lite-xl/data/core/commands/doc.lua

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local core = require "core"
local command = require "core.command"
local common = require "core.common"
local config = require "core.config"
local translate = require "core.doc.translate"
local DocView = require "core.docview"
local function dv()
return core.active_view
end
local function doc()
return core.active_view.doc
end
local function get_indent_string()
if config.tab_type == "hard" then
return "\t"
end
return string.rep(" ", config.indent_size)
end
local function doc_multiline_selections(sort)
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local iter, state, idx, line1, col1, line2, col2 = doc():get_selections(sort)
return function()
idx, line1, col1, line2, col2 = iter(state, idx)
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if idx and line2 > line1 and col2 == 1 then
line2 = line2 - 1
col2 = #doc().lines[line2]
end
return idx, line1, col1, line2, col2
end
end
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local function append_line_if_last_line(line)
if line >= #doc().lines then
doc():insert(line, math.huge, "\n")
end
end
local function save(filename)
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local abs_filename
if filename then
filename = core.normalize_to_project_dir(filename)
abs_filename = core.project_absolute_path(filename)
end
doc():save(filename, abs_filename)
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local saved_filename = doc().filename
core.log("Saved \"%s\"", saved_filename)
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end
local function cut_or_copy(delete)
local full_text = ""
for idx, line1, col1, line2, col2 in doc():get_selections() do
if line1 ~= line2 or col1 ~= col2 then
local text = doc():get_text(line1, col1, line2, col2)
if delete then
doc():delete_to_cursor(idx, 0)
end
full_text = full_text == "" and text or (full_text .. "\n" .. text)
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doc().cursor_clipboard[idx] = text
else
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doc().cursor_clipboard[idx] = ""
end
end
system.set_clipboard(full_text)
end
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local function split_cursor(direction)
local new_cursors = {}
for _, line1, col1 in doc():get_selections() do
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if line1 > 1 and line1 < #doc().lines then
table.insert(new_cursors, { line1 + direction, col1 })
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end
end
for i,v in ipairs(new_cursors) do doc():add_selection(v[1], v[2]) end
core.blink_reset()
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end
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local commands = {
["doc:undo"] = function()
doc():undo()
end,
["doc:redo"] = function()
doc():redo()
end,
["doc:cut"] = function()
cut_or_copy(true)
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end,
["doc:copy"] = function()
cut_or_copy(false)
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end,
["doc:paste"] = function()
for idx, line1, col1, line2, col2 in doc():get_selections() do
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local value = doc().cursor_clipboard[idx] or system.get_clipboard()
doc():text_input(value:gsub("\r", ""), idx)
end
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end,
["doc:newline"] = function()
for idx, line, col in doc():get_selections(false, true) do
local indent = doc().lines[line]:match("^[\t ]*")
if col <= #indent then
indent = indent:sub(#indent + 2 - col)
end
doc():text_input("\n" .. indent, idx)
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end
end,
["doc:newline-below"] = function()
for idx, line in doc():get_selections(false, true) do
local indent = doc().lines[line]:match("^[\t ]*")
doc():insert(line, math.huge, "\n" .. indent)
doc():set_selections(idx, line + 1, math.huge)
end
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end,
["doc:newline-above"] = function()
for idx, line in doc():get_selections(false, true) do
local indent = doc().lines[line]:match("^[\t ]*")
doc():insert(line, 1, indent .. "\n")
doc():set_selections(idx, line, math.huge)
end
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end,
["doc:delete"] = function()
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for idx, line1, col1, line2, col2 in doc():get_selections() do
if line1 == line2 and col1 == col2 and doc().lines[line1]:find("^%s*$", col1) then
doc():remove(line1, col1, line1, math.huge)
end
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doc():delete_to_cursor(idx, translate.next_char)
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end
end,
["doc:backspace"] = function()
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for idx, line1, col1, line2, col2 in doc():get_selections() do
if line1 == line2 and col1 == col2 then
local text = doc():get_text(line1, 1, line1, col1)
if #text >= config.indent_size and text:find("^ *$") then
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doc():delete_to_cursor(idx, 0, -config.indent_size)
return
end
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end
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doc():delete_to_cursor(idx, translate.previous_char)
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end
end,
["doc:select-all"] = function()
doc():set_selection(1, 1, math.huge, math.huge)
end,
["doc:select-none"] = function()
local line, col = doc():get_selection()
doc():set_selection(line, col)
end,
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["doc:indent"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
local l1, c1, l2, c2 = doc():indent_text(false, line1, col1, line2, col2)
if l1 then
doc():set_selections(idx, l1, c1, l2, c2)
end
end
end,
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["doc:select-lines"] = function()
for idx, line1, _, line2 in doc():get_selections(true) do
append_line_if_last_line(line2)
doc():set_selections(idx, line1, 1, line2 + 1, 1)
end
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end,
["doc:select-word"] = function()
for idx, line1, col1 in doc():get_selections(true) do
local line1, col1 = translate.start_of_word(doc(), line1, col1)
local line2, col2 = translate.end_of_word(doc(), line1, col1)
doc():set_selections(idx, line2, col2, line1, col1)
end
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end,
["doc:join-lines"] = function()
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for idx, line1, col1, line2, col2 in doc():get_selections(true) do
if line1 == line2 then line2 = line2 + 1 end
local text = doc():get_text(line1, 1, line2, math.huge)
text = text:gsub("(.-)\n[\t ]*", function(x)
return x:find("^%s*$") and x or x .. " "
end)
doc():insert(line1, 1, text)
doc():remove(line1, #text + 1, line2, math.huge)
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if line1 ~= line2 or col1 ~= col2 then
doc():set_selections(idx, line1, math.huge)
end
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end
end,
["doc:indent"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
local l1, c1, l2, c2 = doc():indent_text(false, line1, col1, line2, col2)
if l1 then
doc():set_selections(idx, l1, c1, l2, c2)
end
end
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end,
["doc:unindent"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
local l1, c1, l2, c2 = doc():indent_text(true, line1, col1, line2, col2)
if l1 then
doc():set_selections(idx, l1, c1, l2, c2)
end
end
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end,
["doc:duplicate-lines"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2)
local text = doc():get_text(line1, 1, line2 + 1, 1)
doc():insert(line2 + 1, 1, text)
local n = line2 - line1 + 1
doc():set_selections(idx, line1 + n, col1, line2 + n, col2)
end
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end,
["doc:delete-lines"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2)
doc():remove(line1, 1, line2 + 1, 1)
doc():set_selections(idx, line1, col1)
end
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end,
["doc:move-lines-up"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2)
if line1 > 1 then
local text = doc().lines[line1 - 1]
doc():insert(line2 + 1, 1, text)
doc():remove(line1 - 1, 1, line1, 1)
doc():set_selections(idx, line1 - 1, col1, line2 - 1, col2)
end
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end
end,
["doc:move-lines-down"] = function()
for idx, line1, col1, line2, col2 in doc_multiline_selections(true) do
append_line_if_last_line(line2 + 1)
if line2 < #doc().lines then
local text = doc().lines[line2 + 1]
doc():remove(line2 + 1, 1, line2 + 2, 1)
doc():insert(line1, 1, text)
doc():set_selections(idx, line1 + 1, col1, line2 + 1, col2)
end
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end
end,
["doc:toggle-line-comments"] = function()
local comment = doc().syntax.comment
if not comment then return end
local indentation = get_indent_string()
local comment_text = comment .. " "
for idx, line1, _, line2 in doc_multiline_selections(true) do
local uncomment = true
local start_offset = math.huge
for line = line1, line2 do
local text = doc().lines[line]
local s = text:find("%S")
local cs, ce = text:find(comment_text, s, true)
if s and cs ~= s then
uncomment = false
start_offset = math.min(start_offset, s)
end
end
for line = line1, line2 do
local text = doc().lines[line]
local s = text:find("%S")
if uncomment then
local cs, ce = text:find(comment_text, s, true)
if ce then
doc():remove(line, cs, line, ce + 1)
end
elseif s then
doc():insert(line, start_offset, comment_text)
end
end
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end
end,
["doc:upper-case"] = function()
doc():replace(string.upper)
end,
["doc:lower-case"] = function()
doc():replace(string.lower)
end,
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["doc:go-to-line"] = function()
local dv = dv()
local items
local function init_items()
if items then return end
items = {}
local mt = { __tostring = function(x) return x.text end }
for i, line in ipairs(dv.doc.lines) do
local item = { text = line:sub(1, -2), line = i, info = "line: " .. i }
table.insert(items, setmetatable(item, mt))
end
end
core.command_view:enter("Go To Line", function(text, item)
local line = item and item.line or tonumber(text)
if not line then
core.error("Invalid line number or unmatched string")
return
end
dv.doc:set_selection(line, 1 )
dv:scroll_to_line(line, true)
end, function(text)
if not text:find("^%d*$") then
init_items()
return common.fuzzy_match(items, text)
end
end)
end,
["doc:toggle-line-ending"] = function()
doc().crlf = not doc().crlf
end,
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["doc:save-as"] = function()
local last_doc = core.last_active_view and core.last_active_view.doc
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if doc().filename then
core.command_view:set_text(doc().filename)
elseif last_doc and last_doc.filename then
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local dirname, filename = core.last_active_view.doc.abs_filename:match("(.*)[/\\](.+)$")
core.command_view:set_text(core.normalize_to_project_dir(dirname) .. PATHSEP)
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end
core.command_view:enter("Save As", function(filename)
save(common.home_expand(filename))
end, function (text)
return common.home_encode_list(common.path_suggest(common.home_expand(text)))
end)
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end,
["doc:save"] = function()
if doc().filename then
save()
else
command.perform("doc:save-as")
end
end,
["file:rename"] = function()
local old_filename = doc().filename
if not old_filename then
core.error("Cannot rename unsaved doc")
return
end
core.command_view:set_text(old_filename)
core.command_view:enter("Rename", function(filename)
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save(common.home_expand(filename))
core.log("Renamed \"%s\" to \"%s\"", old_filename, filename)
if filename ~= old_filename then
os.remove(old_filename)
end
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end, function (text)
return common.home_encode_list(common.path_suggest(common.home_expand(text)))
end)
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end,
["file:delete"] = function()
local filename = doc().abs_filename
if not filename then
core.error("Cannot remove unsaved doc")
return
end
for i,docview in ipairs(core.get_views_referencing_doc(doc())) do
local node = core.root_view.root_node:get_node_for_view(docview)
node:close_view(core.root_view, docview)
end
os.remove(filename)
core.log("Removed \"%s\"", filename)
end,
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["doc:create-cursor-previous-line"] = function()
split_cursor(-1)
doc():merge_cursors()
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end,
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["doc:create-cursor-next-line"] = function()
split_cursor(1)
doc():merge_cursors()
end
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}
local translations = {
["previous-char"] = translate.previous_char,
["next-char"] = translate.next_char,
["previous-word-start"] = translate.previous_word_start,
["next-word-end"] = translate.next_word_end,
["previous-block-start"] = translate.previous_block_start,
["next-block-end"] = translate.next_block_end,
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["start-of-doc"] = translate.start_of_doc,
["end-of-doc"] = translate.end_of_doc,
["start-of-line"] = translate.start_of_line,
["end-of-line"] = translate.end_of_line,
["start-of-word"] = translate.start_of_word,
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["start-of-indentation"] = translate.start_of_indentation,
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["end-of-word"] = translate.end_of_word,
["previous-line"] = DocView.translate.previous_line,
["next-line"] = DocView.translate.next_line,
["previous-page"] = DocView.translate.previous_page,
["next-page"] = DocView.translate.next_page,
}
for name, fn in pairs(translations) do
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commands["doc:move-to-" .. name] = function() doc():move_to(fn, dv()) end
commands["doc:select-to-" .. name] = function() doc():select_to(fn, dv()) end
commands["doc:delete-to-" .. name] = function() doc():delete_to(fn, dv()) end
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end
commands["doc:move-to-previous-char"] = function()
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for idx, line1, col1, line2, col2 in doc():get_selections(true) do
if line1 ~= line2 or col1 ~= col2 then
doc():set_selections(idx, line1, col1)
end
end
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doc():move_to(translate.previous_char)
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end
commands["doc:move-to-next-char"] = function()
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for idx, line1, col1, line2, col2 in doc():get_selections(true) do
if line1 ~= line2 or col1 ~= col2 then
doc():set_selections(idx, line2, col2)
end
end
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doc():move_to(translate.next_char)
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end
command.add("core.docview", commands)