使用正则表达式实现模式图片新闻.ASP-ASP教程,ASP应用

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使用正则表达式实现模式图片新闻.ASP

作者：未知

日期：2005-03-22

人气：

投稿：snow(转贴)

来源：未知

字体：大中小

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以下正文：

'文字或特定图片模式显示新闻

function shownew(content,ntype)

shownew = ""

if(ntype = 1) then

shownew = shownew &" <TABLE width=100% >"
shownew = shownew &"<TR>"
shownew = shownew &" <TD width=600 style='word-break:break-all' valign=top>"&ShowPic(content)&"</TD>"
shownew = shownew &"</TR>"
shownew = shownew &"<TR>"
shownew = shownew &" <TD valign=top style='word-break:break-all'>"&OnlyWord(content)&"</TD>"
shownew = shownew &"</TR>"
shownew = shownew &"</TABLE>"

elseif (ntype = 2) then

shownew = shownew &" <TABLE width='100%'>"

shownew = shownew &"<TR>"
shownew = shownew &" <TD style='word-break:break-all' valign=top>"&OnlyWord(content)&"</TD>"
shownew = shownew &"</TR>"
shownew = shownew &"<TR>"
shownew = shownew &" <TD width=600 valign=top style='word-break:break-all'>"&ShowPic(content)&"</TD>"
shownew = shownew &"</TR>"
shownew = shownew &"</TABLE>"

elseif (ntype = 3) then

shownew = shownew &"<TABLE>"

shownew = shownew &"<TR>"
shownew = shownew &"<TD width=100 valign=top>"&ShowPic(content)&"</TD>"

shownew = shownew &"<TD width=80% style='word-break:break-all' valign=top>"&OnlyWord(content)&"</TD>"

shownew = shownew &"</TR>"
shownew = shownew &"</TABLE>"

elseif (ntype = 4) then

shownew = shownew &"<TABLE>"

shownew = shownew &"<TR>"

shownew = shownew &"<TD width=80% valign=top style='word-break:break-all'>"&OnlyWord(content)&"</TD>"
shownew = shownew &"<TD width=100 valign=top>"&ShowPic(content)&"</TD>"

shownew = shownew &"</TR>"
shownew = shownew &"</TABLE>"
else
shownew = shownew & "<table><tr><td style='word-break:break-all'>"&content&"</td></tr></table>"
end if

end function

'显示提取的图片
function ShowPic(strng)

ShowPic = ""
ImageUrl= RegExpExecute(strng)

ImageUrls = Split(ImageUrl,"<BR>")

for i = LBound(ImageUrls) to (UBound(ImageUrls) - 1)

ShowPic = ShowPic & ("<a href='"&ImageUrls(i)&"' target=_blank><image src='"&ImageUrls(i)&"' border='0' alt='按此在新窗口浏览图片' onload='javascript:if(this.width>180)this.width=180'></a>")

next

end function

'从内容中提取图片
Function RegExpExecute(strng)
Dim regEx, Match, Matches '建立变量。
Set regEx = New RegExp '建立正则表达式。
regEx.Pattern = "(src=)('|"&CHR(34)&"| )?(.[^'|\s|"&CHR(34)&"]*)(\.)(jpg|gif|png|bmp|jpeg)('|"&CHR(34)&"|\s|>)?" '设置模式。
' regEx.Pattern = "(src=)('|"&CHR(34)&"| )?(.[^'| |"&CHR(34)&"]*)(\.)(jpg|gif|png|bmp|jpeg)('|"&CHR(34)&"| |>)?" '设置模式。
'regEx.Pattern = "(s|S)(r|R)(c|C)=('|"+CHR(34)+")(\w|\\|\/|\.)+('|"+CHR(34)+"| *|>)?" '设置模式。
regEx.IgnoreCase = true '设置是否区分字符大小写。
regEx.Global = True '设置全局可用性。
Set Matches = regEx.Execute(strng) '执行搜索。
For Each Match in Matches '遍历匹配集合。
values=values&Match.SubMatches(2)&Match.SubMatches(3)&Match.SubMatches(4)&"<BR>"
Next
RegExpExecute = values
End Function

'删除内容中与图片有关的代码
function OnlyWord(strng)
Set re=new RegExp
re.IgnoreCase =True
re.Global=True

re.Pattern = "(<)(.[^<]*)(src=)('|"&CHR(34)&"| )?(.[^'|\s|"&CHR(34)&"]*)(\.)(jpg|gif|png|bmp|jpeg)('|"&CHR(34)&"|\s|>)(.[^>]*)(>)" '设置模式。
OnlyWord=re.Replace(strng,"")
Set re= nothing

end function

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