FileIndex = distinct int32

PRstNode = ref RstNode

RstNode {.acyclic, final.} = object
  case kind*: RstNodeKind    ## the node's kind
  of rnLeaf, rnSmiley:
    text*: string            ## string that is expected to be displayed
  of rnEnumList:
    labelFmt*: string        ## label format like "(1)"
  of rnLineBlockItem:
    lineIndent*: string      ## a few spaces or newline at the line beginning
  of rnAdmonition:
    adType*: string          ## admonition type: "note", "caution", etc. This
                             ## text will set the style and also be displayed
  of rnOverline, rnHeadline, rnMarkdownHeadline:
    level*: int              ## level of headings starting from 1 (main
                             ## chapter) to larger ones (minor sub-sections)
                             ## level=0 means it's document title or subtitle
  of rnFootnote, rnCitation, rnOptionListItem:
    order*: int              ## footnote order (for auto-symbol footnotes and
                             ## auto-numbered ones without a label)
  of rnMarkdownBlockQuoteItem:
    quotationDepth*: int     ## number of characters in line prefix
  of rnRstRef, rnPandocRef, rnSubstitutionReferences, rnInterpretedText,
     rnField, rnInlineCode, rnCodeBlock, rnFootnoteRef:
    info*: TLineInfo         ## To have line/column info for warnings at
                             ## nodes that are post-processed after parsing
  of rnNimdocRef:
    tooltip*: string
  of rnTable, rnGridTable, rnMarkdownTable:
    colCount*: int           ## Number of (not-united) cells in the table
  of rnTableRow:
    endsHeader*: bool        ## Is last row in the header of table?
  of rnTableHeaderCell, rnTableDataCell:
    span*: int               ## Number of table columns that the cell occupies
  else:
    nil
  anchor*: string            ## anchor, internal link target
                             ## (aka HTML id tag, aka Latex label/hypertarget)
  sons*: RstNodeSeq          ## the node's sons

RstNodeKind = enum
  rnInner, rnHeadline, rnOverline, rnMarkdownHeadline, rnTransition,
  rnParagraph, rnBulletList, rnBulletItem, rnEnumList, rnEnumItem, rnDefList,
  rnMdDefList, rnDefItem, rnDefName, rnDefBody, rnFieldList, rnField,
  rnFieldName, rnFieldBody, rnOptionList, rnOptionListItem, rnOptionGroup,
  rnOption, rnOptionString, rnOptionArgument, rnDescription, rnLiteralBlock,
  rnMarkdownBlockQuote, rnMarkdownBlockQuoteItem, rnLineBlock, rnLineBlockItem,
  rnBlockQuote, rnTable, rnGridTable, rnMarkdownTable, rnTableRow,
  rnTableHeaderCell, rnTableDataCell, rnFootnote, rnCitation, rnFootnoteGroup,
  rnStandaloneHyperlink, rnHyperlink, rnRstRef, rnPandocRef, rnInternalRef,
  rnFootnoteRef, rnNimdocRef, rnDirective, rnDirArg, rnRaw, rnTitle, rnContents,
  rnImage, rnFigure, rnCodeBlock, rnAdmonition, rnRawHtml, rnRawLatex,
  rnContainer, rnIndex, rnSubstitutionDef, rnInlineCode, rnCodeFragment,
  rnUnknownRole, rnSub, rnSup, rnIdx, rnEmphasis, rnStrongEmphasis,
  rnTripleEmphasis, rnInterpretedText, rnInlineLiteral, rnInlineTarget,
  rnSubstitutionReferences, rnSmiley, rnDefaultRole, rnLeaf

RstNodeSeq = seq[PRstNode]

TLineInfo = object
  line*: uint16
  col*: int16
  fileIndex*: FileIndex