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| -rw-r--r-- | man/grab.1 | 17 |
1 files changed, 17 insertions, 0 deletions
@@ -209,6 +209,23 @@ filters out the specific number 1337. As you may use whichever delimiter you like, the following is also valid: .Pp .Dl x|[0\-9]+| g.3. G#^1337# +.Pp +Operators are not allowed to take empty regular expression arguments with +one exception: +.Sq h . +When given an empty regular expression argument, +the +.Sq h +operator assumes the same regular expression as the previous operator. +This allows you to avoid duplication in the common case where a user +wishes to highlight text matched by a +.Sq g +operator. +The following example pattern selects all words that have a capital +letter, +and highlights the capital letter(s): +.Pp +.Dl x/\ew+/ g/[A\-Z]/ h// .Sh ENVIRONMENT .Bl -tag -width GRAB_COLORS .It Ev GRAB_COLORS |