1// Formatting library for C++ - color support
2//
3// Copyright (c) 2018 - present, Victor Zverovich and fmt contributors
4// All rights reserved.
5//
6// For the license information refer to format.h.
7
8#ifndef FMT_COLOR_H_
9#define FMT_COLOR_H_
10
11#include "format.h"
12
13FMT_BEGIN_NAMESPACE
14
15enum class color : uint32_t {
16 alice_blue = 0xF0F8FF, // rgb(240,248,255)
17 antique_white = 0xFAEBD7, // rgb(250,235,215)
18 aqua = 0x00FFFF, // rgb(0,255,255)
19 aquamarine = 0x7FFFD4, // rgb(127,255,212)
20 azure = 0xF0FFFF, // rgb(240,255,255)
21 beige = 0xF5F5DC, // rgb(245,245,220)
22 bisque = 0xFFE4C4, // rgb(255,228,196)
23 black = 0x000000, // rgb(0,0,0)
24 blanched_almond = 0xFFEBCD, // rgb(255,235,205)
25 blue = 0x0000FF, // rgb(0,0,255)
26 blue_violet = 0x8A2BE2, // rgb(138,43,226)
27 brown = 0xA52A2A, // rgb(165,42,42)
28 burly_wood = 0xDEB887, // rgb(222,184,135)
29 cadet_blue = 0x5F9EA0, // rgb(95,158,160)
30 chartreuse = 0x7FFF00, // rgb(127,255,0)
31 chocolate = 0xD2691E, // rgb(210,105,30)
32 coral = 0xFF7F50, // rgb(255,127,80)
33 cornflower_blue = 0x6495ED, // rgb(100,149,237)
34 cornsilk = 0xFFF8DC, // rgb(255,248,220)
35 crimson = 0xDC143C, // rgb(220,20,60)
36 cyan = 0x00FFFF, // rgb(0,255,255)
37 dark_blue = 0x00008B, // rgb(0,0,139)
38 dark_cyan = 0x008B8B, // rgb(0,139,139)
39 dark_golden_rod = 0xB8860B, // rgb(184,134,11)
40 dark_gray = 0xA9A9A9, // rgb(169,169,169)
41 dark_green = 0x006400, // rgb(0,100,0)
42 dark_khaki = 0xBDB76B, // rgb(189,183,107)
43 dark_magenta = 0x8B008B, // rgb(139,0,139)
44 dark_olive_green = 0x556B2F, // rgb(85,107,47)
45 dark_orange = 0xFF8C00, // rgb(255,140,0)
46 dark_orchid = 0x9932CC, // rgb(153,50,204)
47 dark_red = 0x8B0000, // rgb(139,0,0)
48 dark_salmon = 0xE9967A, // rgb(233,150,122)
49 dark_sea_green = 0x8FBC8F, // rgb(143,188,143)
50 dark_slate_blue = 0x483D8B, // rgb(72,61,139)
51 dark_slate_gray = 0x2F4F4F, // rgb(47,79,79)
52 dark_turquoise = 0x00CED1, // rgb(0,206,209)
53 dark_violet = 0x9400D3, // rgb(148,0,211)
54 deep_pink = 0xFF1493, // rgb(255,20,147)
55 deep_sky_blue = 0x00BFFF, // rgb(0,191,255)
56 dim_gray = 0x696969, // rgb(105,105,105)
57 dodger_blue = 0x1E90FF, // rgb(30,144,255)
58 fire_brick = 0xB22222, // rgb(178,34,34)
59 floral_white = 0xFFFAF0, // rgb(255,250,240)
60 forest_green = 0x228B22, // rgb(34,139,34)
61 fuchsia = 0xFF00FF, // rgb(255,0,255)
62 gainsboro = 0xDCDCDC, // rgb(220,220,220)
63 ghost_white = 0xF8F8FF, // rgb(248,248,255)
64 gold = 0xFFD700, // rgb(255,215,0)
65 golden_rod = 0xDAA520, // rgb(218,165,32)
66 gray = 0x808080, // rgb(128,128,128)
67 green = 0x008000, // rgb(0,128,0)
68 green_yellow = 0xADFF2F, // rgb(173,255,47)
69 honey_dew = 0xF0FFF0, // rgb(240,255,240)
70 hot_pink = 0xFF69B4, // rgb(255,105,180)
71 indian_red = 0xCD5C5C, // rgb(205,92,92)
72 indigo = 0x4B0082, // rgb(75,0,130)
73 ivory = 0xFFFFF0, // rgb(255,255,240)
74 khaki = 0xF0E68C, // rgb(240,230,140)
75 lavender = 0xE6E6FA, // rgb(230,230,250)
76 lavender_blush = 0xFFF0F5, // rgb(255,240,245)
77 lawn_green = 0x7CFC00, // rgb(124,252,0)
78 lemon_chiffon = 0xFFFACD, // rgb(255,250,205)
79 light_blue = 0xADD8E6, // rgb(173,216,230)
80 light_coral = 0xF08080, // rgb(240,128,128)
81 light_cyan = 0xE0FFFF, // rgb(224,255,255)
82 light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210)
83 light_gray = 0xD3D3D3, // rgb(211,211,211)
84 light_green = 0x90EE90, // rgb(144,238,144)
85 light_pink = 0xFFB6C1, // rgb(255,182,193)
86 light_salmon = 0xFFA07A, // rgb(255,160,122)
87 light_sea_green = 0x20B2AA, // rgb(32,178,170)
88 light_sky_blue = 0x87CEFA, // rgb(135,206,250)
89 light_slate_gray = 0x778899, // rgb(119,136,153)
90 light_steel_blue = 0xB0C4DE, // rgb(176,196,222)
91 light_yellow = 0xFFFFE0, // rgb(255,255,224)
92 lime = 0x00FF00, // rgb(0,255,0)
93 lime_green = 0x32CD32, // rgb(50,205,50)
94 linen = 0xFAF0E6, // rgb(250,240,230)
95 magenta = 0xFF00FF, // rgb(255,0,255)
96 maroon = 0x800000, // rgb(128,0,0)
97 medium_aquamarine = 0x66CDAA, // rgb(102,205,170)
98 medium_blue = 0x0000CD, // rgb(0,0,205)
99 medium_orchid = 0xBA55D3, // rgb(186,85,211)
100 medium_purple = 0x9370DB, // rgb(147,112,219)
101 medium_sea_green = 0x3CB371, // rgb(60,179,113)
102 medium_slate_blue = 0x7B68EE, // rgb(123,104,238)
103 medium_spring_green = 0x00FA9A, // rgb(0,250,154)
104 medium_turquoise = 0x48D1CC, // rgb(72,209,204)
105 medium_violet_red = 0xC71585, // rgb(199,21,133)
106 midnight_blue = 0x191970, // rgb(25,25,112)
107 mint_cream = 0xF5FFFA, // rgb(245,255,250)
108 misty_rose = 0xFFE4E1, // rgb(255,228,225)
109 moccasin = 0xFFE4B5, // rgb(255,228,181)
110 navajo_white = 0xFFDEAD, // rgb(255,222,173)
111 navy = 0x000080, // rgb(0,0,128)
112 old_lace = 0xFDF5E6, // rgb(253,245,230)
113 olive = 0x808000, // rgb(128,128,0)
114 olive_drab = 0x6B8E23, // rgb(107,142,35)
115 orange = 0xFFA500, // rgb(255,165,0)
116 orange_red = 0xFF4500, // rgb(255,69,0)
117 orchid = 0xDA70D6, // rgb(218,112,214)
118 pale_golden_rod = 0xEEE8AA, // rgb(238,232,170)
119 pale_green = 0x98FB98, // rgb(152,251,152)
120 pale_turquoise = 0xAFEEEE, // rgb(175,238,238)
121 pale_violet_red = 0xDB7093, // rgb(219,112,147)
122 papaya_whip = 0xFFEFD5, // rgb(255,239,213)
123 peach_puff = 0xFFDAB9, // rgb(255,218,185)
124 peru = 0xCD853F, // rgb(205,133,63)
125 pink = 0xFFC0CB, // rgb(255,192,203)
126 plum = 0xDDA0DD, // rgb(221,160,221)
127 powder_blue = 0xB0E0E6, // rgb(176,224,230)
128 purple = 0x800080, // rgb(128,0,128)
129 rebecca_purple = 0x663399, // rgb(102,51,153)
130 red = 0xFF0000, // rgb(255,0,0)
131 rosy_brown = 0xBC8F8F, // rgb(188,143,143)
132 royal_blue = 0x4169E1, // rgb(65,105,225)
133 saddle_brown = 0x8B4513, // rgb(139,69,19)
134 salmon = 0xFA8072, // rgb(250,128,114)
135 sandy_brown = 0xF4A460, // rgb(244,164,96)
136 sea_green = 0x2E8B57, // rgb(46,139,87)
137 sea_shell = 0xFFF5EE, // rgb(255,245,238)
138 sienna = 0xA0522D, // rgb(160,82,45)
139 silver = 0xC0C0C0, // rgb(192,192,192)
140 sky_blue = 0x87CEEB, // rgb(135,206,235)
141 slate_blue = 0x6A5ACD, // rgb(106,90,205)
142 slate_gray = 0x708090, // rgb(112,128,144)
143 snow = 0xFFFAFA, // rgb(255,250,250)
144 spring_green = 0x00FF7F, // rgb(0,255,127)
145 steel_blue = 0x4682B4, // rgb(70,130,180)
146 tan = 0xD2B48C, // rgb(210,180,140)
147 teal = 0x008080, // rgb(0,128,128)
148 thistle = 0xD8BFD8, // rgb(216,191,216)
149 tomato = 0xFF6347, // rgb(255,99,71)
150 turquoise = 0x40E0D0, // rgb(64,224,208)
151 violet = 0xEE82EE, // rgb(238,130,238)
152 wheat = 0xF5DEB3, // rgb(245,222,179)
153 white = 0xFFFFFF, // rgb(255,255,255)
154 white_smoke = 0xF5F5F5, // rgb(245,245,245)
155 yellow = 0xFFFF00, // rgb(255,255,0)
156 yellow_green = 0x9ACD32 // rgb(154,205,50)
157}; // enum class color
158
159enum class terminal_color : uint8_t {
160 black = 30,
161 red,
162 green,
163 yellow,
164 blue,
165 magenta,
166 cyan,
167 white,
168 bright_black = 90,
169 bright_red,
170 bright_green,
171 bright_yellow,
172 bright_blue,
173 bright_magenta,
174 bright_cyan,
175 bright_white
176};
177
178enum class emphasis : uint8_t {
179 bold = 1,
180 italic = 1 << 1,
181 underline = 1 << 2,
182 strikethrough = 1 << 3
183};
184
185// rgb is a struct for red, green and blue colors.
186// Using the name "rgb" makes some editors show the color in a tooltip.
187struct rgb {
188 FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {}
189 FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {}
190 FMT_CONSTEXPR rgb(uint32_t hex)
191 : r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {}
192 FMT_CONSTEXPR rgb(color hex)
193 : r((uint32_t(hex) >> 16) & 0xFF),
194 g((uint32_t(hex) >> 8) & 0xFF),
195 b(uint32_t(hex) & 0xFF) {}
196 uint8_t r;
197 uint8_t g;
198 uint8_t b;
199};
200
201namespace internal {
202
203// color is a struct of either a rgb color or a terminal color.
204struct color_type {
205 FMT_CONSTEXPR color_type() FMT_NOEXCEPT : is_rgb(), value{} {}
206 FMT_CONSTEXPR color_type(color rgb_color) FMT_NOEXCEPT : is_rgb(true),
207 value{} {
208 value.rgb_color = static_cast<uint32_t>(rgb_color);
209 }
210 FMT_CONSTEXPR color_type(rgb rgb_color) FMT_NOEXCEPT : is_rgb(true), value{} {
211 value.rgb_color = (static_cast<uint32_t>(rgb_color.r) << 16) |
212 (static_cast<uint32_t>(rgb_color.g) << 8) | rgb_color.b;
213 }
214 FMT_CONSTEXPR color_type(terminal_color term_color) FMT_NOEXCEPT : is_rgb(),
215 value{} {
216 value.term_color = static_cast<uint8_t>(term_color);
217 }
218 bool is_rgb;
219 union color_union {
220 uint8_t term_color;
221 uint32_t rgb_color;
222 } value;
223};
224} // namespace internal
225
226// Experimental text formatting support.
227class text_style {
228 public:
229 FMT_CONSTEXPR text_style(emphasis em = emphasis()) FMT_NOEXCEPT
230 : set_foreground_color(),
231 set_background_color(),
232 ems(em) {}
233
234 FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) {
235 if (!set_foreground_color) {
236 set_foreground_color = rhs.set_foreground_color;
237 foreground_color = rhs.foreground_color;
238 } else if (rhs.set_foreground_color) {
239 if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
240 FMT_THROW(format_error("can't OR a terminal color"));
241 foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color;
242 }
243
244 if (!set_background_color) {
245 set_background_color = rhs.set_background_color;
246 background_color = rhs.background_color;
247 } else if (rhs.set_background_color) {
248 if (!background_color.is_rgb || !rhs.background_color.is_rgb)
249 FMT_THROW(format_error("can't OR a terminal color"));
250 background_color.value.rgb_color |= rhs.background_color.value.rgb_color;
251 }
252
253 ems = static_cast<emphasis>(static_cast<uint8_t>(ems) |
254 static_cast<uint8_t>(rhs.ems));
255 return *this;
256 }
257
258 friend FMT_CONSTEXPR text_style operator|(text_style lhs,
259 const text_style& rhs) {
260 return lhs |= rhs;
261 }
262
263 FMT_CONSTEXPR text_style& operator&=(const text_style& rhs) {
264 if (!set_foreground_color) {
265 set_foreground_color = rhs.set_foreground_color;
266 foreground_color = rhs.foreground_color;
267 } else if (rhs.set_foreground_color) {
268 if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
269 FMT_THROW(format_error("can't AND a terminal color"));
270 foreground_color.value.rgb_color &= rhs.foreground_color.value.rgb_color;
271 }
272
273 if (!set_background_color) {
274 set_background_color = rhs.set_background_color;
275 background_color = rhs.background_color;
276 } else if (rhs.set_background_color) {
277 if (!background_color.is_rgb || !rhs.background_color.is_rgb)
278 FMT_THROW(format_error("can't AND a terminal color"));
279 background_color.value.rgb_color &= rhs.background_color.value.rgb_color;
280 }
281
282 ems = static_cast<emphasis>(static_cast<uint8_t>(ems) &
283 static_cast<uint8_t>(rhs.ems));
284 return *this;
285 }
286
287 friend FMT_CONSTEXPR text_style operator&(text_style lhs,
288 const text_style& rhs) {
289 return lhs &= rhs;
290 }
291
292 FMT_CONSTEXPR bool has_foreground() const FMT_NOEXCEPT {
293 return set_foreground_color;
294 }
295 FMT_CONSTEXPR bool has_background() const FMT_NOEXCEPT {
296 return set_background_color;
297 }
298 FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT {
299 return static_cast<uint8_t>(ems) != 0;
300 }
301 FMT_CONSTEXPR internal::color_type get_foreground() const FMT_NOEXCEPT {
302 FMT_ASSERT(has_foreground(), "no foreground specified for this style");
303 return foreground_color;
304 }
305 FMT_CONSTEXPR internal::color_type get_background() const FMT_NOEXCEPT {
306 FMT_ASSERT(has_background(), "no background specified for this style");
307 return background_color;
308 }
309 FMT_CONSTEXPR emphasis get_emphasis() const FMT_NOEXCEPT {
310 FMT_ASSERT(has_emphasis(), "no emphasis specified for this style");
311 return ems;
312 }
313
314 private:
315 FMT_CONSTEXPR text_style(bool is_foreground,
316 internal::color_type text_color) FMT_NOEXCEPT
317 : set_foreground_color(),
318 set_background_color(),
319 ems() {
320 if (is_foreground) {
321 foreground_color = text_color;
322 set_foreground_color = true;
323 } else {
324 background_color = text_color;
325 set_background_color = true;
326 }
327 }
328
329 friend FMT_CONSTEXPR_DECL text_style fg(internal::color_type foreground)
330 FMT_NOEXCEPT;
331 friend FMT_CONSTEXPR_DECL text_style bg(internal::color_type background)
332 FMT_NOEXCEPT;
333
334 internal::color_type foreground_color;
335 internal::color_type background_color;
336 bool set_foreground_color;
337 bool set_background_color;
338 emphasis ems;
339};
340
341FMT_CONSTEXPR text_style fg(internal::color_type foreground) FMT_NOEXCEPT {
342 return text_style(/*is_foreground=*/true, foreground);
343}
344
345FMT_CONSTEXPR text_style bg(internal::color_type background) FMT_NOEXCEPT {
346 return text_style(/*is_foreground=*/false, background);
347}
348
349FMT_CONSTEXPR text_style operator|(emphasis lhs, emphasis rhs) FMT_NOEXCEPT {
350 return text_style(lhs) | rhs;
351}
352
353namespace internal {
354
355template <typename Char> struct ansi_color_escape {
356 FMT_CONSTEXPR ansi_color_escape(internal::color_type text_color,
357 const char* esc) FMT_NOEXCEPT {
358 // If we have a terminal color, we need to output another escape code
359 // sequence.
360 if (!text_color.is_rgb) {
361 bool is_background = esc == internal::data::background_color;
362 uint32_t value = text_color.value.term_color;
363 // Background ASCII codes are the same as the foreground ones but with
364 // 10 more.
365 if (is_background) value += 10u;
366
367 std::size_t index = 0;
368 buffer[index++] = static_cast<Char>('\x1b');
369 buffer[index++] = static_cast<Char>('[');
370
371 if (value >= 100u) {
372 buffer[index++] = static_cast<Char>('1');
373 value %= 100u;
374 }
375 buffer[index++] = static_cast<Char>('0' + value / 10u);
376 buffer[index++] = static_cast<Char>('0' + value % 10u);
377
378 buffer[index++] = static_cast<Char>('m');
379 buffer[index++] = static_cast<Char>('\0');
380 return;
381 }
382
383 for (int i = 0; i < 7; i++) {
384 buffer[i] = static_cast<Char>(esc[i]);
385 }
386 rgb color(text_color.value.rgb_color);
387 to_esc(color.r, buffer + 7, ';');
388 to_esc(color.g, buffer + 11, ';');
389 to_esc(color.b, buffer + 15, 'm');
390 buffer[19] = static_cast<Char>(0);
391 }
392 FMT_CONSTEXPR ansi_color_escape(emphasis em) FMT_NOEXCEPT {
393 uint8_t em_codes[4] = {};
394 uint8_t em_bits = static_cast<uint8_t>(em);
395 if (em_bits & static_cast<uint8_t>(emphasis::bold)) em_codes[0] = 1;
396 if (em_bits & static_cast<uint8_t>(emphasis::italic)) em_codes[1] = 3;
397 if (em_bits & static_cast<uint8_t>(emphasis::underline)) em_codes[2] = 4;
398 if (em_bits & static_cast<uint8_t>(emphasis::strikethrough))
399 em_codes[3] = 9;
400
401 std::size_t index = 0;
402 for (int i = 0; i < 4; ++i) {
403 if (!em_codes[i]) continue;
404 buffer[index++] = static_cast<Char>('\x1b');
405 buffer[index++] = static_cast<Char>('[');
406 buffer[index++] = static_cast<Char>('0' + em_codes[i]);
407 buffer[index++] = static_cast<Char>('m');
408 }
409 buffer[index++] = static_cast<Char>(0);
410 }
411 FMT_CONSTEXPR operator const Char*() const FMT_NOEXCEPT { return buffer; }
412
413 FMT_CONSTEXPR const Char* begin() const FMT_NOEXCEPT { return buffer; }
414 FMT_CONSTEXPR const Char* end() const FMT_NOEXCEPT {
415 return buffer + std::strlen(buffer);
416 }
417
418 private:
419 Char buffer[7u + 3u * 4u + 1u];
420
421 static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out,
422 char delimiter) FMT_NOEXCEPT {
423 out[0] = static_cast<Char>('0' + c / 100);
424 out[1] = static_cast<Char>('0' + c / 10 % 10);
425 out[2] = static_cast<Char>('0' + c % 10);
426 out[3] = static_cast<Char>(delimiter);
427 }
428};
429
430template <typename Char>
431FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color(
432 internal::color_type foreground) FMT_NOEXCEPT {
433 return ansi_color_escape<Char>(foreground, internal::data::foreground_color);
434}
435
436template <typename Char>
437FMT_CONSTEXPR ansi_color_escape<Char> make_background_color(
438 internal::color_type background) FMT_NOEXCEPT {
439 return ansi_color_escape<Char>(background, internal::data::background_color);
440}
441
442template <typename Char>
443FMT_CONSTEXPR ansi_color_escape<Char> make_emphasis(emphasis em) FMT_NOEXCEPT {
444 return ansi_color_escape<Char>(em);
445}
446
447template <typename Char>
448inline void fputs(const Char* chars, FILE* stream) FMT_NOEXCEPT {
449 std::fputs(chars, stream);
450}
451
452template <>
453inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) FMT_NOEXCEPT {
454 std::fputws(chars, stream);
455}
456
457template <typename Char> inline void reset_color(FILE* stream) FMT_NOEXCEPT {
458 fputs(internal::data::reset_color, stream);
459}
460
461template <> inline void reset_color<wchar_t>(FILE* stream) FMT_NOEXCEPT {
462 fputs(internal::data::wreset_color, stream);
463}
464
465template <typename Char>
466inline void reset_color(basic_memory_buffer<Char>& buffer) FMT_NOEXCEPT {
467 const char* begin = data::reset_color;
468 const char* end = begin + sizeof(data::reset_color) - 1;
469 buffer.append(begin, end);
470}
471
472template <typename Char>
473void vformat_to(basic_memory_buffer<Char>& buf, const text_style& ts,
474 basic_string_view<Char> format_str,
475 basic_format_args<buffer_context<Char>> args) {
476 bool has_style = false;
477 if (ts.has_emphasis()) {
478 has_style = true;
479 auto emphasis = internal::make_emphasis<Char>(ts.get_emphasis());
480 buf.append(emphasis.begin(), emphasis.end());
481 }
482 if (ts.has_foreground()) {
483 has_style = true;
484 auto foreground =
485 internal::make_foreground_color<Char>(ts.get_foreground());
486 buf.append(foreground.begin(), foreground.end());
487 }
488 if (ts.has_background()) {
489 has_style = true;
490 auto background =
491 internal::make_background_color<Char>(ts.get_background());
492 buf.append(background.begin(), background.end());
493 }
494 vformat_to(buf, format_str, args);
495 if (has_style) {
496 internal::reset_color<Char>(buf);
497 }
498}
499} // namespace internal
500
501template <typename S, typename Char = char_t<S>>
502void vprint(std::FILE* f, const text_style& ts, const S& format,
503 basic_format_args<buffer_context<Char>> args) {
504 basic_memory_buffer<Char> buf;
505 internal::vformat_to(buf, ts, to_string_view(format), args);
506 buf.push_back(Char(0));
507 internal::fputs(buf.data(), f);
508}
509
510/**
511 Formats a string and prints it to the specified file stream using ANSI
512 escape sequences to specify text formatting.
513 Example:
514 fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
515 "Elapsed time: {0:.2f} seconds", 1.23);
516 */
517template <typename S, typename... Args,
518 FMT_ENABLE_IF(internal::is_string<S>::value)>
519void print(std::FILE* f, const text_style& ts, const S& format_str,
520 const Args&... args) {
521 internal::check_format_string<Args...>(format_str);
522 using context = buffer_context<char_t<S>>;
523 format_arg_store<context, Args...> as{args...};
524 vprint(f, ts, format_str, basic_format_args<context>(as));
525}
526
527/**
528 Formats a string and prints it to stdout using ANSI escape sequences to
529 specify text formatting.
530 Example:
531 fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
532 "Elapsed time: {0:.2f} seconds", 1.23);
533 */
534template <typename S, typename... Args,
535 FMT_ENABLE_IF(internal::is_string<S>::value)>
536void print(const text_style& ts, const S& format_str, const Args&... args) {
537 return print(stdout, ts, format_str, args...);
538}
539
540template <typename S, typename Char = char_t<S>>
541inline std::basic_string<Char> vformat(
542 const text_style& ts, const S& format_str,
543 basic_format_args<buffer_context<Char>> args) {
544 basic_memory_buffer<Char> buf;
545 internal::vformat_to(buf, ts, to_string_view(format_str), args);
546 return fmt::to_string(buf);
547}
548
549/**
550 \rst
551 Formats arguments and returns the result as a string using ANSI
552 escape sequences to specify text formatting.
553
554 **Example**::
555
556 #include <fmt/color.h>
557 std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
558 "The answer is {}", 42);
559 \endrst
560*/
561template <typename S, typename... Args, typename Char = char_t<S>>
562inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
563 const Args&... args) {
564 return vformat(ts, to_string_view(format_str),
565 {internal::make_args_checked<Args...>(format_str, args...)});
566}
567
568FMT_END_NAMESPACE
569
570#endif // FMT_COLOR_H_
571