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'Februari 2014 - Version 1.17 by Gerrit van Kuipers
Class aspJSON
Public data
Private p_JSONstring
private aj_in_string, aj_in_escape, aj_i_tmp, aj_char_tmp, aj_s_tmp, aj_line_tmp, aj_line, aj_lines, aj_currentlevel, aj_currentkey, aj_currentvalue, aj_newlabel, aj_XmlHttp, aj_RegExp, aj_colonfound
Private Sub Class_Initialize()
Set data = Collection()
Set aj_RegExp = new regexp
aj_RegExp.Pattern = "\s{0,}(\S{1}[\s,\S]*\S{1})\s{0,}"
aj_RegExp.Global = False
aj_RegExp.IgnoreCase = True
aj_RegExp.Multiline = True
End Sub
Private Sub Class_Terminate()
Set data = Nothing
Set aj_RegExp = Nothing
End Sub
Public Sub loadJSON(inputsource)
inputsource = aj_MultilineTrim(inputsource)
If Len(inputsource) = 0 Then Err.Raise 1, "loadJSON Error", "No data to load."
select case Left(inputsource, 1)
case "{", "["
case else
Set aj_XmlHttp = Server.CreateObject("Msxml2.ServerXMLHTTP")
aj_XmlHttp.open "GET", inputsource, False
aj_XmlHttp.setRequestHeader "Content-Type", "text/json"
aj_XmlHttp.setRequestHeader "CharSet", "UTF-8"
aj_XmlHttp.Send
inputsource = aj_XmlHttp.responseText
set aj_XmlHttp = Nothing
end select
p_JSONstring = CleanUpJSONstring(inputsource)
aj_lines = Split(p_JSONstring, Chr(13) & Chr(10))
Dim level(99)
aj_currentlevel = 1
Set level(aj_currentlevel) = data
For Each aj_line In aj_lines
aj_currentkey = ""
aj_currentvalue = ""
If Instr(aj_line, ":") > 0 Then
aj_in_string = False
aj_in_escape = False
aj_colonfound = False
For aj_i_tmp = 1 To Len(aj_line)
If aj_in_escape Then
aj_in_escape = False
Else
Select Case Mid(aj_line, aj_i_tmp, 1)
Case """"
aj_in_string = Not aj_in_string
Case ":"
If Not aj_in_escape And Not aj_in_string Then
aj_currentkey = Left(aj_line, aj_i_tmp - 1)
aj_currentvalue = Mid(aj_line, aj_i_tmp + 1)
aj_colonfound = True
Exit For
End If
Case "\"
aj_in_escape = True
End Select
End If
Next
if aj_colonfound then
aj_currentkey = aj_Strip(aj_JSONDecode(aj_currentkey), """")
If Not level(aj_currentlevel).exists(aj_currentkey) Then level(aj_currentlevel).Add aj_currentkey, ""
end if
End If
If right(aj_line,1) = "{" Or right(aj_line,1) = "[" Then
If Len(aj_currentkey) = 0 Then aj_currentkey = level(aj_currentlevel).Count
Set level(aj_currentlevel).Item(aj_currentkey) = Collection()
Set level(aj_currentlevel + 1) = level(aj_currentlevel).Item(aj_currentkey)
aj_currentlevel = aj_currentlevel + 1
aj_currentkey = ""
ElseIf right(aj_line,1) = "}" Or right(aj_line,1) = "]" or right(aj_line,2) = "}," Or right(aj_line,2) = "]," Then
aj_currentlevel = aj_currentlevel - 1
ElseIf Len(Trim(aj_line)) > 0 Then
if Len(aj_currentvalue) = 0 Then aj_currentvalue = aj_line
aj_currentvalue = getJSONValue(aj_currentvalue)
If Len(aj_currentkey) = 0 Then aj_currentkey = level(aj_currentlevel).Count
level(aj_currentlevel).Item(aj_currentkey) = aj_currentvalue
End If
Next
End Sub
Public Function Collection()
set Collection = Server.CreateObject("Scripting.Dictionary")
End Function
Public Function AddToCollection(dictobj)
if TypeName(dictobj) <> "Dictionary" then Err.Raise 1, "AddToCollection Error", "Not a collection."
aj_newlabel = dictobj.Count
dictobj.Add aj_newlabel, Collection()
set AddToCollection = dictobj.item(aj_newlabel)
end function
Private Function CleanUpJSONstring(aj_originalstring)
aj_originalstring = Replace(aj_originalstring, Chr(13) & Chr(10), "")
aj_originalstring = Mid(aj_originalstring, 2, Len(aj_originalstring) - 2)
aj_in_string = False : aj_in_escape = False : aj_s_tmp = ""
For aj_i_tmp = 1 To Len(aj_originalstring)
aj_char_tmp = Mid(aj_originalstring, aj_i_tmp, 1)
If aj_in_escape Then
aj_in_escape = False
aj_s_tmp = aj_s_tmp & aj_char_tmp
Else
Select Case aj_char_tmp
Case "\" : aj_s_tmp = aj_s_tmp & aj_char_tmp : aj_in_escape = True
Case """" : aj_s_tmp = aj_s_tmp & aj_char_tmp : aj_in_string = Not aj_in_string
Case "{", "["
aj_s_tmp = aj_s_tmp & aj_char_tmp & aj_InlineIf(aj_in_string, "", Chr(13) & Chr(10))
Case "}", "]"
aj_s_tmp = aj_s_tmp & aj_InlineIf(aj_in_string, "", Chr(13) & Chr(10)) & aj_char_tmp
Case "," : aj_s_tmp = aj_s_tmp & aj_char_tmp & aj_InlineIf(aj_in_string, "", Chr(13) & Chr(10))
Case Else : aj_s_tmp = aj_s_tmp & aj_char_tmp
End Select
End If
Next
CleanUpJSONstring = ""
aj_s_tmp = split(aj_s_tmp, Chr(13) & Chr(10))
For Each aj_line_tmp In aj_s_tmp
aj_line_tmp = replace(replace(aj_line_tmp, chr(10), ""), chr(13), "")
CleanUpJSONstring = CleanUpJSONstring & aj_Trim(aj_line_tmp) & Chr(13) & Chr(10)
Next
End Function
Private Function getJSONValue(ByVal val)
val = Trim(val)
If Left(val,1) = ":" Then val = Mid(val, 2)
If Right(val,1) = "," Then val = Left(val, Len(val) - 1)
val = Trim(val)
Select Case val
Case "true" : getJSONValue = True
Case "false" : getJSONValue = False
Case "null" : getJSONValue = Null
Case Else
If (Instr(val, """") = 0) Then
If IsNumeric(val) Then
getJSONValue = CDbl(val)
Else
getJSONValue = val
End If
Else
If Left(val,1) = """" Then val = Mid(val, 2)
If Right(val,1) = """" Then val = Left(val, Len(val) - 1)
getJSONValue = aj_JSONDecode(Trim(val))
End If
End Select
End Function
Private JSONoutput_level
Public Function JSONoutput()
dim wrap_dicttype, aj_label
JSONoutput_level = 1
wrap_dicttype = "[]"
For Each aj_label In data
If Not aj_IsInt(aj_label) Then wrap_dicttype = "{}"
Next
JSONoutput = Left(wrap_dicttype, 1) & Chr(13) & Chr(10) & GetDict(data) & Right(wrap_dicttype, 1)
End Function
Private Function GetDict(objDict)
dim aj_item, aj_keyvals, aj_label, aj_dicttype
For Each aj_item In objDict
Select Case TypeName(objDict.Item(aj_item))
Case "Dictionary"
GetDict = GetDict & Space(JSONoutput_level * 4)
aj_dicttype = "[]"
For Each aj_label In objDict.Item(aj_item).Keys
If Not aj_IsInt(aj_label) Then aj_dicttype = "{}"
Next
If aj_IsInt(aj_item) Then
GetDict = GetDict & (Left(aj_dicttype,1) & Chr(13) & Chr(10))
Else
GetDict = GetDict & ("""" & aj_JSONEncode(aj_item) & """" & ": " & Left(aj_dicttype,1) & Chr(13) & Chr(10))
End If
JSONoutput_level = JSONoutput_level + 1
aj_keyvals = objDict.Keys
GetDict = GetDict & (GetSubDict(objDict.Item(aj_item)) & Space(JSONoutput_level * 4) & Right(aj_dicttype,1) & aj_InlineIf(aj_item = aj_keyvals(objDict.Count - 1),"" , ",") & Chr(13) & Chr(10))
Case Else
aj_keyvals = objDict.Keys
GetDict = GetDict & (Space(JSONoutput_level * 4) & aj_InlineIf(aj_IsInt(aj_item), "", """" & aj_JSONEncode(aj_item) & """: ") & WriteValue(objDict.Item(aj_item)) & aj_InlineIf(aj_item = aj_keyvals(objDict.Count - 1),"" , ",") & Chr(13) & Chr(10))
End Select
Next
End Function
Private Function aj_IsInt(val)
aj_IsInt = (TypeName(val) = "Integer" Or TypeName(val) = "Long")
End Function
Private Function GetSubDict(objSubDict)
GetSubDict = GetDict(objSubDict)
JSONoutput_level= JSONoutput_level -1
End Function
Private Function WriteValue(ByVal val)
Select Case TypeName(val)
Case "Double", "Integer", "Long": WriteValue = val
Case "Null" : WriteValue = "null"
Case "Boolean" : WriteValue = aj_InlineIf(val, "true", "false")
Case Else : WriteValue = """" & aj_JSONEncode(val) & """"
End Select
End Function
Private Function aj_JSONEncode(ByVal val)
val = Replace(val, "\", "\\")
val = Replace(val, """", "\""")
'val = Replace(val, "/", "\/")
val = Replace(val, Chr(8), "\b")
val = Replace(val, Chr(12), "\f")
val = Replace(val, Chr(10), "\n")
val = Replace(val, Chr(13), "\r")
val = Replace(val, Chr(9), "\t")
aj_JSONEncode = Trim(val)
End Function
Private Function aj_JSONDecode(ByVal val)
val = Replace(val, "\""", """")
val = Replace(val, "\\", "\")
val = Replace(val, "\/", "/")
val = Replace(val, "\b", Chr(8))
val = Replace(val, "\f", Chr(12))
val = Replace(val, "\n", Chr(10))
val = Replace(val, "\r", Chr(13))
val = Replace(val, "\t", Chr(9))
aj_JSONDecode = Trim(val)
End Function
Private Function aj_InlineIf(condition, returntrue, returnfalse)
If condition Then aj_InlineIf = returntrue Else aj_InlineIf = returnfalse
End Function
Private Function aj_Strip(ByVal val, stripper)
If Left(val, 1) = stripper Then val = Mid(val, 2)
If Right(val, 1) = stripper Then val = Left(val, Len(val) - 1)
aj_Strip = val
End Function
Private Function aj_MultilineTrim(TextData)
aj_MultilineTrim = aj_RegExp.Replace(TextData, "$1")
End Function
private function aj_Trim(val)
aj_Trim = Trim(val)
Do While Left(aj_Trim, 1) = Chr(9) : aj_Trim = Mid(aj_Trim, 2) : Loop
Do While Right(aj_Trim, 1) = Chr(9) : aj_Trim = Left(aj_Trim, Len(aj_Trim) - 1) : Loop
aj_Trim = Trim(aj_Trim)
end function
End Class
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