C++ AString::find方法代码示例

bool ARTSPConnection::parseAuthMethod(const sp<ARTSPResponse> &response) {
    ssize_t i = response->mHeaders.indexOfKey("www-authenticate");

    if (i < 0) {
        return false;
    }

    AString value = response->mHeaders.valueAt(i);

    if (!strncmp(value.c_str(), "Basic", 5)) {
        mAuthType = BASIC;
    } else {
#if !defined(HAVE_ANDROID_OS)
        // We don't have access to the MD5 implementation on the simulator,
        // so we won't support digest authentication.
        return false;
#endif

        CHECK(!strncmp(value.c_str(), "Digest", 6));
        mAuthType = DIGEST;

        i = value.find("nonce=");
        CHECK_GE(i, 0);
        CHECK_EQ(value.c_str()[i + 6], '\"');
        ssize_t j = value.find("\"", i + 7);
        CHECK_GE(j, 0);

        mNonce.setTo(value, i + 7, j - i - 7);
    }

    return true;
}

bool ARTSPConnection::receiveRTSPRequest() {
    AString requestLine;
	LOGI(LOG_TAG,"start receiveLine ......\n");
    if (!receiveLine(&requestLine)) {
        return false;
    }
//	LOGI(LOG_TAG,"receiveLine OK\n");
    sp<AMessage>  request = new AMessage(kWhatRequest,mhandlerID);
	request->setInt32("SessionID",mSessionID);
	LOGI(LOG_TAG,"request->setInt32 SessionID %d\n",mSessionID);
    LOGI(LOG_TAG,"request: %s\n", requestLine.c_str());

    ssize_t space1 = requestLine.find(" ");//寻找空格
    if (space1 < 0) {
        return false;
    }
    ssize_t space2 = requestLine.find(" ", space1 + 1);
    if (space2 < 0) {
        return false;
    }

    AString Method(requestLine.c_str(), space1);
	request->setString("Method",Method.c_str());
	AString URI(requestLine,space1+1,space2-space1-1);
	request->setString("URI",URI.c_str());
    AString line;
    for (;;) {
        if (!receiveLine(&line)) {
            break;
        }

        if (line.empty()) {
            break;
        }

        ssize_t colonPos = line.find(":");
        if (colonPos < 0) {
            // Malformed header line.
            return false;
        }

        AString key(line, 0, colonPos);
        key.trim();
       // key.tolower();

        line.erase(0, colonPos + 1);
        line.trim();
		
        LOGI(LOG_TAG,"line: %s:%s\n", key.c_str(),line.c_str());

	    request->setString(key.c_str(),line.c_str());	
    }
	LOGI(LOG_TAG,"Post the request to handler\n");
    request->post();//将请求消息发送给uplayer 处理
	return OK;
}

static void GetMethodAndURL(
        const AString &request, AString *method, AString *url) {
    ssize_t space1 = request.find(" ");
    CHECK_GE(space1, 0);

    ssize_t space2 = request.find(" ", space1 + 1);
    CHECK_GE(space2, 0);

    method->setTo(request, 0, space1);
    url->setTo(request, space1 + 1, space2 - space1);
}

// static
status_t M3UParser::parseStreamInf(
        const AString &line, sp<AMessage> *meta) {
    ssize_t colonPos = line.find(":");

    if (colonPos < 0) {
        return ERROR_MALFORMED;
    }

    size_t offset = colonPos + 1;

    while (offset < line.size()) {
        ssize_t end = line.find(",", offset);
        if (end < 0) {
            end = line.size();
        }

        AString attr(line, offset, end - offset);
        attr.trim();

        offset = end + 1;

        ssize_t equalPos = attr.find("=");
        if (equalPos < 0) {
            continue;
        }

        AString key(attr, 0, equalPos);
        key.trim();

        AString val(attr, equalPos + 1, attr.size() - equalPos - 1);
        val.trim();

        LOGV("key=%s value=%s", key.c_str(), val.c_str());

        if (!strcasecmp("bandwidth", key.c_str())) {
            const char *s = val.c_str();
            char *end;
            unsigned long x = strtoul(s, &end, 10);

            if (end == s || *end != '\0') {
                // malformed
                continue;
            }

            if (meta->get() == NULL) {
                *meta = new AMessage;
            }
            (*meta)->setInt32("bandwidth", x);
        }
    }

    return OK;
}

static void GetMethodAndURL(
        const AString &request, AString *method, AString *url) {
    ssize_t space1 = request.find(" ");
    CHECK_GE(space1, 0);

    ssize_t space2 = request.find(" ", space1 + 1);
    CHECK_GE(space2, 0);

    method->setTo(request, 0, space1);
#ifndef ANDROID_DEFAULT_CODE 
    url->setTo(request, space1 + 1, space2 - space1 - 1);
#else
    url->setTo(request, space1 + 1, space2 - space1);
#endif // #ifndef ANDROID_DEFAULT_CODE
}

bool ARTPSession::validateMediaFormat(size_t index, unsigned *port) const {
    AString format;
    mDesc->getFormat(index, &format);

    ssize_t i = format.find(" ");
    if (i < 0) {
        return false;
    }

    ++i;
    size_t j = i;
    while (isdigit(format.c_str()[j])) {
        ++j;
    }
    if (format.c_str()[j] != ' ') {
        return false;
    }

    AString portString(format, i, j - i);

    char *end;
    unsigned long x = strtoul(portString.c_str(), &end, 10);
    if (end == portString.c_str() || *end != '\0') {
        return false;
    }

    if (x == 0 || x > 65535) {
        return false;
    }

    *port = x;

    return true;
}

void cBrewingRecipes::ReloadRecipes(void)
{
	ClearRecipes();
	LOGD("Loading brewing recipes...");

	std::ifstream f(BREWING_RECIPE_FILE, std::ios::in);
	if (!f.good())
	{
		LOG("Could not open the brewing recipes file \"%s\". No brewing recipes are available.", BREWING_RECIPE_FILE);
		return;
	}

	unsigned int LineNum = 0;
	AString ParsingLine;

	while (std::getline(f, ParsingLine))
	{
		LineNum++;
		// Remove comments from the line:
		size_t FirstCommentSymbol = ParsingLine.find('#');
		if (FirstCommentSymbol != AString::npos)
		{
			ParsingLine.erase(ParsingLine.begin() += static_cast<long>(FirstCommentSymbol), ParsingLine.end());
		}

		if (ParsingLine.empty())
		{
			continue;
		}
		AddRecipeFromLine(ParsingLine, LineNum);
	}  // while (getline(ParsingLine))

	LOG("Loaded " SIZE_T_FMT " brewing recipes", m_pState->Recipes.size());
}

bool splitString(const AString &s, const AString &delimiter, AString *s1, AString *s2) {
    ssize_t pos = s.find(delimiter.c_str());
    if (pos < 0) {
        return false;
    }
    *s1 = AString(s, 0, pos);
    *s2 = AString(s, pos + 1, s.size() - pos - 1);
    return true;
}

// static
status_t M3UParser::parseByteRange(
        const AString &line, uint64_t curOffset,
        uint64_t *length, uint64_t *offset) {
    ssize_t colonPos = line.find(":");

    if (colonPos < 0) {
        return ERROR_MALFORMED;
    }

    ssize_t atPos = line.find("@", colonPos + 1);

    AString lenStr;
    if (atPos < 0) {
        lenStr = AString(line, colonPos + 1, line.size() - colonPos - 1);
    } else {
        lenStr = AString(line, colonPos + 1, atPos - colonPos - 1);
    }

    lenStr.trim();

    const char *s = lenStr.c_str();
    char *end;
    *length = strtoull(s, &end, 10);

    if (s == end || *end != '\0') {
        return ERROR_MALFORMED;
    }

    if (atPos >= 0) {
        AString offStr = AString(line, atPos + 1, line.size() - atPos - 1);
        offStr.trim();

        const char *s = offStr.c_str();
        *offset = strtoull(s, &end, 10);

        if (s == end || *end != '\0') {
            return ERROR_MALFORMED;
        }
    } else {
        *offset = curOffset;
    }

    return OK;
}

void ARTSPConnection::onSendRequest(const sp<AMessage> &msg) {
    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

    if (mState != CONNECTED) {
        reply->setInt32("result", -ENOTCONN);
        reply->post();
        return;
    }

    AString request;
    CHECK(msg->findString("request", &request));

    // Find the boundary between headers and the body.
    ssize_t i = request.find("\r\n\r\n");
    CHECK_GE(i, 0);

    int32_t cseq = mNextCSeq++;

    AString cseqHeader = "CSeq: ";
    cseqHeader.append(cseq);
    cseqHeader.append("\r\n");

    request.insert(cseqHeader, i + 2);

    LOGV("%s", request.c_str());

    size_t numBytesSent = 0;
    while (numBytesSent < request.size()) {
        ssize_t n =
            send(mSocket, request.c_str() + numBytesSent,
                 request.size() - numBytesSent, 0);

        if (n == 0) {
            // Server closed the connection.
            LOGE("Server unexpectedly closed the connection.");

            reply->setInt32("result", ERROR_IO);
            reply->post();
            return;
        } else if (n < 0) {
            if (errno == EINTR) {
                continue;
            }

            LOGE("Error sending rtsp request.");
            reply->setInt32("result", -errno);
            reply->post();
            return;
        }

        numBytesSent += (size_t)n;
    }

    mPendingRequests.add(cseq, reply);
}

void cFurnaceRecipe::ReloadRecipes(void)
{
	ClearRecipes();
	LOGD("Loading furnace recipes...");

	std::ifstream f(FURNACE_RECIPE_FILE, std::ios::in);
	if (!f.good())
	{
		LOG("Could not open the furnace recipes file \"%s\". No furnace recipes are available.", FURNACE_RECIPE_FILE);
		return;
	}

	unsigned int LineNum = 0;
	AString ParsingLine;

	while (std::getline(f, ParsingLine))
	{
		LineNum++;
		if (ParsingLine.empty())
		{
			continue;
		}

		// Remove comments from the line:
		size_t FirstCommentSymbol = ParsingLine.find('#');
		if ((FirstCommentSymbol != AString::npos) && (FirstCommentSymbol != 0))
		{
			ParsingLine.erase(ParsingLine.begin() + static_cast<const long>(FirstCommentSymbol), ParsingLine.end());
		}

		switch (ParsingLine[0])
		{
			case '#':
			{
				// Comment
				break;
			}

			case '!':
			{
				AddFuelFromLine(ParsingLine, LineNum);
				break;
			}

			default:
			{
				AddRecipeFromLine(ParsingLine, LineNum);
				break;
			}
		}  // switch (ParsingLine[0])
	}  // while (getline(ParsingLine))

	LOG("Loaded " SIZE_T_FMT " furnace recipes and " SIZE_T_FMT " fuels", m_pState->Recipes.size(), m_pState->Fuel.size());
}

bool AXmlElement::isNameEquals(const AString& nameattr) const
{
  size_t pos = nameattr.find('@');
  if (AConstant::npos == pos)
    return m_Name.equals(nameattr);
  else
  {
    AString name;
    AString attr;
    nameattr.peek(name, 0, pos);
    nameattr.peek(attr, pos);

    return (m_Name.equals(name) && m_Attributes.exists(attr));
  }
}

/** 查找指定的文件
@Param 存储文件信息的列表
@Param 用于匹配文件名的字符
@Param 遍历时是否递归
@Param 是否遍历目录
*/
void FZipFilePack::FindFiles( VFileInfoList& fileList,const AString& pattern,
                                bool bRecurse,bool bDir )
{
    VFileInfoList::iterator itr;
    VFileInfoList::iterator end = m_FileInfos.end();

    // 如果要查找的字符包含目录，则做一个全匹配
    bool full_match = (pattern.find('/') != AString::npos ||
        pattern.find('\\') != AString::npos );

    // 获取关键字的目录
    AString directory;
    if( full_match )
    {
        size_t pos1 = pattern.rfind( '/' );
        size_t pos2 = pattern.rfind( '\\' );

        if( pos1 == AString::npos || ((pos2 != AString::npos) && pos1 < pos2) )
            pos1 = pos2;

        if( pos1 != AString::npos )
            directory = pattern.substr( 0,pos1+1 );
    }

    // 遍历文件信息
    for( itr=m_FileInfos.begin();itr!=end;itr++ )
    {
        if( ((itr->nCompressedSize != (size_t)-1) ||
            (itr->nCompressedSize == (size_t)-1 && bDir)) &&
            (bRecurse || itr->sPath == directory) )
        {
            if( AStringUtil::Match(full_match ? itr->sFileName : itr->sBaseName,pattern) )
                fileList.push_back( *itr );
        }
    }
}

cPiece::cVerticalStrategyPtr CreateVerticalStrategyFromString(const AString & a_StrategyDesc, bool a_LogWarnings)
{
	// Break apart the strategy class, the first parameter before the first pipe char:
	auto idxPipe = a_StrategyDesc.find('|');
	if (idxPipe == AString::npos)
	{
		idxPipe = a_StrategyDesc.length();
	}
	AString StrategyClass = a_StrategyDesc.substr(0, idxPipe);

	// Create a strategy class based on the class string:
	cPiece::cVerticalStrategyPtr Strategy;
	if (NoCaseCompare(StrategyClass, "Fixed") == 0)
	{
		Strategy = std::make_shared<cVerticalStrategyFixed>();
	}
	else if (NoCaseCompare(StrategyClass, "Range") == 0)
	{
		Strategy = std::make_shared<cVerticalStrategyRange>();
	}
	else if (NoCaseCompare(StrategyClass, "TerrainTop") == 0)
	{
		Strategy = std::make_shared<cVerticalStrategyTerrainTop>();
	}
	else if (NoCaseCompare(StrategyClass, "TerrainOrOceanTop") == 0)
	{
		Strategy = std::make_shared<cVerticalStrategyTerrainOrOceanTop>();
	}
	else
	{
		return nullptr;
	}

	// Initialize the strategy's parameters:
	AString Params;
	if (idxPipe < a_StrategyDesc.length())
	{
		Params = a_StrategyDesc.substr(idxPipe + 1);
	}
	if (!Strategy->InitializeFromString(Params, a_LogWarnings))
	{
		return nullptr;
	}

	return Strategy;
}

void cCompositeChat::AddStyle(AString & a_Style, const AString & a_AddStyle)
{
	if (a_AddStyle.empty())
	{
		return;
	}
	if (a_AddStyle[0] == '@')
	{
		size_t idx = a_Style.find('@');
		if ((idx != AString::npos) && (idx != a_Style.length()))
		{
			a_Style.erase(idx, 2);
		}
		a_Style.append(a_AddStyle);
		return;
	}
	a_Style.append(a_AddStyle);
}