397 lines
12 KiB
C++
397 lines
12 KiB
C++
/*
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https://github.com/peterix/dfhack
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Copyright (c) 2009-2012 Petr Mrázek (peterix@gmail.com)
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must
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not claim that you wrote the original software. If you use this
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software in a product, an acknowledgment in the product documentation
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would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#include "Internal.h"
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#include "Export.h"
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#include "MiscUtils.h"
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#ifndef LINUX_BUILD
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// We don't want min and max macros
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#define NOMINMAX
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#include <Windows.h>
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#else
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#include <sys/time.h>
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#include <ctime>
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#endif
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#include <ctype.h>
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#include <stdarg.h>
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#include <string.h>
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#include <cstdlib>
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#include <sstream>
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#include <map>
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#include <array>
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std::string stl_sprintf(const char *fmt, ...) {
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va_list lst;
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va_start(lst, fmt);
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std::string rv = stl_vsprintf(fmt, lst);
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va_end(lst);
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return rv;
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}
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std::string stl_vsprintf(const char *fmt, va_list args) {
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/* Allow small (about single line) strings to be printed into stack memory
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* with a call to vsnprintf.
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*/
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std::array<char,128> buf;
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va_list args2;
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va_copy(args2, args);
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int rsz = vsnprintf(&buf[0], buf.size(), fmt, args2);
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va_end(args2);
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if (rsz < 0)
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return std::string(); /* Error occurred */
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if (static_cast<unsigned>(rsz) < buf.size())
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return std::string(&buf[0], rsz); /* Whole string fits to a single line buffer */
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std::string rv;
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// Allocate enough memory for the output and null termination
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rv.resize(rsz);
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rsz = vsnprintf(&rv[0], rv.size()+1, fmt, args);
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if (rsz < static_cast<int>(rv.size()))
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rv.resize(std::max(rsz,0));
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return rv;
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}
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bool split_string(std::vector<std::string> *out,
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const std::string &str, const std::string &separator, bool squash_empty)
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{
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out->clear();
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size_t start = 0, pos;
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if (!separator.empty())
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{
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while ((pos = str.find(separator,start)) != std::string::npos)
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{
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if (pos > start || !squash_empty)
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out->push_back(str.substr(start, pos-start));
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start = pos + separator.size();
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}
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}
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if (start < str.size() || !squash_empty)
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out->push_back(str.substr(start));
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return out->size() > 1;
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}
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std::string join_strings(const std::string &separator, const std::vector<std::string> &items)
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{
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std::stringstream ss;
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for (size_t i = 0; i < items.size(); i++)
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{
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if (i)
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ss << separator;
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ss << items[i];
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}
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return ss.str();
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}
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std::string toUpper(const std::string &str)
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{
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std::string rv(str.size(),' ');
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for (unsigned i = 0; i < str.size(); ++i)
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rv[i] = toupper(str[i]);
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return rv;
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}
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std::string toLower(const std::string &str)
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{
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std::string rv(str.size(),' ');
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for (unsigned i = 0; i < str.size(); ++i)
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rv[i] = tolower(str[i]);
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return rv;
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}
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bool word_wrap(std::vector<std::string> *out, const std::string &str, size_t line_length)
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{
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out->clear();
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std::istringstream input(str);
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std::string out_line;
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std::string word;
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if (input >> word)
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{
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out_line += word;
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// size_t remaining = line_length - std::min(line_length, word.length());
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while (input >> word)
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{
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if (out_line.length() + word.length() + 1 <= line_length)
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{
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out_line += ' ';
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out_line += word;
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}
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else
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{
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out->push_back(out_line);
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out_line = word;
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}
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}
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if (out_line.length())
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out->push_back(out_line);
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}
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return true;
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}
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bool prefix_matches(const std::string &prefix, const std::string &key, std::string *tail)
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{
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size_t ksize = key.size();
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size_t psize = prefix.size();
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if (ksize < psize || memcmp(prefix.data(), key.data(), psize) != 0)
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return false;
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if (tail)
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tail->clear();
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if (ksize == psize)
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return true;
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if (psize == 0 || prefix[psize-1] == '/')
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{
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if (tail) *tail = key.substr(psize);
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return true;
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}
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if (key[psize] == '/')
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{
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if (tail) *tail = key.substr(psize+1);
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return true;
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}
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return false;
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}
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int random_int(int max)
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{
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return int(int64_t(rand())*max/(int64_t(RAND_MAX)+1));
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}
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#ifdef LINUX_BUILD // Linux
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uint64_t GetTimeMs64()
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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uint64_t ret = tv.tv_usec;
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// Convert from micro seconds (10^-6) to milliseconds (10^-3)
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ret /= 1000;
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// Adds the seconds (10^0) after converting them to milliseconds (10^-3)
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ret += (tv.tv_sec * 1000);
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return ret;
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}
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#else // Windows
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uint64_t GetTimeMs64()
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{
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FILETIME ft;
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LARGE_INTEGER li;
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// Get the amount of 100 nano seconds intervals elapsed since January 1, 1601 (UTC)
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// and copy it to a LARGE_INTEGER structure.
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GetSystemTimeAsFileTime(&ft);
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li.LowPart = ft.dwLowDateTime;
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li.HighPart = ft.dwHighDateTime;
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uint64_t ret = li.QuadPart;
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// Convert from file time to UNIX epoch time.
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ret -= 116444736000000000LL;
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// From 100 nano seconds (10^-7) to 1 millisecond (10^-3) intervals
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ret /= 10000;
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return ret;
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}
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#endif
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/* Character decoding */
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// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
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#define UTF8_ACCEPT 0
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#define UTF8_REJECT 12
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static const uint8_t utf8d[] = {
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// The first part of the table maps bytes to character classes that
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// to reduce the size of the transition table and create bitmasks.
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
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7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
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8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
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10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
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// The second part is a transition table that maps a combination
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// of a state of the automaton and a character class to a state.
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0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
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12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
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12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
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12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
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12,36,12,12,12,12,12,12,12,12,12,12,
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};
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static inline uint32_t
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decode(uint32_t* state, uint32_t* codep, uint8_t byte) {
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uint32_t type = utf8d[byte];
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*codep = (*state != UTF8_ACCEPT) ?
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(byte & 0x3fu) | (*codep << 6) :
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(0xff >> type) & (byte);
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*state = utf8d[256 + *state + type];
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return *state;
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}
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/* Character encoding */
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static inline int encode(uint8_t *out, uint16_t c) {
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if (c <= 0x7F)
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{
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out[0] = c;
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return 1;
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}
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else if (c <= 0x7FF)
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{
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out[0] = (0xC0 | (c >> 6));
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out[1] = (0x80 | (c & 0x3F));
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return 2;
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}
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else /*if (c <= 0xFFFF)*/
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{
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out[0] = (0xE0 | (c >> 12));
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out[1] = (0x80 | ((c >> 6) & 0x3F));
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out[2] = (0x80 | (c & 0x3F));
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return 3;
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}
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}
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/* CP437 */
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static uint16_t character_table[256] = {
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0, 0x263A, 0x263B, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022, //
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0x25D8, 0x25CB, 0x25D9, 0x2642, 0x2640, 0x266A, 0x266B, 0x263C,
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0x25BA, 0x25C4, 0x2195, 0x203C, 0xB6, 0xA7, 0x25AC, 0x21A8, //
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0x2191, 0x2193, 0x2192, 0x2190, 0x221F, 0x2194, 0x25B2, 0x25BC,
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, //
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0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, //
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0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
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0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, //
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0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
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0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, //
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0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
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0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, //
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0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
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0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, //
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0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x2302,
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0xC7, 0xFC, 0xE9, 0xE2, 0xE4, 0xE0, 0xE5, 0xE7, //
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0xEA, 0xEB, 0xE8, 0xEF, 0xEE, 0xEC, 0xC4, 0xC5,
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0xC9, 0xE6, 0xC6, 0xF4, 0xF6, 0xF2, 0xFB, 0xF9, //
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0xFF, 0xD6, 0xDC, 0xA2, 0xA3, 0xA5, 0x20A7, 0x192,
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0xE1, 0xED, 0xF3, 0xFA, 0xF1, 0xD1, 0xAA, 0xBA, //
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0xBF, 0x2310, 0xAC, 0xBD, 0xBC, 0xA1, 0xAB, 0xBB,
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0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, //
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0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
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0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, //
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0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
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0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, //
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0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
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0x3B1, 0xDF, 0x393, 0x3C0, 0x3A3, 0x3C3, 0xB5, 0x3C4, //
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0x3A6, 0x398, 0x3A9, 0x3B4, 0x221E, 0x3C6, 0x3B5, 0x2229,
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0x2261, 0xB1, 0x2265, 0x2264, 0x2320, 0x2321, 0xF7, 0x2248, //
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0xB0, 0x2219, 0xB7, 0x221A, 0x207F, 0xB2, 0x25A0, 0xA0
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};
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std::string DF2UTF(const std::string &in)
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{
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std::string out;
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out.reserve(in.size());
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uint8_t buf[4];
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for (size_t i = 0; i < in.size(); i++)
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{
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int cnt = encode(buf, character_table[(uint8_t)in[i]]);
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out.append(&buf[0], &buf[cnt]);
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}
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return out;
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}
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std::string UTF2DF(const std::string &in)
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{
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// Unicode to normal lookup table
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static std::map<uint32_t, char> ctable;
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if (ctable.empty())
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{
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for (uint16_t i = 0; i < 256; i++)
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if (character_table[i] != i)
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ctable[character_table[i]] = char(i);
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}
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// Actual conversion loop
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size_t size = in.size();
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std::string out(size, char(0));
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uint32_t codepoint = 0;
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uint32_t state = UTF8_ACCEPT, prev = UTF8_ACCEPT;
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uint32_t pos = 0;
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for (unsigned i = 0; i < size; prev = state, i++) {
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switch (decode(&state, &codepoint, uint8_t(in[i]))) {
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case UTF8_ACCEPT:
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if (codepoint < 256 && character_table[codepoint] == codepoint) {
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out[pos++] = char(codepoint);
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} else {
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char v = ctable[codepoint];
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out[pos++] = v ? v : '?';
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}
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break;
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case UTF8_REJECT:
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out[pos++] = '?';
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if (prev != UTF8_ACCEPT) --i;
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state = UTF8_ACCEPT;
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break;
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}
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}
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if (pos != size)
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out.resize(pos);
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return out;
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}
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DFHACK_EXPORT std::string DF2CONSOLE(const std::string &in)
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{
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bool is_utf = false;
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#ifdef LINUX_BUILD
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std::string locale = "";
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if (getenv("LANG"))
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locale += getenv("LANG");
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if (getenv("LC_CTYPE"))
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locale += getenv("LC_CTYPE");
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locale = toUpper(locale);
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is_utf = (locale.find("UTF-8") != std::string::npos) ||
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(locale.find("UTF8") != std::string::npos);
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#endif
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return is_utf ? DF2UTF(in) : in;
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}
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