<description>Any &quot;.search&quot; file can be opened as search engine file, each line of which has one of the following formats:
[Engine name]:[url without '%s' inside]
[Engine name]:[url with '%s' as keyword]
[Engine name]:POST:[post params with '%s' as keyword]:[url]
[Engine name]:[Extra request headers]:[post params with '%s' as keyword]:[url]
[Extra request headers] Ex. &quot;X-Forwarded-For;8.8.8.8&quot; when [post params] is empty, the url should have '%s' as keyword. Ex. bingUS engine w/ chatgpt Limitations (they are here for performance reasons):</description>