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Diffstat (limited to 'doc/regexp.rdoc')
| -rw-r--r-- | doc/regexp.rdoc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/regexp.rdoc b/doc/regexp.rdoc index 59f1c45651..26779acb1a 100644 --- a/doc/regexp.rdoc +++ b/doc/regexp.rdoc @@ -121,7 +121,9 @@ The following metacharacters also behave like character classes: * <tt>/./</tt> - Any character except a newline. * <tt>/./m</tt> - Any character (the +m+ modifier enables multiline mode) * <tt>/\w/</tt> - A word character (<tt>[a-zA-Z0-9_]</tt>) -* <tt>/\W/</tt> - A non-word character (<tt>[^a-zA-Z0-9_]</tt>) +* <tt>/\W/</tt> - A non-word character (<tt>[^a-zA-Z0-9_]</tt>). + Please take a look at {Bug #4044}[https://bugs.ruby-lang.org/issues/4044] if + using <tt>/\W/</tt> with the <tt>/i</tt> modifier. * <tt>/\d/</tt> - A digit character (<tt>[0-9]</tt>) * <tt>/\D/</tt> - A non-digit character (<tt>[^0-9]</tt>) * <tt>/\h/</tt> - A hexdigit character (<tt>[0-9a-fA-F]</tt>) |