MediaWiki:Wikieditor-toolbar-tool-replace-invalidregex

The regular expression you entered is invalid: $1

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• Python API
• API_Modules
  • Mathematics
    • RMath
    • RVector2
    • RVector3
    • RVector4
    • RMatrix3
    • RQuaternion
    • RTransform
    • RRgb
    • RColor
  • System
    • RStatus
    • RTime
    • RVariant
    • RFileIO
    • RGlobal
    • RPyTimer
    • RApplication
  • Scene
    • RIBase
    • RIObject
    • RINode
    • RIMaterialComponent
    • RIProp
    • RIAvatar
    • RICamera
    • RIParticle
    • RILight
    • RISpotLight
    • RIPointLight
    • RIDirectionalLight
    • RScene
  • Animation
    • RDataBlock
    • RKey
    • RControl
    • RFloatkey
    • RFloatControl
    • RTransformkey
    • RTransformControl
    • RlClip
    • RISkeletonComponent
    • RVisemeSmoothOption
    • RIVisemeComponent
    • RIMorphComponent
    • RIHikEffectorComponent
    • RIFaceComponent
  • MotionCapture
    • RPositionSetting
    • RRotationSetting
    • RDeviceSetting
    • RIDeviceBase
    • RBodySetting
    • RIBodyDevice
    • RHandSetting
    • RIHandDevice
    • RFacialSetting
    • RIFacialDevice
    • RIMocapManager
  • Events
    • RCallback
    • RWinMessageCallback
    • RDialogCallback
    • REventCallback
    • REventHandler
    • RPyTimerCallback
    • RIEventListener
  • UI
    • RIDialog
    • RIDockWidget
    • RUi
  • Media
    • RIAudioObject
    • RAudioRecorder
    • RAudio
    • RAudioRecorderCallback
  • Networking
    • RTcpCallback
    • RTcpClient
    • RUdpCallback
    • RUdpClient