add stringlist function. They can be used to build a list

of strings. For now mainly useful to print the resulting
list in columns which is used in tab completion and ls.

1 files changed, 27 insertions, 0 deletions

diff --git a/include/stringlist.h b/include/stringlist.h
new file mode 100644
index 0000000000..87380cb5d5
--- /dev/null
+++ b/include/stringlist.h
@@ -0,0 +1,27 @@
+#ifndef __STRING_H
+#define __STRING_H
+
+#include <list.h>
+
+struct string_list {
+	struct list_head list;
+	char str[0];
+};
+
+int string_list_add(struct string_list *sl, char *str);
+void string_list_print_by_column(struct string_list *sl);
+
+static inline void string_list_init(struct string_list *sl)
+{
+	INIT_LIST_HEAD(&sl->list);
+}
+
+static inline void string_list_free(struct string_list *sl)
+{
+	struct string_list *entry, *safe;
+
+	list_for_each_entry_safe(entry, safe, &sl->list, list)
+		free(entry);
+}
+
+#endif /* __STRING_H */