/
ext.sorting.js
110 lines (90 loc) · 2.48 KB
/
ext.sorting.js
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var __numericReplace = function ( d, decimalPlace, re1, re2 ) {
if ( d !== 0 && (!d || d === '-') ) {
return -Infinity;
}
// If a decimal place other than `.` is used, it needs to be given to the
// function so we can detect it and replace with a `.` which is the only
// decimal place Javascript recognises - it is not locale aware.
if ( decimalPlace ) {
d = _numToDecimal( d, decimalPlace );
}
if ( d.replace ) {
if ( re1 ) {
d = d.replace( re1, '' );
}
if ( re2 ) {
d = d.replace( re2, '' );
}
}
return d * 1;
};
// Add the numeric 'deformatting' functions for sorting and search. This is done
// in a function to provide an easy ability for the language options to add
// additional methods if a non-period decimal place is used.
function _addNumericSort ( decimalPlace ) {
$.each(
{
// Plain numbers
"num": function ( d ) {
return __numericReplace( d, decimalPlace );
},
// Formatted numbers
"num-fmt": function ( d ) {
return __numericReplace( d, decimalPlace, _re_formatted_numeric );
},
// HTML numeric
"html-num": function ( d ) {
return __numericReplace( d, decimalPlace, _re_html );
},
// HTML numeric, formatted
"html-num-fmt": function ( d ) {
return __numericReplace( d, decimalPlace, _re_html, _re_formatted_numeric );
}
},
function ( key, fn ) {
// Add the ordering method
_ext.type.order[ key+decimalPlace+'-pre' ] = fn;
// For HTML types add a search formatter that will strip the HTML
if ( key.match(/^html\-/) ) {
_ext.type.search[ key+decimalPlace ] = _ext.type.search.html;
}
}
);
}
// Default sort methods
$.extend( _ext.type.order, {
// Dates
"date-pre": function ( d ) {
return Date.parse( d ) || -Infinity;
},
// html
"html-pre": function ( a ) {
return _empty(a) ?
'' :
a.replace ?
a.replace( /<.*?>/g, "" ).toLowerCase() :
a+'';
},
// string
"string-pre": function ( a ) {
// This is a little complex, but faster than always calling toString,
// http://jsperf.com/tostring-v-check
return _empty(a) ?
'' :
typeof a === 'string' ?
a.toLowerCase() :
! a.toString ?
'' :
a.toString();
},
// string-asc and -desc are retained only for compatibility with the old
// sort methods
"string-asc": function ( x, y ) {
return ((x < y) ? -1 : ((x > y) ? 1 : 0));
},
"string-desc": function ( x, y ) {
return ((x < y) ? 1 : ((x > y) ? -1 : 0));
}
} );
// Numeric sorting types - order doesn't matter here
_addNumericSort( '' );