channelPattern property
Channel pattern - matches channel patterns with wildcards Format: /segment1/segment2/* or /segment1/** or /segment1/*/segment2
Implementation
static final RegExp channelPattern = RegExp(
r'^(\/(((([a-z]|[A-Z])|[0-9])|(\-|\_|\!|\~|\(|\)|\$|\@)))+|\*{1,2})+$',
);