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expression processing: fixed error if expression contained nested unary operators such as log(sqrt(4))
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Daniel
2025-04-19 10:54:41 +02:00
parent 0d888edc52
commit 90a4194283
3 changed files with 10 additions and 8 deletions
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4
package/src/ExpressionProcessing.jl
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@ -9,6 +9,8 @@ export ExpressionElement
@enum Operator ADD=1 SUBTRACT=2 MULTIPLY=3 DIVIDE=4 POWER=5 ABS=6 LOG=7 EXP=8 SQRT=9
@enum ElementType EMPTY=0 FLOAT32=1 OPERATOR=2 INDEX=3
const unary_operators = [ABS, LOG, EXP, SQRT]
struct ExpressionElement
Type::ElementType
Value::Int32 # Reinterpret the stored value to type "ElementType" when using it
@ -46,7 +48,7 @@ function expr_to_postfix(expr::Expr)::PostfixType
end
# For the case this expression has an operator that only takes in a single value like "abs(x)"
if length(postfix) == 1
if operator in unary_operators
push!(postfix, convert_to_ExpressionElement(operator))
end
return postfix