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Add diff file syntax highlighting

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ema
2025-09-08 02:16:55 +08:00
parent d6274ac331
commit e0a2204e56
2 changed files with 248 additions and 0 deletions
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124
QuickLook.Plugin/QuickLook.Plugin.TextViewer/Themes/HighlightingDefinitions/Dark/DiffHighlightingDefinition.cs Normal file
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// Copyright © 2017-2025 QL-Win Contributors
//
// This file is part of QuickLook program.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using ICSharpCode.AvalonEdit.Document;
using ICSharpCode.AvalonEdit.Highlighting;
using ICSharpCode.AvalonEdit.Rendering;
using System.Collections.Generic;
using System.Text.RegularExpressions;
namespace QuickLook.Plugin.TextViewer.Themes.HighlightingDefinitions.Dark;
public class DiffHighlightingDefinition : DarkHighlightingDefinition
{
public override string Name => "Diff";
public override string Extension => ".diff";
public override HighlightingRuleSet MainRuleSet => new()
{
Rules =
{
// Diff header (diff --git, index, etc.)
new HighlightingRule
{
Regex = new Regex(@"^(diff --git|index|---|\+\+\+)", RegexOptions.Compiled),
Color = GetNamedColor("Header")
},
// File mode and other metadata
new HighlightingRule
{
Regex = new Regex(@"^(new file mode|deleted file mode|old mode|new mode|similarity index|dissimilarity index|rename from|rename to|copy from|copy to)", RegexOptions.Compiled),
Color = GetNamedColor("Metadata")
},
// Hunk headers (@@ ... @@)
new HighlightingRule
{
Regex = new Regex(@"^@@.*@@$", RegexOptions.Compiled),
Color = GetNamedColor("HunkHeader")
},
// Added lines (+)
new HighlightingRule
{
Regex = new Regex(@"^\+.*$", RegexOptions.Compiled),
Color = GetNamedColor("Added")
},
// Removed lines (-)
new HighlightingRule
{
Regex = new Regex(@"^-.*$", RegexOptions.Compiled),
Color = GetNamedColor("Removed")
},
// Context lines (unchanged)
new HighlightingRule
{
Regex = new Regex(@"^ .*", RegexOptions.Compiled),
Color = GetNamedColor("Context")
}
}
};
public override HighlightingColor GetNamedColor(string name)
{
return name switch
{
"Header" => new HighlightingColor
{
Name = "Header",
Foreground = new SimpleHighlightingBrush("#569CD6".ToColor()), // Blue for headers
},
"Metadata" => new HighlightingColor
{
Name = "Metadata",
Foreground = new SimpleHighlightingBrush("#808080".ToColor()), // Gray for metadata
},
"HunkHeader" => new HighlightingColor
{
Name = "HunkHeader",
Foreground = new SimpleHighlightingBrush("#C586C0".ToColor()), // Purple for hunk headers
},
"Added" => new HighlightingColor
{
Name = "Added",
Foreground = new SimpleHighlightingBrush("#6A9949".ToColor()), // Green for added lines
},
"Removed" => new HighlightingColor
{
Name = "Removed",
Foreground = new SimpleHighlightingBrush("#F44747".ToColor()), // Red for removed lines
},
"Context" => new HighlightingColor
{
Name = "Context",
Foreground = new SimpleHighlightingBrush("#D4D4D4".ToColor()), // Light gray for context
},
_ => null,
};
}
public override IEnumerable<HighlightingColor> NamedHighlightingColors =>
[
GetNamedColor("Header"),
GetNamedColor("Metadata"),
GetNamedColor("HunkHeader"),
GetNamedColor("Added"),
GetNamedColor("Removed"),
GetNamedColor("Context"),
];
public override DocumentColorizingTransformer[] LineTransformers { get; } = [];
}

124
QuickLook.Plugin/QuickLook.Plugin.TextViewer/Themes/HighlightingDefinitions/Light/DiffHighlightingDefinition.cs Normal file
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// Copyright © 2017-2025 QL-Win Contributors
//
// This file is part of QuickLook program.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using ICSharpCode.AvalonEdit.Document;
using ICSharpCode.AvalonEdit.Highlighting;
using ICSharpCode.AvalonEdit.Rendering;
using System.Collections.Generic;
using System.Text.RegularExpressions;
namespace QuickLook.Plugin.TextViewer.Themes.HighlightingDefinitions.Light;
public class DiffHighlightingDefinition : LightHighlightingDefinition
{
public override string Name => "Diff";
public override string Extension => ".diff";
public override HighlightingRuleSet MainRuleSet => new()
{
Rules =
{
// Diff header (diff --git, index, etc.)
new HighlightingRule
{
Regex = new Regex(@"^(diff --git|index|---|\+\+\+)", RegexOptions.Compiled),
Color = GetNamedColor("Header")
},
// File mode and other metadata
new HighlightingRule
{
Regex = new Regex(@"^(new file mode|deleted file mode|old mode|new mode|similarity index|dissimilarity index|rename from|rename to|copy from|copy to)", RegexOptions.Compiled),
Color = GetNamedColor("Metadata")
},
// Hunk headers (@@ ... @@)
new HighlightingRule
{
Regex = new Regex(@"^@@.*@@$", RegexOptions.Compiled),
Color = GetNamedColor("HunkHeader")
},
// Added lines (+)
new HighlightingRule
{
Regex = new Regex(@"^\+.*$", RegexOptions.Compiled),
Color = GetNamedColor("Added")
},
// Removed lines (-)
new HighlightingRule
{
Regex = new Regex(@"^-.*$", RegexOptions.Compiled),
Color = GetNamedColor("Removed")
},
// Context lines (unchanged)
new HighlightingRule
{
Regex = new Regex(@"^ .*", RegexOptions.Compiled),
Color = GetNamedColor("Context")
}
}
};
public override HighlightingColor GetNamedColor(string name)
{
return name switch
{
"Header" => new HighlightingColor
{
Name = "Header",
Foreground = new SimpleHighlightingBrush("#2563EB".ToColor()), // Blue for headers
},
"Metadata" => new HighlightingColor
{
Name = "Metadata",
Foreground = new SimpleHighlightingBrush("#6B7280".ToColor()), // Gray for metadata
},
"HunkHeader" => new HighlightingColor
{
Name = "HunkHeader",
Foreground = new SimpleHighlightingBrush("#7C3AED".ToColor()), // Purple for hunk headers
},
"Added" => new HighlightingColor
{
Name = "Added",
Foreground = new SimpleHighlightingBrush("#15803D".ToColor()), // Green for added lines
},
"Removed" => new HighlightingColor
{
Name = "Removed",
Foreground = new SimpleHighlightingBrush("#DC2626".ToColor()), // Red for removed lines
},
"Context" => new HighlightingColor
{
Name = "Context",
Foreground = new SimpleHighlightingBrush("#374151".ToColor()), // Gray for context
},
_ => null,
};
}
public override IEnumerable<HighlightingColor> NamedHighlightingColors =>
[
GetNamedColor("Header"),
GetNamedColor("Metadata"),
GetNamedColor("HunkHeader"),
GetNamedColor("Added"),
GetNamedColor("Removed"),
GetNamedColor("Context"),
];
public override DocumentColorizingTransformer[] LineTransformers { get; } = [];
}