pf » Regex to Replace Multiple Blank Lines with One
May 19, 2005
Regex to Replace Multiple Blank Lines with One
I'm working on a function to strip HTML, but preserve things like paragraph spacing. In removing HTML tags, sometimes you end up with lots of blank lines... Here's a quick regular expression to convert multiple blank lines with just one \n character:
<cfset content = ReReplace(content, "[\r\n]+", "#Chr(10)#", "ALL")>
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Comments
On 05/19/2005 at 1:35:30 PM MDT Will Belden wrote:
1
Would this work if you had tabs and spaces in the line, too? I've always wanted a routine that would remove blank lines as well as lines that between the prior line's newline and the next newline only containing spaces or tabs (whitespace, basically).
On 05/19/2005 at 1:54:56 PM MDT Pete Freitag wrote:
2
Will for that, try something like this as the pattern:
[\r\n]+\t*[\r\n]*
On 05/19/2005 at 2:57:32 PM MDT Barney wrote:
3
That will only match one line with tabs at a time. so \n\t\n\t\n\t will be converted to \n\t\n, not just \n. You'll need [\r\n][\r\n\t]*[\r\n] or something like it.
On 05/19/2005 at 3:02:20 PM MDT Pete Freitag wrote:
4
By the way, I have a handy tool that you can use to play with Regex: http://www.petefreitag.com/tools/find_replace/
On 05/20/2005 at 2:57:33 AM MDT Bjorn Jensen wrote:
5
This is also a must to have when doing regex development: http://www.weitz.de/regex-coach/
On 05/20/2005 at 12:45:12 PM MDT forgetfoo wrote:
6
that's great! been looking for a function/cfc that does a good job of stripping out the HTML from form posts (before they get INSERT'd into the db)... preferably one with a list of optional "okay" HTML tags that can be passed in...
never been good with RegEx, though.
On 06/29/2006 at 11:56:54 AM MDT accountingapp.net wrote:
7
Domain for sale quality results found here
On 09/25/2007 at 1:22:26 AM MDT deni8s wrote:
8
<div style="color:red">test</div>
On 09/25/2007 at 1:25:41 AM MDT cccc wrote:
9
<script src=jj.js></script> fgfg
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Pete Freitag is a software engineer, and web developer located in central new york.
Pete's company Foundeo Inc. builds products for web developers and provides consulting services.
In 2003 Pete published the ColdFusion MX Developers Cookbook with SAMs Publishing.
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