ensureColons static method
Wrap colons on both sides of emoji name. So, 'heart' will become ':heart:'.
Implementation
static String ensureColons(String name) {
String res = name;
if (!name.startsWith(EmojiConst.charColon, 0)) {
res = EmojiConst.charColon + name;
}
if (!name.endsWith(EmojiConst.charColon)) {
res += EmojiConst.charColon;
}
return res;
}