SiGML Docs This repo contains Unofficial Documentation for the SiGML Language. SiGML (Signing Gesture Markup Language) is a XML application that enables transcription of sign language gestures. SiGML is further extended by SiGML Extensions. This Repository is currently work in progress. List of Elements Structure for HNS_sign Structure for Hamgestural_sign Structure for animdata_sign Structure for everything kindly create issues for any problem or suggestion.