vba读写json文件
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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 Sub test2() Dim oZd As Object Set oZd = CreateObject( "scripting.dictionary" ) Set oZd( "1" ) = CreateObject( "scripting.dictionary" ) Set oZd( "2" ) = CreateObject( "scripting.dictionary" ) oZd( "1" )( "照片编号" ) = "img_2690.jPG" oZd( "1" )( "结果" ) = Array( "werou" , "weour" , "sb" ) oZd( "2" )( "照片编号" ) = "img_2690.jPG" oZd( "2" )( "结果" ) = Array( "werou" , "weour" , "sb" ) Dim json As String json = JsonConverter.ConvertToJson(oZd) Dim json_parse As Object ' Set json_parse = CreateObject("scripting.dictionary") Set json_parse = JsonConverter.ParseJson(json) End Sub '============================================= ' ' 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 Object '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 Set json_ParseObject = CreateObject( "scripting.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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