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''
' VBA-JSON v2.3.1
' (c) Tim Hall - https://github.com/VBA-tools/VBA-JSON
'
' JSON Converter for VBA
'
' Errors:
' 10001 - JSON parse error
'
' @class JsonConverter
' @author tim.hall.engr@gmail.com
' @license MIT (http://www.opensource.org/licenses/mit-license.php)
'' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '
'
' Based originally on vba-json (with extensive changes)
' BSD license included below
'
' JSONLib, http://code.google.com/p/vba-json/
'
' Copyright (c) 2013, Ryo Yokoyama
' All rights reserved.
'
' Redistribution and use in source and binary forms, with or without
' modification, are permitted provided that the following conditions are met:
' * Redistributions of source code must retain the above copyright
' notice, this list of conditions and the following disclaimer.
' * Redistributions in binary form must reproduce the above copyright
' notice, this list of conditions and the following disclaimer in the
' documentation and/or other materials provided with the distribution.
' * Neither the name of the <organization> nor the
' names of its contributors may be used to endorse or promote products
' derived from this software without specific prior written permission.
'
' THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
' ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
' WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
' DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
' DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
' (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
' LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
' ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
' (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
' SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '
Option Explicit

' === VBA-UTC Headers
#If Mac Then

#If VBA7 Then

' 64-bit Mac (2016)
Private Declare PtrSafe Function utc_popen Lib "/usr/lib/libc.dylib" Alias "popen" _
(ByVal utc_Command As String, ByVal utc_Mode As String) As LongPtr
Private Declare PtrSafe Function utc_pclose Lib "/usr/lib/libc.dylib" Alias "pclose" _
(ByVal utc_File As LongPtr) As LongPtr
Private Declare PtrSafe Function utc_fread Lib "/usr/lib/libc.dylib" Alias "fread" _
(ByVal utc_Buffer As String, ByVal utc_Size As LongPtr, ByVal utc_Number As LongPtr, ByVal utc_File As LongPtr) As LongPtr
Private Declare PtrSafe Function utc_feof Lib "/usr/lib/libc.dylib" Alias "feof" _
(ByVal utc_File As LongPtr) As LongPtr

#Else

' 32-bit Mac
Private Declare Function utc_popen Lib "libc.dylib" Alias "popen" _
(ByVal utc_Command As String, ByVal utc_Mode As String) As Long
Private Declare Function utc_pclose Lib "libc.dylib" Alias "pclose" _
(ByVal utc_File As Long) As Long
Private Declare Function utc_fread Lib "libc.dylib" Alias "fread" _
(ByVal utc_Buffer As String, ByVal utc_Size As Long, ByVal utc_Number As Long, ByVal utc_File As Long) As Long
Private Declare Function utc_feof Lib "libc.dylib" Alias "feof" _
(ByVal utc_File As Long) As Long

#End If

#ElseIf VBA7 Then

' http://msdn.microsoft.com/en-us/library/windows/desktop/ms724421.aspx
' http://msdn.microsoft.com/en-us/library/windows/desktop/ms724949.aspx
' http://msdn.microsoft.com/en-us/library/windows/desktop/ms725485.aspx
Private Declare PtrSafe Function utc_GetTimeZoneInformation Lib "kernel32" Alias "GetTimeZoneInformation" _
(utc_lpTimeZoneInformation As utc_TIME_ZONE_INFORMATION) As Long
Private Declare PtrSafe Function utc_SystemTimeToTzSpecificLocalTime Lib "kernel32" Alias "SystemTimeToTzSpecificLocalTime" _
(utc_lpTimeZoneInformation As utc_TIME_ZONE_INFORMATION, utc_lpUniversalTime As utc_SYSTEMTIME, utc_lpLocalTime As utc_SYSTEMTIME) As Long
Private Declare PtrSafe Function utc_TzSpecificLocalTimeToSystemTime Lib "kernel32" Alias "TzSpecificLocalTimeToSystemTime" _
(utc_lpTimeZoneInformation As utc_TIME_ZONE_INFORMATION, utc_lpLocalTime As utc_SYSTEMTIME, utc_lpUniversalTime As utc_SYSTEMTIME) As Long

#Else

Private Declare Function utc_GetTimeZoneInformation Lib "kernel32" Alias "GetTimeZoneInformation" _
(utc_lpTimeZoneInformation As utc_TIME_ZONE_INFORMATION) As Long
Private Declare Function utc_SystemTimeToTzSpecificLocalTime Lib "kernel32" Alias "SystemTimeToTzSpecificLocalTime" _
(utc_lpTimeZoneInformation As utc_TIME_ZONE_INFORMATION, utc_lpUniversalTime As utc_SYSTEMTIME, utc_lpLocalTime As utc_SYSTEMTIME) As Long
Private Declare Function utc_TzSpecificLocalTimeToSystemTime Lib "kernel32" Alias "TzSpecificLocalTimeToSystemTime" _
(utc_lpTimeZoneInformation As utc_TIME_ZONE_INFORMATION, utc_lpLocalTime As utc_SYSTEMTIME, utc_lpUniversalTime As utc_SYSTEMTIME) As Long

#End If

#If Mac Then

#If VBA7 Then
Private Type utc_ShellResult
utc_Output As String
utc_ExitCode As LongPtr
End Type

#Else

Private Type utc_ShellResult
utc_Output As String
utc_ExitCode As Long
End Type

#End If

#Else

Private Type utc_SYSTEMTIME
utc_wYear As Integer
utc_wMonth As Integer
utc_wDayOfWeek As Integer
utc_wDay As Integer
utc_wHour As Integer
utc_wMinute As Integer
utc_wSecond As Integer
utc_wMilliseconds As Integer
End Type

Private Type utc_TIME_ZONE_INFORMATION
utc_Bias As Long
utc_StandardName(0 To 31) As Integer
utc_StandardDate As utc_SYSTEMTIME
utc_StandardBias As Long
utc_DaylightName(0 To 31) As Integer
utc_DaylightDate As utc_SYSTEMTIME
utc_DaylightBias As Long
End Type

#End If
' === End VBA-UTC

Private Type json_Options
' VBA only stores 15 significant digits, so any numbers larger than that are truncated
' This can lead to issues when BIGINT's are used (e.g. for Ids or Credit Cards), as they will be invalid above 15 digits
' See: http://support.microsoft.com/kb/269370
'
' By default, VBA-JSON will use String for numbers longer than 15 characters that contain only digits
' to override set `JsonConverter.JsonOptions.UseDoubleForLargeNumbers = True`
UseDoubleForLargeNumbers As Boolean

' The JSON standard requires object keys to be quoted (" or '), use this option to allow unquoted keys
AllowUnquotedKeys As Boolean

' The solidus (/) is not required to be escaped, use this option to escape them as \/ in ConvertToJson
EscapeSolidus As Boolean
End Type
Public JsonOptions As json_Options

' ============================================= '
' Public Methods
' ============================================= '

''
' Convert JSON string to object (Dictionary/Collection)
'
' @method ParseJson
' @param {String} json_String
' @return {Object} (Dictionary or Collection)
' @throws 10001 - JSON parse error
''
Public Function ParseJson(ByVal JsonString As String) As Object
Dim json_Index As Long
json_Index = 1

' Remove vbCr, vbLf, and vbTab from json_String
JsonString = VBA.Replace(VBA.Replace(VBA.Replace(JsonString, VBA.vbCr, ""), VBA.vbLf, ""), VBA.vbTab, "")

json_SkipSpaces JsonString, json_Index
Select Case VBA.Mid$(JsonString, json_Index, 1)
Case "{"
Set ParseJson = json_ParseObject(JsonString, json_Index)
Case "["
Set ParseJson = json_ParseArray(JsonString, json_Index)
Case Else
' Error: Invalid JSON string
Err.Raise 10001, "JSONConverter", json_ParseErrorMessage(JsonString, json_Index, "Expecting '{' or '['")
End Select
End Function

''
' Convert object (Dictionary/Collection/Array) to JSON
'
' @method ConvertToJson
' @param {Variant} JsonValue (Dictionary, Collection, or Array)
' @param {Integer|String} Whitespace "Pretty" print json with given number of spaces per indentation (Integer) or given string
' @return {String}
''
Public Function ConvertToJson(ByVal JsonValue As Variant, Optional ByVal Whitespace As Variant, Optional ByVal json_CurrentIndentation As Long = 0) As String
Dim json_Buffer As String
Dim json_BufferPosition As Long
Dim json_BufferLength As Long
Dim json_Index As Long
Dim json_LBound As Long
Dim json_UBound As Long
Dim json_IsFirstItem As Boolean
Dim json_Index2D As Long
Dim json_LBound2D As Long
Dim json_UBound2D As Long
Dim json_IsFirstItem2D As Boolean
Dim json_Key As Variant
Dim json_Value As Variant
Dim json_DateStr As String
Dim json_Converted As String
Dim json_SkipItem As Boolean
Dim json_PrettyPrint As Boolean
Dim json_Indentation As String
Dim json_InnerIndentation As String

json_LBound = -1
json_UBound = -1
json_IsFirstItem = True
json_LBound2D = -1
json_UBound2D = -1
json_IsFirstItem2D = True
json_PrettyPrint = Not IsMissing(Whitespace)

Select Case VBA.VarType(JsonValue)
Case VBA.vbNull
ConvertToJson = "null"
Case VBA.vbDate
' Date
json_DateStr = ConvertToIso(VBA.CDate(JsonValue))

ConvertToJson = """" & json_DateStr & """"
Case VBA.vbString
' String (or large number encoded as string)
If Not JsonOptions.UseDoubleForLargeNumbers And json_StringIsLargeNumber(JsonValue) Then
ConvertToJson = JsonValue
Else
ConvertToJson = """" & json_Encode(JsonValue) & """"
End If
Case VBA.vbBoolean
If JsonValue Then
ConvertToJson = "true"
Else
ConvertToJson = "false"
End If
Case VBA.vbArray To VBA.vbArray + VBA.vbByte
If json_PrettyPrint Then
If VBA.VarType(Whitespace) = VBA.vbString Then
json_Indentation = VBA.String$(json_CurrentIndentation + 1, Whitespace)
json_InnerIndentation = VBA.String$(json_CurrentIndentation + 2, Whitespace)
Else
json_Indentation = VBA.Space$((json_CurrentIndentation + 1) * Whitespace)
json_InnerIndentation = VBA.Space$((json_CurrentIndentation + 2) * Whitespace)
End If
End If

' Array
json_BufferAppend json_Buffer, "[", json_BufferPosition, json_BufferLength

On Error Resume Next

json_LBound = LBound(JsonValue, 1)
json_UBound = UBound(JsonValue, 1)
json_LBound2D = LBound(JsonValue, 2)
json_UBound2D = UBound(JsonValue, 2)

If json_LBound >= 0 And json_UBound >= 0 Then
For json_Index = json_LBound To json_UBound
If json_IsFirstItem Then
json_IsFirstItem = False
Else
' Append comma to previous line
json_BufferAppend json_Buffer, ",", json_BufferPosition, json_BufferLength
End If

If json_LBound2D >= 0 And json_UBound2D >= 0 Then
' 2D Array
If json_PrettyPrint Then
json_BufferAppend json_Buffer, vbNewLine, json_BufferPosition, json_BufferLength
End If
json_BufferAppend json_Buffer, json_Indentation & "[", json_BufferPosition, json_BufferLength

For json_Index2D = json_LBound2D To json_UBound2D
If json_IsFirstItem2D Then
json_IsFirstItem2D = False
Else
json_BufferAppend json_Buffer, ",", json_BufferPosition, json_BufferLength
End If

json_Converted = ConvertToJson(JsonValue(json_Index, json_Index2D), Whitespace, json_CurrentIndentation + 2)

' For Arrays/Collections, undefined (Empty/Nothing) is treated as null
If json_Converted = "" Then
' (nest to only check if converted = "")
If json_IsUndefined(JsonValue(json_Index, json_Index2D)) Then
json_Converted = "null"
End If
End If

If json_PrettyPrint Then
json_Converted = vbNewLine & json_InnerIndentation & json_Converted
End If

json_BufferAppend json_Buffer, json_Converted, json_BufferPosition, json_BufferLength
Next json_Index2D

If json_PrettyPrint Then
json_BufferAppend json_Buffer, vbNewLine, json_BufferPosition, json_BufferLength
End If

json_BufferAppend json_Buffer, json_Indentation & "]", json_BufferPosition, json_BufferLength
json_IsFirstItem2D = True
Else
' 1D Array
json_Converted = ConvertToJson(JsonValue(json_Index), Whitespace, json_CurrentIndentation + 1)

' For Arrays/Collections, undefined (Empty/Nothing) is treated as null
If json_Converted = "" Then
' (nest to only check if converted = "")
If json_IsUndefined(JsonValue(json_Index)) Then
json_Converted = "null"
End If
End If

If json_PrettyPrint Then
json_Converted = vbNewLine & json_Indentation & json_Converted
End If

json_BufferAppend json_Buffer, json_Converted, json_BufferPosition, json_BufferLength
End If
Next json_Index
End If

On Error GoTo 0

If json_PrettyPrint Then
json_BufferAppend json_Buffer, vbNewLine, json_BufferPosition, json_BufferLength

If VBA.VarType(Whitespace) = VBA.vbString Then
json_Indentation = VBA.String$(json_CurrentIndentation, Whitespace)
Else
json_Indentation = VBA.Space$(json_CurrentIndentation * Whitespace)
End If
End If

json_BufferAppend json_Buffer, json_Indentation & "]", json_BufferPosition, json_BufferLength

ConvertToJson = json_BufferToString(json_Buffer, json_BufferPosition)

' Dictionary or Collection
Case VBA.vbObject
If json_PrettyPrint Then
If VBA.VarType(Whitespace) = VBA.vbString Then
json_Indentation = VBA.String$(json_CurrentIndentation + 1, Whitespace)
Else
json_Indentation = VBA.Space$((json_CurrentIndentation + 1) * Whitespace)
End If
End If

' Dictionary
If VBA.TypeName(JsonValue) = "Dictionary" Then
json_BufferAppend json_Buffer, "{", json_BufferPosition, json_BufferLength
For Each json_Key In JsonValue.Keys
' For Objects, undefined (Empty/Nothing) is not added to object
json_Converted = ConvertToJson(JsonValue(json_Key), Whitespace, json_CurrentIndentation + 1)
If json_Converted = "" Then
json_SkipItem = json_IsUndefined(JsonValue(json_Key))
Else
json_SkipItem = False
End If

If Not json_SkipItem Then
If json_IsFirstItem Then
json_IsFirstItem = False
Else
json_BufferAppend json_Buffer, ",", json_BufferPosition, json_BufferLength
End If

If json_PrettyPrint Then
json_Converted = vbNewLine & json_Indentation & """" & json_Key & """: " & json_Converted
Else
json_Converted = """" & json_Key & """:" & json_Converted
End If

json_BufferAppend json_Buffer, json_Converted, json_BufferPosition, json_BufferLength
End If
Next json_Key

If json_PrettyPrint Then
json_BufferAppend json_Buffer, vbNewLine, json_BufferPosition, json_BufferLength

If VBA.VarType(Whitespace) = VBA.vbString Then
json_Indentation = VBA.String$(json_CurrentIndentation, Whitespace)
Else
json_Indentation = VBA.Space$(json_CurrentIndentation * Whitespace)
End If
End If

json_BufferAppend json_Buffer, json_Indentation & "}", json_BufferPosition, json_BufferLength

' Collection
ElseIf VBA.TypeName(JsonValue) = "Collection" Then
json_BufferAppend json_Buffer, "[", json_BufferPosition, json_BufferLength
For Each json_Value In JsonValue
If json_IsFirstItem Then
json_IsFirstItem = False
Else
json_BufferAppend json_Buffer, ",", json_BufferPosition, json_BufferLength
End If

json_Converted = ConvertToJson(json_Value, Whitespace, json_CurrentIndentation + 1)

' For Arrays/Collections, undefined (Empty/Nothing) is treated as null
If json_Converted = "" Then
' (nest to only check if converted = "")
If json_IsUndefined(json_Value) Then
json_Converted = "null"
End If
End If

If json_PrettyPrint Then
json_Converted = vbNewLine & json_Indentation & json_Converted
End If

json_BufferAppend json_Buffer, json_Converted, json_BufferPosition, json_BufferLength
Next json_Value

If json_PrettyPrint Then
json_BufferAppend json_Buffer, vbNewLine, json_BufferPosition, json_BufferLength

If VBA.VarType(Whitespace) = VBA.vbString Then
json_Indentation = VBA.String$(json_CurrentIndentation, Whitespace)
Else
json_Indentation = VBA.Space$(json_CurrentIndentation * Whitespace)
End If
End If

json_BufferAppend json_Buffer, json_Indentation & "]", json_BufferPosition, json_BufferLength
End If

ConvertToJson = json_BufferToString(json_Buffer, json_BufferPosition)
Case VBA.vbInteger, VBA.vbLong, VBA.vbSingle, VBA.vbDouble, VBA.vbCurrency, VBA.vbDecimal
' Number (use decimals for numbers)
ConvertToJson = VBA.Replace(JsonValue, ",", ".")
Case Else
' vbEmpty, vbError, vbDataObject, vbByte, vbUserDefinedType
' Use VBA's built-in to-string
On Error Resume Next
ConvertToJson = JsonValue
On Error GoTo 0
End Select
End Function

' ============================================= '
' Private Functions
' ============================================= '

Private Function json_ParseObject(json_String As String, ByRef json_Index As Long) As Dictionary
Dim json_Key As String
Dim json_NextChar As String

Set json_ParseObject = New Dictionary
json_SkipSpaces json_String, json_Index
If VBA.Mid$(json_String, json_Index, 1) <> "{" Then
Err.Raise 10001, "JSONConverter", json_ParseErrorMessage(json_String, json_Index, "Expecting '{'")
Else
json_Index = json_Index + 1

Do
json_SkipSpaces json_String, json_Index
If VBA.Mid$(json_String, json_Index, 1) = "}" Then
json_Index = json_Index + 1
Exit Function
ElseIf VBA.Mid$(json_String, json_Index, 1) = "," Then
json_Index = json_Index + 1
json_SkipSpaces json_String, json_Index
End If

json_Key = json_ParseKey(json_String, json_Index)
json_NextChar = json_Peek(json_String, json_Index)
If json_NextChar = "[" Or json_NextChar = "{" Then
Set json_ParseObject.Item(json_Key) = json_ParseValue(json_String, json_Index)
Else
json_ParseObject.Item(json_Key) = json_ParseValue(json_String, json_Index)
End If
Loop
End If
End Function

Private Function json_ParseArray(json_String As String, ByRef json_Index As Long) As Collection
Set json_ParseArray = New Collection

json_SkipSpaces json_String, json_Index
If VBA.Mid$(json_String, json_Index, 1) <> "[" Then
Err.Raise 10001, "JSONConverter", json_ParseErrorMessage(json_String, json_Index, "Expecting '['")
Else
json_Index = json_Index + 1

Do
json_SkipSpaces json_String, json_Index
If VBA.Mid$(json_String, json_Index, 1) = "]" Then
json_Index = json_Index + 1
Exit Function
ElseIf VBA.Mid$(json_String, json_Index, 1) = "," Then
json_Index = json_Index + 1
json_SkipSpaces json_String, json_Index
End If

json_ParseArray.Add json_ParseValue(json_String, json_Index)
Loop
End If
End Function

Private Function json_ParseValue(json_String As String, ByRef json_Index As Long) As Variant
json_SkipSpaces json_String, json_Index
Select Case VBA.Mid$(json_String, json_Index, 1)
Case "{"
Set json_ParseValue = json_ParseObject(json_String, json_Index)
Case "["
Set json_ParseValue = json_ParseArray(json_String, json_Index)
Case """", "'"
json_ParseValue = json_ParseString(json_String, json_Index)
Case Else
If VBA.Mid$(json_String, json_Index, 4) = "true" Then
json_ParseValue = True
json_Index = json_Index + 4
ElseIf VBA.Mid$(json_String, json_Index, 5) = "false" Then
json_ParseValue = False
json_Index = json_Index + 5
ElseIf VBA.Mid$(json_String, json_Index, 4) = "null" Then
json_ParseValue = Null
json_Index = json_Index + 4
ElseIf VBA.InStr("+-0123456789", VBA.Mid$(json_String, json_Index, 1)) Then
json_ParseValue = json_ParseNumber(json_String, json_Index)
Else
Err.Raise 10001, "JSONConverter", json_ParseErrorMessage(json_String, json_Index, "Expecting 'STRING', 'NUMBER', null, true, false, '{', or '['")
End If
End Select
End Function

Private Function json_ParseString(json_String As String, ByRef json_Index As Long) As String
Dim json_Quote As String
Dim json_Char As String
Dim json_Code As String
Dim json_Buffer As String
Dim json_BufferPosition As Long
Dim json_BufferLength As Long

json_SkipSpaces json_String, json_Index

' Store opening quote to look for matching closing quote
json_Quote = VBA.Mid$(json_String, json_Index, 1)
json_Index = json_Index + 1

Do While json_Index > 0 And json_Index <= Len(json_String)
json_Char = VBA.Mid$(json_String, json_Index, 1)

Select Case json_Char
Case "\"
' Escaped string, \\, or \/
json_Index = json_Index + 1
json_Char = VBA.Mid$(json_String, json_Index, 1)

Select Case json_Char
Case """", "\", "/", "'"
json_BufferAppend json_Buffer, json_Char, json_BufferPosition, json_BufferLength
json_Index = json_Index + 1
Case "b"
json_BufferAppend json_Buffer, vbBack, json_BufferPosition, json_BufferLength
json_Index = json_Index + 1
Case "f"
json_BufferAppend json_Buffer, vbFormFeed, json_BufferPosition, json_BufferLength
json_Index = json_Index + 1
Case "n"
json_BufferAppend json_Buffer, vbCrLf, json_BufferPosition, json_BufferLength
json_Index = json_Index + 1
Case "r"
json_BufferAppend json_Buffer, vbCr, json_BufferPosition, json_BufferLength
json_Index = json_Index + 1
Case "t"
json_BufferAppend json_Buffer, vbTab, json_BufferPosition, json_BufferLength
json_Index = json_Index + 1
Case "u"
' Unicode character escape (e.g. \u00a9 = Copyright)
json_Index = json_Index + 1
json_Code = VBA.Mid$(json_String, json_Index, 4)
json_BufferAppend json_Buffer, VBA.ChrW(VBA.Val("&h" + json_Code)), json_BufferPosition, json_BufferLength
json_Index = json_Index + 4
End Select
Case json_Quote
json_ParseString = json_BufferToString(json_Buffer, json_BufferPosition)
json_Index = json_Index + 1
Exit Function
Case Else
json_BufferAppend json_Buffer, json_Char, json_BufferPosition, json_BufferLength
json_Index = json_Index + 1
End Select
Loop
End Function

Private Function json_ParseNumber(json_String As String, ByRef json_Index As Long) As Variant
Dim json_Char As String
Dim json_Value As String
Dim json_IsLargeNumber As Boolean

json_SkipSpaces json_String, json_Index

Do While json_Index > 0 And json_Index <= Len(json_String)
json_Char = VBA.Mid$(json_String, json_Index, 1)

If VBA.InStr("+-0123456789.eE", json_Char) Then
' Unlikely to have massive number, so use simple append rather than buffer here
json_Value = json_Value & json_Char
json_Index = json_Index + 1
Else
' Excel only stores 15 significant digits, so any numbers larger than that are truncated
' This can lead to issues when BIGINT's are used (e.g. for Ids or Credit Cards), as they will be invalid above 15 digits
' See: http://support.microsoft.com/kb/269370
'
' Fix: Parse -> String, Convert -> String longer than 15/16 characters containing only numbers and decimal points -> Number
' (decimal doesn't factor into significant digit count, so if present check for 15 digits + decimal = 16)
json_IsLargeNumber = IIf(InStr(json_Value, "."), Len(json_Value) >= 17, Len(json_Value) >= 16)
If Not JsonOptions.UseDoubleForLargeNumbers And json_IsLargeNumber Then
json_ParseNumber = json_Value
Else
' VBA.Val does not use regional settings, so guard for comma is not needed
json_ParseNumber = VBA.Val(json_Value)
End If
Exit Function
End If
Loop
End Function

Private Function json_ParseKey(json_String As String, ByRef json_Index As Long) As String
' Parse key with single or double quotes
If VBA.Mid$(json_String, json_Index, 1) = """" Or VBA.Mid$(json_String, json_Index, 1) = "'" Then
json_ParseKey = json_ParseString(json_String, json_Index)
ElseIf JsonOptions.AllowUnquotedKeys Then
Dim json_Char As String
Do While json_Index > 0 And json_Index <= Len(json_String)
json_Char = VBA.Mid$(json_String, json_Index, 1)
If (json_Char <> " ") And (json_Char <> ":") Then
json_ParseKey = json_ParseKey & json_Char
json_Index = json_Index + 1
Else
Exit Do
End If
Loop
Else
Err.Raise 10001, "JSONConverter", json_ParseErrorMessage(json_String, json_Index, "Expecting '""' or '''")
End If

' Check for colon and skip if present or throw if not present
json_SkipSpaces json_String, json_Index
If VBA.Mid$(json_String, json_Index, 1) <> ":" Then
Err.Raise 10001, "JSONConverter", json_ParseErrorMessage(json_String, json_Index, "Expecting ':'")
Else
json_Index = json_Index + 1
End If
End Function

Private Function json_IsUndefined(ByVal json_Value As Variant) As Boolean
' Empty / Nothing -> undefined
Select Case VBA.VarType(json_Value)
Case VBA.vbEmpty
json_IsUndefined = True
Case VBA.vbObject
Select Case VBA.TypeName(json_Value)
Case "Empty", "Nothing"
json_IsUndefined = True
End Select
End Select
End Function

Private Function json_Encode(ByVal json_Text As Variant) As String
' Reference: http://www.ietf.org/rfc/rfc4627.txt
' Escape: ", \, /, backspace, form feed, line feed, carriage return, tab
Dim json_Index As Long
Dim json_Char As String
Dim json_AscCode As Long
Dim json_Buffer As String
Dim json_BufferPosition As Long
Dim json_BufferLength As Long

For json_Index = 1 To VBA.Len(json_Text)
json_Char = VBA.Mid$(json_Text, json_Index, 1)
json_AscCode = VBA.AscW(json_Char)

' When AscW returns a negative number, it returns the twos complement form of that number.
' To convert the twos complement notation into normal binary notation, add 0xFFF to the return result.
' https://support.microsoft.com/en-us/kb/272138
If json_AscCode < 0 Then
json_AscCode = json_AscCode + 65536
End If

' From spec, ", \, and control characters must be escaped (solidus is optional)

Select Case json_AscCode
Case 34
' " -> 34 -> \"
json_Char = "\"""
Case 92
' \ -> 92 -> \\
json_Char = "\\"
Case 47
' / -> 47 -> \/ (optional)
If JsonOptions.EscapeSolidus Then
json_Char = "\/"
End If
Case 8
' backspace -> 8 -> \b
json_Char = "\b"
Case 12
' form feed -> 12 -> \f
json_Char = "\f"
Case 10
' line feed -> 10 -> \n
json_Char = "\n"
Case 13
' carriage return -> 13 -> \r
json_Char = "\r"
Case 9
' tab -> 9 -> \t
json_Char = "\t"
Case 0 To 31, 127 To 65535
' Non-ascii characters -> convert to 4-digit hex
json_Char = "\u" & VBA.Right$("0000" & VBA.Hex$(json_AscCode), 4)
End Select

json_BufferAppend json_Buffer, json_Char, json_BufferPosition, json_BufferLength
Next json_Index

json_Encode = json_BufferToString(json_Buffer, json_BufferPosition)
End Function

Private Function json_Peek(json_String As String, ByVal json_Index As Long, Optional json_NumberOfCharacters As Long = 1) As String
' "Peek" at the next number of characters without incrementing json_Index (ByVal instead of ByRef)
json_SkipSpaces json_String, json_Index
json_Peek = VBA.Mid$(json_String, json_Index, json_NumberOfCharacters)
End Function

Private Sub json_SkipSpaces(json_String As String, ByRef json_Index As Long)
' Increment index to skip over spaces
Do While json_Index > 0 And json_Index <= VBA.Len(json_String) And VBA.Mid$(json_String, json_Index, 1) = " "
json_Index = json_Index + 1
Loop
End Sub

Private Function json_StringIsLargeNumber(json_String As Variant) As Boolean
' Check if the given string is considered a "large number"
' (See json_ParseNumber)

Dim json_Length As Long
Dim json_CharIndex As Long
json_Length = VBA.Len(json_String)

' Length with be at least 16 characters and assume will be less than 100 characters
If json_Length >= 16 And json_Length <= 100 Then
Dim json_CharCode As String

json_StringIsLargeNumber = True

For json_CharIndex = 1 To json_Length
json_CharCode = VBA.Asc(VBA.Mid$(json_String, json_CharIndex, 1))
Select Case json_CharCode
' Look for .|0-9|E|e
Case 46, 48 To 57, 69, 101
' Continue through characters
Case Else
json_StringIsLargeNumber = False
Exit Function
End Select
Next json_CharIndex
End If
End Function

Private Function json_ParseErrorMessage(json_String As String, ByRef json_Index As Long, ErrorMessage As String)
' Provide detailed parse error message, including details of where and what occurred
'
' Example:
' Error parsing JSON:
' {"abcde":True}
' ^
' Expecting 'STRING', 'NUMBER', null, true, false, '{', or '['

Dim json_StartIndex As Long
Dim json_StopIndex As Long

' Include 10 characters before and after error (if possible)
json_StartIndex = json_Index - 10
json_StopIndex = json_Index + 10
If json_StartIndex <= 0 Then
json_StartIndex = 1
End If
If json_StopIndex > VBA.Len(json_String) Then
json_StopIndex = VBA.Len(json_String)
End If

json_ParseErrorMessage = "Error parsing JSON:" & VBA.vbNewLine & _
VBA.Mid$(json_String, json_StartIndex, json_StopIndex - json_StartIndex + 1) & VBA.vbNewLine & _
VBA.Space$(json_Index - json_StartIndex) & "^" & VBA.vbNewLine & _
ErrorMessage
End Function

Private Sub json_BufferAppend(ByRef json_Buffer As String, _
ByRef json_Append As Variant, _
ByRef json_BufferPosition As Long, _
ByRef json_BufferLength As Long)
' VBA can be slow to append strings due to allocating a new string for each append
' Instead of using the traditional append, allocate a large empty string and then copy string at append position
'
' Example:
' Buffer: "abc "
' Append: "def"
' Buffer Position: 3
' Buffer Length: 5
'
' Buffer position + Append length > Buffer length -> Append chunk of blank space to buffer
' Buffer: "abc "
' Buffer Length: 10
'
' Put "def" into buffer at position 3 (0-based)
' Buffer: "abcdef "
'
' Approach based on cStringBuilder from vbAccelerator
' http://www.vbaccelerator.com/home/VB/Code/Techniques/RunTime_Debug_Tracing/VB6_Tracer_Utility_zip_cStringBuilder_cls.asp
'
' and clsStringAppend from Philip Swannell
' https://github.com/VBA-tools/VBA-JSON/pull/82

Dim json_AppendLength As Long
Dim json_LengthPlusPosition As Long

json_AppendLength = VBA.Len(json_Append)
json_LengthPlusPosition = json_AppendLength + json_BufferPosition

If json_LengthPlusPosition > json_BufferLength Then
' Appending would overflow buffer, add chunk
' (double buffer length or append length, whichever is bigger)
Dim json_AddedLength As Long
json_AddedLength = IIf(json_AppendLength > json_BufferLength, json_AppendLength, json_BufferLength)

json_Buffer = json_Buffer & VBA.Space$(json_AddedLength)
json_BufferLength = json_BufferLength + json_AddedLength
End If

' Note: Namespacing with VBA.Mid$ doesn't work properly here, throwing compile error:
' Function call on left-hand side of assignment must return Variant or Object
Mid$(json_Buffer, json_BufferPosition + 1, json_AppendLength) = CStr(json_Append)
json_BufferPosition = json_BufferPosition + json_AppendLength
End Sub

Private Function json_BufferToString(ByRef json_Buffer As String, ByVal json_BufferPosition As Long) As String
If json_BufferPosition > 0 Then
json_BufferToString = VBA.Left$(json_Buffer, json_BufferPosition)
End If
End Function

''
' VBA-UTC v1.0.6
' (c) Tim Hall - https://github.com/VBA-tools/VBA-UtcConverter
'
' UTC/ISO 8601 Converter for VBA
'
' Errors:
' 10011 - UTC parsing error
' 10012 - UTC conversion error
' 10013 - ISO 8601 parsing error
' 10014 - ISO 8601 conversion error
'
' @module UtcConverter
' @author tim.hall.engr@gmail.com
' @license MIT (http://www.opensource.org/licenses/mit-license.php)
'' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '

' (Declarations moved to top)

' ============================================= '
' Public Methods
' ============================================= '

''
' Parse UTC date to local date
'
' @method ParseUtc
' @param {Date} UtcDate
' @return {Date} Local date
' @throws 10011 - UTC parsing error
''
Public Function ParseUtc(utc_UtcDate As Date) As Date
On Error GoTo utc_ErrorHandling

#If Mac Then
ParseUtc = utc_ConvertDate(utc_UtcDate)
#Else
Dim utc_TimeZoneInfo As utc_TIME_ZONE_INFORMATION
Dim utc_LocalDate As utc_SYSTEMTIME

utc_GetTimeZoneInformation utc_TimeZoneInfo
utc_SystemTimeToTzSpecificLocalTime utc_TimeZoneInfo, utc_DateToSystemTime(utc_UtcDate), utc_LocalDate

ParseUtc = utc_SystemTimeToDate(utc_LocalDate)
#End If

Exit Function

utc_ErrorHandling:
Err.Raise 10011, "UtcConverter.ParseUtc", "UTC parsing error: " & Err.Number & " - " & Err.Description
End Function

''
' Convert local date to UTC date
'
' @method ConvertToUrc
' @param {Date} utc_LocalDate
' @return {Date} UTC date
' @throws 10012 - UTC conversion error
''
Public Function ConvertToUtc(utc_LocalDate As Date) As Date
On Error GoTo utc_ErrorHandling

#If Mac Then
ConvertToUtc = utc_ConvertDate(utc_LocalDate, utc_ConvertToUtc:=True)
#Else
Dim utc_TimeZoneInfo As utc_TIME_ZONE_INFORMATION
Dim utc_UtcDate As utc_SYSTEMTIME

utc_GetTimeZoneInformation utc_TimeZoneInfo
utc_TzSpecificLocalTimeToSystemTime utc_TimeZoneInfo, utc_DateToSystemTime(utc_LocalDate), utc_UtcDate

ConvertToUtc = utc_SystemTimeToDate(utc_UtcDate)
#End If

Exit Function

utc_ErrorHandling:
Err.Raise 10012, "UtcConverter.ConvertToUtc", "UTC conversion error: " & Err.Number & " - " & Err.Description
End Function

''
' Parse ISO 8601 date string to local date
'
' @method ParseIso
' @param {Date} utc_IsoString
' @return {Date} Local date
' @throws 10013 - ISO 8601 parsing error
''
Public Function ParseIso(utc_IsoString As String) As Date
On Error GoTo utc_ErrorHandling

Dim utc_Parts() As String
Dim utc_DateParts() As String
Dim utc_TimeParts() As String
Dim utc_OffsetIndex As Long
Dim utc_HasOffset As Boolean
Dim utc_NegativeOffset As Boolean
Dim utc_OffsetParts() As String
Dim utc_Offset As Date

utc_Parts = VBA.Split(utc_IsoString, "T")
utc_DateParts = VBA.Split(utc_Parts(0), "-")
ParseIso = VBA.DateSerial(VBA.CInt(utc_DateParts(0)), VBA.CInt(utc_DateParts(1)), VBA.CInt(utc_DateParts(2)))

If UBound(utc_Parts) > 0 Then
If VBA.InStr(utc_Parts(1), "Z") Then
utc_TimeParts = VBA.Split(VBA.Replace(utc_Parts(1), "Z", ""), ":")
Else
utc_OffsetIndex = VBA.InStr(1, utc_Parts(1), "+")
If utc_OffsetIndex = 0 Then
utc_NegativeOffset = True
utc_OffsetIndex = VBA.InStr(1, utc_Parts(1), "-")
End If

If utc_OffsetIndex > 0 Then
utc_HasOffset = True
utc_TimeParts = VBA.Split(VBA.Left$(utc_Parts(1), utc_OffsetIndex - 1), ":")
utc_OffsetParts = VBA.Split(VBA.Right$(utc_Parts(1), Len(utc_Parts(1)) - utc_OffsetIndex), ":")

Select Case UBound(utc_OffsetParts)
Case 0
utc_Offset = TimeSerial(VBA.CInt(utc_OffsetParts(0)), 0, 0)
Case 1
utc_Offset = TimeSerial(VBA.CInt(utc_OffsetParts(0)), VBA.CInt(utc_OffsetParts(1)), 0)
Case 2
' VBA.Val does not use regional settings, use for seconds to avoid decimal/comma issues
utc_Offset = TimeSerial(VBA.CInt(utc_OffsetParts(0)), VBA.CInt(utc_OffsetParts(1)), Int(VBA.Val(utc_OffsetParts(2))))
End Select

If utc_NegativeOffset Then: utc_Offset = -utc_Offset
Else
utc_TimeParts = VBA.Split(utc_Parts(1), ":")
End If
End If

Select Case UBound(utc_TimeParts)
Case 0
ParseIso = ParseIso + VBA.TimeSerial(VBA.CInt(utc_TimeParts(0)), 0, 0)
Case 1
ParseIso = ParseIso + VBA.TimeSerial(VBA.CInt(utc_TimeParts(0)), VBA.CInt(utc_TimeParts(1)), 0)
Case 2
' VBA.Val does not use regional settings, use for seconds to avoid decimal/comma issues
ParseIso = ParseIso + VBA.TimeSerial(VBA.CInt(utc_TimeParts(0)), VBA.CInt(utc_TimeParts(1)), Int(VBA.Val(utc_TimeParts(2))))
End Select

ParseIso = ParseUtc(ParseIso)

If utc_HasOffset Then
ParseIso = ParseIso - utc_Offset
End If
End If

Exit Function

utc_ErrorHandling:
Err.Raise 10013, "UtcConverter.ParseIso", "ISO 8601 parsing error for " & utc_IsoString & ": " & Err.Number & " - " & Err.Description
End Function

''
' Convert local date to ISO 8601 string
'
' @method ConvertToIso
' @param {Date} utc_LocalDate
' @return {Date} ISO 8601 string
' @throws 10014 - ISO 8601 conversion error
''
Public Function ConvertToIso(utc_LocalDate As Date) As String
On Error GoTo utc_ErrorHandling

ConvertToIso = VBA.Format$(ConvertToUtc(utc_LocalDate), "yyyy-mm-ddTHH:mm:ss.000Z")

Exit Function

utc_ErrorHandling:
Err.Raise 10014, "UtcConverter.ConvertToIso", "ISO 8601 conversion error: " & Err.Number & " - " & Err.Description
End Function

' ============================================= '
' Private Functions
' ============================================= '

#If Mac Then

Private Function utc_ConvertDate(utc_Value As Date, Optional utc_ConvertToUtc As Boolean = False) As Date
Dim utc_ShellCommand As String
Dim utc_Result As utc_ShellResult
Dim utc_Parts() As String
Dim utc_DateParts() As String
Dim utc_TimeParts() As String

If utc_ConvertToUtc Then
utc_ShellCommand = "date -ur `date -jf '%Y-%m-%d %H:%M:%S' " & _
"'" & VBA.Format$(utc_Value, "yyyy-mm-dd HH:mm:ss") & "' " & _
" +'%s'` +'%Y-%m-%d %H:%M:%S'"
Else
utc_ShellCommand = "date -jf '%Y-%m-%d %H:%M:%S %z' " & _
"'" & VBA.Format$(utc_Value, "yyyy-mm-dd HH:mm:ss") & " +0000' " & _
"+'%Y-%m-%d %H:%M:%S'"
End If

utc_Result = utc_ExecuteInShell(utc_ShellCommand)

If utc_Result.utc_Output = "" Then
Err.Raise 10015, "UtcConverter.utc_ConvertDate", "'date' command failed"
Else
utc_Parts = Split(utc_Result.utc_Output, " ")
utc_DateParts = Split(utc_Parts(0), "-")
utc_TimeParts = Split(utc_Parts(1), ":")

utc_ConvertDate = DateSerial(utc_DateParts(0), utc_DateParts(1), utc_DateParts(2)) + _
TimeSerial(utc_TimeParts(0), utc_TimeParts(1), utc_TimeParts(2))
End If
End Function

Private Function utc_ExecuteInShell(utc_ShellCommand As String) As utc_ShellResult
#If VBA7 Then
Dim utc_File As LongPtr
Dim utc_Read As LongPtr
#Else
Dim utc_File As Long
Dim utc_Read As Long
#End If

Dim utc_Chunk As String

On Error GoTo utc_ErrorHandling
utc_File = utc_popen(utc_ShellCommand, "r")

If utc_File = 0 Then: Exit Function

Do While utc_feof(utc_File) = 0
utc_Chunk = VBA.Space$(50)
utc_Read = CLng(utc_fread(utc_Chunk, 1, Len(utc_Chunk) - 1, utc_File))
If utc_Read > 0 Then
utc_Chunk = VBA.Left$(utc_Chunk, CLng(utc_Read))
utc_ExecuteInShell.utc_Output = utc_ExecuteInShell.utc_Output & utc_Chunk
End If
Loop

utc_ErrorHandling:
utc_ExecuteInShell.utc_ExitCode = CLng(utc_pclose(utc_File))
End Function

#Else

Private Function utc_DateToSystemTime(utc_Value As Date) As utc_SYSTEMTIME
utc_DateToSystemTime.utc_wYear = VBA.Year(utc_Value)
utc_DateToSystemTime.utc_wMonth = VBA.Month(utc_Value)
utc_DateToSystemTime.utc_wDay = VBA.Day(utc_Value)
utc_DateToSystemTime.utc_wHour = VBA.Hour(utc_Value)
utc_DateToSystemTime.utc_wMinute = VBA.Minute(utc_Value)
utc_DateToSystemTime.utc_wSecond = VBA.Second(utc_Value)
utc_DateToSystemTime.utc_wMilliseconds = 0
End Function

Private Function utc_SystemTimeToDate(utc_Value As utc_SYSTEMTIME) As Date
utc_SystemTimeToDate = DateSerial(utc_Value.utc_wYear, utc_Value.utc_wMonth, utc_Value.utc_wDay) + _
TimeSerial(utc_Value.utc_wHour, utc_Value.utc_wMinute, utc_Value.utc_wSecond)
End Function

#End If

 

 

 

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