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local core = require "core"
local style = require "core.style"
local config = require "core.config"
local command = require "core.command"
local DocView = require "core.docview"
config.spellcheck_files = { "%.txt$", "%.md$", "%.markdown$" }
config.dictionary_file = "/usr/share/dict/words"
local words
core.add_thread(function()
local t = {}
local i = 0
for line in io.lines(config.dictionary_file) do
for word in line:gmatch("%a+") do
t[word:lower()] = true
end
i = i + 1
if i % 1000 == 0 then coroutine.yield() end
end
words = t
core.redraw = true
core.log_quiet("Finished loading dictionary file: \"%s\"", config.dictionary_file)
end)
local function matches_any(filename, ptns)
for _, ptn in ipairs(ptns) do
if filename:find(ptn) then return true end
end
end
local draw_line_text = DocView.draw_line_text
function DocView:draw_line_text(idx, x, y)
draw_line_text(self, idx, x, y)
if not words
or not matches_any(self.doc.filename or "", config.spellcheck_files) then
return
end
local s, e = 0, 0
local text = self.doc.lines[idx]
local l, c = self.doc:get_selection()
while true do
s, e = text:find("%a+", e + 1)
if not s then break end
local word = text:sub(s, e):lower()
if not words[word] and not (l == idx and c == e + 1) then
local color = style.spellcheck_error or style.syntax.keyword2
local x1 = x + self:get_col_x_offset(idx, s)
local x2 = x + self:get_col_x_offset(idx, e + 1)
local h = style.divider_size
renderer.draw_rect(x1, y + self:get_line_height() - h, x2 - x1, h, color)
end
end
end
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