# Python 的 PEG 文法# ========================= 文法的開始 =========================# 通用文法結構與規則## * 雙引號（"）字串表示軟關鍵字 (SOFT KEYWORDS)# * 單引號（'）字串表示關鍵字 (KEYWORDS)# * 大寫名稱 (NAME) 表示 Grammar/Tokens 檔案中的語彙符號 (token)# * 以 "invalid_" 開頭的規則名稱用於專門的語法錯誤#     - 這些規則不會在剖析器的第一遍剖析中使用。#     - 只有當第一遍剖析失敗時，才會執行包含無效規則的第二遍。#     - 如果剖析器在第二階段因泛用語法錯誤而失敗，#       則會使用第一遍泛用失敗的位置（這可避免因無效規則#       而報告錯誤的位置）。#     - 涉及無效規則的替代方案的順序很重要#       （就像 PEG 中的任何規則一樣）。## 文法語法（更多資訊請參閱 PEP 617）：## rule_name: expression#   在規則名稱後面可以選擇性地包含型別，用來指定對應此規則的#   C 或 Python 函式的回傳型別：# rule_name[return_type]: expression#   如果省略回傳型別，則在 C 中回傳 void *，並在 Python 中回傳 Any。# e1 e2#   匹配 e1，然後匹配 e2。# e1 | e2#   匹配 e1 或 e2。#   為了格式化目的，第一個替代選項也可以出現在規則名稱後的下一行。#   在這種情況下，必須在第一個替代選項之前使用 |，如下所示：#       rule_name[return_type]:#            | first_alt#            | second_alt# ( e )#   匹配 e（也允許在群組中使用其他運算子，如 '(e)*'）# [ e ] or e?#   可選地匹配 e。# e*#   匹配零個或多個 e。# e+#   匹配一個或多個 e。# s.e+#   匹配一個或多個 e，以 s 分隔。產生的剖析樹不包含分隔符號。#   這在其他方面與 (e (s e)*) 相同。# &e#   如果可以剖析 e 則成功，但不消耗任何輸入。# !e#   如果可以剖析 e 則失敗，但不消耗任何輸入。# ~#   提交到目前的替代選項，即使剖析失敗。# &&e#   急切剖析 e。如果無法剖析 e，剖析器將不會回溯 (backtrack)，並會立即#   引發 SyntaxError 失敗。## 起始規則# =======file:[statements] ENDMARKERinteractive:statement_newlineeval:expressions NEWLINE* ENDMARKERfunc_type: '('[type_expressions] ')' '->'expression NEWLINE* ENDMARKER# 一般陳述式# =========statements:statement+statement:|compound_stmt|simple_stmtssingle_compound_stmt:|compound_stmtstatement_newline:|single_compound_stmt NEWLINE|simple_stmts| NEWLINE| ENDMARKERsimple_stmts:|simple_stmt !';' NEWLINE# Not needed, there for speedup| ';'.simple_stmt+[';'] NEWLINE# 註：賦值必須在運算式之前，否則剖析簡單賦值時會引發 SyntaxError。simple_stmt:|assignment|type_alias|star_expressions|return_stmt|import_stmt|raise_stmt|pass_stmt|del_stmt|yield_stmt|assert_stmt|break_stmt|continue_stmt|global_stmt|nonlocal_stmtcompound_stmt:|function_def|if_stmt|class_def|with_stmt|for_stmt|try_stmt|while_stmt|match_stmt# 簡單陳述式# =========# 註：annotated_rhs 可以用 'yield' 開頭；yield_expr 必須以 'yield' 開頭assignment:| NAME ':'expression['='annotated_rhs]|('('single_target ')'|single_subscript_attribute_target) ':'expression['='annotated_rhs]|(star_targets '=')+annotated_rhs !'='[TYPE_COMMENT]|single_targetaugassign ~annotated_rhsannotated_rhs:yield_expr|star_expressionsaugassign:| '+='| '-='| '*='| '@='| '/='| '%='| '&='| '|='| '^='| '<<='| '>>='| '**='| '//='return_stmt:|'return'[star_expressions]raise_stmt:|'raise'expression['from'expression]|'raise'pass_stmt:|'pass'break_stmt:|'break'continue_stmt:|'continue'global_stmt:'global' ','.NAME+nonlocal_stmt:'nonlocal' ','.NAME+del_stmt:|'del'del_targets &(';'| NEWLINE)yield_stmt:yield_exprassert_stmt:'assert'expression[','expression]import_stmt:|import_name|import_from# Import 陳述式# ------------import_name:'import'dotted_as_names# 注意以下部分：('.' | '...') 是必須的，因為 '...' 是被 tokenize 為 ELLIPSISimport_from:|'from'('.'| '...')*dotted_name'import'import_from_targets|'from'('.'| '...')+'import'import_from_targetsimport_from_targets:| '('import_from_as_names[','] ')'|import_from_as_names !','| '*'import_from_as_names:| ','.import_from_as_name+import_from_as_name:| NAME['as' NAME]dotted_as_names:| ','.dotted_as_name+dotted_as_name:|dotted_name['as' NAME]dotted_name:|dotted_name '.' NAME| NAME# 複合陳述式# ========# 共用元素# -------block:| NEWLINE INDENTstatements DEDENT|simple_stmtsdecorators:('@'named_expression NEWLINE)+# 類別定義# -------class_def:|decoratorsclass_def_raw|class_def_rawclass_def_raw:|'class' NAME[type_params]['('[arguments] ')'] ':'block# 函式定義# -------function_def:|decoratorsfunction_def_raw|function_def_rawfunction_def_raw:|'def' NAME[type_params] '('[params] ')'['->'expression] ':'[func_type_comment]block|'async''def' NAME[type_params] '('[params] ')'['->'expression] ':'[func_type_comment]block# 函式參數# -------params:|parametersparameters:|slash_no_defaultparam_no_default*param_with_default*[star_etc]|slash_with_defaultparam_with_default*[star_etc]|param_no_default+param_with_default*[star_etc]|param_with_default+[star_etc]|star_etc# 這裡有些重複，因為我們不能寫 (',' | &')')，# 這是因為我們（尚）不支援空替代方案。slash_no_default:|param_no_default+ '/' ','|param_no_default+ '/' &')'slash_with_default:|param_no_default*param_with_default+ '/' ','|param_no_default*param_with_default+ '/' &')'star_etc:| '*'param_no_defaultparam_maybe_default*[kwds]| '*'param_no_default_star_annotationparam_maybe_default*[kwds]| '*' ','param_maybe_default+[kwds]|kwdskwds:| '**'param_no_default# 一個參數。這 *包含* 後面的逗號和型別註解。## 有三種風格：# - 沒有預設值# - 有預設值# - 可能有預設值## 每種都有兩種替代形式，用以處理型別註解：# - 以逗號結尾，後面接可選的型別註解# - 沒有逗號，可選的型別註解，後面必須接右括號# 後者是用於沒有尾隨逗號的最後一個參數。#param_no_default:|param ',' TYPE_COMMENT?|param TYPE_COMMENT? &')'param_no_default_star_annotation:|param_star_annotation ',' TYPE_COMMENT?|param_star_annotation TYPE_COMMENT? &')'param_with_default:|paramdefault ',' TYPE_COMMENT?|paramdefault TYPE_COMMENT? &')'param_maybe_default:|paramdefault? ',' TYPE_COMMENT?|paramdefault? TYPE_COMMENT? &')'param: NAMEannotation?param_star_annotation: NAMEstar_annotationannotation: ':'expressionstar_annotation: ':'star_expressiondefault: '='expression|invalid_default# If 陳述式# --------if_stmt:|'if'named_expression ':'blockelif_stmt|'if'named_expression ':'block[else_block]elif_stmt:|'elif'named_expression ':'blockelif_stmt|'elif'named_expression ':'block[else_block]else_block:|'else' ':'block# While 陳述式# -----------while_stmt:|'while'named_expression ':'block[else_block]# For 陳述式# ---------for_stmt:|'for'star_targets'in' ~star_expressions ':'[TYPE_COMMENT]block[else_block]|'async''for'star_targets'in' ~star_expressions ':'[TYPE_COMMENT]block[else_block]# With 陳述式# ----------with_stmt:|'with' '(' ','.with_item+ ','? ')' ':'[TYPE_COMMENT]block|'with' ','.with_item+ ':'[TYPE_COMMENT]block|'async''with' '(' ','.with_item+ ','? ')' ':'block|'async''with' ','.with_item+ ':'[TYPE_COMMENT]blockwith_item:|expression'as'star_target &(','| ')'| ':')|expression# Try 陳述式# ---------try_stmt:|'try' ':'blockfinally_block|'try' ':'blockexcept_block+[else_block][finally_block]|'try' ':'blockexcept_star_block+[else_block][finally_block]# Except 陳述式# ------------except_block:|'except'expression ':'block|'except'expression'as' NAME ':'block|'except'expressions ':'block|'except' ':'blockexcept_star_block:|'except' '*'expression ':'block|'except' '*'expression'as' NAME ':'block|'except' '*'expressions ':'blockfinally_block:|'finally' ':'block# Match 陳述式# -----------match_stmt:|"match"subject_expr ':' NEWLINE INDENTcase_block+ DEDENTsubject_expr:|star_named_expression ','star_named_expressions?|named_expressioncase_block:|"case"patternsguard? ':'blockguard:'if'named_expressionpatterns:|open_sequence_pattern|patternpattern:|as_pattern|or_patternas_pattern:|or_pattern'as'pattern_capture_targetor_pattern:| '|'.closed_pattern+closed_pattern:|literal_pattern|capture_pattern|wildcard_pattern|value_pattern|group_pattern|sequence_pattern|mapping_pattern|class_pattern# 字面值模式被用於相等性和識別字限制literal_pattern:|signed_number !('+'| '-')|complex_number|strings|'None'|'True'|'False'# 字面值運算式被用於限制允許的對映模式鍵literal_expr:|signed_number !('+'| '-')|complex_number|strings|'None'|'True'|'False'complex_number:|signed_real_number '+'imaginary_number|signed_real_number '-'imaginary_numbersigned_number:| NUMBER| '-' NUMBERsigned_real_number:|real_number| '-'real_numberreal_number:| NUMBERimaginary_number:| NUMBERcapture_pattern:|pattern_capture_targetpattern_capture_target:| !"_" NAME !('.'| '('| '=')wildcard_pattern:|"_"value_pattern:|attr !('.'| '('| '=')attr:|name_or_attr '.' NAMEname_or_attr:|attr| NAMEgroup_pattern:| '('pattern ')'sequence_pattern:| '['maybe_sequence_pattern? ']'| '('open_sequence_pattern? ')'open_sequence_pattern:|maybe_star_pattern ','maybe_sequence_pattern?maybe_sequence_pattern:| ','.maybe_star_pattern+ ','?maybe_star_pattern:|star_pattern|patternstar_pattern:| '*'pattern_capture_target| '*'wildcard_patternmapping_pattern:| '{' '}'| '{'double_star_pattern ','? '}'| '{'items_pattern ','double_star_pattern ','? '}'| '{'items_pattern ','? '}'items_pattern:| ','.key_value_pattern+key_value_pattern:|(literal_expr|attr) ':'patterndouble_star_pattern:| '**'pattern_capture_targetclass_pattern:|name_or_attr '(' ')'|name_or_attr '('positional_patterns ','? ')'|name_or_attr '('keyword_patterns ','? ')'|name_or_attr '('positional_patterns ','keyword_patterns ','? ')'positional_patterns:| ','.pattern+keyword_patterns:| ','.keyword_pattern+keyword_pattern:| NAME '='pattern# Type 陳述式# ----------type_alias:|"type" NAME[type_params] '='expression# Type 參數宣告# ------------type_params:| '['type_param_seq ']'type_param_seq: ','.type_param+[',']type_param:| NAME[type_param_bound][type_param_default]| '*' NAME[type_param_starred_default]| '**' NAME[type_param_default]type_param_bound: ':'expressiontype_param_default: '='expressiontype_param_starred_default: '='star_expression# 運算式# -----expressions:|expression(','expression)+[',']|expression ','|expressionexpression:|disjunction'if'disjunction'else'expression|disjunction|lambdefyield_expr:|'yield''from'expression|'yield'[star_expressions]star_expressions:|star_expression(','star_expression)+[',']|star_expression ','|star_expressionstar_expression:| '*'bitwise_or|expressionstar_named_expressions: ','.star_named_expression+[',']star_named_expression:| '*'bitwise_or|named_expressionassignment_expression:| NAME ':=' ~expressionnamed_expression:|assignment_expression|expression !':='disjunction:|conjunction('or'conjunction)+|conjunctionconjunction:|inversion('and'inversion)+|inversioninversion:|'not'inversion|comparison# 比較運算子# --------comparison:|bitwise_orcompare_op_bitwise_or_pair+|bitwise_orcompare_op_bitwise_or_pair:|eq_bitwise_or|noteq_bitwise_or|lte_bitwise_or|lt_bitwise_or|gte_bitwise_or|gt_bitwise_or|notin_bitwise_or|in_bitwise_or|isnot_bitwise_or|is_bitwise_oreq_bitwise_or: '=='bitwise_ornoteq_bitwise_or:|('!=')bitwise_orlte_bitwise_or: '<='bitwise_orlt_bitwise_or: '<'bitwise_orgte_bitwise_or: '>='bitwise_orgt_bitwise_or: '>'bitwise_ornotin_bitwise_or:'not''in'bitwise_orin_bitwise_or:'in'bitwise_orisnot_bitwise_or:'is''not'bitwise_oris_bitwise_or:'is'bitwise_or# 位元運算子# --------bitwise_or:|bitwise_or '|'bitwise_xor|bitwise_xorbitwise_xor:|bitwise_xor '^'bitwise_and|bitwise_andbitwise_and:|bitwise_and '&'shift_expr|shift_exprshift_expr:|shift_expr '<<'sum|shift_expr '>>'sum|sum# 算術運算子# --------sum:|sum '+'term|sum '-'term|termterm:|term '*'factor|term '/'factor|term '//'factor|term '%'factor|term '@'factor|factorfactor:| '+'factor| '-'factor| '~'factor|powerpower:|await_primary '**'factor|await_primary# 主要元素# -------# 主要元素是像 "obj.something.something", "obj[something]", "obj(something)", "obj" ... 這樣的東西await_primary:|'await'primary|primaryprimary:|primary '.' NAME|primarygenexp|primary '('[arguments] ')'|primary '['slices ']'|atomslices:|slice !','| ','.(slice|starred_expression)+[',']slice:|[expression] ':'[expression][':'[expression]]|named_expressionatom:| NAME|'True'|'False'|'None'|strings| NUMBER|(tuple|group|genexp)|(list|listcomp)|(dict|set|dictcomp|setcomp)| '...'group:| '('(yield_expr|named_expression) ')'# Lambda 函式# ----------lambdef:|'lambda'[lambda_params] ':'expressionlambda_params:|lambda_parameters# lambda_parameters 等複製了參數但沒有註釋# 或型別註解，而且如果參數後面沒有逗號，我們預期會有# 冒號，而不是右括號。（更多資訊請參見上面的參數部分。）#lambda_parameters:|lambda_slash_no_defaultlambda_param_no_default*lambda_param_with_default*[lambda_star_etc]|lambda_slash_with_defaultlambda_param_with_default*[lambda_star_etc]|lambda_param_no_default+lambda_param_with_default*[lambda_star_etc]|lambda_param_with_default+[lambda_star_etc]|lambda_star_etclambda_slash_no_default:|lambda_param_no_default+ '/' ','|lambda_param_no_default+ '/' &':'lambda_slash_with_default:|lambda_param_no_default*lambda_param_with_default+ '/' ','|lambda_param_no_default*lambda_param_with_default+ '/' &':'lambda_star_etc:| '*'lambda_param_no_defaultlambda_param_maybe_default*[lambda_kwds]| '*' ','lambda_param_maybe_default+[lambda_kwds]|lambda_kwdslambda_kwds:| '**'lambda_param_no_defaultlambda_param_no_default:|lambda_param ','|lambda_param &':'lambda_param_with_default:|lambda_paramdefault ','|lambda_paramdefault &':'lambda_param_maybe_default:|lambda_paramdefault? ','|lambda_paramdefault? &':'lambda_param: NAME# 字面值# =====fstring_middle:|fstring_replacement_field| FSTRING_MIDDLEfstring_replacement_field:| '{'annotated_rhs '='?[fstring_conversion][fstring_full_format_spec] '}'fstring_conversion:| "!" NAMEfstring_full_format_spec:| ':'fstring_format_spec*fstring_format_spec:| FSTRING_MIDDLE|fstring_replacement_fieldfstring:| FSTRING_STARTfstring_middle* FSTRING_ENDtstring_format_spec_replacement_field:| '{'annotated_rhs '='?[fstring_conversion][tstring_full_format_spec] '}'tstring_format_spec:| TSTRING_MIDDLE|tstring_format_spec_replacement_fieldtstring_full_format_spec:| ':'tstring_format_spec*tstring_replacement_field:| '{'annotated_rhs '='?[fstring_conversion][tstring_full_format_spec] '}'tstring_middle:|tstring_replacement_field| TSTRING_MIDDLEtstring:| TSTRING_STARTtstring_middle* TSTRING_ENDstring: STRINGstrings:|(fstring|string)+|tstring+list:| '['[star_named_expressions] ']'tuple:| '('[star_named_expression ','[star_named_expressions]] ')'set: '{'star_named_expressions '}'# 字典# ----dict:| '{'[double_starred_kvpairs] '}'double_starred_kvpairs: ','.double_starred_kvpair+[',']double_starred_kvpair:| '**'bitwise_or|kvpairkvpair:expression ':'expression# 綜合運算式與產生器# ---------------------------for_if_clauses:|for_if_clause+for_if_clause:|'async''for'star_targets'in' ~disjunction('if'disjunction)*|'for'star_targets'in' ~disjunction('if'disjunction)*listcomp:| '['named_expressionfor_if_clauses ']'setcomp:| '{'named_expressionfor_if_clauses '}'genexp:| '('(assignment_expression|expression !':=')for_if_clauses ')'dictcomp:| '{'kvpairfor_if_clauses '}'# 函式呼叫引數# ==========arguments:|args[','] &')'args:| ','.(starred_expression|(assignment_expression|expression !':=') !'=')+[','kwargs]|kwargskwargs:| ','.kwarg_or_starred+ ',' ','.kwarg_or_double_starred+| ','.kwarg_or_starred+| ','.kwarg_or_double_starred+starred_expression:| '*'expressionkwarg_or_starred:| NAME '='expression|starred_expressionkwarg_or_double_starred:| NAME '='expression| '**'expression# 賦值目標# =======# 泛用目標# -------# 注意：star_targets 可能包含 *bitwise_or，targets 則不可以。star_targets:|star_target !','|star_target(','star_target)*[',']star_targets_list_seq: ','.star_target+[',']star_targets_tuple_seq:|star_target(','star_target)+[',']|star_target ','star_target:| '*'(!'*'star_target)|target_with_star_atomtarget_with_star_atom:|t_primary '.' NAME !t_lookahead|t_primary '['slices ']' !t_lookahead|star_atomstar_atom:| NAME| '('target_with_star_atom ')'| '('[star_targets_tuple_seq] ')'| '['[star_targets_list_seq] ']'single_target:|single_subscript_attribute_target| NAME| '('single_target ')'single_subscript_attribute_target:|t_primary '.' NAME !t_lookahead|t_primary '['slices ']' !t_lookaheadt_primary:|t_primary '.' NAME &t_lookahead|t_primary '['slices ']' &t_lookahead|t_primarygenexp &t_lookahead|t_primary '('[arguments] ')' &t_lookahead|atom &t_lookaheadt_lookahead: '('| '['| '.'# del 陳述式的目標# --------------del_targets: ','.del_target+[',']del_target:|t_primary '.' NAME !t_lookahead|t_primary '['slices ']' !t_lookahead|del_t_atomdel_t_atom:| NAME| '('del_target ')'| '('[del_targets] ')'| '['[del_targets] ']'# 型別元素# -------# type_expressions 允許 */** 但會忽略他們type_expressions:| ','.expression+ ',' '*'expression ',' '**'expression| ','.expression+ ',' '*'expression| ','.expression+ ',' '**'expression| '*'expression ',' '**'expression| '*'expression| '**'expression| ','.expression+func_type_comment:| NEWLINE TYPE_COMMENT &(NEWLINE INDENT)# 後面必須接縮排區塊| TYPE_COMMENT# ========================= 文法結束 ===========================# ========================= 無效規則開始 =======================# 從這裡開始是用於無效語法的規則，具有專門的錯誤訊息invalid_arguments:|((','.(starred_expression|(assignment_expression|expression !':=') !'=')+ ','kwargs)|kwargs) ',' ','.(starred_expression !'=')+|expressionfor_if_clauses ','[args|expressionfor_if_clauses]| NAME '='expressionfor_if_clauses|(args ',')? NAME '=' &(','| ')')|argsfor_if_clauses|args ','expressionfor_if_clauses|args ','argsinvalid_kwarg:|('True'|'False'|'None') '='| NAME '='expressionfor_if_clauses| !(NAME '=')expression '='| '**'expression '='expression# 重要：請注意 "_without_invalid" 後綴會導致該規則不呼叫其下的無效規則expression_without_invalid:|disjunction'if'disjunction'else'expression|disjunction|lambdefinvalid_legacy_expression:| NAME !'('star_expressionsinvalid_type_param:| '*' NAME ':'expression| '**' NAME ':'expressioninvalid_expression:|  STRING(!STRINGexpression_without_invalid)+ STRING# !(NAME STRING) 不匹配所以我們不會去顯示有著像是 kf"dsfsdf" 無效字串前綴的錯誤# 軟關鍵字也需要被忽略，因為它們可以被剖析為 NAME NAME| !(NAME STRING| SOFT_KEYWORD)disjunctionexpression_without_invalid|disjunction'if'disjunction !('else'|':')|disjunction'if'disjunction'else' !expression|(pass_stmt|break_stmt|continue_stmt)'if'disjunction'else'simple_stmt|'lambda'[lambda_params] ':' &FSTRING_MIDDLE|'lambda'[lambda_params] ':' &TSTRING_MIDDLEinvalid_named_expression:|expression ':='expression| NAME '='bitwise_or !('='|':=')| !(list|tuple|genexp|'True'|'None'|'False')bitwise_or '='bitwise_or !('='|':=')invalid_assignment:RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a,            "onlysingletarget(not %s)canbeannotated",_PyPegen_get_expr_name(a))}|star_named_expression ','star_named_expressions* ':'expression|expression ':'expression|(star_targets '=')*star_expressions '='|(star_targets '=')*yield_expr '='|star_expressionsaugassignannotated_rhsinvalid_ann_assign_target:|list|tupleinvalid_del_stmt:|'del'star_expressionsinvalid_block:| NEWLINE !INDENTinvalid_comprehension:|('['| '('| '{')starred_expressionfor_if_clauses|('['| '{')star_named_expression ','star_named_expressionsfor_if_clauses|('['| '{')star_named_expression ','for_if_clausesinvalid_dict_comprehension:| '{' '**'bitwise_orfor_if_clauses '}'invalid_parameters:| "/" ','|(slash_no_default|slash_with_default)param_maybe_default* '/'RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "parameterwithoutadefaultfollowsparameterwithadefault")}|param_no_default* '('param_no_default+ ','? ')'|(slash_no_default|slash_with_default)?param_maybe_default* '*'(','|param_no_default)param_maybe_default* '/'|param_maybe_default+ '/' '*'invalid_default:| '=' &(')'|',')invalid_star_etc:| '*'(')'| ','(')'| '**'))| '*' ',' TYPE_COMMENT| '*'param '='| '*'(param_no_default| ',')param_maybe_default* '*'(param_no_default| ',')invalid_kwds:| '**'param '='| '**'param ','param| '**'param ','('*'|'**'|'/')invalid_parameters_helper:# 這是為了避免型別錯誤而存在的規則|slash_with_default|param_with_default+invalid_lambda_parameters:| "/" ','|(lambda_slash_no_default|lambda_slash_with_default)lambda_param_maybe_default* '/'RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "parameterwithoutadefaultfollowsparameterwithadefault")}|lambda_param_no_default* '(' ','.lambda_param+ ','? ')'|(lambda_slash_no_default|lambda_slash_with_default)?lambda_param_maybe_default* '*'(','|lambda_param_no_default)lambda_param_maybe_default* '/'|lambda_param_maybe_default+ '/' '*'invalid_lambda_parameters_helper:|lambda_slash_with_default|lambda_param_with_default+invalid_lambda_star_etc:| '*'(':'| ','(':'| '**'))| '*'lambda_param '='| '*'(lambda_param_no_default| ',')lambda_param_maybe_default* '*'(lambda_param_no_default| ',')invalid_lambda_kwds:| '**'lambda_param '='| '**'lambda_param ','lambda_param| '**'lambda_param ','('*'|'**'|'/')invalid_double_type_comments:| TYPE_COMMENT NEWLINE TYPE_COMMENT NEWLINE INDENTinvalid_with_item:|expression'as'expression &(','| ')'| ':')invalid_for_if_clause:|'async'?'for'(bitwise_or(','bitwise_or)*[',']) !'in'invalid_for_target:|'async'?'for'star_expressionsinvalid_group:| '('starred_expression ')'| '(' '**'expression ')'invalid_import:|'import' ','.dotted_name+'from'dotted_name|'import' NEWLINEinvalid_dotted_as_name:|dotted_name'as' !(NAME(','| ')'| ';'| NEWLINE))expressioninvalid_import_from_as_name:| NAME'as' !(NAME(','| ')'| ';'| NEWLINE))expressioninvalid_import_from_targets:|import_from_as_names ',' NEWLINE| NEWLINEinvalid_with_stmt:|['async']'with' ','.(expression['as'star_target])+ NEWLINE|['async']'with' '(' ','.(expressions['as'star_target])+ ','? ')' NEWLINEinvalid_with_stmt_indent:|['async']'with' ','.(expression['as'star_target])+ ':' NEWLINE !INDENT|['async']'with' '(' ','.(expressions['as'star_target])+ ','? ')' ':' NEWLINE !INDENTinvalid_try_stmt:|'try' ':' NEWLINE !INDENT|'try' ':'block !('except'|'finally')|'try' ':'block*except_block+'except' '*'expression['as' NAME] ':'|'try' ':'block*except_star_block+'except'[expression['as' NAME]] ':'invalid_except_stmt:|'except'expression ','expressions'as' NAME  ':'|'except'expression['as' NAME] NEWLINE|'except' NEWLINE|'except'expression'as'expression ':'blockinvalid_except_star_stmt:|'except' '*'expression ','expressions'as' NAME  ':'|'except' '*'expression['as' NAME] NEWLINE|'except' '*'(NEWLINE| ':')|'except' '*'expression'as'expression ':'blockinvalid_finally_stmt:|'finally' ':' NEWLINE !INDENTinvalid_except_stmt_indent:|'except'expression['as' NAME] ':' NEWLINE !INDENT|'except' ':' NEWLINE !INDENTinvalid_except_star_stmt_indent:|'except' '*'expression['as' NAME] ':' NEWLINE !INDENTinvalid_match_stmt:|"match"subject_expr NEWLINE|"match"subject_expr ':' NEWLINE !INDENTinvalid_case_block:|"case"patternsguard? NEWLINE|"case"patternsguard? ':' NEWLINE !INDENTinvalid_as_pattern:|or_pattern'as'"_"|or_pattern'as'expressioninvalid_class_pattern:PyPegen_first_item(a,pattern_ty),PyPegen_last_item(a,pattern_ty),        "positionalpatternsfollowkeywordpatterns")}invalid_class_argument_pattern:|[positional_patterns ',']keyword_patterns ','positional_patternsinvalid_if_stmt:|'if'named_expression NEWLINE|'if'named_expression ':' NEWLINE !INDENTinvalid_elif_stmt:|'elif'named_expression NEWLINE|'elif'named_expression ':' NEWLINE !INDENTinvalid_else_stmt:|'else' ':' NEWLINE !INDENT|'else' ':'block'elif'invalid_while_stmt:|'while'named_expression NEWLINE|'while'named_expression ':' NEWLINE !INDENTinvalid_for_stmt:|['async']'for'star_targets'in'star_expressions NEWLINE|['async']'for'star_targets'in'star_expressions ':' NEWLINE !INDENTinvalid_def_raw:|['async']'def' NAME[type_params] '('[params] ')'['->'expression] ':' NEWLINE !INDENT|['async']'def' NAME[type_params] '('[params] ')'['->'expression] ':'[func_type_comment]blockinvalid_class_def_raw:|'class' NAME[type_params]['('[arguments] ')'] NEWLINE|'class' NAME[type_params]['('[arguments] ')'] ':' NEWLINE !INDENTinvalid_double_starred_kvpairs:|expression ':' '*'bitwise_or|expression ':' &('}'|',')invalid_kvpair:|expression !(':')|expression ':' '*'bitwise_or|expression ':' &('}'|',')invalid_starred_expression_unpacking:| '*'expression '='expressioninvalid_starred_expression:| '*'invalid_fstring_replacement_field:| '{' '='| '{' '!'| '{' ':'| '{' '}' '") }    | '| '{'annotated_rhs !('='| '!'| ':'| '}') '") }    | '') '") }    | '') '") }    | '' ',orformatspecs")}| '{'annotated_rhs '='?['!' NAME] !'}' '")}invalid_fstring_conversion_character:| '!' &(':'| '}')| '!' !NAMEinvalid_tstring_replacement_field:| '{' '='| '{' '!'| '{' ':'| '{' '}' '") }    | '| '{'annotated_rhs !('='| '!'| ':'| '}') '") }    | '') '") }    | '') '") }    | '' ',orformatspecs")}| '{'annotated_rhs '='?['!' NAME] !'}' '")}invalid_tstring_conversion_character:| '!' &(':'| '}')| '!' !NAMEinvalid_string_tstring_concat:|(fstring|string)+tstring|tstring+(fstring|string)invalid_arithmetic:|sum('+'|'-'|'*'|'/'|'%'|'//'|'@')'not'inversioninvalid_factor:|('+'| '-'| '~')'not'factorinvalid_type_params:| '[' ']'