From e8a9ddc26b925d321d4aeb76eec2a3b4f2d2c44a Mon Sep 17 00:00:00 2001
From: piux2 <90544084+piux2@users.noreply.github.com>
Date: Fri, 2 Dec 2022 14:47:44 -0800
Subject: [PATCH] Compatible native token denom

for Smart Contracts to issue native tokens and easy IBC adoption

#393
---
 pkgs/std/coin.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/std/coin.go b/pkgs/std/coin.go
index cab4dd7a809..fa226693efa 100644
--- a/pkgs/std/coin.go
+++ b/pkgs/std/coin.go
@@ -617,8 +617,9 @@ func (coins Coins) Sort() Coins {
 // Parsing
 
 var (
-	// Denominations can be 3 ~ 16 characters long.
-	reDnmString = `[a-z][a-z0-9]{2,15}`
+	// Denominations can be 3 ~ 128 characters long and support letters, followed by either
+	// a letter, a number or a separator ('/', ':', '.', '_' or '-').
+	reDnmString = `[a-zA-Z][a-zA-Z0-9/:._-]{2,127}`
 	reAmt       = `[[:digit:]]+`
 	reDecAmt    = `[[:digit:]]*\.[[:digit:]]+`
 	reSpc       = `[[:space:]]*`