A collection of experiments with Jevko and text markup. Translating Jevko to HTML/XML.

parse

parse is a parser for the following ABNF grammar:

Value = Subvalues Suffix
Subvalue = Prefix "[" Value "]"
Subvalues = *Subvalue
Suffix = *Char
Prefix = *Char
Char = Escape / %x0-5a / %x5c / %x5e-5f / %x61-10ffff
Escape = "`" ("`" / "[" / "]")

which is equivalent to the Jevko grammar.

The shape of the trees returned by parse fairly closely matches the grammar, e.g.:

{
  "subvalues": [
    {
      "prefix": "key ",
      "value": {
        "subvalues": [],
        "suffix": "value"
      }
    }
  ],
  "suffix": ""
}

is the syntax tree of the string:

key [value]

astToHtml

astToHtml converts a parse tree returned by parse into HTML/XML string, effectively translating a compact Jevko-based encoding of XML to XML itself. For example the following Jevko string:

[html][
  [head][
    [meta /]
  ]
  [body][
    [p title[explanation] disabled][
      [b][click] on this [a href[#]][link][br/]
    ]
  ]
]

can be translated to the following XML string:

<html>
  <head>
    <meta />
  </head>
  <body>
    <p title="explanation" disabled>
      <b>click</b> on this <a href="#">link</a><br/>
    </p>
  </body>
</html>

astToXml

" <