rfc822-json

<!doctype html> <html lang="en"> <head> <title>Code coverage report for lib/header-tokenizer.js</title> <meta charset="utf-8"> <link rel="stylesheet" href="../prettify.css"> <style> body, html { margin:0; padding: 0; } body { font-family: Helvetica Neue, Helvetica,Arial; font-size: 10pt; } div.header, div.footer { background: #eee; padding: 1em; } div.header { z-index: 100; position: fixed; top: 0; border-bottom: 1px solid #666; width: 100%; } div.footer { border-top: 1px solid #666; } div.body { margin-top: 10em; } div.meta { font-size: 90%; text-align: center; } h1, h2, h3 { font-weight: normal; } h1 { font-size: 12pt; } h2 { font-size: 10pt; } pre { font-family: Consolas, Menlo, Monaco, monospace; margin: 0; padding: 0; line-height: 14px; font-size: 14px; -moz-tab-size: 2; -o-tab-size: 2; tab-size: 2; } div.path { font-size: 110%; } div.path a:link, div.path a:visited { color: #000; } table.coverage { border-collapse: collapse; margin:0; padding: 0 } table.coverage td { margin: 0; padding: 0; 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} .medium { background: #ffe87c !important; } .low { background: #fc8c84 !important; } span.cover-fill, span.cover-empty { display:inline-block; border:1px solid #444; background: white; height: 12px; } span.cover-fill { background: #ccc; border-right: 1px solid #444; } span.cover-empty { background: white; border-left: none; } span.cover-full { border-right: none !important; } pre.prettyprint { border: none !important; padding: 0 !important; margin: 0 !important; } .com { color: #999 !important; } </style> </head> <body> <div class="header high"> <h1>Code coverage report for lib/header-tokenizer.js</h1> <h2> Statements: 94.68% (89 / 94)      Branches: 89.58% (43 / 48)      Functions: 100% (6 / 6)      Lines: 94.68% (89 / 94)      </h2> <div class="path"><a href="../index.html">All files</a> » <a href="index.html">lib/</a> » header-tokenizer.js</div> </div> <div class="body"> <pre><table class="coverage"> <tr><td class="line-count">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230</td><td class="line-coverage">1 1       1   18     18 18       18 34 1           1       1               1                                                                         1 28 28 28     1                     16 7 7 7 7 7           1 28 4784                   1 4784 4784   748     76 76 76 672   671       1   748     3338 2883 455 103 352 351 351   1   3338     482 380 380 102 1 101         482     104 100 4 3 3 1   1 1 1       104     99         62 62 62 62 37 11 26   26 26       99     11         9 9 9 9 2 1 1 1   1 1 1       11       2               1  </td><td class="text"><pre class="prettyprint lang-js">var Stream = require('stream'); var util = require('util');   // Creates a reusable tokenizer which inherits from // the Stream module. function HeaderTokenizer() { // Call the Stream.Transform constructor Stream.Transform.call(this);   // Initialize state this.state = this.states.FIELD_NAME; this.currentToken = {type: 'field_name', value: ""};   // If someone attaches a new event listener for the 'done' event after // we are already in the DONE state, then just re-fire the event. this.on('newListener', function(name, listener) { if (name === 'done' && this.state === this.states.DONE) { listener(); } }); }   // Set up the inheritance util.inherits(HeaderTokenizer, Stream.Transform);   // Helper object to hold the regular expressions for matching various // character types. HeaderTokenizer.prototype.charTypes = { colon: /\:/, newline: /\n/, whitespace: /\s/, carraigeReturn: /\r/, printableAscii: /[\x21-\x7e]/ };   HeaderTokenizer.prototype.states = { // While processing a field name the tokenizer is in this state. FIELD_NAME: 'FIELD_NAME',   // While processing printable characters in the field body the tokenizer // is in this state. FIELD_BODY: 'FIELD_BODY',   // While processing whitespace characters in the field body the // tokenizer is in this state. All consecutive whitespace characters are // collapsed into a single space. WHITESPACE: 'WHITESPACE',   // While processing a <CR> in the field body the tokenizer is in this // state. CARRAIGE_RETURN: 'CARRAIGE_RETURN',   // While processing stuff after a <CR><LF> the tokenizer is in this // state. Note that header field bodies are allowed to "fold," meaning // that they can carry onto multiple lines as long as the "folded over" // portion is indented with at least one linear white space character. CRLF: 'CRLF',   // While processing stuff after a <CR><LF><CR> the tokenizer is in this // state. Significant because the tokenizer expects a <LF> and will emit // an error if it receives anything else. CRLF_CR: 'CRLF_CR',   // After consuming an empty line, the tokenizer emits a "done" event and // transitions to this trap state. TODO: deprecate the "done" event // since the message parser will probably never even send the header // tokenier the require CRLFCRLF characters required to get to this done // state. DONE: 'DONE' };   // Implements the Stream.Transform._transform method. HeaderTokenizer.prototype._transform = function(chunk, encoding, callback) { var str = chunk.toString('binary'); this.tokenize(str); callback(); };   HeaderTokenizer.prototype._flush = function(callback) { // Assert: we are done consuming the readable stream. Emit the current // token. If we have already entered the DONE state then do not emit // anything. We do this check because there are two cases when we want // to emit the 'done' event: // 1. After encountering <CR><LF><CR><LF> sequence in an email message. // When this happens, the HeaderTokenizer immediately enters the DONE // state. // 2. After encountering the end of a stream in an email message which // contained no message body (and thus potentially no <CR><LF><CR><LF> // sequence). if (this.state !== this.states.DONE) { this.state = this.states.DONE; this.currentToken.value = this.currentToken.value.trim(); this.emit('token', this.currentToken); this.emit('done'); callback(); } };   // The tokenize function simply takes in a string and feeds each character // to the HeaderTokenizer#receiveChar function. HeaderTokenizer.prototype.tokenize = function(str) { for (var i = 0; i < str.length; i++) { this.receiveChar(str[i]); } };   // This function is the heart of the HeaderTokenizer class. It consumes // the characters of an email message sequentially, emitting // "token" events when it has finished tokenizing header field names and // header field bodies. The "token" events have a // header token object of the form `{type:'field_body', value:'blah'}` as // the argument for their listener functions. HeaderTokenizer.prototype.receiveChar = function(ch) { var states = this.states; // Cache the states switch(this.state) { case this.states.FIELD_NAME: if (this.charTypes.colon.test(ch)) { // Colon delimits fieldName:fieldBody. Emit the current // field name token and set up the new field body token this.emit('token', this.currentToken); this.currentToken = {type: 'field_body', value: ""}; this.state = states.FIELD_BODY; } else if (this.charTypes.printableAscii.test(ch)) { // Append to the current field name this.currentToken.value += ch; } else { // Whitespace, or other non-printable ascii characters are // not allowed in the field names this.emit('error', new Error('Unexpected character "' + ch + '" while parsing field name.')); } break;   case this.states.FIELD_BODY: if (this.charTypes.printableAscii.test(ch)) { this.currentToken.value += ch; } else if (this.charTypes.carraigeReturn.test(ch)) { this.state = states.CARRAIGE_RETURN; } else if (this.charTypes.whitespace.test(ch)) { this.currentToken.value += " "; this.state = states.WHITESPACE; } else { this.emit('error', new Error('Unexpected character "' + ch + '" while parsing field body.')); } break;   case this.states.WHITESPACE: if (this.charTypes.printableAscii.test(ch)) { this.currentToken.value += ch; this.state = states.FIELD_BODY; } else if (this.charTypes.carraigeReturn.test(ch)) { this.state = states.CARRAIGE_RETURN; } else Eif (this.charTypes.whitespace.test(ch)) { // Do nothing; just eat more whitespace } else { this.emit('error', new Error('Unexpected character "' + ch + '" found while parsing field body.')); } break;   case this.states.CARRAIGE_RETURN: if (this.charTypes.newline.test(ch)) { this.state = states.CRLF; } else if (this.charTypes.whitespace.test(ch)) { this.currentToken.value += " "; this.state = states.WHITESPACE; } else Eif (this.charTypes.printableAscii.test(ch)) { // Push a space to account for the CR we read previously this.currentToken.value += " "; this.currentToken.value += ch; this.state = states.FIELD_BODY; } else { this.emit('error', new Error('Unexpected character "' + ch + '" found while parsing field body.')); } break;   case this.states.CRLF: if (this.charTypes.printableAscii.test(ch)) { // A printable character on the very next line means we just // finished the field body of one header and are now parsing // the field name of a new header. Trim any whitespace from // the beginning/end of the field body and emit. this.currentToken.value = this.currentToken.value.trim(); this.emit('token', this.currentToken); this.state = states.FIELD_NAME; this.currentToken = {type: 'field_name', value: ch}; } else if (this.charTypes.carraigeReturn.test(ch)) { this.state = states.CRLF_CR; } else Eif (this.charTypes.whitespace.test(ch)) { // This is just field body folding this.currentToken.value += " "; this.state = states.WHITESPACE; } else { this.emit('error', new Error('Unexpected character "' + ch + '" found while parsing field body.')); } break;   case this.states.CRLF_CR: if (this.charTypes.newline.test(ch)) { // We have already seen <CR><LF><CR>. Another <LF> means // this is the empty line separating header fields from the // message body. Emit the final field body token and a done // event. this.currentToken.value = this.currentToken.value.trim(); this.emit('token', this.currentToken); this.emit('done'); this.state = states.DONE; } else if (this.charTypes.whitespace.test(ch)) { this.currentToken.value += " "; this.state = states.WHITESPACE; } else Eif (this.charTypes.printableAscii.test(ch)) { // This is just field body folding this.currentToken.value += " "; this.currentToken.value += ch; this.state = states.FIELD_BODY; } else { this.emit('error', new Error('Unexpected character "' + ch + '" found while parsing field body.')); } break;   case this.states.DONE: // Trap state break;   default: // Should never get here, but in case we do... this.emit('error', new Error('Unknown state "' + this.state + '"')); } };   module.exports = HeaderTokenizer;  </pre></td></tr> </table></pre> </div> <div class="footer"> <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Jan 10 2014 22:59:04 GMT-0800 (PST)</div> </div> <script src="../prettify.js"></script> <script src="http://yui.yahooapis.com/3.6.0/build/yui/yui-min.js"></script> <script> YUI().use('datatable', function (Y) { var formatters = { pct: function (o) { o.className += o.record.get('classes')[o.column.key]; try { return o.value.toFixed(2) + '%'; } catch (ex) { return o.value + '%'; } }, html: function (o) { o.className += o.record.get('classes')[o.column.key]; return o.record.get(o.column.key + '_html'); } }, defaultFormatter = function (o) { o.className += o.record.get('classes')[o.column.key]; return o.value; }; function getColumns(theadNode) { var colNodes = theadNode.all('tr th'), cols = [], col; colNodes.each(function (colNode) { col = { key: colNode.getAttribute('data-col'), label: colNode.get('innerHTML') || ' ', sortable: !colNode.getAttribute('data-nosort'), className: colNode.getAttribute('class'), type: colNode.getAttribute('data-type'), allowHTML: colNode.getAttribute('data-html') === 'true' || colNode.getAttribute('data-fmt') === 'html' }; col.formatter = formatters[colNode.getAttribute('data-fmt')] || defaultFormatter; cols.push(col); }); return cols; } function getRowData(trNode, cols) { var tdNodes = trNode.all('td'), i, row = { classes: {} }, node, name; for (i = 0; i < cols.length; i += 1) { name = cols[i].key; node = tdNodes.item(i); row[name] = node.getAttribute('data-value') || node.get('innerHTML'); row[name + '_html'] = node.get('innerHTML'); row.classes[name] = node.getAttribute('class'); //Y.log('Name: ' + name + '; Value: ' + row[name]); if (cols[i].type === 'number') { row[name] = row[name] * 1; } } //Y.log(row); return row; } function getData(tbodyNode, cols) { var data = []; tbodyNode.all('tr').each(function (trNode) { data.push(getRowData(trNode, cols)); }); return data; } function replaceTable(node) { if (!node) { return; } var cols = getColumns(node.one('thead')), data = getData(node.one('tbody'), cols), table, parent = node.get('parentNode'); table = new Y.DataTable({ columns: cols, data: data, sortBy: 'file' }); parent.set('innerHTML', ''); table.render(parent); } Y.on('domready', function () { replaceTable(Y.one('div.coverage-summary table')); if (typeof prettyPrint === 'function') { prettyPrint(); } }); }); </script> </body> </html>