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#include <chrono>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <wctype.h>
#include "util.hxx"
#include "terminal.hxx"
#undef min
namespace replxx {
int mk_wcwidth( char32_t );
int virtual_render( char32_t const* display_, int size_, int& x_, int& y_, int screenColumns_, int promptLen_, char32_t* rendered_, int* renderedSize_ ) {
char32_t* out( rendered_ );
int visibleCount( 0 );
auto render = [&rendered_, &renderedSize_, &out, &visibleCount]( char32_t c_, bool visible_, bool renderAttributes_ = true ) {
if ( rendered_ && renderedSize_ && renderAttributes_ ) {
*out = c_;
++ out;
if ( visible_ ) {
++ visibleCount;
}
}
};
bool wrapped( false );
auto advance_cursor = [&x_, &y_, &screenColumns_, &wrapped]( int by_ = 1 ) {
wrapped = false;
x_ += by_;
if ( x_ >= screenColumns_ ) {
x_ = 0;
++ y_;
wrapped = true;
}
};
bool const renderAttributes( !!tty::out );
int pos( 0 );
while ( pos < size_ ) {
char32_t c( display_[pos] );
if ( ( c == '\n' ) || ( c == '\r' ) ) {
render( c, true );
if ( ( c == '\n' ) && ! wrapped ) {
++ y_;
}
x_ = promptLen_;
++ pos;
continue;
}
if ( c == '\b' ) {
render( c, true );
-- x_;
if ( x_ < 0 ) {
x_ = screenColumns_ - 1;
-- y_;
}
++ pos;
continue;
}
if ( c == '\033' ) {
render( c, false, renderAttributes );
++ pos;
if ( pos >= size_ ) {
advance_cursor( 2 );
continue;
}
c = display_[pos];
if ( c != '[' ) {
advance_cursor( 2 );
continue;
}
render( c, false, renderAttributes );
++ pos;
if ( pos >= size_ ) {
advance_cursor( 3 );
continue;
}
int codeLen( 0 );
while ( pos < size_ ) {
c = display_[pos];
if ( ( c != ';' ) && ( ( c < '0' ) || ( c > '9' ) ) ) {
break;
}
render( c, false, renderAttributes );
++ codeLen;
++ pos;
}
if ( pos >= size_ ) {
continue;
}
c = display_[pos];
if ( c != 'm' ) {
advance_cursor( 3 + codeLen );
continue;
}
render( c, false, renderAttributes );
++ pos;
continue;
}
if ( is_control_code( c ) ) {
render( c, true );
advance_cursor( 2 );
++ pos;
continue;
}
int wcw( mk_wcwidth( c ) );
if ( wcw < 0 ) {
break;
}
render( c, true );
advance_cursor( wcw );
++ pos;
}
if ( rendered_ && renderedSize_ ) {
*renderedSize_ = out - rendered_;
}
return ( visibleCount );
}
char const* ansi_color( Replxx::Color color_ ) {
int unsigned code( static_cast<int unsigned>( color_ ) );
int unsigned fg( code & 0xFFu );
int unsigned bg( ( code >> 8 ) & 0xFFu );
char const* bold( ( code & color::BOLD ) != 0 ? ";1" : "" );
char const* underline = ( ( code & color::UNDERLINE ) != 0 ? ";4" : "" );
static int const MAX_COLOR_CODE_SIZE( 32 );
static char colorBuffer[MAX_COLOR_CODE_SIZE];
int pos( 0 );
if ( ( code & static_cast<int unsigned>( Replxx::Color::DEFAULT ) ) != 0 ) {
pos = snprintf( colorBuffer, MAX_COLOR_CODE_SIZE, "\033[0%s%sm", underline, bold );
} else if ( fg <= static_cast<int unsigned>( Replxx::Color::LIGHTGRAY ) ) {
pos = snprintf( colorBuffer, MAX_COLOR_CODE_SIZE, "\033[0;22;3%d%s%sm", fg, underline, bold );
} else if ( fg <= static_cast<int unsigned>( Replxx::Color::WHITE ) ) {
#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* ansiEscapeCodeTemplate = has256color ? "\033[0;9%d%s%sm" : "\033[0;1;3%d%s%sm";
pos = snprintf( colorBuffer, MAX_COLOR_CODE_SIZE, ansiEscapeCodeTemplate, fg - static_cast<int>( Replxx::Color::GRAY ), underline, bold );
} else {
pos = snprintf( colorBuffer, MAX_COLOR_CODE_SIZE, "\033[0;38;5;%d%s%sm", fg, underline, bold );
}
if ( ( code & color::BACKGROUND_COLOR_SET ) == 0 ) {
return colorBuffer;
}
if ( bg <= static_cast<int unsigned>( Replxx::Color::WHITE ) ) {
if ( bg <= static_cast<int unsigned>( Replxx::Color::LIGHTGRAY ) ) {
snprintf( colorBuffer + pos, MAX_COLOR_CODE_SIZE - pos, "\033[4%dm", bg );
} else {
snprintf( colorBuffer + pos, MAX_COLOR_CODE_SIZE - pos, "\033[10%dm", bg - static_cast<int>( Replxx::Color::GRAY ) );
}
} else {
snprintf( colorBuffer + pos, MAX_COLOR_CODE_SIZE - pos, "\033[48;5;%dm", bg );
}
return colorBuffer;
}
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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