<!DOCTYPE html>
<title>TEST</title>
<h1>CSV</h1>
<script>
var Q$MSXML2$XMLHttpRequest =
(function () {
var I = arguments.length;
var i;
for (i = 0; i < I; i++) {
try {
arguments[i] ();
return arguments[i];
} catch (err) { ; }
}
return null;
}) (
function () { return new ActiveXObject ('Msxml2.XMLHTTP.6.0'); },
function () { return new ActiveXObject ('Msxml2.XMLHTTP.3.0'); }
);
if ('undefined' === typeof XMLHttpRequest)
eval ('var XMLHttpRequest = Q$MSXML2$XMLHttpRequest; ');
var Q$CSV$parseCSV =
(function () {
return function (stringData, strict, separator) {
if ((separator || (separator = ',')) === ',' || separator === '\t') {
var isWellFormed = strict ? isStrict : isLoose;
var pattern = new RegExp ('^(?:' + separator +
'|(?:\\r\\n|\\r|\\n)' +
'|"(?:""|[^"])*"' +
'|[^\\r\\n"' + separator + '][^\\r\\n' + separator + ']*' +
')');
var flength = 0;
var findex = 0;
var fields = [ '' ];
var records = [ fields ];
var token;
for (
stringData = trim (stringData);
(token = pattern.exec (stringData)) && (token = token[0]);
stringData = stringData.slice (token.length)
) {
switch (token.charAt (0)) {
case separator :
fields[++findex] = '';
break;
case '\r' :
case '\n' :
if (! isWellFormed (flength || (flength = findex), findex)) {
throw new Error ('malformed CSV.');
}
fields = records[records.length] = [''], findex = 0;
break;
case '"' :
fields[findex] = token.slice (1, -1).replace (/""/g, '"');
break;
default :
fields[findex] = token;
break;
}
}
if (stringData === '' && isWellFormed (flength, findex)) {
return records;
}
}
throw new Error ('malformed CSV.');
};
function trim (str) {
return String (str).replace (/^[\r\n]+|[\r\n]+$/g, '');
}
function isStrict (flength, findex) {
return flength === findex;
}
function isLoose () {
return true;
}
}) ();
var getFile =
(function (fileName) {
var text = '';
var req = new XMLHttpRequest;
if (req) {
req.open ('GET', fileName, false);
req.send (null);
text = (200 == req.status)
? req.responseText
: '';
req = null;
}
return text;
});
(function () {
var REG_CSV_FRAGMENT =
(function () {
var DIGIT = '[\\x30-\\x39]';
var TEXTDATA = '[\\x23-\\x2B\\x2D-\\x3C\\x3E-\\x7E]';
var rownum = DIGIT + '+';
var column = '(?:' + DIGIT + '+' + '|' + TEXTDATA + '+)';
var rowspec = '(?:\\*' + '|' + rownum + ')';
var colspec = column;
var val = TEXTDATA + '+';
var col = TEXTDATA + '+';
var kvpairs = '(?:' + col + '=' + val + '(?:,|$)){1,}';
var wheresel = '(?:(where):' + '(' + kvpairs + '))';
var colsel = '(?:(col):' + '(' + colspec + '))';
var rowsel = '(?:(row):' + '(' + rowspec + '))';
var headersel = '(head)';
return new RegExp ('^#?(?:' + headersel +
'|' + wheresel +
'|' + colsel +
'|' + rowsel + ')$');
}) ();
function decomposition (fgmt) {
return REG_CSV_FRAGMENT.exec (fgmt);
}
function fileLoad (fileName) {
this.csv = (fileName)
? Q$CSV$parseCSV (getFile (fileName))
: null;
return !! (this.csv);
}
function getHeader () {
return this.csv[0].slice (0);
}
function getBody () {
return this.csv.slice (1);
}
function CSVFragment () {
this.csv = [];
}
function _getIdentifiers (cmd, parm) {
var no;
var pr;
var hd;
var cond;
var conds = [];
var hideList = [];
var body = getBody.call (this);
switch (cmd) {
case 'head' :
return getHeader.call (this);
case 'where' :
hd = getHeader.call (this);
conds = parm.split (',')
.map (
function (cond) {
return cond.split ('=', 2);
}
);
for (var i = 0; cond = conds[i]; i++) {
no = hd.indexOf (cond[0]);
if (-1 === no) {
throw new Error ('Not found field name.');
}
hideList[no] = true;
pr = { no : no, val : cond[1] };
body = body.filter (
function (cells) {
return (cells[this.no] === this.val);
},
pr
);
}
return [getHeader.call (this)].concat (body)
.map (
function (cells) {
return cells.filter (
function (_, idx) {
return ! (this[idx]);
},
this
);
},
hideList
);
case 'col' :
if (isNaN (parm)) {
hd = getHeader.call (this);
no = hd.indexOf (parm);
if (-1 === no) {
throw new Error ('Not found field name.');
}
pr = { no : no };
}
else {
pr = { no : Number (parm) };
}
return getBody.call (this)
.map (
function (cells) {
return cells [ this.no ];
},
pr);
case 'row' :
if (isNaN (parm)) {
if ('*' !== parm) {
throw new Error ('Syntax Error : row');
}
return getBody.call (this);
}
else {
return getBody.call (this) [ Number (parm) ];
}
default :
throw new Error ();
}
}
function getIdentifiers (fgmt) {
var op = (fgmt) ? decomposition (fgmt): null;
if (op){
return _getIdentifiers.call (
this,
op[1] || op[2] || op[4] || op[6],
op[3] || op[5] || op[7]);
}
else {
throw new Error ('Syntax error : fragument.');
}
}
function create (url) {
var obj;
if (url) {
obj = new CSVFragment;
if (fileLoad.call (obj, url)) {
return obj;
}
}
return null;
}
CSVFragment.prototype.getIdentifiers = getIdentifiers;
CSVFragment.create = create;
function getCSVData (url) {
if (0 === arguments.length)
return null;
var fgmt = /^[^:/?#]+#(.+)$/.exec (url);
var obj = CSVFragment.create (url);
return (fgmt)
? obj.getIdentifiers (fgmt[1])
: null;
}
this.getCSVFVragmentIdentifiers = getCSVData;
}) ();
alert (getCSVFVragmentIdentifiers ('sample.csv#where:date=2011-01-01').join("\n"));
alert (getCSVFVragmentIdentifiers ('sample.csv#where:date=2011-01-01,place=Galway').join("\n"));
</script>
<ul>
<li>http:
<li>http:
<li>http:
</ul>
