413 lines
13 KiB
Lua
413 lines
13 KiB
Lua
local core = require "core"
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local command = require "core.command"
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local common = require "core.common"
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local config = require "core.config"
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local translate = require "core.doc.translate"
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local DocView = require "core.docview"
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local function dv()
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return core.active_view
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end
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local function doc()
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return core.active_view.doc
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end
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local function get_indent_string()
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if config.tab_type == "hard" then
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return "\t"
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end
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return string.rep(" ", config.indent_size)
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end
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local function doc_multiline_selection(sort)
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local line1, col1, line2, col2, swap = doc():get_selection(sort)
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if line2 > line1 and col2 == 1 then
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line2 = line2 - 1
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col2 = #doc().lines[line2]
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end
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return line1, col1, line2, col2, swap
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end
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local function append_line_if_last_line(line)
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if line >= #doc().lines then
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doc():insert(line, math.huge, "\n")
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end
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end
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local function save(filename)
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doc():save(filename and core.normalize_to_project_dir(filename))
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local saved_filename = doc().filename
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core.on_doc_save(saved_filename)
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core.log("Saved \"%s\"", saved_filename)
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end
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-- returns the size of the original indent, and the indent
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-- in your config format, rounded either up or down
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local function get_line_indent(line, rnd_up)
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local _, e = line:find("^[ \t]+")
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local soft_tab = string.rep(" ", config.indent_size)
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if config.tab_type == "hard" then
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local indent = e and line:sub(1, e):gsub(soft_tab, "\t") or ""
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return e, indent:gsub(" +", rnd_up and "\t" or "")
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else
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local indent = e and line:sub(1, e):gsub("\t", soft_tab) or ""
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local number = #indent / #soft_tab
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return e, indent:sub(1,
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(rnd_up and math.ceil(number) or math.floor(number))*#soft_tab)
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end
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end
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-- un/indents text; behaviour varies based on selection and un/indent.
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-- * if there's a selection, it will stay static around the
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-- text for both indenting and unindenting.
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-- * if you are in the beginning whitespace of a line, and are indenting, the
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-- cursor will insert the exactly appropriate amount of spaces, and jump the
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-- cursor to the beginning of first non whitespace characters
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-- * if you are not in the beginning whitespace of a line, and you indent, it
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-- inserts the appropriate whitespace, as if you typed them normally.
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-- * if you are unindenting, the cursor will jump to the start of the line,
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-- and remove the appropriate amount of spaces (or a tab).
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local function indent_text(unindent)
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local text = get_indent_string()
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local line1, col1, line2, col2, swap = doc_multiline_selection(true)
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local _, se = doc().lines[line1]:find("^[ \t]+")
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local in_beginning_whitespace = col1 == 1 or (se and col1 <= se + 1)
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if unindent or doc():has_selection() or in_beginning_whitespace then
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local l1d, l2d = #doc().lines[line1], #doc().lines[line2]
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for line = line1, line2 do
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local e, rnded = get_line_indent(doc().lines[line], unindent)
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doc():remove(line, 1, line, (e or 0) + 1)
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doc():insert(line, 1,
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unindent and rnded:sub(1, #rnded - #text) or rnded .. text)
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end
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l1d, l2d = #doc().lines[line1] - l1d, #doc().lines[line2] - l2d
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if (unindent or in_beginning_whitespace) and not doc():has_selection() then
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local start_cursor = (se and se + 1 or 1) + l1d or #(doc().lines[line1])
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doc():set_selection(line1, start_cursor, line2, start_cursor, swap)
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else
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doc():set_selection(line1, col1 + l1d, line2, col2 + l2d, swap)
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end
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else
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doc():text_input(text)
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end
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end
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local commands = {
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["doc:undo"] = function()
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doc():undo()
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end,
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["doc:redo"] = function()
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doc():redo()
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end,
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["doc:cut"] = function()
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if doc():has_selection() then
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local text = doc():get_text(doc():get_selection())
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system.set_clipboard(text)
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doc():delete_to(0)
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end
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end,
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["doc:copy"] = function()
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if doc():has_selection() then
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local text = doc():get_text(doc():get_selection())
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system.set_clipboard(text)
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end
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end,
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["doc:paste"] = function()
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doc():text_input(system.get_clipboard():gsub("\r", ""))
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end,
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["doc:newline"] = function()
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local line, col = doc():get_selection()
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local indent = doc().lines[line]:match("^[\t ]*")
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if col <= #indent then
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indent = indent:sub(#indent + 2 - col)
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end
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doc():text_input("\n" .. indent)
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end,
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["doc:newline-below"] = function()
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local line = doc():get_selection()
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local indent = doc().lines[line]:match("^[\t ]*")
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doc():insert(line, math.huge, "\n" .. indent)
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doc():set_selection(line + 1, math.huge)
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end,
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["doc:newline-above"] = function()
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local line = doc():get_selection()
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local indent = doc().lines[line]:match("^[\t ]*")
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doc():insert(line, 1, indent .. "\n")
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doc():set_selection(line, math.huge)
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end,
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["doc:delete"] = function()
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local line, col = doc():get_selection()
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if not doc():has_selection() and doc().lines[line]:find("^%s*$", col) then
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doc():remove(line, col, line, math.huge)
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end
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doc():delete_to(translate.next_char)
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end,
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["doc:backspace"] = function()
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local line, col = doc():get_selection()
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if not doc():has_selection() then
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local text = doc():get_text(line, 1, line, col)
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if #text >= config.indent_size and text:find("^ *$") then
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doc():delete_to(0, -config.indent_size)
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return
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end
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end
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doc():delete_to(translate.previous_char)
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end,
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["doc:select-all"] = function()
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doc():set_selection(1, 1, math.huge, math.huge)
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end,
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["doc:select-none"] = function()
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local line, col = doc():get_selection()
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doc():set_selection(line, col)
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end,
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["doc:select-lines"] = function()
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local line1, _, line2, _, swap = doc():get_selection(true)
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append_line_if_last_line(line2)
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doc():set_selection(line1, 1, line2 + 1, 1, swap)
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end,
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["doc:select-word"] = function()
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local line1, col1 = doc():get_selection(true)
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local line1, col1 = translate.start_of_word(doc(), line1, col1)
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local line2, col2 = translate.end_of_word(doc(), line1, col1)
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doc():set_selection(line2, col2, line1, col1)
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end,
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["doc:join-lines"] = function()
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local line1, _, line2 = doc():get_selection(true)
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if line1 == line2 then line2 = line2 + 1 end
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local text = doc():get_text(line1, 1, line2, math.huge)
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text = text:gsub("(.-)\n[\t ]*", function(x)
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return x:find("^%s*$") and x or x .. " "
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end)
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doc():insert(line1, 1, text)
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doc():remove(line1, #text + 1, line2, math.huge)
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if doc():has_selection() then
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doc():set_selection(line1, math.huge)
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end
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end,
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["doc:indent"] = function()
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indent_text()
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end,
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["doc:unindent"] = function()
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indent_text(true)
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end,
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["doc:duplicate-lines"] = function()
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local line1, col1, line2, col2, swap = doc_multiline_selection(true)
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append_line_if_last_line(line2)
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local text = doc():get_text(line1, 1, line2 + 1, 1)
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doc():insert(line2 + 1, 1, text)
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local n = line2 - line1 + 1
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doc():set_selection(line1 + n, col1, line2 + n, col2, swap)
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end,
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["doc:delete-lines"] = function()
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local line1, col1, line2 = doc_multiline_selection(true)
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append_line_if_last_line(line2)
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doc():remove(line1, 1, line2 + 1, 1)
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doc():set_selection(line1, col1)
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end,
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["doc:move-lines-up"] = function()
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local line1, col1, line2, col2, swap = doc_multiline_selection(true)
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append_line_if_last_line(line2)
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if line1 > 1 then
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local text = doc().lines[line1 - 1]
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doc():insert(line2 + 1, 1, text)
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doc():remove(line1 - 1, 1, line1, 1)
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doc():set_selection(line1 - 1, col1, line2 - 1, col2, swap)
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end
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end,
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["doc:move-lines-down"] = function()
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local line1, col1, line2, col2, swap = doc_multiline_selection(true)
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append_line_if_last_line(line2 + 1)
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if line2 < #doc().lines then
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local text = doc().lines[line2 + 1]
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doc():remove(line2 + 1, 1, line2 + 2, 1)
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doc():insert(line1, 1, text)
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doc():set_selection(line1 + 1, col1, line2 + 1, col2, swap)
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end
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end,
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["doc:toggle-line-comments"] = function()
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local comment = doc().syntax.comment
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if not comment then return end
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local indentation = get_indent_string()
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local comment_text = comment .. " "
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local line1, _, line2 = doc_multiline_selection(true)
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local uncomment = true
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local start_offset = math.huge
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for line = line1, line2 do
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local text = doc().lines[line]
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local s = text:find("%S")
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local cs, ce = text:find(comment_text, s, true)
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if s and cs ~= s then
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uncomment = false
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start_offset = math.min(start_offset, s)
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end
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end
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for line = line1, line2 do
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local text = doc().lines[line]
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local s = text:find("%S")
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if uncomment then
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local cs, ce = text:find(comment_text, s, true)
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if ce then
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doc():remove(line, cs, line, ce + 1)
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end
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elseif s then
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doc():insert(line, start_offset, comment_text)
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end
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end
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end,
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["doc:upper-case"] = function()
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doc():replace(string.upper)
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end,
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["doc:lower-case"] = function()
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doc():replace(string.lower)
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end,
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["doc:go-to-line"] = function()
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local dv = dv()
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local items
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local function init_items()
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if items then return end
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items = {}
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local mt = { __tostring = function(x) return x.text end }
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for i, line in ipairs(dv.doc.lines) do
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local item = { text = line:sub(1, -2), line = i, info = "line: " .. i }
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table.insert(items, setmetatable(item, mt))
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end
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end
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core.command_view:enter("Go To Line", function(text, item)
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local line = item and item.line or tonumber(text)
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if not line then
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core.error("Invalid line number or unmatched string")
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return
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end
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dv.doc:set_selection(line, 1 )
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dv:scroll_to_line(line, true)
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end, function(text)
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if not text:find("^%d*$") then
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init_items()
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return common.fuzzy_match(items, text)
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end
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end)
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end,
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["doc:toggle-line-ending"] = function()
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doc().crlf = not doc().crlf
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end,
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["doc:save-as"] = function()
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local last_doc = core.last_active_view and core.last_active_view.doc
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if doc().filename then
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core.command_view:set_text(doc().filename)
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elseif last_doc and last_doc.filename then
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local dirname, filename = core.last_active_view.doc.abs_filename:match("(.*)[/\\](.+)$")
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core.command_view:set_text(core.normalize_to_project_dir(dirname) .. PATHSEP)
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end
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core.command_view:enter("Save As", function(filename)
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save(common.home_expand(filename))
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end, function (text)
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return common.home_encode_list(common.path_suggest(common.home_expand(text)))
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end)
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end,
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["doc:save"] = function()
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if doc().filename then
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save()
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else
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command.perform("doc:save-as")
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end
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end,
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["doc:rename"] = function()
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local old_filename = doc().filename
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if not old_filename then
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core.error("Cannot rename unsaved doc")
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return
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end
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core.command_view:set_text(old_filename)
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core.command_view:enter("Rename", function(filename)
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doc():save(filename)
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core.log("Renamed \"%s\" to \"%s\"", old_filename, filename)
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if filename ~= old_filename then
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os.remove(old_filename)
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end
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end, common.path_suggest)
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end,
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}
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local translations = {
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["previous-char"] = translate.previous_char,
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["next-char"] = translate.next_char,
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["previous-word-start"] = translate.previous_word_start,
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["next-word-end"] = translate.next_word_end,
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["previous-block-start"] = translate.previous_block_start,
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["next-block-end"] = translate.next_block_end,
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["start-of-doc"] = translate.start_of_doc,
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["end-of-doc"] = translate.end_of_doc,
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["start-of-line"] = translate.start_of_line,
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["end-of-line"] = translate.end_of_line,
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["start-of-word"] = translate.start_of_word,
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["end-of-word"] = translate.end_of_word,
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["previous-line"] = DocView.translate.previous_line,
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["next-line"] = DocView.translate.next_line,
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["previous-page"] = DocView.translate.previous_page,
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["next-page"] = DocView.translate.next_page,
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}
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for name, fn in pairs(translations) do
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commands["doc:move-to-" .. name] = function() doc():move_to(fn, dv()) end
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commands["doc:select-to-" .. name] = function() doc():select_to(fn, dv()) end
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commands["doc:delete-to-" .. name] = function() doc():delete_to(fn, dv()) end
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end
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commands["doc:move-to-previous-char"] = function()
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if doc():has_selection() then
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local line, col = doc():get_selection(true)
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doc():set_selection(line, col)
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else
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doc():move_to(translate.previous_char)
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end
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end
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commands["doc:move-to-next-char"] = function()
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if doc():has_selection() then
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local _, _, line, col = doc():get_selection(true)
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doc():set_selection(line, col)
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else
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doc():move_to(translate.next_char)
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end
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end
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command.add("core.docview", commands)
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