469 lines
18 KiB
Zig
469 lines
18 KiB
Zig
const std = @import("std");
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const log = @import("log");
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const tp = @import("thespian");
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const location_history = @import("location_history");
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const command = @import("command");
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const cmd = command.executeName;
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const tui = @import("../tui.zig");
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const Editor = @import("../editor.zig").Editor;
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const CurSel = @import("../editor.zig").CurSel;
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const Buffer = @import("Buffer");
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const Cursor = Buffer.Cursor;
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const Selection = Buffer.Selection;
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var commands: Commands = undefined;
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pub fn init() !void {
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var v: void = {};
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try commands.init(&v);
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}
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pub fn deinit() void {
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commands.deinit();
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}
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const Commands = command.Collection(cmds_);
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const cmds_ = struct {
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pub const Target = void;
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const Ctx = command.Context;
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const Meta = command.Metadata;
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const Result = command.Result;
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pub fn w(_: *void, _: Ctx) Result {
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try cmd("save_file", .{});
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}
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pub const w_meta: Meta = .{ .description = "w (write/save file)" };
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pub fn q(_: *void, _: Ctx) Result {
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try cmd("quit", .{});
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}
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pub const q_meta: Meta = .{ .description = "q (quit)" };
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pub fn qa(_: *void, _: Ctx) Result {
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try cmd("quit", .{});
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}
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pub const qa_meta: Meta = .{ .description = "qa (close all)" };
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pub fn @"q!"(_: *void, _: Ctx) Result {
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try cmd("quit_without_saving", .{});
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}
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pub const @"q!_meta": Meta = .{ .description = "q! (quit without saving)" };
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pub fn @"qa!"(_: *void, _: Ctx) Result {
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try cmd("quit_without_saving", .{});
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}
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pub const @"qa!_meta": Meta = .{ .description = "qa! (quit without saving)" };
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pub fn wq(_: *void, _: Ctx) Result {
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try cmd("save_file", command.fmt(.{ "then", .{ "quit", .{} } }));
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}
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pub const wq_meta: Meta = .{ .description = "wq (write/save file and quit)" };
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pub fn @"x!"(_: *void, _: Ctx) Result {
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try cmd("save_file", command.fmt(.{ "then", .{ "quit_without_saving", .{} } }));
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}
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pub const @"x!_meta": Meta = .{ .description = "x! (write/save file and exit, ignoring other unsaved changes)" };
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pub fn x(_: *void, _: Ctx) Result {
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try cmd("save_file", command.fmt(.{ "then", .{ "quit", .{} } }));
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}
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pub const x_meta: Meta = .{ .description = "x (write/save file and quit)" };
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pub fn wa(_: *void, _: Ctx) Result {
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if (tui.get_buffer_manager()) |bm|
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bm.save_all() catch |e| return tp.exit_error(e, @errorReturnTrace());
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}
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pub const wa_meta: Meta = .{ .description = "wa (save all)" };
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pub fn xa(_: *void, _: Ctx) Result {
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if (tui.get_buffer_manager()) |bm| {
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bm.save_all() catch |e| return tp.exit_error(e, @errorReturnTrace());
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try cmd("quit", .{});
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}
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}
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pub const xa_meta: Meta = .{ .description = "xa (write all and quit)" };
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pub fn @"xa!"(_: *void, _: Ctx) Result {
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if (tui.get_buffer_manager()) |bm| {
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bm.save_all() catch {};
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try cmd("quit_without_saving", .{});
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}
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}
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pub const @"xa!_meta": Meta = .{ .description = "xa! (write all and exit, ignoring other unsaved changes)" };
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pub fn wqa(_: *void, _: Ctx) Result {
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if (tui.get_buffer_manager()) |bm|
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bm.save_all() catch |e| return tp.exit_error(e, @errorReturnTrace());
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try cmd("quit", .{});
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}
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pub const wqa_meta: Meta = .{ .description = "wqa (write all and quit)" };
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pub fn @"wqa!"(_: *void, _: Ctx) Result {
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if (tui.get_buffer_manager()) |bm| {
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bm.save_all() catch {};
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try cmd("quit_without_saving", .{});
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}
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}
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pub const @"wqa!_meta": Meta = .{ .description = "wqa! (write all and exit, ignoring unsaved changes)" };
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pub fn rl(_: *void, _: Ctx) Result {
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try cmd("reload_file", .{});
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}
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pub const rl_meta: Meta = .{ .description = "rl (reload current file)" };
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pub fn rla(_: *void, _: Ctx) Result {
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if (tui.get_buffer_manager()) |bm|
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bm.reload_all() catch |e| return tp.exit_error(e, @errorReturnTrace());
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}
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pub const rla_meta: Meta = .{ .description = "rla (reload all files)" };
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pub fn o(_: *void, _: Ctx) Result {
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try cmd("open_file", .{});
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}
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pub const o_meta: Meta = .{ .description = "o (open file)" };
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pub fn @"wq!"(_: *void, _: Ctx) Result {
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cmd("save_file", .{}) catch {};
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try cmd("quit_without_saving", .{});
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}
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pub const @"wq!_meta": Meta = .{ .description = "wq! (write/save file and quit without saving)" };
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pub fn n(_: *void, _: Ctx) Result {
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try cmd("create_new_file", .{});
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}
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pub const n_meta: Meta = .{ .description = "n (Create new buffer/tab)" };
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pub fn bn(_: *void, _: Ctx) Result {
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try cmd("next_tab", .{});
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}
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pub const bn_meta: Meta = .{ .description = "bn (Next buffer/tab)" };
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pub fn bp(_: *void, _: Ctx) Result {
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try cmd("previous_tab", .{});
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}
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pub const bp_meta: Meta = .{ .description = "bp (Previous buffer/tab)" };
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pub fn bc(_: *void, _: Ctx) Result {
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try cmd("delete_buffer", .{});
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}
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pub const bc_meta: Meta = .{ .description = "bc (Close buffer/tab)" };
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pub fn @"bc!"(_: *void, _: Ctx) Result {
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try cmd("close_file_without_saving", .{});
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}
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pub const @"bc!_meta": Meta = .{ .description = "bc! (Close buffer/tab, ignoring changes)" };
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pub fn @"bco!"(_: *void, _: Ctx) Result {
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const mv = tui.mainview() orelse return;
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if (tui.get_buffer_manager()) |bm| {
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if (mv.get_active_buffer()) |buffer| try bm.delete_others(buffer);
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}
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}
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pub const @"bco!_meta": Meta = .{ .description = "bco! (Close other buffers/tabs, discarding changes)" };
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pub fn bco(_: *void, _: Ctx) Result {
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const logger = log.logger("helix-mode");
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defer logger.deinit();
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const mv = tui.mainview() orelse return;
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const bm = tui.get_buffer_manager() orelse return;
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if (mv.get_active_buffer()) |buffer| {
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const remaining = try bm.close_others(buffer);
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if (remaining > 0) {
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logger.print("{} unsaved buffer(s) remaining", .{remaining});
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try cmd("next_tab", .{});
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}
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}
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}
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pub const bco_meta: Meta = .{ .description = "bco (Close other buffers/tabs)" };
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pub fn save_selection(_: *void, _: Ctx) Result {
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const logger = log.logger("helix-mode");
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defer logger.deinit();
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logger.print("saved location", .{});
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const mv = tui.mainview() orelse return;
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const file_path = mv.get_active_file_path() orelse return;
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const primary = (mv.get_active_editor() orelse return).get_primary();
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const sel: ?location_history.Selection = if (primary.selection) |sel| .{
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.begin = .{ .row = sel.begin.row, .col = sel.begin.col },
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.end = .{ .row = sel.end.row, .col = sel.end.col },
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} else null;
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mv.location_history_.update(file_path, .{
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.row = primary.cursor.row + 1,
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.col = primary.cursor.col + 1,
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}, sel);
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}
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pub const save_selection_meta: Meta = .{ .description = "Save current selection to location history" };
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pub fn extend_line_below(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = try ed.buf_root();
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var repeat: usize = 1;
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_ = ctx.args.match(.{tp.extract(&repeat)}) catch false;
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while (repeat > 0) : (repeat -= 1) {
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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const sel = cursel.enable_selection_normal();
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sel.normalize();
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try Editor.move_cursor_begin(root, &sel.begin, ed.metrics);
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try Editor.move_cursor_end(root, &sel.end, ed.metrics);
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try Editor.move_cursor_right(root, &sel.end, ed.metrics);
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cursel.cursor = sel.end;
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};
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}
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ed.clamp();
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}
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pub const extend_line_below_meta: Meta = .{ .arguments = &.{.integer}, .description = "Select current line, if already selected, extend to next line" };
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pub fn move_next_word_start(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = try ed.buf_root();
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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cursel.selection = null;
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};
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ed.with_selections_const_repeat(root, Editor.move_cursor_word_right_vim, ctx) catch {};
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ed.clamp();
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}
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pub const move_next_word_start_meta: Meta = .{ .description = "Move next word start", .arguments = &.{.integer} };
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pub fn move_prev_word_start(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = try ed.buf_root();
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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cursel.selection = null;
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};
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ed.with_selections_const_repeat(root, move_cursor_word_left_helix, ctx) catch {};
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ed.clamp();
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}
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pub const move_prev_word_start_meta: Meta = .{ .description = "Move previous word start", .arguments = &.{.integer} };
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pub fn move_next_word_end(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = try ed.buf_root();
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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cursel.selection = null;
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};
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ed.with_selections_const_repeat(root, move_cursor_word_right_end_helix, ctx) catch {};
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ed.clamp();
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}
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pub const move_next_word_end_meta: Meta = .{ .description = "Move next word end", .arguments = &.{.integer} };
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pub fn cut_forward_internal_inclusive(_: *void, _: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const b = try ed.buf_for_update();
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const text, const root = try ed.cut_to(move_noop, b.root);
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ed.set_clipboard_internal(text);
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try ed.update_buf(root);
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ed.clamp();
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}
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pub const cut_forward_internal_inclusive_meta: Meta = .{ .description = "Cut next character to internal clipboard (inclusive)" };
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pub fn select_right_helix(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = try ed.buf_root();
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var repeat: usize = 1;
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_ = ctx.args.match(.{tp.extract(&repeat)}) catch false;
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while (repeat > 0) : (repeat -= 1) {
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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const sel = try cursel.enable_selection(root, ed.metrics);
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// handling left to right transition
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const sel_begin: i32 = @intCast(sel.begin.col);
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const sel_end: i32 = @intCast(sel.end.col);
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if ((sel_begin - sel_end) == 1 and sel.begin.row == sel.end.row) {
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try Editor.move_cursor_right(root, &sel.end, ed.metrics);
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sel.begin.col -= 1;
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}
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try Editor.move_cursor_right(root, &sel.end, ed.metrics);
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cursel.cursor = sel.end;
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cursel.check_selection(root, ed.metrics);
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};
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}
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ed.clamp();
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}
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pub const select_right_helix_meta: Meta = .{ .description = "Select right", .arguments = &.{.integer} };
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pub fn select_left_helix(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = try ed.buf_root();
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var repeat: usize = 1;
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_ = ctx.args.match(.{tp.extract(&repeat)}) catch false;
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while (repeat > 0) : (repeat -= 1) {
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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if (cursel.selection == null) {
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cursel.selection = Selection.from_cursor(&cursel.cursor);
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try cursel.selection.?.begin.move_right(root, ed.metrics);
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}
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if (cursel.selection) |*sel| {
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try Editor.move_cursor_left(root, &sel.end, ed.metrics);
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cursel.cursor = sel.end;
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if (sel.begin.col == sel.end.col and sel.begin.row == sel.end.row) {
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try sel.begin.move_right(root, ed.metrics);
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try Editor.move_cursor_left(root, &sel.end, ed.metrics);
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cursel.cursor = sel.end;
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}
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}
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cursel.check_selection(root, ed.metrics);
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};
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}
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ed.clamp();
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}
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pub const select_left_helix_meta: Meta = .{ .description = "Select left", .arguments = &.{.integer} };
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pub fn select_to_char_right_helix(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = try ed.buf_root();
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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const sel = try cursel.enable_selection(root, ed.metrics);
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try Editor.move_cursor_to_char_right(root, &sel.end, ctx, ed.metrics);
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try Editor.move_cursor_right(root, &sel.end, ed.metrics);
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cursel.cursor = sel.end;
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cursel.check_selection(root, ed.metrics);
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};
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ed.clamp();
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}
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pub const select_to_char_right_helix_meta: Meta = .{ .description = "Move to char right" };
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pub fn copy_helix(_: *void, _: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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const root = ed.buf_root() catch return;
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var first = true;
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var buffer: std.Io.Writer.Allocating = .init(ed.allocator);
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defer buffer.deinit();
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const writer = &buffer.writer;
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if (ed.get_primary().selection) |sel| if (sel.begin.col == 0 and sel.end.row > sel.begin.row) try writer.writeAll("\n");
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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if (cursel.selection) |sel| {
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const copy_text = try Editor.copy_selection(root, sel, ed.allocator, ed.metrics);
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if (first) {
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first = false;
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} else {
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try writer.writeAll("\n");
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}
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try writer.writeAll(copy_text);
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}
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};
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const text = buffer.toOwnedSlice() catch &.{};
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if (text.len > 0) {
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if (text.len > 100) {
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ed.logger.print("copy:{f}...", .{std.ascii.hexEscape(text[0..100], .lower)});
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} else {
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ed.logger.print("copy:{f}", .{std.ascii.hexEscape(text, .lower)});
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}
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ed.set_clipboard_internal(text);
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}
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}
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pub const copy_helix_meta: Meta = .{ .description = "Copy selection to clipboard (helix)" };
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pub fn paste_after(_: *void, ctx: Ctx) Result {
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const mv = tui.mainview() orelse return;
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const ed = mv.get_active_editor() orelse return;
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var text: []const u8 = undefined;
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if (!(ctx.args.buf.len > 0 and try ctx.args.match(.{tp.extract(&text)}))) {
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if (tui.get_clipboard()) |text_| text = text_ else return;
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}
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ed.logger.print("paste: {d} bytes", .{text.len});
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const b = try ed.buf_for_update();
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var root = b.root;
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if (std.mem.eql(u8, text[text.len - 1 ..], "\n")) text = text[0 .. text.len - 1];
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if (std.mem.indexOfScalar(u8, text, '\n') != null and text[0] == '\n') {
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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root = try insert_line(ed, root, cursel, text, b.allocator);
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};
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} else {
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for (ed.cursels.items) |*cursel_| if (cursel_.*) |*cursel| {
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root = try insert(ed, root, cursel, text, b.allocator);
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};
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}
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try ed.update_buf(root);
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ed.clamp();
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ed.need_render();
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}
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pub const paste_after_meta: Meta = .{ .description = "Paste from clipboard after selection" };
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};
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fn move_cursor_word_left_helix(root: Buffer.Root, cursor: *Cursor, metrics: Buffer.Metrics) error{Stop}!void {
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try Editor.move_cursor_left(root, cursor, metrics);
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// Consume " "
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while (Editor.is_whitespace_at_cursor(root, cursor, metrics)) {
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try Editor.move_cursor_left(root, cursor, metrics);
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}
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var next = cursor.*;
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next.move_left(root, metrics) catch return;
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var next_next = next;
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next_next.move_left(root, metrics) catch return;
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const cur = next.test_at(root, Editor.is_not_word_char, metrics);
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const nxt = next_next.test_at(root, Editor.is_not_word_char, metrics);
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if (cur != nxt) {
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try Editor.move_cursor_left(root, cursor, metrics);
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return;
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} else {
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try move_cursor_word_left_helix(root, cursor, metrics);
|
|
}
|
|
}
|
|
|
|
fn move_noop(_: Buffer.Root, _: *Cursor, _: Buffer.Metrics) error{Stop}!void {}
|
|
|
|
fn move_cursor_word_right_end_helix(root: Buffer.Root, cursor: *Cursor, metrics: Buffer.Metrics) error{Stop}!void {
|
|
try Editor.move_cursor_right(root, cursor, metrics);
|
|
Editor.move_cursor_right_until(root, cursor, Editor.is_word_boundary_right_vim, metrics);
|
|
try cursor.move_right(root, metrics);
|
|
}
|
|
|
|
fn insert(ed: *Editor, root: Buffer.Root, cursel: *CurSel, s: []const u8, allocator: std.mem.Allocator) !Buffer.Root {
|
|
var root_ = root;
|
|
const cursor = &cursel.cursor;
|
|
if (cursel.selection == null) cursor.move_right(root_, ed.metrics) catch {};
|
|
const begin = cursel.cursor;
|
|
cursor.row, cursor.col, root_ = try root_.insert_chars(cursor.row, cursor.col, s, allocator, ed.metrics);
|
|
cursor.target = cursor.col;
|
|
ed.nudge_insert(.{ .begin = begin, .end = cursor.* }, cursel, s.len);
|
|
cursel.selection = Selection{ .begin = begin, .end = cursor.* };
|
|
return root_;
|
|
}
|
|
|
|
fn insert_line(ed: *Editor, root: Buffer.Root, cursel: *CurSel, s: []const u8, allocator: std.mem.Allocator) !Buffer.Root {
|
|
var root_ = root;
|
|
const cursor = &cursel.cursor;
|
|
cursel.disable_selection(root, ed.metrics);
|
|
cursel.cursor.move_end(root, ed.metrics);
|
|
var begin = cursel.cursor;
|
|
begin.move_right(root, ed.metrics) catch {};
|
|
cursor.row, cursor.col, root_ = try root_.insert_chars(cursor.row, cursor.col, s, allocator, ed.metrics);
|
|
cursor.target = cursor.col;
|
|
cursel.selection = Selection{ .begin = begin, .end = cursor.* };
|
|
return root_;
|
|
}
|