Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Add Support for 8-bit ANSI Colors
Overview
This pull request enhances the existing parser to support 8-bit ANSI colors, extending its functionality beyond the previously supported basic colors. With this update, the parser now handles the full 256-color palette, enabling applications to render both basic (0-15) and 8-bit extended (16-255) ANSI color codes.
Key Features
Extended Foreground and Background Colors:
38;5;<n>
) and background (48;5;<n>
) 8-bit ANSI color codes.Mixed Color Types:
\x1B[38;5;196;48;5;46m
or\x1B[48;5;46;38;5;196m
).Backwards Compatibility:
30-37
for foreground,40-47
for background, and their bright equivalents90-97
and100-107
).Reset Handling:
\x1B[0m
.Technical Changes
AnsiParser
:extendedFgColor
andextendedBgColor
parsers to handle 8-bit ANSI codes.color
parser to handle sequences with mixed foreground and background color types.AnsiColor
class:isFgExtended
andisBgExtended
flags to distinguish between basic and extended colors.Examples
Input:
\x1B[38;5;196;48;5;46mHello, World!\x1B[0m
Output: Renders "Hello, World!" with a bright red foreground and green background.
Input:
\x1B[31;48;5;46mError\x1B[0m
Output: Renders "Error" with a red foreground and green background.
Impact
This update significantly improves the versatility of the parser by enabling support for richer color schemes. Applications using the parser can now accurately render text with complex ANSI color codes commonly used in modern terminal outputs.
How to Test
Additional Notes
This enhancement aligns the parser with the ANSI 8-bit color standard, ensuring compatibility with tools and libraries that generate extended color codes.