Added 'global' and new class syntax.
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@ -1,4 +1,8 @@
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# Grammar for Python, version 7
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# Grammar for Python, version 8
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# Changes since version 7:
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# New syntax to specify base classes (but old syntax retained for now)
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# 'global' statement (valid only in functions but not enforced here)
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# Changes since version 6:
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# Add logical operators '|', '^', '&' and '~'
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@ -52,7 +56,7 @@ fpdef: NAME | '(' fplist ')'
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stmt: simple_stmt | compound_stmt
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simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE
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small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt | flow_stmt | import_stmt
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small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt | flow_stmt | import_stmt | global_stmt
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expr_stmt: (exprlist '=')* exprlist
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# For assignments, additional restrictions enforced by the interpreter
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print_stmt: 'print' (test ',')* [test]
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@ -64,6 +68,7 @@ continue_stmt: 'continue'
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return_stmt: 'return' [testlist]
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raise_stmt: 'raise' test [',' test]
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import_stmt: 'import' NAME (',' NAME)* | 'from' NAME 'import' ('*' | NAME (',' NAME)*)
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global_stmt: 'global' NAME (',' NAME)*
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compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | funcdef | classdef
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if_stmt: 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite]
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while_stmt: 'while' test ':' suite ['else' ':' suite]
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@ -91,6 +96,9 @@ exprlist: expr (',' expr)* [',']
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testlist: test (',' test)* [',']
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dictmaker: test ':' test (',' test ':' test)* [',']
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classdef: 'class' NAME parameters ['=' baselist] ':' suite
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# New class syntax should be:
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# classdef: class NAME ['(' testlist ')'] ':' suite
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# but merged with old syntax for compatibility it becomes:
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classdef: 'class' NAME ['(' testlist ')' |'(' ')' ['=' baselist]] ':' suite
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baselist: atom arguments (',' atom arguments)*
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arguments: '(' [testlist] ')'
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arguments: '(' ')'
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