Module rstast

This module implements an AST for the reStructuredText parser.

Imports

strutils, json

Types

RstNodeKind = enum
  rnInner, rnHeadline, rnOverline, rnTransition, rnParagraph, rnBulletList,
  rnBulletItem, rnEnumList, rnEnumItem, rnDefList, rnDefItem, rnDefName, rnDefBody,
  rnFieldList, rnField, rnFieldName, rnFieldBody, rnOptionList, rnOptionListItem,
  rnOptionGroup, rnOption, rnOptionString, rnOptionArgument, rnDescription,
  rnLiteralBlock, rnQuotedLiteralBlock, rnLineBlock, rnLineBlockItem, rnBlockQuote,
  rnTable, rnGridTable, rnTableRow, rnTableHeaderCell, rnTableDataCell, rnLabel,
  rnFootnote, rnCitation, rnStandaloneHyperlink, rnHyperlink, rnRef, rnDirective,
  rnDirArg, rnRaw, rnTitle, rnContents, rnImage, rnFigure, rnCodeBlock, rnRawHtml,
  rnRawLatex, rnContainer, rnIndex, rnSubstitutionDef, rnGeneralRole, rnSub, rnSup,
  rnIdx, rnEmphasis, rnStrongEmphasis, rnTripleEmphasis, rnInterpretedText,
  rnInlineLiteral, rnSubstitutionReferences, rnSmiley, rnLeaf

the possible node kinds of an PRstNode

PRstNode = ref RstNode

an RST node

RstNodeSeq = seq[PRstNode]

RstNode = object
  kind*: RstNodeKind           ## the node's kind
  text*: string                ## valid for leafs in the AST; and the title of
              ## the document or the section
  level*: int                  ## valid for some node kinds
  sons*: RstNodeSeq            ## the node's sons

an RST node's description

Procs

proc len(n: PRstNode): int {.raises: [], tags: [].}

proc newRstNode(kind: RstNodeKind): PRstNode {.raises: [], tags: [].}

proc newRstNode(kind: RstNodeKind; s: string): PRstNode {.raises: [], tags: [].}

proc lastSon(n: PRstNode): PRstNode {.raises: [], tags: [].}

proc add(father, son: PRstNode) {.raises: [], tags: [].}

proc addIfNotNil(father, son: PRstNode) {.raises: [], tags: [].}

proc renderRstToRst(n: PRstNode; result: var string) {.raises: [Exception],
    tags: [RootEffect].}

renders n into its string representation and appends to result.

proc renderRstToJson(node: PRstNode): string {.raises: [], tags: [].}

Writes the given RST node as JSON that is in the form

{
  "kind":string node.kind,
  "text":optional string node.text,
  "level":optional int node.level,
  "sons":optional node array
}