A collection of experiments with Jevko and text markup. Translating Jevko to HTML/XML.
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 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><html><
<head><
<meta />
>
<body><
<p title<explanation> disabled><
<b><click> on this <a href<#>><link><br/>
>
>
[html/
[head/
[meta]
]
[body/
[p title[explanation] disabled/
[b/click] on this [a href[#]/link][br]
]
]
]
XML subset with no attributes
svg[width[391] height[391] viewBox[-70.5 -70.5 391 391] xmlns[http://www.w3.org/2000/svg] xmlns:xlink[http://www.w3.org/1999/xlink]
rect[fill[#fff] stroke[#000] x[-70] y[-70] width[390] height[390]]
g[opacity[0.8]
rect[x[25] y[25] width[200] height[200] fill[lime] stroke-width[4] stroke[pink]]
circle[cx[125] cy[125] r[75] fill[orange]]
polyline[points[50,150 50,200 200,200 200,100] stroke[red] stroke-width[4] fill[none]]
line[x1[50] y1[50] x2[200] y2[200] stroke[blue] stroke-width[4]]
]
]
like astToXml3, but supports attributes which are separated from content by /
svg[width[391] height[391] viewBox[-70.5 -70.5 391 391] xmlns[http://www.w3.org/2000/svg] xmlns:xlink[http://www.w3.org/1999/xlink]/
rect[fill[#fff] stroke[#000] x[-70] y[-70] width[390] height[390]]
g[opacity[0.8]/
rect[x[25] y[25] width[200] height[200] fill[lime] stroke-width[4] stroke[pink]]
circle[cx[125] cy[125] r[75] fill[orange]]
polyline[points[50,150 50,200 200,200 200,100] stroke[red] stroke-width[4] fill[none]]
line[x1[50] y1[50] x2[200] y2[200] stroke[blue] stroke-width[4]]
]
]
attributes are marked with =
elements with empty tags resolve to text nodes
phyloxml[xmlns:xsi=[http://www.w3.org/2001/XMLSchema-instance] xmlns=[http://www.phyloxml.org] xsi:schemaLocation=[http://www.phyloxml.org http://www.phyloxml.org/1.10/phyloxml.xsd]
phylogeny[rooted=[true]
name[Alcohol dehydrogenases]
description[contains examples of commonly used elements]
clade[
events[
speciations[1]
]
clade[
taxonomy[
id[provider=[ncbi]6645]
scientific_name[Octopus vulgaris]
]
sequence[
accession[source=[UniProtKB]P81431]
name[Alcohol dehydrogenase class-3]
]
]
clade[
confidence[type=[bootstrap]100]
events[
speciations[1]
]
clade[
taxonomy[
id[provider=[ncbi]1423]
scientific_name[Bacillus subtilis]
]
sequence[
accession[source=[UniProtKB]P71017]
name[Alcohol dehydrogenase]
]
]
clade[
taxonomy[
id[provider=[ncbi]562]
scientific_name[Escherichia coli]
]
sequence[
accession[source=[UniProtKB]Q46856]
name[Alcohol dehydrogenase]
]
]
]
]
]
]
like astToXml5, but attributes are of the form tag [[attributes] children], i.e. they come as the first child with empty tag. This means that to have a tag with no attributes and a text node as the first child one must write tag [[][text]]
phyloxml[[xmlns:xsi[http://www.w3.org/2001/XMLSchema-instance] xmlns[http://www.phyloxml.org] xsi:schemaLocation[http://www.phyloxml.org http://www.phyloxml.org/1.10/phyloxml.xsd]]
phylogeny[[rooted[true]]
name[Alcohol dehydrogenases]
description[contains examples of commonly used elements]
clade[
events[
speciations[1]
]
clade[
taxonomy[
id[[provider[ncbi]]6645]
scientific_name[Octopus vulgaris]
]
sequence[
accession[[source[UniProtKB]]P81431]
name[Alcohol dehydrogenase class-3]
]
]
clade[
confidence[[type[bootstrap]]100]
events[
speciations[1]
]
clade[
taxonomy[
id[[provider[ncbi]]1423]
scientific_name[Bacillus subtilis]
]
sequence[
accession[[source[UniProtKB]]P71017]
name[Alcohol dehydrogenase]
]
]
clade[
taxonomy[
id[[provider[ncbi]]562]
scientific_name[Escherichia coli]
]
sequence[
accession[[source[UniProtKB]]Q46856]
name[Alcohol dehydrogenase]
]
]
]
]
]
]
Like astToXml6, except attributes come immediately after the tag, separated by a space. Out of all of the above this encoding is the most compact for data interchange.
svg width[391] height[391] viewBox[-70.5 -70.5 391 391] xmlns[http://www.w3.org/2000/svg] xmlns:xlink[http://www.w3.org/1999/xlink][
rect fill[#fff] stroke[#000] x[-70] y[-70] width[390] height[390][]
g opacity[0.8][
rect x[25] y[25] width[200] height[200] fill[lime] stroke-width[4] stroke[pink][]
circle cx[125] cy[125] r[75] fill[orange][]
polyline points[50,150 50,200 200,200 200,100] stroke[red] stroke-width[4] fill[none][]
line x1[50] y1[50] x2[200] y2[200] stroke[blue] stroke-width[4][]
]
]
Like astToXml7, except that a tag without content may omit empty brackets if it is followed by a tag with attributes.
svg width[391] height[391] viewBox[-70.5 -70.5 391 391] xmlns[http://www.w3.org/2000/svg] xmlns:xlink[http://www.w3.org/1999/xlink][
rect fill[#fff] stroke[#000] x[-70] y[-70] width[390] height[390]
g opacity[0.8][
rect x[25] y[25] width[200] height[200] fill[lime] stroke-width[4] stroke[pink]
circle cx[125] cy[125] r[75] fill[orange]
polyline points[50,150 50,200 200,200 200,100] stroke[red] stroke-width[4] fill[none]
line x1[50] y1[50] x2[200] y2[200] stroke[blue] stroke-width[4]
]
]
In this encoding shorthand attributes without values must be placed immediately after the tag, and if they any are specified, they must be followed by a non-shorthand attribute i.e.:
elem attr attr2 attr3[][content]
Converts a little DSL for HTML tables into HTML.
For example this:
#[[decimal][hexadecimal][decimal-encoded hexadecimal]]
[[1] [1] [1] ]
[[12] [c] [u[03]] ]
[[57] [20] [[2]u[00]] ]
[[128] [80] [[8]u[00]] ]
[[1000] [3e8] [[3]u[05]8] ]
[[5598] [15de] [[15]u[04]u[05]] ]
turns into something like this:
<table>
<tr><th>decimal</th><th>hexadecimal</th><th>decimal-encoded hexadecimal</th></tr>
<tr><td>1</td> <td>1</td> <td>1</td> </tr>
<tr><td>12</td> <td>c</td> <td><u>03</u></td> </tr>
<tr><td>57</td> <td>20</td> <td>2<u>00</u></td> </tr>
<tr><td>128</td> <td>80</td> <td>8<u>00</u></td> </tr>
<tr><td>1000</td> <td>3e8</td> <td>3<u>05</u>8</td> </tr>
<tr><td>5598</td> <td>15de</td> <td>15<u>04</u><u>05</u></td> </tr>
</table>