Writing element content

Writing element content
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+ Writing element content uses many of the same steps we used above + — parsing the document and walking the tree. We parse the document, + then traverse the tree to find the place we want to insert our element. For + this example, we want to again find the "storyinfo" element and + this time insert a keyword. Then we'll write the file to disk. Full code: + Appendix E, Code for Add Keyword Example

+ The main difference in this example is in + parseStory: + +

+void
+parseStory (xmlDocPtr doc, xmlNodePtr cur, char *keyword) {
+
+	 xmlNewTextChild (cur, NULL, "keyword", keyword);
+    return;
+}
+

The xmlNewTextChild + function adds a new child element at the + current node pointer's location in the + tree, specified by cur.

+ + Once the node has been added, we would like to write the document to + file. Is you want the element to have a namespace, you can add it here as + well. In our case, the namespace is NULL. +

+	xmlSaveFormatFile (docname, doc, 1);
+

+ The first parameter is the name of the file to be written. You'll notice + it is the same as the file we just read. In this case, we just write over + the old file. The second parameter is a pointer to the xmlDoc + structure. Setting the third parameter equal to one ensures indenting on output. +

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