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#include <chrono>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <wctype.h>
#include "util.hxx"
namespace replxx {
int mk_wcwidth( char32_t );
/**
* Calculate a new screen position given a starting position, screen width and
* character count
* @param x - initial x position (zero-based)
* @param y - initial y position (zero-based)
* @param screenColumns - screen column count
* @param charCount - character positions to advance
* @param xOut - returned x position (zero-based)
* @param yOut - returned y position (zero-based)
*/
void calculate_screen_position(
int x, int y, int screenColumns,
int charCount, int& xOut, int& yOut
) {
xOut = x;
yOut = y;
int charsRemaining = charCount;
while ( charsRemaining > 0 ) {
int charsThisRow = ( ( x + charsRemaining ) < screenColumns )
? charsRemaining
: screenColumns - x;
xOut = x + charsThisRow;
yOut = y;
charsRemaining -= charsThisRow;
x = 0;
++ y;
}
if ( xOut == screenColumns ) { // we have to special-case line wrap
xOut = 0;
++ yOut;
}
}
/**
* Calculate a column width using mk_wcswidth()
* @param buf32 - text to calculate
* @param len - length of text to calculate
*/
int calculate_displayed_length( char32_t const* buf32_, int size_ ) {
int len( 0 );
for ( int i( 0 ); i < size_; ++ i ) {
char32_t c( buf32_[i] );
if ( c == '\033' ) {
int escStart( i );
++ i;
if ( ( i < size_ ) && ( buf32_[i] != '[' ) ) {
i = escStart;
++ len;
continue;
}
++ i;
for ( ; i < size_; ++ i ) {
c = buf32_[i];
if ( ( c != ';' ) && ( ( c < '0' ) || ( c > '9' ) ) ) {
break;
}
}
if ( ( i < size_ ) && ( buf32_[i] == 'm' ) ) {
continue;
}
i = escStart;
len += 2;
} else if ( is_control_code( c ) ) {
len += 2;
} else {
int wcw( mk_wcwidth( c ) );
if ( wcw < 0 ) {
len = -1;
break;
}
len += wcw;
}
}
return ( len );
}
char const* ansi_color( Replxx::Color color_ ) {
static char const reset[] = "\033[0m";
static char const black[] = "\033[0;22;30m";
static char const red[] = "\033[0;22;31m";
static char const green[] = "\033[0;22;32m";
static char const brown[] = "\033[0;22;33m";
static char const blue[] = "\033[0;22;34m";
static char const magenta[] = "\033[0;22;35m";
static char const cyan[] = "\033[0;22;36m";
static char const lightgray[] = "\033[0;22;37m";
#ifdef _WIN32
static bool const has256colorDefault( true );
#else
static bool const has256colorDefault( false );
#endif
static char const* TERM( getenv( "TERM" ) );
static bool const has256color( TERM ? ( strstr( TERM, "256" ) != nullptr ) : has256colorDefault );
static char const* gray = has256color ? "\033[0;1;90m" : "\033[0;1;30m";
static char const* brightred = has256color ? "\033[0;1;91m" : "\033[0;1;31m";
static char const* brightgreen = has256color ? "\033[0;1;92m" : "\033[0;1;32m";
static char const* yellow = has256color ? "\033[0;1;93m" : "\033[0;1;33m";
static char const* brightblue = has256color ? "\033[0;1;94m" : "\033[0;1;34m";
static char const* brightmagenta = has256color ? "\033[0;1;95m" : "\033[0;1;35m";
static char const* brightcyan = has256color ? "\033[0;1;96m" : "\033[0;1;36m";
static char const* white = has256color ? "\033[0;1;97m" : "\033[0;1;37m";
static char const error[] = "\033[101;1;33m";
char const* code( reset );
switch ( color_ ) {
case Replxx::Color::BLACK: code = black; break;
case Replxx::Color::RED: code = red; break;
case Replxx::Color::GREEN: code = green; break;
case Replxx::Color::BROWN: code = brown; break;
case Replxx::Color::BLUE: code = blue; break;
case Replxx::Color::MAGENTA: code = magenta; break;
case Replxx::Color::CYAN: code = cyan; break;
case Replxx::Color::LIGHTGRAY: code = lightgray; break;
case Replxx::Color::GRAY: code = gray; break;
case Replxx::Color::BRIGHTRED: code = brightred; break;
case Replxx::Color::BRIGHTGREEN: code = brightgreen; break;
case Replxx::Color::YELLOW: code = yellow; break;
case Replxx::Color::BRIGHTBLUE: code = brightblue; break;
case Replxx::Color::BRIGHTMAGENTA: code = brightmagenta; break;
case Replxx::Color::BRIGHTCYAN: code = brightcyan; break;
case Replxx::Color::WHITE: code = white; break;
case Replxx::Color::ERROR: code = error; break;
case Replxx::Color::DEFAULT: code = reset; break;
}
return ( code );
}
std::string now_ms_str( void ) {
std::chrono::milliseconds ms( std::chrono::duration_cast<std::chrono::milliseconds>( std::chrono::system_clock::now().time_since_epoch() ) );
time_t t( ms.count() / 1000 );
tm broken;
#ifdef _WIN32
#define localtime_r( t, b ) localtime_s( ( b ), ( t ) )
#endif
localtime_r( &t, &broken );
#undef localtime_r
static int const BUFF_SIZE( 32 );
char str[BUFF_SIZE];
strftime( str, BUFF_SIZE, "%Y-%m-%d %H:%M:%S.", &broken );
snprintf( str + sizeof ( "YYYY-mm-dd HH:MM:SS" ), 5, "%03d", static_cast<int>( ms.count() % 1000 ) );
return ( str );
}
}
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