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lua: Add highlight.on_yank (#12279)

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* add lua function to highlight yanked region

* extract namespace, better naming, default values

* add default for event argument

* free timer

* factor out mark to position calculation

* d'oh

* make sure timer stops before callback (cf. luv example)

* factor out timer, more documentation

* fixup

* validate function argument for schedule

* fix block selection past eol

* correct handling of multibyte characters

* move arguments around, some cleanup

* move utility functions to vim.lua

* use anonymous namespaces, avoid local api

* rename function

* add test for schedule_fn

* fix indent

* turn hl-yank into proper (hightlight) module

* factor out position-to-region function

mark extraction now part of highlight.on_yank

* rename schedule_fn to defer_fn

* add test for vim.region

* todo: handle double-width characters

* remove debug printout

* do not shadow arguments

* defer also callable table

* whitespace change

* move highlight to vim/highlight.lua

* add documentation

* add @return documentation

* test: add check before vim.defer fires

* doc: fixup
This commit is contained in:
Christian Clason
2020-05-18 15:49:50 +02:00
committed by GitHub
parent a6be7a9180
commit f2894bffb0
5 changed files with 158 additions and 1 deletions
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22
test/functional/lua/vim_spec.lua
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@@ -1046,4 +1046,24 @@ describe('lua stdlib', function()
eq({}, exec_lua[[return {re1:match_line(0, 1, 1, 7)}]])
eq({0,3}, exec_lua[[return {re1:match_line(0, 1, 0, 7)}]])
end)
end)
it('vim.defer_fn', function()
exec_lua [[
vim.g.test = 0
vim.defer_fn(function() vim.g.test = 1 end, 10)
]]
eq(0, exec_lua[[return vim.g.test]])
exec_lua [[vim.cmd("sleep 10m")]]
eq(1, exec_lua[[return vim.g.test]])
end)
it('vim.region', function()
helpers.insert(helpers.dedent( [[
text tααt tααt text
text tαxt txtα tex
text tαxt tαxt
]]))
eq({5,15}, exec_lua[[ return vim.region(0,{1,5},{1,14},'v',true)[1] ]])
end)
end)