1 files changed, 55 insertions, 0 deletions
diff --git a/scheme.c b/scheme.c
new file mode 100644
index 00000000..05bc4b0d
--- /dev/null
+++ b/scheme.c
@@ -0,0 +1,55 @@
+#include "scheme.h"
+
+#include "macro.h"
+#include "calendar.h"
+#include "strbuf.h"
+
+static SCM calendar_type;
+
+void init_calendar_type (void) {
+	SCM name = scm_from_utf8_symbol("calendar");
+	SCM slots = scm_list_1(scm_from_utf8_symbol("data"));
+
+	calendar_type = scm_make_foreign_object_type(name, slots, NULL);
+}
+
+SCM make_calendar (SCM path) {
+
+	vcalendar* cal =
+		(vcalendar*) scm_gc_malloc (
+				sizeof(*cal), "calendar");
+	CONSTRUCT(vcalendar, cal);
+
+	char* p = scm_to_utf8_stringn(path, NULL);
+	read_vcalendar(cal, p);
+	free(p);
+
+	return scm_make_foreign_object_1
+		(calendar_type, cal);
+
+}
+
+static SCM scm_from_strbuf(strbuf* s) {
+	return scm_from_utf8_stringn (s->mem, s->len);
+}
+
+SCM calendar_get_attr(SCM calendar, SCM id, SCM attr) {
+	scm_assert_foreign_object_type (calendar_type, calendar);
+	vcalendar* cal = scm_foreign_object_ref (calendar, 0);
+
+	vevent* v = cal->events[scm_to_int(id)];
+	char* key = scm_to_utf8_stringn(scm_string_upcase(attr), NULL);
+	content_line* c = get_property (v, key);
+	free(key);
+
+	if (c == NULL) return SCM_BOOL_F;
+
+	return scm_from_strbuf(&c->val);
+}
+
+void init_calendar () {
+	init_calendar_type();
+
+	scm_c_define_gsubr ("make-calendar", 1, 0, 0, make_calendar);
+	scm_c_define_gsubr ("get-attr", 3, 0, 0, calendar_get_attr);
+}