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0d2711a6 LG |
1 | ## @file\r |
2 | # This file is used to parse and evaluate expression in directive or PCD value.\r | |
3 | #\r | |
35f613d9 | 4 | # Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>\r |
0d2711a6 LG |
5 | # This program and the accompanying materials\r |
6 | # are licensed and made available under the terms and conditions of the BSD License\r | |
7 | # which accompanies this distribution. The full text of the license may be found at\r | |
8 | # http://opensource.org/licenses/bsd-license.php\r | |
9 | #\r | |
10 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | ## Import Modules\r | |
14 | #\r | |
15 | from Common.GlobalData import *\r | |
16 | from CommonDataClass.Exceptions import BadExpression\r | |
0d2711a6 | 17 | from CommonDataClass.Exceptions import WrnExpression\r |
8565b582 | 18 | from Misc import GuidStringToGuidStructureString, ParseFieldValue, IsFieldValueAnArray\r |
726c501c YZ |
19 | import Common.EdkLogger as EdkLogger\r |
20 | import copy\r | |
656d2539 | 21 | from Common.DataType import *\r |
0d2711a6 LG |
22 | \r |
23 | ERR_STRING_EXPR = 'This operator cannot be used in string expression: [%s].'\r | |
24 | ERR_SNYTAX = 'Syntax error, the rest of expression cannot be evaluated: [%s].'\r | |
25 | ERR_MATCH = 'No matching right parenthesis.'\r | |
26 | ERR_STRING_TOKEN = 'Bad string token: [%s].'\r | |
27 | ERR_MACRO_TOKEN = 'Bad macro token: [%s].'\r | |
28 | ERR_EMPTY_TOKEN = 'Empty token is not allowed.'\r | |
29 | ERR_PCD_RESOLVE = 'PCD token cannot be resolved: [%s].'\r | |
30 | ERR_VALID_TOKEN = 'No more valid token found from rest of string: [%s].'\r | |
31 | ERR_EXPR_TYPE = 'Different types found in expression.'\r | |
32 | ERR_OPERATOR_UNSUPPORT = 'Unsupported operator: [%s]'\r | |
33 | ERR_REL_NOT_IN = 'Expect "IN" after "not" operator.'\r | |
34 | WRN_BOOL_EXPR = 'Operand of boolean type cannot be used in arithmetic expression.'\r | |
35 | WRN_EQCMP_STR_OTHERS = '== Comparison between Operand of string type and Boolean/Number Type always return False.'\r | |
36 | WRN_NECMP_STR_OTHERS = '!= Comparison between Operand of string type and Boolean/Number Type always return True.'\r | |
37 | ERR_RELCMP_STR_OTHERS = 'Operator taking Operand of string type and Boolean/Number Type is not allowed: [%s].'\r | |
38 | ERR_STRING_CMP = 'Unicode string and general string cannot be compared: [%s %s %s]'\r | |
39 | ERR_ARRAY_TOKEN = 'Bad C array or C format GUID token: [%s].'\r | |
40 | ERR_ARRAY_ELE = 'This must be HEX value for NList or Array: [%s].'\r | |
d0acc87a | 41 | ERR_EMPTY_EXPR = 'Empty expression is not allowed.'\r |
64b2609f | 42 | ERR_IN_OPERAND = 'Macro after IN operator can only be: $(FAMILY), $(ARCH), $(TOOL_CHAIN_TAG) and $(TARGET).'\r |
0d2711a6 | 43 | \r |
1f901a89 | 44 | __ValidString = re.compile(r'[_a-zA-Z][_0-9a-zA-Z]*$')\r |
38504ad3 CJ |
45 | _ReLabel = re.compile('LABEL\((\w+)\)')\r |
46 | _ReOffset = re.compile('OFFSET_OF\((\w+)\)')\r | |
e6c2468a | 47 | PcdPattern = re.compile(r'[_a-zA-Z][0-9A-Za-z_]*\.[_a-zA-Z][0-9A-Za-z_]*$')\r |
1f901a89 | 48 | \r |
0d2711a6 LG |
49 | ## SplitString\r |
50 | # Split string to list according double quote\r | |
51 | # For example: abc"de\"f"ghi"jkl"mn will be: ['abc', '"de\"f"', 'ghi', '"jkl"', 'mn']\r | |
52 | #\r | |
53 | def SplitString(String):\r | |
ea927d2f | 54 | # There might be escaped quote: "abc\"def\\\"ghi", 'abc\'def\\\'ghi'\r |
0d2711a6 | 55 | RetList = []\r |
ea927d2f FY |
56 | InSingleQuote = False\r |
57 | InDoubleQuote = False\r | |
0d2711a6 | 58 | Item = ''\r |
ae4cc2b0 | 59 | for i, ch in enumerate(String):\r |
ea927d2f | 60 | if ch == '"' and not InSingleQuote:\r |
ae4cc2b0 | 61 | if String[i - 1] != '\\':\r |
ea927d2f FY |
62 | InDoubleQuote = not InDoubleQuote\r |
63 | if not InDoubleQuote:\r | |
64 | Item += String[i]\r | |
65 | RetList.append(Item)\r | |
66 | Item = ''\r | |
67 | continue\r | |
68 | if Item:\r | |
69 | RetList.append(Item)\r | |
70 | Item = ''\r | |
71 | elif ch == "'" and not InDoubleQuote:\r | |
ae4cc2b0 | 72 | if String[i - 1] != '\\':\r |
ea927d2f FY |
73 | InSingleQuote = not InSingleQuote\r |
74 | if not InSingleQuote:\r | |
0d2711a6 LG |
75 | Item += String[i]\r |
76 | RetList.append(Item)\r | |
77 | Item = ''\r | |
78 | continue\r | |
79 | if Item:\r | |
80 | RetList.append(Item)\r | |
81 | Item = ''\r | |
82 | Item += String[i]\r | |
ea927d2f | 83 | if InSingleQuote or InDoubleQuote:\r |
0d2711a6 LG |
84 | raise BadExpression(ERR_STRING_TOKEN % Item)\r |
85 | if Item:\r | |
86 | RetList.append(Item)\r | |
87 | return RetList\r | |
88 | \r | |
3be421e9 FY |
89 | def SplitPcdValueString(String):\r |
90 | # There might be escaped comma in GUID() or DEVICE_PATH() or " "\r | |
91 | # or ' ' or L' ' or L" "\r | |
3be421e9 FY |
92 | RetList = []\r |
93 | InParenthesis = 0\r | |
94 | InSingleQuote = False\r | |
95 | InDoubleQuote = False\r | |
96 | Item = ''\r | |
ae4cc2b0 | 97 | for i, ch in enumerate(String):\r |
3be421e9 FY |
98 | if ch == '(':\r |
99 | InParenthesis += 1\r | |
3e8bab96 | 100 | elif ch == ')':\r |
3be421e9 FY |
101 | if InParenthesis:\r |
102 | InParenthesis -= 1\r | |
103 | else:\r | |
104 | raise BadExpression(ERR_STRING_TOKEN % Item)\r | |
3e8bab96 | 105 | elif ch == '"' and not InSingleQuote:\r |
3be421e9 FY |
106 | if String[i-1] != '\\':\r |
107 | InDoubleQuote = not InDoubleQuote\r | |
3e8bab96 | 108 | elif ch == "'" and not InDoubleQuote:\r |
3be421e9 FY |
109 | if String[i-1] != '\\':\r |
110 | InSingleQuote = not InSingleQuote\r | |
3e8bab96 | 111 | elif ch == ',':\r |
3be421e9 FY |
112 | if InParenthesis or InSingleQuote or InDoubleQuote:\r |
113 | Item += String[i]\r | |
114 | continue\r | |
115 | elif Item:\r | |
116 | RetList.append(Item)\r | |
117 | Item = ''\r | |
118 | continue\r | |
119 | Item += String[i]\r | |
120 | if InSingleQuote or InDoubleQuote or InParenthesis:\r | |
121 | raise BadExpression(ERR_STRING_TOKEN % Item)\r | |
122 | if Item:\r | |
123 | RetList.append(Item)\r | |
124 | return RetList\r | |
125 | \r | |
1f901a89 CJ |
126 | def IsValidCName(Str):\r |
127 | return True if __ValidString.match(Str) else False\r | |
5ac0a545 | 128 | \r |
8565b582 | 129 | def BuildOptionValue(PcdValue, GuidDict):\r |
8565b582 YZ |
130 | if PcdValue.startswith('H'):\r |
131 | InputValue = PcdValue[1:]\r | |
132 | elif PcdValue.startswith("L'") or PcdValue.startswith("'"):\r | |
133 | InputValue = PcdValue\r | |
134 | elif PcdValue.startswith('L'):\r | |
135 | InputValue = 'L"' + PcdValue[1:] + '"'\r | |
136 | else:\r | |
137 | InputValue = PcdValue\r | |
138 | if IsFieldValueAnArray(InputValue):\r | |
8565b582 | 139 | try:\r |
656d2539 | 140 | PcdValue = ValueExpressionEx(InputValue, TAB_VOID, GuidDict)(True)\r |
8565b582 YZ |
141 | except:\r |
142 | pass\r | |
143 | return PcdValue\r | |
144 | \r | |
0d2711a6 LG |
145 | ## ReplaceExprMacro\r |
146 | #\r | |
147 | def ReplaceExprMacro(String, Macros, ExceptionList = None):\r | |
148 | StrList = SplitString(String)\r | |
149 | for i, String in enumerate(StrList):\r | |
150 | InQuote = False\r | |
151 | if String.startswith('"'):\r | |
152 | InQuote = True\r | |
153 | MacroStartPos = String.find('$(')\r | |
154 | if MacroStartPos < 0:\r | |
9eb87141 | 155 | for Pcd in gPlatformPcds:\r |
c8d07c5e YZ |
156 | if Pcd in String:\r |
157 | if Pcd not in gConditionalPcds:\r | |
158 | gConditionalPcds.append(Pcd)\r | |
0d2711a6 LG |
159 | continue\r |
160 | RetStr = ''\r | |
161 | while MacroStartPos >= 0:\r | |
162 | RetStr = String[0:MacroStartPos]\r | |
163 | MacroEndPos = String.find(')', MacroStartPos)\r | |
164 | if MacroEndPos < 0:\r | |
165 | raise BadExpression(ERR_MACRO_TOKEN % String[MacroStartPos:])\r | |
166 | Macro = String[MacroStartPos+2:MacroEndPos]\r | |
167 | if Macro not in Macros:\r | |
168 | # From C reference manual:\r | |
169 | # If an undefined macro name appears in the constant-expression of\r | |
170 | # !if or !elif, it is replaced by the integer constant 0.\r | |
171 | RetStr += '0'\r | |
64b2609f LG |
172 | elif not InQuote:\r |
173 | Tklst = RetStr.split()\r | |
4d601fc6 | 174 | if Tklst and Tklst[-1] in {'IN', 'in'} and ExceptionList and Macro not in ExceptionList:\r |
64b2609f | 175 | raise BadExpression(ERR_IN_OPERAND)\r |
0d2711a6 LG |
176 | # Make sure the macro in exception list is encapsulated by double quote\r |
177 | # For example: DEFINE ARCH = IA32 X64\r | |
178 | # $(ARCH) is replaced with "IA32 X64"\r | |
64b2609f LG |
179 | if ExceptionList and Macro in ExceptionList:\r |
180 | RetStr += '"' + Macros[Macro] + '"'\r | |
181 | elif Macros[Macro].strip():\r | |
0d2711a6 LG |
182 | RetStr += Macros[Macro]\r |
183 | else:\r | |
184 | RetStr += '""'\r | |
64b2609f LG |
185 | else:\r |
186 | RetStr += Macros[Macro]\r | |
0d2711a6 LG |
187 | RetStr += String[MacroEndPos+1:]\r |
188 | String = RetStr\r | |
189 | MacroStartPos = String.find('$(')\r | |
190 | StrList[i] = RetStr\r | |
191 | return ''.join(StrList)\r | |
192 | \r | |
726c501c YZ |
193 | # transfer int to string for in/not in expression\r |
194 | def IntToStr(Value):\r | |
195 | StrList = []\r | |
196 | while Value > 0:\r | |
197 | StrList.append(chr(Value & 0xff))\r | |
198 | Value = Value >> 8\r | |
199 | Value = '"' + ''.join(StrList) + '"'\r | |
200 | return Value\r | |
201 | \r | |
64b2609f LG |
202 | SupportedInMacroList = ['TARGET', 'TOOL_CHAIN_TAG', 'ARCH', 'FAMILY']\r |
203 | \r | |
b2aeaf57 CJ |
204 | class BaseExpression(object):\r |
205 | def __init__(self, *args, **kwargs):\r | |
206 | super(BaseExpression, self).__init__()\r | |
207 | \r | |
208 | # Check if current token matches the operators given from parameter\r | |
209 | def _IsOperator(self, OpSet):\r | |
210 | Idx = self._Idx\r | |
211 | self._GetOperator()\r | |
212 | if self._Token in OpSet:\r | |
213 | if self._Token in self.LogicalOperators:\r | |
214 | self._Token = self.LogicalOperators[self._Token]\r | |
215 | return True\r | |
216 | self._Idx = Idx\r | |
217 | return False\r | |
218 | \r | |
219 | class ValueExpression(BaseExpression):\r | |
0d2711a6 LG |
220 | # Logical operator mapping\r |
221 | LogicalOperators = {\r | |
222 | '&&' : 'and', '||' : 'or',\r | |
223 | '!' : 'not', 'AND': 'and',\r | |
224 | 'OR' : 'or' , 'NOT': 'not',\r | |
225 | 'XOR': '^' , 'xor': '^',\r | |
226 | 'EQ' : '==' , 'NE' : '!=',\r | |
227 | 'GT' : '>' , 'LT' : '<',\r | |
228 | 'GE' : '>=' , 'LE' : '<=',\r | |
229 | 'IN' : 'in'\r | |
230 | }\r | |
231 | \r | |
bc0d7233 | 232 | NonLetterOpLst = ['+', '-', '*', '/', '%', '&', '|', '^', '~', '<<', '>>', '!', '=', '>', '<', '?', ':']\r |
0d2711a6 | 233 | \r |
0d2711a6 LG |
234 | \r |
235 | SymbolPattern = re.compile("("\r | |
236 | "\$\([A-Z][A-Z0-9_]*\)|\$\(\w+\.\w+\)|\w+\.\w+|"\r | |
237 | "&&|\|\||!(?!=)|"\r | |
238 | "(?<=\W)AND(?=\W)|(?<=\W)OR(?=\W)|(?<=\W)NOT(?=\W)|(?<=\W)XOR(?=\W)|"\r | |
239 | "(?<=\W)EQ(?=\W)|(?<=\W)NE(?=\W)|(?<=\W)GT(?=\W)|(?<=\W)LT(?=\W)|(?<=\W)GE(?=\W)|(?<=\W)LE(?=\W)"\r | |
240 | ")")\r | |
241 | \r | |
242 | @staticmethod\r | |
243 | def Eval(Operator, Oprand1, Oprand2 = None):\r | |
244 | WrnExp = None\r | |
d0acc87a | 245 | \r |
4d601fc6 | 246 | if Operator not in {"==", "!=", ">=", "<=", ">", "<", "in", "not in"} and \\r |
9efe8d60 YF |
247 | (type(Oprand1) == type('') or type(Oprand2) == type('')):\r |
248 | raise BadExpression(ERR_STRING_EXPR % Operator)\r | |
4d601fc6 | 249 | if Operator in {'in', 'not in'}:\r |
726c501c YZ |
250 | if type(Oprand1) != type(''):\r |
251 | Oprand1 = IntToStr(Oprand1)\r | |
252 | if type(Oprand2) != type(''):\r | |
253 | Oprand2 = IntToStr(Oprand2)\r | |
0d2711a6 LG |
254 | TypeDict = {\r |
255 | type(0) : 0,\r | |
256 | type(0L) : 0,\r | |
257 | type('') : 1,\r | |
258 | type(True) : 2\r | |
259 | }\r | |
260 | \r | |
261 | EvalStr = ''\r | |
4d601fc6 | 262 | if Operator in {"!", "NOT", "not"}:\r |
0d2711a6 LG |
263 | if type(Oprand1) == type(''):\r |
264 | raise BadExpression(ERR_STRING_EXPR % Operator)\r | |
265 | EvalStr = 'not Oprand1'\r | |
4d601fc6 | 266 | elif Operator in {"~"}:\r |
5e06f1a0 YZ |
267 | if type(Oprand1) == type(''):\r |
268 | raise BadExpression(ERR_STRING_EXPR % Operator)\r | |
269 | EvalStr = '~ Oprand1'\r | |
0d2711a6 | 270 | else:\r |
4d601fc6 | 271 | if Operator in {"+", "-"} and (type(True) in {type(Oprand1), type(Oprand2)}):\r |
0d2711a6 LG |
272 | # Boolean in '+'/'-' will be evaluated but raise warning\r |
273 | WrnExp = WrnExpression(WRN_BOOL_EXPR)\r | |
4d601fc6 | 274 | elif type('') in {type(Oprand1), type(Oprand2)} and type(Oprand1)!= type(Oprand2):\r |
0d2711a6 LG |
275 | # == between string and number/boolean will always return False, != return True\r |
276 | if Operator == "==":\r | |
277 | WrnExp = WrnExpression(WRN_EQCMP_STR_OTHERS)\r | |
278 | WrnExp.result = False\r | |
279 | raise WrnExp\r | |
280 | elif Operator == "!=":\r | |
281 | WrnExp = WrnExpression(WRN_NECMP_STR_OTHERS)\r | |
282 | WrnExp.result = True\r | |
283 | raise WrnExp\r | |
284 | else:\r | |
285 | raise BadExpression(ERR_RELCMP_STR_OTHERS % Operator)\r | |
d0acc87a | 286 | elif TypeDict[type(Oprand1)] != TypeDict[type(Oprand2)]:\r |
4d601fc6 | 287 | if Operator in {"==", "!=", ">=", "<=", ">", "<"} and set((TypeDict[type(Oprand1)], TypeDict[type(Oprand2)])) == set((TypeDict[type(True)], TypeDict[type(0)])):\r |
0d2711a6 LG |
288 | # comparison between number and boolean is allowed\r |
289 | pass\r | |
4d601fc6 | 290 | elif Operator in {'&', '|', '^', "and", "or"} and set((TypeDict[type(Oprand1)], TypeDict[type(Oprand2)])) == set((TypeDict[type(True)], TypeDict[type(0)])):\r |
0d2711a6 | 291 | # bitwise and logical operation between number and boolean is allowed\r |
d0acc87a | 292 | pass\r |
0d2711a6 LG |
293 | else:\r |
294 | raise BadExpression(ERR_EXPR_TYPE)\r | |
295 | if type(Oprand1) == type('') and type(Oprand2) == type(''):\r | |
296 | if (Oprand1.startswith('L"') and not Oprand2.startswith('L"')) or \\r | |
297 | (not Oprand1.startswith('L"') and Oprand2.startswith('L"')):\r | |
298 | raise BadExpression(ERR_STRING_CMP % (Oprand1, Operator, Oprand2))\r | |
299 | if 'in' in Operator and type(Oprand2) == type(''):\r | |
300 | Oprand2 = Oprand2.split()\r | |
301 | EvalStr = 'Oprand1 ' + Operator + ' Oprand2'\r | |
302 | \r | |
303 | # Local symbols used by built in eval function\r | |
304 | Dict = {\r | |
305 | 'Oprand1' : Oprand1,\r | |
306 | 'Oprand2' : Oprand2\r | |
307 | }\r | |
308 | try:\r | |
309 | Val = eval(EvalStr, {}, Dict)\r | |
5b0671c1 | 310 | except Exception as Excpt:\r |
0d2711a6 LG |
311 | raise BadExpression(str(Excpt))\r |
312 | \r | |
4d601fc6 | 313 | if Operator in {'and', 'or'}:\r |
0d2711a6 LG |
314 | if Val:\r |
315 | Val = True\r | |
316 | else:\r | |
317 | Val = False\r | |
d0acc87a | 318 | \r |
0d2711a6 LG |
319 | if WrnExp:\r |
320 | WrnExp.result = Val\r | |
321 | raise WrnExp\r | |
322 | return Val\r | |
323 | \r | |
324 | def __init__(self, Expression, SymbolTable={}):\r | |
b2aeaf57 | 325 | super(ValueExpression, self).__init__(self, Expression, SymbolTable)\r |
0d2711a6 LG |
326 | self._NoProcess = False\r |
327 | if type(Expression) != type(''):\r | |
328 | self._Expr = Expression\r | |
329 | self._NoProcess = True\r | |
330 | return\r | |
331 | \r | |
332 | self._Expr = ReplaceExprMacro(Expression.strip(),\r | |
333 | SymbolTable,\r | |
64b2609f | 334 | SupportedInMacroList)\r |
0d2711a6 LG |
335 | \r |
336 | if not self._Expr.strip():\r | |
d0acc87a | 337 | raise BadExpression(ERR_EMPTY_EXPR)\r |
0d2711a6 LG |
338 | \r |
339 | #\r | |
340 | # The symbol table including PCD and macro mapping\r | |
341 | #\r | |
726c501c | 342 | self._Symb = copy.deepcopy(SymbolTable)\r |
0d2711a6 LG |
343 | self._Symb.update(self.LogicalOperators)\r |
344 | self._Idx = 0\r | |
345 | self._Len = len(self._Expr)\r | |
346 | self._Token = ''\r | |
d0acc87a | 347 | self._WarnExcept = None\r |
0d2711a6 LG |
348 | \r |
349 | # Literal token without any conversion\r | |
350 | self._LiteralToken = ''\r | |
351 | \r | |
352 | # Public entry for this class\r | |
d0acc87a LG |
353 | # @param RealValue: False: only evaluate if the expression is true or false, used for conditional expression\r |
354 | # True : return the evaluated str(value), used for PCD value\r | |
355 | #\r | |
356 | # @return: True or False if RealValue is False\r | |
357 | # Evaluated value of string format if RealValue is True\r | |
358 | #\r | |
4afd3d04 | 359 | def __call__(self, RealValue=False, Depth=0):\r |
0d2711a6 LG |
360 | if self._NoProcess:\r |
361 | return self._Expr\r | |
362 | \r | |
4afd3d04 LG |
363 | self._Depth = Depth\r |
364 | \r | |
d0acc87a | 365 | self._Expr = self._Expr.strip()\r |
4afd3d04 | 366 | if RealValue and Depth == 0:\r |
d0acc87a LG |
367 | self._Token = self._Expr\r |
368 | if self.__IsNumberToken():\r | |
369 | return self._Expr\r | |
35f613d9 | 370 | Token = ''\r |
25918452 LG |
371 | try:\r |
372 | Token = self._GetToken()\r | |
25918452 LG |
373 | except BadExpression:\r |
374 | pass\r | |
35f613d9 | 375 | if type(Token) == type('') and Token.startswith('{') and Token.endswith('}') and self._Idx >= self._Len:\r |
35f613d9 | 376 | return self._Expr\r |
d0acc87a LG |
377 | \r |
378 | self._Idx = 0\r | |
379 | self._Token = ''\r | |
380 | \r | |
bc0d7233 | 381 | Val = self._ConExpr()\r |
d0acc87a LG |
382 | RealVal = Val\r |
383 | if type(Val) == type(''):\r | |
384 | if Val == 'L""':\r | |
385 | Val = False\r | |
386 | elif not Val:\r | |
387 | Val = False\r | |
388 | RealVal = '""'\r | |
726c501c | 389 | elif not Val.startswith('L"') and not Val.startswith('{') and not Val.startswith("L'"):\r |
d0acc87a LG |
390 | Val = True\r |
391 | RealVal = '"' + RealVal + '"'\r | |
0d2711a6 LG |
392 | \r |
393 | # The expression has been parsed, but the end of expression is not reached\r | |
394 | # It means the rest does not comply EBNF of <Expression>\r | |
395 | if self._Idx != self._Len:\r | |
396 | raise BadExpression(ERR_SNYTAX % self._Expr[self._Idx:])\r | |
397 | \r | |
d0acc87a LG |
398 | if RealValue:\r |
399 | RetVal = str(RealVal)\r | |
400 | elif Val:\r | |
401 | RetVal = True\r | |
402 | else:\r | |
403 | RetVal = False\r | |
404 | \r | |
405 | if self._WarnExcept:\r | |
406 | self._WarnExcept.result = RetVal\r | |
407 | raise self._WarnExcept\r | |
408 | else:\r | |
409 | return RetVal\r | |
0d2711a6 LG |
410 | \r |
411 | # Template function to parse binary operators which have same precedence\r | |
412 | # Expr [Operator Expr]*\r | |
4d601fc6 | 413 | def _ExprFuncTemplate(self, EvalFunc, OpSet):\r |
0d2711a6 | 414 | Val = EvalFunc()\r |
4d601fc6 | 415 | while self._IsOperator(OpSet):\r |
0d2711a6 | 416 | Op = self._Token\r |
bc0d7233 YF |
417 | if Op == '?':\r |
418 | Val2 = EvalFunc()\r | |
4d601fc6 | 419 | if self._IsOperator({':'}):\r |
bc0d7233 YF |
420 | Val3 = EvalFunc()\r |
421 | if Val:\r | |
422 | Val = Val2\r | |
423 | else:\r | |
424 | Val = Val3\r | |
425 | continue\r | |
d0acc87a LG |
426 | try:\r |
427 | Val = self.Eval(Op, Val, EvalFunc())\r | |
5b0671c1 | 428 | except WrnExpression as Warn:\r |
d0acc87a LG |
429 | self._WarnExcept = Warn\r |
430 | Val = Warn.result\r | |
0d2711a6 | 431 | return Val\r |
bc0d7233 YF |
432 | # A [? B]*\r |
433 | def _ConExpr(self):\r | |
4d601fc6 | 434 | return self._ExprFuncTemplate(self._OrExpr, {'?', ':'})\r |
0d2711a6 LG |
435 | \r |
436 | # A [|| B]*\r | |
437 | def _OrExpr(self):\r | |
4d601fc6 | 438 | return self._ExprFuncTemplate(self._AndExpr, {"OR", "or", "||"})\r |
0d2711a6 LG |
439 | \r |
440 | # A [&& B]*\r | |
441 | def _AndExpr(self):\r | |
4d601fc6 | 442 | return self._ExprFuncTemplate(self._BitOr, {"AND", "and", "&&"})\r |
0d2711a6 LG |
443 | \r |
444 | # A [ | B]*\r | |
445 | def _BitOr(self):\r | |
4d601fc6 | 446 | return self._ExprFuncTemplate(self._BitXor, {"|"})\r |
0d2711a6 LG |
447 | \r |
448 | # A [ ^ B]*\r | |
449 | def _BitXor(self):\r | |
4d601fc6 | 450 | return self._ExprFuncTemplate(self._BitAnd, {"XOR", "xor", "^"})\r |
0d2711a6 LG |
451 | \r |
452 | # A [ & B]*\r | |
453 | def _BitAnd(self):\r | |
4d601fc6 | 454 | return self._ExprFuncTemplate(self._EqExpr, {"&"})\r |
0d2711a6 LG |
455 | \r |
456 | # A [ == B]*\r | |
457 | def _EqExpr(self):\r | |
458 | Val = self._RelExpr()\r | |
4d601fc6 | 459 | while self._IsOperator({"==", "!=", "EQ", "NE", "IN", "in", "!", "NOT", "not"}):\r |
0d2711a6 | 460 | Op = self._Token\r |
4d601fc6 CJ |
461 | if Op in {"!", "NOT", "not"}:\r |
462 | if not self._IsOperator({"IN", "in"}):\r | |
0d2711a6 LG |
463 | raise BadExpression(ERR_REL_NOT_IN)\r |
464 | Op += ' ' + self._Token\r | |
d0acc87a LG |
465 | try:\r |
466 | Val = self.Eval(Op, Val, self._RelExpr())\r | |
5b0671c1 | 467 | except WrnExpression as Warn:\r |
d0acc87a LG |
468 | self._WarnExcept = Warn\r |
469 | Val = Warn.result\r | |
0d2711a6 LG |
470 | return Val\r |
471 | \r | |
472 | # A [ > B]*\r | |
473 | def _RelExpr(self):\r | |
4d601fc6 | 474 | return self._ExprFuncTemplate(self._ShiftExpr, {"<=", ">=", "<", ">", "LE", "GE", "LT", "GT"})\r |
5e06f1a0 YZ |
475 | \r |
476 | def _ShiftExpr(self):\r | |
4d601fc6 | 477 | return self._ExprFuncTemplate(self._AddExpr, {"<<", ">>"})\r |
0d2711a6 LG |
478 | \r |
479 | # A [ + B]*\r | |
480 | def _AddExpr(self):\r | |
4d601fc6 | 481 | return self._ExprFuncTemplate(self._MulExpr, {"+", "-"})\r |
5e06f1a0 YZ |
482 | \r |
483 | # A [ * B]*\r | |
484 | def _MulExpr(self):\r | |
4d601fc6 | 485 | return self._ExprFuncTemplate(self._UnaryExpr, {"*", "/", "%"})\r |
0d2711a6 LG |
486 | \r |
487 | # [!]*A\r | |
488 | def _UnaryExpr(self):\r | |
4d601fc6 | 489 | if self._IsOperator({"!", "NOT", "not"}):\r |
0d2711a6 | 490 | Val = self._UnaryExpr()\r |
d0acc87a LG |
491 | try:\r |
492 | return self.Eval('not', Val)\r | |
5b0671c1 | 493 | except WrnExpression as Warn:\r |
d0acc87a LG |
494 | self._WarnExcept = Warn\r |
495 | return Warn.result\r | |
4d601fc6 | 496 | if self._IsOperator({"~"}):\r |
5e06f1a0 YZ |
497 | Val = self._UnaryExpr()\r |
498 | try:\r | |
499 | return self.Eval('~', Val)\r | |
5b0671c1 | 500 | except WrnExpression as Warn:\r |
5e06f1a0 YZ |
501 | self._WarnExcept = Warn\r |
502 | return Warn.result\r | |
0d2711a6 LG |
503 | return self._IdenExpr()\r |
504 | \r | |
505 | # Parse identifier or encapsulated expression\r | |
506 | def _IdenExpr(self):\r | |
507 | Tk = self._GetToken()\r | |
508 | if Tk == '(':\r | |
bc0d7233 | 509 | Val = self._ConExpr()\r |
0d2711a6 LG |
510 | try:\r |
511 | # _GetToken may also raise BadExpression\r | |
512 | if self._GetToken() != ')':\r | |
513 | raise BadExpression(ERR_MATCH)\r | |
514 | except BadExpression:\r | |
515 | raise BadExpression(ERR_MATCH)\r | |
516 | return Val\r | |
517 | return Tk\r | |
518 | \r | |
519 | # Skip whitespace or tab\r | |
520 | def __SkipWS(self):\r | |
521 | for Char in self._Expr[self._Idx:]:\r | |
522 | if Char not in ' \t':\r | |
523 | break\r | |
524 | self._Idx += 1\r | |
525 | \r | |
526 | # Try to convert string to number\r | |
527 | def __IsNumberToken(self):\r | |
528 | Radix = 10\r | |
529 | if self._Token.lower()[0:2] == '0x' and len(self._Token) > 2:\r | |
530 | Radix = 16\r | |
35f613d9 YF |
531 | if self._Token.startswith('"') or self._Token.startswith('L"'):\r |
532 | Flag = 0\r | |
533 | for Index in range(len(self._Token)):\r | |
4d601fc6 | 534 | if self._Token[Index] in {'"'}:\r |
ea927d2f FY |
535 | if self._Token[Index - 1] == '\\':\r |
536 | continue\r | |
35f613d9 YF |
537 | Flag += 1\r |
538 | if Flag == 2 and self._Token.endswith('"'):\r | |
35f613d9 YF |
539 | return True\r |
540 | if self._Token.startswith("'") or self._Token.startswith("L'"):\r | |
726c501c YZ |
541 | Flag = 0\r |
542 | for Index in range(len(self._Token)):\r | |
4d601fc6 | 543 | if self._Token[Index] in {"'"}:\r |
ea927d2f FY |
544 | if self._Token[Index - 1] == '\\':\r |
545 | continue\r | |
726c501c | 546 | Flag += 1\r |
35f613d9 | 547 | if Flag == 2 and self._Token.endswith("'"):\r |
726c501c | 548 | return True\r |
0d2711a6 LG |
549 | try:\r |
550 | self._Token = int(self._Token, Radix)\r | |
551 | return True\r | |
552 | except ValueError:\r | |
553 | return False\r | |
554 | except TypeError:\r | |
555 | return False\r | |
556 | \r | |
557 | # Parse array: {...}\r | |
558 | def __GetArray(self):\r | |
559 | Token = '{'\r | |
560 | self._Idx += 1\r | |
561 | self.__GetNList(True)\r | |
562 | Token += self._LiteralToken\r | |
563 | if self._Idx >= self._Len or self._Expr[self._Idx] != '}':\r | |
564 | raise BadExpression(ERR_ARRAY_TOKEN % Token)\r | |
565 | Token += '}'\r | |
566 | \r | |
567 | # All whitespace and tabs in array are already stripped.\r | |
568 | IsArray = IsGuid = False\r | |
569 | if len(Token.split(',')) == 11 and len(Token.split(',{')) == 2 \\r | |
570 | and len(Token.split('},')) == 1:\r | |
571 | HexLen = [11,6,6,5,4,4,4,4,4,4,6]\r | |
572 | HexList= Token.split(',')\r | |
573 | if HexList[3].startswith('{') and \\r | |
574 | not [Index for Index, Hex in enumerate(HexList) if len(Hex) > HexLen[Index]]:\r | |
575 | IsGuid = True\r | |
576 | if Token.lstrip('{').rstrip('}').find('{') == -1:\r | |
577 | if not [Hex for Hex in Token.lstrip('{').rstrip('}').split(',') if len(Hex) > 4]:\r | |
578 | IsArray = True\r | |
579 | if not IsArray and not IsGuid:\r | |
580 | raise BadExpression(ERR_ARRAY_TOKEN % Token)\r | |
581 | self._Idx += 1\r | |
582 | self._Token = self._LiteralToken = Token\r | |
583 | return self._Token\r | |
584 | \r | |
585 | # Parse string, the format must be: "..."\r | |
586 | def __GetString(self):\r | |
587 | Idx = self._Idx\r | |
588 | \r | |
589 | # Skip left quote\r | |
590 | self._Idx += 1\r | |
591 | \r | |
592 | # Replace escape \\\", \"\r | |
ea927d2f FY |
593 | if self._Expr[Idx] == '"':\r |
594 | Expr = self._Expr[self._Idx:].replace('\\\\', '//').replace('\\\"', '\\\'')\r | |
595 | for Ch in Expr:\r | |
596 | self._Idx += 1\r | |
597 | if Ch == '"':\r | |
598 | break\r | |
599 | self._Token = self._LiteralToken = self._Expr[Idx:self._Idx]\r | |
600 | if not self._Token.endswith('"'):\r | |
601 | raise BadExpression(ERR_STRING_TOKEN % self._Token)\r | |
602 | #Replace escape \\\', \'\r | |
603 | elif self._Expr[Idx] == "'":\r | |
604 | Expr = self._Expr[self._Idx:].replace('\\\\', '//').replace("\\\'", "\\\"")\r | |
605 | for Ch in Expr:\r | |
606 | self._Idx += 1\r | |
607 | if Ch == "'":\r | |
608 | break\r | |
609 | self._Token = self._LiteralToken = self._Expr[Idx:self._Idx]\r | |
610 | if not self._Token.endswith("'"):\r | |
611 | raise BadExpression(ERR_STRING_TOKEN % self._Token)\r | |
0d2711a6 LG |
612 | self._Token = self._Token[1:-1]\r |
613 | return self._Token\r | |
614 | \r | |
615 | # Get token that is comprised by alphanumeric, underscore or dot(used by PCD)\r | |
616 | # @param IsAlphaOp: Indicate if parsing general token or script operator(EQ, NE...)\r | |
617 | def __GetIdToken(self, IsAlphaOp = False):\r | |
618 | IdToken = ''\r | |
619 | for Ch in self._Expr[self._Idx:]:\r | |
bc0d7233 | 620 | if not self.__IsIdChar(Ch) or ('?' in self._Expr and Ch == ':'):\r |
0d2711a6 LG |
621 | break\r |
622 | self._Idx += 1\r | |
623 | IdToken += Ch\r | |
624 | \r | |
625 | self._Token = self._LiteralToken = IdToken\r | |
626 | if not IsAlphaOp:\r | |
627 | self.__ResolveToken()\r | |
628 | return self._Token\r | |
629 | \r | |
630 | # Try to resolve token\r | |
631 | def __ResolveToken(self):\r | |
632 | if not self._Token:\r | |
633 | raise BadExpression(ERR_EMPTY_TOKEN)\r | |
634 | \r | |
635 | # PCD token\r | |
e6c2468a | 636 | if PcdPattern.match(self._Token):\r |
0d2711a6 | 637 | if self._Token not in self._Symb:\r |
64b2609f LG |
638 | Ex = BadExpression(ERR_PCD_RESOLVE % self._Token)\r |
639 | Ex.Pcd = self._Token\r | |
640 | raise Ex\r | |
4afd3d04 | 641 | self._Token = ValueExpression(self._Symb[self._Token], self._Symb)(True, self._Depth+1)\r |
0d2711a6 LG |
642 | if type(self._Token) != type(''):\r |
643 | self._LiteralToken = hex(self._Token)\r | |
644 | return\r | |
645 | \r | |
646 | if self._Token.startswith('"'):\r | |
647 | self._Token = self._Token[1:-1]\r | |
4d601fc6 | 648 | elif self._Token in {"FALSE", "false", "False"}:\r |
0d2711a6 | 649 | self._Token = False\r |
4d601fc6 | 650 | elif self._Token in {"TRUE", "true", "True"}:\r |
0d2711a6 LG |
651 | self._Token = True\r |
652 | else:\r | |
653 | self.__IsNumberToken()\r | |
654 | \r | |
655 | def __GetNList(self, InArray=False):\r | |
656 | self._GetSingleToken()\r | |
657 | if not self.__IsHexLiteral():\r | |
658 | if InArray:\r | |
659 | raise BadExpression(ERR_ARRAY_ELE % self._Token)\r | |
660 | return self._Token\r | |
661 | \r | |
662 | self.__SkipWS()\r | |
663 | Expr = self._Expr[self._Idx:]\r | |
664 | if not Expr.startswith(','):\r | |
665 | return self._Token\r | |
666 | \r | |
667 | NList = self._LiteralToken\r | |
668 | while Expr.startswith(','):\r | |
669 | NList += ','\r | |
670 | self._Idx += 1\r | |
671 | self.__SkipWS()\r | |
672 | self._GetSingleToken()\r | |
673 | if not self.__IsHexLiteral():\r | |
674 | raise BadExpression(ERR_ARRAY_ELE % self._Token)\r | |
675 | NList += self._LiteralToken\r | |
676 | self.__SkipWS()\r | |
677 | Expr = self._Expr[self._Idx:]\r | |
678 | self._Token = self._LiteralToken = NList\r | |
679 | return self._Token\r | |
680 | \r | |
681 | def __IsHexLiteral(self):\r | |
682 | if self._LiteralToken.startswith('{') and \\r | |
683 | self._LiteralToken.endswith('}'):\r | |
684 | return True\r | |
685 | \r | |
56326323 | 686 | if gHexPattern.match(self._LiteralToken):\r |
0d2711a6 | 687 | Token = self._LiteralToken[2:]\r |
0d2711a6 LG |
688 | if not Token:\r |
689 | self._LiteralToken = '0x0'\r | |
690 | else:\r | |
35f613d9 | 691 | self._LiteralToken = '0x' + Token\r |
0d2711a6 LG |
692 | return True\r |
693 | return False\r | |
694 | \r | |
695 | def _GetToken(self):\r | |
696 | return self.__GetNList()\r | |
697 | \r | |
698 | @staticmethod\r | |
699 | def __IsIdChar(Ch):\r | |
5e06f1a0 | 700 | return Ch in '._:' or Ch.isalnum()\r |
0d2711a6 LG |
701 | \r |
702 | # Parse operand\r | |
703 | def _GetSingleToken(self):\r | |
704 | self.__SkipWS()\r | |
705 | Expr = self._Expr[self._Idx:]\r | |
706 | if Expr.startswith('L"'):\r | |
707 | # Skip L\r | |
708 | self._Idx += 1\r | |
709 | UStr = self.__GetString()\r | |
710 | self._Token = 'L"' + UStr + '"'\r | |
726c501c YZ |
711 | return self._Token\r |
712 | elif Expr.startswith("L'"):\r | |
713 | # Skip L\r | |
714 | self._Idx += 1\r | |
715 | UStr = self.__GetString()\r | |
716 | self._Token = "L'" + UStr + "'"\r | |
0d2711a6 | 717 | return self._Token\r |
726c501c YZ |
718 | elif Expr.startswith("'"):\r |
719 | UStr = self.__GetString()\r | |
720 | self._Token = "'" + UStr + "'"\r | |
726c501c YZ |
721 | return self._Token\r |
722 | elif Expr.startswith('UINT'):\r | |
723 | Re = re.compile('(?:UINT8|UINT16|UINT32|UINT64)\((.+)\)')\r | |
724 | try:\r | |
725 | RetValue = Re.search(Expr).group(1)\r | |
726 | except:\r | |
727 | raise BadExpression('Invalid Expression %s' % Expr)\r | |
728 | Idx = self._Idx\r | |
729 | for Ch in Expr:\r | |
730 | self._Idx += 1\r | |
731 | if Ch == '(':\r | |
732 | Prefix = self._Expr[Idx:self._Idx - 1]\r | |
733 | Idx = self._Idx\r | |
734 | if Ch == ')':\r | |
735 | TmpValue = self._Expr[Idx :self._Idx - 1]\r | |
736 | TmpValue = ValueExpression(TmpValue)(True)\r | |
737 | TmpValue = '0x%x' % int(TmpValue) if type(TmpValue) != type('') else TmpValue\r | |
738 | break\r | |
739 | self._Token, Size = ParseFieldValue(Prefix + '(' + TmpValue + ')')\r | |
740 | return self._Token\r | |
0d2711a6 LG |
741 | \r |
742 | self._Token = ''\r | |
743 | if Expr:\r | |
744 | Ch = Expr[0]\r | |
b1a9e404 | 745 | Match = gGuidPattern.match(Expr)\r |
0d2711a6 LG |
746 | if Match and not Expr[Match.end():Match.end()+1].isalnum() \\r |
747 | and Expr[Match.end():Match.end()+1] != '_':\r | |
748 | self._Idx += Match.end()\r | |
4afd3d04 | 749 | self._Token = ValueExpression(GuidStringToGuidStructureString(Expr[0:Match.end()]))(True, self._Depth+1)\r |
0d2711a6 LG |
750 | return self._Token\r |
751 | elif self.__IsIdChar(Ch):\r | |
752 | return self.__GetIdToken()\r | |
753 | elif Ch == '"':\r | |
754 | return self.__GetString()\r | |
755 | elif Ch == '{':\r | |
756 | return self.__GetArray()\r | |
757 | elif Ch == '(' or Ch == ')':\r | |
758 | self._Idx += 1\r | |
759 | self._Token = Ch\r | |
760 | return self._Token\r | |
761 | \r | |
762 | raise BadExpression(ERR_VALID_TOKEN % Expr)\r | |
763 | \r | |
764 | # Parse operator\r | |
765 | def _GetOperator(self):\r | |
766 | self.__SkipWS()\r | |
bc0d7233 | 767 | LegalOpLst = ['&&', '||', '!=', '==', '>=', '<='] + self.NonLetterOpLst + ['?',':']\r |
0d2711a6 LG |
768 | \r |
769 | self._Token = ''\r | |
770 | Expr = self._Expr[self._Idx:]\r | |
771 | \r | |
772 | # Reach end of expression\r | |
773 | if not Expr:\r | |
774 | return ''\r | |
775 | \r | |
776 | # Script operator: LT, GT, LE, GE, EQ, NE, and, or, xor, not\r | |
777 | if Expr[0].isalpha():\r | |
778 | return self.__GetIdToken(True)\r | |
779 | \r | |
780 | # Start to get regular operator: +, -, <, > ...\r | |
781 | if Expr[0] not in self.NonLetterOpLst:\r | |
782 | return ''\r | |
783 | \r | |
784 | OpToken = ''\r | |
785 | for Ch in Expr:\r | |
786 | if Ch in self.NonLetterOpLst:\r | |
d0acc87a | 787 | if '!' == Ch and OpToken:\r |
0d2711a6 LG |
788 | break\r |
789 | self._Idx += 1\r | |
790 | OpToken += Ch\r | |
791 | else:\r | |
792 | break\r | |
793 | \r | |
794 | if OpToken not in LegalOpLst:\r | |
795 | raise BadExpression(ERR_OPERATOR_UNSUPPORT % OpToken)\r | |
796 | self._Token = OpToken\r | |
797 | return OpToken\r | |
798 | \r | |
726c501c YZ |
799 | class ValueExpressionEx(ValueExpression):\r |
800 | def __init__(self, PcdValue, PcdType, SymbolTable={}):\r | |
801 | ValueExpression.__init__(self, PcdValue, SymbolTable)\r | |
802 | self.PcdValue = PcdValue\r | |
803 | self.PcdType = PcdType\r | |
804 | \r | |
805 | def __call__(self, RealValue=False, Depth=0):\r | |
806 | PcdValue = self.PcdValue\r | |
807 | try:\r | |
808 | PcdValue = ValueExpression.__call__(self, RealValue, Depth)\r | |
656d2539 | 809 | if self.PcdType == TAB_VOID and (PcdValue.startswith("'") or PcdValue.startswith("L'")):\r |
0e6b8673 FY |
810 | PcdValue, Size = ParseFieldValue(PcdValue)\r |
811 | PcdValueList = []\r | |
812 | for I in range(Size):\r | |
813 | PcdValueList.append('0x%02X'%(PcdValue & 0xff))\r | |
814 | PcdValue = PcdValue >> 8\r | |
815 | PcdValue = '{' + ','.join(PcdValueList) + '}'\r | |
656d2539 | 816 | elif self.PcdType in TAB_PCD_NUMERIC_TYPES and (PcdValue.startswith("'") or \\r |
35f613d9 YF |
817 | PcdValue.startswith('"') or PcdValue.startswith("L'") or PcdValue.startswith('L"') or PcdValue.startswith('{')):\r |
818 | raise BadExpression\r | |
5b0671c1 | 819 | except WrnExpression as Value:\r |
726c501c | 820 | PcdValue = Value.result\r |
5b0671c1 | 821 | except BadExpression as Value:\r |
656d2539 | 822 | if self.PcdType in TAB_PCD_NUMERIC_TYPES:\r |
35f613d9 | 823 | PcdValue = PcdValue.strip()\r |
b813843c | 824 | if PcdValue.startswith('{') and PcdValue.endswith('}'):\r |
3be421e9 | 825 | PcdValue = SplitPcdValueString(PcdValue[1:-1])\r |
35f613d9 YF |
826 | if type(PcdValue) == type([]):\r |
827 | TmpValue = 0\r | |
726c501c | 828 | Size = 0\r |
3be421e9 | 829 | ValueType = ''\r |
35f613d9 | 830 | for Item in PcdValue:\r |
3be421e9 | 831 | Item = Item.strip()\r |
656d2539 | 832 | if Item.startswith(TAB_UINT8):\r |
0e6b8673 | 833 | ItemSize = 1\r |
656d2539 CJ |
834 | ValueType = TAB_UINT8\r |
835 | elif Item.startswith(TAB_UINT16):\r | |
35f613d9 | 836 | ItemSize = 2\r |
656d2539 CJ |
837 | ValueType = TAB_UINT16\r |
838 | elif Item.startswith(TAB_UINT32):\r | |
35f613d9 | 839 | ItemSize = 4\r |
656d2539 CJ |
840 | ValueType = TAB_UINT32\r |
841 | elif Item.startswith(TAB_UINT64):\r | |
35f613d9 | 842 | ItemSize = 8\r |
656d2539 | 843 | ValueType = TAB_UINT64\r |
4d601fc6 | 844 | elif Item[0] in {'"',"'",'L'}:\r |
3be421e9 | 845 | ItemSize = 0\r |
656d2539 | 846 | ValueType = TAB_VOID\r |
35f613d9 YF |
847 | else:\r |
848 | ItemSize = 0\r | |
656d2539 | 849 | ValueType = TAB_UINT8\r |
3be421e9 | 850 | Item = ValueExpressionEx(Item, ValueType, self._Symb)(True)\r |
35f613d9 YF |
851 | \r |
852 | if ItemSize == 0:\r | |
3be421e9 | 853 | try:\r |
0944818a | 854 | tmpValue = int(Item, 0)\r |
3be421e9 FY |
855 | if tmpValue > 255:\r |
856 | raise BadExpression("Byte array number %s should less than 0xFF." % Item)\r | |
5b0671c1 | 857 | except BadExpression as Value:\r |
3be421e9 FY |
858 | raise BadExpression(Value)\r |
859 | except ValueError:\r | |
860 | pass\r | |
35f613d9 YF |
861 | ItemValue, ItemSize = ParseFieldValue(Item)\r |
862 | else:\r | |
863 | ItemValue = ParseFieldValue(Item)[0]\r | |
864 | \r | |
865 | if type(ItemValue) == type(''):\r | |
0944818a | 866 | ItemValue = int(ItemValue, 0)\r |
35f613d9 YF |
867 | \r |
868 | TmpValue = (ItemValue << (Size * 8)) | TmpValue\r | |
869 | Size = Size + ItemSize\r | |
870 | else:\r | |
0e6b8673 FY |
871 | try:\r |
872 | TmpValue, Size = ParseFieldValue(PcdValue)\r | |
5b0671c1 | 873 | except BadExpression as Value:\r |
9efe8d60 | 874 | raise BadExpression("Type: %s, Value: %s, %s" % (self.PcdType, PcdValue, Value))\r |
35f613d9 | 875 | if type(TmpValue) == type(''):\r |
9efe8d60 YF |
876 | try:\r |
877 | TmpValue = int(TmpValue)\r | |
878 | except:\r | |
879 | raise BadExpression(Value)\r | |
35f613d9 YF |
880 | else:\r |
881 | PcdValue = '0x%0{}X'.format(Size) % (TmpValue)\r | |
882 | if TmpValue < 0:\r | |
883 | raise BadExpression('Type %s PCD Value is negative' % self.PcdType)\r | |
656d2539 | 884 | if self.PcdType == TAB_UINT8 and Size > 1:\r |
35f613d9 | 885 | raise BadExpression('Type %s PCD Value Size is Larger than 1 byte' % self.PcdType)\r |
656d2539 | 886 | if self.PcdType == TAB_UINT16 and Size > 2:\r |
35f613d9 | 887 | raise BadExpression('Type %s PCD Value Size is Larger than 2 byte' % self.PcdType)\r |
656d2539 | 888 | if self.PcdType == TAB_UINT32 and Size > 4:\r |
35f613d9 | 889 | raise BadExpression('Type %s PCD Value Size is Larger than 4 byte' % self.PcdType)\r |
656d2539 | 890 | if self.PcdType == TAB_UINT64 and Size > 8:\r |
35f613d9 | 891 | raise BadExpression('Type %s PCD Value Size is Larger than 8 byte' % self.PcdType)\r |
6f49996c | 892 | else:\r |
35f613d9 YF |
893 | try:\r |
894 | TmpValue = long(PcdValue)\r | |
895 | TmpList = []\r | |
896 | if TmpValue.bit_length() == 0:\r | |
897 | PcdValue = '{0x00}'\r | |
726c501c | 898 | else:\r |
35f613d9 YF |
899 | for I in range((TmpValue.bit_length() + 7) / 8):\r |
900 | TmpList.append('0x%02x' % ((TmpValue >> I * 8) & 0xff))\r | |
901 | PcdValue = '{' + ', '.join(TmpList) + '}'\r | |
902 | except:\r | |
903 | if PcdValue.strip().startswith('{'):\r | |
3be421e9 FY |
904 | PcdValueList = SplitPcdValueString(PcdValue.strip()[1:-1])\r |
905 | LabelDict = {}\r | |
906 | NewPcdValueList = []\r | |
3be421e9 | 907 | LabelOffset = 0\r |
e52aed0d | 908 | for Item in PcdValueList:\r |
3be421e9 | 909 | # compute byte offset of every LABEL\r |
38504ad3 CJ |
910 | LabelList = _ReLabel.findall(Item)\r |
911 | Item = _ReLabel.sub('', Item)\r | |
b31501c9 | 912 | Item = Item.strip()\r |
5ac0a545 | 913 | if LabelList:\r |
3be421e9 | 914 | for Label in LabelList:\r |
1f901a89 | 915 | if not IsValidCName(Label):\r |
5ac0a545 | 916 | raise BadExpression('%s is not a valid c variable name' % Label)\r |
9eb87141 | 917 | if Label not in LabelDict:\r |
3be421e9 | 918 | LabelDict[Label] = str(LabelOffset)\r |
656d2539 | 919 | if Item.startswith(TAB_UINT8):\r |
3be421e9 | 920 | LabelOffset = LabelOffset + 1\r |
656d2539 | 921 | elif Item.startswith(TAB_UINT16):\r |
3be421e9 | 922 | LabelOffset = LabelOffset + 2\r |
656d2539 | 923 | elif Item.startswith(TAB_UINT32):\r |
3be421e9 | 924 | LabelOffset = LabelOffset + 4\r |
656d2539 | 925 | elif Item.startswith(TAB_UINT64):\r |
3be421e9 FY |
926 | LabelOffset = LabelOffset + 8\r |
927 | else:\r | |
8bd72d7c | 928 | try:\r |
8bd72d7c KM |
929 | ItemValue, ItemSize = ParseFieldValue(Item)\r |
930 | LabelOffset = LabelOffset + ItemSize\r | |
35f613d9 | 931 | except:\r |
3be421e9 FY |
932 | LabelOffset = LabelOffset + 1\r |
933 | \r | |
e52aed0d | 934 | for Item in PcdValueList:\r |
3be421e9 FY |
935 | # for LABEL parse\r |
936 | Item = Item.strip()\r | |
937 | try:\r | |
38504ad3 | 938 | Item = _ReLabel.sub('', Item)\r |
3be421e9 FY |
939 | except:\r |
940 | pass\r | |
941 | try:\r | |
38504ad3 | 942 | OffsetList = _ReOffset.findall(Item)\r |
3be421e9 FY |
943 | except:\r |
944 | pass\r | |
cc0321f2 | 945 | # replace each offset, except errors\r |
3be421e9 | 946 | for Offset in OffsetList:\r |
cc0321f2 CJ |
947 | try:\r |
948 | Item = Item.replace('OFFSET_OF({})'.format(Offset),LabelDict[Offset])\r | |
949 | except:\r | |
3be421e9 | 950 | raise BadExpression('%s not defined' % Offset)\r |
cc0321f2 | 951 | \r |
3be421e9 FY |
952 | NewPcdValueList.append(Item)\r |
953 | \r | |
954 | AllPcdValueList = []\r | |
955 | for Item in NewPcdValueList:\r | |
956 | Size = 0\r | |
957 | ValueStr = ''\r | |
958 | TokenSpaceGuidName = ''\r | |
91fa33ee | 959 | if Item.startswith(TAB_GUID) and Item.endswith(')'):\r |
35f613d9 | 960 | try:\r |
3be421e9 | 961 | TokenSpaceGuidName = re.search('GUID\((\w+)\)', Item).group(1)\r |
35f613d9 YF |
962 | except:\r |
963 | pass\r | |
3be421e9 FY |
964 | if TokenSpaceGuidName and TokenSpaceGuidName in self._Symb:\r |
965 | Item = 'GUID(' + self._Symb[TokenSpaceGuidName] + ')'\r | |
966 | elif TokenSpaceGuidName:\r | |
967 | raise BadExpression('%s not found in DEC file' % TokenSpaceGuidName)\r | |
968 | Item, Size = ParseFieldValue(Item)\r | |
969 | for Index in range(0, Size):\r | |
970 | ValueStr = '0x%02X' % (int(Item) & 255)\r | |
971 | Item >>= 8\r | |
972 | AllPcdValueList.append(ValueStr)\r | |
973 | continue\r | |
974 | elif Item.startswith('DEVICE_PATH') and Item.endswith(')'):\r | |
975 | Item, Size = ParseFieldValue(Item)\r | |
976 | AllPcdValueList.append(Item[1:-1])\r | |
977 | continue\r | |
978 | else:\r | |
35f613d9 | 979 | ValueType = ""\r |
656d2539 | 980 | if Item.startswith(TAB_UINT8):\r |
35f613d9 | 981 | ItemSize = 1\r |
656d2539 CJ |
982 | ValueType = TAB_UINT8\r |
983 | elif Item.startswith(TAB_UINT16):\r | |
35f613d9 | 984 | ItemSize = 2\r |
656d2539 CJ |
985 | ValueType = TAB_UINT16\r |
986 | elif Item.startswith(TAB_UINT32):\r | |
35f613d9 | 987 | ItemSize = 4\r |
656d2539 CJ |
988 | ValueType = TAB_UINT32\r |
989 | elif Item.startswith(TAB_UINT64):\r | |
35f613d9 | 990 | ItemSize = 8\r |
656d2539 | 991 | ValueType = TAB_UINT64\r |
35f613d9 YF |
992 | else:\r |
993 | ItemSize = 0\r | |
994 | if ValueType:\r | |
995 | TmpValue = ValueExpressionEx(Item, ValueType, self._Symb)(True)\r | |
996 | else:\r | |
997 | TmpValue = ValueExpressionEx(Item, self.PcdType, self._Symb)(True)\r | |
998 | Item = '0x%x' % TmpValue if type(TmpValue) != type('') else TmpValue\r | |
999 | if ItemSize == 0:\r | |
1000 | ItemValue, ItemSize = ParseFieldValue(Item)\r | |
4d601fc6 | 1001 | if Item[0] not in {'"','L','{'} and ItemSize > 1:\r |
3be421e9 | 1002 | raise BadExpression("Byte array number %s should less than 0xFF." % Item)\r |
35f613d9 YF |
1003 | else:\r |
1004 | ItemValue = ParseFieldValue(Item)[0]\r | |
1005 | for I in range(0, ItemSize):\r | |
3be421e9 | 1006 | ValueStr = '0x%02X' % (int(ItemValue) & 255)\r |
35f613d9 | 1007 | ItemValue >>= 8\r |
3be421e9 | 1008 | AllPcdValueList.append(ValueStr)\r |
35f613d9 YF |
1009 | Size += ItemSize\r |
1010 | \r | |
3be421e9 FY |
1011 | if Size > 0:\r |
1012 | PcdValue = '{' + ','.join(AllPcdValueList) + '}'\r | |
0e6b8673 | 1013 | else:\r |
9efe8d60 | 1014 | raise BadExpression("Type: %s, Value: %s, %s"%(self.PcdType, PcdValue, Value))\r |
0e6b8673 | 1015 | \r |
35f613d9 YF |
1016 | if PcdValue == 'True':\r |
1017 | PcdValue = '1'\r | |
1018 | if PcdValue == 'False':\r | |
1019 | PcdValue = '0'\r | |
726c501c | 1020 | \r |
726c501c YZ |
1021 | if RealValue:\r |
1022 | return PcdValue\r | |
1023 | \r | |
0d2711a6 LG |
1024 | if __name__ == '__main__':\r |
1025 | pass\r | |
d0acc87a LG |
1026 | while True:\r |
1027 | input = raw_input('Input expr: ')\r | |
1028 | if input in 'qQ':\r | |
1029 | break\r | |
1030 | try:\r | |
1031 | print ValueExpression(input)(True)\r | |
1032 | print ValueExpression(input)(False)\r | |
5b0671c1 | 1033 | except WrnExpression as Ex:\r |
d0acc87a LG |
1034 | print Ex.result\r |
1035 | print str(Ex)\r | |
5b0671c1 | 1036 | except Exception as Ex:\r |
d0acc87a | 1037 | print str(Ex)\r |