X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/dc71922c768e543c9c3bbb1db5ea6d7fa801a814..43b53a034c9e3ada9295bf7f93be473b66b74f75:/.vim/bundle/black/src/blib2to3/Grammar.txt

diff --git a/.vim/bundle/black/src/blib2to3/Grammar.txt b/.vim/bundle/black/src/blib2to3/Grammar.txt
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-# Grammar for 2to3. This grammar supports Python 2.x and 3.x.
-
-# NOTE WELL: You should also follow all the steps listed at
-# https://devguide.python.org/grammar/
-
-# Start symbols for the grammar:
-#	file_input is a module or sequence of commands read from an input file;
-#	single_input is a single interactive statement;
-#	eval_input is the input for the eval() and input() functions.
-# NB: compound_stmt in single_input is followed by extra NEWLINE!
-file_input: (NEWLINE | stmt)* ENDMARKER
-single_input: NEWLINE | simple_stmt | compound_stmt NEWLINE
-eval_input: testlist NEWLINE* ENDMARKER
-
-decorator: '@' namedexpr_test NEWLINE
-decorators: decorator+
-decorated: decorators (classdef | funcdef | async_funcdef)
-async_funcdef: ASYNC funcdef
-funcdef: 'def' NAME parameters ['->' test] ':' suite
-parameters: '(' [typedargslist] ')'
-
-# The following definition for typedarglist is equivalent to this set of rules:
-#
-#     arguments = argument (',' argument)*
-#     argument = tfpdef ['=' test]
-#     kwargs = '**' tname [',']
-#     args = '*' [tname]
-#     kwonly_kwargs = (',' argument)* [',' [kwargs]]
-#     args_kwonly_kwargs = args kwonly_kwargs | kwargs
-#     poskeyword_args_kwonly_kwargs = arguments [',' [args_kwonly_kwargs]]
-#     typedargslist_no_posonly  = poskeyword_args_kwonly_kwargs | args_kwonly_kwargs
-#     typedarglist = arguments ',' '/' [',' [typedargslist_no_posonly]])|(typedargslist_no_posonly)"
-#
-# It needs to be fully expanded to allow our LL(1) parser to work on it.
-
-typedargslist: tfpdef ['=' test] (',' tfpdef ['=' test])* ',' '/' [
-                     ',' [((tfpdef ['=' test] ',')* ('*' [tname] (',' tname ['=' test])*
-                            [',' ['**' tname [',']]] | '**' tname [','])
-                     | tfpdef ['=' test] (',' tfpdef ['=' test])* [','])]
-                ] | ((tfpdef ['=' test] ',')* ('*' [tname] (',' tname ['=' test])*
-                     [',' ['**' tname [',']]] | '**' tname [','])
-                     | tfpdef ['=' test] (',' tfpdef ['=' test])* [','])
-
-tname: NAME [':' test]
-tfpdef: tname | '(' tfplist ')'
-tfplist: tfpdef (',' tfpdef)* [',']
-
-# The following definition for varargslist is equivalent to this set of rules:
-#
-#     arguments = argument (',' argument )*
-#     argument = vfpdef ['=' test]
-#     kwargs = '**' vname [',']
-#     args = '*' [vname]
-#     kwonly_kwargs = (',' argument )* [',' [kwargs]]
-#     args_kwonly_kwargs = args kwonly_kwargs | kwargs
-#     poskeyword_args_kwonly_kwargs = arguments [',' [args_kwonly_kwargs]]
-#     vararglist_no_posonly = poskeyword_args_kwonly_kwargs | args_kwonly_kwargs
-#     varargslist = arguments ',' '/' [','[(vararglist_no_posonly)]] | (vararglist_no_posonly)
-#
-# It needs to be fully expanded to allow our LL(1) parser to work on it.
-
-varargslist: vfpdef ['=' test ](',' vfpdef ['=' test])* ',' '/' [',' [
-                     ((vfpdef ['=' test] ',')* ('*' [vname] (',' vname ['=' test])*
-                            [',' ['**' vname [',']]] | '**' vname [','])
-                            | vfpdef ['=' test] (',' vfpdef ['=' test])* [','])
-                     ]] | ((vfpdef ['=' test] ',')*
-                     ('*' [vname] (',' vname ['=' test])*  [',' ['**' vname [',']]]| '**' vname [','])
-                     | vfpdef ['=' test] (',' vfpdef ['=' test])* [','])
-
-vname: NAME
-vfpdef: vname | '(' vfplist ')'
-vfplist: vfpdef (',' vfpdef)* [',']
-
-stmt: simple_stmt | compound_stmt
-simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE
-small_stmt: (expr_stmt | print_stmt  | del_stmt | pass_stmt | flow_stmt |
-             import_stmt | global_stmt | exec_stmt | assert_stmt)
-expr_stmt: testlist_star_expr (annassign | augassign (yield_expr|testlist) |
-                     ('=' (yield_expr|testlist_star_expr))*)
-annassign: ':' test ['=' (yield_expr|testlist_star_expr)]
-testlist_star_expr: (test|star_expr) (',' (test|star_expr))* [',']
-augassign: ('+=' | '-=' | '*=' | '@=' | '/=' | '%=' | '&=' | '|=' | '^=' |
-            '<<=' | '>>=' | '**=' | '//=')
-# For normal and annotated assignments, additional restrictions enforced by the interpreter
-print_stmt: 'print' ( [ test (',' test)* [','] ] |
-                      '>>' test [ (',' test)+ [','] ] )
-del_stmt: 'del' exprlist
-pass_stmt: 'pass'
-flow_stmt: break_stmt | continue_stmt | return_stmt | raise_stmt | yield_stmt
-break_stmt: 'break'
-continue_stmt: 'continue'
-return_stmt: 'return' [testlist_star_expr]
-yield_stmt: yield_expr
-raise_stmt: 'raise' [test ['from' test | ',' test [',' test]]]
-import_stmt: import_name | import_from
-import_name: 'import' dotted_as_names
-import_from: ('from' ('.'* dotted_name | '.'+)
-              'import' ('*' | '(' import_as_names ')' | import_as_names))
-import_as_name: NAME ['as' NAME]
-dotted_as_name: dotted_name ['as' NAME]
-import_as_names: import_as_name (',' import_as_name)* [',']
-dotted_as_names: dotted_as_name (',' dotted_as_name)*
-dotted_name: NAME ('.' NAME)*
-global_stmt: ('global' | 'nonlocal') NAME (',' NAME)*
-exec_stmt: 'exec' expr ['in' test [',' test]]
-assert_stmt: 'assert' test [',' test]
-
-compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | with_stmt | funcdef | classdef | decorated | async_stmt
-async_stmt: ASYNC (funcdef | with_stmt | for_stmt)
-if_stmt: 'if' namedexpr_test ':' suite ('elif' namedexpr_test ':' suite)* ['else' ':' suite]
-while_stmt: 'while' namedexpr_test ':' suite ['else' ':' suite]
-for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite]
-try_stmt: ('try' ':' suite
-           ((except_clause ':' suite)+
-	    ['else' ':' suite]
-	    ['finally' ':' suite] |
-	   'finally' ':' suite))
-with_stmt: 'with' with_item (',' with_item)*  ':' suite
-with_item: test ['as' expr]
-with_var: 'as' expr
-# NB compile.c makes sure that the default except clause is last
-except_clause: 'except' [test [(',' | 'as') test]]
-suite: simple_stmt | NEWLINE INDENT stmt+ DEDENT
-
-# Backward compatibility cruft to support:
-# [ x for x in lambda: True, lambda: False if x() ]
-# even while also allowing:
-# lambda x: 5 if x else 2
-# (But not a mix of the two)
-testlist_safe: old_test [(',' old_test)+ [',']]
-old_test: or_test | old_lambdef
-old_lambdef: 'lambda' [varargslist] ':' old_test
-
-namedexpr_test: test [':=' test]
-test: or_test ['if' or_test 'else' test] | lambdef
-or_test: and_test ('or' and_test)*
-and_test: not_test ('and' not_test)*
-not_test: 'not' not_test | comparison
-comparison: expr (comp_op expr)*
-comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is'|'is' 'not'
-star_expr: '*' expr
-expr: xor_expr ('|' xor_expr)*
-xor_expr: and_expr ('^' and_expr)*
-and_expr: shift_expr ('&' shift_expr)*
-shift_expr: arith_expr (('<<'|'>>') arith_expr)*
-arith_expr: term (('+'|'-') term)*
-term: factor (('*'|'@'|'/'|'%'|'//') factor)*
-factor: ('+'|'-'|'~') factor | power
-power: [AWAIT] atom trailer* ['**' factor]
-atom: ('(' [yield_expr|testlist_gexp] ')' |
-       '[' [listmaker] ']' |
-       '{' [dictsetmaker] '}' |
-       '`' testlist1 '`' |
-       NAME | NUMBER | STRING+ | '.' '.' '.')
-listmaker: (namedexpr_test|star_expr) ( old_comp_for | (',' (namedexpr_test|star_expr))* [','] )
-testlist_gexp: (namedexpr_test|star_expr) ( old_comp_for | (',' (namedexpr_test|star_expr))* [','] )
-lambdef: 'lambda' [varargslist] ':' test
-trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME
-subscriptlist: subscript (',' subscript)* [',']
-subscript: test [':=' test] | [test] ':' [test] [sliceop]
-sliceop: ':' [test]
-exprlist: (expr|star_expr) (',' (expr|star_expr))* [',']
-testlist: test (',' test)* [',']
-dictsetmaker: ( ((test ':' test | '**' expr)
-                 (comp_for | (',' (test ':' test | '**' expr))* [','])) |
-                ((test [':=' test] | star_expr)
-		 (comp_for | (',' (test [':=' test] | star_expr))* [','])) )
-
-classdef: 'class' NAME ['(' [arglist] ')'] ':' suite
-
-arglist: argument (',' argument)* [',']
-
-# "test '=' test" is really "keyword '=' test", but we have no such token.
-# These need to be in a single rule to avoid grammar that is ambiguous
-# to our LL(1) parser. Even though 'test' includes '*expr' in star_expr,
-# we explicitly match '*' here, too, to give it proper precedence.
-# Illegal combinations and orderings are blocked in ast.c:
-# multiple (test comp_for) arguments are blocked; keyword unpackings
-# that precede iterable unpackings are blocked; etc.
-argument: ( test [comp_for] |
-            test ':=' test |
-            test '=' test |
-	    '**' test |
-            '*' test )
-
-comp_iter: comp_for | comp_if
-comp_for: [ASYNC] 'for' exprlist 'in' or_test [comp_iter]
-comp_if: 'if' old_test [comp_iter]
-
-# As noted above, testlist_safe extends the syntax allowed in list
-# comprehensions and generators. We can't use it indiscriminately in all
-# derivations using a comp_for-like pattern because the testlist_safe derivation
-# contains comma which clashes with trailing comma in arglist.
-#
-# This was an issue because the parser would not follow the correct derivation
-# when parsing syntactically valid Python code. Since testlist_safe was created
-# specifically to handle list comprehensions and generator expressions enclosed
-# with parentheses, it's safe to only use it in those. That avoids the issue; we
-# can parse code like set(x for x in [],).
-#
-# The syntax supported by this set of rules is not a valid Python 3 syntax,
-# hence the prefix "old".
-#
-# See https://bugs.python.org/issue27494
-old_comp_iter: old_comp_for | old_comp_if
-old_comp_for: [ASYNC] 'for' exprlist 'in' testlist_safe [old_comp_iter]
-old_comp_if: 'if' old_test [old_comp_iter]
-
-testlist1: test (',' test)*
-
-# not used in grammar, but may appear in "node" passed from Parser to Compiler
-encoding_decl: NAME
-
-yield_expr: 'yield' [yield_arg]
-yield_arg: 'from' test | testlist_star_expr