[libxml++] Re: Formatting problem

[Christophe de V. <cde...@ne...>]

Bastian_Pfennigschmidt/CODESCO/DE...@co... a =E9crit :

>
> Hello Christophe,
>

Hi Bastian,

<snip>

> Why the parser doesn't remove the formatting linebreaks and spaces, if=20
> I parse it again?
> If I call write_to_xxx I don't want to get a formatted output, even if=20
> the input was formatted.
> Is there any way to get a unformatted output if the input was formatted=
?
>

Removing formatting linebreaks and spaces at parsing time imply a=20
decision on wether or not a whitespace is significant (See=20
http://www.xmlsoft.org/html/libxml-parser.html#xmlKeepBlanksDefault for=20
more information about it).

However if you are able to decide if a whitespace is significant or not,=20
then you can walk your dom tree and remove them. This shouldn't be hard=20
to implement : you just have to remove all content nodes that are white=20
space (see bool ContentNode::is_white_space=20
<http://libxmlplusplus.sourceforge.net/reference/html/classxmlpp_1_1Conte=
ntNode.html#a4>=20
() const).

There is another possibility, which is to change the behavior of=20
libxml++ regarding whitespaces by changing KeepBlanks::Default to false.=20
But this solution will be heavy to maintain for you.
Eventually we can think about a little modification in the next API to=20
allow a dynamic change of this setting, but we'll have to convince=20
Murray :-).

>
> Thanks for helping


You're welcome,

Christophe