FM / doc

/usr/share/vim/vim80/doc

Name	Size	Mode	Actions
arabic.txt	11936	0644	edit dl rm
autocmd.txt	65402	0644	edit dl rm
change.txt	74877	0644	edit dl rm
channel.txt	30819	0644	edit dl rm
cmdline.txt	47283	0644	edit dl rm
debug.txt	7182	0644	edit dl rm
debugger.txt	5744	0644	edit dl rm
develop.txt	22344	0644	edit dl rm
diff.txt	16525	0644	edit dl rm
digraph.txt	62123	0644	edit dl rm
editing.txt	73176	0644	edit dl rm
eval.txt	444462	0644	edit dl rm
farsi.txt	9703	0644	edit dl rm
filetype.txt	26647	0644	edit dl rm
fold.txt	23694	0644	edit dl rm
ft_ada.txt	18247	0644	edit dl rm
ft_rust.txt	9526	0644	edit dl rm
ft_sql.txt	30694	0644	edit dl rm
gui.txt	45592	0644	edit dl rm
gui_w32.txt	18916	0644	edit dl rm
gui_x11.txt	29480	0644	edit dl rm
hangulin.txt	3291	0644	edit dl rm
hebrew.txt	5714	0644	edit dl rm
help.txt	8578	0644	edit dl rm
helphelp.txt	14338	0644	edit dl rm
howto.txt	2911	0644	edit dl rm
if_cscop.txt	19361	0644	edit dl rm
if_lua.txt	14642	0644	edit dl rm
if_mzsch.txt	11823	0644	edit dl rm
if_ole.txt	7405	0644	edit dl rm
if_perl.txt	11149	0644	edit dl rm
if_pyth.txt	37944	0644	edit dl rm
if_ruby.txt	8014	0644	edit dl rm
if_sniff.txt	266	0644	edit dl rm
if_tcl.txt	23026	0644	edit dl rm
indent.txt	39427	0644	edit dl rm
index.txt	76443	0644	edit dl rm
insert.txt	83156	0644	edit dl rm
intro.txt	39226	0644	edit dl rm
map.txt	64668	0644	edit dl rm
mbyte.txt	59306	0644	edit dl rm
message.txt	31230	0644	edit dl rm
mlang.txt	7850	0644	edit dl rm
motion.txt	51602	0644	edit dl rm
netbeans.txt	36998	0644	edit dl rm
options.txt	389116	0644	edit dl rm
os_390.txt	4753	0644	edit dl rm
os_amiga.txt	5461	0644	edit dl rm
os_beos.txt	10983	0644	edit dl rm
os_dos.txt	12021	0644	edit dl rm
os_mac.txt	6851	0644	edit dl rm
os_mint.txt	1402	0644	edit dl rm
os_msdos.txt	518	0644	edit dl rm
os_os2.txt	294	0644	edit dl rm
os_qnx.txt	4071	0644	edit dl rm
os_risc.txt	323	0644	edit dl rm
os_unix.txt	2595	0644	edit dl rm
os_vms.txt	32100	0644	edit dl rm
os_win32.txt	13348	0644	edit dl rm
pattern.txt	59321	0644	edit dl rm
pi_getscript.txt	21078	0644	edit dl rm
pi_gzip.txt	1321	0644	edit dl rm
pi_logipat.txt	4186	0644	edit dl rm
pi_netrw.txt	175550	0644	edit dl rm
pi_paren.txt	2269	0644	edit dl rm
pi_spec.txt	4122	0644	edit dl rm
pi_tar.txt	6223	0644	edit dl rm
pi_vimball.txt	11853	0644	edit dl rm
pi_zip.txt	7229	0644	edit dl rm
print.txt	31158	0644	edit dl rm
quickfix.txt	69021	0644	edit dl rm
quickref.txt	71256	0644	edit dl rm
quotes.txt	12743	0644	edit dl rm
recover.txt	10694	0644	edit dl rm
remote.txt	8420	0644	edit dl rm
repeat.txt	39573	0644	edit dl rm
rileft.txt	4976	0644	edit dl rm
russian.txt	3090	0644	edit dl rm
scroll.txt	14071	0644	edit dl rm
sign.txt	6891	0644	edit dl rm
spell.txt	62781	0644	edit dl rm
sponsor.txt	7198	0644	edit dl rm
starting.txt	73622	0644	edit dl rm
syntax.txt	217471	0644	edit dl rm
tabpage.txt	16720	0644	edit dl rm
tags	328832	0644	edit dl rm
tagsrch.txt	36636	0644	edit dl rm
term.txt	45416	0644	edit dl rm
terminal.txt	33567	0644	edit dl rm
tips.txt	20556	0644	edit dl rm
todo.txt	296268	0644	edit dl rm
uganda.txt	14024	0644	edit dl rm
undo.txt	16539	0644	edit dl rm
usr_01.txt	7090	0644	edit dl rm
usr_02.txt	24339	0644	edit dl rm
usr_03.txt	23605	0644	edit dl rm
usr_04.txt	19082	0644	edit dl rm
usr_05.txt	23824	0644	edit dl rm
usr_06.txt	9587	0644	edit dl rm
usr_07.txt	15984	0644	edit dl rm
usr_08.txt	19374	0644	edit dl rm
usr_09.txt	11450	0644	edit dl rm
usr_10.txt	29180	0644	edit dl rm
usr_11.txt	12611	0644	edit dl rm
usr_12.txt	13424	0644	edit dl rm
usr_20.txt	13703	0644	edit dl rm
usr_21.txt	18373	0644	edit dl rm
usr_22.txt	14297	0644	edit dl rm
usr_23.txt	12588	0644	edit dl rm
usr_24.txt	20869	0644	edit dl rm
usr_25.txt	19114	0644	edit dl rm
usr_26.txt	8254	0644	edit dl rm
usr_27.txt	17723	0644	edit dl rm
usr_28.txt	16015	0644	edit dl rm
usr_29.txt	20116	0644	edit dl rm
usr_30.txt	22656	0644	edit dl rm
usr_31.txt	10394	0644	edit dl rm
usr_32.txt	5373	0644	edit dl rm
usr_40.txt	23184	0644	edit dl rm
usr_41.txt	89301	0644	edit dl rm
usr_42.txt	13798	0644	edit dl rm
usr_43.txt	7404	0644	edit dl rm
usr_44.txt	29211	0644	edit dl rm
usr_45.txt	17912	0644	edit dl rm
usr_90.txt	17661	0644	edit dl rm
usr_toc.txt	9218	0644	edit dl rm
various.txt	28852	0644	edit dl rm
version4.txt	13906	0644	edit dl rm
version5.txt	308543	0644	edit dl rm
version6.txt	577052	0644	edit dl rm
version7.txt	674766	0644	edit dl rm
version8.txt	684252	0644	edit dl rm
visual.txt	21843	0644	edit dl rm
vi_diff.txt	42812	0644	edit dl rm
windows.txt	53030	0644	edit dl rm
workshop.txt	4631	0644	edit dl rm

Edit: /usr/share/vim/vim80/doc/helphelp.txt (14338B)

*helphelp.txt*	For Vim version 8.0.  Last change: 2017 Mar 19

VIM REFERENCE MANUAL    by Bram Moolenaar

Help on help files					*helphelp*

==============================================================================
1. Help commands					*online-help*

*help* *<Help>* *:h* *:help* *<F1>* *i_<F1>* *i_<Help>*
<Help>		or
:h[elp]			Open a window and display the help file in read-only
			mode.  If there is a help window open already, use
			that one.  Otherwise, if the current window uses the
			full width of the screen or is at least 80 characters
			wide, the help window will appear just above the
			current window.  Otherwise the new window is put at
			the very top.
			The 'helplang' option is used to select a language, if
			the main help file is available in several languages.
			{not in Vi}

*{subject}* *E149* *E661*
:h[elp] {subject}	Like ":help", additionally jump to the tag {subject}.
			For example:  >
				:help options

<			{subject} can include wildcards such as "*", "?" and
			"[a-z]":
			   :help z?	jump to help for any "z" command
			   :help z.	jump to the help for "z."
			But when a tag exists it is taken literally:
			   :help :?	jump to help for ":?"

If there is no full match for the pattern, or there
			are several matches, the "best" match will be used.
			A sophisticated algorithm is used to decide which
			match is better than another one.  These items are
			considered in the computation:
			- A match with same case is much better than a match
			  with different case.
			- A match that starts after a non-alphanumeric
			  character is better than a match in the middle of a
			  word.
			- A match at or near the beginning of the tag is
			  better than a match further on.
			- The more alphanumeric characters match, the better.
			- The shorter the length of the match, the better.

The 'helplang' option is used to select a language, if
			the {subject} is available in several languages.
			To find a tag in a specific language, append "@ab",
			where "ab" is the two-letter language code.  See
			|help-translated|.

Note that the longer the {subject} you give, the less
			matches will be found.  You can get an idea how this
			all works by using commandline completion (type CTRL-D
			after ":help subject" |c_CTRL-D|).
			If there are several matches, you can have them listed
			by hitting CTRL-D.  Example: >
				:help cont<Ctrl-D>

<			Instead of typing ":help CTRL-V" to search for help
			for CTRL-V you can type: >
				:help ^V
<			This also works together with other characters, for
			example to find help for CTRL-V in Insert mode: >
				:help i^V
<
			It is also possible to first do ":help" and then
			use ":tag {pattern}" in the help window.  The
			":tnext" command can then be used to jump to other
			matches, "tselect" to list matches and choose one. >
				:help index
				:tselect /.*mode

<			When there is no argument you will see matches for
			"help", to avoid listing all possible matches (that
			would be very slow).
			The number of matches displayed is limited to 300.

The `:help` command can be followed by '|' and another
			command, but you don't need to escape the '|' inside a
			help command.  So these both work: >
				:help |
				:help k| only
<			Note that a space before the '|' is seen as part of
			the ":help" argument.
			You can also use <LF> or <CR> to separate the help
			command from a following command.  You need to type
			CTRL-V first to insert the <LF> or <CR>.  Example: >
				:help so<C-V><CR>only
<			{not in Vi}

:h[elp]! [subject]	Like ":help", but in non-English help files prefer to
			find a tag in a file with the same language as the
			current file.  See |help-translated|.

*:helpc* *:helpclose*
:helpc[lose]            Close one help window, if there is one.

*:helpg* *:helpgrep*
:helpg[rep] {pattern}[@xx]
			Search all help text files and make a list of lines
			in which {pattern} matches.  Jumps to the first match.
			The optional [@xx] specifies that only matches in the
			"xx" language are to be found.
			You can navigate through the matches with the
			|quickfix| commands, e.g., |:cnext| to jump to the
			next one.  Or use |:cwindow| to get the list of
			matches in the quickfix window.
			{pattern} is used as a Vim regexp |pattern|.
			'ignorecase' is not used, add "\c" to ignore case.
			Example for case sensitive search: >
				:helpgrep Uganda
<			Example for case ignoring search: >
				:helpgrep uganda\c
<			Example for searching in French help: >
				:helpgrep backspace@fr
<			The pattern does not support line breaks, it must
			match within one line.  You can use |:grep| instead,
			but then you need to get the list of help files in a
			complicated way.
			Cannot be followed by another command, everything is
			used as part of the pattern.  But you can use
			|:execute| when needed.
			Compressed help files will not be searched (Fedora
			compresses the help files).
			{not in Vi}

*:lh* *:lhelpgrep*
:lh[elpgrep] {pattern}[@xx]
			Same as ":helpgrep", except the location list is used
			instead of the quickfix list.  If the help window is
			already opened, then the location list for that window
			is used.  Otherwise, a new help window is opened and
			the location list for that window is set.  The
			location list for the current window is not changed
			then.

*:exu* *:exusage*
:exu[sage]		Show help on Ex commands.  Added to simulate the Nvi
			command. {not in Vi}

*:viu* *:viusage*
:viu[sage]		Show help on Normal mode commands.  Added to simulate
			the Nvi command. {not in Vi}

When no argument is given to |:help| the file given with the 'helpfile' option
will be opened.  Otherwise the specified tag is searched for in all "doc/tags"
files in the directories specified in the 'runtimepath' option.

The initial height of the help window can be set with the 'helpheight' option
(default 20).

Jump to specific subjects by using tags.  This can be done in two ways:
- Use the "CTRL-]" command while standing on the name of a command or option.
  This only works when the tag is a keyword.  "<C-Leftmouse>" and
  "g<LeftMouse>" work just like "CTRL-]".
- use the ":ta {subject}" command.  This also works with non-keyword
  characters.

Use CTRL-T or CTRL-O to jump back.
Use ":q" to close the help window.

If there are several matches for an item you are looking for, this is how you
can jump to each one of them:
1. Open a help window
2. Use the ":tag" command with a slash prepended to the tag.  E.g.: >
	:tag /min
3. Use ":tnext" to jump to the next matching tag.

It is possible to add help files for plugins and other items.  You don't need
to change the distributed help files for that.  See |add-local-help|.

To write a local help file, see |write-local-help|.

Note that the title lines from the local help files are automagically added to
the "LOCAL ADDITIONS" section in the "help.txt" help file |local-additions|.
This is done when viewing the file in Vim, the file itself is not changed.  It
is done by going through all help files and obtaining the first line of each
file.  The files in $VIMRUNTIME/doc are skipped.

*help-xterm-window*
If you want to have the help in another xterm window, you could use this
command: >
	:!xterm -e vim +help &
<

*:helpfind* *:helpf*
:helpf[ind]		Like |:help|, but use a dialog to enter the argument.
			Only for backwards compatibility.  It now executes the
			ToolBar.FindHelp menu entry instead of using a builtin
			dialog.  {only when compiled with |+GUI_GTK|}
			{not in Vi}

*:helpt* *:helptags*
				*E154* *E150* *E151* *E152* *E153* *E670*
:helpt[ags] [++t] {dir}
			Generate the help tags file(s) for directory {dir}.
			When {dir} is ALL then all "doc" directories in
			'runtimepath' will be used.

All "*.txt" and "*.??x" files in the directory and
			sub-directories are scanned for a help tag definition
			in between stars.  The "*.??x" files are for
			translated docs, they generate the "tags-??" file, see
			|help-translated|.  The generated tags files are
			sorted.
			When there are duplicates an error message is given.
			An existing tags file is silently overwritten.

The optional "++t" argument forces adding the
			"help-tags" tag.  This is also done when the {dir} is
			equal to $VIMRUNTIME/doc.

To rebuild the help tags in the runtime directory
			(requires write permission there): >
				:helptags $VIMRUNTIME/doc
<			{not in Vi}

==============================================================================
2. Translated help files				*help-translated*

It is possible to add translated help files, next to the original English help
files.  Vim will search for all help in "doc" directories in 'runtimepath'.
This is only available when compiled with the |+multi_lang| feature.

At this moment translations are available for:
	Chinese  - multiple authors
	French   - translated by David Blanchet
	Italian  - translated by Antonio Colombo
	Japanese - multiple authors
	Polish   - translated by Mikolaj Machowski
	Russian  - translated by Vassily Ragosin
See the Vim website to find them: http://www.vim.org/translations.php

A set of translated help files consists of these files:

help.abx
	howto.abx
	...
	tags-ab

"ab" is the two-letter language code.  Thus for Italian the names are:

help.itx
	howto.itx
	...
	tags-it

The 'helplang' option can be set to the preferred language(s).  The default is
set according to the environment.  Vim will first try to find a matching tag
in the preferred language(s).  English is used when it cannot be found.

To find a tag in a specific language, append "@ab" to a tag, where "ab" is the
two-letter language code.  Example: >
	:he user-manual@it
	:he user-manual@en
The first one finds the Italian user manual, even when 'helplang' is empty.
The second one finds the English user manual, even when 'helplang' is set to
"it".

When using command-line completion for the ":help" command, the "@en"
extension is only shown when a tag exists for multiple languages.  When the
tag only exists for English "@en" is omitted.  When the first candidate has an
"@ab" extension and it matches the first language in 'helplang' "@ab" is also
omitted.

When using |CTRL-]| or ":help!" in a non-English help file Vim will try to
find the tag in the same language.  If not found then 'helplang' will be used
to select a language.

Help files must use latin1 or utf-8 encoding.  Vim assumes the encoding is
utf-8 when finding non-ASCII characters in the first line.  Thus you must
translate the header with "For Vim version".

The same encoding must be used for the help files of one language in one
directory.  You can use a different encoding for different languages and use
a different encoding for help files of the same language but in a different
directory.

Hints for translators:
- Do not translate the tags.  This makes it possible to use 'helplang' to
  specify the preferred language.  You may add new tags in your language.
- When you do not translate a part of a file, add tags to the English version,
  using the "tag@en" notation.
- Make a package with all the files and the tags file available for download.
  Users can drop it in one of the "doc" directories and start use it.
  Report this to Bram, so that he can add a link on www.vim.org.
- Use the |:helptags| command to generate the tags files.  It will find all
  languages in the specified directory.

==============================================================================
3. Writing help files					*help-writing*

For ease of use, a Vim help file for a plugin should follow the format of the
standard Vim help files.  If you are writing a new help file it's best to copy
one of the existing files and use it as a template.

The first line in a help file should have the following format:

*helpfile_name.txt*	For Vim version 7.3	Last change: 2010 June 4

The first field is a link to the help file name.  The second field describes
the applicable Vim version.  The last field specifies the last modification
date of the file.  Each field is separated by a tab.

At the bottom of the help file, place a Vim modeline to set the 'textwidth'
and 'tabstop' options and the 'filetype' to "help".  Never set a global option
in such a modeline, that can have consequences undesired by whoever reads that
help.