C++ string::CPtr类代码示例

TEST(GTestXmlDom, TestElement) {
    Document::CPtr doc = Document::parse(sample);
    ASSERT_TRUE(!doc->asAttr());
    ASSERT_TRUE(!doc->asElement());
    ASSERT_TRUE(!!doc->asDocument());

    Node::CPtr node = doc->firstChild();
    ASSERT_TRUE(!node->asAttr());
    ASSERT_TRUE(!!node->asElement());
    ASSERT_TRUE(!node->asDocument());

    Element::CPtr element = node->asElement();
    String::CPtr tag = element->tagName();
    String::CPtr attrVal1 = element->getAttribute(String::create("name"));
    String::CPtr attrVal2 = element->getAttribute(String::create("foo"));
    String::CPtr attrVal3 = element->getAttribute(String::null());
    ASSERT_TRUE(tag->equals(String::create("team")));
    ASSERT_TRUE(attrVal1->equals(String::create("foo")));
    ASSERT_TRUE(attrVal2->equals(String::create()));
    ASSERT_TRUE(!attrVal3);
    ASSERT_TRUE(element->hasAttribute(String::create("name")));
    ASSERT_FALSE(element->hasAttribute(String::create("foo")));
    ASSERT_FALSE(element->hasAttribute(String::null()));

    Attr::CPtr attr1 = element->getAttributeNode(String::create("name"));
    Attr::CPtr attr2 = element->getAttributeNode(String::create("foo"));
    Attr::CPtr attr3 = element->getAttributeNode(String::null());
    ASSERT_TRUE(!!attr1);
    ASSERT_TRUE(!attr2);
    ASSERT_TRUE(!attr3);
}

String::CPtr resolve(JsArray::CPtr paths) {
    const Size kMax = 8192;
    char dir[kMax];
    char* r = getcwd(dir, kMax);
    if (!r) return String::null();

    if (!paths) return String::create(dir);

    StringBuilder::Ptr resolved = StringBuilder::create();
    resolved->appendStr(dir);
    Size len = paths->length();
    for (Size i = 0; i < len; i++) {
        String::CPtr path = paths->getCPtr<String>(i);
        if (path) {
            if (isSep(path->charAt(0))) {
                resolved = StringBuilder::create();
#ifdef LIBJ_PF_WINDOWS
                // append the drive letter
                resolved->appendChar(dir[0]);
                resolved->appendChar(dir[1]);
            } else if (isAlpha(path->charAt(0)) && path->charAt(1) == ':') {
                resolved = StringBuilder::create();
#endif
            } else if (!path->isEmpty()) {
                resolved->appendChar(SEP);
            }
            resolved->appendStr(path);
        }
    }
    return trimSeps(normalize(resolved->toString()));
}

String::CPtr percentDecode(String::CPtr str, String::Encoding enc) {
    if (!str || str->isEmpty())
        return String::create();

    Size len = str->length() + 1;
    char* decoded = new char[len];
    Size size = percentDecode(decoded, len, str->toStdString().c_str());
    String::CPtr res;
    switch (enc) {
    case String::UTF8:
        res = String::create(decoded, enc, size);
        break;
    case String::UTF16:
    case String::UTF16BE:
    case String::UTF16LE:
        res = String::create(decoded, enc, size >> 1);
        break;
    case String::UTF32:
    case String::UTF32BE:
    case String::UTF32LE:
        res = String::create(decoded, enc, size >> 2);
        break;
    default:
        assert(false);
        res = String::null();
    }
    delete[] decoded;
    return res;
}

Boolean log(const Value& val) {
    String::CPtr s = String::valueOf(val);
    if (!s)
        return false;
    std::cout << s->toStdString() << std::endl;
    return true;
}

static inline Size indexOfSep(String::CPtr str, Size from) {
    assert(str);
    Size len = str->length();
    for (Size i = from; i < len; i++) {
        if (isSep(str->charAt(i))) return i;
    }
    return NO_POS;
}

TEST(GTestJsClosure, TestClosure2) {
    String::CPtr abc = String::create("abc");
    String::CPtr xyz = String::create("xyz");

    JsClosure::Ptr concat = JsClosure::create(
        [abc, xyz] (JsArray::Ptr args) -> Value {
        return abc->concat(xyz);
    });

    ASSERT_TRUE(concat->call().equals(String::create("abcxyz")));
}

Boolean error(const Value& val) {
    if (val.isUndefined() || !isPrintable(LEVEL_ERROR))
        return false;

    String::CPtr s = toString(val);
    if (s) {
        error(s->toStdString().c_str());
        return true;
    } else {
        return false;
    }
}

Boolean warn(const Value& val) {
    if (val.isUndefined() || !isPrintable(LEVEL_WARNING))
        return false;

    String::CPtr s = toString(val);
    if (s) {
        warn(s->toStdString().c_str());
        return true;
    } else {
        return false;
    }
}

Boolean log(const Value& val) {
    if (val.isUndefined() || !isPrintable(LEVEL_NORMAL))
        return false;

    String::CPtr s = toString(val);
    if (s) {
        log(s->toStdString().c_str());
        return true;
    } else {
        return false;
    }
}

String::CPtr extname(String::CPtr path) {
    if (!path) return String::create();

    String::CPtr base = basename(path);
    if (base->charAt(0) == '.') return String::create();

    Size lastIndex = base->lastIndexOf('.');
    if (lastIndex == NO_POS) {
        return String::create();
    } else {
        return base->substring(lastIndex);
    }
}

TEST(GTestValue, TestTo10) {
    Value v = String::create("abc");
    String::CPtr s;
    ASSERT_TRUE(to<String::CPtr>(v, &s));
    ASSERT_TRUE(s->equals(String::create("abc")));

    Immutable::CPtr i1;
    ASSERT_FALSE(to<Immutable::CPtr>(v, &i1));

    Immutable::CPtr i2 = String::create("123");
    v = i2;
    Immutable::CPtr i3;
    ASSERT_TRUE(to<Immutable::CPtr>(v, &i3));
    ASSERT_TRUE(i3->equals(String::create("123")));
}

TEST(GTestStringBuffer, TestToStdString) {
    const char u[] = {
        0xe3, 0x81, 0x82,
        0xe3, 0x81, 0x84,
        0xe3, 0x81, 0x86,
        0
    };

    String::CPtr s = String::create(u, String::UTF8);
    StringBuffer::Ptr sb = StringBuffer::create(s);

    ASSERT_EQ(s->toStdString(String::UTF8),  sb->toStdString());
    ASSERT_EQ(s->toStdString(String::UTF16), sb->toStdString(String::UTF16));
    ASSERT_EQ(s->toStdString(String::UTF32), sb->toStdString(String::UTF32));
}

TEST(GTestJsRegExp, TestExec) {
    JsRegExp::Ptr re = JsRegExp::create(String::create("a+(b*)(c)"));

    JsArray::Ptr a = re->exec(String::create("xaacz"));
    ASSERT_EQ(3, a->length());
    ASSERT_TRUE(toCPtr<String>(a->get(0))->equals(String::create("aac")));
    ASSERT_TRUE(a->get(1).isUndefined());
    ASSERT_TRUE(toCPtr<String>(a->get(2))->equals(String::create("c")));
    Int index = -1;
    to<Int>(a->getProperty(String::create("index")), &index);
    ASSERT_EQ(1, index);
    String::CPtr input =
        toCPtr<String>(a->getProperty(String::create("input")));
    ASSERT_TRUE(input->equals(String::create("xaacz")));

    ASSERT_FALSE(re->exec(String::create("bc")));
}

static inline Size lastIndexOfSep(String::CPtr str, Size from = NO_POS) {
    assert(str);
    Size len = str->length();
    if (!len) return NO_POS;

    if (from >= len) from = len - 1;

    Size i = from;
    while (1) {
        if (isSep(str->charAt(i))) return i;
        if (i) {
            i--;
        } else {
            break;
        }
    }
    return NO_POS;
}

static inline String::CPtr trimSeps(String::CPtr str) {
    assert(str);
    Size len = str->length();
    if (!len) return str;

    Size i = len - 1;
    while (1) {
        if (!isSep(str->charAt(i))) {
            return str->substring(0, i + 1);
        }
        if (i) {
            i--;
        } else {
            break;
        }
    }
    return str->substring(0, 1);
}