is* don't coerce input for efficiency

Author: scivision

+stdlib/is_char_device.m

@@ -6,7 +6,7 @@
 
 function ok = is_char_device(p)
 arguments
-  p (1,1) string
+  p {mustBeTextScalar}
 end
 
 if stdlib.isoctave()

+stdlib/is_exe.m

@@ -4,7 +4,7 @@
 
 function ok = is_exe(p)
 arguments
-  p (1,1) string
+  p {mustBeTextScalar}
 end
 
 a = file_attributes(p);

+stdlib/is_prefix.m

@@ -4,8 +4,8 @@
 
 function s = is_prefix(prefix, pth)
 arguments
-  prefix (1,1) string
-  pth (1,1) string
+  prefix {mustBeTextScalar}
+  pth {mustBeTextScalar}
 end
 
 pr = stdlib.drop_slash(prefix);

+stdlib/is_readable.m

@@ -4,7 +4,7 @@
 
 function ok = is_readable(p)
 arguments
-  p (1,1) string
+  p {mustBeTextScalar}
 end
 
 a = file_attributes(p);

+stdlib/is_regular_file.m

@@ -3,11 +3,11 @@
 
 function r = is_regular_file(p)
 arguments
-  p (1,1) string
+  p {mustBeTextScalar}
 end
 
 % needs absolute()
-p = stdlib.absolute(p, "", false);
+p = stdlib.absolute(p, '', false);
 
 op = javaPathObject(p);
 opt = javaLinkOption();

+stdlib/is_subdir.m

@@ -4,8 +4,8 @@
 
 function s = is_subdir(subdir, dir)
 arguments
-  subdir (1,1) string
-  dir (1,1) string
+  subdir {mustBeTextScalar}
+  dir {mustBeTextScalar}
 end
 
 s = stdlib.drop_slash(subdir);

+stdlib/is_symlink.m

@@ -3,7 +3,7 @@
 
 function ok = is_symlink(p)
 arguments
-  p (1,1) string
+  p {mustBeTextScalar}
 end
 
 

+stdlib/is_url.m

@@ -3,7 +3,7 @@
 
 function y = is_url(s)
 arguments
-  s (1,1) string
+  s {mustBeTextScalar}
 end
 
 try

+stdlib/is_writable.m

@@ -4,7 +4,7 @@
 
 function ok = is_writable(p)
 arguments
-  p (1,1) string
+  p {mustBeTextScalar}
 end
 
 a = file_attributes(p);

+stdlib/private/file_attributes.m

@@ -1,6 +1,6 @@
 function a = file_attributes(p)
 arguments
-  p (1,1) string
+  p {mustBeTextScalar}
 end
 
 a = [];