vim: tweak @ handling.

I noticed that in some Vim color schemes, the @
in @(  ) is colored the same as the parentheses,
whereas in @abc, it is colored differently from
the identifier (and different from parentheses).

This patch fixes things so that the @ sigil is
in the Special category, rather than Delimiter,
almost everywhere.

* genvim.txr (txr-elem): New variable, for holding
names of regions which follow the @ in the TXR
language. Used in definition of txr_at.
(bvar, dir, list): Remove the txr_mlist
and txr_mbracket regions.
(txr_at): New match group defined, which matches
the @ sigil in TXR, followed by various elements
using the nextgroup mechanism. txr_at is already
assigned to a highlight category via a previously
dangling entry.
(txr_error,txr_atat,txr_comment,txr_contin,
txr_char,txr_error,txr_char,txr_regdir,txr_variable,
txr_splicevar,txr_metanum,txr_directive):
These match groups don't match the leading @
sigil any more and are marked contained. They
activate as the nextgroup items in txr_at,
allowing them to be colored differently.
(tl_error): New group. split off from txr_error.
We don't want to to recognize this category
after the @ in TXR because @#... is the old-style
comment.
(tl_ident): Don't try to match leading @. This is
useless because there is a more specific match
via txr_metaat later.
(txr_quote, txr_metaat): Mark these not contained
in  Lisp so they activate at the top level.
(txr_directive): Don't match leading @. This now
activates as a nextgroup item in txr_at. Thus
directives can have a differently colored @.
(txr_mlist, txr_mbracket): These are now unconditionally
contained, and are used only in txr_quasilit.
I am otherwise leaving quasiliterals alone in this
patch; it will need the same treatment for @ to be
colored seprately inside quasiliterals.

0 files changed, 0 insertions, 0 deletions