<?xml version="1.0"?> <rule version="1"> <!-- This should ideally be checked by lib/checkstl.cpp --> <pattern> \. find \( "[^"]+?" \) == \d+ </pattern> <message> <id>UselessSTDStringFind</id> <severity>performance</severity> <summary>When looking for a string at a fixed position compare is faster.</summary> </message> </rule>