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')
62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021, Luke Wilde <lukew@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/CharacterTypes.h>
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#include <LibIMAP/QuotedPrintable.h>
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#include <LibTest/TestCase.h>
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TEST_CASE(test_decode)
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{
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auto decode_equal = [](StringView input, StringView expected) {
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auto decoded = MUST(IMAP::decode_quoted_printable(input));
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EXPECT(decoded.bytes() == expected.bytes());
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};
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auto decode_equal_byte_buffer = [](StringView input, StringView expected) {
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auto decoded = MUST(IMAP::decode_quoted_printable(input));
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EXPECT(decoded.bytes() == expected.bytes());
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};
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decode_equal("hello world"sv, "hello world"sv);
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decode_equal("=3D"sv, "="sv);
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decode_equal("hello=\r\n world"sv, "hello world"sv);
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decode_equal("=68=65=6C=6C=6F=20=\r\n=77=6F=72=6C=64"sv, "hello world"sv);
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// Doesn't mistake hex sequences without a preceding '=' as an escape sequence.
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decode_equal("4A=4B=4C4D"sv, "4AKL4D"sv);
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// Allows lowercase escape sequences.
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decode_equal("=4a=4b=4c=4d=4e=4f"sv, "JKLMNO"sv);
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// Bytes for U+1F41E LADY BEETLE
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decode_equal_byte_buffer("=F0=9F=90=9E"sv, "\xF0\x9F\x90\x9E"sv);
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// Illegal characters. If these aren't escaped, they are simply ignored.
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// Illegal characters are:
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// - ASCII control bytes that aren't tab, carriage return or new line
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// - Any byte above 0x7E
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StringBuilder illegal_character_builder;
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for (u16 byte = 0; byte <= 0xFF; ++byte) {
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if (byte > 0x7E || (is_ascii_control(byte) && byte != '\t' && byte != '\r' && byte != '\n'))
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illegal_character_builder.append(byte);
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}
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auto illegal_character_decode = MUST(IMAP::decode_quoted_printable(illegal_character_builder.to_byte_string()));
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EXPECT(illegal_character_decode.is_empty());
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// If an escape sequence is invalid the characters are output unaltered. Illegal characters are ignored as usual.
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decode_equal("="sv, "="sv);
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decode_equal("=Z"sv, "=Z"sv);
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decode_equal("=\x7F"sv, "="sv);
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decode_equal("=\x7F\x7F"sv, "="sv);
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decode_equal("=A\x7F"sv, "=A"sv);
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decode_equal("=A"sv, "=A"sv);
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decode_equal("=AZ"sv, "=AZ"sv);
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decode_equal("=\r"sv, "=\r"sv);
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decode_equal("=\r\r"sv, "=\r\r"sv);
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decode_equal("=\n\r"sv, "=\n\r"sv);
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decode_equal("=\rA"sv, "=\rA"sv);
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}
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