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Make fmt::println support color

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This commit is contained in:
NukoOoOoOoO 2023-04-09 09:30:34 +08:00
parent e406ddbfaf
commit a19700aba6
2 changed files with 41 additions and 2 deletions
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41
include/fmt/color.h
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@ -460,10 +460,11 @@ void vformat_to(buffer<Char>& buf, const text_style& ts,
FMT_END_DETAIL_NAMESPACE
inline void vprint(std::FILE* f, const text_style& ts, string_view fmt,
format_args args) {
bool new_line, format_args args) {
// Legacy wide streams are not supported.
auto buf = memory_buffer();
detail::vformat_to(buf, ts, fmt, args);
if (new_line) buf.push_back('\n');
if (detail::is_utf8()) {
detail::print(f, string_view(buf.begin(), buf.size()));
return;
@ -489,7 +490,26 @@ template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(std::FILE* f, const text_style& ts, const S& format_str,
const Args&... args) {
vprint(f, ts, format_str,
vprint(f, ts, format_str, false,
fmt::make_format_args<buffer_context<char_t<S>>>(args...));
}
/**
\rst
Formats a string and prints it to the specified file stream using ANSI
escape sequences to specify text formatting followed by a newline.
**Example**::
fmt::println(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
\endrst
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void println(std::FILE* f, const text_style& ts, const S& format_str,
const Args&... args) {
vprint(f, ts, format_str, true,
fmt::make_format_args<buffer_context<char_t<S>>>(args...));
}
@ -510,6 +530,23 @@ void print(const text_style& ts, const S& format_str, const Args&... args) {
return print(stdout, ts, format_str, args...);
}
/**
\rst
Formats a string and prints it to stdout using ANSI escape sequences to
specify text formatting followed by a newline.
**Example**::
fmt::println(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
\endrst
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void println(const text_style& ts, const S& format_str, const Args&... args) {
return println(stdout, ts, format_str, args...);
}
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vformat(
const text_style& ts, const S& format_str,

2
test/color-test.cc
View File

@ -69,4 +69,6 @@ TEST(color_test, format_to) {
TEST(color_test, print) {
EXPECT_WRITE(stdout, fmt::print(fg(fmt::rgb(255, 20, 30)), "rgb(255,20,30)"),
"\x1b[38;2;255;020;030mrgb(255,20,30)\x1b[0m");
EXPECT_WRITE(stdout, fmt::println(fg(fmt::rgb(255, 20, 30)), "rgb(255,20,30)"),
"\x1b[38;2;255;020;030mrgb(255,20,30)\x1b[0m\n");
}