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LibC: Implement towctrans

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This commit is contained in:
Tim Schumacher 2021-09-17 18:30:25 +02:00 • committed by Brian Gianforcaro
parent 8c7b566629
commit 42031f026a
2 changed files with 28 additions and 3 deletions
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17
Tests/LibC/TestWctype.cpp
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@ -66,3 +66,20 @@ TEST_CASE(iswctype)
EXPECT(iswctype(test_chars[i], -1) == 0); EXPECT(iswctype(test_chars[i], -1) == 0);
} }
} }
TEST_CASE(towctrans)
{
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 mappings are wired to the correct implementation.
for (unsigned int i = 0; i < sizeof(test_chars) / sizeof(test_chars[0]); i++) {
EXPECT(towctrans(test_chars[i], wctrans("tolower")) == towlower(test_chars[i]));
EXPECT(towctrans(test_chars[i], wctrans("toupper")) == towupper(test_chars[i]));
}
// Test that invalid mappings always return the character unchanged.
for (unsigned int i = 0; i < sizeof(test_chars) / sizeof(test_chars[0]); i++) {
EXPECT(towctrans(test_chars[i], 0) == test_chars[i]);
EXPECT(towctrans(test_chars[i], -1) == test_chars[i]);
}
}

14
Userland/Libraries/LibC/wctype.cpp
View file

@ -187,10 +187,18 @@ wint_t towupper(wint_t wc)
return __inline_toupper(wc); return __inline_toupper(wc);
} }
wint_t towctrans(wint_t, wctrans_t) wint_t towctrans(wint_t wc, wctrans_t desc)
{ {
dbgln("FIXME: Implement towctrans()"); switch (desc) {
TODO(); case WCTRANS_TOLOWER:
return towlower(wc);
case WCTRANS_TOUPPER:
return towupper(wc);
default:
return wc;
}
} }
wctrans_t wctrans(const char* charclass) wctrans_t wctrans(const char* charclass)