1 files changed, 91 insertions, 0 deletions
diff --git a/src/stylesheet.c b/src/stylesheet.c
new file mode 100644
index 0000000..51cce6e
--- /dev/null
+++ b/src/stylesheet.c
@@ -0,0 +1,91 @@
+/*
+ * stylesheet.c
+ *
+ * Copyright © 2013-2018 Thomas White <taw@bitwiz.org.uk>
+ *
+ * This file is part of Colloquium.
+ *
+ * Colloquium is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <json-glib/json-glib.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "stylesheet.h"
+
+
+struct _stylesheet {
+	JsonNode *root;
+};
+
+
+Stylesheet *stylesheet_load(const char *filename)
+{
+	JsonParser *parser;
+	gboolean r;
+	GError *err = NULL;
+	Stylesheet *ss;
+
+	ss = calloc(1, sizeof(Stylesheet));
+	if ( ss == NULL ) return NULL;
+
+	parser = json_parser_new();
+
+	r = json_parser_load_from_file(parser, filename, &err);
+	if ( r == FALSE ) {
+		fprintf(stderr, "Failed to load style sheet: '%s'\n", err->message);
+		return NULL;
+	}
+
+	ss->root = json_parser_steal_root(parser);
+	g_object_unref(parser);
+
+	return ss;
+}
+
+
+char *stylesheet_lookup(Stylesheet *ss, const char *path)
+{
+	JsonNode *node;
+	JsonArray *array;
+	GError *err = NULL;
+	char *ret;
+	const gchar *v;
+
+	node = json_path_query(path, ss->root, &err);
+	array = json_node_get_array(node);
+
+	v = json_array_get_string_element(array, 0);
+	if ( v == NULL ) return NULL;
+
+	ret = strdup(v);
+	json_node_unref(node);
+	return ret;
+}
+
+
+void stylesheet_free(Stylesheet *ss)
+{
+	g_object_unref(ss->root);
+	free(ss);
+}
+