vbscript: Added Trim() implementation.

dlls/vbscript/global.c

@@ -864,8 +864,30 @@ static HRESULT Global_RTrim(vbdisp_t *This, VARIANT *arg, unsigned args_cnt, VAR
 
 static HRESULT Global_Trim(vbdisp_t *This, VARIANT *arg, unsigned args_cnt, VARIANT *res)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    BSTR str, conv_str = NULL;
+    WCHAR *begin_ptr, *end_ptr;
+    HRESULT hres;
+
+    TRACE("%s\n", debugstr_variant(arg));
+
+    if(V_VT(arg) == VT_BSTR) {
+        str = V_BSTR(arg);
+    }else {
+        hres = to_string(arg, &conv_str);
+        if(FAILED(hres))
+            return hres;
+        str = conv_str;
+    }
+
+    for(begin_ptr = str; *begin_ptr && isspaceW(*begin_ptr); begin_ptr++);
+    for(end_ptr = str+SysStringLen(str); end_ptr-1 > begin_ptr && isspaceW(*(end_ptr-1)); end_ptr--);
+
+    str = SysAllocStringLen(begin_ptr, end_ptr-begin_ptr);
+    SysFreeString(conv_str);
+    if(!str)
+        return E_OUTOFMEMORY;
+
+    return return_bstr(res, str);
 }
 
 static HRESULT Global_Space(vbdisp_t *This, VARIANT *arg, unsigned args_cnt, VARIANT *res)

dlls/vbscript/tests/api.vbs

@@ -225,6 +225,18 @@ TestRight "test", 0, ""
 TestRight 123, 2, "23"
 if isEnglishLang then TestRight true, 2, "ue"
 
+Sub TestTrim(str, exstr)
+    Call ok(Trim(str) = exstr, "Trim(" & str & ") = " & Trim(str))
+End Sub
+
+TestTrim "   test    ", "test"
+TestTrim "test    ", "test"
+TestTrim "   test", "test"
+TestTrim "test", "test"
+TestTrim "", ""
+TestTrim 123, "123"
+if isEnglishLang then TestTrim true, "True"
+
 Sub TestRound(val, exval, vt)
     Call ok(Round(val) = exval, "Round(" & val & ") = " & Round(val))
     Call ok(getVT(Round(val)) = vt, "getVT(Round(" & val & ")) = " & getVT(Round(val)))