TiddlyWiki5/js/Utils.js

/*
Various static utility functions.

This file is a bit of a dumping ground; the expectation is that most of these functions will be refactored.
*/

/*global require: false, exports: false, process: false */
"use strict";

var utils = exports;

// Pad a string to a certain length with zeros
utils.zeroPad = function(n,d)
{
	var s = n.toString();
	if(s.length < d)
		s = "000000000000000000000000000".substr(0,d-s.length) + s;
	return s;
};

// Convert a date to UTC YYYYMMDDHHMM string format
utils.convertToYYYYMMDDHHMM = function(date)
{
	return date.getUTCFullYear() + utils.zeroPad(date.getUTCMonth()+1,2) + utils.zeroPad(date.getUTCDate(),2) + utils.zeroPad(date.getUTCHours(),2) + utils.zeroPad(date.getUTCMinutes(),2);
};

// Convert a date to UTC YYYYMMDDHHMMSSMMM string format
utils.convertToYYYYMMDDHHMMSSMMM = function(date)
{
	return date.getUTCFullYear() + utils.zeroPad(date.getUTCMonth()+1,2) + utils.zeroPad(date.getUTCDate(),2) + utils.zeroPad(date.getUTCHours(),2) + utils.zeroPad(date.getUTCMinutes(),2) + utils.zeroPad(date.getUTCSeconds(),2) + utils.zeroPad(date.getUTCMilliseconds(),3) +"0";
};

// Create a UTC date from a YYYYMMDDHHMM format string
utils.convertFromYYYYMMDDHHMM = function(d)
{
	return utils.convertFromYYYYMMDDHHMMSSMMM(d.substr(0,12));
};

// Create a UTC date from a YYYYMMDDHHMMSS format string
utils.convertFromYYYYMMDDHHMMSS = function(d)
{
	return utils.convertFromYYYYMMDDHHMMSSMMM(d.substr(0,14));
};

// Create a UTC date from a YYYYMMDDHHMMSSMMM format string
utils.convertFromYYYYMMDDHHMMSSMMM = function(d)
{
	return new Date(Date.UTC(parseInt(d.substr(0,4),10),
			parseInt(d.substr(4,2),10)-1,
			parseInt(d.substr(6,2),10),
			parseInt(d.substr(8,2)||"00",10),
			parseInt(d.substr(10,2)||"00",10),
			parseInt(d.substr(12,2)||"00",10),
			parseInt(d.substr(14,3)||"000",10)));
};

// Convert & to "&amp;", < to "&lt;", > to "&gt;" and " to "&quot;"
utils.htmlEncode = function(s)
{
	return s.toString().replace(/&/mg,"&amp;").replace(/</mg,"&lt;").replace(/>/mg,"&gt;").replace(/\"/mg,"&quot;");
};

// Convert "&amp;" to &, "&lt;" to <, "&gt;" to > and "&quot;" to "
utils.htmlDecode = function(s)
{
	return s.toString().replace(/&lt;/mg,"<").replace(/&gt;/mg,">").replace(/&quot;/mg,"\"").replace(/&amp;/mg,"&");
};

// Converts all HTML entities to their character equivalents
utils.entityDecode = function(s) {
	var e = s.substr(1,s.length-2); // Strip the & and the ;
	if(e.charAt(0) == "#") {
		return String.fromCharCode(parseInt(e.substr(1),10));
	} else {
		var c = utils.htmlEntities[e];
		if(c) {
			return String.fromCharCode(c);
		} else {
			return null;
		}
	}
};

utils.htmlEntities = {quot:34, amp:38, apos:39, lt:60, gt:62, nbsp:160, iexcl:161, cent:162, pound:163, curren:164, yen:165, brvbar:166, sect:167, uml:168, copy:169, ordf:170, laquo:171, not:172, shy:173, reg:174, macr:175, deg:176, plusmn:177, sup2:178, sup3:179, acute:180, micro:181, para:182, middot:183, cedil:184, sup1:185, ordm:186, raquo:187, frac14:188, frac12:189, frac34:190, iquest:191, Agrave:192, Aacute:193, Acirc:194, Atilde:195, Auml:196, Aring:197, AElig:198, Ccedil:199, Egrave:200, Eacute:201, Ecirc:202, Euml:203, Igrave:204, Iacute:205, Icirc:206, Iuml:207, ETH:208, Ntilde:209, Ograve:210, Oacute:211, Ocirc:212, Otilde:213, Ouml:214, times:215, Oslash:216, Ugrave:217, Uacute:218, Ucirc:219, Uuml:220, Yacute:221, THORN:222, szlig:223, agrave:224, aacute:225, acirc:226, atilde:227, auml:228, aring:229, aelig:230, ccedil:231, egrave:232, eacute:233, ecirc:234, euml:235, igrave:236, iacute:237, icirc:238, iuml:239, eth:240, ntilde:241, ograve:242, oacute:243, ocirc:244, otilde:245, ouml:246, divide:247, oslash:248, ugrave:249, uacute:250, ucirc:251, uuml:252, yacute:253, thorn:254, yuml:255, OElig:338, oelig:339, Scaron:352, scaron:353, Yuml:376, fnof:402, circ:710, tilde:732, Alpha:913, Beta:914, Gamma:915, Delta:916, Epsilon:917, Zeta:918, Eta:919, Theta:920, Iota:921, Kappa:922, Lambda:923, Mu:924, Nu:925, Xi:926, Omicron:927, Pi:928, Rho:929, Sigma:931, Tau:932, Upsilon:933, Phi:934, Chi:935, Psi:936, Omega:937, alpha:945, beta:946, gamma:947, delta:948, epsilon:949, zeta:950, eta:951, theta:952, iota:953, kappa:954, lambda:955, mu:956, nu:957, xi:958, omicron:959, pi:960, rho:961, sigmaf:962, sigma:963, tau:964, upsilon:965, phi:966, chi:967, psi:968, omega:969, thetasym:977, upsih:978, piv:982, ensp:8194, emsp:8195, thinsp:8201, zwnj:8204, zwj:8205, lrm:8206, rlm:8207, ndash:8211, mdash:8212, lsquo:8216, rsquo:8217, sbquo:8218, ldquo:8220, rdquo:8221, bdquo:8222, dagger:8224, Dagger:8225, bull:8226, hellip:8230, permil:8240, prime:8242, Prime:8243, lsaquo:8249, rsaquo:8250, oline:8254, frasl:8260, euro:8364, image:8465, weierp:8472, real:8476, trade:8482, alefsym:8501, larr:8592, uarr:8593, rarr:8594, darr:8595, harr:8596, crarr:8629, lArr:8656, uArr:8657, rArr:8658, dArr:8659, hArr:8660, forall:8704, part:8706, exist:8707, empty:8709, nabla:8711, isin:8712, notin:8713, ni:8715, prod:8719, sum:8721, minus:8722, lowast:8727, radic:8730, prop:8733, infin:8734, ang:8736, and:8743, or:8744, cap:8745, cup:8746, int:8747, there4:8756, sim:8764, cong:8773, asymp:8776, ne:8800, equiv:8801, le:8804, ge:8805, sub:8834, sup:8835, nsub:8836, sube:8838, supe:8839, oplus:8853, otimes:8855, perp:8869, sdot:8901, lceil:8968, rceil:8969, lfloor:8970, rfloor:8971, lang:9001, rang:9002, loz:9674, spades:9824, clubs:9827, hearts:9829, diams:9830 };