[groovy-user] MarkupBuilder: converting newline to br tag

[MichaelM]

I have a string with embedded newlines that I want to display in a HTML page
using the markup builder.
For the newlines to display, they will have to be converted into <br>.

This does not work:
description = """line 1
line 2"""
// Display in table cell
td(iss.description.replaceAll("\n", "<br>"))

The br angled brackets are escaped (as one would expect).
So how can I get it to convert?
--
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[Mick Knutson]

builder.yieldUnescaped(...)

or

mkp.yieldUnescaped(...)

---
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[Tim Yates]

But if you've got any nasty script tags or anything in the markup you're sending out enescaped, you could be in bother...

Wouldn't a <pre> tag or something inside the <td> handle newlines as they are?

Tim

[MichaelM]

mkp.yieldUnescaped(...) does indeed also prevent characters like < and > to
be escaped.

The pre tag does work to display the newlines, but it has the drawback that
paragraphs of text are not wrapped inside a table cell. The table simply
becomes very very wide.

So still searching for a better option.
Perhaps escape the string first, then perform the replaceAll for the
newlines, and then render unescaped? How do I escape the string?

Tim Yates wrote:
>
> But if you've got any nasty script tags or anything in the markup you're
> sending out enescaped, you could be in bother...
>
> Wouldn't a <pre> tag or something inside the <td> handle newlines as they
> are?
>
> Tim
>
> On Thu, May 6, 2010 at 3:13 PM, Mick Knutson <mknu...@baselogic.com>
> wrote:
>
>> builder.yieldUnescaped(...)
>>
>> or
>>
>> mkp.yieldUnescaped(...)
>>
>> ---
>> Thank You…
>>
>> Mick Knutson, President
>>
>>
>>

>> On Thu, May 6, 2010 at 10:06 AM, MichaelM
>> <nabb...@mail21.e4ward.com>wrote:
>>
>>>
>>> I have a string with embedded newlines that I want to display in a HTML
>>> page
>>> using the markup builder.
>>> For the newlines to display, they will have to be converted into <br>.
>>>
>>> This does not work:
>>> description = """line 1
>>> line 2"""
>>> // Display in table cell
>>> td(iss.description.replaceAll("\n", "<br>"))
>>>
>>> The br angled brackets are escaped (as one would expect).
>>> So how can I get it to convert?
>>> --
>>> View this message in context:
>>> http://old.nabble.com/MarkupBuilder%3A-converting-newline-to-br-tag-tp28474120p28474120.html
>>
>
>

--

View this message in context: http://old.nabble.com/MarkupBuilder%3A-converting-newline-to-br-tag-tp28474120p28475201.html

[Tim Yates]

Found a stackoverflow Q which may have the CSS to help:

http://stackoverflow.com/questions/642140/retain-newlines-in-html-but-wrap-text-possible

pre {
  word-wrap: break-word; /* IE>=5.5 */


  white-space: pre; /* IE>=6 */


  white-space: -moz-pre-wrap; /* For Fx<=2 */


  white-space: pre-wrap; /* Fx>3, Opera>8, Safari>3*/


}

Tim

[Paul King]

This might be what you are after:

iss.description.readLines().each {
mkp.yield it
mkp.yieldUnescaped '<br>'
}

give or take a bit of first/last line processing.

Cheers, Paul.

[MichaelM]

This works perfectly. Thanks!

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