Escape xml with CFXMLCreateStringByEscapingEntities

[Claude Saelens]

Hello,

I need to put XML fragments into another XML. Each time an XML fragment is put 
into another XML it needs to be escaped to be send to backend a java 
application. I used the function "CFXMLCreateStringByEscapingEntities" but it 
seems it can only escape an XML fragment once, the second time strange 
characters are added.

For this is wrote following method:

-(NSMutableString*)xmlEscape:(NSMutableString*)xmlString
{
        NSMutableString *aNSString = [NSMutableString 
stringWithString:xmlString];
        CFStringRef aCFString;
        CFStringRef bCFString;
        aCFString = CFStringCreateWithCString(NULL, [aNSString UTF8String], 
NSUTF8StringEncoding);
        bCFString = CFXMLCreateStringByEscapingEntities(kCFAllocatorDefault, 
aCFString, NULL);

        NSMutableString *returnValue = [NSMutableString 
stringWithString:(NSMutableString*)bCFString];
        
        CFRelease(aCFString);
        CFRelease(bCFString);
        
        return returnValue;
}

The result is as follow:

First fragment:

<item type="Struct">
<item name="path">Links/lets&dance.jpg</item>
<item name="spread_index">0</item>
</item>
<item type="Struct">
<item name="path">Links/doubles_1/lets&dance.jpg</item>
<item name="spread_index">0</item>
</item>

Escaping this and put in a second fragment gives:

<item type="Struct">
<item name="level_id">4_2</item>
<item name="images" type="Array">&lt;item type=&quot;Struct&quot;&gt;
&lt;item name=&quot;path&quot;&gt;Links/lets&amp;dance.jpg&lt;/item&gt;
&lt;item name=&quot;spread_index&quot;&gt;0&lt;/item&gt;
&lt;/item&gt;
&lt;item type=&quot;Struct&quot;&gt;
&lt;item 
name=&quot;path&quot;&gt;Links/doubles_1/lets&amp;dance.jpg&lt;/item&gt;
&lt;item name=&quot;spread_index&quot;&gt;0&lt;/item&gt;
&lt;/item&gt;
</item>
</item>

Escaping this fragment again gives:

&lt;item type=&quot;Struct&quot;&gt;
&lt;item name=&quot;level_id&quot;&gt;4_2&lt;/item&gt;
&lt;item name=&quot;images&quot; type=&quot;Array&quot;&gt;قÄ-&amp;lt;قÄ،item 
typeقÄ-=&amp;quot;قÄ،StructقÄ-&amp;quot;&amp;gt;قÄ،
قÄ-&amp;lt;قÄ،item 
nameقÄ-=&amp;quot;قÄ،pathقÄ-&amp;quot;&amp;gt;قÄ،Links/lets&amp;amp;dance.jpgقÄ-&amp;lt;/قÄ،itemقÄ-&amp;gt;قÄ،
قÄ-&amp;lt;قÄ،item 
nameقÄ-=&amp;quot;قÄ،spread_indexقÄ-&amp;quot;&amp;gt;قÄ،0قÄ-&amp;lt;/قÄ،itemقÄ-&amp;gt;قÄ،
قÄ-&amp;lt;/قÄ،itemقÄ-&amp;gt;قÄ،
قÄ-&amp;lt;قÄ،item typeقÄ-=&amp;quot;قÄ،StructقÄ-&amp;quot;&amp;gt;قÄ،
قÄ-&amp;lt;قÄ،item 
nameقÄ-=&amp;quot;قÄ،pathقÄ-&amp;quot;&amp;gt;قÄ،Links/doubles_1قÄ-/قÄ،lets&amp;amp;dance.jpgقÄ-&amp;lt;/قÄ،itemقÄ-&amp;gt;قÄ،
قÄ-&amp;lt;قÄ،item 
nameقÄ-=&amp;quot;قÄ،spread_indexقÄ-&amp;quot;&amp;gt;قÄ،0قÄ-&amp;lt;/قÄ،itemقÄ-&amp;gt;قÄ،
قÄ-&amp;lt;/قÄ،itemقÄ-&amp;gt;قÄ،
&lt;/item&gt;
&lt;/item&gt;


Has anyone a solution for this problem?

Thanks a lot for your help.

Vit2Print.com NVTieltstraat 1678740 Pittem BelgiumPhone : +32 51 42 40 15Fax : 
+32 51 40 29 22Web : www.vit2print.com





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