Function readFlowCollection

src/parser/parser.ts:859–954

(state: ParserState, nodeIndent: number, props: NodeProperties)

}

function readFlowCollection (state: ParserState, nodeIndent: number, props: NodeProperties) {
  const ch = state.input.charCodeAt(state.position)
  const isMapping = ch === 0x7B/* { */
  const start = state.position
  let readNext = true

  if (ch !== 0x5B/* [ */ && ch !== 0x7B/* { */) return false

  const terminator = isMapping ? 0x7D/* } */ : 0x5D/* ] */

  if (isMapping) {
    addMappingEvent(state, start, props.anchorStart, props.anchorEnd, props.tagStart, props.tagEnd, COLLECTION_STYLE_FLOW)
  } else {
    addSequenceEvent(state, start, props.anchorStart, props.anchorEnd, props.tagStart, props.tagEnd, COLLECTION_STYLE_FLOW)
  }

  state.position++

  while (state.input.charCodeAt(state.position) !== 0) {
    skipFlowSeparationSpace(state, nodeIndent)

    let ch = state.input.charCodeAt(state.position)

    if (ch === terminator) {
      state.position++
      addPopEvent(state)
      return true
    } else if (!readNext) {
      throwError(state, 'missed comma between flow collection entries')
    } else if (ch === 0x2C/* , */) {
      throwError(state, "expected the node content, but found ','")
    }

    let isPair = false
    let isExplicitPair = false

    if (ch === 0x3F/* ? */ && isWsOrEol(state.input.charCodeAt(state.position + 1))) {
      isPair = isExplicitPair = true
      state.position += 1
      skipFlowSeparationSpace(state, nodeIndent)
    }

    const entryLine = state.line
    const entryStart = snapshotState(state)

    const keyWasRead = parseNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true)
    skipFlowSeparationSpace(state, nodeIndent)

    ch = state.input.charCodeAt(state.position)

    if ((isMapping || isExplicitPair || state.line === entryLine) && ch === 0x3A/* : */) {
      isPair = true
      state.position++
      skipFlowSeparationSpace(state, nodeIndent)
      if (!isMapping) {
        restoreState(state, entryStart)
        addMappingEvent(state, entryStart.position, NO_RANGE, NO_RANGE, NO_RANGE, NO_RANGE, COLLECTION_STYLE_FLOW)
        if (!parseNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true)) {