Because of all the escaping problems, I think a separate action is the
best solution for this instead of trying to do some tricks with the
replace action. How about something like this:
<str:htmlEscape
[nls="true|false"]
[blanks="true|false"]
[tabs="true|false" [tabLength="noOfChars"]]>
text to be converted
</str:htmlEscape>
nls: replace all \n with <br>
blanks: replace multiple blanks with , but leave single
blanks alone
tabs: replace tabs with a number of
tabLength: how many characters a tab represents (default is 8)
The "blanks" and "tabs" replacements make it possible to handle simple
formatted (indented) text. Other replacements are possible, of course,
such as "*" to "<li>", but this is a start.
Hans
Henri Yandell wrote:
>
> On Tue, 17 Sep 2002, zze-JEANJEAN S ext FTRD/DMI/SOP wrote:
>
>
>>>>Is there a tag to convert \n to <br/> ??
>>>
>>>You should be able to use the String Taglib or the Regexp Taglib.
>>>
>>
>>The str:replace tag is not easy to use : in the replace propertie the \n
>>is not understood :(( You have to put in this propetie a real new line,
>>so the code is not really readable :(
>>For instance :
>>...
>><str:replace replace="
>>" with="<BR/>"><c:out
>>value="${requestScope[theKey].address1}"/></str:replace>
>>...
>
>
> Yeah. This needs to be solved doesn't it.
>
> Solutions:
>
> Make replace accept \n as being a newline. This would be doable, but what
> if someone wanted to replace a \n sequence? Is it acceptable to make
> 'tabs' illegal in the replace etc. Probably not.
>
> Add a replaceJava attribute, for specifying the replace tag as a Java
> attribute. Would want a withJava attribute too.
> Or maybe this is an encoding="java" attribute.
>
> Have a replaceNewline tag. A bit weak as you won't be able to replace
> something with a newline in. Also has weaknesses as I'm trying to collate
> similar functionality and not create more tags.
>
> ====
> I seem to recall that there are no XML character entities that work
> there, but possible I could make one work. Whether this would be
> cross-server though, I don't know.
>
> Most people will want \n to work I imagine, and won't care that they have
> to do \\n to replace a \ and a n. If I change it so that all
> String attributes get unescaped for Java entities, and maybe even all
> content as well. I wonder if this will hurt anything...
>
> If not, I'll aim for this feature to be in a 2.0 release. My apologies for
> not being able to get it in sooner.
>
> Hen
>
>
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