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https://github.com/reactos/CMake.git
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671fe28313
Change the default color for strings from BLUE (which is nearly illegible on any terminals using the standard color palette which has been around since at least CGA, almost 40 years ago) to CYAN. Add ability to customize the colors via an environment variable (inspired by LS_COLORS and using similar syntax). Fixes: #20596
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmCursesColor.h"
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#include <cctype>
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#include <cstdlib>
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#include <cstring>
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#include <unordered_map>
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#include <utility>
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#include "cmCursesStandardIncludes.h"
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bool cmCursesColor::HasColors()
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{
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#ifdef HAVE_CURSES_USE_DEFAULT_COLORS
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return has_colors();
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#else
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return false;
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#endif
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}
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void cmCursesColor::InitColors()
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{
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#ifdef HAVE_CURSES_USE_DEFAULT_COLORS
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if (HasColors()) {
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start_color();
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use_default_colors();
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init_pair(BoolOff, GetColor('N', COLOR_RED), -1);
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init_pair(BoolOn, GetColor('Y', COLOR_GREEN), -1);
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init_pair(String, GetColor('S', COLOR_CYAN), -1);
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init_pair(Path, GetColor('P', COLOR_YELLOW), -1);
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init_pair(Choice, GetColor('C', COLOR_MAGENTA), -1);
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}
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#endif
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}
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short cmCursesColor::GetColor(char id, short fallback)
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{
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static bool initialized = false;
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static std::unordered_map<char, short> env;
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if (!initialized) {
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if (auto* v = getenv("CCMAKE_COLORS")) {
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while (v[0] && v[1] && v[1] == '=') {
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auto const n = std::toupper(*v);
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char buffer[12];
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memset(buffer, 0, sizeof(buffer));
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if (auto* const e = strchr(v, ':')) {
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if (static_cast<size_t>(e - v) > sizeof(buffer)) {
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break;
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}
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strncpy(buffer, v + 2, static_cast<size_t>(e - v - 2));
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v = e + 1;
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} else {
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auto const l = strlen(v);
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if (l > sizeof(buffer)) {
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break;
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}
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strncpy(buffer, v + 2, l - 2);
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v += l;
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}
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auto const c = atoi(buffer);
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if (c && c < COLORS) {
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env.emplace(n, static_cast<short>(c));
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}
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}
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}
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initialized = true;
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}
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auto const iter = env.find(id);
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return (iter == env.end() ? fallback : iter->second);
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}
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