mirror of
https://github.com/LadybirdBrowser/ladybird.git
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5e1499d104
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).
This commit is auto-generated:
$ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
Meta Ports Ladybird Tests Kernel)
$ perl -pie 's/\bDeprecatedString\b/ByteString/g;
s/deprecated_string/byte_string/g' $xs
$ clang-format --style=file -i \
$(git diff --name-only | grep \.cpp\|\.h)
$ gn format $(git ls-files '*.gn' '*.gni')
94 lines
3.3 KiB
C++
94 lines
3.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/ByteString.h>
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#include <AK/Vector.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <LibMain/Main.h>
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enum NumberStyle {
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NumberAllLines,
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NumberNonEmptyLines,
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NumberNoLines,
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};
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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NumberStyle number_style = NumberNonEmptyLines;
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int increment = 1;
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StringView separator = " "sv;
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int start_number = 1;
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int number_width = 6;
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Vector<StringView> filenames;
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Core::ArgsParser args_parser;
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Core::ArgsParser::Option number_style_option {
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Core::ArgsParser::OptionArgumentMode::Required,
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"Line numbering style: 't' for non-empty lines, 'a' for all lines, 'n' for no lines",
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"body-numbering",
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'b',
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"style",
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[&number_style](StringView s) {
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if (s == "t"sv)
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number_style = NumberNonEmptyLines;
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else if (s == "a"sv)
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number_style = NumberAllLines;
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else if (s == "n"sv)
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number_style = NumberNoLines;
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else
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return false;
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return true;
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}
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};
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args_parser.add_option(move(number_style_option));
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args_parser.add_option(increment, "Line count increment", "increment", 'i', "number");
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args_parser.add_option(separator, "Separator between line numbers and lines", "separator", 's', "string");
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args_parser.add_option(start_number, "Initial line number", "startnum", 'v', "number");
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args_parser.add_option(number_width, "Number width", "width", 'w', "number");
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args_parser.add_positional_argument(filenames, "Files to process", "file", Core::ArgsParser::Required::No);
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args_parser.parse(arguments);
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if (filenames.is_empty())
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filenames.append(""sv);
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for (auto const filename : filenames) {
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auto maybe_file = Core::File::open_file_or_standard_stream(filename, Core::File::OpenMode::Read);
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if (maybe_file.is_error()) {
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warnln("Failed to open {}: {}", filename, maybe_file.release_error());
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continue;
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}
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auto file = maybe_file.release_value();
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int line_number = start_number - increment; // so the line number can start at 1 when added below
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Optional<u8> previous_character;
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u8 next_character;
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for (Bytes bytes = TRY(file->read_some({ &next_character, 1 })); bytes.size() != 0; bytes = TRY(file->read_some(bytes))) {
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if (!previous_character.has_value() || previous_character == '\n') {
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if (next_character == '\n' && number_style != NumberAllLines) {
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// Skip printing line count on empty lines.
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outln();
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continue;
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}
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if (number_style != NumberNoLines)
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out("{1:{0}}{2}", number_width, (line_number += increment), separator);
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else
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out("{1:{0}}", number_width, "");
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}
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putchar(next_character);
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previous_character = next_character;
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}
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if (previous_character.has_value() && previous_character != '\n')
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outln(); // for cases where files have no trailing newline
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}
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return 0;
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}
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