探讨请教asp模板问题
sdts 2005-08-23 05:12:53 这两天看了一下asp的模板类,稍微有些了解,我参看的是kktTemplate,处理了变量替换和块替换(处理循环),我想问一下,除了这些情况,还有其他的情况吗?
请问动网论坛的模板是用什么实现的?
在网上搜索一下,看见一些说法是asp的模板效率比较低,处理起比较多的内容时就会比较慢,有就是说asp模板的效用怎么样?
====附模板类==============================================================
<%
'=======================================================================
' CLASS NAME: kktTemplate ASP页面模板对象
' DESIGN BY : 彭国辉
' DATE: 2004-07-05
' WEBSITE: http://kacarton.yeah.net/
' EMAIL: kacarton@sohu.com
'
' 本对象中使用了set_var、set_block等命名方法是为了兼容phplib
'=======================================================================
Class kktTemplate
Private m_FileName, m_Root, m_Unknowns, m_LastError, m_HaltOnErr
Private m_ValueList, m_BlockList
Private m_RegExp
' 构造函数
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
' 析构函数
Private Sub Class_Terminate
Set m_RegExp = Nothing
Set m_BlockMatches = Nothing
Set m_ValueMatches = nothing
End Sub
Public Property Get ClassName()
ClassName = "kktTemplate"
End Property
Public Property Get Version()
Version = "1.0"
End Property
Public Sub About()
Response.Write("kktTemplate ASP页面模板类<br>" & vbCrLf &_
"程序设计:彭国辉 2004-07-05<br>" & vbCrLf &_
"个人网站:<a href='http://kacarton.yeah.net'>http://kacarton.yeah.net</a><br>" & vbCrLf &_
"电子邮件:<a href='mailto:kacarton@sohu.com'>kacarton@sohu.com</a><br>")
End Sub
'检查目录是否存在
Public Function FolderExist(ByVal path)
Dim fso
Set fso = CreateObject("Scripting.FileSystemObject")
FolderExist = fso.FolderExists(Server.MapPath(path))
Set fso = Nothing
End Function
'读取文件内容
Private Function LoadFile()
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 fso = CreateObject("Scripting.FileSystemObject")
If Not fso.FileExists(Filename) Then ShowError("模板文件" & m_FileName & "不存在!")
set hndFile = fso.OpenTextFile(Filename)
LoadFile = hndFile.ReadAll
Set hndFile = Nothing
Set fso = Nothing
If LoadFile = "" Then ShowError("不能读取模板文件" & m_FileName & "或文件为空!")
End Function
'处理错误信息
Private Sub ShowError(ByVal msg)
m_LastError = msg
Response.Write "<font color=red style='font-size;14px'><b>模板错误:" & msg & "</b></font><br>"
If m_HaltOnErr Then Response.End
End Sub
'设置模板文件默认目录
'Ex: kktTemplate.set_root("/tmplate")
' kktTemplate.Root = "/tmplate"
' root = kktTemplate.get_root()
' root = kktTemplate.Root
'使用类似set_root这样的命名方法是为了兼容phplib,以下将不再重复说明
Public Sub set_root(ByVal Value)
If Not FolderExist(Value) Then ShowError(Value & "不是有效目录或目录不存在!")
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
'设置模板文件
'Ex: kktTemplate.set_file("hndTpl", "index.htm")
'本类不支持多模板文件,handle为兼容phplib而保留
Public Sub set_file(ByVal handle,ByVal filename)
m_FileName = filename
m_BlockList.Add Handle, LoadFile()
End Sub
Public Function get_file()
get_file = m_FileName
End Function
' Public Property Let File(handle, filename)
' set_file handle, filename
' End Property
' Public Property Get File()
' File = m_FileName
' End Property
'设置对未指定的标记的处理方式,有keep、remove、comment三种
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+-->([\s\S.]*)<!--\s+END " & BlockTag & "\s+-->"
If Not m_BlockList.Exists(Parent) Then ShowError("未指定的块标记" & 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("未指定的 块标记" & 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 = "\{[^ \t\r\n}]+\}"
finish = m_RegExp.Replace(content, "")
Case "comment"
m_RegExp.Pattern = "\{([^ \t\r\n}]+)\}"
finish = m_RegExp.Replace(content, "<!-- Template Variable $1 undefined -->")
Case Else finish = content
End Select
End Function
Public Sub p(ByVal Name)
If Not m_ValueList.Exists(Name) Then ShowError("不存在的标记" & Name)
Response.Write(finish(m_ValueList.Item(Name)))
End Sub
End Class
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