1 d3.csv.parse = function(text) {

     2   var header;

     3   return d3.csv.parseRows(text, function(row, i) {

     4     if (i) {

     5       var o = {}, j = -1, m = header.length;

     6       while (++j < m) o[header[j]] = row[j];

     7       return o;

     8     } else {

     9       header = row;

    10       return null;

    11     }

    12   });

    13 };

    14 

    15 d3.csv.parseRows = function(text, f) {

    16   var EOL = {}, // sentinel value for end-of-line

    17       EOF = {}, // sentinel value for end-of-file

    18       rows = [], // output rows

    19       re = /\r\n|[,\r\n]/g, // field separator regex

    20       n = 0, // the current line number

    21       t, // the current token

    22       eol; // is the current token followed by EOL?

    23 

    24   re.lastIndex = 0; // work-around bug in FF 3.6

    25 

    26   /** @private Returns the next token. */

    27   function token() {

    28     if (re.lastIndex >= text.length) return EOF; // special case: end of file

    29     if (eol) { eol = false; return EOL; } // special case: end of line

    30 

    31     // special case: quotes

    32     var j = re.lastIndex;

    33     if (text.charCodeAt(j) === 34) {

    34       var i = j;

    35       while (i++ < text.length) {

    36         if (text.charCodeAt(i) === 34) {

    37           if (text.charCodeAt(i + 1) !== 34) break;

    38           i++;

    39         }

    40       }

    41       re.lastIndex = i + 2;

    42       var c = text.charCodeAt(i + 1);

    43       if (c === 13) {

    44         eol = true;

    45         if (text.charCodeAt(i + 2) === 10) re.lastIndex++;

    46       } else if (c === 10) {

    47         eol = true;

    48       }

    49       return text.substring(j + 1, i).replace(/""/g, "\"");

    50     }

    51 

    52     // common case

    53     var m = re.exec(text);

    54     if (m) {

    55       eol = m[0].charCodeAt(0) !== 44;

    56       return text.substring(j, m.index);

    57     }

    58     re.lastIndex = text.length;

    59     return text.substring(j);

    60   }

    61 

    62   while ((t = token()) !== EOF) {

    63     var a = [];

    64     while ((t !== EOL) && (t !== EOF)) {

    65       a.push(t);

    66       t = token();

    67     }

    68     if (f && !(a = f(a, n++))) continue;

    69     rows.push(a);

    70   }

    71 

    72   return rows;

    73 };