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grammar.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style type="text/css">
svg.railroad-diagram {
background-color: hsl(30,20%,95%);
}
svg.railroad-diagram path {
stroke-width: 3;
stroke: black;
fill: rgba(0,0,0,0);
}
svg.railroad-diagram text {
font: bold 14px monospace;
text-anchor: middle;
}
svg.railroad-diagram text.label {
text-anchor: start;
}
svg.railroad-diagram text.comment {
font: italic 12px monospace;
}
svg.railroad-diagram rect {
stroke-width: 3;
stroke: black;
fill: hsl(120,100%,90%);
}
</style>
</head>
<body>
<h1><code>nestup</code></h1>
<div>
<svg class="railroad-diagram" width="469" height="121" viewBox="0 0 469 121">
<g transform="translate(.5 .5)">
<path d="M 20 31 v 20 m 10 -20 v 20 m -10 -10 h 20.5"></path>
<g>
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</g>
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<g>
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</g>
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<g>
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<g>
<path d="M70 90h0"></path>
<path d="M330 90h0"></path>
<rect x="70" y="79" width="260" height="22"></rect>
<text x="200" y="94">container_list_or_subdivisions</text>
</g>
<path d="M330 90h10"></path>
<g>
<path d="M340 90h0"></path>
<path d="M408 90h0"></path>
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</g>
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</g>
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</g>
<path d="M 428 41 h 20 m -10 -10 v 20 m 10 -20 v 20"></path>
</g>
</svg>
</div>
<h1><code>container_list_or_subdivisions</code></h1>
<div>
<svg class="railroad-diagram" width="325" height="102" viewBox="0 0 325 102">
<g transform="translate(.5 .5)">
<path d="M 20 31 v 20 m 10 -20 v 20 m -10 -10 h 20.5"></path>
<g>
<path d="M40 41h0"></path>
<path d="M284 41h0"></path>
<path d="M40 41h20"></path>
<g>
<path d="M60 41h0"></path>
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<g>
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<g>
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</g>
<path d="M108 21a10 10 0 0 1 10 10v0a10 10 0 0 0 10 10"></path>
<path d="M60 41h20"></path>
<g>
<path d="M80 41h0"></path>
<path d="M108 41h0"></path>
<rect x="80" y="30" width="28" height="22"></rect>
<text x="94" y="45">_</text>
</g>
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</g>
<path d="M128 41h10"></path>
<g>
<path d="M138 41h0"></path>
<path d="M254 41h0"></path>
<rect x="138" y="30" width="116" height="22"></rect>
<text x="196" y="45">subdivisions</text>
</g>
<path d="M254 41h10"></path>
</g>
<path d="M264 41h20"></path>
<path d="M40 41a10 10 0 0 1 10 10v10a10 10 0 0 0 10 10"></path>
<g>
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<g>
<path d="M96 71h0"></path>
<path d="M228 71h0"></path>
<rect x="96" y="60" width="132" height="22"></rect>
<text x="162" y="75">container_list</text>
</g>
<path d="M228 71h10"></path>
</g>
<path d="M264 71a10 10 0 0 0 10 -10v-10a10 10 0 0 1 10 -10"></path>
</g>
<path d="M 284 41 h 20 m -10 -10 v 20 m 10 -20 v 20"></path>
</g>
</svg>
</div>
<h1><code>container_list</code></h1>
<div>
<svg class="railroad-diagram" width="573" height="132" viewBox="0 0 573 132">
<g transform="translate(.5 .5)">
<path d="M 20 21 v 20 m 10 -20 v 20 m -10 -10 h 20.5"></path>
<g>
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<rect x="240" y="20" width="92" height="22"></rect>
<text x="286" y="35">container</text>
</g>
<path d="M332 31h10"></path>
</g>
<path d="M512 31h20"></path>
<path d="M40 31a10 10 0 0 1 10 10v10a10 10 0 0 0 10 10"></path>
<g>
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<g>
<path d="M164 61h0"></path>
<path d="M256 61h0"></path>
<rect x="164" y="50" width="92" height="22"></rect>
<text x="210" y="65">container</text>
</g>
<path d="M256 61h10"></path>
<path d="M266 61h10"></path>
<g>
<path d="M276 61h0"></path>
<path d="M408 61h0"></path>
<rect x="276" y="50" width="132" height="22"></rect>
<text x="342" y="65">container_list</text>
</g>
<path d="M408 61h10"></path>
</g>
<path d="M512 61a10 10 0 0 0 10 -10v-10a10 10 0 0 1 10 -10"></path>
<path d="M40 31a10 10 0 0 1 10 10v50a10 10 0 0 0 10 10"></path>
<g>
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<path d="M512 101h0"></path>
<path d="M60 101h10"></path>
<g>
<path d="M70 101h0"></path>
<path d="M162 101h0"></path>
<rect x="70" y="90" width="92" height="22"></rect>
<text x="116" y="105">container</text>
</g>
<path d="M162 101h10"></path>
<g>
<path d="M172 101h0"></path>
<path d="M240 101h0"></path>
<path d="M172 101a10 10 0 0 0 10 -10v0a10 10 0 0 1 10 -10"></path>
<g>
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</g>
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<g>
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<text x="206" y="105">_</text>
</g>
<path d="M220 101h20"></path>
</g>
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<g>
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<path d="M350 101h0"></path>
<rect x="250" y="90" width="100" height="22" rx="10" ry="10"></rect>
<text x="300" y="105">underscore</text>
</g>
<path d="M350 101h10"></path>
<path d="M360 101h10"></path>
<g>
<path d="M370 101h0"></path>
<path d="M502 101h0"></path>
<rect x="370" y="90" width="132" height="22"></rect>
<text x="436" y="105">container_list</text>
</g>
<path d="M502 101h10"></path>
</g>
<path d="M512 101a10 10 0 0 0 10 -10v-50a10 10 0 0 1 10 -10"></path>
</g>
<path d="M 532 31 h 20 m -10 -10 v 20 m 10 -20 v 20"></path>
</g>
</svg>
</div>
<h1><code>container</code></h1>
<div>
<svg class="railroad-diagram" width="365" height="112" viewBox="0 0 365 112">
<g transform="translate(.5 .5)">
<path d="M 20 31 v 20 m 10 -20 v 20 m -10 -10 h 20.5"></path>
<g>
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<g>
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<g>
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<path d="M68 41a10 10 0 0 0 10 -10v0a10 10 0 0 1 10 -10"></path>
<g>
<path d="M88 21h28"></path>
</g>
<path d="M116 21a10 10 0 0 1 10 10v0a10 10 0 0 0 10 10"></path>
<path d="M68 41h20"></path>
<g>
<path d="M88 41h0"></path>
<path d="M116 41h0"></path>
<rect x="88" y="30" width="28" height="22"></rect>
<text x="102" y="45">_</text>
</g>
<path d="M116 41h20"></path>
</g>
<path d="M136 41h10"></path>
<g>
<path d="M146 41h0"></path>
<path d="M286 41h0"></path>
<rect x="146" y="30" width="140" height="22"></rect>
<text x="216" y="45">sized_container</text>
</g>
<path d="M286 41h10"></path>
</g>
<path d="M304 41h20"></path>
<path d="M40 41a10 10 0 0 1 10 10v20a10 10 0 0 0 10 10"></path>
<g>
<path d="M60 81h0"></path>
<path d="M304 81h0"></path>
<g>
<path d="M60 81h0"></path>
<path d="M128 81h0"></path>
<path d="M60 81a10 10 0 0 0 10 -10v0a10 10 0 0 1 10 -10"></path>
<g>
<path d="M80 61h28"></path>
</g>
<path d="M108 61a10 10 0 0 1 10 10v0a10 10 0 0 0 10 10"></path>
<path d="M60 81h20"></path>
<g>
<path d="M80 81h0"></path>
<path d="M108 81h0"></path>
<rect x="80" y="70" width="28" height="22"></rect>
<text x="94" y="85">_</text>
</g>
<path d="M108 81h20"></path>
</g>
<path d="M128 81h10"></path>
<g>
<path d="M138 81h0"></path>
<path d="M294 81h0"></path>
<rect x="138" y="70" width="156" height="22"></rect>
<text x="216" y="85">unsized_container</text>
</g>
<path d="M294 81h10"></path>
</g>
<path d="M304 81a10 10 0 0 0 10 -10v-20a10 10 0 0 1 10 -10"></path>
</g>
<path d="M 324 41 h 20 m -10 -10 v 20 m 10 -20 v 20"></path>
</g>
</svg>
</div>
<h1><code>sized_container</code></h1>
<div>
<svg class="railroad-diagram" width="477" height="102" viewBox="0 0 477 102">
<g transform="translate(.5 .5)">
<path d="M 20 21 v 20 m 10 -20 v 20 m -10 -10 h 20.5"></path>
<g>
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<g>
<path d="M96 31h0"></path>
<path d="M380 31h0"></path>
<rect x="96" y="20" width="284" height="22"></rect>
<text x="238" y="35">sized_contents_with_subcontainers</text>
</g>
<path d="M380 31h10"></path>
</g>
<path d="M416 31h20"></path>
<path d="M40 31a10 10 0 0 1 10 10v20a10 10 0 0 0 10 10"></path>
<g>
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<g>
<path d="M70 71h0"></path>
<path d="M202 71h0"></path>
<rect x="70" y="60" width="132" height="22"></rect>
<text x="136" y="75">sized_contents</text>
</g>
<path d="M202 71h10"></path>
<g>
<path d="M212 71h0"></path>
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<path d="M212 71a10 10 0 0 0 10 -10v0a10 10 0 0 1 10 -10"></path>
<g>
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</g>
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</svg>
</div>
<h1><code>unsized_container</code></h1>
<div>
<svg class="railroad-diagram" width="493" height="132" viewBox="0 0 493 132">
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</svg>
</div>
<h1><code>sized_contents</code></h1>
<div>
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</svg>
</div>
<h1><code>sized_contents_with_subcontainers</code></h1>
<div>
<svg class="railroad-diagram" width="781" height="112" viewBox="0 0 781 112">
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<g>
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<g>
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<path d="M554 61a10 10 0 0 1 10 10v0a10 10 0 0 0 10 10"></path>
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<g>
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</g>
<path d="M574 81h10"></path>
<g>
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<path d="M620 81h10"></path>
</g>
<path d="M720 81a10 10 0 0 0 10 -10v-20a10 10 0 0 1 10 -10"></path>
</g>
<path d="M 740 41 h 20 m -10 -10 v 20 m 10 -20 v 20"></path>
</g>
</svg>
</div>
<h1><code>unsized_contents</code></h1>
<div>
<svg class="railroad-diagram" width="301" height="72" viewBox="0 0 301 72">
<g transform="translate(.5 .5)">
<path d="M 20 31 v 20 m 10 -20 v 20 m -10 -10 h 20.5"></path>
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<g>
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<g>
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<g>
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<g>
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<path d="M 260 41 h 20 m -10 -10 v 20 m 10 -20 v 20"></path>
</g>
</svg>
</div>
<h1><code>unsized_contents_with_subcontainers</code></h1>
<div>
<svg class="railroad-diagram" width="601" height="72" viewBox="0 0 601 72">
<g transform="translate(.5 .5)">
<path d="M 20 31 v 20 m 10 -20 v 20 m -10 -10 h 20.5"></path>
<g>
<path d="M40 41h0"></path>
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<path d="M40 41h20"></path>
<g>
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<path d="M396 21a10 10 0 0 1 10 10v0a10 10 0 0 0 10 10"></path>
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</div>
<h1><code>dimension</code></h1>
<div>
<svg class="railroad-diagram" width="513" height="212" viewBox="0 0 513 212">
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<g>
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<g>
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<g>
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