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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/utility.hpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/src/utility.hpp | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/utility.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/utility.hpp deleted file mode 100644 index ff8387a4190..00000000000 --- a/Build/source/texk/dvisvgm/dvisvgm-src/src/utility.hpp +++ /dev/null @@ -1,150 +0,0 @@ -/************************************************************************* -** utility.hpp ** -** ** -** This file is part of dvisvgm -- a fast DVI to SVG converter ** -** Copyright (C) 2005-2021 Martin Gieseking <martin.gieseking@uos.de> ** -** ** -** This program is free software; you can redistribute it and/or ** -** modify it under the terms of the GNU General Public License as ** -** published by the Free Software Foundation; either version 3 of ** -** the License, or (at your option) any later version. ** -** ** -** This program is distributed in the hope that it will be useful, but ** -** WITHOUT ANY WARRANTY; without even the implied warranty of ** -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** -** GNU General Public License for more details. ** -** ** -** You should have received a copy of the GNU General Public License ** -** along with this program; if not, see <http://www.gnu.org/licenses/>. ** -*************************************************************************/ - -#ifndef UTILITY_HPP -#define UTILITY_HPP - -#include <iomanip> -#include <memory> -#include <sstream> -#include <string> -#include <vector> - -namespace math { - -constexpr const double PI = 3.141592653589793238462643383279502884; -constexpr const double HALF_PI = 1.570796326794896619231321691639751442; -constexpr const double TWO_PI = 6.283185307179586476925286766559005768; -constexpr const double SQRT2 = 1.414213562373095048801688724209698079; - -inline double deg2rad (double deg) {return PI*deg/180.0;} -inline double rad2deg (double rad) {return 180.0*rad/PI;} -double normalize_angle (double angle, double mod); -double normalize_0_2pi (double rad); -std::vector<double> svd (const double (&m)[2][2]); - -/** Signum function (returns x/abs(x) if x != 0, and 0 otherwise). */ -template <typename T> -inline int sgn (T x) {return (x > T(0)) - (x < T(0));} - -} // namespace math - -namespace util { - -template <typename T> -std::string tohex (T val) { - std::ostringstream oss; - oss << std::hex << val; - return oss.str(); -} - -std::string trim (const std::string &str, const char *ws=" \t\n\r\f"); -std::string normalize_space (std::string str, const char *ws=" \t\n\r\f"); -std::string tolower (const std::string &str); -std::string replace (std::string str, const std::string &find, const std::string &repl); -std::string to_string (double val); -std::vector<std::string> split (const std::string &str, const std::string &sep); -int ilog10 (int n); - -std::string read_file_contents (const std::string &fname); -void write_file_contents (const std::string &fname, std::string::iterator start, std::string::iterator end); - - -/** Returns a sequence of bytes of a given integral value. - * @param[in] val get bytes of this value - * @param[in] n number of bytes to extract (from LSB to MSB), all if n == 0 - * @return vector of bytes in big-endian order */ -template <typename T> -std::vector<uint8_t> bytes (T val, int n=0) { - if (n <= 0) - n = sizeof(T); - std::vector<uint8_t> ret(n); - for (int i=0; i < n; i++) { - ret[n-i-1] = val & 0xff; - val >>= 8; - } - return ret; -} - - -/** Encodes the bytes in the half-open range [first,last) to Base64 and writes - * the result to the range starting at 'dest'. - * @param[in] first initial position of the range to be encoded - * @param[in] last final position of the range to be encoded - * @param[in] dest first position of the destination range - * @param[in] wrap if > 0, add a newline after the given number of characters written */ -template <typename InputIterator, typename OutputIterator> -void base64_copy (InputIterator first, InputIterator last, OutputIterator dest, int wrap=0) { - static const char *base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - int count=0; - while (first != last) { - int padding = 0; - unsigned char c0 = *first++, c1=0, c2=0; - if (first == last) - padding = 2; - else { - c1 = *first++; - if (first == last) - padding = 1; - else - c2 = *first++; - } - uint32_t n = (c0 << 16) | (c1 << 8) | c2; - for (int i=0; i <= 3-padding; i++) { - if (wrap > 0 && ++count > wrap) { - count = 1; - *dest++ = '\n'; - } - *dest++ = base64_chars[(n >> 18) & 0x3f]; - n <<= 6; - } - while (padding--) { - if (wrap > 0 && ++count > wrap) { - count = 1; - *dest++ = '\n'; - } - *dest++ = '='; - } - } -} - - -inline void base64_copy (std::istream &is, std::ostream &os, int wrap=0) { - base64_copy(std::istreambuf_iterator<char>(is), std::istreambuf_iterator<char>(), std::ostreambuf_iterator<char>(os), wrap); -} - - -/** Simple implementation mimicking std::make_unique introduced in C++14. - * Constructs an object of class T on the heap and returns a unique_ptr<T> to it. - * @param[in] args arguments forwarded to an constructor of T */ -template<typename T, typename... Args> -std::unique_ptr<T> make_unique (Args&&... args) { - return std::unique_ptr<T>(new T(std::forward<Args>(args)...)); -} - - -template<typename T, typename U> -std::unique_ptr<T> static_unique_ptr_cast (std::unique_ptr<U> &&old){ - return std::unique_ptr<T>{static_cast<T*>(old.release())}; -} - -} // namespace util - -#endif |