3 ms·

> I end up learning something wacky You pretty much summed up the problem :)

• yellowapple 10y ago
  Guilty as charged :) I've been working on a lexer/parser/interpreter/compiler/whatever for a pet programming language project, and in the process of trying to figure out how to keep track of line numbers in the source files I'm parsing, I inadvertently discovered that Perl already tracks that for me (in "$."). Who knew? (I mean, Larry Wall obviously knew, of course, but whatever.)