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windows cli colors revision and test case

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This commit is contained in:
Ryuuke 2015-02-08 16:08:29 +00:00
parent bce73e2bd8
commit 5a9dc8f991
3 changed files with 47 additions and 29 deletions
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40
format.cc
View File

@ -35,6 +35,15 @@
#include <cmath>
#include <cstdarg>
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# ifdef __MINGW32__
# include <cstring>
# endif
# include <windows.h>
# undef ERROR
#endif
using fmt::internal::Arg;
// Check if exceptions are disabled.
@ -113,7 +122,19 @@ struct IntChecker<true> {
};
#ifdef _WIN32
const char RESET_COLOR = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE;
uint8_t win32_colors[] =
{
0,
FOREGROUND_RED | FOREGROUND_INTENSITY,
FOREGROUND_GREEN | FOREGROUND_INTENSITY,
FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY,
FOREGROUND_BLUE | FOREGROUND_INTENSITY,
FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_INTENSITY,
FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_BLUE,
FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY
};
WORD RESET_COLOR = 0;
bool reset_color_flag = false;
#else
const char RESET_COLOR[] = "\x1b[0m";
#endif
@ -1096,7 +1117,19 @@ FMT_FUNC void fmt::print(std::ostream &os, StringRef format_str, ArgList args) {
FMT_FUNC void fmt::print_colored(Color c, StringRef format, ArgList args) {
#ifdef _WIN32
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), c);
HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
if (handle == INVALID_HANDLE_VALUE)
FMT_THROW(GetLastError(), "cannot get output handle");
if (!reset_color_flag) {
CONSOLE_SCREEN_BUFFER_INFO infoCon;
if (!GetConsoleScreenBufferInfo(handle, &infoCon))
FMT_THROW(GetLastError(), "cannot get console informations");
RESET_COLOR = infoCon.wAttributes;
reset_color_flag = true;
}
WORD color = static_cast<int>(c) >= ARRAYSIZE(win32_colors) ? RESET_COLOR : win32_colors[c];
if (!SetConsoleTextAttribute(handle, color))
FMT_THROW(GetLastError(), "cannot set console color");
#else
char escape[] = "\x1b[30m";
escape[3] = '0' + static_cast<char>(c);
@ -1104,7 +1137,8 @@ FMT_FUNC void fmt::print_colored(Color c, StringRef format, ArgList args) {
#endif
print(format, args);
#ifdef _WIN32
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), RESET_COLOR);
if(!SetConsoleTextAttribute(handle, RESET_COLOR))
FMT_THROW(GetLastError(), "cannot set console color");
#else
std::fputs(RESET_COLOR, stdout);
#endif

23
format.h
View File

@ -40,15 +40,6 @@
#include <string>
#include <sstream>
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# ifdef __MINGW32__
# include <cstring>
# endif
# include <windows.h>
# undef ERROR
#endif
#if _SECURE_SCL
# include <iterator>
#endif
@ -2163,21 +2154,7 @@ void report_windows_error(int error_code, StringRef message) FMT_NOEXCEPT(true);
#endif
#ifdef _WIN32
enum Color
{
BLACK = 0,
RED = FOREGROUND_RED | FOREGROUND_INTENSITY,
GREEN = FOREGROUND_GREEN | FOREGROUND_INTENSITY,
YELLOW = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY,
BLUE = FOREGROUND_BLUE | FOREGROUND_INTENSITY,
MAGENTA = FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_INTENSITY,
CYAN = FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_BLUE,
WHITE = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY
};
#else
enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
#endif
/**
Formats a string and prints it to stdout using ANSI escape sequences

7
test/format-test.cc
View File

@ -1371,8 +1371,15 @@ TEST(FormatTest, Print) {
#if FMT_USE_FILE_DESCRIPTORS
TEST(FormatTest, PrintColored) {
#if _WIN32
EXPECT_WRITE(stdout, fmt::print_colored(fmt::RED, "Hello, {}!\n", "world"),
"Hello, world!\n");
EXPECT_WRITE(stdout, fmt::print_colored(static_cast<fmt::Color>(29673),
"Hello, {}!\n", "world"), "Hello, world!\n");
#else
EXPECT_WRITE(stdout, fmt::print_colored(fmt::RED, "Hello, {}!\n", "world"),
"\x1b[31mHello, world!\n\x1b[0m");
#endif
}
#endif