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-rw-r--r--runtime/lua/vim/highlight.lua29
-rw-r--r--runtime/lua/vim/lsp/util.lua25
2 files changed, 30 insertions, 24 deletions
diff --git a/runtime/lua/vim/highlight.lua b/runtime/lua/vim/highlight.lua
index 5c98c626a4..69c3c8a4dc 100644
--- a/runtime/lua/vim/highlight.lua
+++ b/runtime/lua/vim/highlight.lua
@@ -2,12 +2,34 @@ local api = vim.api
local highlight = {}
+--- Highlight range between two positions
+---
+--@param bufnr number of buffer to apply highlighting to
+--@param ns namespace to add highlight to
+--@param higroup highlight group to use for highlighting
+--@param rtype type of range (:help setreg, default charwise)
+--@param inclusive boolean indicating whether the range is end-inclusive (default false)
+function highlight.range(bufnr, ns, higroup, start, finish, rtype, inclusive)
+ rtype = rtype or 'v'
+ inclusive = inclusive or false
+
+ -- sanity check
+ if start[2] < 0 or finish[2] < start[2] then return end
+
+ local region = vim.region(bufnr, start, finish, rtype, inclusive)
+ for linenr, cols in pairs(region) do
+ api.nvim_buf_add_highlight(bufnr, ns, higroup, linenr, cols[1], cols[2])
+ end
+
+end
+
--- Highlight the yanked region
---
+---
--- use from init.vim via
--- au TextYankPost * lua require'vim.highlight'.on_yank()
--- customize highlight group and timeout via
--- au TextYankPost * lua require'vim.highlight'.on_yank("IncSearch", 500)
+---
-- @param higroup highlight group for yanked region
-- @param timeout time in ms before highlight is cleared
-- @param event event structure
@@ -27,10 +49,7 @@ function highlight.on_yank(higroup, timeout, event)
pos1 = {pos1[2] - 1, pos1[3] - 1 + pos1[4]}
pos2 = {pos2[2] - 1, pos2[3] - 1 + pos2[4]}
- local region = vim.region(bufnr, pos1, pos2, event.regtype, event.inclusive)
- for linenr, cols in pairs(region) do
- api.nvim_buf_add_highlight(bufnr, yank_ns, higroup, linenr, cols[1], cols[2])
- end
+ highlight.range(bufnr, yank_ns, higroup, pos1, pos2, event.regtype, event.inclusive)
vim.defer_fn(
function() api.nvim_buf_clear_namespace(bufnr, yank_ns, 0, -1) end,
diff --git a/runtime/lua/vim/lsp/util.lua b/runtime/lua/vim/lsp/util.lua
index 752d4ff439..79d428d12d 100644
--- a/runtime/lua/vim/lsp/util.lua
+++ b/runtime/lua/vim/lsp/util.lua
@@ -3,6 +3,7 @@ local vim = vim
local validate = vim.validate
local api = vim.api
local list_extend = vim.list_extend
+local highlight = require 'vim.highlight'
local M = {}
@@ -691,7 +692,7 @@ function M.fancy_floating_markdown(contents, opts)
vim.cmd("ownsyntax markdown")
local idx = 1
- local function highlight_region(ft, start, finish)
+ local function apply_syntax_to_region(ft, start, finish)
if ft == '' then return end
local name = ft..idx
idx = idx + 1
@@ -707,8 +708,8 @@ function M.fancy_floating_markdown(contents, opts)
-- make sure that regions between code blocks are definitely markdown.
-- local ph = {start = 0; finish = 1;}
for _, h in ipairs(highlights) do
- -- highlight_region('markdown', ph.finish, h.start)
- highlight_region(h.ft, h.start, h.finish)
+ -- apply_syntax_to_region('markdown', ph.finish, h.start)
+ apply_syntax_to_region(h.ft, h.start, h.finish)
-- ph = h
end
@@ -762,19 +763,6 @@ function M.open_floating_preview(contents, filetype, opts)
return floating_bufnr, floating_winnr
end
-local function highlight_range(bufnr, ns, hiname, start, finish)
- if start[1] == finish[1] then
- -- TODO care about encoding here since this is in byte index?
- api.nvim_buf_add_highlight(bufnr, ns, hiname, start[1], start[2], finish[2])
- else
- api.nvim_buf_add_highlight(bufnr, ns, hiname, start[1], start[2], -1)
- for line = start[1] + 1, finish[1] - 1 do
- api.nvim_buf_add_highlight(bufnr, ns, hiname, line, 0, -1)
- end
- api.nvim_buf_add_highlight(bufnr, ns, hiname, finish[1], 0, finish[2])
- end
-end
-
do
local diagnostic_ns = api.nvim_create_namespace("vim_lsp_diagnostics")
local reference_ns = api.nvim_create_namespace("vim_lsp_references")
@@ -908,8 +896,7 @@ do
[protocol.DiagnosticSeverity.Hint]='Hint',
}
- -- TODO care about encoding here since this is in byte index?
- highlight_range(bufnr, diagnostic_ns,
+ highlight.range(bufnr, diagnostic_ns,
underline_highlight_name..hlmap[diagnostic.severity],
{start.line, start.character},
{finish.line, finish.character}
@@ -933,7 +920,7 @@ do
[protocol.DocumentHighlightKind.Write] = "LspReferenceWrite";
}
local kind = reference["kind"] or protocol.DocumentHighlightKind.Text
- highlight_range(bufnr, reference_ns, document_highlight_kind[kind], start_pos, end_pos)
+ highlight.range(bufnr, reference_ns, document_highlight_kind[kind], start_pos, end_pos)
end
end