sjs/strftime
1
0
Fork 0
mirror of https://github.com/samsonjs/strftime.git synced 2026-04-27 14:57:37 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Optimization of inlining

Browse source
This commit is contained in:
B~Vladi 2014-05-15 02:22:02 +04:00
parent 895a3361b0
commit 05700a7ded
1 changed files with 44 additions and 58 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

102
strftime.js
View file

@ -43,34 +43,29 @@
// - locale [object] an object with the same structure as DefaultLocale // - locale [object] an object with the same structure as DefaultLocale
// - timezone [number] timezone offset in minutes from GMT // - timezone [number] timezone offset in minutes from GMT
function _strftime(format, date, locale, options) { function _strftime(format, date, locale, options) {
var matches; var m;
var _options = options || {}; var o = options || {};
var _locale = locale; var l = locale;
var _date = date; var d = date;
var timestamp; var i = 0;
var index = 0; var r = '';
var result = ''; var re = /%([-_0]?)(.)/g;
var regExp = /%([-_0]?)(.)/g;
// date and locale are optional so check if date is really the locale if (d && !isDate(d)) {
if (_date && !isDate(_date)) { l = d;
_locale = _date; d = null;
_date = undefined;
} }
_date = _date || new Date(); l = l || DefaultLocale;
timestamp = _date.getTime(); l.formats = l.formats || {};
_locale = _locale || DefaultLocale; d = fixTimeZone(d || new Date(), o);
_locale.formats = _locale.formats || {};
_date = fixTimeZone(_date, _options); while (m = re.exec(format)) {
r += format.substring(i, m.index) + match(m, d, l, d.getTime(), o);
while (matches = regExp.exec(format)) { i = m.index + m[0].length;
result += format.substring(index, matches.index) + processing(matches, _date, _locale, timestamp, _options);
index = matches.index + matches[0].length;
} }
return result; return r;
} }
var mask = { var mask = {
@ -201,38 +196,29 @@
} }
}; };
function processing(match, date, locale, timestamp, options) { // Most of the specifiers supported by C's strftime, and some from Ruby.
var padding = match[1]; // Some other syntax extensions from Ruby are supported: %-, %_, and %0
var char = match[2]; // to pad with nothing, space, or zero (respectively).
function match(match, date, locale, timestamp, options) {
var p = match[1];
var c = match[2];
// Most of the specifiers supported by C's strftime, and some from Ruby. if (p) {
// Some other syntax extensions from Ruby are supported: %-, %_, and %0 switch (p) {
// to pad with nothing, space, or zero (respectively).
if (padding) {
switch (padding) {
// omit padding
case '-': case '-':
padding = ''; p = '';
break; break;
// pad with space
case '_': case '_':
padding = ' '; p = ' ';
break; break;
// pad with zero
case '0': case '0':
break; break;
// unrecognized, return the format
default: default:
return match[0]; return match[0];
} }
} else {
padding = null;
} }
return mask[char] ? mask[char](padding, date, locale, timestamp, options) : char; return mask[c] ? mask[c](p, date, locale, timestamp, options) : c;
} }
function dateToUTC(d) { function dateToUTC(d) {
@ -241,7 +227,7 @@
// Default padding is '0' and default length is 2, both are optional. // Default padding is '0' and default length is 2, both are optional.
function pad(n, padding, length) { function pad(n, padding, length) {
var _padding = padding == null ? '0' : padding; var _padding = padding ? '0' : padding;
var _n = String(n); var _n = String(n);
var _length = length || 2; var _length = length || 2;
@ -317,29 +303,29 @@
// ISO 8601 format timezone string, [-+]HHMM // ISO 8601 format timezone string, [-+]HHMM
// Convert to the number of minutes and it'll be applied to the date below. // Convert to the number of minutes and it'll be applied to the date below.
function fixTimeZone(date, options) { function fixTimeZone(date, opt) {
var _date = date; var d = date;
var timeZone = options.timezone; var tz = opt.timezone;
var tzType = typeof timeZone; var tzType = typeof tz;
if (options.utc || tzType === 'number' || tzType === 'string') { if (opt.utc || tzType == 'number' || tzType == 'string') {
_date = dateToUTC(_date); d = dateToUTC(d);
} }
if (timeZone) { if (tz) {
if (tzType === 'string') { if (tzType == 'string') {
var sign = timeZone[0] === '-' ? -1 : 1; var s = tz[0] === '-' ? -1 : 1;
var hours = parseInt(timeZone.slice(1, 3), 10); var h = parseInt(tz.slice(1, 3), 10);
var mins = parseInt(timeZone.slice(3, 5), 10); var m = parseInt(tz.slice(3, 5), 10);
timeZone = sign * (60 * hours) + mins; tz = s * (60 * h) + m;
} }
_date = new Date(_date.getTime() + (timeZone * 60000)); d = new Date(d.getTime() + (tz * 60000));
options.timezone = timeZone; opt.timezone = tz;
} }
return _date; return d;
} }
namespace.strftime = strftime; namespace.strftime = strftime;