diff options
| author | kx <kx@radix.pro> | 2024-06-04 06:43:08 +0300 |
|---|---|---|
| committer | kx <kx@radix.pro> | 2024-06-04 06:43:08 +0300 |
| commit | 7e2ccccace24636f29ddc210b94606abd4c7e42b (patch) | |
| tree | 545d43ea12671048956cafeb12303e84d601e571 /BaseTools/Source/Python/Common/Expression.py | |
| parent | 27b044605cd5f6b33a3d231576003850b3fe305b (diff) | |
| download | edk2-trunk.tar.xz | |
Renormalized end-of-lines from master@27b044605cd5f6b33a3d231576003850b3fe305btrunk
Diffstat (limited to 'BaseTools/Source/Python/Common/Expression.py')
| -rw-r--r-- | BaseTools/Source/Python/Common/Expression.py | 2108 |
1 files changed, 1054 insertions, 1054 deletions
diff --git a/BaseTools/Source/Python/Common/Expression.py b/BaseTools/Source/Python/Common/Expression.py index 9d9cb0c929..53c14e3e1e 100644 --- a/BaseTools/Source/Python/Common/Expression.py +++ b/BaseTools/Source/Python/Common/Expression.py @@ -1,1054 +1,1054 @@ -## @file
-# This file is used to parse and evaluate expression in directive or PCD value.
-#
-# Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
-# SPDX-License-Identifier: BSD-2-Clause-Patent
-
-## Import Modules
-#
-from __future__ import print_function
-from __future__ import absolute_import
-from Common.GlobalData import *
-from CommonDataClass.Exceptions import BadExpression
-from CommonDataClass.Exceptions import WrnExpression
-from .Misc import GuidStringToGuidStructureString, ParseFieldValue,CopyDict
-import Common.EdkLogger as EdkLogger
-import copy
-from Common.DataType import *
-import sys
-from random import sample
-import string
-
-ERR_STRING_EXPR = 'This operator cannot be used in string expression: [%s].'
-ERR_SNYTAX = 'Syntax error, the rest of expression cannot be evaluated: [%s].'
-ERR_MATCH = 'No matching right parenthesis.'
-ERR_STRING_TOKEN = 'Bad string token: [%s].'
-ERR_MACRO_TOKEN = 'Bad macro token: [%s].'
-ERR_EMPTY_TOKEN = 'Empty token is not allowed.'
-ERR_PCD_RESOLVE = 'The PCD should be FeatureFlag type or FixedAtBuild type: [%s].'
-ERR_VALID_TOKEN = 'No more valid token found from rest of string: [%s].'
-ERR_EXPR_TYPE = 'Different types found in expression.'
-ERR_OPERATOR_UNSUPPORT = 'Unsupported operator: [%s]'
-ERR_REL_NOT_IN = 'Expect "IN" after "not" operator.'
-WRN_BOOL_EXPR = 'Operand of boolean type cannot be used in arithmetic expression.'
-WRN_EQCMP_STR_OTHERS = '== Comparison between Operand of string type and Boolean/Number Type always return False.'
-WRN_NECMP_STR_OTHERS = '!= Comparison between Operand of string type and Boolean/Number Type always return True.'
-ERR_RELCMP_STR_OTHERS = 'Operator taking Operand of string type and Boolean/Number Type is not allowed: [%s].'
-ERR_STRING_CMP = 'Unicode string and general string cannot be compared: [%s %s %s]'
-ERR_ARRAY_TOKEN = 'Bad C array or C format GUID token: [%s].'
-ERR_ARRAY_ELE = 'This must be HEX value for NList or Array: [%s].'
-ERR_EMPTY_EXPR = 'Empty expression is not allowed.'
-ERR_IN_OPERAND = 'Macro after IN operator can only be: $(FAMILY), $(ARCH), $(TOOL_CHAIN_TAG) and $(TARGET).'
-
-__ValidString = re.compile(r'[_a-zA-Z][_0-9a-zA-Z]*$')
-_ReLabel = re.compile(r'LABEL\((\w+)\)')
-_ReOffset = re.compile(r'OFFSET_OF\((\w+)\)')
-PcdPattern = re.compile(r'^[_a-zA-Z][0-9A-Za-z_]*\.[_a-zA-Z][0-9A-Za-z_]*$')
-
-## SplitString
-# Split string to list according double quote
-# For example: abc"de\"f"ghi"jkl"mn will be: ['abc', '"de\"f"', 'ghi', '"jkl"', 'mn']
-#
-def SplitString(String):
- # There might be escaped quote: "abc\"def\\\"ghi", 'abc\'def\\\'ghi'
- RanStr = ''.join(sample(string.ascii_letters + string.digits, 8))
- String = String.replace('\\\\', RanStr).strip()
- RetList = []
- InSingleQuote = False
- InDoubleQuote = False
- Item = ''
- for i, ch in enumerate(String):
- if ch == '"' and not InSingleQuote:
- if String[i - 1] != '\\':
- InDoubleQuote = not InDoubleQuote
- if not InDoubleQuote:
- Item += String[i]
- RetList.append(Item)
- Item = ''
- continue
- if Item:
- RetList.append(Item)
- Item = ''
- elif ch == "'" and not InDoubleQuote:
- if String[i - 1] != '\\':
- InSingleQuote = not InSingleQuote
- if not InSingleQuote:
- Item += String[i]
- RetList.append(Item)
- Item = ''
- continue
- if Item:
- RetList.append(Item)
- Item = ''
- Item += String[i]
- if InSingleQuote or InDoubleQuote:
- raise BadExpression(ERR_STRING_TOKEN % Item)
- if Item:
- RetList.append(Item)
- for i, ch in enumerate(RetList):
- if RanStr in ch:
- RetList[i] = ch.replace(RanStr,'\\\\')
- return RetList
-
-def SplitPcdValueString(String):
- # There might be escaped comma in GUID() or DEVICE_PATH() or " "
- # or ' ' or L' ' or L" "
- RanStr = ''.join(sample(string.ascii_letters + string.digits, 8))
- String = String.replace('\\\\', RanStr).strip()
- RetList = []
- InParenthesis = 0
- InSingleQuote = False
- InDoubleQuote = False
- Item = ''
- for i, ch in enumerate(String):
- if ch == '(':
- InParenthesis += 1
- elif ch == ')':
- if InParenthesis:
- InParenthesis -= 1
- else:
- raise BadExpression(ERR_STRING_TOKEN % Item)
- elif ch == '"' and not InSingleQuote:
- if String[i-1] != '\\':
- InDoubleQuote = not InDoubleQuote
- elif ch == "'" and not InDoubleQuote:
- if String[i-1] != '\\':
- InSingleQuote = not InSingleQuote
- elif ch == ',':
- if InParenthesis or InSingleQuote or InDoubleQuote:
- Item += String[i]
- continue
- elif Item:
- RetList.append(Item)
- Item = ''
- continue
- Item += String[i]
- if InSingleQuote or InDoubleQuote or InParenthesis:
- raise BadExpression(ERR_STRING_TOKEN % Item)
- if Item:
- RetList.append(Item)
- for i, ch in enumerate(RetList):
- if RanStr in ch:
- RetList[i] = ch.replace(RanStr,'\\\\')
- return RetList
-
-def IsValidCName(Str):
- return True if __ValidString.match(Str) else False
-
-def BuildOptionValue(PcdValue, GuidDict):
- if PcdValue.startswith('H'):
- InputValue = PcdValue[1:]
- elif PcdValue.startswith("L'") or PcdValue.startswith("'"):
- InputValue = PcdValue
- elif PcdValue.startswith('L'):
- InputValue = 'L"' + PcdValue[1:] + '"'
- else:
- InputValue = PcdValue
- try:
- PcdValue = ValueExpressionEx(InputValue, TAB_VOID, GuidDict)(True)
- except:
- pass
-
- return PcdValue
-
-## ReplaceExprMacro
-#
-def ReplaceExprMacro(String, Macros, ExceptionList = None):
- StrList = SplitString(String)
- for i, String in enumerate(StrList):
- InQuote = False
- if String.startswith('"'):
- InQuote = True
- MacroStartPos = String.find('$(')
- if MacroStartPos < 0:
- for Pcd in gPlatformPcds:
- if Pcd in String:
- if Pcd not in gConditionalPcds:
- gConditionalPcds.append(Pcd)
- continue
- RetStr = ''
- while MacroStartPos >= 0:
- RetStr = String[0:MacroStartPos]
- MacroEndPos = String.find(')', MacroStartPos)
- if MacroEndPos < 0:
- raise BadExpression(ERR_MACRO_TOKEN % String[MacroStartPos:])
- Macro = String[MacroStartPos+2:MacroEndPos]
- if Macro not in Macros:
- # From C reference manual:
- # If an undefined macro name appears in the constant-expression of
- # !if or !elif, it is replaced by the integer constant 0.
- RetStr += '0'
- elif not InQuote:
- Tklst = RetStr.split()
- if Tklst and Tklst[-1] in {'IN', 'in'} and ExceptionList and Macro not in ExceptionList:
- raise BadExpression(ERR_IN_OPERAND)
- # Make sure the macro in exception list is encapsulated by double quote
- # For example: DEFINE ARCH = IA32 X64
- # $(ARCH) is replaced with "IA32 X64"
- if ExceptionList and Macro in ExceptionList:
- RetStr += '"' + Macros[Macro] + '"'
- elif Macros[Macro].strip():
- RetStr += Macros[Macro]
- else:
- RetStr += '""'
- else:
- RetStr += Macros[Macro]
- RetStr += String[MacroEndPos+1:]
- String = RetStr
- MacroStartPos = String.find('$(')
- StrList[i] = RetStr
- return ''.join(StrList)
-
-# transfer int to string for in/not in expression
-def IntToStr(Value):
- StrList = []
- while Value > 0:
- StrList.append(chr(Value & 0xff))
- Value = Value >> 8
- Value = '"' + ''.join(StrList) + '"'
- return Value
-
-SupportedInMacroList = ['TARGET', 'TOOL_CHAIN_TAG', 'ARCH', 'FAMILY']
-
-class BaseExpression(object):
- def __init__(self, *args, **kwargs):
- super(BaseExpression, self).__init__()
-
- # Check if current token matches the operators given from parameter
- def _IsOperator(self, OpSet):
- Idx = self._Idx
- self._GetOperator()
- if self._Token in OpSet:
- if self._Token in self.LogicalOperators:
- self._Token = self.LogicalOperators[self._Token]
- return True
- self._Idx = Idx
- return False
-
-class ValueExpression(BaseExpression):
- # Logical operator mapping
- LogicalOperators = {
- '&&' : 'and', '||' : 'or',
- '!' : 'not', 'AND': 'and',
- 'OR' : 'or' , 'NOT': 'not',
- 'XOR': '^' , 'xor': '^',
- 'EQ' : '==' , 'NE' : '!=',
- 'GT' : '>' , 'LT' : '<',
- 'GE' : '>=' , 'LE' : '<=',
- 'IN' : 'in'
- }
-
- NonLetterOpLst = ['+', '-', TAB_STAR, '/', '%', '&', '|', '^', '~', '<<', '>>', '!', '=', '>', '<', '?', ':']
-
-
- SymbolPattern = re.compile("("
- r"\$\([A-Z][A-Z0-9_]*\)|\$\(\w+\.\w+\)|\w+\.\w+|"
- r"&&|\|\||!(?!=)|"
- r"(?<=\W)AND(?=\W)|(?<=\W)OR(?=\W)|(?<=\W)NOT(?=\W)|(?<=\W)XOR(?=\W)|"
- r"(?<=\W)EQ(?=\W)|(?<=\W)NE(?=\W)|(?<=\W)GT(?=\W)|(?<=\W)LT(?=\W)|(?<=\W)GE(?=\W)|(?<=\W)LE(?=\W)"
- ")")
-
- @staticmethod
- def Eval(Operator, Oprand1, Oprand2 = None):
- WrnExp = None
-
- if Operator not in {"==", "!=", ">=", "<=", ">", "<", "in", "not in"} and \
- (isinstance(Oprand1, type('')) or isinstance(Oprand2, type(''))):
- raise BadExpression(ERR_STRING_EXPR % Operator)
- if Operator in {'in', 'not in'}:
- if not isinstance(Oprand1, type('')):
- Oprand1 = IntToStr(Oprand1)
- if not isinstance(Oprand2, type('')):
- Oprand2 = IntToStr(Oprand2)
- TypeDict = {
- type(0) : 0,
- # For python2 long type
- type(sys.maxsize + 1) : 0,
- type('') : 1,
- type(True) : 2
- }
-
- EvalStr = ''
- if Operator in {"!", "NOT", "not"}:
- if isinstance(Oprand1, type('')):
- raise BadExpression(ERR_STRING_EXPR % Operator)
- EvalStr = 'not Oprand1'
- elif Operator in {"~"}:
- if isinstance(Oprand1, type('')):
- raise BadExpression(ERR_STRING_EXPR % Operator)
- EvalStr = '~ Oprand1'
- else:
- if Operator in {"+", "-"} and (type(True) in {type(Oprand1), type(Oprand2)}):
- # Boolean in '+'/'-' will be evaluated but raise warning
- WrnExp = WrnExpression(WRN_BOOL_EXPR)
- elif type('') in {type(Oprand1), type(Oprand2)} and not isinstance(Oprand1, type(Oprand2)):
- # == between string and number/boolean will always return False, != return True
- if Operator == "==":
- WrnExp = WrnExpression(WRN_EQCMP_STR_OTHERS)
- WrnExp.result = False
- raise WrnExp
- elif Operator == "!=":
- WrnExp = WrnExpression(WRN_NECMP_STR_OTHERS)
- WrnExp.result = True
- raise WrnExp
- else:
- raise BadExpression(ERR_RELCMP_STR_OTHERS % Operator)
- elif TypeDict[type(Oprand1)] != TypeDict[type(Oprand2)]:
- if Operator in {"==", "!=", ">=", "<=", ">", "<"} and set((TypeDict[type(Oprand1)], TypeDict[type(Oprand2)])) == set((TypeDict[type(True)], TypeDict[type(0)])):
- # comparison between number and boolean is allowed
- pass
- elif Operator in {'&', '|', '^', "and", "or"} and set((TypeDict[type(Oprand1)], TypeDict[type(Oprand2)])) == set((TypeDict[type(True)], TypeDict[type(0)])):
- # bitwise and logical operation between number and boolean is allowed
- pass
- else:
- raise BadExpression(ERR_EXPR_TYPE)
- if isinstance(Oprand1, type('')) and isinstance(Oprand2, type('')):
- if ((Oprand1.startswith('L"') or Oprand1.startswith("L'")) and (not Oprand2.startswith('L"')) and (not Oprand2.startswith("L'"))) or \
- (((not Oprand1.startswith('L"')) and (not Oprand1.startswith("L'"))) and (Oprand2.startswith('L"') or Oprand2.startswith("L'"))):
- raise BadExpression(ERR_STRING_CMP % (Oprand1, Operator, Oprand2))
- if 'in' in Operator and isinstance(Oprand2, type('')):
- Oprand2 = Oprand2.split()
- EvalStr = 'Oprand1 ' + Operator + ' Oprand2'
-
- # Local symbols used by built in eval function
- Dict = {
- 'Oprand1' : Oprand1,
- 'Oprand2' : Oprand2
- }
- try:
- Val = eval(EvalStr, {}, Dict)
- except Exception as Excpt:
- raise BadExpression(str(Excpt))
-
- if Operator in {'and', 'or'}:
- if Val:
- Val = True
- else:
- Val = False
-
- if WrnExp:
- WrnExp.result = Val
- raise WrnExp
- return Val
-
- def __init__(self, Expression, SymbolTable={}):
- super(ValueExpression, self).__init__(self, Expression, SymbolTable)
- self._NoProcess = False
- if not isinstance(Expression, type('')):
- self._Expr = Expression
- self._NoProcess = True
- return
-
- self._Expr = ReplaceExprMacro(Expression.strip(),
- SymbolTable,
- SupportedInMacroList)
-
- if not self._Expr.strip():
- raise BadExpression(ERR_EMPTY_EXPR)
-
- #
- # The symbol table including PCD and macro mapping
- #
- self._Symb = CopyDict(SymbolTable)
- self._Symb.update(self.LogicalOperators)
- self._Idx = 0
- self._Len = len(self._Expr)
- self._Token = ''
- self._WarnExcept = None
-
- # Literal token without any conversion
- self._LiteralToken = ''
-
- # Public entry for this class
- # @param RealValue: False: only evaluate if the expression is true or false, used for conditional expression
- # True : return the evaluated str(value), used for PCD value
- #
- # @return: True or False if RealValue is False
- # Evaluated value of string format if RealValue is True
- #
- def __call__(self, RealValue=False, Depth=0):
- if self._NoProcess:
- return self._Expr
-
- self._Depth = Depth
-
- self._Expr = self._Expr.strip()
- if RealValue and Depth == 0:
- self._Token = self._Expr
- if self.__IsNumberToken():
- return self._Expr
- Token = ''
- try:
- Token = self._GetToken()
- except BadExpression:
- pass
- if isinstance(Token, type('')) and Token.startswith('{') and Token.endswith('}') and self._Idx >= self._Len:
- return self._Expr
-
- self._Idx = 0
- self._Token = ''
-
- Val = self._ConExpr()
- RealVal = Val
- if isinstance(Val, type('')):
- if Val == 'L""':
- Val = False
- elif not Val:
- Val = False
- RealVal = '""'
- elif not Val.startswith('L"') and not Val.startswith('{') and not Val.startswith("L'") and not Val.startswith("'"):
- Val = True
- RealVal = '"' + RealVal + '"'
-
- # The expression has been parsed, but the end of expression is not reached
- # It means the rest does not comply EBNF of <Expression>
- if self._Idx != self._Len:
- raise BadExpression(ERR_SNYTAX % self._Expr[self._Idx:])
-
- if RealValue:
- RetVal = str(RealVal)
- elif Val:
- RetVal = True
- else:
- RetVal = False
-
- if self._WarnExcept:
- self._WarnExcept.result = RetVal
- raise self._WarnExcept
- else:
- return RetVal
-
- # Template function to parse binary operators which have same precedence
- # Expr [Operator Expr]*
- def _ExprFuncTemplate(self, EvalFunc, OpSet):
- Val = EvalFunc()
- while self._IsOperator(OpSet):
- Op = self._Token
- if Op == '?':
- Val2 = EvalFunc()
- if self._IsOperator({':'}):
- Val3 = EvalFunc()
- if Val:
- Val = Val2
- else:
- Val = Val3
- continue
- #
- # PEP 238 -- Changing the Division Operator
- # x/y to return a reasonable approximation of the mathematical result of the division ("true division")
- # x//y to return the floor ("floor division")
- #
- if Op == '/':
- Op = '//'
- try:
- Val = self.Eval(Op, Val, EvalFunc())
- except WrnExpression as Warn:
- self._WarnExcept = Warn
- Val = Warn.result
- return Val
- # A [? B]*
- def _ConExpr(self):
- return self._ExprFuncTemplate(self._OrExpr, {'?', ':'})
-
- # A [|| B]*
- def _OrExpr(self):
- return self._ExprFuncTemplate(self._AndExpr, {"OR", "or", "||"})
-
- # A [&& B]*
- def _AndExpr(self):
- return self._ExprFuncTemplate(self._BitOr, {"AND", "and", "&&"})
-
- # A [ | B]*
- def _BitOr(self):
- return self._ExprFuncTemplate(self._BitXor, {"|"})
-
- # A [ ^ B]*
- def _BitXor(self):
- return self._ExprFuncTemplate(self._BitAnd, {"XOR", "xor", "^"})
-
- # A [ & B]*
- def _BitAnd(self):
- return self._ExprFuncTemplate(self._EqExpr, {"&"})
-
- # A [ == B]*
- def _EqExpr(self):
- Val = self._RelExpr()
- while self._IsOperator({"==", "!=", "EQ", "NE", "IN", "in", "!", "NOT", "not"}):
- Op = self._Token
- if Op in {"!", "NOT", "not"}:
- if not self._IsOperator({"IN", "in"}):
- raise BadExpression(ERR_REL_NOT_IN)
- Op += ' ' + self._Token
- try:
- Val = self.Eval(Op, Val, self._RelExpr())
- except WrnExpression as Warn:
- self._WarnExcept = Warn
- Val = Warn.result
- return Val
-
- # A [ > B]*
- def _RelExpr(self):
- return self._ExprFuncTemplate(self._ShiftExpr, {"<=", ">=", "<", ">", "LE", "GE", "LT", "GT"})
-
- def _ShiftExpr(self):
- return self._ExprFuncTemplate(self._AddExpr, {"<<", ">>"})
-
- # A [ + B]*
- def _AddExpr(self):
- return self._ExprFuncTemplate(self._MulExpr, {"+", "-"})
-
- # A [ * B]*
- def _MulExpr(self):
- return self._ExprFuncTemplate(self._UnaryExpr, {TAB_STAR, "/", "%"})
-
- # [!]*A
- def _UnaryExpr(self):
- if self._IsOperator({"!", "NOT", "not"}):
- Val = self._UnaryExpr()
- try:
- return self.Eval('not', Val)
- except WrnExpression as Warn:
- self._WarnExcept = Warn
- return Warn.result
- if self._IsOperator({"~"}):
- Val = self._UnaryExpr()
- try:
- return self.Eval('~', Val)
- except WrnExpression as Warn:
- self._WarnExcept = Warn
- return Warn.result
- return self._IdenExpr()
-
- # Parse identifier or encapsulated expression
- def _IdenExpr(self):
- Tk = self._GetToken()
- if Tk == '(':
- Val = self._ConExpr()
- try:
- # _GetToken may also raise BadExpression
- if self._GetToken() != ')':
- raise BadExpression(ERR_MATCH)
- except BadExpression:
- raise BadExpression(ERR_MATCH)
- return Val
- return Tk
-
- # Skip whitespace or tab
- def __SkipWS(self):
- for Char in self._Expr[self._Idx:]:
- if Char not in ' \t':
- break
- self._Idx += 1
-
- # Try to convert string to number
- def __IsNumberToken(self):
- Radix = 10
- if self._Token.lower()[0:2] == '0x' and len(self._Token) > 2:
- Radix = 16
- if self._Token.startswith('"') or self._Token.startswith('L"'):
- Flag = 0
- for Index in range(len(self._Token)):
- if self._Token[Index] in {'"'}:
- if self._Token[Index - 1] == '\\':
- continue
- Flag += 1
- if Flag == 2 and self._Token.endswith('"'):
- return True
- if self._Token.startswith("'") or self._Token.startswith("L'"):
- Flag = 0
- for Index in range(len(self._Token)):
- if self._Token[Index] in {"'"}:
- if self._Token[Index - 1] == '\\':
- continue
- Flag += 1
- if Flag == 2 and self._Token.endswith("'"):
- return True
- try:
- self._Token = int(self._Token, Radix)
- return True
- except ValueError:
- return False
- except TypeError:
- return False
-
- # Parse array: {...}
- def __GetArray(self):
- Token = '{'
- self._Idx += 1
- self.__GetNList(True)
- Token += self._LiteralToken
- if self._Idx >= self._Len or self._Expr[self._Idx] != '}':
- raise BadExpression(ERR_ARRAY_TOKEN % Token)
- Token += '}'
-
- # All whitespace and tabs in array are already stripped.
- IsArray = IsGuid = False
- if len(Token.split(',')) == 11 and len(Token.split(',{')) == 2 \
- and len(Token.split('},')) == 1:
- HexLen = [11, 6, 6, 5, 4, 4, 4, 4, 4, 4, 6]
- HexList= Token.split(',')
- if HexList[3].startswith('{') and \
- not [Index for Index, Hex in enumerate(HexList) if len(Hex) > HexLen[Index]]:
- IsGuid = True
- if Token.lstrip('{').rstrip('}').find('{') == -1:
- if not [Hex for Hex in Token.lstrip('{').rstrip('}').split(',') if len(Hex) > 4]:
- IsArray = True
- if not IsArray and not IsGuid:
- raise BadExpression(ERR_ARRAY_TOKEN % Token)
- self._Idx += 1
- self._Token = self._LiteralToken = Token
- return self._Token
-
- # Parse string, the format must be: "..."
- def __GetString(self):
- Idx = self._Idx
-
- # Skip left quote
- self._Idx += 1
-
- # Replace escape \\\", \"
- if self._Expr[Idx] == '"':
- Expr = self._Expr[self._Idx:].replace('\\\\', '//').replace('\\\"', '\\\'')
- for Ch in Expr:
- self._Idx += 1
- if Ch == '"':
- break
- self._Token = self._LiteralToken = self._Expr[Idx:self._Idx]
- if not self._Token.endswith('"'):
- raise BadExpression(ERR_STRING_TOKEN % self._Token)
- #Replace escape \\\', \'
- elif self._Expr[Idx] == "'":
- Expr = self._Expr[self._Idx:].replace('\\\\', '//').replace("\\\'", "\\\"")
- for Ch in Expr:
- self._Idx += 1
- if Ch == "'":
- break
- self._Token = self._LiteralToken = self._Expr[Idx:self._Idx]
- if not self._Token.endswith("'"):
- raise BadExpression(ERR_STRING_TOKEN % self._Token)
- self._Token = self._Token[1:-1]
- return self._Token
-
- # Get token that is comprised by alphanumeric, underscore or dot(used by PCD)
- # @param IsAlphaOp: Indicate if parsing general token or script operator(EQ, NE...)
- def __GetIdToken(self, IsAlphaOp = False):
- IdToken = ''
- for Ch in self._Expr[self._Idx:]:
- if not self.__IsIdChar(Ch) or ('?' in self._Expr and Ch == ':'):
- break
- self._Idx += 1
- IdToken += Ch
-
- self._Token = self._LiteralToken = IdToken
- if not IsAlphaOp:
- self.__ResolveToken()
- return self._Token
-
- # Try to resolve token
- def __ResolveToken(self):
- if not self._Token:
- raise BadExpression(ERR_EMPTY_TOKEN)
-
- # PCD token
- if PcdPattern.match(self._Token):
- if self._Token not in self._Symb:
- Ex = BadExpression(ERR_PCD_RESOLVE % self._Token)
- Ex.Pcd = self._Token
- raise Ex
- self._Token = ValueExpression(self._Symb[self._Token], self._Symb)(True, self._Depth+1)
- if not isinstance(self._Token, type('')):
- self._LiteralToken = hex(self._Token)
- return
-
- if self._Token.startswith('"'):
- self._Token = self._Token[1:-1]
- elif self._Token in {"FALSE", "false", "False"}:
- self._Token = False
- elif self._Token in {"TRUE", "true", "True"}:
- self._Token = True
- else:
- self.__IsNumberToken()
-
- def __GetNList(self, InArray=False):
- self._GetSingleToken()
- if not self.__IsHexLiteral():
- if InArray:
- raise BadExpression(ERR_ARRAY_ELE % self._Token)
- return self._Token
-
- self.__SkipWS()
- Expr = self._Expr[self._Idx:]
- if not Expr.startswith(','):
- return self._Token
-
- NList = self._LiteralToken
- while Expr.startswith(','):
- NList += ','
- self._Idx += 1
- self.__SkipWS()
- self._GetSingleToken()
- if not self.__IsHexLiteral():
- raise BadExpression(ERR_ARRAY_ELE % self._Token)
- NList += self._LiteralToken
- self.__SkipWS()
- Expr = self._Expr[self._Idx:]
- self._Token = self._LiteralToken = NList
- return self._Token
-
- def __IsHexLiteral(self):
- if self._LiteralToken.startswith('{') and \
- self._LiteralToken.endswith('}'):
- return True
-
- if gHexPattern.match(self._LiteralToken):
- Token = self._LiteralToken[2:]
- if not Token:
- self._LiteralToken = '0x0'
- else:
- self._LiteralToken = '0x' + Token
- return True
- return False
-
- def _GetToken(self):
- return self.__GetNList()
-
- @staticmethod
- def __IsIdChar(Ch):
- return Ch in '._:' or Ch.isalnum()
-
- # Parse operand
- def _GetSingleToken(self):
- self.__SkipWS()
- Expr = self._Expr[self._Idx:]
- if Expr.startswith('L"'):
- # Skip L
- self._Idx += 1
- UStr = self.__GetString()
- self._Token = 'L"' + UStr + '"'
- return self._Token
- elif Expr.startswith("L'"):
- # Skip L
- self._Idx += 1
- UStr = self.__GetString()
- self._Token = "L'" + UStr + "'"
- return self._Token
- elif Expr.startswith("'"):
- UStr = self.__GetString()
- self._Token = "'" + UStr + "'"
- return self._Token
- elif Expr.startswith('UINT'):
- Re = re.compile(r'(?:UINT8|UINT16|UINT32|UINT64)\((.+)\)')
- try:
- RetValue = Re.search(Expr).group(1)
- except:
- raise BadExpression('Invalid Expression %s' % Expr)
- Idx = self._Idx
- for Ch in Expr:
- self._Idx += 1
- if Ch == '(':
- Prefix = self._Expr[Idx:self._Idx - 1]
- Idx = self._Idx
- if Ch == ')':
- TmpValue = self._Expr[Idx :self._Idx - 1]
- TmpValue = ValueExpression(TmpValue)(True)
- TmpValue = '0x%x' % int(TmpValue) if not isinstance(TmpValue, type('')) else TmpValue
- break
- self._Token, Size = ParseFieldValue(Prefix + '(' + TmpValue + ')')
- return self._Token
-
- self._Token = ''
- if Expr:
- Ch = Expr[0]
- Match = gGuidPattern.match(Expr)
- if Match and not Expr[Match.end():Match.end()+1].isalnum() \
- and Expr[Match.end():Match.end()+1] != '_':
- self._Idx += Match.end()
- self._Token = ValueExpression(GuidStringToGuidStructureString(Expr[0:Match.end()]))(True, self._Depth+1)
- return self._Token
- elif self.__IsIdChar(Ch):
- return self.__GetIdToken()
- elif Ch == '"':
- return self.__GetString()
- elif Ch == '{':
- return self.__GetArray()
- elif Ch == '(' or Ch == ')':
- self._Idx += 1
- self._Token = Ch
- return self._Token
-
- raise BadExpression(ERR_VALID_TOKEN % Expr)
-
- # Parse operator
- def _GetOperator(self):
- self.__SkipWS()
- LegalOpLst = ['&&', '||', '!=', '==', '>=', '<='] + self.NonLetterOpLst + ['?', ':']
-
- self._Token = ''
- Expr = self._Expr[self._Idx:]
-
- # Reach end of expression
- if not Expr:
- return ''
-
- # Script operator: LT, GT, LE, GE, EQ, NE, and, or, xor, not
- if Expr[0].isalpha():
- return self.__GetIdToken(True)
-
- # Start to get regular operator: +, -, <, > ...
- if Expr[0] not in self.NonLetterOpLst:
- return ''
-
- OpToken = ''
- for Ch in Expr:
- if Ch in self.NonLetterOpLst:
- if Ch in ['!', '~'] and OpToken:
- break
- self._Idx += 1
- OpToken += Ch
- else:
- break
-
- if OpToken not in LegalOpLst:
- raise BadExpression(ERR_OPERATOR_UNSUPPORT % OpToken)
- self._Token = OpToken
- return OpToken
-
-class ValueExpressionEx(ValueExpression):
- def __init__(self, PcdValue, PcdType, SymbolTable={}):
- ValueExpression.__init__(self, PcdValue, SymbolTable)
- self.PcdValue = PcdValue
- self.PcdType = PcdType
-
- def __call__(self, RealValue=False, Depth=0):
- PcdValue = self.PcdValue
- if "{CODE(" not in PcdValue:
- try:
- PcdValue = ValueExpression.__call__(self, RealValue, Depth)
- if self.PcdType == TAB_VOID and (PcdValue.startswith("'") or PcdValue.startswith("L'")):
- PcdValue, Size = ParseFieldValue(PcdValue)
- PcdValueList = []
- for I in range(Size):
- PcdValueList.append('0x%02X'%(PcdValue & 0xff))
- PcdValue = PcdValue >> 8
- PcdValue = '{' + ','.join(PcdValueList) + '}'
- elif self.PcdType in TAB_PCD_NUMERIC_TYPES and (PcdValue.startswith("'") or \
- PcdValue.startswith('"') or PcdValue.startswith("L'") or PcdValue.startswith('L"') or PcdValue.startswith('{')):
- raise BadExpression
- except WrnExpression as Value:
- PcdValue = Value.result
- except BadExpression as Value:
- if self.PcdType in TAB_PCD_NUMERIC_TYPES:
- PcdValue = PcdValue.strip()
- if PcdValue.startswith('{') and PcdValue.endswith('}'):
- PcdValue = SplitPcdValueString(PcdValue[1:-1])
- if isinstance(PcdValue, type([])):
- TmpValue = 0
- Size = 0
- ValueType = ''
- for Item in PcdValue:
- Item = Item.strip()
- if Item.startswith(TAB_UINT8):
- ItemSize = 1
- ValueType = TAB_UINT8
- elif Item.startswith(TAB_UINT16):
- ItemSize = 2
- ValueType = TAB_UINT16
- elif Item.startswith(TAB_UINT32):
- ItemSize = 4
- ValueType = TAB_UINT32
- elif Item.startswith(TAB_UINT64):
- ItemSize = 8
- ValueType = TAB_UINT64
- elif Item[0] in {'"', "'", 'L'}:
- ItemSize = 0
- ValueType = TAB_VOID
- else:
- ItemSize = 0
- ValueType = TAB_UINT8
- Item = ValueExpressionEx(Item, ValueType, self._Symb)(True)
- if ItemSize == 0:
- try:
- tmpValue = int(Item, 0)
- if tmpValue > 255:
- raise BadExpression("Byte array number %s should less than 0xFF." % Item)
- except BadExpression as Value:
- raise BadExpression(Value)
- except ValueError:
- pass
- ItemValue, ItemSize = ParseFieldValue(Item)
- else:
- ItemValue = ParseFieldValue(Item)[0]
-
- if isinstance(ItemValue, type('')):
- ItemValue = int(ItemValue, 0)
-
- TmpValue = (ItemValue << (Size * 8)) | TmpValue
- Size = Size + ItemSize
- else:
- try:
- TmpValue, Size = ParseFieldValue(PcdValue)
- except BadExpression as Value:
- raise BadExpression("Type: %s, Value: %s, %s" % (self.PcdType, PcdValue, Value))
- if isinstance(TmpValue, type('')):
- try:
- TmpValue = int(TmpValue)
- except:
- raise BadExpression(Value)
- else:
- PcdValue = '0x%0{}X'.format(Size) % (TmpValue)
- if TmpValue < 0:
- raise BadExpression('Type %s PCD Value is negative' % self.PcdType)
- if self.PcdType == TAB_UINT8 and Size > 1:
- raise BadExpression('Type %s PCD Value Size is Larger than 1 byte' % self.PcdType)
- if self.PcdType == TAB_UINT16 and Size > 2:
- raise BadExpression('Type %s PCD Value Size is Larger than 2 byte' % self.PcdType)
- if self.PcdType == TAB_UINT32 and Size > 4:
- raise BadExpression('Type %s PCD Value Size is Larger than 4 byte' % self.PcdType)
- if self.PcdType == TAB_UINT64 and Size > 8:
- raise BadExpression('Type %s PCD Value Size is Larger than 8 byte' % self.PcdType)
- else:
- try:
- TmpValue = int(PcdValue)
- TmpList = []
- if TmpValue.bit_length() == 0:
- PcdValue = '{0x00}'
- else:
- for I in range((TmpValue.bit_length() + 7) // 8):
- TmpList.append('0x%02x' % ((TmpValue >> I * 8) & 0xff))
- PcdValue = '{' + ', '.join(TmpList) + '}'
- except:
- if PcdValue.strip().startswith('{'):
- PcdValueList = SplitPcdValueString(PcdValue.strip()[1:-1])
- LabelDict = {}
- NewPcdValueList = []
- LabelOffset = 0
- for Item in PcdValueList:
- # compute byte offset of every LABEL
- LabelList = _ReLabel.findall(Item)
- Item = _ReLabel.sub('', Item)
- Item = Item.strip()
- if LabelList:
- for Label in LabelList:
- if not IsValidCName(Label):
- raise BadExpression('%s is not a valid c variable name' % Label)
- if Label not in LabelDict:
- LabelDict[Label] = str(LabelOffset)
- if Item.startswith(TAB_UINT8):
- LabelOffset = LabelOffset + 1
- elif Item.startswith(TAB_UINT16):
- LabelOffset = LabelOffset + 2
- elif Item.startswith(TAB_UINT32):
- LabelOffset = LabelOffset + 4
- elif Item.startswith(TAB_UINT64):
- LabelOffset = LabelOffset + 8
- else:
- try:
- ItemValue, ItemSize = ParseFieldValue(Item)
- LabelOffset = LabelOffset + ItemSize
- except:
- LabelOffset = LabelOffset + 1
-
- for Item in PcdValueList:
- # for LABEL parse
- Item = Item.strip()
- try:
- Item = _ReLabel.sub('', Item)
- except:
- pass
- try:
- OffsetList = _ReOffset.findall(Item)
- except:
- pass
- # replace each offset, except errors
- for Offset in OffsetList:
- try:
- Item = Item.replace('OFFSET_OF({})'.format(Offset), LabelDict[Offset])
- except:
- raise BadExpression('%s not defined' % Offset)
-
- NewPcdValueList.append(Item)
-
- AllPcdValueList = []
- for Item in NewPcdValueList:
- Size = 0
- ValueStr = ''
- TokenSpaceGuidName = ''
- if Item.startswith(TAB_GUID) and Item.endswith(')'):
- try:
- TokenSpaceGuidName = re.search(r'GUID\((\w+)\)', Item).group(1)
- except:
- pass
- if TokenSpaceGuidName and TokenSpaceGuidName in self._Symb:
- Item = 'GUID(' + self._Symb[TokenSpaceGuidName] + ')'
- elif TokenSpaceGuidName:
- raise BadExpression('%s not found in DEC file' % TokenSpaceGuidName)
- Item, Size = ParseFieldValue(Item)
- for Index in range(0, Size):
- ValueStr = '0x%02X' % (int(Item) & 255)
- Item >>= 8
- AllPcdValueList.append(ValueStr)
- continue
- elif Item.startswith('DEVICE_PATH') and Item.endswith(')'):
- Item, Size = ParseFieldValue(Item)
- AllPcdValueList.append(Item[1:-1])
- continue
- else:
- ValueType = ""
- if Item.startswith(TAB_UINT8):
- ItemSize = 1
- ValueType = TAB_UINT8
- elif Item.startswith(TAB_UINT16):
- ItemSize = 2
- ValueType = TAB_UINT16
- elif Item.startswith(TAB_UINT32):
- ItemSize = 4
- ValueType = TAB_UINT32
- elif Item.startswith(TAB_UINT64):
- ItemSize = 8
- ValueType = TAB_UINT64
- else:
- ItemSize = 0
- if ValueType:
- TmpValue = ValueExpressionEx(Item, ValueType, self._Symb)(True)
- else:
- TmpValue = ValueExpressionEx(Item, self.PcdType, self._Symb)(True)
- Item = '0x%x' % TmpValue if not isinstance(TmpValue, type('')) else TmpValue
- if ItemSize == 0:
- ItemValue, ItemSize = ParseFieldValue(Item)
- if Item[0] not in {'"', 'L', '{'} and ItemSize > 1:
- raise BadExpression("Byte array number %s should less than 0xFF." % Item)
- else:
- ItemValue = ParseFieldValue(Item)[0]
- for I in range(0, ItemSize):
- ValueStr = '0x%02X' % (int(ItemValue) & 255)
- ItemValue >>= 8
- AllPcdValueList.append(ValueStr)
- Size += ItemSize
-
- if Size > 0:
- PcdValue = '{' + ', '.join(AllPcdValueList) + '}'
- else:
- raise BadExpression("Type: %s, Value: %s, %s"%(self.PcdType, PcdValue, Value))
-
- if PcdValue == 'True':
- PcdValue = '1'
- if PcdValue == 'False':
- PcdValue = '0'
-
- if RealValue:
- return PcdValue
-
-if __name__ == '__main__':
- pass
- while True:
- input = raw_input('Input expr: ')
- if input in 'qQ':
- break
- try:
- print(ValueExpression(input)(True))
- print(ValueExpression(input)(False))
- except WrnExpression as Ex:
- print(Ex.result)
- print(str(Ex))
- except Exception as Ex:
- print(str(Ex))
+## @file +# This file is used to parse and evaluate expression in directive or PCD value. +# +# Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR> +# SPDX-License-Identifier: BSD-2-Clause-Patent + +## Import Modules +# +from __future__ import print_function +from __future__ import absolute_import +from Common.GlobalData import * +from CommonDataClass.Exceptions import BadExpression +from CommonDataClass.Exceptions import WrnExpression +from .Misc import GuidStringToGuidStructureString, ParseFieldValue,CopyDict +import Common.EdkLogger as EdkLogger +import copy +from Common.DataType import * +import sys +from random import sample +import string + +ERR_STRING_EXPR = 'This operator cannot be used in string expression: [%s].' +ERR_SNYTAX = 'Syntax error, the rest of expression cannot be evaluated: [%s].' +ERR_MATCH = 'No matching right parenthesis.' +ERR_STRING_TOKEN = 'Bad string token: [%s].' +ERR_MACRO_TOKEN = 'Bad macro token: [%s].' +ERR_EMPTY_TOKEN = 'Empty token is not allowed.' +ERR_PCD_RESOLVE = 'The PCD should be FeatureFlag type or FixedAtBuild type: [%s].' +ERR_VALID_TOKEN = 'No more valid token found from rest of string: [%s].' +ERR_EXPR_TYPE = 'Different types found in expression.' +ERR_OPERATOR_UNSUPPORT = 'Unsupported operator: [%s]' +ERR_REL_NOT_IN = 'Expect "IN" after "not" operator.' +WRN_BOOL_EXPR = 'Operand of boolean type cannot be used in arithmetic expression.' +WRN_EQCMP_STR_OTHERS = '== Comparison between Operand of string type and Boolean/Number Type always return False.' +WRN_NECMP_STR_OTHERS = '!= Comparison between Operand of string type and Boolean/Number Type always return True.' +ERR_RELCMP_STR_OTHERS = 'Operator taking Operand of string type and Boolean/Number Type is not allowed: [%s].' +ERR_STRING_CMP = 'Unicode string and general string cannot be compared: [%s %s %s]' +ERR_ARRAY_TOKEN = 'Bad C array or C format GUID token: [%s].' +ERR_ARRAY_ELE = 'This must be HEX value for NList or Array: [%s].' +ERR_EMPTY_EXPR = 'Empty expression is not allowed.' +ERR_IN_OPERAND = 'Macro after IN operator can only be: $(FAMILY), $(ARCH), $(TOOL_CHAIN_TAG) and $(TARGET).' + +__ValidString = re.compile(r'[_a-zA-Z][_0-9a-zA-Z]*$') +_ReLabel = re.compile(r'LABEL\((\w+)\)') +_ReOffset = re.compile(r'OFFSET_OF\((\w+)\)') +PcdPattern = re.compile(r'^[_a-zA-Z][0-9A-Za-z_]*\.[_a-zA-Z][0-9A-Za-z_]*$') + +## SplitString +# Split string to list according double quote +# For example: abc"de\"f"ghi"jkl"mn will be: ['abc', '"de\"f"', 'ghi', '"jkl"', 'mn'] +# +def SplitString(String): + # There might be escaped quote: "abc\"def\\\"ghi", 'abc\'def\\\'ghi' + RanStr = ''.join(sample(string.ascii_letters + string.digits, 8)) + String = String.replace('\\\\', RanStr).strip() + RetList = [] + InSingleQuote = False + InDoubleQuote = False + Item = '' + for i, ch in enumerate(String): + if ch == '"' and not InSingleQuote: + if String[i - 1] != '\\': + InDoubleQuote = not InDoubleQuote + if not InDoubleQuote: + Item += String[i] + RetList.append(Item) + Item = '' + continue + if Item: + RetList.append(Item) + Item = '' + elif ch == "'" and not InDoubleQuote: + if String[i - 1] != '\\': + InSingleQuote = not InSingleQuote + if not InSingleQuote: + Item += String[i] + RetList.append(Item) + Item = '' + continue + if Item: + RetList.append(Item) + Item = '' + Item += String[i] + if InSingleQuote or InDoubleQuote: + raise BadExpression(ERR_STRING_TOKEN % Item) + if Item: + RetList.append(Item) + for i, ch in enumerate(RetList): + if RanStr in ch: + RetList[i] = ch.replace(RanStr,'\\\\') + return RetList + +def SplitPcdValueString(String): + # There might be escaped comma in GUID() or DEVICE_PATH() or " " + # or ' ' or L' ' or L" " + RanStr = ''.join(sample(string.ascii_letters + string.digits, 8)) + String = String.replace('\\\\', RanStr).strip() + RetList = [] + InParenthesis = 0 + InSingleQuote = False + InDoubleQuote = False + Item = '' + for i, ch in enumerate(String): + if ch == '(': + InParenthesis += 1 + elif ch == ')': + if InParenthesis: + InParenthesis -= 1 + else: + raise BadExpression(ERR_STRING_TOKEN % Item) + elif ch == '"' and not InSingleQuote: + if String[i-1] != '\\': + InDoubleQuote = not InDoubleQuote + elif ch == "'" and not InDoubleQuote: + if String[i-1] != '\\': + InSingleQuote = not InSingleQuote + elif ch == ',': + if InParenthesis or InSingleQuote or InDoubleQuote: + Item += String[i] + continue + elif Item: + RetList.append(Item) + Item = '' + continue + Item += String[i] + if InSingleQuote or InDoubleQuote or InParenthesis: + raise BadExpression(ERR_STRING_TOKEN % Item) + if Item: + RetList.append(Item) + for i, ch in enumerate(RetList): + if RanStr in ch: + RetList[i] = ch.replace(RanStr,'\\\\') + return RetList + +def IsValidCName(Str): + return True if __ValidString.match(Str) else False + +def BuildOptionValue(PcdValue, GuidDict): + if PcdValue.startswith('H'): + InputValue = PcdValue[1:] + elif PcdValue.startswith("L'") or PcdValue.startswith("'"): + InputValue = PcdValue + elif PcdValue.startswith('L'): + InputValue = 'L"' + PcdValue[1:] + '"' + else: + InputValue = PcdValue + try: + PcdValue = ValueExpressionEx(InputValue, TAB_VOID, GuidDict)(True) + except: + pass + + return PcdValue + +## ReplaceExprMacro +# +def ReplaceExprMacro(String, Macros, ExceptionList = None): + StrList = SplitString(String) + for i, String in enumerate(StrList): + InQuote = False + if String.startswith('"'): + InQuote = True + MacroStartPos = String.find('$(') + if MacroStartPos < 0: + for Pcd in gPlatformPcds: + if Pcd in String: + if Pcd not in gConditionalPcds: + gConditionalPcds.append(Pcd) + continue + RetStr = '' + while MacroStartPos >= 0: + RetStr = String[0:MacroStartPos] + MacroEndPos = String.find(')', MacroStartPos) + if MacroEndPos < 0: + raise BadExpression(ERR_MACRO_TOKEN % String[MacroStartPos:]) + Macro = String[MacroStartPos+2:MacroEndPos] + if Macro not in Macros: + # From C reference manual: + # If an undefined macro name appears in the constant-expression of + # !if or !elif, it is replaced by the integer constant 0. + RetStr += '0' + elif not InQuote: + Tklst = RetStr.split() + if Tklst and Tklst[-1] in {'IN', 'in'} and ExceptionList and Macro not in ExceptionList: + raise BadExpression(ERR_IN_OPERAND) + # Make sure the macro in exception list is encapsulated by double quote + # For example: DEFINE ARCH = IA32 X64 + # $(ARCH) is replaced with "IA32 X64" + if ExceptionList and Macro in ExceptionList: + RetStr += '"' + Macros[Macro] + '"' + elif Macros[Macro].strip(): + RetStr += Macros[Macro] + else: + RetStr += '""' + else: + RetStr += Macros[Macro] + RetStr += String[MacroEndPos+1:] + String = RetStr + MacroStartPos = String.find('$(') + StrList[i] = RetStr + return ''.join(StrList) + +# transfer int to string for in/not in expression +def IntToStr(Value): + StrList = [] + while Value > 0: + StrList.append(chr(Value & 0xff)) + Value = Value >> 8 + Value = '"' + ''.join(StrList) + '"' + return Value + +SupportedInMacroList = ['TARGET', 'TOOL_CHAIN_TAG', 'ARCH', 'FAMILY'] + +class BaseExpression(object): + def __init__(self, *args, **kwargs): + super(BaseExpression, self).__init__() + + # Check if current token matches the operators given from parameter + def _IsOperator(self, OpSet): + Idx = self._Idx + self._GetOperator() + if self._Token in OpSet: + if self._Token in self.LogicalOperators: + self._Token = self.LogicalOperators[self._Token] + return True + self._Idx = Idx + return False + +class ValueExpression(BaseExpression): + # Logical operator mapping + LogicalOperators = { + '&&' : 'and', '||' : 'or', + '!' : 'not', 'AND': 'and', + 'OR' : 'or' , 'NOT': 'not', + 'XOR': '^' , 'xor': '^', + 'EQ' : '==' , 'NE' : '!=', + 'GT' : '>' , 'LT' : '<', + 'GE' : '>=' , 'LE' : '<=', + 'IN' : 'in' + } + + NonLetterOpLst = ['+', '-', TAB_STAR, '/', '%', '&', '|', '^', '~', '<<', '>>', '!', '=', '>', '<', '?', ':'] + + + SymbolPattern = re.compile("(" + r"\$\([A-Z][A-Z0-9_]*\)|\$\(\w+\.\w+\)|\w+\.\w+|" + r"&&|\|\||!(?!=)|" + r"(?<=\W)AND(?=\W)|(?<=\W)OR(?=\W)|(?<=\W)NOT(?=\W)|(?<=\W)XOR(?=\W)|" + r"(?<=\W)EQ(?=\W)|(?<=\W)NE(?=\W)|(?<=\W)GT(?=\W)|(?<=\W)LT(?=\W)|(?<=\W)GE(?=\W)|(?<=\W)LE(?=\W)" + ")") + + @staticmethod + def Eval(Operator, Oprand1, Oprand2 = None): + WrnExp = None + + if Operator not in {"==", "!=", ">=", "<=", ">", "<", "in", "not in"} and \ + (isinstance(Oprand1, type('')) or isinstance(Oprand2, type(''))): + raise BadExpression(ERR_STRING_EXPR % Operator) + if Operator in {'in', 'not in'}: + if not isinstance(Oprand1, type('')): + Oprand1 = IntToStr(Oprand1) + if not isinstance(Oprand2, type('')): + Oprand2 = IntToStr(Oprand2) + TypeDict = { + type(0) : 0, + # For python2 long type + type(sys.maxsize + 1) : 0, + type('') : 1, + type(True) : 2 + } + + EvalStr = '' + if Operator in {"!", "NOT", "not"}: + if isinstance(Oprand1, type('')): + raise BadExpression(ERR_STRING_EXPR % Operator) + EvalStr = 'not Oprand1' + elif Operator in {"~"}: + if isinstance(Oprand1, type('')): + raise BadExpression(ERR_STRING_EXPR % Operator) + EvalStr = '~ Oprand1' + else: + if Operator in {"+", "-"} and (type(True) in {type(Oprand1), type(Oprand2)}): + # Boolean in '+'/'-' will be evaluated but raise warning + WrnExp = WrnExpression(WRN_BOOL_EXPR) + elif type('') in {type(Oprand1), type(Oprand2)} and not isinstance(Oprand1, type(Oprand2)): + # == between string and number/boolean will always return False, != return True + if Operator == "==": + WrnExp = WrnExpression(WRN_EQCMP_STR_OTHERS) + WrnExp.result = False + raise WrnExp + elif Operator == "!=": + WrnExp = WrnExpression(WRN_NECMP_STR_OTHERS) + WrnExp.result = True + raise WrnExp + else: + raise BadExpression(ERR_RELCMP_STR_OTHERS % Operator) + elif TypeDict[type(Oprand1)] != TypeDict[type(Oprand2)]: + if Operator in {"==", "!=", ">=", "<=", ">", "<"} and set((TypeDict[type(Oprand1)], TypeDict[type(Oprand2)])) == set((TypeDict[type(True)], TypeDict[type(0)])): + # comparison between number and boolean is allowed + pass + elif Operator in {'&', '|', '^', "and", "or"} and set((TypeDict[type(Oprand1)], TypeDict[type(Oprand2)])) == set((TypeDict[type(True)], TypeDict[type(0)])): + # bitwise and logical operation between number and boolean is allowed + pass + else: + raise BadExpression(ERR_EXPR_TYPE) + if isinstance(Oprand1, type('')) and isinstance(Oprand2, type('')): + if ((Oprand1.startswith('L"') or Oprand1.startswith("L'")) and (not Oprand2.startswith('L"')) and (not Oprand2.startswith("L'"))) or \ + (((not Oprand1.startswith('L"')) and (not Oprand1.startswith("L'"))) and (Oprand2.startswith('L"') or Oprand2.startswith("L'"))): + raise BadExpression(ERR_STRING_CMP % (Oprand1, Operator, Oprand2)) + if 'in' in Operator and isinstance(Oprand2, type('')): + Oprand2 = Oprand2.split() + EvalStr = 'Oprand1 ' + Operator + ' Oprand2' + + # Local symbols used by built in eval function + Dict = { + 'Oprand1' : Oprand1, + 'Oprand2' : Oprand2 + } + try: + Val = eval(EvalStr, {}, Dict) + except Exception as Excpt: + raise BadExpression(str(Excpt)) + + if Operator in {'and', 'or'}: + if Val: + Val = True + else: + Val = False + + if WrnExp: + WrnExp.result = Val + raise WrnExp + return Val + + def __init__(self, Expression, SymbolTable={}): + super(ValueExpression, self).__init__(self, Expression, SymbolTable) + self._NoProcess = False + if not isinstance(Expression, type('')): + self._Expr = Expression + self._NoProcess = True + return + + self._Expr = ReplaceExprMacro(Expression.strip(), + SymbolTable, + SupportedInMacroList) + + if not self._Expr.strip(): + raise BadExpression(ERR_EMPTY_EXPR) + + # + # The symbol table including PCD and macro mapping + # + self._Symb = CopyDict(SymbolTable) + self._Symb.update(self.LogicalOperators) + self._Idx = 0 + self._Len = len(self._Expr) + self._Token = '' + self._WarnExcept = None + + # Literal token without any conversion + self._LiteralToken = '' + + # Public entry for this class + # @param RealValue: False: only evaluate if the expression is true or false, used for conditional expression + # True : return the evaluated str(value), used for PCD value + # + # @return: True or False if RealValue is False + # Evaluated value of string format if RealValue is True + # + def __call__(self, RealValue=False, Depth=0): + if self._NoProcess: + return self._Expr + + self._Depth = Depth + + self._Expr = self._Expr.strip() + if RealValue and Depth == 0: + self._Token = self._Expr + if self.__IsNumberToken(): + return self._Expr + Token = '' + try: + Token = self._GetToken() + except BadExpression: + pass + if isinstance(Token, type('')) and Token.startswith('{') and Token.endswith('}') and self._Idx >= self._Len: + return self._Expr + + self._Idx = 0 + self._Token = '' + + Val = self._ConExpr() + RealVal = Val + if isinstance(Val, type('')): + if Val == 'L""': + Val = False + elif not Val: + Val = False + RealVal = '""' + elif not Val.startswith('L"') and not Val.startswith('{') and not Val.startswith("L'") and not Val.startswith("'"): + Val = True + RealVal = '"' + RealVal + '"' + + # The expression has been parsed, but the end of expression is not reached + # It means the rest does not comply EBNF of <Expression> + if self._Idx != self._Len: + raise BadExpression(ERR_SNYTAX % self._Expr[self._Idx:]) + + if RealValue: + RetVal = str(RealVal) + elif Val: + RetVal = True + else: + RetVal = False + + if self._WarnExcept: + self._WarnExcept.result = RetVal + raise self._WarnExcept + else: + return RetVal + + # Template function to parse binary operators which have same precedence + # Expr [Operator Expr]* + def _ExprFuncTemplate(self, EvalFunc, OpSet): + Val = EvalFunc() + while self._IsOperator(OpSet): + Op = self._Token + if Op == '?': + Val2 = EvalFunc() + if self._IsOperator({':'}): + Val3 = EvalFunc() + if Val: + Val = Val2 + else: + Val = Val3 + continue + # + # PEP 238 -- Changing the Division Operator + # x/y to return a reasonable approximation of the mathematical result of the division ("true division") + # x//y to return the floor ("floor division") + # + if Op == '/': + Op = '//' + try: + Val = self.Eval(Op, Val, EvalFunc()) + except WrnExpression as Warn: + self._WarnExcept = Warn + Val = Warn.result + return Val + # A [? B]* + def _ConExpr(self): + return self._ExprFuncTemplate(self._OrExpr, {'?', ':'}) + + # A [|| B]* + def _OrExpr(self): + return self._ExprFuncTemplate(self._AndExpr, {"OR", "or", "||"}) + + # A [&& B]* + def _AndExpr(self): + return self._ExprFuncTemplate(self._BitOr, {"AND", "and", "&&"}) + + # A [ | B]* + def _BitOr(self): + return self._ExprFuncTemplate(self._BitXor, {"|"}) + + # A [ ^ B]* + def _BitXor(self): + return self._ExprFuncTemplate(self._BitAnd, {"XOR", "xor", "^"}) + + # A [ & B]* + def _BitAnd(self): + return self._ExprFuncTemplate(self._EqExpr, {"&"}) + + # A [ == B]* + def _EqExpr(self): + Val = self._RelExpr() + while self._IsOperator({"==", "!=", "EQ", "NE", "IN", "in", "!", "NOT", "not"}): + Op = self._Token + if Op in {"!", "NOT", "not"}: + if not self._IsOperator({"IN", "in"}): + raise BadExpression(ERR_REL_NOT_IN) + Op += ' ' + self._Token + try: + Val = self.Eval(Op, Val, self._RelExpr()) + except WrnExpression as Warn: + self._WarnExcept = Warn + Val = Warn.result + return Val + + # A [ > B]* + def _RelExpr(self): + return self._ExprFuncTemplate(self._ShiftExpr, {"<=", ">=", "<", ">", "LE", "GE", "LT", "GT"}) + + def _ShiftExpr(self): + return self._ExprFuncTemplate(self._AddExpr, {"<<", ">>"}) + + # A [ + B]* + def _AddExpr(self): + return self._ExprFuncTemplate(self._MulExpr, {"+", "-"}) + + # A [ * B]* + def _MulExpr(self): + return self._ExprFuncTemplate(self._UnaryExpr, {TAB_STAR, "/", "%"}) + + # [!]*A + def _UnaryExpr(self): + if self._IsOperator({"!", "NOT", "not"}): + Val = self._UnaryExpr() + try: + return self.Eval('not', Val) + except WrnExpression as Warn: + self._WarnExcept = Warn + return Warn.result + if self._IsOperator({"~"}): + Val = self._UnaryExpr() + try: + return self.Eval('~', Val) + except WrnExpression as Warn: + self._WarnExcept = Warn + return Warn.result + return self._IdenExpr() + + # Parse identifier or encapsulated expression + def _IdenExpr(self): + Tk = self._GetToken() + if Tk == '(': + Val = self._ConExpr() + try: + # _GetToken may also raise BadExpression + if self._GetToken() != ')': + raise BadExpression(ERR_MATCH) + except BadExpression: + raise BadExpression(ERR_MATCH) + return Val + return Tk + + # Skip whitespace or tab + def __SkipWS(self): + for Char in self._Expr[self._Idx:]: + if Char not in ' \t': + break + self._Idx += 1 + + # Try to convert string to number + def __IsNumberToken(self): + Radix = 10 + if self._Token.lower()[0:2] == '0x' and len(self._Token) > 2: + Radix = 16 + if self._Token.startswith('"') or self._Token.startswith('L"'): + Flag = 0 + for Index in range(len(self._Token)): + if self._Token[Index] in {'"'}: + if self._Token[Index - 1] == '\\': + continue + Flag += 1 + if Flag == 2 and self._Token.endswith('"'): + return True + if self._Token.startswith("'") or self._Token.startswith("L'"): + Flag = 0 + for Index in range(len(self._Token)): + if self._Token[Index] in {"'"}: + if self._Token[Index - 1] == '\\': + continue + Flag += 1 + if Flag == 2 and self._Token.endswith("'"): + return True + try: + self._Token = int(self._Token, Radix) + return True + except ValueError: + return False + except TypeError: + return False + + # Parse array: {...} + def __GetArray(self): + Token = '{' + self._Idx += 1 + self.__GetNList(True) + Token += self._LiteralToken + if self._Idx >= self._Len or self._Expr[self._Idx] != '}': + raise BadExpression(ERR_ARRAY_TOKEN % Token) + Token += '}' + + # All whitespace and tabs in array are already stripped. + IsArray = IsGuid = False + if len(Token.split(',')) == 11 and len(Token.split(',{')) == 2 \ + and len(Token.split('},')) == 1: + HexLen = [11, 6, 6, 5, 4, 4, 4, 4, 4, 4, 6] + HexList= Token.split(',') + if HexList[3].startswith('{') and \ + not [Index for Index, Hex in enumerate(HexList) if len(Hex) > HexLen[Index]]: + IsGuid = True + if Token.lstrip('{').rstrip('}').find('{') == -1: + if not [Hex for Hex in Token.lstrip('{').rstrip('}').split(',') if len(Hex) > 4]: + IsArray = True + if not IsArray and not IsGuid: + raise BadExpression(ERR_ARRAY_TOKEN % Token) + self._Idx += 1 + self._Token = self._LiteralToken = Token + return self._Token + + # Parse string, the format must be: "..." + def __GetString(self): + Idx = self._Idx + + # Skip left quote + self._Idx += 1 + + # Replace escape \\\", \" + if self._Expr[Idx] == '"': + Expr = self._Expr[self._Idx:].replace('\\\\', '//').replace('\\\"', '\\\'') + for Ch in Expr: + self._Idx += 1 + if Ch == '"': + break + self._Token = self._LiteralToken = self._Expr[Idx:self._Idx] + if not self._Token.endswith('"'): + raise BadExpression(ERR_STRING_TOKEN % self._Token) + #Replace escape \\\', \' + elif self._Expr[Idx] == "'": + Expr = self._Expr[self._Idx:].replace('\\\\', '//').replace("\\\'", "\\\"") + for Ch in Expr: + self._Idx += 1 + if Ch == "'": + break + self._Token = self._LiteralToken = self._Expr[Idx:self._Idx] + if not self._Token.endswith("'"): + raise BadExpression(ERR_STRING_TOKEN % self._Token) + self._Token = self._Token[1:-1] + return self._Token + + # Get token that is comprised by alphanumeric, underscore or dot(used by PCD) + # @param IsAlphaOp: Indicate if parsing general token or script operator(EQ, NE...) + def __GetIdToken(self, IsAlphaOp = False): + IdToken = '' + for Ch in self._Expr[self._Idx:]: + if not self.__IsIdChar(Ch) or ('?' in self._Expr and Ch == ':'): + break + self._Idx += 1 + IdToken += Ch + + self._Token = self._LiteralToken = IdToken + if not IsAlphaOp: + self.__ResolveToken() + return self._Token + + # Try to resolve token + def __ResolveToken(self): + if not self._Token: + raise BadExpression(ERR_EMPTY_TOKEN) + + # PCD token + if PcdPattern.match(self._Token): + if self._Token not in self._Symb: + Ex = BadExpression(ERR_PCD_RESOLVE % self._Token) + Ex.Pcd = self._Token + raise Ex + self._Token = ValueExpression(self._Symb[self._Token], self._Symb)(True, self._Depth+1) + if not isinstance(self._Token, type('')): + self._LiteralToken = hex(self._Token) + return + + if self._Token.startswith('"'): + self._Token = self._Token[1:-1] + elif self._Token in {"FALSE", "false", "False"}: + self._Token = False + elif self._Token in {"TRUE", "true", "True"}: + self._Token = True + else: + self.__IsNumberToken() + + def __GetNList(self, InArray=False): + self._GetSingleToken() + if not self.__IsHexLiteral(): + if InArray: + raise BadExpression(ERR_ARRAY_ELE % self._Token) + return self._Token + + self.__SkipWS() + Expr = self._Expr[self._Idx:] + if not Expr.startswith(','): + return self._Token + + NList = self._LiteralToken + while Expr.startswith(','): + NList += ',' + self._Idx += 1 + self.__SkipWS() + self._GetSingleToken() + if not self.__IsHexLiteral(): + raise BadExpression(ERR_ARRAY_ELE % self._Token) + NList += self._LiteralToken + self.__SkipWS() + Expr = self._Expr[self._Idx:] + self._Token = self._LiteralToken = NList + return self._Token + + def __IsHexLiteral(self): + if self._LiteralToken.startswith('{') and \ + self._LiteralToken.endswith('}'): + return True + + if gHexPattern.match(self._LiteralToken): + Token = self._LiteralToken[2:] + if not Token: + self._LiteralToken = '0x0' + else: + self._LiteralToken = '0x' + Token + return True + return False + + def _GetToken(self): + return self.__GetNList() + + @staticmethod + def __IsIdChar(Ch): + return Ch in '._:' or Ch.isalnum() + + # Parse operand + def _GetSingleToken(self): + self.__SkipWS() + Expr = self._Expr[self._Idx:] + if Expr.startswith('L"'): + # Skip L + self._Idx += 1 + UStr = self.__GetString() + self._Token = 'L"' + UStr + '"' + return self._Token + elif Expr.startswith("L'"): + # Skip L + self._Idx += 1 + UStr = self.__GetString() + self._Token = "L'" + UStr + "'" + return self._Token + elif Expr.startswith("'"): + UStr = self.__GetString() + self._Token = "'" + UStr + "'" + return self._Token + elif Expr.startswith('UINT'): + Re = re.compile(r'(?:UINT8|UINT16|UINT32|UINT64)\((.+)\)') + try: + RetValue = Re.search(Expr).group(1) + except: + raise BadExpression('Invalid Expression %s' % Expr) + Idx = self._Idx + for Ch in Expr: + self._Idx += 1 + if Ch == '(': + Prefix = self._Expr[Idx:self._Idx - 1] + Idx = self._Idx + if Ch == ')': + TmpValue = self._Expr[Idx :self._Idx - 1] + TmpValue = ValueExpression(TmpValue)(True) + TmpValue = '0x%x' % int(TmpValue) if not isinstance(TmpValue, type('')) else TmpValue + break + self._Token, Size = ParseFieldValue(Prefix + '(' + TmpValue + ')') + return self._Token + + self._Token = '' + if Expr: + Ch = Expr[0] + Match = gGuidPattern.match(Expr) + if Match and not Expr[Match.end():Match.end()+1].isalnum() \ + and Expr[Match.end():Match.end()+1] != '_': + self._Idx += Match.end() + self._Token = ValueExpression(GuidStringToGuidStructureString(Expr[0:Match.end()]))(True, self._Depth+1) + return self._Token + elif self.__IsIdChar(Ch): + return self.__GetIdToken() + elif Ch == '"': + return self.__GetString() + elif Ch == '{': + return self.__GetArray() + elif Ch == '(' or Ch == ')': + self._Idx += 1 + self._Token = Ch + return self._Token + + raise BadExpression(ERR_VALID_TOKEN % Expr) + + # Parse operator + def _GetOperator(self): + self.__SkipWS() + LegalOpLst = ['&&', '||', '!=', '==', '>=', '<='] + self.NonLetterOpLst + ['?', ':'] + + self._Token = '' + Expr = self._Expr[self._Idx:] + + # Reach end of expression + if not Expr: + return '' + + # Script operator: LT, GT, LE, GE, EQ, NE, and, or, xor, not + if Expr[0].isalpha(): + return self.__GetIdToken(True) + + # Start to get regular operator: +, -, <, > ... + if Expr[0] not in self.NonLetterOpLst: + return '' + + OpToken = '' + for Ch in Expr: + if Ch in self.NonLetterOpLst: + if Ch in ['!', '~'] and OpToken: + break + self._Idx += 1 + OpToken += Ch + else: + break + + if OpToken not in LegalOpLst: + raise BadExpression(ERR_OPERATOR_UNSUPPORT % OpToken) + self._Token = OpToken + return OpToken + +class ValueExpressionEx(ValueExpression): + def __init__(self, PcdValue, PcdType, SymbolTable={}): + ValueExpression.__init__(self, PcdValue, SymbolTable) + self.PcdValue = PcdValue + self.PcdType = PcdType + + def __call__(self, RealValue=False, Depth=0): + PcdValue = self.PcdValue + if "{CODE(" not in PcdValue: + try: + PcdValue = ValueExpression.__call__(self, RealValue, Depth) + if self.PcdType == TAB_VOID and (PcdValue.startswith("'") or PcdValue.startswith("L'")): + PcdValue, Size = ParseFieldValue(PcdValue) + PcdValueList = [] + for I in range(Size): + PcdValueList.append('0x%02X'%(PcdValue & 0xff)) + PcdValue = PcdValue >> 8 + PcdValue = '{' + ','.join(PcdValueList) + '}' + elif self.PcdType in TAB_PCD_NUMERIC_TYPES and (PcdValue.startswith("'") or \ + PcdValue.startswith('"') or PcdValue.startswith("L'") or PcdValue.startswith('L"') or PcdValue.startswith('{')): + raise BadExpression + except WrnExpression as Value: + PcdValue = Value.result + except BadExpression as Value: + if self.PcdType in TAB_PCD_NUMERIC_TYPES: + PcdValue = PcdValue.strip() + if PcdValue.startswith('{') and PcdValue.endswith('}'): + PcdValue = SplitPcdValueString(PcdValue[1:-1]) + if isinstance(PcdValue, type([])): + TmpValue = 0 + Size = 0 + ValueType = '' + for Item in PcdValue: + Item = Item.strip() + if Item.startswith(TAB_UINT8): + ItemSize = 1 + ValueType = TAB_UINT8 + elif Item.startswith(TAB_UINT16): + ItemSize = 2 + ValueType = TAB_UINT16 + elif Item.startswith(TAB_UINT32): + ItemSize = 4 + ValueType = TAB_UINT32 + elif Item.startswith(TAB_UINT64): + ItemSize = 8 + ValueType = TAB_UINT64 + elif Item[0] in {'"', "'", 'L'}: + ItemSize = 0 + ValueType = TAB_VOID + else: + ItemSize = 0 + ValueType = TAB_UINT8 + Item = ValueExpressionEx(Item, ValueType, self._Symb)(True) + if ItemSize == 0: + try: + tmpValue = int(Item, 0) + if tmpValue > 255: + raise BadExpression("Byte array number %s should less than 0xFF." % Item) + except BadExpression as Value: + raise BadExpression(Value) + except ValueError: + pass + ItemValue, ItemSize = ParseFieldValue(Item) + else: + ItemValue = ParseFieldValue(Item)[0] + + if isinstance(ItemValue, type('')): + ItemValue = int(ItemValue, 0) + + TmpValue = (ItemValue << (Size * 8)) | TmpValue + Size = Size + ItemSize + else: + try: + TmpValue, Size = ParseFieldValue(PcdValue) + except BadExpression as Value: + raise BadExpression("Type: %s, Value: %s, %s" % (self.PcdType, PcdValue, Value)) + if isinstance(TmpValue, type('')): + try: + TmpValue = int(TmpValue) + except: + raise BadExpression(Value) + else: + PcdValue = '0x%0{}X'.format(Size) % (TmpValue) + if TmpValue < 0: + raise BadExpression('Type %s PCD Value is negative' % self.PcdType) + if self.PcdType == TAB_UINT8 and Size > 1: + raise BadExpression('Type %s PCD Value Size is Larger than 1 byte' % self.PcdType) + if self.PcdType == TAB_UINT16 and Size > 2: + raise BadExpression('Type %s PCD Value Size is Larger than 2 byte' % self.PcdType) + if self.PcdType == TAB_UINT32 and Size > 4: + raise BadExpression('Type %s PCD Value Size is Larger than 4 byte' % self.PcdType) + if self.PcdType == TAB_UINT64 and Size > 8: + raise BadExpression('Type %s PCD Value Size is Larger than 8 byte' % self.PcdType) + else: + try: + TmpValue = int(PcdValue) + TmpList = [] + if TmpValue.bit_length() == 0: + PcdValue = '{0x00}' + else: + for I in range((TmpValue.bit_length() + 7) // 8): + TmpList.append('0x%02x' % ((TmpValue >> I * 8) & 0xff)) + PcdValue = '{' + ', '.join(TmpList) + '}' + except: + if PcdValue.strip().startswith('{'): + PcdValueList = SplitPcdValueString(PcdValue.strip()[1:-1]) + LabelDict = {} + NewPcdValueList = [] + LabelOffset = 0 + for Item in PcdValueList: + # compute byte offset of every LABEL + LabelList = _ReLabel.findall(Item) + Item = _ReLabel.sub('', Item) + Item = Item.strip() + if LabelList: + for Label in LabelList: + if not IsValidCName(Label): + raise BadExpression('%s is not a valid c variable name' % Label) + if Label not in LabelDict: + LabelDict[Label] = str(LabelOffset) + if Item.startswith(TAB_UINT8): + LabelOffset = LabelOffset + 1 + elif Item.startswith(TAB_UINT16): + LabelOffset = LabelOffset + 2 + elif Item.startswith(TAB_UINT32): + LabelOffset = LabelOffset + 4 + elif Item.startswith(TAB_UINT64): + LabelOffset = LabelOffset + 8 + else: + try: + ItemValue, ItemSize = ParseFieldValue(Item) + LabelOffset = LabelOffset + ItemSize + except: + LabelOffset = LabelOffset + 1 + + for Item in PcdValueList: + # for LABEL parse + Item = Item.strip() + try: + Item = _ReLabel.sub('', Item) + except: + pass + try: + OffsetList = _ReOffset.findall(Item) + except: + pass + # replace each offset, except errors + for Offset in OffsetList: + try: + Item = Item.replace('OFFSET_OF({})'.format(Offset), LabelDict[Offset]) + except: + raise BadExpression('%s not defined' % Offset) + + NewPcdValueList.append(Item) + + AllPcdValueList = [] + for Item in NewPcdValueList: + Size = 0 + ValueStr = '' + TokenSpaceGuidName = '' + if Item.startswith(TAB_GUID) and Item.endswith(')'): + try: + TokenSpaceGuidName = re.search(r'GUID\((\w+)\)', Item).group(1) + except: + pass + if TokenSpaceGuidName and TokenSpaceGuidName in self._Symb: + Item = 'GUID(' + self._Symb[TokenSpaceGuidName] + ')' + elif TokenSpaceGuidName: + raise BadExpression('%s not found in DEC file' % TokenSpaceGuidName) + Item, Size = ParseFieldValue(Item) + for Index in range(0, Size): + ValueStr = '0x%02X' % (int(Item) & 255) + Item >>= 8 + AllPcdValueList.append(ValueStr) + continue + elif Item.startswith('DEVICE_PATH') and Item.endswith(')'): + Item, Size = ParseFieldValue(Item) + AllPcdValueList.append(Item[1:-1]) + continue + else: + ValueType = "" + if Item.startswith(TAB_UINT8): + ItemSize = 1 + ValueType = TAB_UINT8 + elif Item.startswith(TAB_UINT16): + ItemSize = 2 + ValueType = TAB_UINT16 + elif Item.startswith(TAB_UINT32): + ItemSize = 4 + ValueType = TAB_UINT32 + elif Item.startswith(TAB_UINT64): + ItemSize = 8 + ValueType = TAB_UINT64 + else: + ItemSize = 0 + if ValueType: + TmpValue = ValueExpressionEx(Item, ValueType, self._Symb)(True) + else: + TmpValue = ValueExpressionEx(Item, self.PcdType, self._Symb)(True) + Item = '0x%x' % TmpValue if not isinstance(TmpValue, type('')) else TmpValue + if ItemSize == 0: + ItemValue, ItemSize = ParseFieldValue(Item) + if Item[0] not in {'"', 'L', '{'} and ItemSize > 1: + raise BadExpression("Byte array number %s should less than 0xFF." % Item) + else: + ItemValue = ParseFieldValue(Item)[0] + for I in range(0, ItemSize): + ValueStr = '0x%02X' % (int(ItemValue) & 255) + ItemValue >>= 8 + AllPcdValueList.append(ValueStr) + Size += ItemSize + + if Size > 0: + PcdValue = '{' + ', '.join(AllPcdValueList) + '}' + else: + raise BadExpression("Type: %s, Value: %s, %s"%(self.PcdType, PcdValue, Value)) + + if PcdValue == 'True': + PcdValue = '1' + if PcdValue == 'False': + PcdValue = '0' + + if RealValue: + return PcdValue + +if __name__ == '__main__': + pass + while True: + input = raw_input('Input expr: ') + if input in 'qQ': + break + try: + print(ValueExpression(input)(True)) + print(ValueExpression(input)(False)) + except WrnExpression as Ex: + print(Ex.result) + print(str(Ex)) + except Exception as Ex: + print(str(Ex)) |