[rejour-relatex] make latex cite command setting more modular and customizable #32

  // TODO: [rejour-rehype/citations] make citation parsing less hardcoded
  // Maybe add a new type to texast: citation.

  const labelToText: { [key: string]: string } = {
    page: 'pp.',
    appendix: 'App.',
  }

  // TODO: [rejour-rehype/citations] make checks for the kind of citations used.
  switch (node.attributes.refType) {
    case 'bibr': {
      const customType = node.attributes.customType

      // TODO: [rejour-relatex] make latex cite command setting more modular and customizable
      let command
      let pre
      let post
      if (customType) {
        const customData = JSON.parse(customType)
        const { prefix, infix, label, locator, mode, suffix } = customData

        const pref = (mode ? infix : prefix) || ''

        const suff = `${
          label && label !== 'none'
            ? `${labelToText[label] || label || 'pp.'} `
            : ''
        }${locator || ''}`
        command = mode ? 'textcite' : 'parencite'

        if (pref) pre = pref
        if (suff) post = suff
      }

      const optCommandArgs = createOptCiteArgs(pre, post)
      return j(
        node,
        'command',
        { name: command || j.citationAnalyzer(node) || 'autocite' },
        [
          ...optCommandArgs,
          {
            type: 'commandArg',
            children: [