Adding upstream version 3.8.1.upstream/3.8.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 158 insertions, 0 deletions

diff --git a/contrib/replxx/src/util.cxx b/contrib/replxx/src/util.cxx
new file mode 100644
index 0000000..719d707
--- /dev/null
+++ b/contrib/replxx/src/util.cxx
@@ -0,0 +1,158 @@
+#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 );
+}
+
+}
+