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4668b000a1
This introduces:
- A new operator // that means floor division (the kind of division
where 1/2 is 0).
- The "future division" statement ("from __future__ import division)
which changes the meaning of the / operator to implement "true
division" (where 1/2 is 0.5).
- New overloadable operators __truediv__ and __floordiv__.
- New slots in the PyNumberMethods struct for true and floor division,
new abstract APIs for them, new opcodes, and so on.
I emphasize that without the future division statement, the semantics
of / will remain unchanged until Python 3.0.
Not yet implemented are warnings (default off) when / is used with int
or long arguments.
This has been on display since 7/31 as SF patch #443474.
Flames to /dev/null.
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
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/* Token types */
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#ifndef Py_TOKEN_H
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#define Py_TOKEN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ENDMARKER 0
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#define NAME 1
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#define NUMBER 2
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#define STRING 3
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#define NEWLINE 4
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#define INDENT 5
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#define DEDENT 6
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#define LPAR 7
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#define RPAR 8
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#define LSQB 9
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#define RSQB 10
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#define COLON 11
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#define COMMA 12
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#define SEMI 13
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#define PLUS 14
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#define MINUS 15
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#define STAR 16
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#define SLASH 17
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#define VBAR 18
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#define AMPER 19
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#define LESS 20
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#define GREATER 21
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#define EQUAL 22
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#define DOT 23
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#define PERCENT 24
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#define BACKQUOTE 25
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#define LBRACE 26
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#define RBRACE 27
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#define EQEQUAL 28
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#define NOTEQUAL 29
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#define LESSEQUAL 30
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#define GREATEREQUAL 31
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#define TILDE 32
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#define CIRCUMFLEX 33
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#define LEFTSHIFT 34
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#define RIGHTSHIFT 35
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#define DOUBLESTAR 36
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#define PLUSEQUAL 37
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#define MINEQUAL 38
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#define STAREQUAL 39
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#define SLASHEQUAL 40
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#define PERCENTEQUAL 41
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#define AMPEREQUAL 42
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#define VBAREQUAL 43
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#define CIRCUMFLEXEQUAL 44
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#define LEFTSHIFTEQUAL 45
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#define RIGHTSHIFTEQUAL 46
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#define DOUBLESTAREQUAL 47
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#define DOUBLESLASH 48
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#define DOUBLESLASHEQUAL 49
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/* Don't forget to update the table _PyParser_TokenNames in tokenizer.c! */
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#define OP 50
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#define ERRORTOKEN 51
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#define N_TOKENS 52
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/* Special definitions for cooperation with parser */
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#define NT_OFFSET 256
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#define ISTERMINAL(x) ((x) < NT_OFFSET)
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#define ISNONTERMINAL(x) ((x) >= NT_OFFSET)
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#define ISEOF(x) ((x) == ENDMARKER)
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extern DL_IMPORT(char *) _PyParser_TokenNames[]; /* Token names */
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extern DL_IMPORT(int) PyToken_OneChar(int);
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extern DL_IMPORT(int) PyToken_TwoChars(int, int);
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extern DL_IMPORT(int) PyToken_ThreeChars(int, int, int);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_TOKEN_H */
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