> Common Lisp has plenty of well-defined macros with simple patterns any tool could learn If the tool has to learn (i.e. be written to know about, yes?) these

> Common Lisp has plenty of well-defined macros with simple patterns any tool could learn If the tool has to learn (i.e. be written to know about, yes?) these patterns, then it will not know about those you wrote. However, as someone else has pointed out, the compile-time execution of macros actually does make them accessible to a sufficiently sophisticated "grep", the kind of tool shurcooL asked for.