Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12345]

▼Nsearx
►Nanswerers
►N_core
CAnswerer
CAnswererInfo
CAnswerStorage
CModuleAnswerer
►Nrandom
CSXNGAnswerer
►Nstatistics
CSXNGAnswerer
►Nbotdetection
►Nconfig
CConfig
CFALSE
CSchemaIssue
►Nenginelib
►Ntraits
CEngineTraits
CEngineTraitsEncoder
CEngineTraitsMap
CEngine
►Nengines	::1337x
►Nwikidata
CWDAmountAttribute
CWDArticle
CWDAttribute
CWDDateAttribute
CWDGeoAttribute
CWDImageAttribute
CWDLabelAttribute
CWDURLAttribute
►Nexceptions
CSearxEngineAccessDeniedException
CSearxEngineAPIException
CSearxEngineCaptchaException
CSearxEngineException
CSearxEngineResponseException
CSearxEngineTooManyRequestsException
CSearxEngineXPathException
CSearxException
CSearxParameterException
CSearxSettingsException
CSearxXPathSyntaxException
►Nextended_types
CSXNG_Request
CSXNG_Response
►Nfavicons
►Ncache
CFaviconCache
CFaviconCacheConfig
CFaviconCacheMEM
CFaviconCacheNull
CFaviconCacheSQLite
CFaviconCacheStats
►Nconfig
C_FaviconConfig
CFaviconConfig
►Nproxy
CFaviconProxyConfig
►Nflaskfix
CReverseProxyPathFix
►Ninfopage
CInfoPage
CInfoPageSet
►Nmetrics
►Nerror_recorder
CErrorContext
►Nmodels
CCounterStorage
CHistogram
CHistogramStorage
CVoidCounterStorage
CVoidHistogram
►Nnetwork
►Nclient
CAsyncHTTPTransportNoHttp
CAsyncProxyTransportFixed
►Nnetwork
CNetwork
CRequest
►Nopenmetrics
COpenMetricsFamily
►Nplugins
►N_core
CModulePlugin
CPlugin
CPluginInfo
CPluginStorage
►Nhash_plugin
CSXNGPlugin
►Nself_info
CSXNGPlugin
►Npreferences
CBooleanChoices
CBooleanSetting
CClientPref
CEnginesSetting
CEnumStringSetting
CMapSetting
CMultipleChoiceSetting
CPluginsSetting
CPreferences
CSearchLanguageSetting
CSetSetting
CSetting
CStringSetting
CValidationException
►Nquery
CBangParser
CExternalBangParser
CFeelingLuckyParser
CLanguageParser
CQueryPartParser
CRawTextQuery
CTimeoutParser
►Nresult_types
►N_base
CLegacyResult
CMainResult
CResult
►Nanswer
CAnswer
CAnswerSet
CBaseAnswer
►CTranslations
CItem
CEngineResults
►CResultList
Ctypes
►Nresults
CResultContainer
CTiming
CUnresponsiveEngine
►Nsearch
►Nchecker
►Nbackground
CCheckerErr
CCheckerOk
CCheckerOther
CEngineErr
CEngineOk
►Nimpl
CChecker
CCheckerTests
CResultContainerTests
CTestResults
►Nmodels
CEngineRef
CSearchQuery
►Nprocessors
►Nabstract
CEngineProcessor
CSuspendedStatus
►Noffline
COfflineProcessor
►Nonline
COnlineProcessor
►Nonline_currency
COnlineCurrencyProcessor
►Nonline_dictionary
COnlineDictionaryProcessor
►Nonline_url_search
COnlineUrlSearchProcessor
CSearch
CSearchWithPlugins
►Nsettings_defaults
CSettingsBytesValue
CSettingsDirectoryValue
CSettingSublistValue
CSettingsValue
►Nsqlitedb
CSQLiteAppl
CSQLiteProperties
►Nutils
C_HTMLTextExtractor
C_HTMLTextExtractorException
C_NotSetClass
►Nwebutils
CCSVWriter
CJSONEncoder