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#Region "Microsoft.VisualBasic::f99adc89c5dd6da4545b9a3904732d2f, Microsoft.VisualBasic.Core\Serialization\JSON\Formatter\JsonFormatterStrategyContext.vb"
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#End Region
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Imports System.Collections.Generic
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Imports System.Text
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Imports Microsoft.VisualBasic.Serialization.JSON.Formatter.Internals.Strategies
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Namespace Serialization.JSON.Formatter.Internals
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Friend NotInheritable Class JsonFormatterStrategyContext
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Const Space As String = " "
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Const SpacesPerIndent As Integer = 4
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Private m_indent As String = String.Empty
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Private currentCharacter As Char
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Private previousChar As Char
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Private outputBuilder As StringBuilder
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Private ReadOnly scopeState As New FormatterScopeState()
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Private ReadOnly strategies As IDictionary(Of Char, ICharacterStrategy) = New Dictionary(Of Char, ICharacterStrategy)()
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Public ReadOnly Property Indent() As String
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Get
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If Me.m_indent = String.Empty Then
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Me.InitializeIndent()
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End If
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Return Me.m_indent
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End Get
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End Property
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Private Sub InitializeIndent()
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For i As Integer = 0 To SpacesPerIndent - 1
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Me.m_indent += Space
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Next
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End Sub
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Public ReadOnly Property IsInArrayScope() As Boolean
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Get
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Return Me.scopeState.IsTopTypeArray
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End Get
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End Property
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Private Sub AppendIndents(indents As Integer)
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For i As Integer = 0 To indents - 1
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Me.outputBuilder.Append(Indent)
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Next
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End Sub
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Public IsProcessingVariableAssignment As Boolean
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Public Property IsProcessingDoubleQuoteInitiatedString() As Boolean
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Public Property IsProcessingSingleQuoteInitiatedString() As Boolean
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Public ReadOnly Property IsProcessingString() As Boolean
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Get
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Return Me.IsProcessingDoubleQuoteInitiatedString OrElse Me.IsProcessingSingleQuoteInitiatedString
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End Get
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End Property
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Public ReadOnly Property IsStart() As Boolean
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Get
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Return Me.outputBuilder.Length = 0
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End Get
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End Property
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Public ReadOnly Property WasLastCharacterABackSlash() As Boolean
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Get
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Return Me.previousChar = "\"c
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End Get
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End Property
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Public Sub PrettyPrintCharacter(curChar As Char, output As StringBuilder)
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Me.currentCharacter = curChar
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Dim strategy As ICharacterStrategy = If(Me.strategies.ContainsKey(curChar), strategies(curChar), New DefaultCharacterStrategy())
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Me.outputBuilder = output
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strategy.Execute(Me)
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Me.previousChar = curChar
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End Sub
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Public Sub AppendCurrentChar()
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Me.outputBuilder.Append(Me.currentCharacter)
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End Sub
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Public Sub AppendNewLine()
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Me.outputBuilder.Append(Environment.NewLine)
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End Sub
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Public Sub BuildContextIndents()
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Me.AppendNewLine()
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Me.AppendIndents(Me.scopeState.ScopeDepth)
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End Sub
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Public Sub EnterObjectScope()
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Me.scopeState.PushObjectContextOntoStack()
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End Sub
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Public Sub CloseCurrentScope()
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Me.scopeState.PopJsonType()
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End Sub
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Public Sub EnterArrayScope()
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Me.scopeState.PushJsonArrayType()
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End Sub
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Public Sub AppendSpace()
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Me.outputBuilder.Append(Space)
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End Sub
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Public Sub ClearStrategies()
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Me.strategies.Clear()
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End Sub
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Public Sub AddCharacterStrategy(strategy As ICharacterStrategy)
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Me.strategies(strategy.ForWhichCharacter) = strategy
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End Sub
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End Class
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End Namespace
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