LibC: Implement iswctype

fleximus · Sep 17, 2021 · 8c7b566 · 8c7b566
1 parent ff0ab8b
commit 8c7b566
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Showing 2 changed files with 68 additions and 3 deletions.
diff --git a/Tests/LibC/TestWctype.cpp b/Tests/LibC/TestWctype.cpp
@@ -39,3 +39,30 @@ TEST_CASE(wctrans)
  EXPECT(wctrans("") == 0);
  EXPECT(wctrans("abc") == 0);
 }
+
+TEST_CASE(iswctype)
+{
+ const wint_t test_chars[] = { L'A', L'a', L'F', L'f', L'Z', L'z', L'0', L'\n', L'.', L'\x00' };
+
+ // Test that valid properties are wired to the correct implementation.
+ for (unsigned int i = 0; i < sizeof(test_chars) / sizeof(test_chars[0]); i++) {
+ EXPECT(iswctype(test_chars[i], wctype("alnum")) == iswalnum(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("alpha")) == iswalpha(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("blank")) == iswblank(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("cntrl")) == iswcntrl(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("digit")) == iswdigit(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("graph")) == iswgraph(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("lower")) == iswlower(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("print")) == iswprint(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("punct")) == iswpunct(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("space")) == iswspace(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("upper")) == iswupper(test_chars[i]));
+ EXPECT(iswctype(test_chars[i], wctype("xdigit")) == iswxdigit(test_chars[i]));
+ }
+
+ // Test that invalid properties always return zero.
+ for (unsigned int i = 0; i < sizeof(test_chars) / sizeof(test_chars[0]); i++) {
+ EXPECT(iswctype(test_chars[i], 0) == 0);
+ EXPECT(iswctype(test_chars[i], -1) == 0);
+ }
+}
diff --git a/Userland/Libraries/LibC/wctype.cpp b/Userland/Libraries/LibC/wctype.cpp
@@ -92,10 +92,48 @@ int iswblank(wint_t wc)
  return __inline_isblank(wc);
 }
 
-int iswctype(wint_t, wctype_t)
+int iswctype(wint_t wc, wctype_t charclass)
 {
- dbgln("FIXME: Implement iswctype()");
- TODO();
+ switch (charclass) {
+ case WCTYPE_ALNUM:
+ return iswalnum(wc);
+
+ case WCTYPE_ALPHA:
+ return iswalpha(wc);
+
+ case WCTYPE_BLANK:
+ return iswblank(wc);
+
+ case WCTYPE_CNTRL:
+ return iswcntrl(wc);
+
+ case WCTYPE_DIGIT:
+ return iswdigit(wc);
+
+ case WCTYPE_GRAPH:
+ return iswgraph(wc);
+
+ case WCTYPE_LOWER:
+ return iswlower(wc);
+
+ case WCTYPE_PRINT:
+ return iswprint(wc);
+
+ case WCTYPE_PUNCT:
+ return iswpunct(wc);
+
+ case WCTYPE_SPACE:
+ return iswspace(wc);
+
+ case WCTYPE_UPPER:
+ return iswupper(wc);
+
+ case WCTYPE_XDIGIT:
+ return iswxdigit(wc);
+
+ default:
+ return 0;
+ }
 }
 
 wctype_t wctype(const char* property)