diff options
Diffstat (limited to 'lib/python2.7/lib2to3/Grammar.txt')
| -rw-r--r-- | lib/python2.7/lib2to3/Grammar.txt | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/lib/python2.7/lib2to3/Grammar.txt b/lib/python2.7/lib2to3/Grammar.txt deleted file mode 100644 index 1e1f24c..0000000 --- a/lib/python2.7/lib2to3/Grammar.txt +++ /dev/null @@ -1,158 +0,0 @@ -# Grammar for 2to3. This grammar supports Python 2.x and 3.x. - -# Note: Changing the grammar specified in this file will most likely -# require corresponding changes in the parser module -# (../Modules/parsermodule.c). If you can't make the changes to -# that module yourself, please co-ordinate the required changes -# with someone who can; ask around on python-dev for help. Fred -# Drake <fdrake@acm.org> will probably be listening there. - -# NOTE WELL: You should also follow all the steps listed in PEP 306, -# "How to Change Python's Grammar" - -# Commands for Kees Blom's railroad program -#diagram:token NAME -#diagram:token NUMBER -#diagram:token STRING -#diagram:token NEWLINE -#diagram:token ENDMARKER -#diagram:token INDENT -#diagram:output\input python.bla -#diagram:token DEDENT -#diagram:output\textwidth 20.04cm\oddsidemargin 0.0cm\evensidemargin 0.0cm -#diagram:rules - -# 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: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE -decorators: decorator+ -decorated: decorators (classdef | funcdef) -funcdef: 'def' NAME parameters ['->' test] ':' suite -parameters: '(' [typedargslist] ')' -typedargslist: ((tfpdef ['=' test] ',')* - ('*' [tname] (',' tname ['=' test])* [',' '**' tname] | '**' tname) - | tfpdef ['=' test] (',' tfpdef ['=' test])* [',']) -tname: NAME [':' test] -tfpdef: tname | '(' tfplist ')' -tfplist: tfpdef (',' tfpdef)* [','] -varargslist: ((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 (augassign (yield_expr|testlist) | - ('=' (yield_expr|testlist_star_expr))*) -testlist_star_expr: (test|star_expr) (',' (test|star_expr))* [','] -augassign: ('+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' | - '<<=' | '>>=' | '**=' | '//=') -# For normal 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] -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 -if_stmt: 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite] -while_stmt: 'while' 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 - -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: atom trailer* ['**' factor] -atom: ('(' [yield_expr|testlist_gexp] ')' | - '[' [listmaker] ']' | - '{' [dictsetmaker] '}' | - '`' testlist1 '`' | - NAME | NUMBER | STRING+ | '.' '.' '.') -listmaker: (test|star_expr) ( comp_for | (',' (test|star_expr))* [','] ) -testlist_gexp: (test|star_expr) ( comp_for | (',' (test|star_expr))* [','] ) -lambdef: 'lambda' [varargslist] ':' test -trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME -subscriptlist: subscript (',' subscript)* [','] -subscript: test | [test] ':' [test] [sliceop] -sliceop: ':' [test] -exprlist: (expr|star_expr) (',' (expr|star_expr))* [','] -testlist: test (',' test)* [','] -dictsetmaker: ( (test ':' test (comp_for | (',' test ':' test)* [','])) | - (test (comp_for | (',' test)* [','])) ) - -classdef: 'class' NAME ['(' [arglist] ')'] ':' suite - -arglist: (argument ',')* (argument [','] - |'*' test (',' argument)* [',' '**' test] - |'**' test) -argument: test [comp_for] | test '=' test # Really [keyword '='] test - -comp_iter: comp_for | comp_if -comp_for: 'for' exprlist 'in' testlist_safe [comp_iter] -comp_if: 'if' old_test [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' [testlist] |