Re: [xml] (no subject)

On Sun, Sep 28, 2003 at 10:35:57AM -0400, Jim Crafton wrote:
I am using libxml for a docbook editor. I would like to provide  
autocompletion for docbook, such that when you type a "<" character the 
editor is able to supply a valid set of tags, and even better, would be 
the ability to have the tags correspond with the parent, so you only 
the appropriate tags for where you are at in the document. So I *think* 
(I am a bit new to this so bear with me) I can use libxml to read the  
docbook DTD to pull down all the valid tags for docbook. Is this right, 
and if so, how do I do this?  I didn't see an obvious samples of this  
(or maybe I missed something. 


 * xmlValidGetValidElements:
 * @prev:  an element to insert after
 * @next:  an element to insert next
 * @list:  an array to store the list of child names
 * @max:  the size of the array
 * This function returns the list of authorized children to insert
 * within an existing tree while respecting the validity constraints
 * forced by the Dtd. The insertion point is defined using @prev and
 * @next in the following ways:
 *  to insert before 'node': xmlValidGetValidElements(node->prev, node, ...
 *  to insert next 'node': xmlValidGetValidElements(node, node->next, ...
 *  to replace 'node': xmlValidGetValidElements(node->prev, node->next, ...
 *  to prepend a child to 'node': xmlValidGetValidElements(NULL, node->childs,
 *  to append a child to 'node': xmlValidGetValidElements(node->last, NULL, ...
 * pointers to the element names are inserted at the beginning of the array
 * and do not need to be freed.
 * returns the number of element in the list, or -1 in case of error. If
 *    the function returns the value @max the caller is invited to grow the
 *    receiving array and retry.
xmlValidGetValidElements(xmlNode *prev, xmlNode *next, const xmlChar **list,
                         int max) {


 * xmlValidGetPotentialChildren:
 * @ctree:  an element content tree
 * @list:  an array to store the list of child names
 * @len:  a pointer to the number of element in the list
 * @max:  the size of the array
 * Build/extend a list of  potential children allowed by the content tree
 * returns the number of element in the list, or -1 in case of error.
xmlValidGetPotentialChildren(xmlElementContent *ctree, const xmlChar **list,
                             int *len, int max) {

  available from valid.c


Daniel Veillard      | Red Hat Network
veillard redhat com  | libxml GNOME XML XSLT toolkit | Rpmfind RPM search engine

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