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From: 2QdxY4RzWzUUiLuE@potatochowder.com
To: help-gnu-emacs@gnu.org
Subject: Re: The `^L' appeared in built-in help.
Date: Mon, 5 Jul 2021 21:19:42 -0700	[thread overview]
Message-ID: <YOPZ3oKzJXoPqJd2@scrozzle> (raw)
In-Reply-To: <CAGP6PO+pt6iW+9g0nEDmrOSRYr4v6OrQEYR16PAZngRQUBfndg@mail.gmail.com>

On 2021-07-06 at 10:34:36 +0800,
Hongyi Zhao <hongyi.zhao@gmail.com> wrote:

> I noticed so many `^L' appeared in Emacs' built-in help. According to
> the ascii document shown below, this should mean '\f' (form feed):
> 
> $ man ascii | grep ' L$'
>        014   12    0C    FF  '\f' (form feed)        114   76    4C    L
> 
> But I also noticed that this control character is not used evenly
> throughout the document.
> 
> Any hints for this phenomenon?

When printed (yes, printed, on dead trees), those are page breaks (i.e.,
a command to continue printing on a new page).  Also, Emacs has "page"
commands (e.g., count-lines-page, forward-page) that work on "page"s of
text between page breaks.

This seems to hage come up recently as well; perhaps this list's archive
has more information.



  parent reply	other threads:[~2021-07-06  4:19 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-06  2:34 The `^L' appeared in built-in help Hongyi Zhao
2021-07-06  2:46 ` [External] : " Drew Adams
2021-07-06  2:53   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 14:56     ` Drew Adams
2021-07-06 15:56       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 17:04         ` Drew Adams
2021-07-06 17:12           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  2:51 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  3:44   ` Hongyi Zhao
2021-07-06  4:06     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  8:26       ` Hongyi Zhao
2021-07-06  8:31         ` Hongyi Zhao
2021-07-06  9:12           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  9:40             ` Hongyi Zhao
2021-07-06 10:06               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 11:07                 ` Hongyi Zhao
2021-07-06 11:22                   ` Hongyi Zhao
2021-07-06 11:55                     ` Hongyi Zhao
2021-07-06 12:09                       ` Hongyi Zhao
2021-07-06 16:13                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 16:12                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-07  3:03                       ` Hongyi Zhao
2021-07-13  3:06                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 16:12                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-07  1:40                     ` Hongyi Zhao
2021-07-13  3:07                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-18  6:34                         ` Hongyi Zhao
2021-07-19  0:27                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-20  1:27       ` Hongyi Zhao
2021-07-20  1:42         ` [External] : " Drew Adams
2021-07-20  2:02           ` Hongyi Zhao
2021-07-20  4:28             ` Drew Adams
2021-07-20  5:56               ` Hongyi Zhao
2021-07-20 10:29                 ` Hongyi Zhao
2021-07-20 14:48                   ` Drew Adams
2021-07-20 16:28                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21  2:03                     ` Hongyi Zhao
2021-07-21  2:26                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21  4:44                         ` Drew Adams
2021-07-21  7:15                           ` Regexp for matching control character, say, FORM FEED. (Was: Re: The `^L' appeared in built-in help.) Hongyi Zhao
2021-07-21 17:08                             ` [External] : " Drew Adams
2021-07-22  1:13                               ` Hongyi Zhao
2021-07-22  1:28                                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  1:39                                   ` Drew Adams
2021-07-22  1:42                                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  3:52                                       ` Drew Adams
2021-07-22  4:14                                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  8:04                                           ` Hongyi Zhao
2021-07-22 13:56                                           ` Hongyi Zhao
2021-07-22 14:38                                             ` tomas
2021-07-22 14:53                                               ` Hongyi Zhao
2021-07-22 15:01                                                 ` tomas
2021-07-22 15:21                                                   ` Hongyi Zhao
2021-07-22 22:07                                                 ` [External] : Re: Regexp for matching control character, say, FORM FEED Michael Heerdegen
2021-07-23  1:09                                                   ` Hongyi Zhao
2021-07-22 17:07                                             ` [External] : Re: Regexp for matching control character, say, FORM FEED. (Was: Re: The `^L' appeared in built-in help.) Drew Adams
2021-07-22 17:11                                               ` tomas
2021-08-01  2:41                                                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  8:06                                 ` tomas
2021-07-22  9:45                                   ` Hongyi Zhao
2021-07-22 10:06                                     ` tomas
2021-07-22 10:27                                       ` Hongyi Zhao
2021-07-22 12:14                                         ` tomas
2021-08-01  2:31                                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  4:19 ` 2QdxY4RzWzUUiLuE [this message]
2021-07-06  4:29   ` The `^L' appeared in built-in help Emanuel Berg via Users list for the GNU Emacs text editor

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