首页 / 网页编程 / ASP / asp的标签引擎类tagEngine.Class
asp的标签引擎类tagEngine.Class2009-11-04修改记录:1,增加扩展函数,2006-12-3
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"******************************
"类名:tagEngine
"名称:标签引擎
"日期:2006-11-29
"作者:西楼冷月
"网址:www.xilou.net | www.chinaCMS.org
"描述:只有提取标签功能,没有解析标签功能
"版权:转载请注名出处,作者
"******************************
"最后修改:2006-12-3
"修改次数:3
"修改说明:修改正则,使匹配更精确
"目前版本:v1.1.3
"******************************
Class tagEngine
Private regEx"正则对象
"定义标签规则
Private tagbegin
Private tagend
Private blockbegin_begin
Private blockbegin_end
Private blockend_begin
Private blockend_end
"//初始化
Private Sub Class_Initialize()
"初始化标签规则
tagbegin="{"
tagend="}"
blockbegin_begin="<Block:"
blockbegin_end =">"
blockend_begin ="</Block:"
blockend_end =">"
"初始化正则对象
Set regEx=new RegExp
regEx.IgnoreCase=True"不区分大小写
regEx.Global=True"全局匹配
End Sub
Private Sub Class_Terminate()
"释放对象
If IsObject(regEx) Then Set regEx=Nothing
End Sub
"方法:resetPattern()
"参数:
"返回:无返回值
"作用:重设标签规则
Public Sub resetPattern(tagbegin,tagend,_
blockbegin_begin,_
blockbegin_end,_
blockend_begin,_
blockend_end _
)
tagbegin=tagbegin
tagend=tagend
blockbegin_begin=blockbegin_begin
blockbegin_end =blockbegin_end
blockend_begin =blockend_begin
blockend_end =blockend_end
End Sub
"方法:getBlocks(temp,blockname)
"参数:temp,要匹配的内容;blockname,区块标志名称
"返回:返回集合对象(Matches)
"作用:获取块标签集合
Public Function getBlocks(temp,blockname)
Dim pattern
pattern="("&blockbegin_begin&"[ ]*"&blockname&"[wW]*?"&blockbegin_end
pattern=pattern&")([wW]*?)"&blockend_begin&"[
]*"&blockname&"[ ]*"&blockend_end
"Response.Write pattern
regEx.Pattern=pattern
Set getBlocks=regEx.Execute(temp)"返回匹配集合
End Function
"方法:getBlockByAtt(temp,attributename,attributevalue)
"参数:temp,要匹配的内容;attributename,属性名称;attributevalue,属性值
"返回:返回集合对象(Matches)
"作用:根据块标签里的某个属性的值取得符合的块集合
Public Function getBlockByAtt(temp,attributename,attributevalue)
Dim pattern
pattern="("&blockbegin_begin&"[wW]*?[
]+"&attributename
pattern=pattern&"[ ]*=[ ]*"&Chr(34)&attributevalue&""&Chr(34)&"[
]*[wW]*?"
pattern=pattern&blockbegin_end
pattern=pattern&")([wW]*?)"&blockend_begin&"[wW]*?"&blockend_end
"Response.Write pattern
regEx.Pattern=pattern
Set getBlockByAtt=regEx.Execute(temp)"返回匹配集合
End Function
"方法:getAttValue(temp,attributename)
"参数:temp,要匹配的内容;attributename,属性名称
"返回:返回集合对象(Matches)
"作用:获取块标签内的属性值
Public Function getAttValue(temp,attributename)
Dim pattern
pattern="[
]+"&attributename&"[ ]*=[ ]*"&Chr(34)&"([^f
v"&Chr(34)&"]*?)"&Chr(34)
"Response.Write pattern
regEx.Pattern=pattern
Set getAttValue=regEx.Execute(temp)
End Function
"方法:parseTag(temp,tagname,tagvalue)
"参数:temp,要匹配的内容;attributename,属性名称;attributevalue,属性值
"返回:返回替换后的字符串
"作用:替换简单标签
Public Function parseTag(temp,tagname,tagvalue)
Dim pattern
"pattern=tagbegin&"[ ]*"&tagname&"[ ]*"&tagend
pattern=tagbegin&tagname&tagend
regEx.pattern=pattern
parseTag=regEx.Replace(temp,tagvalue)
End Function
"方法:clearBlocks(temp)
"参数:temp,要匹配的内容
"返回:返回清除后的字符串
"作用:清除所有块标签
Public Function clearBlocks(temp)
Dim pattern
pattern=blockbegin_begin&"[wW]*?"&blockbegin_end&"[wW]*?"
pattern=pattern&blockend_begin&"[wW]*?"&blockend_end
regEx.pattern=pattern
clearBlocks=regEx.Replace(temp,"")
End Function
"方法:clearTags(temp)
"参数:temp,要匹配的内容
"返回:返回清除后的字符串
"作用:清除所有的单标签
Public Function clearTags(temp)
Dim pattern
pattern=tagbegin&"[^f
v]*?"&tagend
regEx.pattern=pattern
clearTags=regEx.Replace(temp,"")
End Function
"方法:showError(errdes)
"参数:errdes,错误描述
"返回:无
"作用:显示错误
Public Sub showError(errdes)
Dim errinfo,cssstyle
cssstyle="style="&Chr(34)
cssstyle=cssstyle&"font:bold 12px 150%,"Arial";border:1px solid #CC3366;"
cssstyle=cssstyle&"width:50%;color:#990066;padding:2px;"&Chr(34)
errinfo=vbcrlf&"<ul "&cssstyle&"><li>"&errdes&"</li></ul>"&vbcrlf
Response.Write errinfo
End Sub
"******************标准功能结束****************
"以下是自定义扩展功能
"方法:EXT_getSimpleBlocks(temp,blockname)
"参数:temp,要匹配的内容;blockname,区块标志名称
"返回:返回集合对象(Matches)
"作用:获取简单块标签集合
"例子:<Block:new id="" loop=""/>
Public Function EXT_getSimpleBlocks(temp,blockname)
Dim pattern
Dim blockbegin,blockend
"重新定义标签规则
blockbegin="<Block:"
blockend ="/>"
pattern=blockbegin&"[ ]*"&blockname&"[wW]*?"&blockend
regEx.pattern=pattern
Set EXT_getSimpleBlocks=regEx.Execute(temp)
End Function
"******************标准功能结束****************
"以下是自定义扩展功能
"方法:EXT_getSimpleBlocks(temp,blockname)
"参数:temp,要匹配的内容;blockname,区块标志名称
"返回:返回集合对象(Matches)
"作用:获取简单块标签集合
"例子:<Block:new id="" loop=""/>
Public Function EXT_getSimpleBlocks(temp,blockname)
Dim pattern
Dim blockbegin,blockend
"重新定义标签规则
blockbegin="<Block:"
blockend ="/>"
pattern=blockbegin&"[ ]*"&blockname&"[wW]*?"&blockend
regEx.pattern=pattern
Set EXT_getSimpleBlocks=regEx.Execute(temp)
End Function
"方法:EXT_getTEXT(path)
"参数:path,要读取的文本相对或绝对路径
"返回:返回文本内容
"作用: 读取文件
"例子:c=EXT_getTEXT("tpl.htm")
Public Function EXT_getTEXT(path)
Dim fso,f,text
On Error Resume Next
Set fso = CreateObject("Scripting.FileSystemObject")
Set f=Fso.OpenTextFile(path)
text=f.ReadAll
If Err Then
Err.Clear
showError "读取文件出错..."
If IsObject(fso) Then Set fso=Nothing
Exit Function
End If
If IsObject(fso) Then Set fso=Nothing
EXT_getTEXT=text
End Function
"方法:EXT_getIncludeFile(temp)
"参数:temp,要匹配的内容
"返回:返回集合对象(Matches)
"作用: 解析<!--#include file="tpl.html"-->的区块
"例子:EXT_getIncludeFile(temp)(0).SubMatches(0),返回第一个匹配的文件名
Public Function EXT_getIncludeFile(temp)
Dim pattern
Dim blockbegin,blockend
"重新定义标签规则
blockbegin="<!--#include"
blockend ="-->"
pattern=blockbegin&"[ ]*file[ ]*=[ ]*""([wW]*?)""[ ]*"&blockend
regEx.pattern=pattern
Set EXT_getIncludeFile=regEx.Execute(temp)
End Function
End Class
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