/* has_metadata - parse document and report whether metadata is present */
gboolean has_metadata(char *text, int extensions) {
gboolean hasMeta;
element *result;
element *references;
element *notes;
element *labels;
GString *formatted_text;
formatted_text = preformat_text(text);
references = parse_references(formatted_text->str, extensions);
notes = parse_notes(formatted_text->str, extensions, references);
labels = parse_labels(formatted_text->str, extensions, references, notes);
result = parse_metadata_only(formatted_text->str, extensions);
hasMeta = FALSE;
if (result != NULL) {
if (result->children != NULL) {
hasMeta = TRUE;
free_element_list(result);
} else {
free_element(result);
}
}
free_element_list(references);
free_element_list(labels);
return hasMeta;
}
/* extract_metadata_value - parse document and return value of specified
metadata key (e.g. "LateX Mode")/
Returns a null-terminated string, which must be freed after use. */
char * extract_metadata_value(char *text, int extensions, char *key) {
char *value;
element *result;
GString *formatted_text;
formatted_text = preformat_text(text);
result = parse_metadata_only(formatted_text->str, extensions);
value = metavalue_for_key(key, result->children);
free_element_list(result);
return value;
}
/* extract_metadata_value - parse document and return value of specified
metadata key (e.g. "LateX Mode")/
Returns a null-terminated string, which must be freed after use. */
char * extract_metadata_value(char *text, int extensions, char *key) {
char *value;
element *result;
element *references;
element *notes;
element *labels;
GString *formatted_text;
formatted_text = preformat_text(text);
references = parse_references(formatted_text->str, extensions);
notes = parse_notes(formatted_text->str, extensions, references);
labels = parse_labels(formatted_text->str, extensions, references, notes);
result = parse_metadata_only(formatted_text->str, extensions);
value = metavalue_for_key(key, result);
free_element_list(result);
free_element_list(references);
free_element_list(labels);
return value;
}