C++ String16::string方法代码示例

// Send a command to the supplicant, and return the reply as a String.
static jstring doStringCommand(JNIEnv* env, jstring javaCommand) {
    char reply[REPLY_BUF_SIZE];
    ScopedUtfChars command(env, javaCommand);
    if (!doCommand(env, javaCommand, reply, sizeof(reply))) {
        return NULL;
    }
    if (DBG) ALOGD("cmd = %s, reply: %s", command.c_str(), reply);
    String16 str;
    if (strstr(command.c_str(),"BSS RANGE=")) {
        parseScanResults(str,reply);
    } else if (strstr(command.c_str(),"GET_NETWORK") &&
              strstr(command.c_str(),"ssid") && !strstr(command.c_str(),"bssid")
              && !strstr(command.c_str(),"scan_ssid")){
        constructSsid(str, reply);
    } else {
        str += String16((char *)reply);
    }
    return env->NewString((const jchar *)str.string(), str.size());
}

status_t String16::setTo(const String16& other, size_t len, size_t begin)
{
    const size_t N = other.size();
    if (begin >= N) {
        SharedBuffer::bufferFromData(mString)->release();
        mString = getEmptyString();
        return NO_ERROR;
    }
    if ((begin+len) > N) len = N-begin;
    if (begin == 0 && len == N) {
        setTo(other);
        return NO_ERROR;
    }

    if (&other == this) {
        LOG_ALWAYS_FATAL("Not implemented");
    }

    return setTo(other.string()+begin, len);
}

String16
pseudo_generate_expansion(const unsigned int length) {
    String16 result = k_expansion_string;
    const char16_t* s = result.string();
    if (result.size() < length) {
        result += String16(" ");
        result += pseudo_generate_expansion(length - result.size());
    } else {
        int ext = 0;
        // Should contain only whole words, so looking for a space
        for (unsigned int i = length + 1; i < result.size(); ++i) {
          ++ext;
          if (s[i] == ' ') {
            break;
          }
        }
        result.remove(length + ext, 0);
    }
    return result;
}

String16
pseudobidi_string(const String16& source)
{
    const char16_t* s = source.string();
    String16 result;
    result += k_rlm;
    result += k_rlo;
    for (size_t i=0; i<source.size(); i++) {
        char16_t c = s[i];
        switch(c) {
            case ' ': result += k_pdf;
                      result += k_rlm;
                      result.append(&c, 1);
                      result += k_rlm;
                      result += k_rlo;
                      break;
            default: result.append(&c, 1);
                     break;
        }
    }
    result += k_pdf;
    result += k_rlm;
    return result;
}

bool String16::startsWith(const String16& prefix) const
{
    const size_t ps = prefix.size();
    if (ps > size()) return false;
    return strzcmp16(mString, ps, prefix.string(), ps) == 0;
}

status_t parseStyledString(Bundle* bundle,
                           const char* fileName,
                           ResXMLTree* inXml,
                           const String16& endTag,
                           String16* outString,
                           Vector<StringPool::entry_style_span>* outSpans,
                           bool pseudolocalize)
{
    Vector<StringPool::entry_style_span> spanStack;
    String16 curString;
    String16 rawString;
    const char* errorMsg;
    int xliffDepth = 0;
    bool firstTime = true;

    size_t len;
    ResXMLTree::event_code_t code;
    while ((code=inXml->next()) != ResXMLTree::END_DOCUMENT && code != ResXMLTree::BAD_DOCUMENT) {

        if (code == ResXMLTree::TEXT) {
            String16 text(inXml->getText(&len));
            if (firstTime && text.size() > 0) {
                firstTime = false;
                if (text.string()[0] == '@') {
                    // If this is a resource reference, don't do the pseudoloc.
                    pseudolocalize = false;
                }
            }
            if (xliffDepth == 0 && pseudolocalize) {
                std::string orig(String8(text).string());
                std::string pseudo = pseudolocalize_string(orig);
                curString.append(String16(String8(pseudo.c_str())));
            } else {
                curString.append(text);
            }
        } else if (code == ResXMLTree::START_TAG) {
            const String16 element16(inXml->getElementName(&len));
            const String8 element8(element16);

            size_t nslen;
            const uint16_t* ns = inXml->getElementNamespace(&nslen);
            if (ns == NULL) {
                ns = (const uint16_t*)"\0\0";
                nslen = 0;
            }
            const String8 nspace(String16(ns, nslen));
            if (nspace == XLIFF_XMLNS) {
                const int N = sizeof(ALLOWED_XLIFF_ELEMENTS)/sizeof(ALLOWED_XLIFF_ELEMENTS[0]);
                for (int i=0; i<N; i++) {
                    if (element8 == ALLOWED_XLIFF_ELEMENTS[i]) {
                        xliffDepth++;
                        // in this case, treat it like it was just text, in other words, do nothing
                        // here and silently drop this element
                        goto moveon;
                    }
                }
                {
                    SourcePos(String8(fileName), inXml->getLineNumber()).error(
                            "Found unsupported XLIFF tag <%s>\n",
                            element8.string());
                    return UNKNOWN_ERROR;
                }
moveon:
                continue;
            }

            if (outSpans == NULL) {
                SourcePos(String8(fileName), inXml->getLineNumber()).error(
                        "Found style tag <%s> where styles are not allowed\n", element8.string());
                return UNKNOWN_ERROR;
            }

            if (!ResTable::collectString(outString, curString.string(),
                                         curString.size(), false, &errorMsg, true)) {
                SourcePos(String8(fileName), inXml->getLineNumber()).error("%s (in %s)\n",
                        errorMsg, String8(curString).string());
                return UNKNOWN_ERROR;
            }
            rawString.append(curString);
            curString = String16();

            StringPool::entry_style_span span;
            span.name = element16;
            for (size_t ai=0; ai<inXml->getAttributeCount(); ai++) {
                span.name.append(String16(";"));
                const char16_t* str = inXml->getAttributeName(ai, &len);
                span.name.append(str, len);
                span.name.append(String16("="));
                str = inXml->getAttributeStringValue(ai, &len);
                span.name.append(str, len);
            }
            //printf("Span: %s\n", String8(span.name).string());
            span.span.firstChar = span.span.lastChar = outString->size();
            spanStack.push(span);

        } else if (code == ResXMLTree::END_TAG) {
            size_t nslen;
            const uint16_t* ns = inXml->getElementNamespace(&nslen);
            if (ns == NULL) {
                ns = (const uint16_t*)"\0\0";
//.........这里部分代码省略.........

String8::String8(const String16& o)
    : mString(allocFromUTF16(o.string(), o.size()))
{
}

jstring string16ToJstring(JNIEnv* env, String16 string) {
    const char16_t* str = string.string();
    size_t len = string.size();

    return env->NewString(reinterpret_cast<const jchar*>(str), len);
}

static bool getAppInfo(const String8& path, AppInfo& outInfo) {
    memset(&outInfo, 0, sizeof(outInfo));

    AssetManager assetManager;
    int32_t cookie = 0;
    if (!assetManager.addAssetPath(path, &cookie)) {
        return false;
    }

    Asset* asset = assetManager.openNonAsset(cookie, "AndroidManifest.xml", Asset::ACCESS_BUFFER);
    if (asset == NULL) {
        return false;
    }

    ResXMLTree xml;
    if (xml.setTo(asset->getBuffer(true), asset->getLength(), false) != NO_ERROR) {
        delete asset;
        return false;
    }

    const String16 kAndroidNamespace("http://schemas.android.com/apk/res/android");
    const String16 kManifestTag("manifest");
    const String16 kApplicationTag("application");
    const String16 kUsesSdkTag("uses-sdk");
    const String16 kVersionCodeAttr("versionCode");
    const String16 kMultiArchAttr("multiArch");
    const String16 kMinSdkVersionAttr("minSdkVersion");

    ResXMLParser::event_code_t event;
    while ((event = xml.next()) != ResXMLParser::BAD_DOCUMENT &&
            event != ResXMLParser::END_DOCUMENT) {
        if (event != ResXMLParser::START_TAG) {
            continue;
        }

        size_t len;
        const char16_t* name = xml.getElementName(&len);
        String16 name16(name, len);
        if (name16 == kManifestTag) {
            ssize_t idx = xml.indexOfAttribute(
                    kAndroidNamespace.string(), kAndroidNamespace.size(),
                    kVersionCodeAttr.string(), kVersionCodeAttr.size());
            if (idx >= 0) {
                outInfo.versionCode = xml.getAttributeData(idx);
            }

        } else if (name16 == kApplicationTag) {
            ssize_t idx = xml.indexOfAttribute(
                    kAndroidNamespace.string(), kAndroidNamespace.size(),
                    kMultiArchAttr.string(), kMultiArchAttr.size());
            if (idx >= 0) {
                outInfo.multiArch = xml.getAttributeData(idx) != 0;
            }

        } else if (name16 == kUsesSdkTag) {
            ssize_t idx = xml.indexOfAttribute(
                    kAndroidNamespace.string(), kAndroidNamespace.size(),
                    kMinSdkVersionAttr.string(), kMinSdkVersionAttr.size());
            if (idx >= 0) {
                uint16_t type = xml.getAttributeDataType(idx);
                if (type >= Res_value::TYPE_FIRST_INT && type <= Res_value::TYPE_LAST_INT) {
                    outInfo.minSdkVersion = xml.getAttributeData(idx);
                } else if (type == Res_value::TYPE_STRING) {
                    String8 minSdk8(xml.getStrings().string8ObjectAt(idx));
                    char* endPtr;
                    int minSdk = strtol(minSdk8.string(), &endPtr, 10);
                    if (endPtr != minSdk8.string() + minSdk8.size()) {
                        fprintf(stderr, "warning: failed to parse android:minSdkVersion '%s'\n",
                                minSdk8.string());
                    } else {
                        outInfo.minSdkVersion = minSdk;
                    }
                } else {
                    fprintf(stderr, "warning: unrecognized value for android:minSdkVersion.\n");
                }
            }
        }
    }

    delete asset;
    return true;
}

/**
 * Converts characters so they look like they've been localized.
 *
 * Note: This leaves escape sequences untouched so they can later be
 * processed by ResTable::collectString in the normal way.
 */
String16
pseudolocalize_string(const String16& source)
{
    const char16_t* s = source.string();
    String16 result;
    const size_t I = source.size();
    for (size_t i=0; i<I; i++) {
        char16_t c = s[i];
        if (c == '\\') {
            // Escape syntax, no need to pseudolocalize
            if (i<I-1) {
                result += String16("\\");
                i++;
                c = s[i];
                switch (c) {
                    case 'u':
                        // this one takes up 5 chars
                        result += String16(s+i, 5);
                        i += 4;
                        break;
                    case 't':
                    case 'n':
                    case '#':
                    case '@':
                    case '?':
                    case '"':
                    case '\'':
                    case '\\':
                    default:
                        result.append(&c, 1);
                        break;
                }
            } else {
                result.append(&c, 1);
            }
        } else if (c == '%') {
            // Placeholder syntax, no need to pseudolocalize
            result += k_placeholder_open;
            bool end = false;
            result.append(&c, 1);
            while (!end && i < I) {
                ++i;
                c = s[i];
                result.append(&c, 1);
                if (is_possible_normal_placeholder_end(c)) {
                    end = true;
                } else if (c == 't') {
                    ++i;
                    c = s[i];
                    result.append(&c, 1);
                    end = true;
                }
            }
            result += k_placeholder_close;
        } else if (c == '<' || c == '&') {
            // html syntax, no need to pseudolocalize
            bool tag_closed = false;
            while (!tag_closed && i < I) {
                if (c == '&') {
                    String16 escape_text;
                    escape_text.append(&c, 1);
                    bool end = false;
                    size_t htmlCodePos = i;
                    while (!end && htmlCodePos < I) {
                        ++htmlCodePos;
                        c = s[htmlCodePos];
                        escape_text.append(&c, 1);
                        // Valid html code
                        if (c == ';') {
                            end = true;
                            i = htmlCodePos;
                        }
                        // Wrong html code
                        else if (!((c == '#' ||
                                 (c >= 'a' && c <= 'z') ||
                                 (c >= 'A' && c <= 'Z') ||
                                 (c >= '0' && c <= '9')))) {
                            end = true;
                        }
                    }
                    result += escape_text;
                    if (escape_text != String16("&lt;")) {
                        tag_closed = true;
                    }
                    continue;
                }
                if (c == '>') {
                    tag_closed = true;
                    result.append(&c, 1);
                    continue;
                }
                result.append(&c, 1);
                i++;
                c = s[i];
//.........这里部分代码省略.........