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Replace paragraphs in TextArea with double line break?
Posted on 2008-10-12
I have a function, gleaned from an earlier ExEx thread, that takes html code from a database and shows it in plain-text format in a textarea.
Everything is working fine, except I want to have new paragraphs in the html replaced by *double* line returns in my text version .
I've spent forever trying various character combinations, and I can't get double-spacing to take hold.
Here is the function
function htmlToText(theHtml)
{ newP = chr(10) & chr(13) & chr(10) & chr(13);
theText = REReplaceNoCase(theHTML,"<
theText = REReplaceNoCase(theText,"<
theText = REReplaceNoCase(theText,"<
return theText;
}
As you can see I am trying to force a double line break, but the textarea still interprets this as a single line return.
If I insert any character between the two line returns, it gives me a new line, with the character, then another new line, as it should.
{ newP = chr(10) & chr(13) & '.' & chr(10) & chr(13);
but if I just have the two sets of line return characters, I only get one new line.
how can I force a double line replacement in my textarea?
I tried using a whitespace character like a 'space' between the lines, but that doesn't do anything, that i can tell.
Everything is working fine, except I want to have new paragraphs in the html replaced by *double* line returns in my text version .
I've spent forever trying various character combinations, and I can't get double-spacing to take hold.
Here is the function
function htmlToText(theHtml)
{ newP = chr(10) & chr(13) & chr(10) & chr(13);
theText = REReplaceNoCase(theHTML,"<
theText = REReplaceNoCase(theText,"<
theText = REReplaceNoCase(theText,"<
return theText;
}
As you can see I am trying to force a double line break, but the textarea still interprets this as a single line return.
If I insert any character between the two line returns, it gives me a new line, with the character, then another new line, as it should.
{ newP = chr(10) & chr(13) & '.' & chr(10) & chr(13);
but if I just have the two sets of line return characters, I only get one new line.
how can I force a double line replacement in my textarea?
I tried using a whitespace character like a 'space' between the lines, but that doesn't do anything, that i can tell.
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3 Comments
boy do i feel dumb. Turns out another function, which I have in place to remove whitespace from my code before outputting to the browser, is responsible for stripping out the double line breaks. Bypassing the function gives me what I have been looking for, using the original code I posted.
your answer is correct but so is what i started with!
Maybe I can change the course of this just a little?
I'd like to modify my html compress function to ignore any code between <pre> and </pre>
(For the most part I run this with the level set to "2" - using "1" gives the same result as far (as double line spacing is concerned.)
I am not a regex wiz.
How can I modify this code so that before doing anything else it will ignore any content between the tags <pre> and </pre> ?
your answer is correct but so is what i started with!
Maybe I can change the course of this just a little?
I'd like to modify my html compress function to ignore any code between <pre> and </pre>
(For the most part I run this with the level set to "2" - using "1" gives the same result as far (as double line spacing is concerned.)
I am not a regex wiz.
How can I modify this code so that before doing anything else it will ignore any content between the tags <pre> and </pre> ?
<!--- htmlCompress cf function --->
<cfscript>
/**
* Replaces a huge amount of unnecessary whitespace from your HTML code.
* @param sInput HTML you wish to compress. (Required)
* @return Returns a string.
* @author Jordan Clark (JordanClark@Telus.net)
*/
function HtmlCompressFormat(sInput)
{
var level = 2;
if( arrayLen( arguments ) GTE 2 AND isNumeric(arguments[2]))
{
level = arguments[2];
}
// just take off the useless stuff
sInput = trim(sInput);
switch(level)
{
case "3":
{
// extra compression can screw up a few little pieces of HTML, doh
sInput = reReplace( sInput, "[[:space:]]{2,}", " ", "all" );
sInput = replace( sInput, "> <", "><", "all" );
sInput = reReplace( sInput, "<!--[^>]+>", "", "all" );
break;
}
case "2":
{
sInput = reReplace( sInput, "[[:space:]]{2,}", chr( 13 ), "all" );
break;
}
case "1":
{
// only compresses after a line break
sInput = reReplace( sInput, "(" & chr( 10 ) & "|" & chr( 13 ) & ")+[[:space:]]{2,}", chr( 13 ), "all" );
break;
}
}
return sInput;
}
</cfscript>
** CORRECTION **
I just started playing with that function above.
Using the (1) setting for the replacement level made no difference...
UNTIL I replaced my code with Zvonko's.
Why is
{ newP = chr(13) & chr(13);
different than
{ newP = chr(13) & chr(10) & chr(13) & chr(10);
?
I will accept points on the original question. If you have a quick answer for the functin above, great, if not I will post as new question when I need it. For now I can use the (1) method on pages that need lighter compression (skipping the function altogether caused me a different set of problems)
thank you zvonko!
I just started playing with that function above.
Using the (1) setting for the replacement level made no difference...
UNTIL I replaced my code with Zvonko's.
Why is
{ newP = chr(13) & chr(13);
different than
{ newP = chr(13) & chr(10) & chr(13) & chr(10);
?
I will accept points on the original question. If you have a quick answer for the functin above, great, if not I will post as new question when I need it. For now I can use the (1) method on pages that need lighter compression (skipping the function altogether caused me a different set of problems)
thank you zvonko!
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