Add support for selecting and exporting selections in display columns
Fixes #2724
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@ -347,8 +347,12 @@ but not really useful in that context.
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*-codepoint*::
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provided columns are to be interpreted as codepoint counts, not byte counts.
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This is only valid if *-timestamp* matches the current buffer timestamp (or
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is not specified).
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*-display-column*::
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provided columns are to be interpreted as display column counts, not byte counts.
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both *-codepoint* and *-display-column* are only valid if *-timestamp*
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matches the current buffer timestamp (or is not specified).
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*debug* {info,buffers,options,memory,shared-strings,profile-hash-maps,faces,mappings}::
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print some debug information in the *\*debug** buffer
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@ -317,6 +317,12 @@ The following expansions are supported (with required context _in italics_):
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`%val{selection_desc}`, except that the columns are in codepoints rather
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than bytes
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*%val{selections_display_column_desc}*::
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_in window scope_ +
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unquoted list of the ranges of all selections, in the same format as
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`%val{selection_desc}`, except that the columns are in display columns rather
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than bytes
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*%val{selections_desc}*::
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_in window scope_ +
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unquoted list of the ranges of all selections, in the same format as
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@ -163,8 +163,9 @@ Buffer* create_fifo_buffer(String name, int fd, Buffer::Flags flags, bool scroll
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if (insert_coord != buffer->back_coord())
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{
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buffer->run_hook_in_own_context(Hook::BufReadFifo,
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selection_to_string({insert_coord, buffer->back_coord()}));
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buffer->run_hook_in_own_context(
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Hook::BufReadFifo,
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selection_to_string(ColumnType::Byte, *buffer, {insert_coord, buffer->back_coord()}));
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}
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if (closed)
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@ -2330,10 +2330,10 @@ const CommandDesc select_cmd = {
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"select <selection_desc>...: select given selections\n"
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"\n"
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"selection_desc format is <anchor_line>.<anchor_column>,<cursor_line>.<cursor_column>",
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ParameterDesc{
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{
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ParameterDesc{{
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{"timestamp", {true, "specify buffer timestamp at which those selections are valid"}},
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{"codepoint", {false, "columns are specified in codepoints, not bytes"}}
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{"codepoint", {false, "columns are specified in codepoints, not bytes"}},
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{"display-column", {false, "columns are specified in display columns, not bytes"}}
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},
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ParameterDesc::Flags::SwitchesOnlyAtStart, 1
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},
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@ -2344,7 +2344,12 @@ const CommandDesc select_cmd = {
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{
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auto& buffer = context.buffer();
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const size_t timestamp = parser.get_switch("timestamp").map(str_to_int_ifp).cast<size_t>().value_or(buffer.timestamp());
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context.selections_write_only() = selection_list_from_strings(buffer, (bool)parser.get_switch("codepoint"), parser.positionals_from(0), timestamp, 0);
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ColumnType column_type = ColumnType::Byte;
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if (parser.get_switch("codepoint"))
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column_type = ColumnType::Codepoint;
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else if (parser.get_switch("display-column"))
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column_type = ColumnType::DisplayColumn;
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context.selections_write_only() = selection_list_from_strings(buffer, column_type, parser.positionals_from(0), timestamp, 0);
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}
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};
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18
src/main.cc
18
src/main.cc
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@ -248,15 +248,20 @@ static const EnvVarDesc builtin_env_vars[] = { {
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}, {
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"selection_desc", false,
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[](StringView name, const Context& context, Quoting quoting)
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{ return selection_to_string(context.selections().main()); }
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{ return selection_to_string(ColumnType::Byte, context.buffer(),
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context.selections().main()); }
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}, {
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"selections_desc", false,
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[](StringView name, const Context& context, Quoting quoting)
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{ return selection_list_to_string(false, context.selections()); }
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{ return selection_list_to_string(ColumnType::Byte, context.selections()); }
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}, {
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"selections_char_desc", false,
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[](StringView name, const Context& context, Quoting quoting)
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{ return selection_list_to_string(true, context.selections()); }
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{ return selection_list_to_string(ColumnType::Codepoint, context.selections()); }
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}, {
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"selections_display_column_desc", false,
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[](StringView name, const Context& context, Quoting quoting)
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{ return selection_list_to_string(ColumnType::DisplayColumn, context.selections()); }
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}, {
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"selection_length", false,
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[](StringView name, const Context& context, Quoting quoting) -> String
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@ -795,9 +800,10 @@ int run_server(StringView session, StringView server_init,
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else if (convert_to_client_pending)
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{
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kak_assert(local_client);
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const String client_name = local_client->context().name();
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const String buffer_name = local_client->context().buffer().name();
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const String selections = selection_list_to_string(false, local_client->context().selections());
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auto& local_context = local_client->context();
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const String client_name = local_context.name();
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const String buffer_name = local_context.buffer().name();
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const String selections = selection_list_to_string(ColumnType::Byte, local_context.selections());
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ClientManager::instance().remove_client(*local_client, true, 0);
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client_manager.clear_client_trash();
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@ -1774,7 +1774,7 @@ SelectionList read_selections_from_register(char reg, Context& context)
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const size_t timestamp = str_to_int(desc[1]);
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size_t main = str_to_int(desc[2]);
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return selection_list_from_strings(buffer, false, content | skip(1), timestamp, main);
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return selection_list_from_strings(buffer, ColumnType::Byte, content | skip(1), timestamp, main);
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}
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enum class CombineOp
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@ -1889,8 +1889,9 @@ void save_selections(Context& context, NormalParams params)
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auto save_to_reg = [reg](Context& context, const SelectionList& sels) {
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auto& buffer = context.buffer();
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auto to_string = [&] (const Selection& sel) { return selection_to_string(ColumnType::Byte, buffer, sel); };
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auto descs = concatenated(ConstArrayView<String>{format("{}@{}@{}", buffer.name(), buffer.timestamp(), sels.main_index())},
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sels | transform(selection_to_string)) | gather<Vector<String>>();
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sels | transform(to_string)) | gather<Vector<String>>();
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RegisterManager::instance()[reg].set(context, descs);
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context.print_status({format("{} {} selections to register '{}'",
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@ -472,31 +472,34 @@ void SelectionList::erase()
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m_buffer->check_invariant();
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}
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String selection_to_string(const Selection& selection)
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String selection_to_string(ColumnType column_type, const Buffer& buffer, const Selection& selection)
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{
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const auto& cursor = selection.cursor();
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const auto& anchor = selection.anchor();
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return format("{}.{},{}.{}", anchor.line + 1, anchor.column + 1,
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cursor.line + 1, cursor.column + 1);
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switch (column_type)
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{
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default:
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case ColumnType::Byte:
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return format("{}.{},{}.{}", anchor.line + 1, anchor.column + 1,
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cursor.line + 1, cursor.column + 1);
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case ColumnType::Codepoint:
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return format("{}.{},{}.{}",
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anchor.line + 1, buffer[anchor.line].char_count_to(anchor.column) + 1,
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cursor.line + 1, buffer[cursor.line].char_count_to(cursor.column) + 1);
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case ColumnType::DisplayColumn:
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return format("{}.{},{}.{}",
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anchor.line + 1, buffer[anchor.line].column_count_to(anchor.column) + 1,
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cursor.line + 1, buffer[cursor.line].column_count_to(cursor.column) + 1);
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}
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}
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String selection_to_string_char(const Buffer& buffer, const Selection& selection)
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{
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const auto& cursor = selection.cursor();
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const auto& anchor = selection.anchor();
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return format("{}.{},{}.{}",
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anchor.line + 1, buffer[anchor.line].char_count_to(anchor.column) + 1,
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cursor.line + 1, buffer[cursor.line].char_count_to(cursor.column) + 1);
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}
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String selection_list_to_string(bool char_columns, const SelectionList& selections)
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String selection_list_to_string(ColumnType column_type, const SelectionList& selections)
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{
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auto& buffer = selections.buffer();
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kak_assert(selections.timestamp() == buffer.timestamp());
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auto to_string = [&](const Selection& selection) {
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return char_columns ? selection_to_string_char(buffer, selection)
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: selection_to_string(selection);
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return selection_to_string(column_type, buffer, selection);
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};
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auto beg = &*selections.begin(), end = &*selections.end();
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@ -506,8 +509,7 @@ String selection_list_to_string(bool char_columns, const SelectionList& selectio
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transform(to_string), ' ', false);
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}
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template<typename ComputeCoord>
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Selection selection_from_string_impl(StringView desc, ComputeCoord compute_coord)
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Selection selection_from_string(ColumnType column_type, const Buffer& buffer, StringView desc)
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{
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auto comma = find(desc, ',');
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auto dot_anchor = find(StringView{desc.begin(), comma}, '.');
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@ -516,6 +518,24 @@ Selection selection_from_string_impl(StringView desc, ComputeCoord compute_coord
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if (comma == desc.end() or dot_anchor == comma or dot_cursor == desc.end())
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throw runtime_error(format("'{}' does not follow <line>.<column>,<line>.<column> format", desc));
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auto compute_coord = [&](int line, int column) -> BufferCoord {
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if (line < 0 or column < 0)
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throw runtime_error(format("coordinate {}.{} does exist in buffer", line, column));
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switch (column_type)
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{
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default:
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case ColumnType::Byte: return {line, column};
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case ColumnType::Codepoint:
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if (buffer.line_count() <= line or buffer[line].char_length() <= column)
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throw runtime_error(format("coordinate {}.{} does exist in buffer", line, column));
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return {line, buffer[line].byte_count_to(CharCount{column})};
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case ColumnType::DisplayColumn:
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if (buffer.line_count() <= line or buffer[line].column_length() <= column)
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throw runtime_error(format("coordinate {}.{} does exist in buffer", line, column));
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return {line, buffer[line].byte_count_to(ColumnCount{column})};
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}
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};
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auto anchor = compute_coord(str_to_int({desc.begin(), dot_anchor}) - 1,
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str_to_int({dot_anchor+1, comma}) - 1);
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@ -523,29 +543,7 @@ Selection selection_from_string_impl(StringView desc, ComputeCoord compute_coord
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auto cursor = compute_coord(str_to_int({comma+1, dot_cursor}) - 1,
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str_to_int({dot_cursor+1, desc.end()}) - 1);
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if (anchor.line < 0 or anchor.column < 0 or
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cursor.line < 0 or cursor.column < 0)
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throw runtime_error(format("coordinates must be >= 1: '{}'", desc));
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return Selection{anchor, cursor};
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}
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Selection selection_from_string(StringView desc)
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{
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return selection_from_string_impl(desc, [](int line, int column) {
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return BufferCoord{line, column};
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});
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}
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Selection selection_from_string_char(const Buffer& buffer, StringView desc)
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{
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return selection_from_string_impl(desc, [&](int line, int column) {
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if (line < 0 or buffer.line_count() <= line or
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column < 0 or buffer[line].char_length() <= column)
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throw runtime_error(format("coordinate {}.{} does exist in buffer", line, column));
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return BufferCoord{line, buffer[line].byte_count_to(CharCount{column})};
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});
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}
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}
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@ -156,22 +156,26 @@ private:
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Vector<Selection> compute_modified_ranges(const Buffer& buffer, size_t timestamp);
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Selection selection_from_string(StringView desc);
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Selection selection_from_string_char(const Buffer& buffer, StringView desc);
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String selection_to_string(const Selection& selection);
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String selection_to_string_char(const Buffer& buffer, const Selection& selection);
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enum class ColumnType
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{
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Byte,
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Codepoint,
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DisplayColumn
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};
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String selection_list_to_string(bool char_columns, const SelectionList& selections);
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Selection selection_from_string(ColumnType column_type, const Buffer& buffer, StringView desc);
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String selection_to_string(ColumnType column_type, const Buffer& buffer, const Selection& selection);
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String selection_list_to_string(ColumnType column_type, const SelectionList& selections);
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template<typename StringArray>
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SelectionList selection_list_from_strings(Buffer& buffer, bool char_columns, StringArray&& descs, size_t timestamp, size_t main)
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SelectionList selection_list_from_strings(Buffer& buffer, ColumnType column_type, StringArray&& descs, size_t timestamp, size_t main)
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{
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if ((char_columns and timestamp != buffer.timestamp()) or timestamp > buffer.timestamp())
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if ((column_type != ColumnType::Byte and timestamp != buffer.timestamp()) or timestamp > buffer.timestamp())
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throw runtime_error{format("invalid timestamp '{}'", timestamp)};
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auto from_string = [&](StringView desc) {
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return char_columns ? selection_from_string_char(buffer, desc)
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: selection_from_string(desc);
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return selection_from_string(column_type, buffer, desc);
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};
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auto sels = descs | transform(from_string) | gather<Vector<Selection>>();
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