native.parent: any size array

Author: scivision

+stdlib/+native/parent.m

@@ -1,18 +1,20 @@
 function p = parent(pth)
-
-f = fullfile(char(pth));
-if endsWith(f, {'/', filesep}) && ~strcmp(f, stdlib.root(f))
-  f = f(1:end-1);
+arguments
+  pth string
 end
 
+f = fullfile(pth);
+
+i = endsWith(f, ["/", filesep]) & ~strcmp(f, stdlib.root(f));
+
+f(i) = extractBefore(f(i), strlength(f(i)));
+
 p = fileparts(f);
 
-if stdlib.strempty(p)
-  p = '.';
-elseif ispc() && strcmp(p, stdlib.root_name(pth))
-  p = strcat(p, filesep);
-end
+i = stdlib.strempty(p);
+p(i) = ".";
 
-p = string(p);
+i = ispc() & strcmp(p(~i), stdlib.root_name(pth));
+p(i) = strcat(p(i), filesep);
 
 end

+stdlib/parent.m

@@ -4,14 +4,17 @@
 % stdlib.parent("a/b/c") == "a/b"
 % stdlib.parent("a/b/c/") == "a/b"
 
-function p = parent(pth, backend)
+function par = parent(file, backend)
 arguments
-  pth {mustBeTextScalar}
-  backend (1,:)string = ["java", "python", "native"]
+  file string
+  backend (1,:) string = ["java", "python", "native"]
 end
 
-fun = hbackend(backend, "parent");
-
-p = fun(pth);
+if isscalar(file)
+  fun = hbackend(backend, "parent");
+  par = fun(file);
+else
+  par = stdlib.native.parent(file);
+end
 
 end