Regular Expression Pocket Reference by Tony Stubblebine The unconfirmed error reports are from readers. They have not yet been approved or disproved by the author or editor and represent solely the opinion of the reader. Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification This page was updated November 14, 2003. UNCONFIRMED errors and comments from readers: {33} Table 16... the entry for "\W"; \W is listed as [\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}\p{Pc}] when it should be: [^\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}\p{Pc}] (i.e. the ^ (caret) character is missing from the beginning). {55} Table 30 (continued) half way down; "{n}+ Match at least n times and never backtrack" {n} is for a fixed number of times, while {n,} is for multiple times.