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Use \e instead of \u001B or \x1B (#99659)
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@stephentoub
stephentoub authored Apr 5, 2024
1 parent 997f09c commit 7def0b7
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Showing 11 changed files with 111 additions and 111 deletions.
56 changes: 28 additions & 28 deletions src/libraries/Microsoft.Extensions.Logging.Console/src/AnsiParser.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ public void Parse(string message)
ConsoleColor? foreground = null;
ConsoleColor? background = null;
var span = message.AsSpan();
const char EscapeChar = '\x1B';
const char EscapeChar = '\e';
ConsoleColor? color = null;
bool isBright = false;
for (int i = 0; i < span.Length; i++)
Expand All @@ -59,7 +59,7 @@ public void Parse(string message)
{
if (span[i + 3] == 'm')
{
// Example: \x1B[1m
// Example: \e[1m
if (IsDigit(span[i + 2]))
{
escapeCode = (int)(span[i + 2] - '0');
Expand All @@ -77,7 +77,7 @@ public void Parse(string message)
}
else if (span.Length >= i + 5 && span[i + 4] == 'm')
{
// Example: \x1B[40m
// Example: \e[40m
if (IsDigit(span[i + 2]) && IsDigit(span[i + 3]))
{
escapeCode = (int)(span[i + 2] - '0') * 10 + (int)(span[i + 3] - '0');
Expand Down Expand Up @@ -127,28 +127,28 @@ public void Parse(string message)
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static bool IsDigit(char c) => (uint)(c - '0') <= ('9' - '0');

internal const string DefaultForegroundColor = "\x1B[39m\x1B[22m"; // reset to default foreground color
internal const string DefaultBackgroundColor = "\x1B[49m"; // reset to the background color
internal const string DefaultForegroundColor = "\e[39m\e[22m"; // reset to default foreground color
internal const string DefaultBackgroundColor = "\e[49m"; // reset to the background color

internal static string GetForegroundColorEscapeCode(ConsoleColor color)
{
return color switch
{
ConsoleColor.Black => "\x1B[30m",
ConsoleColor.DarkRed => "\x1B[31m",
ConsoleColor.DarkGreen => "\x1B[32m",
ConsoleColor.DarkYellow => "\x1B[33m",
ConsoleColor.DarkBlue => "\x1B[34m",
ConsoleColor.DarkMagenta => "\x1B[35m",
ConsoleColor.DarkCyan => "\x1B[36m",
ConsoleColor.Gray => "\x1B[37m",
ConsoleColor.Red => "\x1B[1m\x1B[31m",
ConsoleColor.Green => "\x1B[1m\x1B[32m",
ConsoleColor.Yellow => "\x1B[1m\x1B[33m",
ConsoleColor.Blue => "\x1B[1m\x1B[34m",
ConsoleColor.Magenta => "\x1B[1m\x1B[35m",
ConsoleColor.Cyan => "\x1B[1m\x1B[36m",
ConsoleColor.White => "\x1B[1m\x1B[37m",
ConsoleColor.Black => "\e[30m",
ConsoleColor.DarkRed => "\e[31m",
ConsoleColor.DarkGreen => "\e[32m",
ConsoleColor.DarkYellow => "\e[33m",
ConsoleColor.DarkBlue => "\e[34m",
ConsoleColor.DarkMagenta => "\e[35m",
ConsoleColor.DarkCyan => "\e[36m",
ConsoleColor.Gray => "\e[37m",
ConsoleColor.Red => "\e[1m\e[31m",
ConsoleColor.Green => "\e[1m\e[32m",
ConsoleColor.Yellow => "\e[1m\e[33m",
ConsoleColor.Blue => "\e[1m\e[34m",
ConsoleColor.Magenta => "\e[1m\e[35m",
ConsoleColor.Cyan => "\e[1m\e[36m",
ConsoleColor.White => "\e[1m\e[37m",
_ => DefaultForegroundColor // default foreground color
};
}
Expand All @@ -157,14 +157,14 @@ internal static string GetBackgroundColorEscapeCode(ConsoleColor color)
{
return color switch
{
ConsoleColor.Black => "\x1B[40m",
ConsoleColor.DarkRed => "\x1B[41m",
ConsoleColor.DarkGreen => "\x1B[42m",
ConsoleColor.DarkYellow => "\x1B[43m",
ConsoleColor.DarkBlue => "\x1B[44m",
ConsoleColor.DarkMagenta => "\x1B[45m",
ConsoleColor.DarkCyan => "\x1B[46m",
ConsoleColor.Gray => "\x1B[47m",
ConsoleColor.Black => "\e[40m",
ConsoleColor.DarkRed => "\e[41m",
ConsoleColor.DarkGreen => "\e[42m",
ConsoleColor.DarkYellow => "\e[43m",
ConsoleColor.DarkBlue => "\e[44m",
ConsoleColor.DarkMagenta => "\e[45m",
ConsoleColor.DarkCyan => "\e[46m",
ConsoleColor.Gray => "\e[47m",
_ => DefaultBackgroundColor // Use default background color
};
}
Expand Down
56 changes: 28 additions & 28 deletions ...sions.Logging.Console/tests/Microsoft.Extensions.Logging.Console.Tests/AnsiParserTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,12 +11,12 @@ namespace Microsoft.Extensions.Logging.Console.Test
{
public class AnsiParserTests
{
private const char EscapeChar = '\x1B';
private const char EscapeChar = '\e';

[Theory]
[InlineData(1, "No Color", "No Color")]
[InlineData(2, "\x1B[41mColored\x1B[49mNo Color", "No Color")]
[InlineData(2, "\x1B[41m\x1B[1m\x1B[31mmColored\x1B[39m\x1B[49mNo Color", "No Color")]
[InlineData(2, "\e[41mColored\e[49mNo Color", "No Color")]
[InlineData(2, "\e[41m\e[1m\e[31mmColored\e[39m\e[49mNo Color", "No Color")]
public void Parse_CheckTimesWrittenToConsole(int numSegments, string message, string lastSegment)
{
// Arrange
Expand Down Expand Up @@ -151,33 +151,33 @@ public void Parse_RepeatedColorChange_PicksLastSet()

[Theory]
// supported
[InlineData("\x1B[77mInfo", "Info")]
[InlineData("\x1B[77m\x1B[1m\x1B[2m\x1B[0mInfo\x1B[1m", "Info")]
[InlineData("\x1B[7mInfo", "Info")]
[InlineData("\x1B[40m\x1B[1m\x1B[33mwarn\x1B[39m\x1B[22m\x1B[49m:", "warn", ":")]
[InlineData("\e[77mInfo", "Info")]
[InlineData("\e[77m\e[1m\e[2m\e[0mInfo\e[1m", "Info")]
[InlineData("\e[7mInfo", "Info")]
[InlineData("\e[40m\e[1m\e[33mwarn\e[39m\e[22m\e[49m:", "warn", ":")]
// unsupported: skips
[InlineData("Info\x1B[77m:", "Info", ":")]
[InlineData("Info\x1B[7m:", "Info", ":")]
[InlineData("Info\e[77m:", "Info", ":")]
[InlineData("Info\e[7m:", "Info", ":")]
// treats as content
[InlineData("\x1B", "\x1B")]
[InlineData("\x1B ", "\x1B ")]
[InlineData("\x1Bm", "\x1Bm")]
[InlineData("\x1B m", "\x1B m")]
[InlineData("\x1Bxym", "\x1Bxym")]
[InlineData("\x1B[", "\x1B[")]
[InlineData("\x1B[m", "\x1B[m")]
[InlineData("\x1B[ ", "\x1B[ ")]
[InlineData("\x1B[ m", "\x1B[ m")]
[InlineData("\x1B[xym", "\x1B[xym")]
[InlineData("\x1B[7777m", "\x1B[7777m")]
[InlineData("\x1B\x1B\x1B", "\x1B\x1B\x1B")]
[InlineData("Message\x1B\x1B\x1B", "Message\x1B\x1B\x1B")]
[InlineData("\x1B\x1BMessage\x1B", "\x1B\x1BMessage\x1B")]
[InlineData("\x1B\x1B\x1BMessage", "\x1B\x1B\x1BMessage")]
[InlineData("Message\x1B ", "Message\x1B ")]
[InlineData("\x1BmMessage", "\x1BmMessage")]
[InlineData("\x1B[77m\x1B m\x1B[40m", "\x1B m")]
[InlineData("\x1B mMessage\x1Bxym", "\x1B mMessage\x1Bxym")]
[InlineData("\e", "\e")]
[InlineData("\e ", "\e ")]
[InlineData("\em", "\em")]
[InlineData("\e m", "\e m")]
[InlineData("\exym", "\exym")]
[InlineData("\e[", "\e[")]
[InlineData("\e[m", "\e[m")]
[InlineData("\e[ ", "\e[ ")]
[InlineData("\e[ m", "\e[ m")]
[InlineData("\e[xym", "\e[xym")]
[InlineData("\e[7777m", "\e[7777m")]
[InlineData("\e\e\e", "\e\e\e")]
[InlineData("Message\e\e\e", "Message\e\e\e")]
[InlineData("\e\eMessage\e", "\e\eMessage\e")]
[InlineData("\e\e\eMessage", "\e\e\eMessage")]
[InlineData("Message\e ", "Message\e ")]
[InlineData("\emMessage", "\emMessage")]
[InlineData("\e[77m\e m\e[40m", "\e m")]
[InlineData("\e mMessage\exym", "\e mMessage\exym")]
public void Parse_ValidSupportedOrUnsupportedCodesInMessage_MessageParsedSuccessfully(string messageWithUnsupportedCode, params string[] output)
{
// Arrange
Expand Down
8 changes: 4 additions & 4 deletions ...ing.Console/tests/Microsoft.Extensions.Logging.Console.Tests/TextWriterExtensionsTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ public void WriteColoredMessage_WithForegroundEscapeCode_AndNoBackgroundColorSpe
var message = "Request received";
var expectedMessage = AnsiParser.GetForegroundColorEscapeCode(ConsoleColor.DarkGreen)
+ message
+ "\x1B[39m\x1B[22m"; //resets foreground color
+ "\e[39m\e[22m"; //resets foreground color
var textWriter = new StringWriter();

// Act
Expand All @@ -33,7 +33,7 @@ public void WriteColoredMessage_WithBackgroundEscapeCode_AndNoForegroundColorSpe
var message = "Request received";
var expectedMessage = AnsiParser.GetBackgroundColorEscapeCode(ConsoleColor.Red)
+ message
+ "\x1B[49m"; //resets background color
+ "\e[49m"; //resets background color
var textWriter = new StringWriter();

// Act
Expand All @@ -51,8 +51,8 @@ public void WriteColoredMessage_InOrder_WhenBothForegroundOrBackgroundColorsSpec
var expectedMessage = AnsiParser.GetBackgroundColorEscapeCode(ConsoleColor.Red)
+ AnsiParser.GetForegroundColorEscapeCode(ConsoleColor.DarkGreen)
+ "Request received"
+ "\x1B[39m\x1B[22m" //resets foreground color
+ "\x1B[49m"; //resets background color
+ "\e[39m\e[22m" //resets foreground color
+ "\e[49m"; //resets background color
var textWriter = new StringWriter();

// Act
Expand Down
2 changes: 1 addition & 1 deletion src/libraries/System.Console/src/System/IO/KeyParser.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ namespace System.IO;

internal static class KeyParser
{
private const char Escape = '\u001B';
private const char Escape = '\e';
private const char Delete = '\u007F';
private const char VtSequenceEndTag = '~';
private const char ModifierSeparator = ';';
Expand Down
10 changes: 5 additions & 5 deletions src/libraries/System.Console/src/System/TerminalFormatStrings.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@ internal sealed class TerminalFormatStrings
/// doesn't contain it (as appears to be the case with e.g. screen and tmux on Ubuntu), at the risk
/// of outputting the sequence on some terminal that's not compatible.
/// </remarks>
public const string CursorPositionReport = "\x1B[6n";
public const string CursorPositionReport = "\e[6n";
/// <summary>
/// The dictionary of keystring to ConsoleKeyInfo.
/// Only some members of the ConsoleKeyInfo are used; in particular, the actual char is ignored.
Expand Down Expand Up @@ -210,13 +210,13 @@ private static string GetTitle(TermInfo.Database db)
case "linux":
case "rxvt":
case "xterm":
return "\x1B]0;%p1%s\x07";
return "\e]0;%p1%s\x07";
case "cygwin":
return "\x1B];%p1%s\x07";
return "\e];%p1%s\x07";
case "konsole":
return "\x1B]30;%p1%s\x07";
return "\e]30;%p1%s\x07";
case "screen":
return "\x1Bk%p1%s\x1B\\";
return "\ek%p1%s\e\\";
default:
return string.Empty;
}
Expand Down
44 changes: 22 additions & 22 deletions src/libraries/System.Console/tests/KeyParserTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ public class KeyParserTests
yield return ('.', ConsoleKey.OemPeriod);
yield return (',', ConsoleKey.OemComma);

yield return ('\u001B', ConsoleKey.Escape);
yield return ('\e', ConsoleKey.Escape);

for (char i = '0'; i <= '9'; i++)
{
Expand Down Expand Up @@ -212,7 +212,7 @@ public void KeysAreProperlyMapped(TerminalData terminalData, byte[] recordedByte
yield return (GetString(33), ConsoleKey.F19);
yield return (GetString(34), ConsoleKey.F20);

static string GetString(int i) => $"\u001B[{i}~";
static string GetString(int i) => $"\e[{i}~";
}
}

Expand All @@ -223,7 +223,7 @@ public static IEnumerable<object[]> VTSequencesArguments
[MemberData(nameof(VTSequencesArguments))]
public void VTSequencesAreProperlyMapped(TerminalData terminalData, string input, ConsoleKey expectedKey)
{
if (terminalData is RxvtUnicode && input == "\u001B[4~" && expectedKey == ConsoleKey.End)
if (terminalData is RxvtUnicode && input == "\e[4~" && expectedKey == ConsoleKey.End)
{
expectedKey = ConsoleKey.Select; // rxvt binds this key to Select in Terminfo and uses "^[[8~" for End key
}
Expand All @@ -239,10 +239,10 @@ public void VTSequencesAreProperlyMapped(TerminalData terminalData, string input
{
get
{
yield return ("\u001BOa", ConsoleKey.UpArrow);
yield return ("\u001BOb", ConsoleKey.DownArrow);
yield return ("\u001BOc", ConsoleKey.RightArrow);
yield return ("\u001BOd", ConsoleKey.LeftArrow);
yield return ("\eOa", ConsoleKey.UpArrow);
yield return ("\eOb", ConsoleKey.DownArrow);
yield return ("\eOc", ConsoleKey.RightArrow);
yield return ("\eOd", ConsoleKey.LeftArrow);
}
}

Expand Down Expand Up @@ -272,9 +272,9 @@ public void ExtendedStringCodePath()
// Ctrl+Backspace
yield return ("\b", new[] { new ConsoleKeyInfo('\b', ConsoleKey.Backspace, false, false, true) });
// Alt+Backspace
yield return ("\u001B\u007F", new[] { new ConsoleKeyInfo((char)0x7F, ConsoleKey.Backspace, false, true, false) });
yield return ("\e\u007F", new[] { new ConsoleKeyInfo((char)0x7F, ConsoleKey.Backspace, false, true, false) });
// Ctrl+Alt+Backspace
yield return ("\u001B\b", new[] { new ConsoleKeyInfo('\b', ConsoleKey.Backspace, false, true, true) });
yield return ("\e\b", new[] { new ConsoleKeyInfo('\b', ConsoleKey.Backspace, false, true, true) });
// Enter
yield return ("\r", new[] { new ConsoleKeyInfo('\r', ConsoleKey.Enter, false, false, false) });
// Ctrl+Enter
Expand All @@ -283,18 +283,18 @@ public void ExtendedStringCodePath()
// Escape key pressed multiple times
for (int i = 1; i <= 5; i++)
{
yield return (new string('\u001B', i), Enumerable.Repeat(new ConsoleKeyInfo('\u001B', ConsoleKey.Escape, false, false, false), i).ToArray());
yield return (new string('\e', i), Enumerable.Repeat(new ConsoleKeyInfo('\e', ConsoleKey.Escape, false, false, false), i).ToArray());
}

// Home key (^[[H) followed by H key
yield return ("\u001B[HH", new[]
yield return ("\e[HH", new[]
{
new ConsoleKeyInfo(default, ConsoleKey.Home, false, false, false),
new ConsoleKeyInfo('H', ConsoleKey.H, true, false, false)
});

// escape sequence (F12 '^[[24~') followed by an extra tylde:
yield return ($"\u001B[24~~", new[]
yield return ($"\e[24~~", new[]
{
new ConsoleKeyInfo(default, ConsoleKey.F12, false, false, false),
new ConsoleKeyInfo('~', default, false, false, false),
Expand All @@ -304,9 +304,9 @@ public void ExtendedStringCodePath()
// Invalid modifiers (valid values are <2, 8>)
foreach (int invalidModifier in new[] { 0, 1, 9 })
{
yield return ($"\u001B[1;{invalidModifier}H", new[]
yield return ($"\e[1;{invalidModifier}H", new[]
{
new ConsoleKeyInfo('\u001B', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('\e', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('[', default, false, false, false),
new ConsoleKeyInfo('1', ConsoleKey.D1, false, false, false),
new ConsoleKeyInfo(';', default, false, false, false),
Expand All @@ -317,29 +317,29 @@ public void ExtendedStringCodePath()
// Invalid ID (valid values are <1, 34> except of 9, 16, 22, 27, 30 and 35)
foreach (int invalidId in new[] { 16, 22, 27, 30, 35, 36, 77, 99 })
{
yield return ($"\u001B[{invalidId}~", new[]
yield return ($"\e[{invalidId}~", new[]
{
new ConsoleKeyInfo('\u001B', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('\e', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('[', default, false, false, false),
new ConsoleKeyInfo((char)('0' + invalidId / 10), ConsoleKey.D0 + invalidId / 10, false, false, false),
new ConsoleKeyInfo((char)('0' + invalidId % 10), ConsoleKey.D0 + invalidId % 10, false, false, false),
new ConsoleKeyInfo('~', default, false, false, false),
});
}
// too long ID (more than 2 digits)
yield return ($"\u001B[111~", new[]
yield return ($"\e[111~", new[]
{
new ConsoleKeyInfo('\u001B', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('\e', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('[', default, false, false, false),
new ConsoleKeyInfo('1', ConsoleKey.D1, false, false, false),
new ConsoleKeyInfo('1', ConsoleKey.D1, false, false, false),
new ConsoleKeyInfo('1', ConsoleKey.D1, false, false, false),
new ConsoleKeyInfo('~', default, false, false, false),
});
// missing closing tag (tylde):
yield return ($"\u001B[24", new[]
yield return ($"\e[24", new[]
{
new ConsoleKeyInfo('\u001B', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('\e', ConsoleKey.Escape, false, false, false),
new ConsoleKeyInfo('[', default, false, false, false),
new ConsoleKeyInfo('2', ConsoleKey.D2, false, false, false),
new ConsoleKeyInfo('4', ConsoleKey.D4, false, false, false),
Expand Down Expand Up @@ -386,7 +386,7 @@ public void NewLineEscapeSequenceProducesCharacter()
{
XTermData xTerm = new();

ConsoleKeyInfo consoleKeyInfo = Parse("\u001BOM".ToCharArray(), xTerm.TerminalDb, xTerm.Verase, 3);
ConsoleKeyInfo consoleKeyInfo = Parse("\eOM".ToCharArray(), xTerm.TerminalDb, xTerm.Verase, 3);

Assert.Equal(ConsoleKey.Enter, consoleKeyInfo.Key);
Assert.Equal('\r', consoleKeyInfo.KeyChar);
Expand All @@ -398,7 +398,7 @@ public void BackTabEscapeSequence()
{
XTermData xTerm = new();

ConsoleKeyInfo consoleKeyInfo = Parse("\u001B[Z".ToCharArray(), xTerm.TerminalDb, xTerm.Verase, 3);
ConsoleKeyInfo consoleKeyInfo = Parse("\e[Z".ToCharArray(), xTerm.TerminalDb, xTerm.Verase, 3);

Assert.Equal(ConsoleKey.Tab, consoleKeyInfo.Key);
Assert.Equal(default, consoleKeyInfo.KeyChar);
Expand Down
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