FILECOIN_MAINNET_REG top-level constant
String
const FILECOIN_MAINNET_REG
COMMON_REG: ^[?()=#~+%@.:\-_a-zA-Z0-9]+$
Implementation
const String FILECOIN_MAINNET_REG =
r'^(f[1-4][qpzry9x8gf2tvdw0s3jn54khce6mua7l]+)|(f410[a-zA-Z0-9]+)$';