Function groupTokens

script/helpers/get-liquid-conditionals.js:73–113

(tokens, tagName, endTagName, newArray = [])

}

function groupTokens(tokens, tagName, endTagName, newArray = []) {
  const startIndex = tokens.findIndex((token) => token.conditional === tagName)
  // The end tag name is currently in a separate token, but we want to group it with the start tag and content.
  const endIndex = tokens.findIndex(
    (token, index) => token.conditional === endTagName && index > startIndex
  )
  // Once all tags are grouped and removed from `tokens`, this findIndex will not find anything,
  // so we can return the grouped result at this point.
  if (startIndex === -1) return newArray

  const condBlockArr = tokens.slice(startIndex, endIndex + 1)
  if (!condBlockArr.length) return newArray

  const [newBlockArr, newEndIndex] = handleNestedTags(
    condBlockArr,
    endIndex,
    tagName,
    endTagName,
    tokens
  )

  // Combine the text of the groups so it's all together.
  const condBlock = newBlockArr.map((t) => t.text).join('')

  const startToken = tokens[startIndex]
  const endToken = tokens[endIndex]
  newArray.push({
    conditional: startToken.text,
    text: condBlock,
    endIfText: endToken.text,
    positionStart: startToken.position,
    positionEnd: endToken.position,
  })

  // Remove the already-processed tokens.
  const numberOfItemsToRemove = newEndIndex + 1 - startIndex
  tokens.splice(startIndex, numberOfItemsToRemove)

  // Run recursively until we reach the end of the tokens.
  return groupTokens(tokens, tagName, endTagName, newArray)
}

function handleNestedTags(condBlockArr, endIndex, tagName, endTagName, tokens) {
  // Return early if there are no nested tags to be handled.