSIGNMENT
	| MOD_ASSIGNMENT
}
 disjunction = {
	 conjunction ~  ( __* ~  DISJ ~  __* ~  conjunction )*
}
 conjunction = {
	 equality ~  ( __* ~  CONJ ~  __* ~  equality )*
}
 DISJ = {
	"||" 
}
 equality = {
	 comparison ~  ( _* ~  equalityOperator ~  __* ~  comparison ~  _* )*
}
 CONJ = {
	"&&" 
}
 comparison = {
	 genericCallLikeComparison ~  ( _* ~  comparisonOperator ~  __* ~  genericCallLikeComparison ~  _* )*
}
 equalityOperator = {
	 EQEQEQ
	| EQEQ
	| EXCL_EQEQ
	| EXCL_EQ
}
 genericCallLikeComparison = {
	 infixOperation ~  ( _* ~  callSuffix )*
}
 comparisonOperator = {
	 LE
	| GE
	| LANGLE
	| RANGLE
}
 infixOperation = {
	 elvisExpression ~  ( ( _* ~  inOperator ~  __* ~  elvisExpression ) | ( _* ~  isOperator ~  __* ~  type ) )*
}
 callSuffix = {
	 ( typeArguments? ~  _* ~  valueArguments? ~  _* ~  annotatedLambda )
	| ( typeArguments? ~  _* ~  valueArguments )
}
 elvisExpression = {
	 infixFunctionCall ~  ( __* ~  elvis ~  __* ~  infixFunctionCall )*
}
 inOperator = {
	 IN
	| NOT_IN
}
 isOperator = {
	 IS
	| NOT_IS
}
 infixFunctionCall = {
	 rangeExpression ~  ( _* ~  simpleIdentifier ~  __* ~  rangeExpression )*
}
 rangeExpression = {
	 additiveExpression ~  ( _* ~  RANGE ~  __* ~  additiveExpression )*
}
 additiveExpression = {
	 multiplicativeExpression ~  ( _* ~  additiveOperator ~  __* ~  multiplicativeExpression )*
}
 RANGE = {
	".." 
}
 multiplicativeExpression = {
	 asExpression ~  ( _* ~  multiplicativeOperator ~  __* ~  asExpression )*
}
 additiveOperator = {
	 ADD
	| SUB
}
 asExpression = {
	 prefixUnaryExpression ~  ( __* ~  asOperator ~  __* ~  type )*
}
 multiplicativeOperator = {
	 MULT
	| DIV
	| MOD
}
 prefixUnaryExpression = {
	 ( unaryPrefix ~  _* )* ~  postfixUnaryExpression
}
 asOperator = {
	 AS_SAFE
	| AS
}
 unaryPrefix = {
	 annotation
	| label
	| ( prefixUnaryOperator ~  __* )
}
 postfixUnaryExpression = {
	 ( primaryExpression ~  ( _* ~  postfixUnarySuffix )+ )
	| primaryExpression
}
 prefixUnaryOperator = {
	 INCR
	| DECR
	| SUB
	| ADD
	| excl
}
 primaryExpression = {
	 thisExpression
	| superExpression
	| ifExpression
	| whenExpression
	| tryExpression
	| jumpExpression
	| parenthesizedExpression
	| callableReference
	| stringLiteral
	| functionLiteral
	| objectLiteral
	| collectionLiteral
	| simpleIdentifier
	| literalConstant
}
 postfixUnarySuffix = {
	 postfixUnaryOperator
	| typeArguments
	| callSuffix
	| indexingSuffix
	| navigationSuffix
}
 postfixUnaryOperator = {
	 INCR
	| DECR
	| ( EXCL_NO_WS ~  excl )
}
 indexingSuffix = {
	 LSQUARE ~  __* ~  inside_expression ~  ( __* ~  COMMA ~  __* ~  inside_expression )* ~  ( __* ~  COMMA )? ~  __* ~  RSQUARE
}
 navigationSuffix = {
	 __* ~  memberAccessOperator ~  __* ~  ( simpleIdentifier | parenthesizedExpression | CLASS )
}
 assignableSuffix = {
	 navigationSuffix
	| typeArguments
	| indexingSuffix
}
 parenthesizedDirectlyAssignableExpression = {
	 LPAREN ~  __* ~  inside_directlyAssignableExpression ~  __* ~  RPAREN
}
 inside_directlyAssignableExpression = {
	 ( inside_postfixUnaryExpression ~  ( _ | NL )* ~  assignableSuffix )
	| inside_postfixUnaryExpression
	| simpleIdentifier
	| parenthesizedDirectlyAssignableExpression
}
 parenthesizedAssignableExpression = {
	 LPAREN ~  __* ~  inside_assignableExpression ~  __* ~  RPAREN
}
 inside_assignableExpression = {
	 inside_prefixUnaryExpression
	| parenthesizedAssignableExpression
}
 memberAccessOperator = {
	 DOT
	| safeNav
	| COLONCOLON
}
 parenthesizedExpression = {
	 LPAREN ~  __* ~  inside_expression ~  __* ~  RPAREN
}
 annotatedLambda = {
	 annotation* ~  _* ~  label? ~  __* ~  lambdaLiteral
}
 lambdaLiteral = {
	 ( LCURL ~  __* ~  statements ~  __* ~  RCURL )
	| ( LCURL ~  __* ~  lambdaParameters? ~  __* ~  ARROW ~  __* ~  statements ~  __* ~  RCURL )
}
 inside_valueArgument = {
	 annotation? ~  __* ~  ( simpleIdentifier ~  __* ~  ASSIGNMENT ~  __* )? ~  MULT? ~  __* ~  inside_expression
}
 thisExpression = {
	 THIS_AT
	| ( THIS ~  ! ( Letter | UnicodeDigit ) )
}
 superExpression = {
	 SUPER_AT
	| ( SUPER ~  ( LANGLE ~  __* ~  type ~  __* ~  RANGLE )? ~  ( AT_NO_WS ~  simpleIdentifier )? )
}
 ifExpression = {
	 ( IF ~  __* ~  LPAREN ~  __* ~  expression ~  __* ~  RPAREN ~  __* ~  controlStructureBody? ~  __* ~  SEMICOLON? ~  __* ~  ELSE ~  __* ~  ( controlStructureBody | SEMICOLON ) )
	| ( IF ~  __* ~  LPAREN ~  __* ~  expression ~  __* ~  RPAREN ~  __* ~  ( controlStructureBody | SEMICOLON ) )
}
 whenExpression = {
	 WHEN ~  __* ~  whenSubject? ~  __* ~  LCURL ~  __* ~  ( whenEntry ~  __* )* ~  __* ~  RCURL
}
 tryExpression = {
	 TRY ~  __* ~  block ~  ( ( ( __* ~  catchBlock )+ ~  ( __* ~  finallyBlock )? ) | ( __* ~  finallyBlock ) )
}
 jumpExpression = {
	 ( THROW ~  __* ~  expression )
	| ( ( RETURN_AT | RETURN ) ~  _* ~  expression? )
	| CONTINUE_AT
	| CONTINUE
	| BREAK_AT
	| BREAK
}
 callableReference = {
	 receiverType? ~  __* ~  COLONCOLON ~  __* ~  ( simpleIdentifier | CLASS )
}
 stringLiteral = {
	 multiLineStringLiteral
	| lineStringLiteral
}
 functionLiteral = {
	 lambdaLiteral
	| anonymousFunction
}
 objectLiteral = {
	 ( OBJECT ~  __* ~  COLON ~  __* ~  delegationSpecifiers ~  __* ~  classBody )
	| ( OBJECT ~  __* ~  classBody )
}
 collectionLiteral = {
	 ( LSQUARE ~  __* ~  inside_expression ~  ( __* ~  COMMA ~  __* ~  inside_expression )* ~  ( __* ~  COMMA )? ~  __* ~  RSQUARE )
	| ( LSQUARE ~  __* ~  RSQUARE )
}
 literalConstant = {
	 BooleanLiteral
	| CharacterLiteral
	| NullLiteral
	| RealLiteral
	| UnsignedLiteral
	| LongLiteral
	| HexLiteral
	| BinLiteral
	| IntegerLiteral
}
 BooleanLiteral = {
	"true" 
	|"false" 
}
 CharacterLiteral = {
	"\'"  ~  ( EscapeSeq | ( ! [\n\r'\\] ~ ANY ) ) ~ "\'" 
}
 NullLiteral = {
	"null" 
}
 RealLiteral = {
	 FloatLiteral
	| DoubleLiteral
}
 UnsignedLiteral = {
	 ( HexLiteral | BinLiteral | IntegerLiteral ) ~  [uU] ~  [lL]?
}
 LongLiteral = {
	 ( HexLiteral | BinLiteral | IntegerLiteral ) ~  [lL]
}
 HexLiteral = {
	 ("0"  ~  [xX] ~  HexDigit ~  HexDigitOrSeparator* )
	| ("0"  ~  [xX] ~  HexDigit )
}
 BinLiteral = {
	 ("0"  ~  [bB] ~  BinDigit ~  BinDigitOrSeparator* )
	| ("0"  ~  [bB] ~  BinDigit )
}
 IntegerLiteral = {
	 ( DecDigitNoZero ~  DecDigitOrSeparator* )
	| DecDigit
}
 multiLineStringLiteral = {
	 TRIPLE_QUOTE_OPEN ~  ( multiLineStringExpression | multiLineStringContent | MultiLineStringQuote )* ~  TRIPLE_QUOTE_CLOSE
}
 lineStringLiteral = {
	 QUOTE_OPEN ~  ( lineStringExpression | lineStringContent )* ~  QUOTE_CLOSE
}
 QUOTE_OPEN = {
	"\""  ~  !"\"\"" 
}
 lineStringExpression = {
	 LineStrExprStart ~  __* ~  expression ~  __* ~  RCURL
}
 lineStringContent = {
	 LineStrText
	| LineStrEscapedChar
	| LineStrRef
}
 QUOTE_CLOSE = {
	"\"" 
}
 TRIPLE_QUOTE_OPEN = {
	"\"\"\"" 
}
 multiLineStringExpression = {
	 MultiLineStrExprStart ~  __* ~  expression ~  __* ~  RCURL
}
 multiLineStringContent = {
	 MultiLineStrRef
	| MultiLineStrText
	| MultiLineStringQuote
}
 MultiLineStringQuote = {
	 ("\"\""  ~  !"\""  )
	| ("\""  ~  !"\"\""  )
}
 TRIPLE_QUOTE_CLOSE = {
	"\"\"\"\"\"" 
	|"\"\"\"\"" 
	|"\"\"\"" 
}
 LineStrText = {
	 ( ! [\\"$] ~ ANY )+
	|"$" 
}
 LineStrEscapedChar = {
	 EscapedIdentifier
	| UniCharacterLiteral
}
 LineStrRef = {
	 FieldIdentifier
}
 LineStrExprStart = {
	"${" 
}
 MultiLineStrRef = {
	 FieldIdentifier
}
 MultiLineStrText = {
	 ( ! ["$] ~ ANY )+
	|"$" 
}
 MultiLineStrExprStart = {
	"${" 
}
 inside_disjunction = {
	 inside_conjunction ~  ( __* ~  DISJ ~  __* ~  inside_conjunction )*
}
 inside_conjunction = {
	 inside_equality ~  ( __* ~  CONJ ~  __* ~  inside_equality )*
}
 inside_equality = {
	 inside_comparison ~  ( ( _ | NL )* ~  equalityOperator ~  __* ~  inside_comparison ~  ( _ | NL )* )*
}
 inside_comparison = {
	 inside_genericCallLikeComparison ~  ( ( _ | NL )* ~  comparisonOperator ~  __* ~  inside_genericCallLikeComparison ~  ( _ | NL )* )*
}
 inside_genericCallLikeComparison = {
	 inside_infixOperation ~  ( ( _ | NL )* ~  callSuffix )*
}
 inside_infixOperation = {
	 inside_elvisExpression ~  ( ( ( _ | NL )* ~  inOperator ~  __* ~  inside_elvisExpression ) | ( ( _ | NL )* ~  isOperator ~  __* ~  type ) )*
}
 inside_elvisExpression = {
	 inside_infixFunctionCall ~  ( __* ~  elvis ~  __* ~  inside_infixFunctionCall )*
}
 inside_infixFunctionCall = {
	 inside_rangeExpression ~  ( ( _ | NL )* ~  simpleIdentifier ~  __* ~  inside_rangeExpression )*
}
 inside_rangeExpression = {
	 inside_additiveExpression ~  ( ( _ | NL )* ~  RANGE ~  __* ~  inside_additiveExpression )*
}
 inside_additiveExpression = {
	 inside_multiplicativeExpression ~  ( ( _ | NL )* ~  additiveOperator ~  __* ~  inside_multiplicativeExpression )*
}
 inside_multiplicativeExpression = {
	 inside_asExpression ~  ( ( _ | NL )* ~  multiplicativeOperator ~  __* ~  inside_asExpression )*
}
 inside_asExpression = {
	 inside_prefixUnaryExpression ~  ( __* ~  asOperator ~  __* ~  type )*
}
 inside_prefixUnaryExpression = {
	 ( inside_unaryPrefix ~  ( _ | NL )* )* ~  inside_postfixUnaryExpression
}
 inside_unaryPrefix = {
	 annotation
	| label
	| ( prefixUnaryOperator ~  __* )
}
 inside_postfixUnaryExpression = {
	 ( primaryExpression ~  ( ( _ | NL )* ~  inside_postfixUnarySuffix )+ )
	| primaryExpression
}
 inside_postfixUnarySuffix = {
	 postfixUnaryOperator
	| typeArguments
	| callSuffix
	| indexingSuffix
	| navigationSuffix
}
 lambdaParameters = {
	 lambdaParameter ~  ( __* ~  COMMA ~  __* ~  lambdaParameter )* ~  ( __* ~  COMMA )?
}
 lambdaParameter = {
	 variableDeclaration
	| ( multiVariableDeclaration ~  ( __* ~  COLON ~  __* ~  type )? )
}
 anonymousFunction = {
	 FUN ~  ( __* ~  type ~  __* ~  DOT )? ~  __* ~  parametersWithOptionalType ~  ( __* ~  COLON ~  __* ~  type )? ~  ( __* ~  typeConstraints )? ~  ( __* ~  functionBody )?
}
 THIS_AT = {
	"this@"  ~  Identifier
}
 Letter = {
	 [a-zA-Z]
}
 UnicodeDigit = {
	 [0-9]
}
 SUPER_AT = {
	"super@"  ~  Identifier
}
 IF = {
	"if"  ~  ! ( Letter | UnicodeDigit )
}
 ELSE = {
	"else"  ~  ! ( Letter | UnicodeDigit )
}
 whenSubject = {
	 LPAREN ~  ( annotation* ~  __* ~  VAL ~  __* ~  variableDeclaration ~  __* ~  ASSIGNMENT ~  __* )? ~  expression ~  RPAREN
}
 WHEN = {
	"when"  ~  ! ( Letter | UnicodeDigit )
}
 whenEntry = {
	 ( whenCondition ~  ( __* ~  COMMA ~  __* ~  whenCondition )* ~  ( __* ~  COMMA )? ~  __* ~  ARROW ~  __* ~  controlStructureBody ~  semi? )
	| ( ELSE ~  __* ~  ARROW ~  __* ~  controlStructureBody ~  semi? )
}
 whenCondition = {
	 expression
	| rangeTest
	| typeTest
}
 rangeTest = {
	 inOperator ~  __* ~  expression
}
 typeTest = {
	 isOperator ~  __* ~  type
}
 TRY = {
	"try"  ~  ! ( Letter | UnicodeDigit )
}
 catchBlock = {
	 CATCH ~  __* ~  LPAREN ~  _* ~  ( annotation ~  _* )* ~  simpleIdentifier ~  _* ~  COLON ~  _* ~  type ~  ( __* ~  COMMA )? ~  _* ~  RPAREN ~  __* ~  block
}
 finallyBlock = {
	 FINALLY ~  __* ~  block
}
 CATCH = {
	"catch"  ~  ! ( Letter | UnicodeDigit )
}
 FINALLY = {
	"finally"  ~  ! ( Letter | UnicodeDigit )
}
 THROW = {
	"throw"  ~  ! ( Letter | UnicodeDigit )
}
 RETURN_AT = {
	"return@"  ~  Identifier
}
 RETURN = {
	"return"  ~  ! ( Letter | UnicodeDigit )
}
 CONTINUE_AT = {
	"continue@"  ~  Identifier
}
 CONTINUE = {
	"continue"  ~  ! ( Letter | UnicodeDigit )
}
 BREAK_AT = {
	"break@"  ~  Identifier
}
 BREAK = {
	"break"  ~  ! ( Letter | UnicodeDigit )
}
 COLONCOLON = {
	"::" 
}
 ADD_ASSIGNMENT = {
	"+=" 
}
 SUB_ASSIGNMENT = {
	"-=" 
}
 MULT_ASSIGNMENT = {
	"*=" 
}
 DIV_ASSIGNMENT = {
	"/=" 
}
 MOD_ASSIGNMENT = {
	"%=" 
}
 EQEQEQ = {
	"===" 
}
 EQEQ = {
	"==" 
}
 EXCL_EQEQ = {
	"!==" 
}
 EXCL_EQ = {
	"!=" 
}
 LE = {
	"<=" 
}
 GE = {
	">=" 
}
 NOT_IN = {
	"!in"  ~  ! ( Letter | UnicodeDigit )
}
 IS = {
	"is"  ~  ! ( Letter | UnicodeDigit )
}
 NOT_IS = {
	"!is"  ~  ! ( Letter | UnicodeDigit )
}
 ADD = {
	"+" 
}
 SUB = {
	"-" 
}
 DIV = {
	"/" 
}
 MOD = {
	"%" 
}
 AS_SAFE = {
	"as?" 
}
 INCR = {
	"++" 
}
 DECR = {
	"--" 
}
 excl = {
	 EXCL_WS
	| EXCL_NO_WS
}
 EXCL_NO_WS = {
	"!" 
}
 EXCL_WS = {
	"!"  ~  Hidden
}
 safeNav = {
	 QUEST_NO_WS ~  DOT
}
 modifier = {
	 ( classModifier | memberModifier | visibilityModifier | functionModifier | propertyModifier | inheritanceModifier | parameterModifier | platformModifier ) ~  __*
}
 parameterModifier = {
	 VARARG
	| NOINLINE
	| CROSSINLINE
}
 classModifier = {
	 ENUM
	| SEALED
	| ANNOTATION
	| DATA
	| INNER
}
 memberModifier = {
	 OVERRIDE
	| LATEINIT
}
 visibilityModifier = {
	 PUBLIC
	| PRIVATE
	| INTERNAL
	| PROTECTED
}
 functionModifier = {
	 TAILREC
	| OPERATOR
	| INFIX
	| INLINE
	| EXTERNAL
	| SUSPEND
}
 propertyModifier = {
	 CONST
}
 inheritanceModifier = {
	 ABSTRACT
	| FINAL
	| OPEN
}
 platformModifier = {
	 EXPECT
	| ACTUAL
}
 typeModifier = {
	 annotation
	| ( SUSPEND ~  __* )
}
 SUSPEND = {
	"suspend"  ~  ! ( Letter | UnicodeDigit )
}
 ENUM = {
	"enum"  ~  ! ( Letter | UnicodeDigit )
}
 SEALED = {
	"sealed"  ~  ! ( Letter | UnicodeDigit )
}
 ANNOTATION = {
	"annotation"  ~  ! ( Letter | UnicodeDigit )
}
 DATA = {
	"data"  ~  ! ( Letter | UnicodeDigit )
}
 INNER = {
	"inner"  ~  ! ( Letter | UnicodeDigit )
}
 OVERRIDE = {
	"override"  ~  ! ( Letter | UnicodeDigit )
}
 LATEINIT = {
	"lateinit"  ~  ! ( Letter | UnicodeDigit )
}
 PUBLIC = {
	"public"  ~  ! ( Letter | UnicodeDigit )
}
 PRIVATE = {
	"private"  ~  ! ( Letter | UnicodeDigit )
}
 INTERNAL = {
	"internal"  ~  ! ( Letter | UnicodeDigit )
}
 PROTECTED = {
	"protected"  ~  ! ( Letter | UnicodeDigit )
}
 OUT = {
	"out"  ~  ! ( Letter | UnicodeDigit )
}
 typeParameterModifier = {
	 ( reificationModifier ~  __* )
	| ( varianceModifier ~  __* )
	| annotation
}
 reificationModifier = {
	 REIFIED
}
 TAILREC = {
	"tailrec"  ~  ! ( Letter | UnicodeDigit )
}
 OPERATOR = {
	"operator"  ~  ! ( Letter | UnicodeDigit )
}
 INFIX = {
	"infix"  ~  ! ( Letter | UnicodeDigit )
}
 INLINE = {
	"inline"  ~  ! ( Letter | UnicodeDigit )
}
 EXTERNAL = {
	"external"  ~  ! ( Letter | UnicodeDigit )
}
 CONST = {
	"const"  ~  ! ( Letter | UnicodeDigit )
}
 ABSTRACT = {
	"abstract"  ~  ! ( Letter | UnicodeDigit )
}
 FINAL = {
	"final"  ~  ! ( Letter | UnicodeDigit )
}
 OPEN = {
	"open"  ~  ! ( Letter | UnicodeDigit )
}
 VARARG = {
	"vararg"  ~  ! ( Letter | UnicodeDigit )
}
 NOINLINE = {
	"noinline"  ~  ! ( Letter | UnicodeDigit )
}
 CROSSINLINE = {
	"crossinline"  ~  ! ( Letter | UnicodeDigit )
}
 REIFIED = {
	"reified"  ~  ! ( Letter | UnicodeDigit )
}
 EXPECT = {
	"expect"  ~  ! ( Letter | UnicodeDigit )
}
 ACTUAL = {
	"actual"  ~  ! ( Letter | UnicodeDigit )
}
 singleAnnotation = {
	 ( annotationUseSiteTarget ~  __* ~  unescapedAnnotation )
	| ( ( AT_NO_WS | AT_PRE_WS ) ~  unescapedAnnotation )
}
 multiAnnotation = {
	 ( annotationUseSiteTarget ~  __* ~  LSQUARE ~  unescapedAnnotation+ ~  RSQUARE )
	| ( ( AT_NO_WS | AT_PRE_WS ) ~  LSQUARE ~  unescapedAnnotation+ ~  RSQUARE )
}
 annotationUseSiteTarget = {
	 ( AT_NO_WS | AT_PRE_WS ) ~  ( FIELD | PROPERTY | GET | SET | RECEIVER | PARAM | SETPARAM | DELEGATE ) ~  __* ~  COLON
}
 FIELD = {
	"field"  ~  ! ( Letter | UnicodeDigit )
}
 PROPERTY = {
	"property"  ~  ! ( Letter | UnicodeDigit )
}
 RECEIVER = {
	"receiver"  ~  ! ( Letter | UnicodeDigit )
}
 PARAM = {
	"param"  ~  ! ( Letter | UnicodeDigit )
}
 SETPARAM = {
	"setparam"  ~  ! ( Letter | UnicodeDigit )
}
 DELEGATE = {
	"delegate"  ~  ! ( Letter | UnicodeDigit )
}
 hardKeyword = {
	 AS
	| BREAK
	| CLASS
	| CONTINUE
	| DO
	| ELSE
	| FOR
	| FUN
	| IF
	| IN
	| INTERFACE
	| IS
	| NullLiteral
	| OBJECT
	| PACKAGE
	| RETURN
	| SUPER
	| THIS
	| THROW
	| TRY
	| TYPE_ALIAS
	| TYPEOF
	| VAL
	| VAR
	| WHEN
	| WHILE
	| BooleanLiteral
}
 Identifier = {
	 ("`"  ~  ( ! [`\r\n] ~ ANY )+ ~ "`"  )
	| ( ( Letter |"_"  ) ~  ( Letter |"_"  | UnicodeDigit )* )
}
 TYPEOF = {
	"typeof"  ~  ! ( Letter | UnicodeDigit )
}
 DelimitedComment = {
	"/*"  ~  ( DelimitedComment | ( !"*/"  ~ ANY ) )* ~ "*/" 
}
 LineComment = {
	"//"  ~  ( ! [\r\n] ~ ANY )*
}
 Hidden = {
	 DelimitedComment
	| LineComment
	| WS
}
 WS = {
	 [ \t\f]
}
 DecDigit = {
	 [0-9]
}
 DecDigitNoZero = {
	 [1-9]
}
 DecDigitOrSeparator = {
	 DecDigit
	|"_" 
}
 DecDigits = {
	 ( DecDigit ~  DecDigitOrSeparator* )
	| DecDigit
}
 DoubleExponent = {
	 [eE] ~  [-+]? ~  DecDigits
}
 FloatLiteral = {
	 ( DoubleLiteral ~  [fF] )
	| ( DecDigits ~  [fF] )
}
 DoubleLiteral = {
	 ( DecDigits? ~ "."  ~  DecDigits ~  DoubleExponent? )
	| ( DecDigits ~  DoubleExponent )
}
 HexDigit = {
	 [0-9a-fA-F]
}
 HexDigitOrSeparator = {
	 HexDigit
	|"_" 
}
 BinDigit = {
	 [01]
}
 BinDigitOrSeparator = {
	 BinDigit
	|"_" 
}
 EscapeSeq = {
	 UniCharacterLiteral
	| EscapedIdentifier
}
 IdentifierOrSoftKey = {
	 Identifier
	| ABSTRACT
	| ANNOTATION
	| BY
	| CATCH
	| COMPANION
	| CONSTRUCTOR
	| CROSSINLINE
	| DATA
	| DYNAMIC
	| ENUM
	| EXTERNAL
	| FINAL
	| FINALLY
	| IMPORT
	| INFIX
	| INIT
	| INLINE
	| INNER
	| INTERNAL
	| LATEINIT
	| NOINLINE
	| OPEN
	| OPERATOR
	| OUT
	| OVERRIDE
	| PRIVATE
	| PROTECTED
	| PUBLIC
	| REIFIED
	| SEALED
	| TAILREC
	| VARARG
	| WHERE
	| GET
	| SET
	| FIELD
	| PROPERTY
	| RECEIVER
	| PARAM
	| SETPARAM
	| DELEGATE
	| FILE
	| EXPECT
	| ACTUAL
	| CONST
	| SUSPEND
}
 FieldIdentifier = {
	"$"  ~  IdentifierOrSoftKey
}
 UniCharacterLiteral = {
	"\\"  ~ "u"  ~  HexDigit ~  HexDigit ~  HexDigit ~  HexDigit
}
 EscapedIdentifier = {
	"\\"  ~  ("t"  |"b"  |"r"  |"n"  |"\'"  |"\""  |"\\"  |"$"  )
}

[glyn]

Unless someone can easily see the problem, I suggest reducing the grammar to a minimal version which reproduces the problem. @mingodad: have you tried cutting down the grammar?

[mingodad]

Nop !
I only translated it from https://github.com/universal-ctags/ctags/blob/master/peg/kotlin.peg and tested it on https://github.com/ChrisHixon/chpeg , https://github.com/yhirose/cpp-peglib and now here, it seems to be problematic grammar good to test/torture peg parsers.

[lwandrebeck]

Just tried to reproduce locally (after a couple changes because the grammar does not work as-is with 2.4.0) without success. But I’m not sure if my changes make the grammar exactly the same (does anyone remember what [] means in older pest grammar format ?)

[tomtau]

Yes, the current online editor runs based off a wasm blob that was somehow built with 2.1 or earlier.
The site build process seems to be a mystery and there are a few deprecated components such as stdweb: #664 (reply in thread)
@nathanielknight may have been working on a more comprehensive site re-work which should use a more recent pest version (and more recent wasm tooling), but not sure where it's at and if this issue is reproducible there.

[tomtau]

After some fixes and migrating to the latest pest, it seems this can't be reproduced any more: pest-parser/site#15 (comment)
(the editor will show a small red squiggly line on the same place as the debugger:

  --> 27:7
   |
27 |     ( ! [\n] ~ ANY )+ ~  NL*
   |         ^---
   |
   = expected `(`, `&`, `!`, PUSH, peek_slice, identifier, `^`, `"`, or `'`

). It's because that grammar uses the old syntax. But feel free to reopen it if this can be reproduced if the grammar is migrated to a newer syntax.