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Removed 'dir' statement. 

Function call argument is a testlist instead of exprlist.
This commit is contained in:
Guido van Rossum 1991-01-21 15:07:21 +00:00
parent c83fd37341
commit 4dae216784
1 changed files with 7 additions and 6 deletions
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13
Grammar/Grammar
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@ -1,4 +1,8 @@
# Grammar for Python, version 3 # Grammar for Python, version 4
# Changes compared to version 3:
# Removed 'dir' statement.
# Function call argument is a testlist instead of exprlist.
# Changes compared to version 2: # Changes compared to version 2:
# The syntax of Boolean operations is changed to use more # The syntax of Boolean operations is changed to use more
@ -11,8 +15,6 @@
# 'import' and 'def' aren't special any more; # 'import' and 'def' aren't special any more;
# added 'from' NAME option on import clause, and '*' to import all; # added 'from' NAME option on import clause, and '*' to import all;
# added class definition. # added class definition.
# TO DO:
# replace 'dir' by something more general?
# Start symbols for the grammar: # Start symbols for the grammar:
# single_input is a single interactive statement; # single_input is a single interactive statement;
@ -32,12 +34,11 @@ fplist: fpdef (',' fpdef)*
fpdef: NAME | '(' fplist ')' fpdef: NAME | '(' fplist ')'
stmt: simple_stmt | compound_stmt stmt: simple_stmt | compound_stmt
simple_stmt: expr_stmt | print_stmt | pass_stmt | del_stmt | dir_stmt | flow_stmt | import_stmt simple_stmt: expr_stmt | print_stmt | pass_stmt | del_stmt | flow_stmt | import_stmt
expr_stmt: (exprlist '=')* exprlist NEWLINE expr_stmt: (exprlist '=')* exprlist NEWLINE
# For assignments, additional restrictions enforced by the interpreter # For assignments, additional restrictions enforced by the interpreter
print_stmt: 'print' (test ',')* [test] NEWLINE print_stmt: 'print' (test ',')* [test] NEWLINE
del_stmt: 'del' exprlist NEWLINE del_stmt: 'del' exprlist NEWLINE
dir_stmt: 'dir' [expr] NEWLINE
pass_stmt: 'pass' NEWLINE pass_stmt: 'pass' NEWLINE
flow_stmt: break_stmt | return_stmt | raise_stmt flow_stmt: break_stmt | return_stmt | raise_stmt
break_stmt: 'break' NEWLINE break_stmt: 'break' NEWLINE
@ -61,7 +62,7 @@ expr: term (('+'|'-') term)*
term: factor (('*'|'/'|'%') factor)* term: factor (('*'|'/'|'%') factor)*
factor: ('+'|'-') factor | atom trailer* factor: ('+'|'-') factor | atom trailer*
atom: '(' [testlist] ')' | '[' [testlist] ']' | '{' '}' | '`' testlist '`' | NAME | NUMBER | STRING atom: '(' [testlist] ')' | '[' [testlist] ']' | '{' '}' | '`' testlist '`' | NAME | NUMBER | STRING
trailer: '(' [exprlist] ')' | '[' subscript ']' | '.' NAME trailer: '(' [testlist] ')' | '[' subscript ']' | '.' NAME
subscript: expr | [expr] ':' [expr] subscript: expr | [expr] ':' [expr]
exprlist: expr (',' expr)* [','] exprlist: expr (',' expr)* [',']
testlist: test (',' test)* [','] testlist: test (',' test)* [',']