Function deleteText

src/ytype.js:355–400

(transaction, currPos, length)

 * @function
 */
export const deleteText = (transaction, currPos, length) => {
  const startLength = length
  const startAttrs = map.copy(currPos.currentAttributes)
  const start = currPos.right
  while (length > 0 && currPos.right !== null) {
    const item = currPos.right
    if (!item.deleted && item.countable) {
      if (length < item.length) {
        getItemCleanStart(transaction, createID(item.id.client, item.id.clock + length))
      }
      length -= item.length
      item.delete(transaction)
    } else if (currPos.am !== noAttributionsManager) {
      /**
       * @type {Array<import('./internals.js').AttributedContent<any>>}
       */
      const contents = []
      currPos.am.readContent(contents, item.id.client, item.id.clock, true, item.content, 0)
      for (let i = 0; i < contents.length; i++) {
        const c = contents[i]
        if (c.content.isCountable() && c.attrs != null) {
          // deleting already deleted content. store that information in a meta property, but do
          // nothing
          const contentLen = math.min(c.content.getLength(), length)
          map.setIfUndefined(transaction.meta, 'attributedDeletes', createIdSet).add(item.id.client, c.clock, contentLen)
          length -= contentLen
        }
      }
      const lastContent = contents.length > 0 ? contents[contents.length - 1] : null
      const nextItemClock = item.id.clock + item.length
      const nextContentClock = lastContent != null ? lastContent.clock + lastContent.content.getLength() : nextItemClock
      if (nextContentClock < nextItemClock) {
        getItemCleanStart(transaction, createID(item.id.client, nextContentClock))
      }
    }
    currPos.forward()
  }
  if (start) {
    cleanupFormattingGap(transaction, start, currPos.right, startAttrs, currPos.currentAttributes)
  }
  const parent = /** @type {YType<any>} */ (/** @type {Item} */ (currPos.left || currPos.right).parent)
  if (parent._searchMarker) {
    updateMarkerChanges(parent._searchMarker, currPos.index, -startLength + length)
  }
  return currPos
}

export class ArraySearchMarker {
  /**