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Combined emphases into a single escape sequence (#4528)

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Anas
2025-09-05 17:50:56 +01:00
committed by GitHub
parent 053d262944
commit 0a94e06750
2 changed files with 7 additions and 4 deletions
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9
include/fmt/color.h
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@@ -409,13 +409,16 @@ template <typename Char> struct ansi_color_escape {
if (has_emphasis(em, emphasis::conceal)) em_codes[6] = 8;
if (has_emphasis(em, emphasis::strikethrough)) em_codes[7] = 9;
buffer[size++] = static_cast<Char>('\x1b');
buffer[size++] = static_cast<Char>('[');
for (size_t i = 0; i < num_emphases; ++i) {
if (!em_codes[i]) continue;
buffer[size++] = static_cast<Char>('\x1b');
buffer[size++] = static_cast<Char>('[');
buffer[size++] = static_cast<Char>('0' + em_codes[i]);
buffer[size++] = static_cast<Char>('m');
buffer[size++] = static_cast<Char>(';');
}
buffer[size - 1] = static_cast<Char>('m');
}
FMT_CONSTEXPR operator const Char*() const noexcept { return buffer; }

2
test/color-test.cc
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@@ -121,7 +121,7 @@ TEST(color_test, format) {
fmt::emphasis::underline | fmt::emphasis::blink |
fmt::emphasis::reverse | fmt::emphasis::conceal |
fmt::emphasis::strikethrough)),
"\x1b[1m\x1b[2m\x1b[3m\x1b[4m\x1b[5m\x1b[7m\x1b[8m\x1b[9mall\x1b[0m");
"\x1b[1;2;3;4;5;7;8;9mall\x1b[0m");
}
TEST(color_test, format_to) {