Re: [libxml++] writing formatted (indented) files

[Christophe de VIENNE <cdevienne alphacent com>]

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Le Vendredi 16 Mai 2003 11:22, Murray Cumming Comneon com a écrit :
> > Anyway we need to remove the calls to xmlKeepBlanksDefault()
> > we actually do.
>
> No, I think we probably need to ensure that the default is in effect,
> restoring the existing setting afterwards. People may be using libxml
> directly and that should not interfere with libxml++ or vice-versa. I think
> I have done that in most places, and meant to do it in all places.

On this point something is strange on libxml2 side.

calling xmlKeepBlanksDefault( xmlKeepBlanksDefault(0) ) should, in my opinion, 
be like a no-op. It is not !
Digging a bit in libxml source code it appeared that after a call to 
xmlKeepBlanksDefault(),  xmlIndentTreeOutput == ! xmlKeepBlanksDefaultValue
But default value of both variable is 1.

Unless it is inconsistent behavior into libxml2, we can't assume that save and 
restore the right value is like doing nothing :-(

We could workaround this for the parser by using the parsing context field 
'keepBlank' and sax->ignorableWhitespace I guess, but for output it is not 
the possible, since the global value are used.

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