/*
* postprocess_attributes
*
* This function scans a tag's list of attributes for URI-attributes
* referring to an external URI. If it succeeds, and the hsc-process
* has it's hp->strip_ext flag enabled, the function exits.
*
* Otherwise, it scans the attributes for new IDs and references
* and updates the document data if neccessary (but only for start tags)
*
* params:
* hp ........ hsc-process
* tag ....... tag whose attribute list should be examined
* open_tag .. for end tags, the document-data should not be
* updated again
* result:
* TRUE, if tag should NOT be stripped
*/
BOOL postprocess_tagattr(HSCPRC * hp, HSCTAG * tag, BOOL open_tag) {
BOOL dontstrip = TRUE;
if (tag->attr) {
/*
* find out, if list should be refused
*/
if (hp->strip_ext
&& tag->uri_stripext
&& get_vartext(tag->uri_stripext)
&& (uri_kind(get_vartext(tag->uri_stripext)) == URI_ext)
)
{
D(fprintf(stderr, DHL "strip external\n"));
dontstrip = FALSE;
} else if (open_tag) {
/*
* search for new IDs and references
*/
DLNODE *nd = dll_first(tag->attr);
while (nd) {
HSCATTR *attrib = (HSCATTR *) dln_data(nd);
STRPTR value = get_vartext(attrib);
if (value) {
if (attrib->vartype == VT_URI) {
/* new reference */
INFILEPOS *fpos = new_infilepos(hp->inpf);
CALLER *newcaller = fpos2caller(fpos);
HSCREF *newref =
app_reference(hp->project->document, value);
newref->caller = newcaller;
del_infilepos(fpos);
D(fprintf(stderr, DHL "new REFERENCE: `%s'\n", value));
} else if (attrib->vartype == VT_ID) {
/* new id defined */
D(fprintf(stderr, DHL "new ID: `%s'\n", value));
add_local_iddef(hp, value);
}
}
nd = dln_next(nd);
}
}
}
return (dontstrip);
}
/*
* add_local_iddef
*
* define a new local ID that can be refered to
*/
BOOL add_local_iddef(HSCPRC * hp, STRPTR id)
{
INFILEPOS *fpos = new_infilepos(hp->inpf);
HSCIDD *iddef = find_iddef(hp->project->document, id);
DIHP(fprintf(stderr, DHL "add ref to id `%s' at `%s' (%lu,%lu)\n",
id, ifp_get_fname(fpos),
ifp_get_y(fpos), ifp_get_x(fpos)));
/* check for duplicate definition */
if (iddef)
{
/* duplicate definition */
DIHP(fprintf(stderr, DHL " duplicate definition\n"));
hsc_message(hp, MSG_REDEFINE_ID,
"local id %q already declared", id);
set_infilepos(hp->inpf, iddef->fpos);
hsc_message(hp, MSG_REDEFINE_ID,
"(location of previous declaration)");
set_infilepos(hp->inpf, fpos);
del_infilepos(fpos);
}
else
{
/* remember new local id */
iddef = app_iddef(hp->project->document, id);
iddef->caller = fpos2caller(fpos);
iddef->fpos = fpos;
DIHP(fprintf(stderr, DHL " append to local iddefs\n"));
}
return (TRUE);
}