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https://github.com/CHOMPStation2/CHOMPStation2.git
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[MIRROR] Staticpath [MDB ignore] (#12445)
Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>
This commit is contained in:
CHOMPStation2StaffMirrorBot
co-authored by
Kashargul
Kashargul
parent
cc106f8032
commit
ba5224fbcb
@@ -18,7 +18,7 @@
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/*
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Class: nS_Parser
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*/
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/n_Parser/nS_Parser
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/datum/n_Parser/nS_Parser
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/*
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Var: expecting
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A variable which keeps track of whether an operator or value is expected. It should be either <OPERATOR> or <VALUE>. See <ParseExpression()>
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@@ -30,7 +30,7 @@
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Proc: Precedence
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Compares two operators, decides which is higher in the order of operations, and returns <SHIFT> or <REDUCE>.
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*/
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/n_Parser/nS_Parser/proc/Precedence(node/expression/op/top, node/expression/op/input)
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/datum/n_Parser/nS_Parser/proc/Precedence(datum/node/expression/op/top, datum/node/expression/op/input)
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if(istype(top))
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top=top.precedence
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if(istype(input))
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@@ -43,35 +43,35 @@
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Proc: GetExpression
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Takes a token expected to represent a value and returns an <expression> node.
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*/
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/n_Parser/nS_Parser/proc/GetExpression(token/T)
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/datum/n_Parser/nS_Parser/proc/GetExpression(datum/token/T)
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if(!T) return
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if(istype(T, /node/expression))
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if(istype(T, /datum/node/expression))
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return T
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switch(T.type)
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if(/token/word)
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return new/node/expression/value/variable(T.value)
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if(/token/accessor)
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var/token/accessor/A=T
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var/node/expression/value/variable/E//=new(A.member)
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var/stack/S=new()
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while(istype(A.object, /token/accessor))
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if(/datum/token/word)
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return new/datum/node/expression/value/variable(T.value)
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if(/datum/token/accessor)
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var/datum/token/accessor/A=T
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var/datum/node/expression/value/variable/E//=new(A.member)
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var/datum/stack/S=new()
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while(istype(A.object, /datum/token/accessor))
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S.Push(A)
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A=A.object
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ASSERT(istext(A.object))
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while(A)
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var/node/expression/value/variable/V=new()
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var/datum/node/expression/value/variable/V=new()
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V.id=new(A.member)
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if(E)
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V.object=E
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else
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V.object=new/node/identifier(A.object)
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V.object=new/datum/node/identifier(A.object)
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E=V
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A=S.Pop()
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return E
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if(/token/number, /token/string)
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return new/node/expression/value/literal(T.value)
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if(/datum/token/number, /datum/token/string)
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return new/datum/node/expression/value/literal(T.value)
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/*
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Proc: GetOperator
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@@ -88,9 +88,9 @@ See Also:
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- <GetBinaryOperator()>
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- <GetUnaryOperator()>
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*/
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/n_Parser/nS_Parser/proc/GetOperator(O, type=/node/expression/op, L[])
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/datum/n_Parser/nS_Parser/proc/GetOperator(O, type=/datum/node/expression/op, L[])
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if(istype(O, type)) return O //O is already the desired type
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if(istype(O, /token)) O=O:value //sets O to text
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if(istype(O, /datum/token)) O=O:value //sets O to text
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if(istext(O)) //sets O to path
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if(L.Find(O)) O=L[O]
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else return null
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@@ -107,8 +107,8 @@ See Also:
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- <GetOperator()>
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- <GetUnaryOperator()>
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*/
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/n_Parser/nS_Parser/proc/GetBinaryOperator(O)
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return GetOperator(O, /node/expression/op/binary, options.binary_operators)
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/datum/n_Parser/nS_Parser/proc/GetBinaryOperator(O)
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return GetOperator(O, /datum/node/expression/op/binary, options.binary_operators)
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/*
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Proc: GetUnaryOperator
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@@ -119,24 +119,24 @@ See Also:
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- <GetOperator()>
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- <GetBinaryOperator()>
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*/
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/n_Parser/nS_Parser/proc/GetUnaryOperator(O)
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return GetOperator(O, /node/expression/op/unary, options.unary_operators)
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/datum/n_Parser/nS_Parser/proc/GetUnaryOperator(O)
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return GetOperator(O, /datum/node/expression/op/unary, options.unary_operators)
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/*
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Proc: Reduce
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Takes the operator on top of the opr stack and assigns its operand(s). Then this proc pushes the value of that operation to the top
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of the val stack.
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*/
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/n_Parser/nS_Parser/proc/Reduce(stack/opr, stack/val)
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var/node/expression/op/O=opr.Pop()
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/datum/n_Parser/nS_Parser/proc/Reduce(datum/stack/opr, datum/stack/val)
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var/datum/node/expression/op/O=opr.Pop()
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if(!O) return
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if(!istype(O))
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errors+=new/scriptError("Error reducing expression - invalid operator.")
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errors+=new/datum/scriptError("Error reducing expression - invalid operator.")
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return
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//Take O and assign its operands, popping one or two values from the val stack
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//depending on whether O is a binary or unary operator.
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if(istype(O, /node/expression/op/binary))
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var/node/expression/op/binary/B=O
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if(istype(O, /datum/node/expression/op/binary))
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var/datum/node/expression/op/binary/B=O
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B.exp2=val.Pop()
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B.exp =val.Pop()
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val.Push(B)
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@@ -151,12 +151,12 @@ Returns true if the current token represents the end of an expression.
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Parameters:
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end - A list of values to compare the current token to.
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*/
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/n_Parser/nS_Parser/proc/EndOfExpression(end[])
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/datum/n_Parser/nS_Parser/proc/EndOfExpression(end[])
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if(!curToken)
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return 1
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if(istype(curToken, /token/symbol) && end.Find(curToken.value))
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if(istype(curToken, /datum/token/symbol) && end.Find(curToken.value))
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return 1
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if(istype(curToken, /token/end) && end.Find(/token/end))
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if(istype(curToken, /datum/token/end) && end.Find(/datum/token/end))
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return 1
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return 0
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@@ -177,43 +177,43 @@ See Also:
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- <ParseParenExpression()>
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- <ParseParamExpression()>
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*/
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/n_Parser/nS_Parser/proc/ParseExpression(list/end=list(/token/end), list/ErrChars=list("{", "}"))
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var/stack/opr=new
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var/stack/val=new
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/datum/n_Parser/nS_Parser/proc/ParseExpression(list/end=list(/datum/token/end), list/ErrChars=list("{", "}"))
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var/datum/stack/opr=new
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var/datum/stack/val=new
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src.expecting=VALUE
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while(TRUE)
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if(EndOfExpression(end))
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break
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if(istype(curToken, /token/symbol) && ErrChars.Find(curToken.value))
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errors+=new/scriptError/BadToken(curToken)
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if(istype(curToken, /datum/token/symbol) && ErrChars.Find(curToken.value))
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errors+=new/datum/scriptError/BadToken(curToken)
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break
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if(index>tokens.len) //End of File
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errors+=new/scriptError/EndOfFile()
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errors+=new/datum/scriptError/EndOfFile()
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break
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var/token/ntok
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var/datum/token/ntok
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if(index+1<=tokens.len)
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ntok=tokens[index+1]
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if(istype(curToken, /token/symbol) && curToken.value=="(") //Parse parentheses expression
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if(istype(curToken, /datum/token/symbol) && curToken.value=="(") //Parse parentheses expression
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if(expecting!=VALUE)
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errors+=new/scriptError/ExpectedToken("operator", curToken)
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errors+=new/datum/scriptError/ExpectedToken("operator", curToken)
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NextToken()
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continue
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val.Push(ParseParenExpression())
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else if(istype(curToken, /token/symbol)) //Operator found.
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var/node/expression/op/curOperator //Figure out whether it is unary or binary and get a new instance.
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else if(istype(curToken, /datum/token/symbol)) //Operator found.
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var/datum/node/expression/op/curOperator //Figure out whether it is unary or binary and get a new instance.
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if(src.expecting==OPERATOR)
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curOperator=GetBinaryOperator(curToken)
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if(!curOperator)
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errors+=new/scriptError/ExpectedToken("operator", curToken)
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errors+=new/datum/scriptError/ExpectedToken("operator", curToken)
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NextToken()
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continue
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else
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curOperator=GetUnaryOperator(curToken)
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if(!curOperator) //given symbol isn't a unary operator
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errors+=new/scriptError/ExpectedToken("expression", curToken)
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errors+=new/datum/scriptError/ExpectedToken("expression", curToken)
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NextToken()
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continue
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@@ -222,31 +222,31 @@ See Also:
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continue
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opr.Push(curOperator)
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src.expecting=VALUE
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else if(ntok && ntok.value=="(" && istype(ntok, /token/symbol)\
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&& istype(curToken, /token/word)) //Parse function call
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var/token/preToken=curToken
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else if(ntok && ntok.value=="(" && istype(ntok, /datum/token/symbol)\
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&& istype(curToken, /datum/token/word)) //Parse function call
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var/datum/token/preToken=curToken
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var/old_expect=src.expecting
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var/fex=ParseFunctionExpression()
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if(old_expect!=VALUE)
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errors+=new/scriptError/ExpectedToken("operator", preToken)
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errors+=new/datum/scriptError/ExpectedToken("operator", preToken)
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NextToken()
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continue
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val.Push(fex)
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else if(istype(curToken, /token/keyword)) //inline keywords
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var/n_Keyword/kw=options.keywords[curToken.value]
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else if(istype(curToken, /datum/token/keyword)) //inline keywords
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var/datum/n_Keyword/kw=options.keywords[curToken.value]
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kw=new kw(inline=1)
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if(kw)
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if(!kw.Parse(src))
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return
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else
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errors+=new/scriptError/BadToken(curToken)
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else if(istype(curToken, /token/end)) //semicolon found where it wasn't expected
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errors+=new/scriptError/BadToken(curToken)
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errors+=new/datum/scriptError/BadToken(curToken)
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else if(istype(curToken, /datum/token/end)) //semicolon found where it wasn't expected
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errors+=new/datum/scriptError/BadToken(curToken)
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NextToken()
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continue
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else
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if(expecting!=VALUE)
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errors+=new/scriptError/ExpectedToken("operator", curToken)
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errors+=new/datum/scriptError/ExpectedToken("operator", curToken)
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NextToken()
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continue
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val.Push(GetExpression(curToken))
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@@ -256,8 +256,8 @@ See Also:
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while(opr.Top()) Reduce(opr, val) //Reduce the value stack completely
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.=val.Pop() //Return what should be the last value on the stack
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if(val.Top()) //
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var/node/N=val.Pop()
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errors+=new/scriptError("Error parsing expression. Unexpected value left on stack: [N.ToString()].")
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var/datum/node/N=val.Pop()
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errors+=new/datum/scriptError("Error parsing expression. Unexpected value left on stack: [N.ToString()].")
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return null
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/*
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@@ -267,8 +267,8 @@ Parses a function call inside of an expression.
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See Also:
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- <ParseExpression()>
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*/
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/n_Parser/nS_Parser/proc/ParseFunctionExpression()
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var/node/expression/FunctionCall/exp=new
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/datum/n_Parser/nS_Parser/proc/ParseFunctionExpression()
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var/datum/node/expression/FunctionCall/exp=new
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exp.func_name=curToken.value
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NextToken() //skip function name
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NextToken() //skip open parenthesis, already found
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@@ -279,12 +279,12 @@ See Also:
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if(loops>=1000)
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CRASH("Something TERRIBLE has gone wrong in ParseFunctionExpression ;__;")
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if(istype(curToken, /token/symbol) && curToken.value==")")
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if(istype(curToken, /datum/token/symbol) && curToken.value==")")
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return exp
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exp.parameters+=ParseParamExpression()
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if(curToken.value==","&&istype(curToken, /token/symbol))NextToken() //skip comma
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if(istype(curToken, /token/end)) //Prevents infinite loop...
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errors+=new/scriptError/ExpectedToken(")")
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if(curToken.value==","&&istype(curToken, /datum/token/symbol))NextToken() //skip comma
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if(istype(curToken, /datum/token/end)) //Prevents infinite loop...
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errors+=new/datum/scriptError/ExpectedToken(")")
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return exp
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/*
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@@ -294,10 +294,10 @@ Parses an expression that ends with a close parenthesis. This is used for parsin
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See Also:
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- <ParseExpression()>
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*/
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/n_Parser/nS_Parser/proc/ParseParenExpression()
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if(!CheckToken("(", /token/symbol))
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/datum/n_Parser/nS_Parser/proc/ParseParenExpression()
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if(!CheckToken("(", /datum/token/symbol))
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return
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return new/node/expression/op/unary/group(ParseExpression(list(")")))
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return new/datum/node/expression/op/unary/group(ParseExpression(list(")")))
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/*
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Proc: ParseParamExpression
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@@ -306,7 +306,7 @@ Parses an expression that ends with either a comma or close parenthesis. This is
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See Also:
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- <ParseExpression()>
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*/
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/n_Parser/nS_Parser/proc/ParseParamExpression()
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/datum/n_Parser/nS_Parser/proc/ParseParamExpression()
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return ParseExpression(list(",", ")"))
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#undef OPERATOR
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