add mex with_suffix()

with_suffix: enhance test

Author: scivision

+stdlib/with_suffix.m

@@ -1,4 +1,5 @@
 %% WITH_SUFFIX switch file extension
+% optional: mex
 %
 %%% Inputs
 % * p: path to modify
@@ -12,7 +13,7 @@
   suffix {mustBeTextScalar}
 end
 
-f = "";
+f = '';
 
 r = stdlib.parent(p);
 if ~strlength(r), return, end

buildfile.m

@@ -229,6 +229,7 @@ function build_exe(context)
 "src/proximate_to.cpp", ...
 "src/disk_available.cpp", ...
 "src/disk_capacity.cpp", ...
+"src/with_suffix.cpp", ...
 ["src/is_wsl.cpp", linux], ...
 "src/set_permissions.cpp", ...
 ["src/is_rosetta.cpp", mac], ...

src/with_suffix.cpp

@@ -0,0 +1,35 @@
+#include "mex.hpp"
+#include "mexAdapter.hpp"
+
+#include <string>
+
+#include <vector>
+#include <memory>
+#include <filesystem>
+
+#include "ffilesystem.h"
+
+class MexFunction : public matlab::mex::Function {
+private:
+#include "mex2string.inl"
+
+public:
+  void operator()(matlab::mex::ArgumentList outputs, matlab::mex::ArgumentList inputs) {
+
+    matlab::data::ArrayFactory factory;
+
+    std::string path, suffix;
+
+    matlab_2string(inputs, &path, &suffix);
+
+    std::filesystem::path pth(path);
+
+    std::string p = pth.replace_extension(suffix).string();
+
+    if (p.empty()) {
+      outputs[0] = factory.createArray<matlab::data::MATLABString>({0, 0});
+    } else {
+      outputs[0] = factory.createScalar(p);
+    }
+  }
+};

test/TestWithSuffix.m

@@ -1,19 +1,30 @@
 classdef TestWithSuffix < matlab.unittest.TestCase
 
+properties
+is_mex = stdlib.is_mex_fun("stdlib.with_suffix")
+end
+
 properties (TestParameter)
-p = {{"foo.h5", ".nc", "foo\.nc"},...
+p = {{"foo.h5", ".nc", "foo.nc"},...
 {"c", "", "c"}, ...
 {"c.nc", "", "c"}, ...
-{"", ".nc", "\.nc"}, ...
-{"a/b/c/", ".h5", "a/b/c/\.h5"}, ...
-{"a/b/.h5", ".nc", "a/b/\.h5\.nc"}, ...
-{'a/b', '.nc', 'a/b\.nc'}};
+{"", ".nc", ".nc"}, ...
+{'a/b/c/', '.h5', 'a/b/c/.h5'}, ...
+{"a/b/.h5", '.nc', "a/b/.h5.nc"}, ...
+{'a/b', '.nc', 'a/b.nc'}};
 end
 
 methods (Test)
 function test_with_suffix(tc, p)
-import matlab.unittest.constraints.Matches
-tc.verifyThat(stdlib.with_suffix(p{1}, p{2}), Matches(p{3}))
+
+if tc.is_mex
+  r = string(p{3});
+else
+  r = p{3};
+end
+
+tc.verifyEqual(stdlib.with_suffix(p{1}, p{2}), r, ...
+    sprintf("mex: %d", tc.is_mex))
 end
 end