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Fontify all comment delimiters in 'lua-ts-mode'

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* lisp/progmodes/lua-ts-mode.el (lua-ts--comment-font-lock):
Apply 'font-lock-comment-delimiter-face' to the entire span of
initial dashes.  In particular, this improves the appearance of
LuaCATS and EmmyLua style annotations which use "---".
* test/lisp/progmodes/lua-ts-mode-resources/font-lock.lua:
Add tests.  (Bug#79258)
This commit is contained in:
john muhl 2025-05-14 08:53:42 -05:00 committed by Eli Zaretskii
parent b0efe06551
commit 34f3ac6c5b
2 changed files with 10 additions and 2 deletions
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7
lisp/progmodes/lua-ts-mode.el
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@ -168,10 +168,13 @@ values of OVERRIDE."
(let* ((node-start (treesit-node-start node))
(node-end (treesit-node-end node))
(node-text (treesit-node-text node t))
(delimiter-end (+ 2 node-start)))
(delimiter-end (progn
(goto-char node-start)
(while (looking-at-p "-") (forward-char))
(point))))
(when (and (>= node-start start)
(<= delimiter-end end)
(string-match "\\`--" node-text))
(string-match "\\`---*" node-text))
(treesit-fontify-with-override node-start
delimiter-end
'font-lock-comment-delimiter-face

5
test/lisp/progmodes/lua-ts-mode-resources/font-lock.lua
View file

@ -11,6 +11,11 @@ Multi-line comment
-- <- font-lock-comment-face
local line_comment = "comment" -- comment
-- ^ font-lock-comment-face
---@alias MyNumber integer
-- <- font-lock-comment-delimiter-face
------Calculate new number
-- ^ font-lock-comment-delimiter-face
function calc() end
-- Definition
local function f1() end