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Timothy Stack
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commit
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// Formatting library for C++ - chrono support
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//
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// Copyright (c) 2012 - present, Victor Zverovich
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// All rights reserved.
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//
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// For the license information refer to format.h.
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#ifndef FMT_CHRONO_H_
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#define FMT_CHRONO_H_
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#include "format.h"
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#include "locale.h"
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#include <chrono>
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#include <ctime>
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#include <locale>
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#include <sstream>
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FMT_BEGIN_NAMESPACE
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namespace internal{
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enum class numeric_system {
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standard,
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// Alternative numeric system, e.g. 十二 instead of 12 in ja_JP locale.
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alternative
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};
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// Parses a put_time-like format string and invokes handler actions.
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template <typename Char, typename Handler>
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FMT_CONSTEXPR const Char *parse_chrono_format(
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const Char *begin, const Char *end, Handler &&handler) {
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auto ptr = begin;
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while (ptr != end) {
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auto c = *ptr;
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if (c == '}') break;
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if (c != '%') {
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++ptr;
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continue;
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}
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if (begin != ptr)
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handler.on_text(begin, ptr);
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++ptr; // consume '%'
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if (ptr == end)
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throw format_error("invalid format");
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c = *ptr++;
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switch (c) {
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case '%':
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handler.on_text(ptr - 1, ptr);
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break;
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case 'n': {
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const char newline[] = "\n";
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handler.on_text(newline, newline + 1);
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break;
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}
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case 't': {
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const char tab[] = "\t";
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handler.on_text(tab, tab + 1);
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break;
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}
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// Day of the week:
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case 'a':
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handler.on_abbr_weekday();
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break;
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case 'A':
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handler.on_full_weekday();
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break;
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case 'w':
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handler.on_dec0_weekday(numeric_system::standard);
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break;
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case 'u':
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handler.on_dec1_weekday(numeric_system::standard);
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break;
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// Month:
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case 'b':
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handler.on_abbr_month();
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break;
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case 'B':
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handler.on_full_month();
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break;
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// Hour, minute, second:
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case 'H':
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handler.on_24_hour(numeric_system::standard);
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break;
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case 'I':
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handler.on_12_hour(numeric_system::standard);
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break;
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case 'M':
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handler.on_minute(numeric_system::standard);
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break;
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case 'S':
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handler.on_second(numeric_system::standard);
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break;
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// Other:
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case 'c':
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handler.on_datetime(numeric_system::standard);
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break;
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case 'x':
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handler.on_loc_date(numeric_system::standard);
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break;
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case 'X':
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handler.on_loc_time(numeric_system::standard);
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break;
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case 'D':
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handler.on_us_date();
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break;
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case 'F':
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handler.on_iso_date();
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break;
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case 'r':
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handler.on_12_hour_time();
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break;
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case 'R':
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handler.on_24_hour_time();
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break;
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case 'T':
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handler.on_iso_time();
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break;
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case 'p':
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handler.on_am_pm();
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break;
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case 'z':
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handler.on_utc_offset();
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break;
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case 'Z':
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handler.on_tz_name();
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break;
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// Alternative representation:
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case 'E': {
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if (ptr == end)
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throw format_error("invalid format");
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c = *ptr++;
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switch (c) {
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case 'c':
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handler.on_datetime(numeric_system::alternative);
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break;
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case 'x':
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handler.on_loc_date(numeric_system::alternative);
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break;
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case 'X':
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handler.on_loc_time(numeric_system::alternative);
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break;
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default:
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throw format_error("invalid format");
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}
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break;
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}
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case 'O':
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if (ptr == end)
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throw format_error("invalid format");
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c = *ptr++;
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switch (c) {
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case 'w':
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handler.on_dec0_weekday(numeric_system::alternative);
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break;
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case 'u':
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handler.on_dec1_weekday(numeric_system::alternative);
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break;
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case 'H':
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handler.on_24_hour(numeric_system::alternative);
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break;
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case 'I':
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handler.on_12_hour(numeric_system::alternative);
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break;
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case 'M':
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handler.on_minute(numeric_system::alternative);
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break;
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case 'S':
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handler.on_second(numeric_system::alternative);
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break;
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default:
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throw format_error("invalid format");
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}
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break;
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default:
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throw format_error("invalid format");
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}
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begin = ptr;
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}
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if (begin != ptr)
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handler.on_text(begin, ptr);
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return ptr;
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}
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struct chrono_format_checker {
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void report_no_date() { throw format_error("no date"); }
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template <typename Char>
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void on_text(const Char *, const Char *) {}
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void on_abbr_weekday() { report_no_date(); }
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void on_full_weekday() { report_no_date(); }
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void on_dec0_weekday(numeric_system) { report_no_date(); }
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void on_dec1_weekday(numeric_system) { report_no_date(); }
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void on_abbr_month() { report_no_date(); }
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void on_full_month() { report_no_date(); }
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void on_24_hour(numeric_system) {}
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void on_12_hour(numeric_system) {}
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void on_minute(numeric_system) {}
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void on_second(numeric_system) {}
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void on_datetime(numeric_system) { report_no_date(); }
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void on_loc_date(numeric_system) { report_no_date(); }
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void on_loc_time(numeric_system) { report_no_date(); }
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void on_us_date() { report_no_date(); }
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void on_iso_date() { report_no_date(); }
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void on_12_hour_time() {}
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void on_24_hour_time() {}
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void on_iso_time() {}
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void on_am_pm() {}
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void on_utc_offset() { report_no_date(); }
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void on_tz_name() { report_no_date(); }
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};
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template <typename Int>
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inline int to_int(Int value) {
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FMT_ASSERT(value >= (std::numeric_limits<int>::min)() &&
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value <= (std::numeric_limits<int>::max)(), "invalid value");
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return static_cast<int>(value);
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}
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template <typename FormatContext, typename OutputIt>
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struct chrono_formatter {
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FormatContext &context;
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OutputIt out;
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std::chrono::seconds s;
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std::chrono::milliseconds ms;
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typedef typename FormatContext::char_type char_type;
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explicit chrono_formatter(FormatContext &ctx, OutputIt o)
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: context(ctx), out(o) {}
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int hour() const { return to_int((s.count() / 3600) % 24); }
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int hour12() const {
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auto hour = to_int((s.count() / 3600) % 12);
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return hour > 0 ? hour : 12;
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}
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int minute() const { return to_int((s.count() / 60) % 60); }
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int second() const { return to_int(s.count() % 60); }
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std::tm time() const {
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auto time = std::tm();
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time.tm_hour = hour();
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time.tm_min = minute();
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time.tm_sec = second();
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return time;
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}
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void write(int value, int width) {
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typedef typename int_traits<int>::main_type main_type;
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main_type n = to_unsigned(value);
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int num_digits = internal::count_digits(n);
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if (width > num_digits)
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out = std::fill_n(out, width - num_digits, '0');
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out = format_decimal<char_type>(out, n, num_digits);
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}
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void format_localized(const tm &time, const char *format) {
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auto locale = context.locale().template get<std::locale>();
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auto &facet = std::use_facet<std::time_put<char_type>>(locale);
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std::basic_ostringstream<char_type> os;
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os.imbue(locale);
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facet.put(os, os, ' ', &time, format, format + std::strlen(format));
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auto str = os.str();
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std::copy(str.begin(), str.end(), out);
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}
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void on_text(const char_type *begin, const char_type *end) {
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std::copy(begin, end, out);
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}
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// These are not implemented because durations don't have date information.
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void on_abbr_weekday() {}
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void on_full_weekday() {}
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void on_dec0_weekday(numeric_system) {}
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void on_dec1_weekday(numeric_system) {}
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void on_abbr_month() {}
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void on_full_month() {}
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void on_datetime(numeric_system) {}
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void on_loc_date(numeric_system) {}
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void on_loc_time(numeric_system) {}
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void on_us_date() {}
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void on_iso_date() {}
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void on_utc_offset() {}
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void on_tz_name() {}
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void on_24_hour(numeric_system ns) {
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if (ns == numeric_system::standard)
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return write(hour(), 2);
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auto time = tm();
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time.tm_hour = hour();
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format_localized(time, "%OH");
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}
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void on_12_hour(numeric_system ns) {
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if (ns == numeric_system::standard)
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return write(hour12(), 2);
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auto time = tm();
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time.tm_hour = hour();
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format_localized(time, "%OI");
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}
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void on_minute(numeric_system ns) {
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if (ns == numeric_system::standard)
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return write(minute(), 2);
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auto time = tm();
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time.tm_min = minute();
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format_localized(time, "%OM");
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}
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void on_second(numeric_system ns) {
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if (ns == numeric_system::standard) {
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write(second(), 2);
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if (ms != std::chrono::milliseconds(0)) {
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*out++ = '.';
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write(to_int(ms.count()), 3);
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}
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return;
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}
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auto time = tm();
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time.tm_sec = second();
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format_localized(time, "%OS");
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}
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void on_12_hour_time() { format_localized(time(), "%r"); }
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void on_24_hour_time() {
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write(hour(), 2);
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*out++ = ':';
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write(minute(), 2);
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}
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void on_iso_time() {
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on_24_hour_time();
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*out++ = ':';
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write(second(), 2);
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}
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void on_am_pm() { format_localized(time(), "%p"); }
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};
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} // namespace internal
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template <typename Period> FMT_CONSTEXPR const char *get_units() {
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return FMT_NULL;
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}
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template <> FMT_CONSTEXPR const char *get_units<std::atto>() { return "as"; }
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template <> FMT_CONSTEXPR const char *get_units<std::femto>() { return "fs"; }
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template <> FMT_CONSTEXPR const char *get_units<std::pico>() { return "ps"; }
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template <> FMT_CONSTEXPR const char *get_units<std::nano>() { return "ns"; }
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template <> FMT_CONSTEXPR const char *get_units<std::micro>() { return "µs"; }
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template <> FMT_CONSTEXPR const char *get_units<std::milli>() { return "ms"; }
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template <> FMT_CONSTEXPR const char *get_units<std::centi>() { return "cs"; }
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template <> FMT_CONSTEXPR const char *get_units<std::deci>() { return "ds"; }
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template <> FMT_CONSTEXPR const char *get_units<std::ratio<1>>() { return "s"; }
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template <> FMT_CONSTEXPR const char *get_units<std::deca>() { return "das"; }
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template <> FMT_CONSTEXPR const char *get_units<std::hecto>() { return "hs"; }
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template <> FMT_CONSTEXPR const char *get_units<std::kilo>() { return "ks"; }
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template <> FMT_CONSTEXPR const char *get_units<std::mega>() { return "Ms"; }
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template <> FMT_CONSTEXPR const char *get_units<std::giga>() { return "Gs"; }
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template <> FMT_CONSTEXPR const char *get_units<std::tera>() { return "Ts"; }
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template <> FMT_CONSTEXPR const char *get_units<std::peta>() { return "Ps"; }
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template <> FMT_CONSTEXPR const char *get_units<std::exa>() { return "Es"; }
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template <> FMT_CONSTEXPR const char *get_units<std::ratio<60>>() {
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return "m";
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}
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template <> FMT_CONSTEXPR const char *get_units<std::ratio<3600>>() {
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return "h";
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}
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template <typename Rep, typename Period, typename Char>
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struct formatter<std::chrono::duration<Rep, Period>, Char> {
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private:
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align_spec spec;
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internal::arg_ref<Char> width_ref;
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mutable basic_string_view<Char> format_str;
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typedef std::chrono::duration<Rep, Period> duration;
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struct spec_handler {
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formatter &f;
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basic_parse_context<Char> &context;
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typedef internal::arg_ref<Char> arg_ref_type;
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template <typename Id>
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FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) {
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context.check_arg_id(arg_id);
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return arg_ref_type(arg_id);
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}
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FMT_CONSTEXPR arg_ref_type make_arg_ref(internal::auto_id) {
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return arg_ref_type(context.next_arg_id());
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}
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void on_error(const char *msg) { throw format_error(msg); }
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void on_fill(Char fill) { f.spec.fill_ = fill; }
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void on_align(alignment align) { f.spec.align_ = align; }
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void on_width(unsigned width) { f.spec.width_ = width; }
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template <typename Id>
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void on_dynamic_width(Id arg_id) {
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f.width_ref = make_arg_ref(arg_id);
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}
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};
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public:
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formatter() : spec() {}
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FMT_CONSTEXPR auto parse(basic_parse_context<Char> &ctx)
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-> decltype(ctx.begin()) {
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auto begin = ctx.begin(), end = ctx.end();
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if (begin == end) return begin;
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spec_handler handler{*this, ctx};
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begin = internal::parse_align(begin, end, handler);
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if (begin == end) return begin;
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begin = internal::parse_width(begin, end, handler);
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end = parse_chrono_format(begin, end, internal::chrono_format_checker());
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format_str = basic_string_view<Char>(&*begin, internal::to_unsigned(end - begin));
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return end;
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}
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template <typename FormatContext>
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auto format(const duration &d, FormatContext &ctx)
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-> decltype(ctx.out()) {
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auto begin = format_str.begin(), end = format_str.end();
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memory_buffer buf;
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typedef output_range<decltype(ctx.out()), Char> range;
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basic_writer<range> w(range(ctx.out()));
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if (begin == end || *begin == '}') {
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if (const char *unit = get_units<Period>())
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format_to(buf, "{}{}", d.count(), unit);
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else if (Period::den == 1)
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format_to(buf, "{}[{}]s", d.count(), Period::num);
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else
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format_to(buf, "{}[{}/{}]s", d.count(), Period::num, Period::den);
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internal::handle_dynamic_spec<internal::width_checker>(
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spec.width_, width_ref, ctx);
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} else {
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auto out = std::back_inserter(buf);
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internal::chrono_formatter<FormatContext, decltype(out)> f(ctx, out);
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f.s = std::chrono::duration_cast<std::chrono::seconds>(d);
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f.ms = std::chrono::duration_cast<std::chrono::milliseconds>(d - f.s);
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parse_chrono_format(begin, end, f);
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}
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w.write(buf.data(), buf.size(), spec);
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return w.out();
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}
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};
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FMT_END_NAMESPACE
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#endif // FMT_CHRONO_H_
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@ -0,0 +1,577 @@
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// Formatting library for C++ - color support
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//
|
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// Copyright (c) 2018 - present, Victor Zverovich and fmt contributors
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// All rights reserved.
|
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//
|
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// For the license information refer to format.h.
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#ifndef FMT_COLOR_H_
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#define FMT_COLOR_H_
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#include "format.h"
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FMT_BEGIN_NAMESPACE
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#ifdef FMT_DEPRECATED_COLORS
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// color and (v)print_colored are deprecated.
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enum color { black, red, green, yellow, blue, magenta, cyan, white };
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FMT_API void vprint_colored(color c, string_view format, format_args args);
|
||||
FMT_API void vprint_colored(color c, wstring_view format, wformat_args args);
|
||||
template <typename... Args>
|
||||
inline void print_colored(color c, string_view format_str,
|
||||
const Args & ... args) {
|
||||
vprint_colored(c, format_str, make_format_args(args...));
|
||||
}
|
||||
template <typename... Args>
|
||||
inline void print_colored(color c, wstring_view format_str,
|
||||
const Args & ... args) {
|
||||
vprint_colored(c, format_str, make_format_args<wformat_context>(args...));
|
||||
}
|
||||
|
||||
inline void vprint_colored(color c, string_view format, format_args args) {
|
||||
char escape[] = "\x1b[30m";
|
||||
escape[3] = static_cast<char>('0' + c);
|
||||
std::fputs(escape, stdout);
|
||||
vprint(format, args);
|
||||
std::fputs(internal::data::RESET_COLOR, stdout);
|
||||
}
|
||||
|
||||
inline void vprint_colored(color c, wstring_view format, wformat_args args) {
|
||||
wchar_t escape[] = L"\x1b[30m";
|
||||
escape[3] = static_cast<wchar_t>('0' + c);
|
||||
std::fputws(escape, stdout);
|
||||
vprint(format, args);
|
||||
std::fputws(internal::data::WRESET_COLOR, stdout);
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
enum class color : uint32_t {
|
||||
alice_blue = 0xF0F8FF, // rgb(240,248,255)
|
||||
antique_white = 0xFAEBD7, // rgb(250,235,215)
|
||||
aqua = 0x00FFFF, // rgb(0,255,255)
|
||||
aquamarine = 0x7FFFD4, // rgb(127,255,212)
|
||||
azure = 0xF0FFFF, // rgb(240,255,255)
|
||||
beige = 0xF5F5DC, // rgb(245,245,220)
|
||||
bisque = 0xFFE4C4, // rgb(255,228,196)
|
||||
black = 0x000000, // rgb(0,0,0)
|
||||
blanched_almond = 0xFFEBCD, // rgb(255,235,205)
|
||||
blue = 0x0000FF, // rgb(0,0,255)
|
||||
blue_violet = 0x8A2BE2, // rgb(138,43,226)
|
||||
brown = 0xA52A2A, // rgb(165,42,42)
|
||||
burly_wood = 0xDEB887, // rgb(222,184,135)
|
||||
cadet_blue = 0x5F9EA0, // rgb(95,158,160)
|
||||
chartreuse = 0x7FFF00, // rgb(127,255,0)
|
||||
chocolate = 0xD2691E, // rgb(210,105,30)
|
||||
coral = 0xFF7F50, // rgb(255,127,80)
|
||||
cornflower_blue = 0x6495ED, // rgb(100,149,237)
|
||||
cornsilk = 0xFFF8DC, // rgb(255,248,220)
|
||||
crimson = 0xDC143C, // rgb(220,20,60)
|
||||
cyan = 0x00FFFF, // rgb(0,255,255)
|
||||
dark_blue = 0x00008B, // rgb(0,0,139)
|
||||
dark_cyan = 0x008B8B, // rgb(0,139,139)
|
||||
dark_golden_rod = 0xB8860B, // rgb(184,134,11)
|
||||
dark_gray = 0xA9A9A9, // rgb(169,169,169)
|
||||
dark_green = 0x006400, // rgb(0,100,0)
|
||||
dark_khaki = 0xBDB76B, // rgb(189,183,107)
|
||||
dark_magenta = 0x8B008B, // rgb(139,0,139)
|
||||
dark_olive_green = 0x556B2F, // rgb(85,107,47)
|
||||
dark_orange = 0xFF8C00, // rgb(255,140,0)
|
||||
dark_orchid = 0x9932CC, // rgb(153,50,204)
|
||||
dark_red = 0x8B0000, // rgb(139,0,0)
|
||||
dark_salmon = 0xE9967A, // rgb(233,150,122)
|
||||
dark_sea_green = 0x8FBC8F, // rgb(143,188,143)
|
||||
dark_slate_blue = 0x483D8B, // rgb(72,61,139)
|
||||
dark_slate_gray = 0x2F4F4F, // rgb(47,79,79)
|
||||
dark_turquoise = 0x00CED1, // rgb(0,206,209)
|
||||
dark_violet = 0x9400D3, // rgb(148,0,211)
|
||||
deep_pink = 0xFF1493, // rgb(255,20,147)
|
||||
deep_sky_blue = 0x00BFFF, // rgb(0,191,255)
|
||||
dim_gray = 0x696969, // rgb(105,105,105)
|
||||
dodger_blue = 0x1E90FF, // rgb(30,144,255)
|
||||
fire_brick = 0xB22222, // rgb(178,34,34)
|
||||
floral_white = 0xFFFAF0, // rgb(255,250,240)
|
||||
forest_green = 0x228B22, // rgb(34,139,34)
|
||||
fuchsia = 0xFF00FF, // rgb(255,0,255)
|
||||
gainsboro = 0xDCDCDC, // rgb(220,220,220)
|
||||
ghost_white = 0xF8F8FF, // rgb(248,248,255)
|
||||
gold = 0xFFD700, // rgb(255,215,0)
|
||||
golden_rod = 0xDAA520, // rgb(218,165,32)
|
||||
gray = 0x808080, // rgb(128,128,128)
|
||||
green = 0x008000, // rgb(0,128,0)
|
||||
green_yellow = 0xADFF2F, // rgb(173,255,47)
|
||||
honey_dew = 0xF0FFF0, // rgb(240,255,240)
|
||||
hot_pink = 0xFF69B4, // rgb(255,105,180)
|
||||
indian_red = 0xCD5C5C, // rgb(205,92,92)
|
||||
indigo = 0x4B0082, // rgb(75,0,130)
|
||||
ivory = 0xFFFFF0, // rgb(255,255,240)
|
||||
khaki = 0xF0E68C, // rgb(240,230,140)
|
||||
lavender = 0xE6E6FA, // rgb(230,230,250)
|
||||
lavender_blush = 0xFFF0F5, // rgb(255,240,245)
|
||||
lawn_green = 0x7CFC00, // rgb(124,252,0)
|
||||
lemon_chiffon = 0xFFFACD, // rgb(255,250,205)
|
||||
light_blue = 0xADD8E6, // rgb(173,216,230)
|
||||
light_coral = 0xF08080, // rgb(240,128,128)
|
||||
light_cyan = 0xE0FFFF, // rgb(224,255,255)
|
||||
light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210)
|
||||
light_gray = 0xD3D3D3, // rgb(211,211,211)
|
||||
light_green = 0x90EE90, // rgb(144,238,144)
|
||||
light_pink = 0xFFB6C1, // rgb(255,182,193)
|
||||
light_salmon = 0xFFA07A, // rgb(255,160,122)
|
||||
light_sea_green = 0x20B2AA, // rgb(32,178,170)
|
||||
light_sky_blue = 0x87CEFA, // rgb(135,206,250)
|
||||
light_slate_gray = 0x778899, // rgb(119,136,153)
|
||||
light_steel_blue = 0xB0C4DE, // rgb(176,196,222)
|
||||
light_yellow = 0xFFFFE0, // rgb(255,255,224)
|
||||
lime = 0x00FF00, // rgb(0,255,0)
|
||||
lime_green = 0x32CD32, // rgb(50,205,50)
|
||||
linen = 0xFAF0E6, // rgb(250,240,230)
|
||||
magenta = 0xFF00FF, // rgb(255,0,255)
|
||||
maroon = 0x800000, // rgb(128,0,0)
|
||||
medium_aquamarine = 0x66CDAA, // rgb(102,205,170)
|
||||
medium_blue = 0x0000CD, // rgb(0,0,205)
|
||||
medium_orchid = 0xBA55D3, // rgb(186,85,211)
|
||||
medium_purple = 0x9370DB, // rgb(147,112,219)
|
||||
medium_sea_green = 0x3CB371, // rgb(60,179,113)
|
||||
medium_slate_blue = 0x7B68EE, // rgb(123,104,238)
|
||||
medium_spring_green = 0x00FA9A, // rgb(0,250,154)
|
||||
medium_turquoise = 0x48D1CC, // rgb(72,209,204)
|
||||
medium_violet_red = 0xC71585, // rgb(199,21,133)
|
||||
midnight_blue = 0x191970, // rgb(25,25,112)
|
||||
mint_cream = 0xF5FFFA, // rgb(245,255,250)
|
||||
misty_rose = 0xFFE4E1, // rgb(255,228,225)
|
||||
moccasin = 0xFFE4B5, // rgb(255,228,181)
|
||||
navajo_white = 0xFFDEAD, // rgb(255,222,173)
|
||||
navy = 0x000080, // rgb(0,0,128)
|
||||
old_lace = 0xFDF5E6, // rgb(253,245,230)
|
||||
olive = 0x808000, // rgb(128,128,0)
|
||||
olive_drab = 0x6B8E23, // rgb(107,142,35)
|
||||
orange = 0xFFA500, // rgb(255,165,0)
|
||||
orange_red = 0xFF4500, // rgb(255,69,0)
|
||||
orchid = 0xDA70D6, // rgb(218,112,214)
|
||||
pale_golden_rod = 0xEEE8AA, // rgb(238,232,170)
|
||||
pale_green = 0x98FB98, // rgb(152,251,152)
|
||||
pale_turquoise = 0xAFEEEE, // rgb(175,238,238)
|
||||
pale_violet_red = 0xDB7093, // rgb(219,112,147)
|
||||
papaya_whip = 0xFFEFD5, // rgb(255,239,213)
|
||||
peach_puff = 0xFFDAB9, // rgb(255,218,185)
|
||||
peru = 0xCD853F, // rgb(205,133,63)
|
||||
pink = 0xFFC0CB, // rgb(255,192,203)
|
||||
plum = 0xDDA0DD, // rgb(221,160,221)
|
||||
powder_blue = 0xB0E0E6, // rgb(176,224,230)
|
||||
purple = 0x800080, // rgb(128,0,128)
|
||||
rebecca_purple = 0x663399, // rgb(102,51,153)
|
||||
red = 0xFF0000, // rgb(255,0,0)
|
||||
rosy_brown = 0xBC8F8F, // rgb(188,143,143)
|
||||
royal_blue = 0x4169E1, // rgb(65,105,225)
|
||||
saddle_brown = 0x8B4513, // rgb(139,69,19)
|
||||
salmon = 0xFA8072, // rgb(250,128,114)
|
||||
sandy_brown = 0xF4A460, // rgb(244,164,96)
|
||||
sea_green = 0x2E8B57, // rgb(46,139,87)
|
||||
sea_shell = 0xFFF5EE, // rgb(255,245,238)
|
||||
sienna = 0xA0522D, // rgb(160,82,45)
|
||||
silver = 0xC0C0C0, // rgb(192,192,192)
|
||||
sky_blue = 0x87CEEB, // rgb(135,206,235)
|
||||
slate_blue = 0x6A5ACD, // rgb(106,90,205)
|
||||
slate_gray = 0x708090, // rgb(112,128,144)
|
||||
snow = 0xFFFAFA, // rgb(255,250,250)
|
||||
spring_green = 0x00FF7F, // rgb(0,255,127)
|
||||
steel_blue = 0x4682B4, // rgb(70,130,180)
|
||||
tan = 0xD2B48C, // rgb(210,180,140)
|
||||
teal = 0x008080, // rgb(0,128,128)
|
||||
thistle = 0xD8BFD8, // rgb(216,191,216)
|
||||
tomato = 0xFF6347, // rgb(255,99,71)
|
||||
turquoise = 0x40E0D0, // rgb(64,224,208)
|
||||
violet = 0xEE82EE, // rgb(238,130,238)
|
||||
wheat = 0xF5DEB3, // rgb(245,222,179)
|
||||
white = 0xFFFFFF, // rgb(255,255,255)
|
||||
white_smoke = 0xF5F5F5, // rgb(245,245,245)
|
||||
yellow = 0xFFFF00, // rgb(255,255,0)
|
||||
yellow_green = 0x9ACD32 // rgb(154,205,50)
|
||||
}; // enum class color
|
||||
|
||||
enum class terminal_color : uint8_t {
|
||||
black = 30,
|
||||
red,
|
||||
green,
|
||||
yellow,
|
||||
blue,
|
||||
magenta,
|
||||
cyan,
|
||||
white,
|
||||
bright_black = 90,
|
||||
bright_red,
|
||||
bright_green,
|
||||
bright_yellow,
|
||||
bright_blue,
|
||||
bright_magenta,
|
||||
bright_cyan,
|
||||
bright_white
|
||||
}; // enum class terminal_color
|
||||
|
||||
enum class emphasis : uint8_t {
|
||||
bold = 1,
|
||||
italic = 1 << 1,
|
||||
underline = 1 << 2,
|
||||
strikethrough = 1 << 3
|
||||
}; // enum class emphasis
|
||||
|
||||
// rgb is a struct for red, green and blue colors.
|
||||
// We use rgb as name because some editors will show it as color direct in the
|
||||
// editor.
|
||||
struct rgb {
|
||||
FMT_CONSTEXPR_DECL rgb() : r(0), g(0), b(0) {}
|
||||
FMT_CONSTEXPR_DECL rgb(uint8_t r_, uint8_t g_, uint8_t b_)
|
||||
: r(r_), g(g_), b(b_) {}
|
||||
FMT_CONSTEXPR_DECL rgb(uint32_t hex)
|
||||
: r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b((hex) & 0xFF) {}
|
||||
FMT_CONSTEXPR_DECL rgb(color hex)
|
||||
: r((uint32_t(hex) >> 16) & 0xFF), g((uint32_t(hex) >> 8) & 0xFF),
|
||||
b(uint32_t(hex) & 0xFF) {}
|
||||
uint8_t r;
|
||||
uint8_t g;
|
||||
uint8_t b;
|
||||
};
|
||||
|
||||
namespace internal {
|
||||
|
||||
// color is a struct of either a rgb color or a terminal color.
|
||||
struct color_type {
|
||||
FMT_CONSTEXPR color_type() FMT_NOEXCEPT
|
||||
: is_rgb(), value{} {}
|
||||
FMT_CONSTEXPR color_type(color rgb_color) FMT_NOEXCEPT
|
||||
: is_rgb(true), value{} {
|
||||
value.rgb_color = static_cast<uint32_t>(rgb_color);
|
||||
}
|
||||
FMT_CONSTEXPR color_type(rgb rgb_color) FMT_NOEXCEPT
|
||||
: is_rgb(true), value{} {
|
||||
value.rgb_color = (static_cast<uint32_t>(rgb_color.r) << 16)
|
||||
| (static_cast<uint32_t>(rgb_color.g) << 8) | rgb_color.b;
|
||||
}
|
||||
FMT_CONSTEXPR color_type(terminal_color term_color) FMT_NOEXCEPT
|
||||
: is_rgb(), value{} {
|
||||
value.term_color = static_cast<uint8_t>(term_color);
|
||||
}
|
||||
bool is_rgb;
|
||||
union color_union {
|
||||
uint8_t term_color;
|
||||
uint32_t rgb_color;
|
||||
} value;
|
||||
};
|
||||
} // namespace internal
|
||||
|
||||
// Experimental text formatting support.
|
||||
class text_style {
|
||||
public:
|
||||
FMT_CONSTEXPR text_style(emphasis em = emphasis()) FMT_NOEXCEPT
|
||||
: set_foreground_color(), set_background_color(), ems(em) {}
|
||||
|
||||
FMT_CONSTEXPR text_style &operator|=(const text_style &rhs) {
|
||||
if (!set_foreground_color) {
|
||||
set_foreground_color = rhs.set_foreground_color;
|
||||
foreground_color = rhs.foreground_color;
|
||||
} else if (rhs.set_foreground_color) {
|
||||
if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
|
||||
throw format_error("can't OR a terminal color");
|
||||
foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color;
|
||||
}
|
||||
|
||||
if (!set_background_color) {
|
||||
set_background_color = rhs.set_background_color;
|
||||
background_color = rhs.background_color;
|
||||
} else if (rhs.set_background_color) {
|
||||
if (!background_color.is_rgb || !rhs.background_color.is_rgb)
|
||||
throw format_error("can't OR a terminal color");
|
||||
background_color.value.rgb_color |= rhs.background_color.value.rgb_color;
|
||||
}
|
||||
|
||||
ems = static_cast<emphasis>(static_cast<uint8_t>(ems) |
|
||||
static_cast<uint8_t>(rhs.ems));
|
||||
return *this;
|
||||
}
|
||||
|
||||
friend FMT_CONSTEXPR
|
||||
text_style operator|(text_style lhs, const text_style &rhs) {
|
||||
return lhs |= rhs;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR text_style &operator&=(const text_style &rhs) {
|
||||
if (!set_foreground_color) {
|
||||
set_foreground_color = rhs.set_foreground_color;
|
||||
foreground_color = rhs.foreground_color;
|
||||
} else if (rhs.set_foreground_color) {
|
||||
if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
|
||||
throw format_error("can't AND a terminal color");
|
||||
foreground_color.value.rgb_color &= rhs.foreground_color.value.rgb_color;
|
||||
}
|
||||
|
||||
if (!set_background_color) {
|
||||
set_background_color = rhs.set_background_color;
|
||||
background_color = rhs.background_color;
|
||||
} else if (rhs.set_background_color) {
|
||||
if (!background_color.is_rgb || !rhs.background_color.is_rgb)
|
||||
throw format_error("can't AND a terminal color");
|
||||
background_color.value.rgb_color &= rhs.background_color.value.rgb_color;
|
||||
}
|
||||
|
||||
ems = static_cast<emphasis>(static_cast<uint8_t>(ems) &
|
||||
static_cast<uint8_t>(rhs.ems));
|
||||
return *this;
|
||||
}
|
||||
|
||||
friend FMT_CONSTEXPR
|
||||
text_style operator&(text_style lhs, const text_style &rhs) {
|
||||
return lhs &= rhs;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR bool has_foreground() const FMT_NOEXCEPT {
|
||||
return set_foreground_color;
|
||||
}
|
||||
FMT_CONSTEXPR bool has_background() const FMT_NOEXCEPT {
|
||||
return set_background_color;
|
||||
}
|
||||
FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT {
|
||||
return static_cast<uint8_t>(ems) != 0;
|
||||
}
|
||||
FMT_CONSTEXPR internal::color_type get_foreground() const FMT_NOEXCEPT {
|
||||
assert(has_foreground() && "no foreground specified for this style");
|
||||
return foreground_color;
|
||||
}
|
||||
FMT_CONSTEXPR internal::color_type get_background() const FMT_NOEXCEPT {
|
||||
assert(has_background() && "no background specified for this style");
|
||||
return background_color;
|
||||
}
|
||||
FMT_CONSTEXPR emphasis get_emphasis() const FMT_NOEXCEPT {
|
||||
assert(has_emphasis() && "no emphasis specified for this style");
|
||||
return ems;
|
||||
}
|
||||
|
||||
private:
|
||||
FMT_CONSTEXPR text_style(bool is_foreground,
|
||||
internal::color_type text_color) FMT_NOEXCEPT
|
||||
: set_foreground_color(),
|
||||
set_background_color(),
|
||||
ems() {
|
||||
if (is_foreground) {
|
||||
foreground_color = text_color;
|
||||
set_foreground_color = true;
|
||||
} else {
|
||||
background_color = text_color;
|
||||
set_background_color = true;
|
||||
}
|
||||
}
|
||||
|
||||
friend FMT_CONSTEXPR_DECL text_style fg(internal::color_type foreground)
|
||||
FMT_NOEXCEPT;
|
||||
friend FMT_CONSTEXPR_DECL text_style bg(internal::color_type background)
|
||||
FMT_NOEXCEPT;
|
||||
|
||||
internal::color_type foreground_color;
|
||||
internal::color_type background_color;
|
||||
bool set_foreground_color;
|
||||
bool set_background_color;
|
||||
emphasis ems;
|
||||
};
|
||||
|
||||
FMT_CONSTEXPR text_style fg(internal::color_type foreground) FMT_NOEXCEPT {
|
||||
return text_style(/*is_foreground=*/true, foreground);
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR text_style bg(internal::color_type background) FMT_NOEXCEPT {
|
||||
return text_style(/*is_foreground=*/false, background);
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR text_style operator|(emphasis lhs, emphasis rhs) FMT_NOEXCEPT {
|
||||
return text_style(lhs) | rhs;
|
||||
}
|
||||
|
||||
namespace internal {
|
||||
|
||||
template <typename Char>
|
||||
struct ansi_color_escape {
|
||||
FMT_CONSTEXPR ansi_color_escape(internal::color_type text_color,
|
||||
const char * esc) FMT_NOEXCEPT {
|
||||
// If we have a terminal color, we need to output another escape code
|
||||
// sequence.
|
||||
if (!text_color.is_rgb) {
|
||||
bool is_background = esc == internal::data::BACKGROUND_COLOR;
|
||||
uint32_t value = text_color.value.term_color;
|
||||
// Background ASCII codes are the same as the foreground ones but with
|
||||
// 10 more.
|
||||
if (is_background)
|
||||
value += 10u;
|
||||
|
||||
std::size_t index = 0;
|
||||
buffer[index++] = static_cast<Char>('\x1b');
|
||||
buffer[index++] = static_cast<Char>('[');
|
||||
|
||||
if (value >= 100u) {
|
||||
buffer[index++] = static_cast<Char>('1');
|
||||
value %= 100u;
|
||||
}
|
||||
buffer[index++] = static_cast<Char>('0' + value / 10u);
|
||||
buffer[index++] = static_cast<Char>('0' + value % 10u);
|
||||
|
||||
buffer[index++] = static_cast<Char>('m');
|
||||
buffer[index++] = static_cast<Char>('\0');
|
||||
return;
|
||||
}
|
||||
|
||||
for (int i = 0; i < 7; i++) {
|
||||
buffer[i] = static_cast<Char>(esc[i]);
|
||||
}
|
||||
rgb color(text_color.value.rgb_color);
|
||||
to_esc(color.r, buffer + 7, ';');
|
||||
to_esc(color.g, buffer + 11, ';');
|
||||
to_esc(color.b, buffer + 15, 'm');
|
||||
buffer[19] = static_cast<Char>(0);
|
||||
}
|
||||
FMT_CONSTEXPR ansi_color_escape(emphasis em) FMT_NOEXCEPT {
|
||||
uint8_t em_codes[4] = {};
|
||||
uint8_t em_bits = static_cast<uint8_t>(em);
|
||||
if (em_bits & static_cast<uint8_t>(emphasis::bold))
|
||||
em_codes[0] = 1;
|
||||
if (em_bits & static_cast<uint8_t>(emphasis::italic))
|
||||
em_codes[1] = 3;
|
||||
if (em_bits & static_cast<uint8_t>(emphasis::underline))
|
||||
em_codes[2] = 4;
|
||||
if (em_bits & static_cast<uint8_t>(emphasis::strikethrough))
|
||||
em_codes[3] = 9;
|
||||
|
||||
std::size_t index = 0;
|
||||
for (int i = 0; i < 4; ++i) {
|
||||
if (!em_codes[i])
|
||||
continue;
|
||||
buffer[index++] = static_cast<Char>('\x1b');
|
||||
buffer[index++] = static_cast<Char>('[');
|
||||
buffer[index++] = static_cast<Char>('0' + em_codes[i]);
|
||||
buffer[index++] = static_cast<Char>('m');
|
||||
}
|
||||
buffer[index++] = static_cast<Char>(0);
|
||||
}
|
||||
FMT_CONSTEXPR operator const Char *() const FMT_NOEXCEPT { return buffer; }
|
||||
|
||||
private:
|
||||
Char buffer[7u + 3u * 4u + 1u];
|
||||
|
||||
static FMT_CONSTEXPR void to_esc(uint8_t c, Char *out,
|
||||
char delimiter) FMT_NOEXCEPT {
|
||||
out[0] = static_cast<Char>('0' + c / 100);
|
||||
out[1] = static_cast<Char>('0' + c / 10 % 10);
|
||||
out[2] = static_cast<Char>('0' + c % 10);
|
||||
out[3] = static_cast<Char>(delimiter);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Char>
|
||||
FMT_CONSTEXPR ansi_color_escape<Char>
|
||||
make_foreground_color(internal::color_type foreground) FMT_NOEXCEPT {
|
||||
return ansi_color_escape<Char>(foreground, internal::data::FOREGROUND_COLOR);
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
FMT_CONSTEXPR ansi_color_escape<Char>
|
||||
make_background_color(internal::color_type background) FMT_NOEXCEPT {
|
||||
return ansi_color_escape<Char>(background, internal::data::BACKGROUND_COLOR);
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
FMT_CONSTEXPR ansi_color_escape<Char>
|
||||
make_emphasis(emphasis em) FMT_NOEXCEPT {
|
||||
return ansi_color_escape<Char>(em);
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
inline void fputs(const Char *chars, FILE *stream) FMT_NOEXCEPT {
|
||||
std::fputs(chars, stream);
|
||||
}
|
||||
|
||||
template <>
|
||||
inline void fputs<wchar_t>(const wchar_t *chars, FILE *stream) FMT_NOEXCEPT {
|
||||
std::fputws(chars, stream);
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
inline void reset_color(FILE *stream) FMT_NOEXCEPT {
|
||||
fputs(internal::data::RESET_COLOR, stream);
|
||||
}
|
||||
|
||||
template <>
|
||||
inline void reset_color<wchar_t>(FILE *stream) FMT_NOEXCEPT {
|
||||
fputs(internal::data::WRESET_COLOR, stream);
|
||||
}
|
||||
|
||||
// The following specialiazation disables using std::FILE as a character type,
|
||||
// which is needed because or else
|
||||
// fmt::print(stderr, fmt::emphasis::bold, "");
|
||||
// would take stderr (a std::FILE *) as the format string.
|
||||
template <>
|
||||
struct is_string<std::FILE *> : std::false_type {};
|
||||
template <>
|
||||
struct is_string<const std::FILE *> : std::false_type {};
|
||||
} // namespace internal
|
||||
|
||||
template <
|
||||
typename S, typename Char = typename internal::char_t<S>::type>
|
||||
void vprint(std::FILE *f, const text_style &ts, const S &format,
|
||||
basic_format_args<typename buffer_context<Char>::type> args) {
|
||||
bool has_style = false;
|
||||
if (ts.has_emphasis()) {
|
||||
has_style = true;
|
||||
internal::fputs<Char>(
|
||||
internal::make_emphasis<Char>(ts.get_emphasis()), f);
|
||||
}
|
||||
if (ts.has_foreground()) {
|
||||
has_style = true;
|
||||
internal::fputs<Char>(
|
||||
internal::make_foreground_color<Char>(ts.get_foreground()), f);
|
||||
}
|
||||
if (ts.has_background()) {
|
||||
has_style = true;
|
||||
internal::fputs<Char>(
|
||||
internal::make_background_color<Char>(ts.get_background()), f);
|
||||
}
|
||||
vprint(f, format, args);
|
||||
if (has_style) {
|
||||
internal::reset_color<Char>(f);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
Formats a string and prints it to the specified file stream using ANSI
|
||||
escape sequences to specify text formatting.
|
||||
Example:
|
||||
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
|
||||
"Elapsed time: {0:.2f} seconds", 1.23);
|
||||
*/
|
||||
template <typename String, typename... Args>
|
||||
typename std::enable_if<internal::is_string<String>::value>::type print(
|
||||
std::FILE *f, const text_style &ts, const String &format_str,
|
||||
const Args &... args) {
|
||||
internal::check_format_string<Args...>(format_str);
|
||||
typedef typename internal::char_t<String>::type char_t;
|
||||
typedef typename buffer_context<char_t>::type context_t;
|
||||
format_arg_store<context_t, Args...> as{args...};
|
||||
vprint(f, ts, format_str, basic_format_args<context_t>(as));
|
||||
}
|
||||
|
||||
/**
|
||||
Formats a string and prints it to stdout using ANSI escape sequences to
|
||||
specify text formatting.
|
||||
Example:
|
||||
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
|
||||
"Elapsed time: {0:.2f} seconds", 1.23);
|
||||
*/
|
||||
template <typename String, typename... Args>
|
||||
typename std::enable_if<internal::is_string<String>::value>::type print(
|
||||
const text_style &ts, const String &format_str,
|
||||
const Args &... args) {
|
||||
return print(stdout, ts, format_str, args...);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_COLOR_H_
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,972 @@
|
|||
// Formatting library for C++
|
||||
//
|
||||
// Copyright (c) 2012 - 2016, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
#ifndef FMT_FORMAT_INL_H_
|
||||
#define FMT_FORMAT_INL_H_
|
||||
|
||||
#include "format.h"
|
||||
|
||||
#include <string.h>
|
||||
|
||||
#include <cctype>
|
||||
#include <cerrno>
|
||||
#include <climits>
|
||||
#include <cmath>
|
||||
#include <cstdarg>
|
||||
#include <cstddef> // for std::ptrdiff_t
|
||||
#include <cstring> // for std::memmove
|
||||
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
|
||||
# include <locale>
|
||||
#endif
|
||||
|
||||
#if FMT_USE_WINDOWS_H
|
||||
# if !defined(FMT_HEADER_ONLY) && !defined(WIN32_LEAN_AND_MEAN)
|
||||
# define WIN32_LEAN_AND_MEAN
|
||||
# endif
|
||||
# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX)
|
||||
# include <windows.h>
|
||||
# else
|
||||
# define NOMINMAX
|
||||
# include <windows.h>
|
||||
# undef NOMINMAX
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#if FMT_EXCEPTIONS
|
||||
# define FMT_TRY try
|
||||
# define FMT_CATCH(x) catch (x)
|
||||
#else
|
||||
# define FMT_TRY if (true)
|
||||
# define FMT_CATCH(x) if (false)
|
||||
#endif
|
||||
|
||||
#ifdef _MSC_VER
|
||||
# pragma warning(push)
|
||||
# pragma warning(disable: 4127) // conditional expression is constant
|
||||
# pragma warning(disable: 4702) // unreachable code
|
||||
// Disable deprecation warning for strerror. The latter is not called but
|
||||
// MSVC fails to detect it.
|
||||
# pragma warning(disable: 4996)
|
||||
#endif
|
||||
|
||||
// Dummy implementations of strerror_r and strerror_s called if corresponding
|
||||
// system functions are not available.
|
||||
inline fmt::internal::null<> strerror_r(int, char *, ...) {
|
||||
return fmt::internal::null<>();
|
||||
}
|
||||
inline fmt::internal::null<> strerror_s(char *, std::size_t, ...) {
|
||||
return fmt::internal::null<>();
|
||||
}
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
|
||||
namespace {
|
||||
|
||||
#ifndef _MSC_VER
|
||||
# define FMT_SNPRINTF snprintf
|
||||
#else // _MSC_VER
|
||||
inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) {
|
||||
va_list args;
|
||||
va_start(args, format);
|
||||
int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args);
|
||||
va_end(args);
|
||||
return result;
|
||||
}
|
||||
# define FMT_SNPRINTF fmt_snprintf
|
||||
#endif // _MSC_VER
|
||||
|
||||
#if defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
|
||||
# define FMT_SWPRINTF snwprintf
|
||||
#else
|
||||
# define FMT_SWPRINTF swprintf
|
||||
#endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
|
||||
|
||||
typedef void (*FormatFunc)(internal::buffer &, int, string_view);
|
||||
|
||||
// Portable thread-safe version of strerror.
|
||||
// Sets buffer to point to a string describing the error code.
|
||||
// This can be either a pointer to a string stored in buffer,
|
||||
// or a pointer to some static immutable string.
|
||||
// Returns one of the following values:
|
||||
// 0 - success
|
||||
// ERANGE - buffer is not large enough to store the error message
|
||||
// other - failure
|
||||
// Buffer should be at least of size 1.
|
||||
int safe_strerror(
|
||||
int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT {
|
||||
FMT_ASSERT(buffer != FMT_NULL && buffer_size != 0, "invalid buffer");
|
||||
|
||||
class dispatcher {
|
||||
private:
|
||||
int error_code_;
|
||||
char *&buffer_;
|
||||
std::size_t buffer_size_;
|
||||
|
||||
// A noop assignment operator to avoid bogus warnings.
|
||||
void operator=(const dispatcher &) {}
|
||||
|
||||
// Handle the result of XSI-compliant version of strerror_r.
|
||||
int handle(int result) {
|
||||
// glibc versions before 2.13 return result in errno.
|
||||
return result == -1 ? errno : result;
|
||||
}
|
||||
|
||||
// Handle the result of GNU-specific version of strerror_r.
|
||||
int handle(char *message) {
|
||||
// If the buffer is full then the message is probably truncated.
|
||||
if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
|
||||
return ERANGE;
|
||||
buffer_ = message;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Handle the case when strerror_r is not available.
|
||||
int handle(internal::null<>) {
|
||||
return fallback(strerror_s(buffer_, buffer_size_, error_code_));
|
||||
}
|
||||
|
||||
// Fallback to strerror_s when strerror_r is not available.
|
||||
int fallback(int result) {
|
||||
// If the buffer is full then the message is probably truncated.
|
||||
return result == 0 && strlen(buffer_) == buffer_size_ - 1 ?
|
||||
ERANGE : result;
|
||||
}
|
||||
|
||||
#if !FMT_MSC_VER
|
||||
// Fallback to strerror if strerror_r and strerror_s are not available.
|
||||
int fallback(internal::null<>) {
|
||||
errno = 0;
|
||||
buffer_ = strerror(error_code_);
|
||||
return errno;
|
||||
}
|
||||
#endif
|
||||
|
||||
public:
|
||||
dispatcher(int err_code, char *&buf, std::size_t buf_size)
|
||||
: error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
|
||||
|
||||
int run() {
|
||||
return handle(strerror_r(error_code_, buffer_, buffer_size_));
|
||||
}
|
||||
};
|
||||
return dispatcher(error_code, buffer, buffer_size).run();
|
||||
}
|
||||
|
||||
void format_error_code(internal::buffer &out, int error_code,
|
||||
string_view message) FMT_NOEXCEPT {
|
||||
// Report error code making sure that the output fits into
|
||||
// inline_buffer_size to avoid dynamic memory allocation and potential
|
||||
// bad_alloc.
|
||||
out.resize(0);
|
||||
static const char SEP[] = ": ";
|
||||
static const char ERROR_STR[] = "error ";
|
||||
// Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
|
||||
std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
|
||||
typedef internal::int_traits<int>::main_type main_type;
|
||||
main_type abs_value = static_cast<main_type>(error_code);
|
||||
if (internal::is_negative(error_code)) {
|
||||
abs_value = 0 - abs_value;
|
||||
++error_code_size;
|
||||
}
|
||||
error_code_size += internal::to_unsigned(internal::count_digits(abs_value));
|
||||
writer w(out);
|
||||
if (message.size() <= inline_buffer_size - error_code_size) {
|
||||
w.write(message);
|
||||
w.write(SEP);
|
||||
}
|
||||
w.write(ERROR_STR);
|
||||
w.write(error_code);
|
||||
assert(out.size() <= inline_buffer_size);
|
||||
}
|
||||
|
||||
void report_error(FormatFunc func, int error_code,
|
||||
string_view message) FMT_NOEXCEPT {
|
||||
memory_buffer full_message;
|
||||
func(full_message, error_code, message);
|
||||
// Use Writer::data instead of Writer::c_str to avoid potential memory
|
||||
// allocation.
|
||||
std::fwrite(full_message.data(), full_message.size(), 1, stderr);
|
||||
std::fputc('\n', stderr);
|
||||
}
|
||||
} // namespace
|
||||
|
||||
FMT_FUNC size_t internal::count_code_points(basic_string_view<char8_t> s) {
|
||||
const char8_t *data = s.data();
|
||||
size_t num_code_points = 0;
|
||||
for (size_t i = 0, size = s.size(); i != size; ++i) {
|
||||
if ((data[i] & 0xc0) != 0x80)
|
||||
++num_code_points;
|
||||
}
|
||||
return num_code_points;
|
||||
}
|
||||
|
||||
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
|
||||
namespace internal {
|
||||
|
||||
template <typename Locale>
|
||||
locale_ref::locale_ref(const Locale &loc) : locale_(&loc) {
|
||||
static_assert(std::is_same<Locale, std::locale>::value, "");
|
||||
}
|
||||
|
||||
template <typename Locale>
|
||||
Locale locale_ref::get() const {
|
||||
static_assert(std::is_same<Locale, std::locale>::value, "");
|
||||
return locale_ ? *static_cast<const std::locale*>(locale_) : std::locale();
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
FMT_FUNC Char thousands_sep_impl(locale_ref loc) {
|
||||
return std::use_facet<std::numpunct<Char> >(
|
||||
loc.get<std::locale>()).thousands_sep();
|
||||
}
|
||||
}
|
||||
#else
|
||||
template <typename Char>
|
||||
FMT_FUNC Char internal::thousands_sep_impl(locale_ref) {
|
||||
return FMT_STATIC_THOUSANDS_SEPARATOR;
|
||||
}
|
||||
#endif
|
||||
|
||||
FMT_FUNC void system_error::init(
|
||||
int err_code, string_view format_str, format_args args) {
|
||||
error_code_ = err_code;
|
||||
memory_buffer buffer;
|
||||
format_system_error(buffer, err_code, vformat(format_str, args));
|
||||
std::runtime_error &base = *this;
|
||||
base = std::runtime_error(to_string(buffer));
|
||||
}
|
||||
|
||||
namespace internal {
|
||||
template <typename T>
|
||||
int char_traits<char>::format_float(
|
||||
char *buf, std::size_t size, const char *format, int precision, T value) {
|
||||
return precision < 0 ?
|
||||
FMT_SNPRINTF(buf, size, format, value) :
|
||||
FMT_SNPRINTF(buf, size, format, precision, value);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
int char_traits<wchar_t>::format_float(
|
||||
wchar_t *buf, std::size_t size, const wchar_t *format, int precision,
|
||||
T value) {
|
||||
return precision < 0 ?
|
||||
FMT_SWPRINTF(buf, size, format, value) :
|
||||
FMT_SWPRINTF(buf, size, format, precision, value);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
const char basic_data<T>::DIGITS[] =
|
||||
"0001020304050607080910111213141516171819"
|
||||
"2021222324252627282930313233343536373839"
|
||||
"4041424344454647484950515253545556575859"
|
||||
"6061626364656667686970717273747576777879"
|
||||
"8081828384858687888990919293949596979899";
|
||||
|
||||
#define FMT_POWERS_OF_10(factor) \
|
||||
factor * 10, \
|
||||
factor * 100, \
|
||||
factor * 1000, \
|
||||
factor * 10000, \
|
||||
factor * 100000, \
|
||||
factor * 1000000, \
|
||||
factor * 10000000, \
|
||||
factor * 100000000, \
|
||||
factor * 1000000000
|
||||
|
||||
template <typename T>
|
||||
const uint32_t basic_data<T>::POWERS_OF_10_32[] = {
|
||||
1, FMT_POWERS_OF_10(1)
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
const uint32_t basic_data<T>::ZERO_OR_POWERS_OF_10_32[] = {
|
||||
0, FMT_POWERS_OF_10(1)
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
const uint64_t basic_data<T>::ZERO_OR_POWERS_OF_10_64[] = {
|
||||
0,
|
||||
FMT_POWERS_OF_10(1),
|
||||
FMT_POWERS_OF_10(1000000000ull),
|
||||
10000000000000000000ull
|
||||
};
|
||||
|
||||
// Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340.
|
||||
// These are generated by support/compute-powers.py.
|
||||
template <typename T>
|
||||
const uint64_t basic_data<T>::POW10_SIGNIFICANDS[] = {
|
||||
0xfa8fd5a0081c0288, 0xbaaee17fa23ebf76, 0x8b16fb203055ac76,
|
||||
0xcf42894a5dce35ea, 0x9a6bb0aa55653b2d, 0xe61acf033d1a45df,
|
||||
0xab70fe17c79ac6ca, 0xff77b1fcbebcdc4f, 0xbe5691ef416bd60c,
|
||||
0x8dd01fad907ffc3c, 0xd3515c2831559a83, 0x9d71ac8fada6c9b5,
|
||||
0xea9c227723ee8bcb, 0xaecc49914078536d, 0x823c12795db6ce57,
|
||||
0xc21094364dfb5637, 0x9096ea6f3848984f, 0xd77485cb25823ac7,
|
||||
0xa086cfcd97bf97f4, 0xef340a98172aace5, 0xb23867fb2a35b28e,
|
||||
0x84c8d4dfd2c63f3b, 0xc5dd44271ad3cdba, 0x936b9fcebb25c996,
|
||||
0xdbac6c247d62a584, 0xa3ab66580d5fdaf6, 0xf3e2f893dec3f126,
|
||||
0xb5b5ada8aaff80b8, 0x87625f056c7c4a8b, 0xc9bcff6034c13053,
|
||||
0x964e858c91ba2655, 0xdff9772470297ebd, 0xa6dfbd9fb8e5b88f,
|
||||
0xf8a95fcf88747d94, 0xb94470938fa89bcf, 0x8a08f0f8bf0f156b,
|
||||
0xcdb02555653131b6, 0x993fe2c6d07b7fac, 0xe45c10c42a2b3b06,
|
||||
0xaa242499697392d3, 0xfd87b5f28300ca0e, 0xbce5086492111aeb,
|
||||
0x8cbccc096f5088cc, 0xd1b71758e219652c, 0x9c40000000000000,
|
||||
0xe8d4a51000000000, 0xad78ebc5ac620000, 0x813f3978f8940984,
|
||||
0xc097ce7bc90715b3, 0x8f7e32ce7bea5c70, 0xd5d238a4abe98068,
|
||||
0x9f4f2726179a2245, 0xed63a231d4c4fb27, 0xb0de65388cc8ada8,
|
||||
0x83c7088e1aab65db, 0xc45d1df942711d9a, 0x924d692ca61be758,
|
||||
0xda01ee641a708dea, 0xa26da3999aef774a, 0xf209787bb47d6b85,
|
||||
0xb454e4a179dd1877, 0x865b86925b9bc5c2, 0xc83553c5c8965d3d,
|
||||
0x952ab45cfa97a0b3, 0xde469fbd99a05fe3, 0xa59bc234db398c25,
|
||||
0xf6c69a72a3989f5c, 0xb7dcbf5354e9bece, 0x88fcf317f22241e2,
|
||||
0xcc20ce9bd35c78a5, 0x98165af37b2153df, 0xe2a0b5dc971f303a,
|
||||
0xa8d9d1535ce3b396, 0xfb9b7cd9a4a7443c, 0xbb764c4ca7a44410,
|
||||
0x8bab8eefb6409c1a, 0xd01fef10a657842c, 0x9b10a4e5e9913129,
|
||||
0xe7109bfba19c0c9d, 0xac2820d9623bf429, 0x80444b5e7aa7cf85,
|
||||
0xbf21e44003acdd2d, 0x8e679c2f5e44ff8f, 0xd433179d9c8cb841,
|
||||
0x9e19db92b4e31ba9, 0xeb96bf6ebadf77d9, 0xaf87023b9bf0ee6b,
|
||||
};
|
||||
|
||||
// Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding
|
||||
// to significands above.
|
||||
template <typename T>
|
||||
const int16_t basic_data<T>::POW10_EXPONENTS[] = {
|
||||
-1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954,
|
||||
-927, -901, -874, -847, -821, -794, -768, -741, -715, -688, -661,
|
||||
-635, -608, -582, -555, -529, -502, -475, -449, -422, -396, -369,
|
||||
-343, -316, -289, -263, -236, -210, -183, -157, -130, -103, -77,
|
||||
-50, -24, 3, 30, 56, 83, 109, 136, 162, 189, 216,
|
||||
242, 269, 295, 322, 348, 375, 402, 428, 455, 481, 508,
|
||||
534, 561, 588, 614, 641, 667, 694, 720, 747, 774, 800,
|
||||
827, 853, 880, 907, 933, 960, 986, 1013, 1039, 1066
|
||||
};
|
||||
|
||||
template <typename T> const char basic_data<T>::FOREGROUND_COLOR[] = "\x1b[38;2;";
|
||||
template <typename T> const char basic_data<T>::BACKGROUND_COLOR[] = "\x1b[48;2;";
|
||||
template <typename T> const char basic_data<T>::RESET_COLOR[] = "\x1b[0m";
|
||||
template <typename T> const wchar_t basic_data<T>::WRESET_COLOR[] = L"\x1b[0m";
|
||||
|
||||
// A handmade floating-point number f * pow(2, e).
|
||||
class fp {
|
||||
private:
|
||||
typedef uint64_t significand_type;
|
||||
|
||||
// All sizes are in bits.
|
||||
static FMT_CONSTEXPR_DECL const int char_size =
|
||||
std::numeric_limits<unsigned char>::digits;
|
||||
// Subtract 1 to account for an implicit most significant bit in the
|
||||
// normalized form.
|
||||
static FMT_CONSTEXPR_DECL const int double_significand_size =
|
||||
std::numeric_limits<double>::digits - 1;
|
||||
static FMT_CONSTEXPR_DECL const uint64_t implicit_bit =
|
||||
1ull << double_significand_size;
|
||||
|
||||
public:
|
||||
significand_type f;
|
||||
int e;
|
||||
|
||||
static FMT_CONSTEXPR_DECL const int significand_size =
|
||||
sizeof(significand_type) * char_size;
|
||||
|
||||
fp(): f(0), e(0) {}
|
||||
fp(uint64_t f_val, int e_val): f(f_val), e(e_val) {}
|
||||
|
||||
// Constructs fp from an IEEE754 double. It is a template to prevent compile
|
||||
// errors on platforms where double is not IEEE754.
|
||||
template <typename Double>
|
||||
explicit fp(Double d) {
|
||||
// Assume double is in the format [sign][exponent][significand].
|
||||
typedef std::numeric_limits<Double> limits;
|
||||
const int double_size = static_cast<int>(sizeof(Double) * char_size);
|
||||
const int exponent_size =
|
||||
double_size - double_significand_size - 1; // -1 for sign
|
||||
const uint64_t significand_mask = implicit_bit - 1;
|
||||
const uint64_t exponent_mask = (~0ull >> 1) & ~significand_mask;
|
||||
const int exponent_bias = (1 << exponent_size) - limits::max_exponent - 1;
|
||||
auto u = bit_cast<uint64_t>(d);
|
||||
auto biased_e = (u & exponent_mask) >> double_significand_size;
|
||||
f = u & significand_mask;
|
||||
if (biased_e != 0)
|
||||
f += implicit_bit;
|
||||
else
|
||||
biased_e = 1; // Subnormals use biased exponent 1 (min exponent).
|
||||
e = static_cast<int>(biased_e - exponent_bias - double_significand_size);
|
||||
}
|
||||
|
||||
// Normalizes the value converted from double and multiplied by (1 << SHIFT).
|
||||
template <int SHIFT = 0>
|
||||
void normalize() {
|
||||
// Handle subnormals.
|
||||
auto shifted_implicit_bit = implicit_bit << SHIFT;
|
||||
while ((f & shifted_implicit_bit) == 0) {
|
||||
f <<= 1;
|
||||
--e;
|
||||
}
|
||||
// Subtract 1 to account for hidden bit.
|
||||
auto offset = significand_size - double_significand_size - SHIFT - 1;
|
||||
f <<= offset;
|
||||
e -= offset;
|
||||
}
|
||||
|
||||
// Compute lower and upper boundaries (m^- and m^+ in the Grisu paper), where
|
||||
// a boundary is a value half way between the number and its predecessor
|
||||
// (lower) or successor (upper). The upper boundary is normalized and lower
|
||||
// has the same exponent but may be not normalized.
|
||||
void compute_boundaries(fp &lower, fp &upper) const {
|
||||
lower = f == implicit_bit ?
|
||||
fp((f << 2) - 1, e - 2) : fp((f << 1) - 1, e - 1);
|
||||
upper = fp((f << 1) + 1, e - 1);
|
||||
upper.normalize<1>(); // 1 is to account for the exponent shift above.
|
||||
lower.f <<= lower.e - upper.e;
|
||||
lower.e = upper.e;
|
||||
}
|
||||
};
|
||||
|
||||
// Returns an fp number representing x - y. Result may not be normalized.
|
||||
inline fp operator-(fp x, fp y) {
|
||||
FMT_ASSERT(x.f >= y.f && x.e == y.e, "invalid operands");
|
||||
return fp(x.f - y.f, x.e);
|
||||
}
|
||||
|
||||
// Computes an fp number r with r.f = x.f * y.f / pow(2, 64) rounded to nearest
|
||||
// with half-up tie breaking, r.e = x.e + y.e + 64. Result may not be normalized.
|
||||
FMT_API fp operator*(fp x, fp y);
|
||||
|
||||
// Returns cached power (of 10) c_k = c_k.f * pow(2, c_k.e) such that its
|
||||
// (binary) exponent satisfies min_exponent <= c_k.e <= min_exponent + 3.
|
||||
FMT_API fp get_cached_power(int min_exponent, int &pow10_exponent);
|
||||
|
||||
FMT_FUNC fp operator*(fp x, fp y) {
|
||||
// Multiply 32-bit parts of significands.
|
||||
uint64_t mask = (1ULL << 32) - 1;
|
||||
uint64_t a = x.f >> 32, b = x.f & mask;
|
||||
uint64_t c = y.f >> 32, d = y.f & mask;
|
||||
uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d;
|
||||
// Compute mid 64-bit of result and round.
|
||||
uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31);
|
||||
return fp(ac + (ad >> 32) + (bc >> 32) + (mid >> 32), x.e + y.e + 64);
|
||||
}
|
||||
|
||||
FMT_FUNC fp get_cached_power(int min_exponent, int &pow10_exponent) {
|
||||
const double one_over_log2_10 = 0.30102999566398114; // 1 / log2(10)
|
||||
int index = static_cast<int>(std::ceil(
|
||||
(min_exponent + fp::significand_size - 1) * one_over_log2_10));
|
||||
// Decimal exponent of the first (smallest) cached power of 10.
|
||||
const int first_dec_exp = -348;
|
||||
// Difference between 2 consecutive decimal exponents in cached powers of 10.
|
||||
const int dec_exp_step = 8;
|
||||
index = (index - first_dec_exp - 1) / dec_exp_step + 1;
|
||||
pow10_exponent = first_dec_exp + index * dec_exp_step;
|
||||
return fp(data::POW10_SIGNIFICANDS[index], data::POW10_EXPONENTS[index]);
|
||||
}
|
||||
|
||||
FMT_FUNC bool grisu2_round(
|
||||
char *buf, int &size, int max_digits, uint64_t delta,
|
||||
uint64_t remainder, uint64_t exp, uint64_t diff, int &exp10) {
|
||||
while (remainder < diff && delta - remainder >= exp &&
|
||||
(remainder + exp < diff || diff - remainder > remainder + exp - diff)) {
|
||||
--buf[size - 1];
|
||||
remainder += exp;
|
||||
}
|
||||
if (size > max_digits) {
|
||||
--size;
|
||||
++exp10;
|
||||
if (buf[size] >= '5')
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// Generates output using Grisu2 digit-gen algorithm.
|
||||
FMT_FUNC bool grisu2_gen_digits(
|
||||
char *buf, int &size, uint32_t hi, uint64_t lo, int &exp,
|
||||
uint64_t delta, const fp &one, const fp &diff, int max_digits) {
|
||||
// Generate digits for the most significant part (hi).
|
||||
while (exp > 0) {
|
||||
uint32_t digit = 0;
|
||||
// This optimization by miloyip reduces the number of integer divisions by
|
||||
// one per iteration.
|
||||
switch (exp) {
|
||||
case 10: digit = hi / 1000000000; hi %= 1000000000; break;
|
||||
case 9: digit = hi / 100000000; hi %= 100000000; break;
|
||||
case 8: digit = hi / 10000000; hi %= 10000000; break;
|
||||
case 7: digit = hi / 1000000; hi %= 1000000; break;
|
||||
case 6: digit = hi / 100000; hi %= 100000; break;
|
||||
case 5: digit = hi / 10000; hi %= 10000; break;
|
||||
case 4: digit = hi / 1000; hi %= 1000; break;
|
||||
case 3: digit = hi / 100; hi %= 100; break;
|
||||
case 2: digit = hi / 10; hi %= 10; break;
|
||||
case 1: digit = hi; hi = 0; break;
|
||||
default:
|
||||
FMT_ASSERT(false, "invalid number of digits");
|
||||
}
|
||||
if (digit != 0 || size != 0)
|
||||
buf[size++] = static_cast<char>('0' + digit);
|
||||
--exp;
|
||||
uint64_t remainder = (static_cast<uint64_t>(hi) << -one.e) + lo;
|
||||
if (remainder <= delta || size > max_digits) {
|
||||
return grisu2_round(
|
||||
buf, size, max_digits, delta, remainder,
|
||||
static_cast<uint64_t>(data::POWERS_OF_10_32[exp]) << -one.e,
|
||||
diff.f, exp);
|
||||
}
|
||||
}
|
||||
// Generate digits for the least significant part (lo).
|
||||
for (;;) {
|
||||
lo *= 10;
|
||||
delta *= 10;
|
||||
char digit = static_cast<char>(lo >> -one.e);
|
||||
if (digit != 0 || size != 0)
|
||||
buf[size++] = static_cast<char>('0' + digit);
|
||||
lo &= one.f - 1;
|
||||
--exp;
|
||||
if (lo < delta || size > max_digits) {
|
||||
return grisu2_round(buf, size, max_digits, delta, lo, one.f,
|
||||
diff.f * data::POWERS_OF_10_32[-exp], exp);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#if FMT_CLANG_VERSION
|
||||
# define FMT_FALLTHROUGH [[clang::fallthrough]];
|
||||
#elif FMT_GCC_VERSION >= 700
|
||||
# define FMT_FALLTHROUGH [[gnu::fallthrough]];
|
||||
#else
|
||||
# define FMT_FALLTHROUGH
|
||||
#endif
|
||||
|
||||
struct gen_digits_params {
|
||||
int num_digits;
|
||||
bool fixed;
|
||||
bool upper;
|
||||
bool trailing_zeros;
|
||||
};
|
||||
|
||||
struct prettify_handler {
|
||||
char *data;
|
||||
ptrdiff_t size;
|
||||
buffer &buf;
|
||||
|
||||
explicit prettify_handler(buffer &b, ptrdiff_t n)
|
||||
: data(b.data()), size(n), buf(b) {}
|
||||
~prettify_handler() {
|
||||
assert(buf.size() >= to_unsigned(size));
|
||||
buf.resize(to_unsigned(size));
|
||||
}
|
||||
|
||||
template <typename F>
|
||||
void insert(ptrdiff_t pos, ptrdiff_t n, F f) {
|
||||
std::memmove(data + pos + n, data + pos, to_unsigned(size - pos));
|
||||
f(data + pos);
|
||||
size += n;
|
||||
}
|
||||
|
||||
void insert(ptrdiff_t pos, char c) {
|
||||
std::memmove(data + pos + 1, data + pos, to_unsigned(size - pos));
|
||||
data[pos] = c;
|
||||
++size;
|
||||
}
|
||||
|
||||
void append(ptrdiff_t n, char c) {
|
||||
std::uninitialized_fill_n(data + size, n, c);
|
||||
size += n;
|
||||
}
|
||||
|
||||
void append(char c) { data[size++] = c; }
|
||||
|
||||
void remove_trailing(char c) {
|
||||
while (data[size - 1] == c) --size;
|
||||
}
|
||||
};
|
||||
|
||||
// Writes the exponent exp in the form "[+-]d{2,3}" to buffer.
|
||||
template <typename Handler>
|
||||
FMT_FUNC void write_exponent(int exp, Handler &&h) {
|
||||
FMT_ASSERT(-1000 < exp && exp < 1000, "exponent out of range");
|
||||
if (exp < 0) {
|
||||
h.append('-');
|
||||
exp = -exp;
|
||||
} else {
|
||||
h.append('+');
|
||||
}
|
||||
if (exp >= 100) {
|
||||
h.append(static_cast<char>('0' + exp / 100));
|
||||
exp %= 100;
|
||||
const char *d = data::DIGITS + exp * 2;
|
||||
h.append(d[0]);
|
||||
h.append(d[1]);
|
||||
} else {
|
||||
const char *d = data::DIGITS + exp * 2;
|
||||
h.append(d[0]);
|
||||
h.append(d[1]);
|
||||
}
|
||||
}
|
||||
|
||||
struct fill {
|
||||
size_t n;
|
||||
void operator()(char *buf) const {
|
||||
buf[0] = '0';
|
||||
buf[1] = '.';
|
||||
std::uninitialized_fill_n(buf + 2, n, '0');
|
||||
}
|
||||
};
|
||||
|
||||
// The number is given as v = f * pow(10, exp), where f has size digits.
|
||||
template <typename Handler>
|
||||
FMT_FUNC void grisu2_prettify(const gen_digits_params ¶ms,
|
||||
int size, int exp, Handler &&handler) {
|
||||
if (!params.fixed) {
|
||||
// Insert a decimal point after the first digit and add an exponent.
|
||||
handler.insert(1, '.');
|
||||
exp += size - 1;
|
||||
if (size < params.num_digits)
|
||||
handler.append(params.num_digits - size, '0');
|
||||
handler.append(params.upper ? 'E' : 'e');
|
||||
write_exponent(exp, handler);
|
||||
return;
|
||||
}
|
||||
// pow(10, full_exp - 1) <= v <= pow(10, full_exp).
|
||||
int full_exp = size + exp;
|
||||
const int exp_threshold = 21;
|
||||
if (size <= full_exp && full_exp <= exp_threshold) {
|
||||
// 1234e7 -> 12340000000[.0+]
|
||||
handler.append(full_exp - size, '0');
|
||||
int num_zeros = params.num_digits - full_exp;
|
||||
if (num_zeros > 0 && params.trailing_zeros) {
|
||||
handler.append('.');
|
||||
handler.append(num_zeros, '0');
|
||||
}
|
||||
} else if (full_exp > 0) {
|
||||
// 1234e-2 -> 12.34[0+]
|
||||
handler.insert(full_exp, '.');
|
||||
if (!params.trailing_zeros) {
|
||||
// Remove trailing zeros.
|
||||
handler.remove_trailing('0');
|
||||
} else if (params.num_digits > size) {
|
||||
// Add trailing zeros.
|
||||
ptrdiff_t num_zeros = params.num_digits - size;
|
||||
handler.append(num_zeros, '0');
|
||||
}
|
||||
} else {
|
||||
// 1234e-6 -> 0.001234
|
||||
handler.insert(0, 2 - full_exp, fill{to_unsigned(-full_exp)});
|
||||
}
|
||||
}
|
||||
|
||||
struct char_counter {
|
||||
ptrdiff_t size;
|
||||
|
||||
template <typename F>
|
||||
void insert(ptrdiff_t, ptrdiff_t n, F) { size += n; }
|
||||
void insert(ptrdiff_t, char) { ++size; }
|
||||
void append(ptrdiff_t n, char) { size += n; }
|
||||
void append(char) { ++size; }
|
||||
void remove_trailing(char) {}
|
||||
};
|
||||
|
||||
// Converts format specifiers into parameters for digit generation and computes
|
||||
// output buffer size for a number in the range [pow(10, exp - 1), pow(10, exp)
|
||||
// or 0 if exp == 1.
|
||||
FMT_FUNC gen_digits_params process_specs(const core_format_specs &specs,
|
||||
int exp, buffer &buf) {
|
||||
auto params = gen_digits_params();
|
||||
int num_digits = specs.precision >= 0 ? specs.precision : 6;
|
||||
switch (specs.type) {
|
||||
case 'G':
|
||||
params.upper = true;
|
||||
FMT_FALLTHROUGH
|
||||
case '\0': case 'g':
|
||||
params.trailing_zeros = (specs.flags & HASH_FLAG) != 0;
|
||||
if (-4 <= exp && exp < num_digits + 1) {
|
||||
params.fixed = true;
|
||||
if (!specs.type && params.trailing_zeros && exp >= 0)
|
||||
num_digits = exp + 1;
|
||||
}
|
||||
break;
|
||||
case 'F':
|
||||
params.upper = true;
|
||||
FMT_FALLTHROUGH
|
||||
case 'f': {
|
||||
params.fixed = true;
|
||||
params.trailing_zeros = true;
|
||||
int adjusted_min_digits = num_digits + exp;
|
||||
if (adjusted_min_digits > 0)
|
||||
num_digits = adjusted_min_digits;
|
||||
break;
|
||||
}
|
||||
case 'E':
|
||||
params.upper = true;
|
||||
FMT_FALLTHROUGH
|
||||
case 'e':
|
||||
++num_digits;
|
||||
break;
|
||||
}
|
||||
params.num_digits = num_digits;
|
||||
char_counter counter{num_digits};
|
||||
grisu2_prettify(params, params.num_digits, exp - num_digits, counter);
|
||||
buf.resize(to_unsigned(counter.size));
|
||||
return params;
|
||||
}
|
||||
|
||||
template <typename Double>
|
||||
FMT_FUNC typename std::enable_if<sizeof(Double) == sizeof(uint64_t), bool>::type
|
||||
grisu2_format(Double value, buffer &buf, core_format_specs specs) {
|
||||
FMT_ASSERT(value >= 0, "value is negative");
|
||||
if (value == 0) {
|
||||
gen_digits_params params = process_specs(specs, 1, buf);
|
||||
const size_t size = 1;
|
||||
buf[0] = '0';
|
||||
grisu2_prettify(params, size, 0, prettify_handler(buf, size));
|
||||
return true;
|
||||
}
|
||||
|
||||
fp fp_value(value);
|
||||
fp lower, upper; // w^- and w^+ in the Grisu paper.
|
||||
fp_value.compute_boundaries(lower, upper);
|
||||
|
||||
// Find a cached power of 10 close to 1 / upper and use it to scale upper.
|
||||
const int min_exp = -60; // alpha in Grisu.
|
||||
int cached_exp = 0; // K in Grisu.
|
||||
auto cached_pow = get_cached_power( // \tilde{c}_{-k} in Grisu.
|
||||
min_exp - (upper.e + fp::significand_size), cached_exp);
|
||||
cached_exp = -cached_exp;
|
||||
upper = upper * cached_pow; // \tilde{M}^+ in Grisu.
|
||||
--upper.f; // \tilde{M}^+ - 1 ulp -> M^+_{\downarrow}.
|
||||
fp one(1ull << -upper.e, upper.e);
|
||||
// hi (p1 in Grisu) contains the most significant digits of scaled_upper.
|
||||
// hi = floor(upper / one).
|
||||
uint32_t hi = static_cast<uint32_t>(upper.f >> -one.e);
|
||||
int exp = count_digits(hi); // kappa in Grisu.
|
||||
gen_digits_params params = process_specs(specs, cached_exp + exp, buf);
|
||||
fp_value.normalize();
|
||||
fp scaled_value = fp_value * cached_pow;
|
||||
lower = lower * cached_pow; // \tilde{M}^- in Grisu.
|
||||
++lower.f; // \tilde{M}^- + 1 ulp -> M^-_{\uparrow}.
|
||||
uint64_t delta = upper.f - lower.f;
|
||||
fp diff = upper - scaled_value; // wp_w in Grisu.
|
||||
// lo (p2 in Grisu) contains the least significants digits of scaled_upper.
|
||||
// lo = supper % one.
|
||||
uint64_t lo = upper.f & (one.f - 1);
|
||||
int size = 0;
|
||||
if (!grisu2_gen_digits(buf.data(), size, hi, lo, exp, delta, one, diff,
|
||||
params.num_digits)) {
|
||||
buf.clear();
|
||||
return false;
|
||||
}
|
||||
grisu2_prettify(params, size, cached_exp + exp, prettify_handler(buf, size));
|
||||
return true;
|
||||
}
|
||||
|
||||
template <typename Double>
|
||||
void sprintf_format(Double value, internal::buffer &buf,
|
||||
core_format_specs spec) {
|
||||
// Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail.
|
||||
FMT_ASSERT(buf.capacity() != 0, "empty buffer");
|
||||
|
||||
// Build format string.
|
||||
enum { MAX_FORMAT_SIZE = 10}; // longest format: %#-*.*Lg
|
||||
char format[MAX_FORMAT_SIZE];
|
||||
char *format_ptr = format;
|
||||
*format_ptr++ = '%';
|
||||
if (spec.has(HASH_FLAG))
|
||||
*format_ptr++ = '#';
|
||||
if (spec.precision >= 0) {
|
||||
*format_ptr++ = '.';
|
||||
*format_ptr++ = '*';
|
||||
}
|
||||
if (std::is_same<Double, long double>::value)
|
||||
*format_ptr++ = 'L';
|
||||
*format_ptr++ = spec.type;
|
||||
*format_ptr = '\0';
|
||||
|
||||
// Format using snprintf.
|
||||
char *start = FMT_NULL;
|
||||
for (;;) {
|
||||
std::size_t buffer_size = buf.capacity();
|
||||
start = &buf[0];
|
||||
int result = internal::char_traits<char>::format_float(
|
||||
start, buffer_size, format, spec.precision, value);
|
||||
if (result >= 0) {
|
||||
unsigned n = internal::to_unsigned(result);
|
||||
if (n < buf.capacity()) {
|
||||
buf.resize(n);
|
||||
break; // The buffer is large enough - continue with formatting.
|
||||
}
|
||||
buf.reserve(n + 1);
|
||||
} else {
|
||||
// If result is negative we ask to increase the capacity by at least 1,
|
||||
// but as std::vector, the buffer grows exponentially.
|
||||
buf.reserve(buf.capacity() + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
} // namespace internal
|
||||
|
||||
#if FMT_USE_WINDOWS_H
|
||||
|
||||
FMT_FUNC internal::utf8_to_utf16::utf8_to_utf16(string_view s) {
|
||||
static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
|
||||
if (s.size() > INT_MAX)
|
||||
FMT_THROW(windows_error(ERROR_INVALID_PARAMETER, ERROR_MSG));
|
||||
int s_size = static_cast<int>(s.size());
|
||||
if (s_size == 0) {
|
||||
// MultiByteToWideChar does not support zero length, handle separately.
|
||||
buffer_.resize(1);
|
||||
buffer_[0] = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
int length = MultiByteToWideChar(
|
||||
CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, FMT_NULL, 0);
|
||||
if (length == 0)
|
||||
FMT_THROW(windows_error(GetLastError(), ERROR_MSG));
|
||||
buffer_.resize(length + 1);
|
||||
length = MultiByteToWideChar(
|
||||
CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length);
|
||||
if (length == 0)
|
||||
FMT_THROW(windows_error(GetLastError(), ERROR_MSG));
|
||||
buffer_[length] = 0;
|
||||
}
|
||||
|
||||
FMT_FUNC internal::utf16_to_utf8::utf16_to_utf8(wstring_view s) {
|
||||
if (int error_code = convert(s)) {
|
||||
FMT_THROW(windows_error(error_code,
|
||||
"cannot convert string from UTF-16 to UTF-8"));
|
||||
}
|
||||
}
|
||||
|
||||
FMT_FUNC int internal::utf16_to_utf8::convert(wstring_view s) {
|
||||
if (s.size() > INT_MAX)
|
||||
return ERROR_INVALID_PARAMETER;
|
||||
int s_size = static_cast<int>(s.size());
|
||||
if (s_size == 0) {
|
||||
// WideCharToMultiByte does not support zero length, handle separately.
|
||||
buffer_.resize(1);
|
||||
buffer_[0] = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int length = WideCharToMultiByte(
|
||||
CP_UTF8, 0, s.data(), s_size, FMT_NULL, 0, FMT_NULL, FMT_NULL);
|
||||
if (length == 0)
|
||||
return GetLastError();
|
||||
buffer_.resize(length + 1);
|
||||
length = WideCharToMultiByte(
|
||||
CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, FMT_NULL, FMT_NULL);
|
||||
if (length == 0)
|
||||
return GetLastError();
|
||||
buffer_[length] = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
FMT_FUNC void windows_error::init(
|
||||
int err_code, string_view format_str, format_args args) {
|
||||
error_code_ = err_code;
|
||||
memory_buffer buffer;
|
||||
internal::format_windows_error(buffer, err_code, vformat(format_str, args));
|
||||
std::runtime_error &base = *this;
|
||||
base = std::runtime_error(to_string(buffer));
|
||||
}
|
||||
|
||||
FMT_FUNC void internal::format_windows_error(
|
||||
internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT {
|
||||
FMT_TRY {
|
||||
wmemory_buffer buf;
|
||||
buf.resize(inline_buffer_size);
|
||||
for (;;) {
|
||||
wchar_t *system_message = &buf[0];
|
||||
int result = FormatMessageW(
|
||||
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
|
||||
FMT_NULL, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
|
||||
system_message, static_cast<uint32_t>(buf.size()), FMT_NULL);
|
||||
if (result != 0) {
|
||||
utf16_to_utf8 utf8_message;
|
||||
if (utf8_message.convert(system_message) == ERROR_SUCCESS) {
|
||||
writer w(out);
|
||||
w.write(message);
|
||||
w.write(": ");
|
||||
w.write(utf8_message);
|
||||
return;
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
|
||||
break; // Can't get error message, report error code instead.
|
||||
buf.resize(buf.size() * 2);
|
||||
}
|
||||
} FMT_CATCH(...) {}
|
||||
format_error_code(out, error_code, message);
|
||||
}
|
||||
|
||||
#endif // FMT_USE_WINDOWS_H
|
||||
|
||||
FMT_FUNC void format_system_error(
|
||||
internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT {
|
||||
FMT_TRY {
|
||||
memory_buffer buf;
|
||||
buf.resize(inline_buffer_size);
|
||||
for (;;) {
|
||||
char *system_message = &buf[0];
|
||||
int result = safe_strerror(error_code, system_message, buf.size());
|
||||
if (result == 0) {
|
||||
writer w(out);
|
||||
w.write(message);
|
||||
w.write(": ");
|
||||
w.write(system_message);
|
||||
return;
|
||||
}
|
||||
if (result != ERANGE)
|
||||
break; // Can't get error message, report error code instead.
|
||||
buf.resize(buf.size() * 2);
|
||||
}
|
||||
} FMT_CATCH(...) {}
|
||||
format_error_code(out, error_code, message);
|
||||
}
|
||||
|
||||
FMT_FUNC void internal::error_handler::on_error(const char *message) {
|
||||
FMT_THROW(format_error(message));
|
||||
}
|
||||
|
||||
FMT_FUNC void report_system_error(
|
||||
int error_code, fmt::string_view message) FMT_NOEXCEPT {
|
||||
report_error(format_system_error, error_code, message);
|
||||
}
|
||||
|
||||
#if FMT_USE_WINDOWS_H
|
||||
FMT_FUNC void report_windows_error(
|
||||
int error_code, fmt::string_view message) FMT_NOEXCEPT {
|
||||
report_error(internal::format_windows_error, error_code, message);
|
||||
}
|
||||
#endif
|
||||
|
||||
FMT_FUNC void vprint(std::FILE *f, string_view format_str, format_args args) {
|
||||
memory_buffer buffer;
|
||||
internal::vformat_to(buffer, format_str,
|
||||
basic_format_args<buffer_context<char>::type>(args));
|
||||
std::fwrite(buffer.data(), 1, buffer.size(), f);
|
||||
}
|
||||
|
||||
FMT_FUNC void vprint(std::FILE *f, wstring_view format_str, wformat_args args) {
|
||||
wmemory_buffer buffer;
|
||||
internal::vformat_to(buffer, format_str, args);
|
||||
std::fwrite(buffer.data(), sizeof(wchar_t), buffer.size(), f);
|
||||
}
|
||||
|
||||
FMT_FUNC void vprint(string_view format_str, format_args args) {
|
||||
vprint(stdout, format_str, args);
|
||||
}
|
||||
|
||||
FMT_FUNC void vprint(wstring_view format_str, wformat_args args) {
|
||||
vprint(stdout, format_str, args);
|
||||
}
|
||||
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#ifdef _MSC_VER
|
||||
# pragma warning(pop)
|
||||
#endif
|
||||
|
||||
#endif // FMT_FORMAT_INL_H_
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,77 @@
|
|||
// Formatting library for C++ - std::locale support
|
||||
//
|
||||
// Copyright (c) 2012 - present, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
#ifndef FMT_LOCALE_H_
|
||||
#define FMT_LOCALE_H_
|
||||
|
||||
#include "format.h"
|
||||
#include <locale>
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
|
||||
namespace internal {
|
||||
template <typename Char>
|
||||
typename buffer_context<Char>::type::iterator vformat_to(
|
||||
const std::locale &loc, basic_buffer<Char> &buf,
|
||||
basic_string_view<Char> format_str,
|
||||
basic_format_args<typename buffer_context<Char>::type> args) {
|
||||
typedef back_insert_range<basic_buffer<Char> > range;
|
||||
return vformat_to<arg_formatter<range>>(
|
||||
buf, to_string_view(format_str), args, internal::locale_ref(loc));
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
std::basic_string<Char> vformat(
|
||||
const std::locale &loc, basic_string_view<Char> format_str,
|
||||
basic_format_args<typename buffer_context<Char>::type> args) {
|
||||
basic_memory_buffer<Char> buffer;
|
||||
internal::vformat_to(loc, buffer, format_str, args);
|
||||
return fmt::to_string(buffer);
|
||||
}
|
||||
}
|
||||
|
||||
template <typename S, typename Char = FMT_CHAR(S)>
|
||||
inline std::basic_string<Char> vformat(
|
||||
const std::locale &loc, const S &format_str,
|
||||
basic_format_args<typename buffer_context<Char>::type> args) {
|
||||
return internal::vformat(loc, to_string_view(format_str), args);
|
||||
}
|
||||
|
||||
template <typename S, typename... Args>
|
||||
inline std::basic_string<FMT_CHAR(S)> format(
|
||||
const std::locale &loc, const S &format_str, const Args &... args) {
|
||||
return internal::vformat(
|
||||
loc, to_string_view(format_str),
|
||||
*internal::checked_args<S, Args...>(format_str, args...));
|
||||
}
|
||||
|
||||
template <typename String, typename OutputIt, typename... Args>
|
||||
inline typename std::enable_if<internal::is_output_iterator<OutputIt>::value,
|
||||
OutputIt>::type
|
||||
vformat_to(OutputIt out, const std::locale &loc, const String &format_str,
|
||||
typename format_args_t<OutputIt, FMT_CHAR(String)>::type args) {
|
||||
typedef output_range<OutputIt, FMT_CHAR(String)> range;
|
||||
return vformat_to<arg_formatter<range>>(
|
||||
range(out), to_string_view(format_str), args, internal::locale_ref(loc));
|
||||
}
|
||||
|
||||
template <typename OutputIt, typename S, typename... Args>
|
||||
inline typename std::enable_if<
|
||||
internal::is_string<S>::value &&
|
||||
internal::is_output_iterator<OutputIt>::value, OutputIt>::type
|
||||
format_to(OutputIt out, const std::locale &loc, const S &format_str,
|
||||
const Args &... args) {
|
||||
internal::check_format_string<Args...>(format_str);
|
||||
typedef typename format_context_t<OutputIt, FMT_CHAR(S)>::type context;
|
||||
format_arg_store<context, Args...> as{args...};
|
||||
return vformat_to(out, loc, to_string_view(format_str),
|
||||
basic_format_args<context>(as));
|
||||
}
|
||||
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_LOCALE_H_
|
||||
|
|
@ -0,0 +1,153 @@
|
|||
// Formatting library for C++ - std::ostream support
|
||||
//
|
||||
// Copyright (c) 2012 - present, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
#ifndef FMT_OSTREAM_H_
|
||||
#define FMT_OSTREAM_H_
|
||||
|
||||
#include "format.h"
|
||||
#include <ostream>
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
namespace internal {
|
||||
|
||||
template <class Char>
|
||||
class formatbuf : public std::basic_streambuf<Char> {
|
||||
private:
|
||||
typedef typename std::basic_streambuf<Char>::int_type int_type;
|
||||
typedef typename std::basic_streambuf<Char>::traits_type traits_type;
|
||||
|
||||
basic_buffer<Char> &buffer_;
|
||||
|
||||
public:
|
||||
formatbuf(basic_buffer<Char> &buffer) : buffer_(buffer) {}
|
||||
|
||||
protected:
|
||||
// The put-area is actually always empty. This makes the implementation
|
||||
// simpler and has the advantage that the streambuf and the buffer are always
|
||||
// in sync and sputc never writes into uninitialized memory. The obvious
|
||||
// disadvantage is that each call to sputc always results in a (virtual) call
|
||||
// to overflow. There is no disadvantage here for sputn since this always
|
||||
// results in a call to xsputn.
|
||||
|
||||
int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE {
|
||||
if (!traits_type::eq_int_type(ch, traits_type::eof()))
|
||||
buffer_.push_back(static_cast<Char>(ch));
|
||||
return ch;
|
||||
}
|
||||
|
||||
std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE {
|
||||
buffer_.append(s, s + count);
|
||||
return count;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Char>
|
||||
struct test_stream : std::basic_ostream<Char> {
|
||||
private:
|
||||
struct null;
|
||||
// Hide all operator<< from std::basic_ostream<Char>.
|
||||
void operator<<(null);
|
||||
};
|
||||
|
||||
// Checks if T has a user-defined operator<< (e.g. not a member of std::ostream).
|
||||
template <typename T, typename Char>
|
||||
class is_streamable {
|
||||
private:
|
||||
template <typename U>
|
||||
static decltype(
|
||||
internal::declval<test_stream<Char>&>()
|
||||
<< internal::declval<U>(), std::true_type()) test(int);
|
||||
|
||||
template <typename>
|
||||
static std::false_type test(...);
|
||||
|
||||
typedef decltype(test<T>(0)) result;
|
||||
|
||||
public:
|
||||
static const bool value = result::value;
|
||||
};
|
||||
|
||||
// Write the content of buf to os.
|
||||
template <typename Char>
|
||||
void write(std::basic_ostream<Char> &os, basic_buffer<Char> &buf) {
|
||||
const Char *data = buf.data();
|
||||
typedef std::make_unsigned<std::streamsize>::type UnsignedStreamSize;
|
||||
UnsignedStreamSize size = buf.size();
|
||||
UnsignedStreamSize max_size =
|
||||
internal::to_unsigned((std::numeric_limits<std::streamsize>::max)());
|
||||
do {
|
||||
UnsignedStreamSize n = size <= max_size ? size : max_size;
|
||||
os.write(data, static_cast<std::streamsize>(n));
|
||||
data += n;
|
||||
size -= n;
|
||||
} while (size != 0);
|
||||
}
|
||||
|
||||
template <typename Char, typename T>
|
||||
void format_value(basic_buffer<Char> &buffer, const T &value) {
|
||||
internal::formatbuf<Char> format_buf(buffer);
|
||||
std::basic_ostream<Char> output(&format_buf);
|
||||
output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
|
||||
output << value;
|
||||
buffer.resize(buffer.size());
|
||||
}
|
||||
} // namespace internal
|
||||
|
||||
// Disable conversion to int if T has an overloaded operator<< which is a free
|
||||
// function (not a member of std::ostream).
|
||||
template <typename T, typename Char>
|
||||
struct convert_to_int<T, Char, void> {
|
||||
static const bool value =
|
||||
convert_to_int<T, Char, int>::value &&
|
||||
!internal::is_streamable<T, Char>::value;
|
||||
};
|
||||
|
||||
// Formats an object of type T that has an overloaded ostream operator<<.
|
||||
template <typename T, typename Char>
|
||||
struct formatter<T, Char,
|
||||
typename std::enable_if<
|
||||
internal::is_streamable<T, Char>::value &&
|
||||
!internal::format_type<
|
||||
typename buffer_context<Char>::type, T>::value>::type>
|
||||
: formatter<basic_string_view<Char>, Char> {
|
||||
|
||||
template <typename Context>
|
||||
auto format(const T &value, Context &ctx) -> decltype(ctx.out()) {
|
||||
basic_memory_buffer<Char> buffer;
|
||||
internal::format_value(buffer, value);
|
||||
basic_string_view<Char> str(buffer.data(), buffer.size());
|
||||
return formatter<basic_string_view<Char>, Char>::format(str, ctx);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Char>
|
||||
inline void vprint(std::basic_ostream<Char> &os,
|
||||
basic_string_view<Char> format_str,
|
||||
basic_format_args<typename buffer_context<Char>::type> args) {
|
||||
basic_memory_buffer<Char> buffer;
|
||||
internal::vformat_to(buffer, format_str, args);
|
||||
internal::write(os, buffer);
|
||||
}
|
||||
/**
|
||||
\rst
|
||||
Prints formatted data to the stream *os*.
|
||||
|
||||
**Example**::
|
||||
|
||||
fmt::print(cerr, "Don't {}!", "panic");
|
||||
\endrst
|
||||
*/
|
||||
template <typename S, typename... Args>
|
||||
inline typename std::enable_if<internal::is_string<S>::value>::type
|
||||
print(std::basic_ostream<FMT_CHAR(S)> &os, const S &format_str,
|
||||
const Args & ... args) {
|
||||
internal::checked_args<S, Args...> ca(format_str, args...);
|
||||
vprint(os, to_string_view(format_str), *ca);
|
||||
}
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_OSTREAM_H_
|
||||
|
|
@ -0,0 +1,324 @@
|
|||
// A C++ interface to POSIX functions.
|
||||
//
|
||||
// Copyright (c) 2012 - 2016, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
#ifndef FMT_POSIX_H_
|
||||
#define FMT_POSIX_H_
|
||||
|
||||
#if defined(__MINGW32__) || defined(__CYGWIN__)
|
||||
// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/.
|
||||
# undef __STRICT_ANSI__
|
||||
#endif
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h> // for O_RDONLY
|
||||
#include <locale.h> // for locale_t
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h> // for strtod_l
|
||||
|
||||
#include <cstddef>
|
||||
|
||||
#if defined __APPLE__ || defined(__FreeBSD__)
|
||||
# include <xlocale.h> // for LC_NUMERIC_MASK on OS X
|
||||
#endif
|
||||
|
||||
#include "format.h"
|
||||
|
||||
#ifndef FMT_POSIX
|
||||
# if defined(_WIN32) && !defined(__MINGW32__)
|
||||
// Fix warnings about deprecated symbols.
|
||||
# define FMT_POSIX(call) _##call
|
||||
# else
|
||||
# define FMT_POSIX(call) call
|
||||
# endif
|
||||
#endif
|
||||
|
||||
// Calls to system functions are wrapped in FMT_SYSTEM for testability.
|
||||
#ifdef FMT_SYSTEM
|
||||
# define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
|
||||
#else
|
||||
# define FMT_SYSTEM(call) call
|
||||
# ifdef _WIN32
|
||||
// Fix warnings about deprecated symbols.
|
||||
# define FMT_POSIX_CALL(call) ::_##call
|
||||
# else
|
||||
# define FMT_POSIX_CALL(call) ::call
|
||||
# endif
|
||||
#endif
|
||||
|
||||
// Retries the expression while it evaluates to error_result and errno
|
||||
// equals to EINTR.
|
||||
#ifndef _WIN32
|
||||
# define FMT_RETRY_VAL(result, expression, error_result) \
|
||||
do { \
|
||||
result = (expression); \
|
||||
} while (result == error_result && errno == EINTR)
|
||||
#else
|
||||
# define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
|
||||
#endif
|
||||
|
||||
#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
|
||||
/**
|
||||
\rst
|
||||
A reference to a null-terminated string. It can be constructed from a C
|
||||
string or ``std::string``.
|
||||
|
||||
You can use one of the following typedefs for common character types:
|
||||
|
||||
+---------------+-----------------------------+
|
||||
| Type | Definition |
|
||||
+===============+=============================+
|
||||
| cstring_view | basic_cstring_view<char> |
|
||||
+---------------+-----------------------------+
|
||||
| wcstring_view | basic_cstring_view<wchar_t> |
|
||||
+---------------+-----------------------------+
|
||||
|
||||
This class is most useful as a parameter type to allow passing
|
||||
different types of strings to a function, for example::
|
||||
|
||||
template <typename... Args>
|
||||
std::string format(cstring_view format_str, const Args & ... args);
|
||||
|
||||
format("{}", 42);
|
||||
format(std::string("{}"), 42);
|
||||
\endrst
|
||||
*/
|
||||
template <typename Char>
|
||||
class basic_cstring_view {
|
||||
private:
|
||||
const Char *data_;
|
||||
|
||||
public:
|
||||
/** Constructs a string reference object from a C string. */
|
||||
basic_cstring_view(const Char *s) : data_(s) {}
|
||||
|
||||
/**
|
||||
\rst
|
||||
Constructs a string reference from an ``std::string`` object.
|
||||
\endrst
|
||||
*/
|
||||
basic_cstring_view(const std::basic_string<Char> &s) : data_(s.c_str()) {}
|
||||
|
||||
/** Returns the pointer to a C string. */
|
||||
const Char *c_str() const { return data_; }
|
||||
};
|
||||
|
||||
typedef basic_cstring_view<char> cstring_view;
|
||||
typedef basic_cstring_view<wchar_t> wcstring_view;
|
||||
|
||||
// An error code.
|
||||
class error_code {
|
||||
private:
|
||||
int value_;
|
||||
|
||||
public:
|
||||
explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {}
|
||||
|
||||
int get() const FMT_NOEXCEPT { return value_; }
|
||||
};
|
||||
|
||||
// A buffered file.
|
||||
class buffered_file {
|
||||
private:
|
||||
FILE *file_;
|
||||
|
||||
friend class file;
|
||||
|
||||
explicit buffered_file(FILE *f) : file_(f) {}
|
||||
|
||||
public:
|
||||
// Constructs a buffered_file object which doesn't represent any file.
|
||||
buffered_file() FMT_NOEXCEPT : file_(FMT_NULL) {}
|
||||
|
||||
// Destroys the object closing the file it represents if any.
|
||||
FMT_API ~buffered_file() FMT_NOEXCEPT;
|
||||
|
||||
private:
|
||||
buffered_file(const buffered_file &) = delete;
|
||||
void operator=(const buffered_file &) = delete;
|
||||
|
||||
|
||||
public:
|
||||
buffered_file(buffered_file &&other) FMT_NOEXCEPT : file_(other.file_) {
|
||||
other.file_ = FMT_NULL;
|
||||
}
|
||||
|
||||
buffered_file& operator=(buffered_file &&other) {
|
||||
close();
|
||||
file_ = other.file_;
|
||||
other.file_ = FMT_NULL;
|
||||
return *this;
|
||||
}
|
||||
|
||||
// Opens a file.
|
||||
FMT_API buffered_file(cstring_view filename, cstring_view mode);
|
||||
|
||||
// Closes the file.
|
||||
FMT_API void close();
|
||||
|
||||
// Returns the pointer to a FILE object representing this file.
|
||||
FILE *get() const FMT_NOEXCEPT { return file_; }
|
||||
|
||||
// We place parentheses around fileno to workaround a bug in some versions
|
||||
// of MinGW that define fileno as a macro.
|
||||
FMT_API int (fileno)() const;
|
||||
|
||||
void vprint(string_view format_str, format_args args) {
|
||||
fmt::vprint(file_, format_str, args);
|
||||
}
|
||||
|
||||
template <typename... Args>
|
||||
inline void print(string_view format_str, const Args & ... args) {
|
||||
vprint(format_str, make_format_args(args...));
|
||||
}
|
||||
};
|
||||
|
||||
// A file. Closed file is represented by a file object with descriptor -1.
|
||||
// Methods that are not declared with FMT_NOEXCEPT may throw
|
||||
// fmt::system_error in case of failure. Note that some errors such as
|
||||
// closing the file multiple times will cause a crash on Windows rather
|
||||
// than an exception. You can get standard behavior by overriding the
|
||||
// invalid parameter handler with _set_invalid_parameter_handler.
|
||||
class file {
|
||||
private:
|
||||
int fd_; // File descriptor.
|
||||
|
||||
// Constructs a file object with a given descriptor.
|
||||
explicit file(int fd) : fd_(fd) {}
|
||||
|
||||
public:
|
||||
// Possible values for the oflag argument to the constructor.
|
||||
enum {
|
||||
RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
|
||||
WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
|
||||
RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing.
|
||||
};
|
||||
|
||||
// Constructs a file object which doesn't represent any file.
|
||||
file() FMT_NOEXCEPT : fd_(-1) {}
|
||||
|
||||
// Opens a file and constructs a file object representing this file.
|
||||
FMT_API file(cstring_view path, int oflag);
|
||||
|
||||
private:
|
||||
file(const file &) = delete;
|
||||
void operator=(const file &) = delete;
|
||||
|
||||
public:
|
||||
file(file &&other) FMT_NOEXCEPT : fd_(other.fd_) {
|
||||
other.fd_ = -1;
|
||||
}
|
||||
|
||||
file& operator=(file &&other) {
|
||||
close();
|
||||
fd_ = other.fd_;
|
||||
other.fd_ = -1;
|
||||
return *this;
|
||||
}
|
||||
|
||||
// Destroys the object closing the file it represents if any.
|
||||
FMT_API ~file() FMT_NOEXCEPT;
|
||||
|
||||
// Returns the file descriptor.
|
||||
int descriptor() const FMT_NOEXCEPT { return fd_; }
|
||||
|
||||
// Closes the file.
|
||||
FMT_API void close();
|
||||
|
||||
// Returns the file size. The size has signed type for consistency with
|
||||
// stat::st_size.
|
||||
FMT_API long long size() const;
|
||||
|
||||
// Attempts to read count bytes from the file into the specified buffer.
|
||||
FMT_API std::size_t read(void *buffer, std::size_t count);
|
||||
|
||||
// Attempts to write count bytes from the specified buffer to the file.
|
||||
FMT_API std::size_t write(const void *buffer, std::size_t count);
|
||||
|
||||
// Duplicates a file descriptor with the dup function and returns
|
||||
// the duplicate as a file object.
|
||||
FMT_API static file dup(int fd);
|
||||
|
||||
// Makes fd be the copy of this file descriptor, closing fd first if
|
||||
// necessary.
|
||||
FMT_API void dup2(int fd);
|
||||
|
||||
// Makes fd be the copy of this file descriptor, closing fd first if
|
||||
// necessary.
|
||||
FMT_API void dup2(int fd, error_code &ec) FMT_NOEXCEPT;
|
||||
|
||||
// Creates a pipe setting up read_end and write_end file objects for reading
|
||||
// and writing respectively.
|
||||
FMT_API static void pipe(file &read_end, file &write_end);
|
||||
|
||||
// Creates a buffered_file object associated with this file and detaches
|
||||
// this file object from the file.
|
||||
FMT_API buffered_file fdopen(const char *mode);
|
||||
};
|
||||
|
||||
// Returns the memory page size.
|
||||
long getpagesize();
|
||||
|
||||
#if (defined(LC_NUMERIC_MASK) || defined(_MSC_VER)) && \
|
||||
!defined(__ANDROID__) && !defined(__CYGWIN__) && !defined(__OpenBSD__) && \
|
||||
!defined(__NEWLIB_H__)
|
||||
# define FMT_LOCALE
|
||||
#endif
|
||||
|
||||
#ifdef FMT_LOCALE
|
||||
// A "C" numeric locale.
|
||||
class Locale {
|
||||
private:
|
||||
# ifdef _MSC_VER
|
||||
typedef _locale_t locale_t;
|
||||
|
||||
enum { LC_NUMERIC_MASK = LC_NUMERIC };
|
||||
|
||||
static locale_t newlocale(int category_mask, const char *locale, locale_t) {
|
||||
return _create_locale(category_mask, locale);
|
||||
}
|
||||
|
||||
static void freelocale(locale_t locale) {
|
||||
_free_locale(locale);
|
||||
}
|
||||
|
||||
static double strtod_l(const char *nptr, char **endptr, _locale_t locale) {
|
||||
return _strtod_l(nptr, endptr, locale);
|
||||
}
|
||||
# endif
|
||||
|
||||
locale_t locale_;
|
||||
|
||||
Locale(const Locale &) = delete;
|
||||
void operator=(const Locale &) = delete;
|
||||
|
||||
public:
|
||||
typedef locale_t Type;
|
||||
|
||||
Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", FMT_NULL)) {
|
||||
if (!locale_)
|
||||
FMT_THROW(system_error(errno, "cannot create locale"));
|
||||
}
|
||||
~Locale() { freelocale(locale_); }
|
||||
|
||||
Type get() const { return locale_; }
|
||||
|
||||
// Converts string to floating-point number and advances str past the end
|
||||
// of the parsed input.
|
||||
double strtod(const char *&str) const {
|
||||
char *end = FMT_NULL;
|
||||
double result = strtod_l(str, &end, locale_);
|
||||
str = end;
|
||||
return result;
|
||||
}
|
||||
};
|
||||
#endif // FMT_LOCALE
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_POSIX_H_
|
||||
|
|
@ -0,0 +1,855 @@
|
|||
// Formatting library for C++
|
||||
//
|
||||
// Copyright (c) 2012 - 2016, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
#ifndef FMT_PRINTF_H_
|
||||
#define FMT_PRINTF_H_
|
||||
|
||||
#include <algorithm> // std::fill_n
|
||||
#include <limits> // std::numeric_limits
|
||||
|
||||
#include "ostream.h"
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
namespace internal {
|
||||
|
||||
// An iterator that produces a null terminator on *end. This simplifies parsing
|
||||
// and allows comparing the performance of processing a null-terminated string
|
||||
// vs string_view.
|
||||
template <typename Char>
|
||||
class null_terminating_iterator {
|
||||
public:
|
||||
typedef std::ptrdiff_t difference_type;
|
||||
typedef Char value_type;
|
||||
typedef const Char* pointer;
|
||||
typedef const Char& reference;
|
||||
typedef std::random_access_iterator_tag iterator_category;
|
||||
|
||||
null_terminating_iterator() : ptr_(0), end_(0) {}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator(const Char *ptr, const Char *end)
|
||||
: ptr_(ptr), end_(end) {}
|
||||
|
||||
template <typename Range>
|
||||
FMT_CONSTEXPR explicit null_terminating_iterator(const Range &r)
|
||||
: ptr_(r.begin()), end_(r.end()) {}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator &operator=(const Char *ptr) {
|
||||
assert(ptr <= end_);
|
||||
ptr_ = ptr;
|
||||
return *this;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR Char operator*() const {
|
||||
return ptr_ != end_ ? *ptr_ : Char();
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator operator++() {
|
||||
++ptr_;
|
||||
return *this;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator operator++(int) {
|
||||
null_terminating_iterator result(*this);
|
||||
++ptr_;
|
||||
return result;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator operator--() {
|
||||
--ptr_;
|
||||
return *this;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator operator+(difference_type n) {
|
||||
return null_terminating_iterator(ptr_ + n, end_);
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator operator-(difference_type n) {
|
||||
return null_terminating_iterator(ptr_ - n, end_);
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR null_terminating_iterator operator+=(difference_type n) {
|
||||
ptr_ += n;
|
||||
return *this;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR difference_type operator-(
|
||||
null_terminating_iterator other) const {
|
||||
return ptr_ - other.ptr_;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR bool operator!=(null_terminating_iterator other) const {
|
||||
return ptr_ != other.ptr_;
|
||||
}
|
||||
|
||||
bool operator>=(null_terminating_iterator other) const {
|
||||
return ptr_ >= other.ptr_;
|
||||
}
|
||||
|
||||
// This should be a friend specialization pointer_from<Char> but the latter
|
||||
// doesn't compile by gcc 5.1 due to a compiler bug.
|
||||
template <typename CharT>
|
||||
friend FMT_CONSTEXPR_DECL const CharT *pointer_from(
|
||||
null_terminating_iterator<CharT> it);
|
||||
|
||||
private:
|
||||
const Char *ptr_;
|
||||
const Char *end_;
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
FMT_CONSTEXPR const T *pointer_from(const T *p) { return p; }
|
||||
|
||||
template <typename Char>
|
||||
FMT_CONSTEXPR const Char *pointer_from(null_terminating_iterator<Char> it) {
|
||||
return it.ptr_;
|
||||
}
|
||||
|
||||
// DEPRECATED: Parses the input as an unsigned integer. This function assumes
|
||||
// that the first character is a digit and presence of a non-digit character at
|
||||
// the end.
|
||||
// it: an iterator pointing to the beginning of the input range.
|
||||
template <typename Iterator, typename ErrorHandler>
|
||||
FMT_CONSTEXPR unsigned parse_nonnegative_int(Iterator &it, ErrorHandler &&eh) {
|
||||
assert('0' <= *it && *it <= '9');
|
||||
if (*it == '0') {
|
||||
++it;
|
||||
return 0;
|
||||
}
|
||||
unsigned value = 0;
|
||||
// Convert to unsigned to prevent a warning.
|
||||
unsigned max_int = (std::numeric_limits<int>::max)();
|
||||
unsigned big = max_int / 10;
|
||||
do {
|
||||
// Check for overflow.
|
||||
if (value > big) {
|
||||
value = max_int + 1;
|
||||
break;
|
||||
}
|
||||
value = value * 10 + unsigned(*it - '0');
|
||||
// Workaround for MSVC "setup_exception stack overflow" error:
|
||||
auto next = it;
|
||||
++next;
|
||||
it = next;
|
||||
} while ('0' <= *it && *it <= '9');
|
||||
if (value > max_int)
|
||||
eh.on_error("number is too big");
|
||||
return value;
|
||||
}
|
||||
|
||||
// Checks if a value fits in int - used to avoid warnings about comparing
|
||||
// signed and unsigned integers.
|
||||
template <bool IsSigned>
|
||||
struct int_checker {
|
||||
template <typename T>
|
||||
static bool fits_in_int(T value) {
|
||||
unsigned max = std::numeric_limits<int>::max();
|
||||
return value <= max;
|
||||
}
|
||||
static bool fits_in_int(bool) { return true; }
|
||||
};
|
||||
|
||||
template <>
|
||||
struct int_checker<true> {
|
||||
template <typename T>
|
||||
static bool fits_in_int(T value) {
|
||||
return value >= std::numeric_limits<int>::min() &&
|
||||
value <= std::numeric_limits<int>::max();
|
||||
}
|
||||
static bool fits_in_int(int) { return true; }
|
||||
};
|
||||
|
||||
class printf_precision_handler: public function<int> {
|
||||
public:
|
||||
template <typename T>
|
||||
typename std::enable_if<std::is_integral<T>::value, int>::type
|
||||
operator()(T value) {
|
||||
if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
|
||||
FMT_THROW(format_error("number is too big"));
|
||||
return static_cast<int>(value);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<!std::is_integral<T>::value, int>::type operator()(T) {
|
||||
FMT_THROW(format_error("precision is not integer"));
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
|
||||
// An argument visitor that returns true iff arg is a zero integer.
|
||||
class is_zero_int: public function<bool> {
|
||||
public:
|
||||
template <typename T>
|
||||
typename std::enable_if<std::is_integral<T>::value, bool>::type
|
||||
operator()(T value) { return value == 0; }
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<!std::is_integral<T>::value, bool>::type
|
||||
operator()(T) { return false; }
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
struct make_unsigned_or_bool : std::make_unsigned<T> {};
|
||||
|
||||
template <>
|
||||
struct make_unsigned_or_bool<bool> {
|
||||
typedef bool type;
|
||||
};
|
||||
|
||||
template <typename T, typename Context>
|
||||
class arg_converter: public function<void> {
|
||||
private:
|
||||
typedef typename Context::char_type Char;
|
||||
|
||||
basic_format_arg<Context> &arg_;
|
||||
typename Context::char_type type_;
|
||||
|
||||
public:
|
||||
arg_converter(basic_format_arg<Context> &arg, Char type)
|
||||
: arg_(arg), type_(type) {}
|
||||
|
||||
void operator()(bool value) {
|
||||
if (type_ != 's')
|
||||
operator()<bool>(value);
|
||||
}
|
||||
|
||||
template <typename U>
|
||||
typename std::enable_if<std::is_integral<U>::value>::type
|
||||
operator()(U value) {
|
||||
bool is_signed = type_ == 'd' || type_ == 'i';
|
||||
typedef typename std::conditional<
|
||||
std::is_same<T, void>::value, U, T>::type TargetType;
|
||||
if (const_check(sizeof(TargetType) <= sizeof(int))) {
|
||||
// Extra casts are used to silence warnings.
|
||||
if (is_signed) {
|
||||
arg_ = internal::make_arg<Context>(
|
||||
static_cast<int>(static_cast<TargetType>(value)));
|
||||
} else {
|
||||
typedef typename make_unsigned_or_bool<TargetType>::type Unsigned;
|
||||
arg_ = internal::make_arg<Context>(
|
||||
static_cast<unsigned>(static_cast<Unsigned>(value)));
|
||||
}
|
||||
} else {
|
||||
if (is_signed) {
|
||||
// glibc's printf doesn't sign extend arguments of smaller types:
|
||||
// std::printf("%lld", -42); // prints "4294967254"
|
||||
// but we don't have to do the same because it's a UB.
|
||||
arg_ = internal::make_arg<Context>(static_cast<long long>(value));
|
||||
} else {
|
||||
arg_ = internal::make_arg<Context>(
|
||||
static_cast<typename make_unsigned_or_bool<U>::type>(value));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template <typename U>
|
||||
typename std::enable_if<!std::is_integral<U>::value>::type operator()(U) {
|
||||
// No coversion needed for non-integral types.
|
||||
}
|
||||
};
|
||||
|
||||
// Converts an integer argument to T for printf, if T is an integral type.
|
||||
// If T is void, the argument is converted to corresponding signed or unsigned
|
||||
// type depending on the type specifier: 'd' and 'i' - signed, other -
|
||||
// unsigned).
|
||||
template <typename T, typename Context, typename Char>
|
||||
void convert_arg(basic_format_arg<Context> &arg, Char type) {
|
||||
visit_format_arg(arg_converter<T, Context>(arg, type), arg);
|
||||
}
|
||||
|
||||
// Converts an integer argument to char for printf.
|
||||
template <typename Context>
|
||||
class char_converter: public function<void> {
|
||||
private:
|
||||
basic_format_arg<Context> &arg_;
|
||||
|
||||
public:
|
||||
explicit char_converter(basic_format_arg<Context> &arg) : arg_(arg) {}
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<std::is_integral<T>::value>::type
|
||||
operator()(T value) {
|
||||
typedef typename Context::char_type Char;
|
||||
arg_ = internal::make_arg<Context>(static_cast<Char>(value));
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<!std::is_integral<T>::value>::type operator()(T) {
|
||||
// No coversion needed for non-integral types.
|
||||
}
|
||||
};
|
||||
|
||||
// Checks if an argument is a valid printf width specifier and sets
|
||||
// left alignment if it is negative.
|
||||
template <typename Char>
|
||||
class printf_width_handler: public function<unsigned> {
|
||||
private:
|
||||
typedef basic_format_specs<Char> format_specs;
|
||||
|
||||
format_specs &spec_;
|
||||
|
||||
public:
|
||||
explicit printf_width_handler(format_specs &spec) : spec_(spec) {}
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<std::is_integral<T>::value, unsigned>::type
|
||||
operator()(T value) {
|
||||
typedef typename internal::int_traits<T>::main_type UnsignedType;
|
||||
UnsignedType width = static_cast<UnsignedType>(value);
|
||||
if (internal::is_negative(value)) {
|
||||
spec_.align_ = ALIGN_LEFT;
|
||||
width = 0 - width;
|
||||
}
|
||||
unsigned int_max = std::numeric_limits<int>::max();
|
||||
if (width > int_max)
|
||||
FMT_THROW(format_error("number is too big"));
|
||||
return static_cast<unsigned>(width);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<!std::is_integral<T>::value, unsigned>::type
|
||||
operator()(T) {
|
||||
FMT_THROW(format_error("width is not integer"));
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Char, typename Context>
|
||||
void printf(basic_buffer<Char> &buf, basic_string_view<Char> format,
|
||||
basic_format_args<Context> args) {
|
||||
Context(std::back_inserter(buf), format, args).format();
|
||||
}
|
||||
} // namespace internal
|
||||
|
||||
using internal::printf; // For printing into memory_buffer.
|
||||
|
||||
template <typename Range>
|
||||
class printf_arg_formatter;
|
||||
|
||||
template <
|
||||
typename OutputIt, typename Char,
|
||||
typename ArgFormatter =
|
||||
printf_arg_formatter<back_insert_range<internal::basic_buffer<Char>>>>
|
||||
class basic_printf_context;
|
||||
|
||||
/**
|
||||
\rst
|
||||
The ``printf`` argument formatter.
|
||||
\endrst
|
||||
*/
|
||||
template <typename Range>
|
||||
class printf_arg_formatter:
|
||||
public internal::function<
|
||||
typename internal::arg_formatter_base<Range>::iterator>,
|
||||
public internal::arg_formatter_base<Range> {
|
||||
private:
|
||||
typedef typename Range::value_type char_type;
|
||||
typedef decltype(internal::declval<Range>().begin()) iterator;
|
||||
typedef internal::arg_formatter_base<Range> base;
|
||||
typedef basic_printf_context<iterator, char_type> context_type;
|
||||
|
||||
context_type &context_;
|
||||
|
||||
void write_null_pointer(char) {
|
||||
this->spec()->type = 0;
|
||||
this->write("(nil)");
|
||||
}
|
||||
|
||||
void write_null_pointer(wchar_t) {
|
||||
this->spec()->type = 0;
|
||||
this->write(L"(nil)");
|
||||
}
|
||||
|
||||
public:
|
||||
typedef typename base::format_specs format_specs;
|
||||
|
||||
/**
|
||||
\rst
|
||||
Constructs an argument formatter object.
|
||||
*buffer* is a reference to the output buffer and *spec* contains format
|
||||
specifier information for standard argument types.
|
||||
\endrst
|
||||
*/
|
||||
printf_arg_formatter(internal::basic_buffer<char_type> &buffer,
|
||||
format_specs &spec, context_type &ctx)
|
||||
: base(back_insert_range<internal::basic_buffer<char_type>>(buffer), &spec,
|
||||
ctx.locale()),
|
||||
context_(ctx) {}
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<std::is_integral<T>::value, iterator>::type
|
||||
operator()(T value) {
|
||||
// MSVC2013 fails to compile separate overloads for bool and char_type so
|
||||
// use std::is_same instead.
|
||||
if (std::is_same<T, bool>::value) {
|
||||
format_specs &fmt_spec = *this->spec();
|
||||
if (fmt_spec.type != 's')
|
||||
return base::operator()(value ? 1 : 0);
|
||||
fmt_spec.type = 0;
|
||||
this->write(value != 0);
|
||||
} else if (std::is_same<T, char_type>::value) {
|
||||
format_specs &fmt_spec = *this->spec();
|
||||
if (fmt_spec.type && fmt_spec.type != 'c')
|
||||
return (*this)(static_cast<int>(value));
|
||||
fmt_spec.flags = 0;
|
||||
fmt_spec.align_ = ALIGN_RIGHT;
|
||||
return base::operator()(value);
|
||||
} else {
|
||||
return base::operator()(value);
|
||||
}
|
||||
return this->out();
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
typename std::enable_if<std::is_floating_point<T>::value, iterator>::type
|
||||
operator()(T value) {
|
||||
return base::operator()(value);
|
||||
}
|
||||
|
||||
/** Formats a null-terminated C string. */
|
||||
iterator operator()(const char *value) {
|
||||
if (value)
|
||||
base::operator()(value);
|
||||
else if (this->spec()->type == 'p')
|
||||
write_null_pointer(char_type());
|
||||
else
|
||||
this->write("(null)");
|
||||
return this->out();
|
||||
}
|
||||
|
||||
/** Formats a null-terminated wide C string. */
|
||||
iterator operator()(const wchar_t *value) {
|
||||
if (value)
|
||||
base::operator()(value);
|
||||
else if (this->spec()->type == 'p')
|
||||
write_null_pointer(char_type());
|
||||
else
|
||||
this->write(L"(null)");
|
||||
return this->out();
|
||||
}
|
||||
|
||||
iterator operator()(basic_string_view<char_type> value) {
|
||||
return base::operator()(value);
|
||||
}
|
||||
|
||||
iterator operator()(monostate value) {
|
||||
return base::operator()(value);
|
||||
}
|
||||
|
||||
/** Formats a pointer. */
|
||||
iterator operator()(const void *value) {
|
||||
if (value)
|
||||
return base::operator()(value);
|
||||
this->spec()->type = 0;
|
||||
write_null_pointer(char_type());
|
||||
return this->out();
|
||||
}
|
||||
|
||||
/** Formats an argument of a custom (user-defined) type. */
|
||||
iterator operator()(typename basic_format_arg<context_type>::handle handle) {
|
||||
handle.format(context_);
|
||||
return this->out();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
struct printf_formatter {
|
||||
template <typename ParseContext>
|
||||
auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { return ctx.begin(); }
|
||||
|
||||
template <typename FormatContext>
|
||||
auto format(const T &value, FormatContext &ctx) -> decltype(ctx.out()) {
|
||||
internal::format_value(internal::get_container(ctx.out()), value);
|
||||
return ctx.out();
|
||||
}
|
||||
};
|
||||
|
||||
/** This template formats data and writes the output to a writer. */
|
||||
template <typename OutputIt, typename Char, typename ArgFormatter>
|
||||
class basic_printf_context :
|
||||
// Inherit publicly as a workaround for the icc bug
|
||||
// https://software.intel.com/en-us/forums/intel-c-compiler/topic/783476.
|
||||
public internal::context_base<
|
||||
OutputIt, basic_printf_context<OutputIt, Char, ArgFormatter>, Char> {
|
||||
public:
|
||||
/** The character type for the output. */
|
||||
typedef Char char_type;
|
||||
|
||||
template <typename T>
|
||||
struct formatter_type { typedef printf_formatter<T> type; };
|
||||
|
||||
private:
|
||||
typedef internal::context_base<OutputIt, basic_printf_context, Char> base;
|
||||
typedef typename base::format_arg format_arg;
|
||||
typedef basic_format_specs<char_type> format_specs;
|
||||
typedef internal::null_terminating_iterator<char_type> iterator;
|
||||
|
||||
void parse_flags(format_specs &spec, iterator &it);
|
||||
|
||||
// Returns the argument with specified index or, if arg_index is equal
|
||||
// to the maximum unsigned value, the next argument.
|
||||
format_arg get_arg(
|
||||
iterator it,
|
||||
unsigned arg_index = (std::numeric_limits<unsigned>::max)());
|
||||
|
||||
// Parses argument index, flags and width and returns the argument index.
|
||||
unsigned parse_header(iterator &it, format_specs &spec);
|
||||
|
||||
public:
|
||||
/**
|
||||
\rst
|
||||
Constructs a ``printf_context`` object. References to the arguments and
|
||||
the writer are stored in the context object so make sure they have
|
||||
appropriate lifetimes.
|
||||
\endrst
|
||||
*/
|
||||
basic_printf_context(OutputIt out, basic_string_view<char_type> format_str,
|
||||
basic_format_args<basic_printf_context> args)
|
||||
: base(out, format_str, args) {}
|
||||
|
||||
using base::parse_context;
|
||||
using base::out;
|
||||
using base::advance_to;
|
||||
|
||||
/** Formats stored arguments and writes the output to the range. */
|
||||
void format();
|
||||
};
|
||||
|
||||
template <typename OutputIt, typename Char, typename AF>
|
||||
void basic_printf_context<OutputIt, Char, AF>::parse_flags(
|
||||
format_specs &spec, iterator &it) {
|
||||
for (;;) {
|
||||
switch (*it++) {
|
||||
case '-':
|
||||
spec.align_ = ALIGN_LEFT;
|
||||
break;
|
||||
case '+':
|
||||
spec.flags |= SIGN_FLAG | PLUS_FLAG;
|
||||
break;
|
||||
case '0':
|
||||
spec.fill_ = '0';
|
||||
break;
|
||||
case ' ':
|
||||
spec.flags |= SIGN_FLAG;
|
||||
break;
|
||||
case '#':
|
||||
spec.flags |= HASH_FLAG;
|
||||
break;
|
||||
default:
|
||||
--it;
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template <typename OutputIt, typename Char, typename AF>
|
||||
typename basic_printf_context<OutputIt, Char, AF>::format_arg
|
||||
basic_printf_context<OutputIt, Char, AF>::get_arg(
|
||||
iterator it, unsigned arg_index) {
|
||||
(void)it;
|
||||
if (arg_index == std::numeric_limits<unsigned>::max())
|
||||
return this->do_get_arg(this->parse_context().next_arg_id());
|
||||
return base::get_arg(arg_index - 1);
|
||||
}
|
||||
|
||||
template <typename OutputIt, typename Char, typename AF>
|
||||
unsigned basic_printf_context<OutputIt, Char, AF>::parse_header(
|
||||
iterator &it, format_specs &spec) {
|
||||
unsigned arg_index = std::numeric_limits<unsigned>::max();
|
||||
char_type c = *it;
|
||||
if (c >= '0' && c <= '9') {
|
||||
// Parse an argument index (if followed by '$') or a width possibly
|
||||
// preceded with '0' flag(s).
|
||||
internal::error_handler eh;
|
||||
unsigned value = parse_nonnegative_int(it, eh);
|
||||
if (*it == '$') { // value is an argument index
|
||||
++it;
|
||||
arg_index = value;
|
||||
} else {
|
||||
if (c == '0')
|
||||
spec.fill_ = '0';
|
||||
if (value != 0) {
|
||||
// Nonzero value means that we parsed width and don't need to
|
||||
// parse it or flags again, so return now.
|
||||
spec.width_ = value;
|
||||
return arg_index;
|
||||
}
|
||||
}
|
||||
}
|
||||
parse_flags(spec, it);
|
||||
// Parse width.
|
||||
if (*it >= '0' && *it <= '9') {
|
||||
internal::error_handler eh;
|
||||
spec.width_ = parse_nonnegative_int(it, eh);
|
||||
} else if (*it == '*') {
|
||||
++it;
|
||||
spec.width_ = visit_format_arg(
|
||||
internal::printf_width_handler<char_type>(spec), get_arg(it));
|
||||
}
|
||||
return arg_index;
|
||||
}
|
||||
|
||||
template <typename OutputIt, typename Char, typename AF>
|
||||
void basic_printf_context<OutputIt, Char, AF>::format() {
|
||||
auto &buffer = internal::get_container(this->out());
|
||||
auto start = iterator(this->parse_context());
|
||||
auto it = start;
|
||||
using internal::pointer_from;
|
||||
while (*it) {
|
||||
char_type c = *it++;
|
||||
if (c != '%') continue;
|
||||
if (*it == c) {
|
||||
buffer.append(pointer_from(start), pointer_from(it));
|
||||
start = ++it;
|
||||
continue;
|
||||
}
|
||||
buffer.append(pointer_from(start), pointer_from(it) - 1);
|
||||
|
||||
format_specs spec;
|
||||
spec.align_ = ALIGN_RIGHT;
|
||||
|
||||
// Parse argument index, flags and width.
|
||||
unsigned arg_index = parse_header(it, spec);
|
||||
|
||||
// Parse precision.
|
||||
if (*it == '.') {
|
||||
++it;
|
||||
if ('0' <= *it && *it <= '9') {
|
||||
internal::error_handler eh;
|
||||
spec.precision = static_cast<int>(parse_nonnegative_int(it, eh));
|
||||
} else if (*it == '*') {
|
||||
++it;
|
||||
spec.precision =
|
||||
visit_format_arg(internal::printf_precision_handler(), get_arg(it));
|
||||
} else {
|
||||
spec.precision = 0;
|
||||
}
|
||||
}
|
||||
|
||||
format_arg arg = get_arg(it, arg_index);
|
||||
if (spec.has(HASH_FLAG) && visit_format_arg(internal::is_zero_int(), arg))
|
||||
spec.flags = static_cast<uint_least8_t>(spec.flags & (~internal::to_unsigned<int>(HASH_FLAG)));
|
||||
if (spec.fill_ == '0') {
|
||||
if (arg.is_arithmetic())
|
||||
spec.align_ = ALIGN_NUMERIC;
|
||||
else
|
||||
spec.fill_ = ' '; // Ignore '0' flag for non-numeric types.
|
||||
}
|
||||
|
||||
// Parse length and convert the argument to the required type.
|
||||
using internal::convert_arg;
|
||||
switch (*it++) {
|
||||
case 'h':
|
||||
if (*it == 'h')
|
||||
convert_arg<signed char>(arg, *++it);
|
||||
else
|
||||
convert_arg<short>(arg, *it);
|
||||
break;
|
||||
case 'l':
|
||||
if (*it == 'l')
|
||||
convert_arg<long long>(arg, *++it);
|
||||
else
|
||||
convert_arg<long>(arg, *it);
|
||||
break;
|
||||
case 'j':
|
||||
convert_arg<intmax_t>(arg, *it);
|
||||
break;
|
||||
case 'z':
|
||||
convert_arg<std::size_t>(arg, *it);
|
||||
break;
|
||||
case 't':
|
||||
convert_arg<std::ptrdiff_t>(arg, *it);
|
||||
break;
|
||||
case 'L':
|
||||
// printf produces garbage when 'L' is omitted for long double, no
|
||||
// need to do the same.
|
||||
break;
|
||||
default:
|
||||
--it;
|
||||
convert_arg<void>(arg, *it);
|
||||
}
|
||||
|
||||
// Parse type.
|
||||
if (!*it)
|
||||
FMT_THROW(format_error("invalid format string"));
|
||||
spec.type = static_cast<char>(*it++);
|
||||
if (arg.is_integral()) {
|
||||
// Normalize type.
|
||||
switch (spec.type) {
|
||||
case 'i': case 'u':
|
||||
spec.type = 'd';
|
||||
break;
|
||||
case 'c':
|
||||
// TODO: handle wchar_t better?
|
||||
visit_format_arg(
|
||||
internal::char_converter<basic_printf_context>(arg), arg);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
start = it;
|
||||
|
||||
// Format argument.
|
||||
visit_format_arg(AF(buffer, spec, *this), arg);
|
||||
}
|
||||
buffer.append(pointer_from(start), pointer_from(it));
|
||||
}
|
||||
|
||||
template <typename Buffer>
|
||||
struct basic_printf_context_t {
|
||||
typedef basic_printf_context<
|
||||
std::back_insert_iterator<Buffer>, typename Buffer::value_type> type;
|
||||
};
|
||||
|
||||
typedef basic_printf_context_t<internal::buffer>::type printf_context;
|
||||
typedef basic_printf_context_t<internal::wbuffer>::type wprintf_context;
|
||||
|
||||
typedef basic_format_args<printf_context> printf_args;
|
||||
typedef basic_format_args<wprintf_context> wprintf_args;
|
||||
|
||||
/**
|
||||
\rst
|
||||
Constructs an `~fmt::format_arg_store` object that contains references to
|
||||
arguments and can be implicitly converted to `~fmt::printf_args`.
|
||||
\endrst
|
||||
*/
|
||||
template<typename... Args>
|
||||
inline format_arg_store<printf_context, Args...>
|
||||
make_printf_args(const Args &... args) { return {args...}; }
|
||||
|
||||
/**
|
||||
\rst
|
||||
Constructs an `~fmt::format_arg_store` object that contains references to
|
||||
arguments and can be implicitly converted to `~fmt::wprintf_args`.
|
||||
\endrst
|
||||
*/
|
||||
template<typename... Args>
|
||||
inline format_arg_store<wprintf_context, Args...>
|
||||
make_wprintf_args(const Args &... args) { return {args...}; }
|
||||
|
||||
template <typename S, typename Char = FMT_CHAR(S)>
|
||||
inline std::basic_string<Char>
|
||||
vsprintf(const S &format,
|
||||
basic_format_args<typename basic_printf_context_t<
|
||||
internal::basic_buffer<Char>>::type> args) {
|
||||
basic_memory_buffer<Char> buffer;
|
||||
printf(buffer, to_string_view(format), args);
|
||||
return to_string(buffer);
|
||||
}
|
||||
|
||||
/**
|
||||
\rst
|
||||
Formats arguments and returns the result as a string.
|
||||
|
||||
**Example**::
|
||||
|
||||
std::string message = fmt::sprintf("The answer is %d", 42);
|
||||
\endrst
|
||||
*/
|
||||
template <typename S, typename... Args>
|
||||
inline FMT_ENABLE_IF_T(
|
||||
internal::is_string<S>::value, std::basic_string<FMT_CHAR(S)>)
|
||||
sprintf(const S &format, const Args & ... args) {
|
||||
internal::check_format_string<Args...>(format);
|
||||
typedef internal::basic_buffer<FMT_CHAR(S)> buffer;
|
||||
typedef typename basic_printf_context_t<buffer>::type context;
|
||||
format_arg_store<context, Args...> as{ args... };
|
||||
return vsprintf(to_string_view(format),
|
||||
basic_format_args<context>(as));
|
||||
}
|
||||
|
||||
template <typename S, typename Char = FMT_CHAR(S)>
|
||||
inline int vfprintf(std::FILE *f, const S &format,
|
||||
basic_format_args<typename basic_printf_context_t<
|
||||
internal::basic_buffer<Char>>::type> args) {
|
||||
basic_memory_buffer<Char> buffer;
|
||||
printf(buffer, to_string_view(format), args);
|
||||
std::size_t size = buffer.size();
|
||||
return std::fwrite(
|
||||
buffer.data(), sizeof(Char), size, f) < size ? -1 : static_cast<int>(size);
|
||||
}
|
||||
|
||||
/**
|
||||
\rst
|
||||
Prints formatted data to the file *f*.
|
||||
|
||||
**Example**::
|
||||
|
||||
fmt::fprintf(stderr, "Don't %s!", "panic");
|
||||
\endrst
|
||||
*/
|
||||
template <typename S, typename... Args>
|
||||
inline FMT_ENABLE_IF_T(internal::is_string<S>::value, int)
|
||||
fprintf(std::FILE *f, const S &format, const Args & ... args) {
|
||||
internal::check_format_string<Args...>(format);
|
||||
typedef internal::basic_buffer<FMT_CHAR(S)> buffer;
|
||||
typedef typename basic_printf_context_t<buffer>::type context;
|
||||
format_arg_store<context, Args...> as{ args... };
|
||||
return vfprintf(f, to_string_view(format),
|
||||
basic_format_args<context>(as));
|
||||
}
|
||||
|
||||
template <typename S, typename Char = FMT_CHAR(S)>
|
||||
inline int vprintf(const S &format,
|
||||
basic_format_args<typename basic_printf_context_t<
|
||||
internal::basic_buffer<Char>>::type> args) {
|
||||
return vfprintf(stdout, to_string_view(format), args);
|
||||
}
|
||||
|
||||
/**
|
||||
\rst
|
||||
Prints formatted data to ``stdout``.
|
||||
|
||||
**Example**::
|
||||
|
||||
fmt::printf("Elapsed time: %.2f seconds", 1.23);
|
||||
\endrst
|
||||
*/
|
||||
template <typename S, typename... Args>
|
||||
inline FMT_ENABLE_IF_T(internal::is_string<S>::value, int)
|
||||
printf(const S &format_str, const Args & ... args) {
|
||||
internal::check_format_string<Args...>(format_str);
|
||||
typedef internal::basic_buffer<FMT_CHAR(S)> buffer;
|
||||
typedef typename basic_printf_context_t<buffer>::type context;
|
||||
format_arg_store<context, Args...> as{ args... };
|
||||
return vprintf(to_string_view(format_str),
|
||||
basic_format_args<context>(as));
|
||||
}
|
||||
|
||||
template <typename S, typename Char = FMT_CHAR(S)>
|
||||
inline int vfprintf(std::basic_ostream<Char> &os,
|
||||
const S &format,
|
||||
basic_format_args<typename basic_printf_context_t<
|
||||
internal::basic_buffer<Char>>::type> args) {
|
||||
basic_memory_buffer<Char> buffer;
|
||||
printf(buffer, to_string_view(format), args);
|
||||
internal::write(os, buffer);
|
||||
return static_cast<int>(buffer.size());
|
||||
}
|
||||
|
||||
/**
|
||||
\rst
|
||||
Prints formatted data to the stream *os*.
|
||||
|
||||
**Example**::
|
||||
|
||||
fmt::fprintf(cerr, "Don't %s!", "panic");
|
||||
\endrst
|
||||
*/
|
||||
template <typename S, typename... Args>
|
||||
inline FMT_ENABLE_IF_T(internal::is_string<S>::value, int)
|
||||
fprintf(std::basic_ostream<FMT_CHAR(S)> &os,
|
||||
const S &format_str, const Args & ... args) {
|
||||
internal::check_format_string<Args...>(format_str);
|
||||
typedef internal::basic_buffer<FMT_CHAR(S)> buffer;
|
||||
typedef typename basic_printf_context_t<buffer>::type context;
|
||||
format_arg_store<context, Args...> as{ args... };
|
||||
return vfprintf(os, to_string_view(format_str),
|
||||
basic_format_args<context>(as));
|
||||
}
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_PRINTF_H_
|
||||
|
|
@ -0,0 +1,308 @@
|
|||
// Formatting library for C++ - the core API
|
||||
//
|
||||
// Copyright (c) 2012 - present, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
//
|
||||
// Copyright (c) 2018 - present, Remotion (Igor Schulz)
|
||||
// All Rights Reserved
|
||||
// {fmt} support for ranges, containers and types tuple interface.
|
||||
|
||||
#ifndef FMT_RANGES_H_
|
||||
#define FMT_RANGES_H_
|
||||
|
||||
#include "format.h"
|
||||
#include <type_traits>
|
||||
|
||||
// output only up to N items from the range.
|
||||
#ifndef FMT_RANGE_OUTPUT_LENGTH_LIMIT
|
||||
# define FMT_RANGE_OUTPUT_LENGTH_LIMIT 256
|
||||
#endif
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
|
||||
template <typename Char>
|
||||
struct formatting_base {
|
||||
template <typename ParseContext>
|
||||
FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
|
||||
return ctx.begin();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Char, typename Enable = void>
|
||||
struct formatting_range : formatting_base<Char> {
|
||||
static FMT_CONSTEXPR_DECL const std::size_t range_length_limit =
|
||||
FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the range.
|
||||
Char prefix;
|
||||
Char delimiter;
|
||||
Char postfix;
|
||||
formatting_range() : prefix('{'), delimiter(','), postfix('}') {}
|
||||
static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true;
|
||||
static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
|
||||
};
|
||||
|
||||
template <typename Char, typename Enable = void>
|
||||
struct formatting_tuple : formatting_base<Char> {
|
||||
Char prefix;
|
||||
Char delimiter;
|
||||
Char postfix;
|
||||
formatting_tuple() : prefix('('), delimiter(','), postfix(')') {}
|
||||
static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true;
|
||||
static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
|
||||
};
|
||||
|
||||
namespace internal {
|
||||
|
||||
template <typename RangeT, typename OutputIterator>
|
||||
void copy(const RangeT &range, OutputIterator out) {
|
||||
for (auto it = range.begin(), end = range.end(); it != end; ++it)
|
||||
*out++ = *it;
|
||||
}
|
||||
|
||||
template <typename OutputIterator>
|
||||
void copy(const char *str, OutputIterator out) {
|
||||
const char *p_curr = str;
|
||||
while (*p_curr) {
|
||||
*out++ = *p_curr++;
|
||||
}
|
||||
}
|
||||
|
||||
template <typename OutputIterator>
|
||||
void copy(char ch, OutputIterator out) {
|
||||
*out++ = ch;
|
||||
}
|
||||
|
||||
/// Return true value if T has std::string interface, like std::string_view.
|
||||
template <typename T>
|
||||
class is_like_std_string {
|
||||
template <typename U>
|
||||
static auto check(U *p) ->
|
||||
decltype(p->find('a'), p->length(), p->data(), int());
|
||||
template <typename>
|
||||
static void check(...);
|
||||
|
||||
public:
|
||||
static FMT_CONSTEXPR_DECL const bool value =
|
||||
!std::is_void<decltype(check<T>(FMT_NULL))>::value;
|
||||
};
|
||||
|
||||
template <typename Char>
|
||||
struct is_like_std_string<fmt::basic_string_view<Char>> : std::true_type {};
|
||||
|
||||
template <typename... Ts>
|
||||
struct conditional_helper {};
|
||||
|
||||
template <typename T, typename _ = void>
|
||||
struct is_range_ : std::false_type {};
|
||||
|
||||
#if !FMT_MSC_VER || FMT_MSC_VER > 1800
|
||||
template <typename T>
|
||||
struct is_range_<T, typename std::conditional<
|
||||
false,
|
||||
conditional_helper<decltype(internal::declval<T>().begin()),
|
||||
decltype(internal::declval<T>().end())>,
|
||||
void>::type> : std::true_type {};
|
||||
#endif
|
||||
|
||||
/// tuple_size and tuple_element check.
|
||||
template <typename T>
|
||||
class is_tuple_like_ {
|
||||
template <typename U>
|
||||
static auto check(U *p) ->
|
||||
decltype(std::tuple_size<U>::value,
|
||||
internal::declval<typename std::tuple_element<0, U>::type>(), int());
|
||||
template <typename>
|
||||
static void check(...);
|
||||
|
||||
public:
|
||||
static FMT_CONSTEXPR_DECL const bool value =
|
||||
!std::is_void<decltype(check<T>(FMT_NULL))>::value;
|
||||
};
|
||||
|
||||
// Check for integer_sequence
|
||||
#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
|
||||
template <typename T, T... N>
|
||||
using integer_sequence = std::integer_sequence<T, N...>;
|
||||
template <std::size_t... N>
|
||||
using index_sequence = std::index_sequence<N...>;
|
||||
template <std::size_t N>
|
||||
using make_index_sequence = std::make_index_sequence<N>;
|
||||
#else
|
||||
template <typename T, T... N>
|
||||
struct integer_sequence {
|
||||
typedef T value_type;
|
||||
|
||||
static FMT_CONSTEXPR std::size_t size() {
|
||||
return sizeof...(N);
|
||||
}
|
||||
};
|
||||
|
||||
template <std::size_t... N>
|
||||
using index_sequence = integer_sequence<std::size_t, N...>;
|
||||
|
||||
template <typename T, std::size_t N, T... Ns>
|
||||
struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {};
|
||||
template <typename T, T... Ns>
|
||||
struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {};
|
||||
|
||||
template <std::size_t N>
|
||||
using make_index_sequence = make_integer_sequence<std::size_t, N>;
|
||||
#endif
|
||||
|
||||
template <class Tuple, class F, size_t... Is>
|
||||
void for_each(index_sequence<Is...>, Tuple &&tup, F &&f) FMT_NOEXCEPT {
|
||||
using std::get;
|
||||
// using free function get<I>(T) now.
|
||||
const int _[] = {0, ((void)f(get<Is>(tup)), 0)...};
|
||||
(void)_; // blocks warnings
|
||||
}
|
||||
|
||||
template <class T>
|
||||
FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value>
|
||||
get_indexes(T const &) { return {}; }
|
||||
|
||||
template <class Tuple, class F>
|
||||
void for_each(Tuple &&tup, F &&f) {
|
||||
const auto indexes = get_indexes(tup);
|
||||
for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f));
|
||||
}
|
||||
|
||||
template<typename Arg>
|
||||
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&,
|
||||
typename std::enable_if<
|
||||
!is_like_std_string<typename std::decay<Arg>::type>::value>::type* = nullptr) {
|
||||
return add_space ? " {}" : "{}";
|
||||
}
|
||||
|
||||
template<typename Arg>
|
||||
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&,
|
||||
typename std::enable_if<
|
||||
is_like_std_string<typename std::decay<Arg>::type>::value>::type* = nullptr) {
|
||||
return add_space ? " \"{}\"" : "\"{}\"";
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char*) {
|
||||
return add_space ? " \"{}\"" : "\"{}\"";
|
||||
}
|
||||
FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t*) {
|
||||
return add_space ? L" \"{}\"" : L"\"{}\"";
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char) {
|
||||
return add_space ? " '{}'" : "'{}'";
|
||||
}
|
||||
FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t) {
|
||||
return add_space ? L" '{}'" : L"'{}'";
|
||||
}
|
||||
|
||||
} // namespace internal
|
||||
|
||||
template <typename T>
|
||||
struct is_tuple_like {
|
||||
static FMT_CONSTEXPR_DECL const bool value =
|
||||
internal::is_tuple_like_<T>::value && !internal::is_range_<T>::value;
|
||||
};
|
||||
|
||||
template <typename TupleT, typename Char>
|
||||
struct formatter<TupleT, Char,
|
||||
typename std::enable_if<fmt::is_tuple_like<TupleT>::value>::type> {
|
||||
private:
|
||||
// C++11 generic lambda for format()
|
||||
template <typename FormatContext>
|
||||
struct format_each {
|
||||
template <typename T>
|
||||
void operator()(const T& v) {
|
||||
if (i > 0) {
|
||||
if (formatting.add_prepostfix_space) {
|
||||
*out++ = ' ';
|
||||
}
|
||||
internal::copy(formatting.delimiter, out);
|
||||
}
|
||||
format_to(out,
|
||||
internal::format_str_quoted(
|
||||
(formatting.add_delimiter_spaces && i > 0), v),
|
||||
v);
|
||||
++i;
|
||||
}
|
||||
|
||||
formatting_tuple<Char>& formatting;
|
||||
std::size_t& i;
|
||||
typename std::add_lvalue_reference<decltype(std::declval<FormatContext>().out())>::type out;
|
||||
};
|
||||
|
||||
public:
|
||||
formatting_tuple<Char> formatting;
|
||||
|
||||
template <typename ParseContext>
|
||||
FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
|
||||
return formatting.parse(ctx);
|
||||
}
|
||||
|
||||
template <typename FormatContext = format_context>
|
||||
auto format(const TupleT &values, FormatContext &ctx) -> decltype(ctx.out()) {
|
||||
auto out = ctx.out();
|
||||
std::size_t i = 0;
|
||||
internal::copy(formatting.prefix, out);
|
||||
|
||||
internal::for_each(values, format_each<FormatContext>{formatting, i, out});
|
||||
if (formatting.add_prepostfix_space) {
|
||||
*out++ = ' ';
|
||||
}
|
||||
internal::copy(formatting.postfix, out);
|
||||
|
||||
return ctx.out();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
struct is_range {
|
||||
static FMT_CONSTEXPR_DECL const bool value =
|
||||
internal::is_range_<T>::value && !internal::is_like_std_string<T>::value;
|
||||
};
|
||||
|
||||
template <typename RangeT, typename Char>
|
||||
struct formatter<RangeT, Char,
|
||||
typename std::enable_if<fmt::is_range<RangeT>::value>::type> {
|
||||
|
||||
formatting_range<Char> formatting;
|
||||
|
||||
template <typename ParseContext>
|
||||
FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
|
||||
return formatting.parse(ctx);
|
||||
}
|
||||
|
||||
template <typename FormatContext>
|
||||
typename FormatContext::iterator format(
|
||||
const RangeT &values, FormatContext &ctx) {
|
||||
auto out = ctx.out();
|
||||
internal::copy(formatting.prefix, out);
|
||||
std::size_t i = 0;
|
||||
for (auto it = values.begin(), end = values.end(); it != end; ++it) {
|
||||
if (i > 0) {
|
||||
if (formatting.add_prepostfix_space) {
|
||||
*out++ = ' ';
|
||||
}
|
||||
internal::copy(formatting.delimiter, out);
|
||||
}
|
||||
format_to(out,
|
||||
internal::format_str_quoted(
|
||||
(formatting.add_delimiter_spaces && i > 0), *it),
|
||||
*it);
|
||||
if (++i > formatting.range_length_limit) {
|
||||
format_to(out, " ... <other elements>");
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (formatting.add_prepostfix_space) {
|
||||
*out++ = ' ';
|
||||
}
|
||||
internal::copy(formatting.postfix, out);
|
||||
return ctx.out();
|
||||
}
|
||||
};
|
||||
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_RANGES_H_
|
||||
|
||||
|
|
@ -0,0 +1,160 @@
|
|||
// Formatting library for C++ - time formatting
|
||||
//
|
||||
// Copyright (c) 2012 - present, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
#ifndef FMT_TIME_H_
|
||||
#define FMT_TIME_H_
|
||||
|
||||
#include "format.h"
|
||||
#include <ctime>
|
||||
#include <locale>
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
|
||||
// Prevents expansion of a preceding token as a function-style macro.
|
||||
// Usage: f FMT_NOMACRO()
|
||||
#define FMT_NOMACRO
|
||||
|
||||
namespace internal{
|
||||
inline null<> localtime_r FMT_NOMACRO(...) { return null<>(); }
|
||||
inline null<> localtime_s(...) { return null<>(); }
|
||||
inline null<> gmtime_r(...) { return null<>(); }
|
||||
inline null<> gmtime_s(...) { return null<>(); }
|
||||
} // namespace internal
|
||||
|
||||
// Thread-safe replacement for std::localtime
|
||||
inline std::tm localtime(std::time_t time) {
|
||||
struct dispatcher {
|
||||
std::time_t time_;
|
||||
std::tm tm_;
|
||||
|
||||
dispatcher(std::time_t t): time_(t) {}
|
||||
|
||||
bool run() {
|
||||
using namespace fmt::internal;
|
||||
return handle(localtime_r(&time_, &tm_));
|
||||
}
|
||||
|
||||
bool handle(std::tm *tm) { return tm != FMT_NULL; }
|
||||
|
||||
bool handle(internal::null<>) {
|
||||
using namespace fmt::internal;
|
||||
return fallback(localtime_s(&tm_, &time_));
|
||||
}
|
||||
|
||||
bool fallback(int res) { return res == 0; }
|
||||
|
||||
#if !FMT_MSC_VER
|
||||
bool fallback(internal::null<>) {
|
||||
using namespace fmt::internal;
|
||||
std::tm *tm = std::localtime(&time_);
|
||||
if (tm) tm_ = *tm;
|
||||
return tm != FMT_NULL;
|
||||
}
|
||||
#endif
|
||||
};
|
||||
dispatcher lt(time);
|
||||
// Too big time values may be unsupported.
|
||||
if (!lt.run())
|
||||
FMT_THROW(format_error("time_t value out of range"));
|
||||
return lt.tm_;
|
||||
}
|
||||
|
||||
// Thread-safe replacement for std::gmtime
|
||||
inline std::tm gmtime(std::time_t time) {
|
||||
struct dispatcher {
|
||||
std::time_t time_;
|
||||
std::tm tm_;
|
||||
|
||||
dispatcher(std::time_t t): time_(t) {}
|
||||
|
||||
bool run() {
|
||||
using namespace fmt::internal;
|
||||
return handle(gmtime_r(&time_, &tm_));
|
||||
}
|
||||
|
||||
bool handle(std::tm *tm) { return tm != FMT_NULL; }
|
||||
|
||||
bool handle(internal::null<>) {
|
||||
using namespace fmt::internal;
|
||||
return fallback(gmtime_s(&tm_, &time_));
|
||||
}
|
||||
|
||||
bool fallback(int res) { return res == 0; }
|
||||
|
||||
#if !FMT_MSC_VER
|
||||
bool fallback(internal::null<>) {
|
||||
std::tm *tm = std::gmtime(&time_);
|
||||
if (tm) tm_ = *tm;
|
||||
return tm != FMT_NULL;
|
||||
}
|
||||
#endif
|
||||
};
|
||||
dispatcher gt(time);
|
||||
// Too big time values may be unsupported.
|
||||
if (!gt.run())
|
||||
FMT_THROW(format_error("time_t value out of range"));
|
||||
return gt.tm_;
|
||||
}
|
||||
|
||||
namespace internal {
|
||||
inline std::size_t strftime(char *str, std::size_t count, const char *format,
|
||||
const std::tm *time) {
|
||||
return std::strftime(str, count, format, time);
|
||||
}
|
||||
|
||||
inline std::size_t strftime(wchar_t *str, std::size_t count,
|
||||
const wchar_t *format, const std::tm *time) {
|
||||
return std::wcsftime(str, count, format, time);
|
||||
}
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
struct formatter<std::tm, Char> {
|
||||
template <typename ParseContext>
|
||||
auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
|
||||
auto it = ctx.begin();
|
||||
if (it != ctx.end() && *it == ':')
|
||||
++it;
|
||||
auto end = it;
|
||||
while (end != ctx.end() && *end != '}')
|
||||
++end;
|
||||
tm_format.reserve(internal::to_unsigned(end - it + 1));
|
||||
tm_format.append(it, end);
|
||||
tm_format.push_back('\0');
|
||||
return end;
|
||||
}
|
||||
|
||||
template <typename FormatContext>
|
||||
auto format(const std::tm &tm, FormatContext &ctx) -> decltype(ctx.out()) {
|
||||
basic_memory_buffer<Char> buf;
|
||||
std::size_t start = buf.size();
|
||||
for (;;) {
|
||||
std::size_t size = buf.capacity() - start;
|
||||
std::size_t count =
|
||||
internal::strftime(&buf[start], size, &tm_format[0], &tm);
|
||||
if (count != 0) {
|
||||
buf.resize(start + count);
|
||||
break;
|
||||
}
|
||||
if (size >= tm_format.size() * 256) {
|
||||
// If the buffer is 256 times larger than the format string, assume
|
||||
// that `strftime` gives an empty result. There doesn't seem to be a
|
||||
// better way to distinguish the two cases:
|
||||
// https://github.com/fmtlib/fmt/issues/367
|
||||
break;
|
||||
}
|
||||
const std::size_t MIN_GROWTH = 10;
|
||||
buf.reserve(buf.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
|
||||
}
|
||||
return std::copy(buf.begin(), buf.end(), ctx.out());
|
||||
}
|
||||
|
||||
basic_memory_buffer<Char> tm_format;
|
||||
};
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_TIME_H_
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
// Formatting library for C++
|
||||
//
|
||||
// Copyright (c) 2012 - 2016, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
#include "fmt/format-inl.h"
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
template struct internal::basic_data<void>;
|
||||
template FMT_API internal::locale_ref::locale_ref(const std::locale &loc);
|
||||
template FMT_API std::locale internal::locale_ref::get<std::locale>() const;
|
||||
|
||||
// Explicit instantiations for char.
|
||||
|
||||
template FMT_API char internal::thousands_sep_impl(locale_ref);
|
||||
|
||||
template FMT_API void internal::basic_buffer<char>::append(const char *, const char *);
|
||||
|
||||
template FMT_API void internal::arg_map<format_context>::init(
|
||||
const basic_format_args<format_context> &args);
|
||||
|
||||
template FMT_API int internal::char_traits<char>::format_float(
|
||||
char *, std::size_t, const char *, int, double);
|
||||
|
||||
template FMT_API int internal::char_traits<char>::format_float(
|
||||
char *, std::size_t, const char *, int, long double);
|
||||
|
||||
template FMT_API std::string internal::vformat<char>(
|
||||
string_view, basic_format_args<format_context>);
|
||||
|
||||
template FMT_API format_context::iterator internal::vformat_to(
|
||||
internal::buffer &, string_view, basic_format_args<format_context>);
|
||||
|
||||
template FMT_API void internal::sprintf_format(
|
||||
double, internal::buffer &, core_format_specs);
|
||||
template FMT_API void internal::sprintf_format(
|
||||
long double, internal::buffer &, core_format_specs);
|
||||
|
||||
// Explicit instantiations for wchar_t.
|
||||
|
||||
template FMT_API wchar_t internal::thousands_sep_impl(locale_ref);
|
||||
|
||||
template FMT_API void internal::basic_buffer<wchar_t>::append(
|
||||
const wchar_t *, const wchar_t *);
|
||||
|
||||
template FMT_API void internal::arg_map<wformat_context>::init(
|
||||
const basic_format_args<wformat_context> &);
|
||||
|
||||
template FMT_API int internal::char_traits<wchar_t>::format_float(
|
||||
wchar_t *, std::size_t, const wchar_t *, int, double);
|
||||
|
||||
template FMT_API int internal::char_traits<wchar_t>::format_float(
|
||||
wchar_t *, std::size_t, const wchar_t *, int, long double);
|
||||
|
||||
template FMT_API std::wstring internal::vformat<wchar_t>(
|
||||
wstring_view, basic_format_args<wformat_context>);
|
||||
FMT_END_NAMESPACE
|
||||
|
|
@ -0,0 +1,244 @@
|
|||
// A C++ interface to POSIX functions.
|
||||
//
|
||||
// Copyright (c) 2012 - 2016, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to format.h.
|
||||
|
||||
// Disable bogus MSVC warnings.
|
||||
#if !defined(_CRT_SECURE_NO_WARNINGS) && defined(_MSC_VER)
|
||||
# define _CRT_SECURE_NO_WARNINGS
|
||||
#endif
|
||||
|
||||
#include "fmt/posix.h"
|
||||
|
||||
#include <limits.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#ifndef _WIN32
|
||||
# include <unistd.h>
|
||||
#else
|
||||
# ifndef WIN32_LEAN_AND_MEAN
|
||||
# define WIN32_LEAN_AND_MEAN
|
||||
# endif
|
||||
# include <windows.h>
|
||||
# include <io.h>
|
||||
|
||||
# define O_CREAT _O_CREAT
|
||||
# define O_TRUNC _O_TRUNC
|
||||
|
||||
# ifndef S_IRUSR
|
||||
# define S_IRUSR _S_IREAD
|
||||
# endif
|
||||
|
||||
# ifndef S_IWUSR
|
||||
# define S_IWUSR _S_IWRITE
|
||||
# endif
|
||||
|
||||
# ifdef __MINGW32__
|
||||
# define _SH_DENYNO 0x40
|
||||
# endif
|
||||
|
||||
#endif // _WIN32
|
||||
|
||||
#ifdef fileno
|
||||
# undef fileno
|
||||
#endif
|
||||
|
||||
namespace {
|
||||
#ifdef _WIN32
|
||||
// Return type of read and write functions.
|
||||
typedef int RWResult;
|
||||
|
||||
// On Windows the count argument to read and write is unsigned, so convert
|
||||
// it from size_t preventing integer overflow.
|
||||
inline unsigned convert_rwcount(std::size_t count) {
|
||||
return count <= UINT_MAX ? static_cast<unsigned>(count) : UINT_MAX;
|
||||
}
|
||||
#else
|
||||
// Return type of read and write functions.
|
||||
typedef ssize_t RWResult;
|
||||
|
||||
inline std::size_t convert_rwcount(std::size_t count) { return count; }
|
||||
#endif
|
||||
}
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
|
||||
buffered_file::~buffered_file() FMT_NOEXCEPT {
|
||||
if (file_ && FMT_SYSTEM(fclose(file_)) != 0)
|
||||
report_system_error(errno, "cannot close file");
|
||||
}
|
||||
|
||||
buffered_file::buffered_file(cstring_view filename, cstring_view mode) {
|
||||
FMT_RETRY_VAL(file_,
|
||||
FMT_SYSTEM(fopen(filename.c_str(), mode.c_str())), FMT_NULL);
|
||||
if (!file_)
|
||||
FMT_THROW(system_error(errno, "cannot open file {}", filename.c_str()));
|
||||
}
|
||||
|
||||
void buffered_file::close() {
|
||||
if (!file_)
|
||||
return;
|
||||
int result = FMT_SYSTEM(fclose(file_));
|
||||
file_ = FMT_NULL;
|
||||
if (result != 0)
|
||||
FMT_THROW(system_error(errno, "cannot close file"));
|
||||
}
|
||||
|
||||
// A macro used to prevent expansion of fileno on broken versions of MinGW.
|
||||
#define FMT_ARGS
|
||||
|
||||
int buffered_file::fileno() const {
|
||||
int fd = FMT_POSIX_CALL(fileno FMT_ARGS(file_));
|
||||
if (fd == -1)
|
||||
FMT_THROW(system_error(errno, "cannot get file descriptor"));
|
||||
return fd;
|
||||
}
|
||||
|
||||
file::file(cstring_view path, int oflag) {
|
||||
int mode = S_IRUSR | S_IWUSR;
|
||||
#if defined(_WIN32) && !defined(__MINGW32__)
|
||||
fd_ = -1;
|
||||
FMT_POSIX_CALL(sopen_s(&fd_, path.c_str(), oflag, _SH_DENYNO, mode));
|
||||
#else
|
||||
FMT_RETRY(fd_, FMT_POSIX_CALL(open(path.c_str(), oflag, mode)));
|
||||
#endif
|
||||
if (fd_ == -1)
|
||||
FMT_THROW(system_error(errno, "cannot open file {}", path.c_str()));
|
||||
}
|
||||
|
||||
file::~file() FMT_NOEXCEPT {
|
||||
// Don't retry close in case of EINTR!
|
||||
// See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html
|
||||
if (fd_ != -1 && FMT_POSIX_CALL(close(fd_)) != 0)
|
||||
report_system_error(errno, "cannot close file");
|
||||
}
|
||||
|
||||
void file::close() {
|
||||
if (fd_ == -1)
|
||||
return;
|
||||
// Don't retry close in case of EINTR!
|
||||
// See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html
|
||||
int result = FMT_POSIX_CALL(close(fd_));
|
||||
fd_ = -1;
|
||||
if (result != 0)
|
||||
FMT_THROW(system_error(errno, "cannot close file"));
|
||||
}
|
||||
|
||||
long long file::size() const {
|
||||
#ifdef _WIN32
|
||||
// Use GetFileSize instead of GetFileSizeEx for the case when _WIN32_WINNT
|
||||
// is less than 0x0500 as is the case with some default MinGW builds.
|
||||
// Both functions support large file sizes.
|
||||
DWORD size_upper = 0;
|
||||
HANDLE handle = reinterpret_cast<HANDLE>(_get_osfhandle(fd_));
|
||||
DWORD size_lower = FMT_SYSTEM(GetFileSize(handle, &size_upper));
|
||||
if (size_lower == INVALID_FILE_SIZE) {
|
||||
DWORD error = GetLastError();
|
||||
if (error != NO_ERROR)
|
||||
FMT_THROW(windows_error(GetLastError(), "cannot get file size"));
|
||||
}
|
||||
unsigned long long long_size = size_upper;
|
||||
return (long_size << sizeof(DWORD) * CHAR_BIT) | size_lower;
|
||||
#else
|
||||
typedef struct stat Stat;
|
||||
Stat file_stat = Stat();
|
||||
if (FMT_POSIX_CALL(fstat(fd_, &file_stat)) == -1)
|
||||
FMT_THROW(system_error(errno, "cannot get file attributes"));
|
||||
static_assert(sizeof(long long) >= sizeof(file_stat.st_size),
|
||||
"return type of file::size is not large enough");
|
||||
return file_stat.st_size;
|
||||
#endif
|
||||
}
|
||||
|
||||
std::size_t file::read(void *buffer, std::size_t count) {
|
||||
RWResult result = 0;
|
||||
FMT_RETRY(result, FMT_POSIX_CALL(read(fd_, buffer, convert_rwcount(count))));
|
||||
if (result < 0)
|
||||
FMT_THROW(system_error(errno, "cannot read from file"));
|
||||
return internal::to_unsigned(result);
|
||||
}
|
||||
|
||||
std::size_t file::write(const void *buffer, std::size_t count) {
|
||||
RWResult result = 0;
|
||||
FMT_RETRY(result, FMT_POSIX_CALL(write(fd_, buffer, convert_rwcount(count))));
|
||||
if (result < 0)
|
||||
FMT_THROW(system_error(errno, "cannot write to file"));
|
||||
return internal::to_unsigned(result);
|
||||
}
|
||||
|
||||
file file::dup(int fd) {
|
||||
// Don't retry as dup doesn't return EINTR.
|
||||
// http://pubs.opengroup.org/onlinepubs/009695399/functions/dup.html
|
||||
int new_fd = FMT_POSIX_CALL(dup(fd));
|
||||
if (new_fd == -1)
|
||||
FMT_THROW(system_error(errno, "cannot duplicate file descriptor {}", fd));
|
||||
return file(new_fd);
|
||||
}
|
||||
|
||||
void file::dup2(int fd) {
|
||||
int result = 0;
|
||||
FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd)));
|
||||
if (result == -1) {
|
||||
FMT_THROW(system_error(errno,
|
||||
"cannot duplicate file descriptor {} to {}", fd_, fd));
|
||||
}
|
||||
}
|
||||
|
||||
void file::dup2(int fd, error_code &ec) FMT_NOEXCEPT {
|
||||
int result = 0;
|
||||
FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd)));
|
||||
if (result == -1)
|
||||
ec = error_code(errno);
|
||||
}
|
||||
|
||||
void file::pipe(file &read_end, file &write_end) {
|
||||
// Close the descriptors first to make sure that assignments don't throw
|
||||
// and there are no leaks.
|
||||
read_end.close();
|
||||
write_end.close();
|
||||
int fds[2] = {};
|
||||
#ifdef _WIN32
|
||||
// Make the default pipe capacity same as on Linux 2.6.11+.
|
||||
enum { DEFAULT_CAPACITY = 65536 };
|
||||
int result = FMT_POSIX_CALL(pipe(fds, DEFAULT_CAPACITY, _O_BINARY));
|
||||
#else
|
||||
// Don't retry as the pipe function doesn't return EINTR.
|
||||
// http://pubs.opengroup.org/onlinepubs/009696799/functions/pipe.html
|
||||
int result = FMT_POSIX_CALL(pipe(fds));
|
||||
#endif
|
||||
if (result != 0)
|
||||
FMT_THROW(system_error(errno, "cannot create pipe"));
|
||||
// The following assignments don't throw because read_fd and write_fd
|
||||
// are closed.
|
||||
read_end = file(fds[0]);
|
||||
write_end = file(fds[1]);
|
||||
}
|
||||
|
||||
buffered_file file::fdopen(const char *mode) {
|
||||
// Don't retry as fdopen doesn't return EINTR.
|
||||
FILE *f = FMT_POSIX_CALL(fdopen(fd_, mode));
|
||||
if (!f)
|
||||
FMT_THROW(system_error(errno,
|
||||
"cannot associate stream with file descriptor"));
|
||||
buffered_file bf(f);
|
||||
fd_ = -1;
|
||||
return bf;
|
||||
}
|
||||
|
||||
long getpagesize() {
|
||||
#ifdef _WIN32
|
||||
SYSTEM_INFO si;
|
||||
GetSystemInfo(&si);
|
||||
return si.dwPageSize;
|
||||
#else
|
||||
long size = FMT_POSIX_CALL(sysconf(_SC_PAGESIZE));
|
||||
if (size < 0)
|
||||
FMT_THROW(system_error(errno, "cannot get memory page size"));
|
||||
return size;
|
||||
#endif
|
||||
}
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
Loading…
Reference in New Issue