window. The language is heavily
inspired by CSS stylesheet. Files with the following extensions are recognized
as rasi files: .rasi.

READLINE				*readline.vim* *ft-readline-syntax*

The readline library is primarily used by the BASH shell, which adds quite a
few commands and options to the ones already available.  To highlight these
items as well you can add the following to your |vimrc| or just type it in the
command line before loading a file with the readline syntax: >
	let readline_has_bash = 1

This will add highlighting for the commands that BASH (version 2.05a and
later, and part earlier) adds.


REGO						*rego.vim* *ft-rego-syntax*

Rego is a query language developed by Styra.  It is mostly used as a policy
language for kubernetes, but can be applied to almost anything.  Files with
the following extensions are recognized as rego files: .rego.


RESTRUCTURED TEXT			*rst.vim* *ft-rst-syntax*

Syntax highlighting is enabled for code blocks within the document for a
select number of file types.  See $VIMRUNTIME/syntax/rst.vim for the default
syntax list.

To set a user-defined list of code block syntax highlighting: >
	let rst_syntax_code_list = ['vim', 'lisp', ...]

To assign multiple code block types to a single syntax, define
`rst_syntax_code_list` as a mapping: >
	let rst_syntax_code_list = {
		\ 'cpp': ['cpp', 'c++'],
		\ 'bash': ['bash', 'sh'],
		...
	\ }

To use color highlighting for emphasis text: >
	let rst_use_emphasis_colors = 1

To enable folding of sections: >
	let rst_fold_enabled = 1

Note that folding can cause performance issues on some platforms.


REXX						*rexx.vim* *ft-rexx-syntax*

If you notice highlighting errors while scrolling backwards, which are fixed
when redrawing with CTRL-L, try setting the "rexx_minlines" internal variable
to a larger number: >
	:let rexx_minlines = 50
This will make the syntax synchronization start 50 lines before the first
displayed line.  The default value is 10.  The disadvantage of using a larger
number is that redrawing can become slow.

Vim tries to guess what type a ".r" file is.  If it can't be detected (from
comment lines), the default is "r".  To make the default rexx add this line to
your vimrc:							*g:filetype_r*
>
	:let g:filetype_r = "r"


RUBY						*ruby.vim* *ft-ruby-syntax*

    Ruby: Operator highlighting		|ruby_operators|
    Ruby: Whitespace errors		|ruby_space_errors|
    Ruby: Folding			|ruby_fold| |ruby_foldable_groups|
    Ruby: Reducing expensive operations	|ruby_no_expensive| |ruby_minlines|
    Ruby: Spellchecking strings		|ruby_spellcheck_strings|

						*ruby_operators*
 Ruby: Operator highlighting ~

Operators can be highlighted by defining "ruby_operators": >

	:let ruby_operators = 1
<
						*ruby_space_errors*
 Ruby: Whitespace errors ~

Whitespace errors can be highlighted by defining "ruby_space_errors": >

	:let ruby_space_errors = 1
<
This will highlight trailing whitespace and tabs preceded by a space character
as errors.  This can be refined by defining "ruby_no_trail_space_error" and
"ruby_no_tab_space_error" which will ignore trailing whitespace and tabs after
spaces respectively.

					*ruby_fold* *ruby_foldable_groups*
 Ruby: Folding ~

Folding can be enabled by defining "ruby_fold": >

	:let ruby_fold = 1
<
This will set the value of 'foldmethod' to "syntax" locally to the current
buffer or window, which will enable syntax-based folding when editing Ruby
filetypes.

Default folding is rather detailed, i.e., small syntax units like "if", "do",
"%w[]" may create corresponding fold levels.

You can set "ruby_foldable_groups" to restrict which groups are foldable: >

	:let ruby_foldable_groups = 'if case %'
<
The value is a space-separated list of keywords:

    keyword       meaning ~
    --------  ------------------------------------- ~
    ALL        Most block syntax (default)
    NONE       Nothing
    if	       "if" or "unless" block
    def        "def" block
    class      "class" block
    module     "module" block