Meino Christian Cramer wrote:
From: Charles E Campbell Jr <[EMAIL PROTECTED]>
Subject: Re: Commenting out TeX-text line by line in V-mode
Date: Thu, 16 Nov 2006 13:34:16 -0500
How about
:[range]g/\S/s/^/%/
which means: over the selected range (which may be the visual range),
on all lines that
have some non-white-space character on them, insert a leading %.
OK, here's a more detailed explanation:
:[range] over the selected lines, which with visual selection
will appear as '<,'> .
Those are marks set by the visual selection.
g/pattern/cmd for any lines which match the given pattern, in this
case \S , do the specified cmd.
So, the cmd is performed for any line that has a
non-whitespace character in it.
Thus, empty lines and lines with just whitespace
(tabs and spaces) will not match.
Now, the aforementioned cmd is
s/^/%/ Substitute a % at the beginning of the current line.
What you asked for was to do something (comment out lines) given a
condition (that the line must not be empty). So the :g/pattern/cmd
allows one to do a command (s/^/%/) only when the line matched a pattern
(that implied that the line was not empty).
Regards,
Chip Campbell
