ASP模板类代码

2015-08-12 16:02:07来源:作者:人点击

 Class Template

Private m_FileName, m_Root, m_Unknowns, m_LastError, m_HaltOnErr
Private m_ValueList, m_BlockList
Private m_RegExp
Private Sub Class_Initialize
Set m_ValueList = CreateObject("Scripting.Dictionary")
Set m_BlockList = CreateObject("Scripting.Dictionary")
set m_RegExp = New RegExp
m_RegExp.IgnoreCase = True
m_RegExp.Global = True
m_FileName = ""
m_Root = "."
m_Unknowns = "remove"
m_LastError = ""
m_HaltOnErr = true
End Sub

Private Sub Class_Terminate
Set m_RegExp = Nothing
Set m_BlockMatches = Nothing
Set m_ValueMatches = nothing
End Sub

Public Property Get ClassName()
ClassName = "Template"
End Property

Public Property Get Version()
Version = "1.0"
End Property
Private Function LoadFile(ByVal chartype)
Dim Filename, fso, hndFile
Filename = m_Root
If Right(Filename, 1)<>"/" And Right(Filename, 1)<>"" Then Filename = Filename & "/"
Filename = Server.MapPath(Filename & m_FileName)
Set StreamObject = Server.CreateObject("Adodb.Stream")
StreamObject.Type = 1
StreamObject.Mode = 3
StreamObject.Open
StreamObject.Position = 0
StreamObject.LoadFromFile Filename
StreamObject.Position = 0
StreamObject.Type = 2
StreamObject.CharSet = chartype
LoadFile = StreamObject.readtext()
If LoadFile = "" Then ShowError("0x11<br>Could Not Load The File " & m_FileName & "!")
End Function

Private Sub ShowError(ByVal msg)
m_LastError = msg
Response.Write "<span style=""font-size:12px;color:red"">Error ID : " & msg & "</span>"
If m_HaltOnErr Then Response.End
End Sub

Public Sub set_root(ByVal Value)
m_Root = Value
End Sub
Public Function get_root()
get_root = m_Root
End Function
Public Property Let Root(ByVal Value)
set_root(Value)
End Property
Public Property Get Root()
Root = m_Root
End Property

Public Sub set_file(ByVal handle,ByVal filename,ByVal chartype)
m_FileName = filename
m_BlockList.Add Handle, LoadFile(chartype)
End Sub
Public Function get_file()
get_file = m_FileName
End Function
Public Sub set_unknowns(ByVal unknowns)
m_Unknowns = unknowns
End Sub
Public Function get_unknowns()
get_unknowns = m_Unknowns
End Function
Public Property Let Unknowns(ByVal unknown)
m_Unknowns = unknown
End Property
Public Property Get Unknowns()
Unknowns = m_Unknowns
End Property

Public Sub set_block(ByVal Parent, ByVal BlockTag, ByVal Name)
Dim Matches
m_RegExp.Pattern = "<!--s+BEGIN " & BlockTag & "s+-->([sS.]*)<!--s+END " & BlockTag & "s+-->"
If Not m_BlockList.Exists(Parent) Then ShowError("0x12<br>Undefined Block Tag " & Parent & "!")
set Matches = m_RegExp.Execute(m_BlockList.Item(Parent))
For Each Match In Matches
m_BlockList.Add BlockTag, Match.SubMatches(0)
m_BlockList.Item(Parent) = Replace(m_BlockList.Item(Parent), Match.Value, "{" & Name & "}")
Next
set Matches = nothing
End Sub

Public Sub set_var(ByVal Name, ByVal Value, ByVal AppEnd)
Dim Val
If IsNull(Value) Then Val = "" Else Val = Value
If m_ValueList.Exists(Name) Then
If AppEnd Then m_ValueList.Item(Name) = m_ValueList.Item(Name) & Val _
Else m_ValueList.Item(Name) = Val
Else
m_ValueList.Add Name, Value
End If
End Sub

Public Sub unset_var(ByVal Name)
If m_ValueList.Exists(Name) Then m_ValueList.Remove(Name)
End Sub

Private Function InstanceValue(ByVal BlockTag)
Dim keys, i
InstanceValue = m_BlockList.Item(BlockTag)
keys = m_ValueList.Keys
For i=0 To m_ValueList.Count-1
InstanceValue = Replace(InstanceValue, "{" & keys(i) & "}", m_ValueList.Item(keys(i)))
Next
End Function

Public Sub parse(ByVal Name, ByVal BlockTag, ByVal AppEnd)
If Not m_BlockList.Exists(BlockTag) Then ShowError("0x12<br>Undefined Block Tag " & Parent & "!")
If m_ValueList.Exists(Name) Then
If AppEnd Then m_ValueList.Item(Name) = m_ValueList.Item(Name) & InstanceValue(BlockTag) _
Else m_ValueList.Item(Name) = InstanceValue(BlockTag)
Else
m_ValueList.Add Name, InstanceValue(BlockTag)
End If
End Sub

Private Function finish(ByVal content)
Select Case m_Unknowns
Case "keep" finish = content
Case "remove"
m_RegExp.Pattern = "{[^ trn}]+}"
finish = m_RegExp.Replace(content, "")
Case "comment"
m_RegExp.Pattern = "{([^ trn}]+)}"
finish = m_RegExp.Replace(content, "<!-- Template Variable $1 Undefined -->")
Case Else finish = content
End Select
End Function

Public Sub output(ByVal Name)
If Not m_ValueList.Exists(Name) Then ShowError("0x13<br>Could Not Find Tag " & Name & "!")
Response.Write(finish(m_ValueList.Item(Name)))
End Sub
End Class

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