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+ div.appendChild(a); + div.className = "toclevel" + entry.toclevel; + toc.appendChild(div); + } + if (entries.length == 0) + toc.parentNode.removeChild(toc); +}, + + +///////////////////////////////////////////////////////////////////// +// Footnotes generator +///////////////////////////////////////////////////////////////////// + +/* Based on footnote generation code from: + * http://www.brandspankingnew.net/archive/2005/07/format_footnote.html + */ + +footnotes: function () { + var cont = document.getElementById("content"); + var noteholder = document.getElementById("footnotes"); + var spans = cont.getElementsByTagName("span"); + var refs = {}; + var n = 0; + for (i=0; i<spans.length; i++) { + if (spans[i].className == "footnote") { + n++; + // Use [\s\S] in place of . so multi-line matches work. + // Because JavaScript has no s (dotall) regex flag. + note = spans[i].innerHTML.match(/\s*\[([\s\S]*)]\s*/)[1]; + noteholder.innerHTML += + "<div class='footnote' id='_footnote_" + n + "'>" + + "<a href='#_footnoteref_" + n + "' title='Return to text'>" + + n + "</a>. " + note + "</div>"; + spans[i].innerHTML = + "[<a id='_footnoteref_" + n + "' href='#_footnote_" + n + + "' title='View footnote' class='footnote'>" + n + "</a>]"; + var id =spans[i].getAttribute("id"); + if (id != null) refs["#"+id] = n; + } + } + if (n == 0) + noteholder.parentNode.removeChild(noteholder); + else { + // Process footnoterefs. + for (i=0; i<spans.length; i++) { + if (spans[i].className == "footnoteref") { + var href = spans[i].getElementsByTagName("a")[0].getAttribute("href"); + href = href.match(/#.*/)[0]; // Because IE return full URL. + n = refs[href]; + spans[i].innerHTML = + "[<a href='#_footnote_" + n + + "' title='View footnote' class='footnote'>" + n + "</a>]"; + } + } + } +} + +} +/*]]>*/ +</script> +</head> +<body> +<div id="header"> +<h1>Documentation Common to Pack and Http Protocols</h1> +</div> +<div id="content"> +<h2 id="_abnf_notation">ABNF Notation</h2> +<div class="sectionbody"> +<div class="paragraph"><p>ABNF notation as described by RFC 5234 is used within the protocol documents, +except the following replacement core rules are used:</p></div> +<div class="listingblock"> +<div class="content"> +<pre><tt> HEXDIG = DIGIT / "a" / "b" / "c" / "d" / "e" / "f"</tt></pre> +</div></div> +<div class="paragraph"><p>We also define the following common rules:</p></div> +<div class="listingblock"> +<div class="content"> +<pre><tt> NUL = %x00 + zero-id = 40*"0" + obj-id = 40*(HEXDIGIT) + + refname = "HEAD" + refname /= "refs/" <see discussion below></tt></pre> +</div></div> +<div class="paragraph"><p>A refname is a hierarchical octet string beginning with "refs/" and +not violating the <em>git-check-ref-format</em> command’s validation rules. +More specifically, they:</p></div> +<div class="olist arabic"><ol class="arabic"> +<li> +<p> +They can include slash <tt>/</tt> for hierarchical (directory) + grouping, but no slash-separated component can begin with a + dot <tt>.</tt>. +</p> +</li> +<li> +<p> +They must contain at least one <tt>/</tt>. This enforces the presence of a + category like <tt>heads/</tt>, <tt>tags/</tt> etc. but the actual names are not + restricted. +</p> +</li> +<li> +<p> +They cannot have two consecutive dots <tt>..</tt> anywhere. +</p> +</li> +<li> +<p> +They cannot have ASCII control characters (i.e. bytes whose + values are lower than \040, or \177 <tt>DEL</tt>), space, tilde <tt>~</tt>, + caret <tt>^</tt>, colon <tt>:</tt>, question-mark <tt>?</tt>, asterisk <tt>*</tt>, + or open bracket <tt>[</tt> anywhere. +</p> +</li> +<li> +<p> +They cannot end with a slash <tt>/</tt> nor a dot <tt>.</tt>. +</p> +</li> +<li> +<p> +They cannot end with the sequence <tt>.lock</tt>. +</p> +</li> +<li> +<p> +They cannot contain a sequence <tt>@{</tt>. +</p> +</li> +<li> +<p> +They cannot contain a <tt>\\</tt>. +</p> +</li> +</ol></div> +</div> +<h2 id="_pkt_line_format">pkt-line Format</h2> +<div class="sectionbody"> +<div class="paragraph"><p>Much (but not all) of the payload is described around pkt-lines.</p></div> +<div class="paragraph"><p>A pkt-line is a variable length binary string. The first four bytes +of the line, the pkt-len, indicates the total length of the line, +in hexadecimal. The pkt-len includes the 4 bytes used to contain +the length’s hexadecimal representation.</p></div> +<div class="paragraph"><p>A pkt-line MAY contain binary data, so implementors MUST ensure +pkt-line parsing/formatting routines are 8-bit clean.</p></div> +<div class="paragraph"><p>A non-binary line SHOULD BE terminated by an LF, which if present +MUST be included in the total length.</p></div> +<div class="paragraph"><p>The maximum length of a pkt-line’s data component is 65520 bytes. +Implementations MUST NOT send pkt-line whose length exceeds 65524 +(65520 bytes of payload + 4 bytes of length data).</p></div> +<div class="paragraph"><p>Implementations SHOULD NOT send an empty pkt-line ("0004").</p></div> +<div class="paragraph"><p>A pkt-line with a length field of 0 ("0000"), called a flush-pkt, +is a special case and MUST be handled differently than an empty +pkt-line ("0004").</p></div> +<div class="listingblock"> +<div class="content"> +<pre><tt> pkt-line = data-pkt / flush-pkt + + data-pkt = pkt-len pkt-payload + pkt-len = 4*(HEXDIG) + pkt-payload = (pkt-len - 4)*(OCTET) + + flush-pkt = "0000"</tt></pre> +</div></div> +<div class="paragraph"><p>Examples (as C-style strings):</p></div> +<div class="listingblock"> +<div class="content"> +<pre><tt> pkt-line actual value + --------------------------------- + "0006a\n" "a\n" + "0005a" "a" + "000bfoobar\n" "foobar\n" + "0004" ""</tt></pre> +</div></div> +</div> +</div> +<div id="footnotes"><hr /></div> +<div id="footer"> +<div id="footer-text"> +Last updated 2012-05-02 15:00:44 PDT +</div> +</div> +</body> +</html> 