Add lilv_path_filename()

2 files changed, 30 insertions, 0 deletions

diff --git a/src/filesystem.c b/src/filesystem.c
index c8a58c1..0ec9802 100644
--- a/src/filesystem.c
+++ b/src/filesystem.c
@@ -193,6 +193,28 @@ lilv_path_parent(const char* path)
 }
 
 char*
+lilv_path_filename(const char* path)
+{
+	const size_t path_len = strlen(path);
+	size_t       last_sep = path_len;
+	for (size_t i = 0; i < path_len; ++i) {
+		if (lilv_is_dir_sep(path[i])) {
+			last_sep = i;
+		}
+	}
+
+	if (last_sep >= path_len) {
+		return lilv_strdup(path);
+	}
+
+	const size_t ret_len = path_len - last_sep;
+	char* const  ret     = (char*)calloc(ret_len + 1, 1);
+
+	strncpy(ret, path + last_sep + 1, ret_len);
+	return ret;
+}
+
+char*
 lilv_path_join(const char* a, const char* b)
 {
 	if (!a) {
diff --git a/src/filesystem.h b/src/filesystem.h
index 14f25d7..319dd49 100644
--- a/src/filesystem.h
+++ b/src/filesystem.h
@@ -60,6 +60,14 @@ lilv_path_relative_to(const char* path, const char* base);
 char*
 lilv_path_parent(const char* path);
 
+/**
+   Return the filename component of `path` without any directories.
+
+   Returns the empty string if `path` is the root path.
+*/
+char*
+lilv_path_filename(const char* path);
+
 /// Join path `a` and path `b` with a single directory separator between them
 char*
 lilv_path_join(const char* a, const char* b);