Method select

lib/selection-manager.ts:257–282

* Select text at specific column and row with length * xterm.js compatible API

(column: number, row: number, length: number)

   * xterm.js compatible API
   */
  select(column: number, row: number, length: number): void {
    // Clamp to valid ranges
    const dims = this.wasmTerm.getDimensions();
    row = Math.max(0, Math.min(row, dims.rows - 1));
    column = Math.max(0, Math.min(column, dims.cols - 1));

    // Calculate end position
    let endRow = row;
    let endCol = column + length - 1;

    // Handle wrapping if selection extends past end of line
    while (endCol >= dims.cols) {
      endCol -= dims.cols;
      endRow++;
    }

    // Clamp end row
    endRow = Math.min(endRow, dims.rows - 1);

    // Convert viewport rows to absolute rows
    const viewportY = this.getViewportY();
    this.selectionStart = { col: column, absoluteRow: viewportY + row };
    this.selectionEnd = { col: endCol, absoluteRow: viewportY + endRow };
    this.requestRender();
    this.selectionChangedEmitter.fire();
  }

  /**
   * Select entire lines from start to end