The handler for the merchant request in the source code. It sends one of these greetings if the merchant has items for sale via Message_StringID, which references predefined client strings in eqstr_us.txt:
1145 Hello there, %3. How about a nice %4?
1146 Greetings, %3. You look like you could use a %4.
1147 Hi there %3, just browsing? Have you seen the %4 I just got in?
1148 Welcome to my shop, %3. You would probably find a %4 handy.
If the merchant is empty, it just says:
1144 Welcome to my shop, %3.
https://github.com/EQEmu/Server/blob...ocess.cpp#L917