64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
/*! Distance parser
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* This parser will parser numbers like 5'10" (5 foot 10 inches)
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* and 31½ into sortable values.
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* Demo: http://jsfiddle.net/Mottie/abkNM/154/
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*/
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/*global jQuery: false */
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;(function($){
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"use strict";
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var ts = $.tablesorter;
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ts.symbolRegex = /[\u215b\u215c\u215d\u215e\u00bc\u00bd\u00be]/g;
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ts.processFractions = function(n, table) {
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if (n) {
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var t, p = 0;
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n = $.trim(n.replace(/\"/,''));
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// look for a space in the first part of the number: "10 3/4" and save the "10"
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if (/\s/.test(n)) {
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p = ts.formatFloat(n.split(' ')[0], table);
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// remove stuff to the left of the space
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n = $.trim(n.substring(n.indexOf(' '), n.length));
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}
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// look for a "/" to calculate fractions
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if (/\//g.test(n)) {
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t = n.split('/');
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// turn 3/4 into .75; make sure we don't divide by zero
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n = p + parseInt(t[0], 10) / parseInt(t[1] || 1, 10);
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// look for fraction symbols
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} else if (ts.symbolRegex.test(n)) {
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n = p + n.replace(ts.symbolRegex, function(m){
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return {
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'\u215b' : '.125', // 1/8
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'\u215c' : '.375', // 3/8
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'\u215d' : '.625', // 5/8
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'\u215e' : '.875', // 7/8
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'\u00bc' : '.25', // 1/4
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'\u00bd' : '.5', // 1/2
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'\u00be' : '.75' // 3/4
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}[m];
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});
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}
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}
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return n || 0;
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};
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$.tablesorter.addParser({
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id: 'distance',
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is: function() {
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// return false so this parser is not auto detected
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return false;
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},
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format: function(s, table) {
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if (s === '') { return ''; }
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// look for feet symbol = '
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// very generic test to catch 1.1', 1 1/2' and 1½'
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var d = (/^\s*\S*(\s+\S+)?\s*\'/.test(s)) ? s.split("'") : [0,s],
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f = ts.processFractions(d[0], table), // feet
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i = ts.processFractions(d[1], table); // inches
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return (/[\'\"]/).test(s) ? parseFloat(f) + (parseFloat(i)/12 || 0) : parseFloat(f) + parseFloat(i);
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},
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type: 'numeric'
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});
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})(jQuery);
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