Making use of the baller ass new highlighting style

You can just press s it's fine

calculate.go

@@ -183,7 +183,6 @@ func (operation *Operation) solution () (solution int64, err error) {
 
 func (operation *Operation) inexactSolution () (solution float64, err error) {
 	var subSolution float64
-	var rawSolution uint64
 	
 	switch operation.opcode {
 	case OpcodeAdd:
@@ -194,13 +193,6 @@ func (operation *Operation) inexactSolution () (solution float64, err error) {
 		}
 		
 	case OpcodeSubtract:
-		if len(operation.operands) == 1 {
-			solution, err = operation.operands[0].InexactSolution()
-			solution *= -1
-			if err != nil { return }
-			break
-		}
-	
 		for index, operand := range operation.operands {
 			subSolution, err = operand.InexactSolution()
 			if err != nil { return }
@@ -271,88 +263,10 @@ func (operation *Operation) inexactSolution () (solution float64, err error) {
 			}
 		}
 	
-	case OpcodeOr:
-		for _, operand := range operation.operands {
-			subSolution, err = operand.InexactSolution()
-			if err != nil { return }
-			rawSolution |= math.Float64bits(subSolution)
-		}
-		solution = math.Float64frombits(rawSolution)
-		
-	case OpcodeNot:
-		if len(operation.operands) != 1 {
-			err = ErrorWrongOperandCount
-			return
-		}
-
-		subSolution, err = operation.operands[0].InexactSolution()
-		solution = math.Float64frombits(^math.Float64bits(subSolution))
-		
-	case OpcodeAnd:
-		for index, operand := range operation.operands {
-			subSolution, err = operand.InexactSolution()
-			if err != nil { return }
-			if index == 0 {
-				rawSolution = math.Float64bits(subSolution)
-			} else {
-				rawSolution &= math.Float64bits(subSolution)
-			}
-		}
-		solution = math.Float64frombits(rawSolution)
-		
-	case OpcodeXor:
-		for index, operand := range operation.operands {
-			subSolution, err = operand.InexactSolution()
-			if err != nil { return }
-			if index == 0 {
-				rawSolution = math.Float64bits(subSolution)
-			} else {
-				rawSolution ^= math.Float64bits(subSolution)
-			}
-		}
-		solution = math.Float64frombits(rawSolution)
-		
-	case OpcodeLeftShift:
-		if len(operation.operands) != 2 {
-			err = ErrorWrongOperandCount
-			return
-		}
-
-		var left, right float64
-		left, err = operation.operands[0].InexactSolution()
-		if err != nil { return }
-		right, err = operation.operands[1].InexactSolution()
-		if err != nil { return }
-
-		if right < 0 {
-			err = ErrorNegativeShiftAmount
-			return
-		}
-
-		solution = math.Float64frombits (
-			math.Float64bits(left) <<
-			math.Float64bits(right))
-		
-	case OpcodeRightShift:
-		if len(operation.operands) != 2 {
-			err = ErrorWrongOperandCount
-			return
-		}
-
-		var left, right float64
-		left, err = operation.operands[0].InexactSolution()
-		if err != nil { return }
-		right, err = operation.operands[1].InexactSolution()
-		if err != nil { return }
-
-		if right < 0 {
-			err = ErrorNegativeShiftAmount
-			return
-		}
-
-		solution = math.Float64frombits (
-			math.Float64bits(left) >>
-			math.Float64bits(right))
+	case
+		OpcodeOr, OpcodeNot, OpcodeAnd, OpcodeXor, OpcodeLeftShift,
+		OpcodeRightShift:
+		err = ErrorWrongType
 		
 	case OpcodeMean:
 		if len(operation.operands) == 0 { break }

draw.go

@@ -60,8 +60,10 @@ func drawInput () {
 
 		if character == '_' {
 			application.SetColor(x + xOffset, y, stone.ColorDim)
+			application.SetStyle(x + xOffset, y, stone.StyleNormal)
 		} else {
 			application.SetColor(x + xOffset, y, cell.Color())
+			application.SetStyle(x + xOffset, y, cell.Style())
 		}
 	}
 }

go.mod

@@ -2,7 +2,7 @@ module git.tebibyte.media/sashakoshka/mathpan
 
 go 1.19
 
-require git.tebibyte.media/sashakoshka/stone v0.0.0-20221124013405-5a76bd0c223d
+require git.tebibyte.media/sashakoshka/stone v0.5.1
 
 require (
 	github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 // indirect

go.sum

@@ -1,5 +1,5 @@
-git.tebibyte.media/sashakoshka/stone v0.0.0-20221124013405-5a76bd0c223d h1:2uDDq+lHbhODq+6hmosmCcAaLOg55a7LOIhiJMzeSds=
-git.tebibyte.media/sashakoshka/stone v0.0.0-20221124013405-5a76bd0c223d/go.mod h1:ISnqmX6xvItOot3eW3YWLcNFeJrGpKetQGQniAjnU2A=
+git.tebibyte.media/sashakoshka/stone v0.5.1 h1:QQo1lccq6bMebXRKlbAoFBKSDbVwvSkXriKHMGvfAkk=
+git.tebibyte.media/sashakoshka/stone v0.5.1/go.mod h1:ISnqmX6xvItOot3eW3YWLcNFeJrGpKetQGQniAjnU2A=
 github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 h1:1qlsVAQJXZHsaM8b6OLVo6muQUQd4CwkH/D3fnnbHXA=
 github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298/go.mod h1:D+QujdIlUNfa0igpNMk6UIvlb6C252URs4yupRUV4lQ=
 github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966 h1:lTG4HQym5oPKjL7nGs+csTgiDna685ZXjxijkne828g=

main.go

@@ -83,12 +83,17 @@ func onPress (button stone.Button, modifiers stone.Modifiers) {
 		}, modifiers.Alt, false, false)
 		redraw()
 		application.Draw()
+
+	case '\\':
+		insertOperation('?', false, true)
+		redraw()
+		application.Draw()
 		
 	case
 		'+', '-', '*', '/', 'p', 'P', '%', '|', '~', '&', '^', 'm',
 		'l', 'r':
 		
-		insertOperation(rune(button), modifiers.Alt)
+		insertOperation(rune(button), modifiers.Alt, false)
 		redraw()
 		application.Draw()
 
@@ -237,6 +242,15 @@ func onPress (button stone.Button, modifiers stone.Modifiers) {
 		redraw()
 		application.Draw()
 
+	case 'z':
+		switch selectedExpression.(type) {
+		case *Operation:
+			operation := selectedExpression.(*Operation)
+			operation.floating = !operation.floating
+		}
+		redraw()
+		application.Draw()
+
 	case 'Z':
 		showFloat = !showFloat
 		redraw()
@@ -244,9 +258,10 @@ func onPress (button stone.Button, modifiers stone.Modifiers) {
 	}
 }
 
-func insertOperation (symbol rune, swap bool) {
+func insertOperation (symbol rune, swap, encompass bool) {
 	var opcode Opcode
 	switch (symbol) {
+	case '?': opcode = OpcodeUnknown
 	case '+': opcode = OpcodeAdd
 	case '-': opcode = OpcodeSubtract
 	case '*': opcode = OpcodeMultiply
@@ -263,6 +278,23 @@ func insertOperation (symbol rune, swap bool) {
 	case 'm': opcode = OpcodeMean
 	}
 
+	newExpression := Operation { opcode: opcode, floating: showFloat }
+
+	if encompass {
+		if selectedExpression == nil { return }
+		parent := selectedExpression.Parent()
+
+		newExpression.Adopt(selectedExpression)
+		if parent == nil {
+			expressionRoot = &newExpression
+		} else {
+			parent.Swap(selectedExpression, &newExpression)
+		}
+
+		selectedExpression = &newExpression
+		return
+	}
+
 	operation, isOperation := selectedExpression.(*Operation)
 	if isOperation {
 		if operation.opcode == OpcodeUnknown || swap {
@@ -270,9 +302,8 @@ func insertOperation (symbol rune, swap bool) {
 			return
 		}
 	}
-
-	newExpression := &Operation { opcode: opcode, floating: showFloat }
-	insertGeneric(newExpression, swap, false, true)
+	
+	insertGeneric(&newExpression, swap, false, true)
 }
 
 func insertNumber (value int64, swap, before bool) {

tree.go

@@ -232,19 +232,22 @@ func (operation *Operation) Render (target stone.Buffer, offset int) (moved int)
 	}
 	
 	if selectedExpression == operation {
-		target.SetColor(offset, 0, stone.ColorBlue)
+		target.SetColor(offset, 0, stone.ColorYellow)
+		target.SetStyle(offset, 0, stone.StyleHighlight)
 	} else {
 		target.SetColor(offset, 0, stone.ColorDim)
+		target.SetStyle(offset, 0, stone.StyleNormal)
 	}
 	moved ++
 
 	opcodeSymbol := operation.opcode.String()
 	for _, character := range opcodeSymbol {
 		target.SetRune(offset + moved, 0, character)
+		target.SetColor(offset + moved, 0, stone.ColorYellow)
 		if selectedExpression == operation {
-			target.SetColor(offset + moved, 0, stone.ColorBlue)
+			target.SetStyle(offset + moved, 0, stone.StyleHighlight)
 		} else {
-			target.SetColor(offset + moved, 0, stone.ColorYellow)
+			target.SetStyle(offset + moved, 0, stone.StyleNormal)
 		}
 		moved ++
 	}
@@ -262,9 +265,11 @@ func (operation *Operation) Render (target stone.Buffer, offset int) (moved int)
 	}
 	
 	if selectedExpression == operation {
-		target.SetColor(offset + moved, 0, stone.ColorBlue)
+		target.SetColor(offset + moved, 0, stone.ColorYellow)
+		target.SetStyle(offset + moved, 0, stone.StyleHighlight)
 	} else {
 		target.SetColor(offset + moved, 0, stone.ColorDim)
+		target.SetStyle(offset + moved, 0, stone.StyleNormal)
 	}
 	moved ++
 	return
@@ -362,10 +367,11 @@ func (literal *IntegerLiteral) Render (target stone.Buffer, offset int) (moved i
 
 	for _, character := range output {
 		target.SetRune(offset + moved, 0, character)
+		target.SetColor(offset + moved, 0, stone.ColorPurple)
 		if selectedExpression == literal {
-			target.SetColor(offset + moved, 0, stone.ColorBlue)
+			target.SetStyle(offset + moved, 0, stone.StyleHighlight)
 		} else {
-			target.SetColor(offset + moved, 0, stone.ColorPurple)
+			target.SetStyle(offset + moved, 0, stone.StyleNormal)
 		}
 		moved ++
 	}