void XmlReader::pop_tag()
{
const Tag& tag = open_tags.back();
pop_namespaces(tag.previous_mappings);
current_name = tag.name;
open_tags.pop_back();
}
/* called from the GMarkupParser */
static void
passthrough_handler (GMarkupParseContext *markup_context,
const gchar *passthrough_text,
gsize text_len,
gpointer user_data,
GError **error)
{
XMPParseContext *context = user_data;
switch (context->state)
{
case STATE_START:
case STATE_AFTER_XPACKET:
if ((text_len >= 21)
&& (! strncmp (passthrough_text, "<?xpacket begin=", 16)))
context->state = STATE_INSIDE_XPACKET;
else
parse_error (context, error, XMP_ERROR_PARSE,
_("XMP packets must start with <?xpacket begin=...?>"));
break;
case STATE_AFTER_RDF:
/* the x:xmpmeta element is missing */
context->depth--;
pop_namespaces (context, error);
/*fallthrough*/
case STATE_AFTER_XMPMETA:
if ((text_len >= 19)
&& (! strncmp (passthrough_text, "<?xpacket end=", 14)))
context->state = STATE_AFTER_XPACKET;
else
parse_error (context, error, XMP_ERROR_PARSE,
_("XMP packets must end with <?xpacket end=...?>"));
break;
default:
if ((text_len >= 18)
&& (! strncmp (passthrough_text, "<?adobe-", 8)))
; /* ignore things like <?adobe-xap-filters esc="CRLF"?> */
else if (! (context->flags & XMP_FLAG_NO_COMMENTS)
&& (text_len > 7)
&& (! strncmp (passthrough_text, "<!--", 4)))
; /* comments are not allowed in XMP, but let's ignore them */
else
parse_error (context, error, XMP_ERROR_INVALID_COMMENT,
_("XMP cannot contain XML comments or processing instructions"));
break;
}
}
/* called from the GMarkupParser */
static void
end_element_handler (GMarkupParseContext *markup_context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
XMPParseContext *context = user_data;
#ifdef DEBUG_XMP_PARSER
g_print ("[%25s/%17s] %d </%s>\n",
state_names[context->state],
(context->saved_state == STATE_ERROR
? "-"
: state_names[context->saved_state]),
context->depth, element_name);
#endif
switch (context->state)
{
case STATE_INSIDE_PROPERTY:
context->state = STATE_INSIDE_TOPLEVEL_DESC;
if (context->property != NULL)
{
if (context->prop_cur_value < 0)
{
/* if not set yet, then property was empty */
add_property_value (context, XMP_PTYPE_TEXT,
NULL, g_strdup (""));
}
propagate_property (context, error);
}
break;
case STATE_INSIDE_STRUCT:
context->state = context->saved_state;
if (context->property != NULL)
propagate_property (context, error);
break;
case STATE_INSIDE_ALT:
case STATE_INSIDE_BAG:
case STATE_INSIDE_SEQ:
if (context->property && context->prop_cur_value < 0)
{
g_free (context->property);
context->property = NULL;
}
context->state = STATE_INSIDE_PROPERTY;
break;
case STATE_INSIDE_QDESC:
context->state = context->saved_state;
break;
case STATE_INSIDE_QDESC_VALUE:
case STATE_INSIDE_QDESC_QUAL:
context->state = STATE_INSIDE_QDESC;
break;
case STATE_INSIDE_STRUCT_ELEMENT:
context->state = STATE_INSIDE_STRUCT;
if ((context->prop_cur_value >= 0)
&& (context->prop_value[context->prop_cur_value] == NULL))
update_property_value (context, g_strdup (""));
break;
case STATE_INSIDE_ALT_LI:
context->state = STATE_INSIDE_ALT;
if ((context->prop_cur_value >= 0)
&& (context->prop_value[context->prop_cur_value] == NULL))
update_property_value (context, g_strdup (""));
break;
case STATE_INSIDE_ALT_LI_RSC:
context->state = STATE_INSIDE_ALT;
break;
case STATE_INSIDE_ALT_LI_RSC_IMG:
context->state = STATE_INSIDE_ALT_LI_RSC;
break;
case STATE_INSIDE_BAG_LI:
case STATE_INSIDE_BAG_LI_RSC:
context->state = STATE_INSIDE_BAG;
break;
case STATE_INSIDE_SEQ_LI:
case STATE_INSIDE_SEQ_LI_RSC:
context->state = STATE_INSIDE_SEQ;
break;
case STATE_INSIDE_TOPLEVEL_DESC:
g_return_if_fail (matches_rdf (element_name, context, "Description"));
context->state = STATE_INSIDE_RDF;
break;
case STATE_INSIDE_RDF:
g_return_if_fail (matches_rdf (element_name, context, "RDF"));
context->state = STATE_AFTER_RDF;
break;
case STATE_AFTER_RDF:
g_return_if_fail (! strcmp (element_name, "x:xmpmeta")
|| ! strcmp (element_name, "x:xapmeta")
|| matches_with_prefix (element_name,
context->xmp_prefix,
context->xmp_prefix_len,
"xmpmeta"));
context->state = STATE_AFTER_XMPMETA;
break;
case STATE_SKIPPING_UNKNOWN_ELEMENTS:
case STATE_SKIPPING_IGNORED_ELEMENTS:
if (context->depth == context->saved_depth)
{
/* resume normal processing */
context->state = context->saved_state;
context->saved_state = STATE_ERROR;
}
break;
default:
parse_error (context, error, XMP_ERROR_PARSE,
_("End of element <%s> not expected in this context"),
element_name);
break;
}
pop_namespaces (context, error);
context->depth--;
}
