Function buildPlainSplitCellLines

src/ui/diff/renderRows.tsx:455–499

(
  cell: SplitLineCell,
  width: number,
  lineNumberDigits: number,
  showLineNumbers: boolean,
  prefixWidth: number,
  theme: AppTheme,
  wrapLines: boolean,
  codeHorizontalOffset = 0,
)

}

function buildPlainSplitCellLines(
  cell: SplitLineCell,
  width: number,
  lineNumberDigits: number,
  showLineNumbers: boolean,
  prefixWidth: number,
  theme: AppTheme,
  wrapLines: boolean,
  codeHorizontalOffset = 0,
) {
  if (!wrapLines) {
    const { gutterWidth, contentWidth } = resolveSplitCellGeometry(
      width,
      lineNumberDigits,
      showLineNumbers,
      prefixWidth,
    );
    const gutterText = splitGutterText(cell, lineNumberDigits, showLineNumbers).padEnd(gutterWidth);

    return [
      {
        contentWidth,
        gutterWidth,
        spansText: gutterText + spansToPlainText(cell.spans, contentWidth, codeHorizontalOffset),
      },
    ];
  }

  const layout = buildWrappedSplitCell(
    cell,
    width,
    lineNumberDigits,
    showLineNumbers,
    prefixWidth,
    theme,
  );

  // Mirror the TUI renderer, which does not apply horizontal scrolling to wrapped rows.
  // Keeping the plain-text path aligned avoids visual/clipboard drift.
  return layout.lines.map((line) => ({
    contentWidth: layout.contentWidth,
    gutterWidth: layout.gutterWidth,
    spansText: line.gutterText + spansToPlainText(line.spans, layout.contentWidth),
  }));
}

function buildPlainStackCellLines(
  cell: StackLineCell,