Function has_lightning_prefix

common/bolt11.c:729–737

}

static bool has_lightning_prefix(const char *invstring)
{
	/* BOLT #11:
	 *
	 * If a URI scheme is desired, the current recommendation is to either
	 * use 'lightning:' as a prefix before the BOLT-11 encoding */
	return (strstarts(invstring, "lightning:") ||
		strstarts(invstring, "LIGHTNING:"));
}

const char *to_canonical_invstr(const tal_t *ctx,
				const char *invstring)