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(function() {
'use strict';
var timeParsePatterns = [
// 9
{
re: /^\d{1,2}$/i,
handler: function(bits) {
if (bits[0].length === 1) {
return '0' + bits[0] + ':00';
} else {
return bits[0] + ':00';
}
}
},
// 13:00
{
re: /^\d{2}[:.]\d{2}$/i,
handler: function(bits) {
return bits[0].replace('.', ':');
}
},
// 9:00
{
re: /^\d[:.]\d{2}$/i,
handler: function(bits) {
return '0' + bits[0].replace('.', ':');
}
},
// 3 am / 3 a.m. / 3am
{
re: /^(\d+)\s*([ap])(?:.?m.?)?$/i,
handler: function(bits) {
var hour = parseInt(bits[1]);
if (hour === 12) {
hour = 0;
}
if (bits[2].toLowerCase() === 'p') {
if (hour === 12) {
hour = 0;
}
return (hour + 12) + ':00';
} else {
if (hour < 10) {
return '0' + hour + ':00';
} else {
return hour + ':00';
}
}
}
},
// 3.30 am / 3:15 a.m. / 3.00am
{
re: /^(\d+)[.:](\d{2})\s*([ap]).?m.?$/i,
handler: function(bits) {
var hour = parseInt(bits[1]);
var mins = parseInt(bits[2]);
if (mins < 10) {
mins = '0' + mins;
}
if (hour === 12) {
hour = 0;
}
if (bits[3].toLowerCase() === 'p') {
if (hour === 12) {
hour = 0;
}
return (hour + 12) + ':' + mins;
} else {
if (hour < 10) {
return '0' + hour + ':' + mins;
} else {
return hour + ':' + mins;
}
}
}
},
// noon
{
re: /^no/i,
handler: function(bits) {
return '12:00';
}
},
// midnight
{
re: /^mid/i,
handler: function(bits) {
return '00:00';
}
}
];
function parseTimeString(s) {
for (var i = 0; i < timeParsePatterns.length; i++) {
var re = timeParsePatterns[i].re;
var handler = timeParsePatterns[i].handler;
var bits = re.exec(s);
if (bits) {
return handler(bits);
}
}
return s;
}
window.parseTimeString = parseTimeString;
})();
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