| # ------------------------------------------------------------------------------- |
| # op2mark.py |
| # |
| # converting an operator to its mark |
| # |
| # Copyright (C) 2013, Shinya Takamaeda-Yamazaki |
| # License: Apache 2.0 |
| # ------------------------------------------------------------------------------- |
| |
| operator_mark = { |
| 'Uminus': '-', 'Ulnot': '!', 'Unot': '~', 'Uand': '&', 'Unand': '~&', |
| 'Uor': '|', 'Unor': '~|', 'Uxor': '^', 'Uxnor': '~^', |
| 'Power': '**', 'Times': '*', 'Divide': '/', 'Mod': '%', |
| 'Plus': '+', 'Minus': '-', |
| 'Sll': '<<', 'Srl': '>>', 'Sla': '<<<', 'Sra': '>>>', |
| 'LessThan': '<', 'GreaterThan': '>', 'LessEq': '<=', 'GreaterEq': '>=', |
| 'Eq': '==', 'NotEq': '!=', 'Eql': '===', 'NotEql': '!==', |
| 'And': '&', 'Xor': '^', 'Xnor': '~^', |
| 'Or': '|', 'Land': '&&', 'Lor': '||' |
| } |
| |
| |
| def op2mark(op): |
| if op not in operator_mark: |
| return None |
| return operator_mark[op] |
| |
| |
| operator_order = { |
| 'Uminus': 0, 'Ulnot': 0, 'Unot': 0, 'Uand': 0, 'Unand': 0, |
| 'Uor': 0, 'Unor': 0, 'Uxor': 0, 'Uxnor': 0, |
| 'Power': 1, |
| 'Times': 2, 'Divide': 2, 'Mod': 2, |
| 'Plus': 3, 'Minus': 3, |
| 'Sll': 4, 'Srl': 4, 'Sla': 4, 'Sra': 4, |
| 'LessThan': 5, 'GreaterThan': 5, 'LessEq': 5, 'GreaterEq': 5, |
| 'Eq': 6, 'NotEq': 6, 'Eql': 6, 'NotEql': 6, |
| 'And': 7, |
| 'Xor': 8, 'Xnor': 8, |
| 'Or': 9, |
| 'Land': 10, |
| 'Lor': 11 |
| } |
| |
| |
| def op2order(op): |
| if op not in operator_order: |
| return None |
| return operator_order[op] |
