allow superscript/subscript regions
    S : allow texStyle syntax
    v : allow verbatim syntax
    V : allow texNewEnv and texNewCmd syntax
<
As an example, let g:tex_fast= "M" will allow math-associated highlighting
but suppress all the other region-based syntax highlighting.
(also see: |g:tex_conceal| and |tex-supersub|)

					*tex-morecommands* *tex-package*
 Tex: Want To Highlight More Commands? ~

LaTeX is a programmable language, and so there are thousands of packages full
of specialized LaTeX commands, syntax, and fonts.  If you're using such a
package you'll often wish that the distributed syntax/tex.vim would support
it.  However, clearly this is impractical.  So please consider using the
techniques in |mysyntaxfile-add| to extend or modify the highlighting provided
by syntax/tex.vim.

I've included some support for various popular packages on my website: >

	https://www.drchip.org/astronaut/vim/index.html#LATEXPKGS
<
The syntax files there go into your .../after/syntax/tex/ directory.

					*tex-error* *g:tex_no_error*
 Tex: Excessive Error Highlighting? ~

The <tex.vim> supports lexical error checking of various sorts.  Thus,
although the error checking is ofttimes very useful, it can indicate
errors where none actually are.  If this proves to be a problem for you,
you may put in your vimrc the following statement: >
	let g:tex_no_error=1
and all error checking by <syntax/tex.vim> will be suppressed.

								*tex-math*
 Tex: Need a new Math Group? ~

If you want to include a new math group in your LaTeX, the following
code shows you an example as to how you might do so: >
	call TexNewMathZone(sfx,mathzone,starform)
You'll want to provide the new math group with a unique suffix
(currently, A-L and V-Z are taken by <syntax/tex.vim> itself).
As an example, consider how eqnarray is set up by <syntax/tex.vim>: >
	call TexNewMathZone("D","eqnarray",1)
You'll need to change "mathzone" to the name of your new math group,
and then to the call to it in .vim/after/syntax/tex.vim.
The "starform" variable, if true, implies that your new math group
has a starred form (ie. eqnarray*).

					*tex-style* *b:tex_stylish*
 Tex: Starting a New Style? ~

One may use "\makeatletter" in `*.tex` files, thereby making the use of "@" in
commands available.  However, since the `*.tex` file doesn't have one of the
following suffices: sty cls clo dtx ltx, the syntax highlighting will flag
such use of @ as an error.  To solve this: >

	:let b:tex_stylish = 1
	:set ft=tex

Putting "let g:tex_stylish=1" into your vimrc will make <syntax/tex.vim>
always accept such use of @.

					*tex-cchar* *tex-cole* *tex-conceal*
 Tex: Taking Advantage of Conceal Mode~

If you have |'conceallevel'| set to 2 and if your encoding is utf-8, then a
number of character sequences can be translated into appropriate utf-8 glyphs,
including various accented characters, Greek characters in MathZones, and
superscripts and subscripts in MathZones.  Not all characters can be made into
superscripts or subscripts; the constraint is due to what utf-8 supports.
In fact, only a few characters are supported as subscripts.

One way to use this is to have vertically split windows (see |CTRL-W_v|); one
with |'conceallevel'| at 0 and the other at 2; and both using |'scrollbind'|.

					*g:tex_conceal*
 Tex: Selective Conceal Mode~

You may selectively use conceal mode by setting g:tex_conceal in your
vimrc.  By default, g:tex_conceal is set to "admgs" to enable concealment
for the following sets of characters: >

	a = accents/ligatures
	b = bold and italic
	d = delimiters
	m = math symbols
	g = Greek
	s = superscripts/subscripts
<
By leaving one or more of these out, the associated conceal-character
substitution will not be made.

						*g:tex_isk* *g:tex_stylish*
 Tex: Controlling iskeyword~

Normally, LaTeX keywords support 0-9, a-z, A-z, and 192-255 only. Latex
keywords don't support the underscore - except when in `*.sty` files.  The
syntax highlighting script handles this with