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fix: properly handle utf-8 in diff highlighting (#585)

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Lev
2025-07-03 12:42:40 +02:00
committed by GitHub
parent 8c4b5e088b
commit 2ace57404b
1 changed files with 9 additions and 4 deletions
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13
packages/tui/internal/components/diff/diff.go
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@@ -10,6 +10,7 @@ import (
"strconv" "strconv"
"strings" "strings"
"sync" "sync"
"unicode/utf8"
"github.com/alecthomas/chroma/v2" "github.com/alecthomas/chroma/v2"
"github.com/alecthomas/chroma/v2/formatters" "github.com/alecthomas/chroma/v2/formatters"
@@ -575,7 +576,10 @@ func applyHighlighting(content string, segments []Segment, segmentType LineType,
ansiSequences[visibleIdx] = lastAnsiSeq ansiSequences[visibleIdx] = lastAnsiSeq
} }
visibleIdx++ visibleIdx++
i++
// Properly advance by UTF-8 rune, not byte
_, size := utf8.DecodeRuneInString(content[i:])
i += size
} }
// Apply highlighting // Apply highlighting
@@ -622,8 +626,9 @@ func applyHighlighting(content string, segments []Segment, segmentType LineType,
} }
} }
// Get current character // Get current character (properly handle UTF-8)
char := string(content[i]) r, size := utf8.DecodeRuneInString(content[i:])
char := string(r)
if inSelection { if inSelection {
// Get the current styling // Get the current styling
@@ -657,7 +662,7 @@ func applyHighlighting(content string, segments []Segment, segmentType LineType,
} }
currentPos++ currentPos++
i++ i += size
} }
return sb.String() return sb.String()