Method _bufferColsToStringOffset

src/server/web/public/terminal.js:6562–6575

(e3, t3)

              const o2 = i2.getCell(e4 + 1);
              o2 && 0 === o2.getWidth() && t3++;
            }
            return t3;
          }
          _bufferColsToStringOffset(e3, t3) {
            const i2 = this._terminal;
            let s2 = e3, r2 = 0, o2 = i2.buffer.active.getLine(s2);
            for (; t3 > 0 && o2; ) {
              for (let e4 = 0; e4 < t3 && e4 < i2.cols; e4++) {
                const t4 = o2.getCell(e4);
                if (!t4) break;
                t4.getWidth() && (r2 += 0 === t4.getCode() ? 1 : t4.getChars().length);
              }
              if (s2++, o2 = i2.buffer.active.getLine(s2), o2 && !o2.isWrapped) break;
              t3 -= i2.cols;
            }
            return r2;
          }