mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-18 14:10:28 +00:00
00f35fe41a
They don’t get automatically decoded when the browser reads the
resulting HTML. So, instead, we’ll solve
1e9e1a1fdc by switching to double quotes
for attribute values.
625 lines
15 KiB
JavaScript
625 lines
15 KiB
JavaScript
/*\
|
|
title: $:/core/modules/utils/utils.js
|
|
type: application/javascript
|
|
module-type: utils
|
|
|
|
Various static utility functions.
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
/*
|
|
Display a warning, in colour if we're on a terminal
|
|
*/
|
|
exports.warning = function(text) {
|
|
console.log($tw.node ? "\x1b[1;33m" + text + "\x1b[0m" : text);
|
|
}
|
|
|
|
/*
|
|
Trim whitespace from the start and end of a string
|
|
Thanks to Steven Levithan, http://blog.stevenlevithan.com/archives/faster-trim-javascript
|
|
*/
|
|
exports.trim = function(str) {
|
|
if(typeof str === "string") {
|
|
return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
|
|
} else {
|
|
return str;
|
|
}
|
|
};
|
|
|
|
/*
|
|
Return the number of keys in an object
|
|
*/
|
|
exports.count = function(object) {
|
|
var s = 0;
|
|
$tw.utils.each(object,function() {s++;});
|
|
return s;
|
|
};
|
|
|
|
/*
|
|
Check if an array is equal by value and by reference.
|
|
*/
|
|
exports.isArrayEqual = function(array1,array2) {
|
|
if(array1 === array2) {
|
|
return true;
|
|
}
|
|
array1 = array1 || [];
|
|
array2 = array2 || [];
|
|
if(array1.length !== array2.length) {
|
|
return false;
|
|
}
|
|
return array1.every(function(value,index) {
|
|
return value === array2[index];
|
|
});
|
|
};
|
|
|
|
/*
|
|
Push entries onto an array, removing them first if they already exist in the array
|
|
array: array to modify (assumed to be free of duplicates)
|
|
value: a single value to push or an array of values to push
|
|
*/
|
|
exports.pushTop = function(array,value) {
|
|
var t,p;
|
|
if($tw.utils.isArray(value)) {
|
|
// Remove any array entries that are duplicated in the new values
|
|
if(value.length !== 0) {
|
|
if(array.length !== 0) {
|
|
if(value.length < array.length) {
|
|
for(t=0; t<value.length; t++) {
|
|
p = array.indexOf(value[t]);
|
|
if(p !== -1) {
|
|
array.splice(p,1);
|
|
}
|
|
}
|
|
} else {
|
|
for(t=array.length-1; t>=0; t--) {
|
|
p = value.indexOf(array[t]);
|
|
if(p !== -1) {
|
|
array.splice(t,1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Push the values on top of the main array
|
|
array.push.apply(array,value);
|
|
}
|
|
} else {
|
|
p = array.indexOf(value);
|
|
if(p !== -1) {
|
|
array.splice(p,1);
|
|
}
|
|
array.push(value);
|
|
}
|
|
return array;
|
|
};
|
|
|
|
/*
|
|
Remove entries from an array
|
|
array: array to modify
|
|
value: a single value to remove, or an array of values to remove
|
|
*/
|
|
exports.removeArrayEntries = function(array,value) {
|
|
var t,p;
|
|
if($tw.utils.isArray(value)) {
|
|
for(t=0; t<value.length; t++) {
|
|
p = array.indexOf(value[t]);
|
|
if(p !== -1) {
|
|
array.splice(p,1);
|
|
}
|
|
}
|
|
} else {
|
|
p = array.indexOf(value);
|
|
if(p !== -1) {
|
|
array.splice(p,1);
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
Check whether any members of a hashmap are present in another hashmap
|
|
*/
|
|
exports.checkDependencies = function(dependencies,changes) {
|
|
var hit = false;
|
|
$tw.utils.each(changes,function(change,title) {
|
|
if($tw.utils.hop(dependencies,title)) {
|
|
hit = true;
|
|
}
|
|
});
|
|
return hit;
|
|
};
|
|
|
|
exports.extend = function(object /* [, src] */) {
|
|
$tw.utils.each(Array.prototype.slice.call(arguments, 1), function(source) {
|
|
if(source) {
|
|
for(var property in source) {
|
|
object[property] = source[property];
|
|
}
|
|
}
|
|
});
|
|
return object;
|
|
};
|
|
|
|
exports.deepCopy = function(object) {
|
|
var result,t;
|
|
if($tw.utils.isArray(object)) {
|
|
// Copy arrays
|
|
result = object.slice(0);
|
|
} else if(typeof object === "object") {
|
|
result = {};
|
|
for(t in object) {
|
|
if(object[t] !== undefined) {
|
|
result[t] = $tw.utils.deepCopy(object[t]);
|
|
}
|
|
}
|
|
} else {
|
|
result = object;
|
|
}
|
|
return result;
|
|
};
|
|
|
|
exports.extendDeepCopy = function(object,extendedProperties) {
|
|
var result = $tw.utils.deepCopy(object),t;
|
|
for(t in extendedProperties) {
|
|
if(extendedProperties[t] !== undefined) {
|
|
result[t] = $tw.utils.deepCopy(extendedProperties[t]);
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
|
|
exports.slowInSlowOut = function(t) {
|
|
return (1 - ((Math.cos(t * Math.PI) + 1) / 2));
|
|
};
|
|
|
|
exports.formatDateString = function(date,template) {
|
|
var result = "",
|
|
t = template,
|
|
matches = [
|
|
[/^0hh12/, function() {
|
|
return $tw.utils.pad($tw.utils.getHours12(date));
|
|
}],
|
|
[/^wYYYY/, function() {
|
|
return $tw.utils.getYearForWeekNo(date);
|
|
}],
|
|
[/^hh12/, function() {
|
|
return $tw.utils.getHours12(date);
|
|
}],
|
|
[/^DDth/, function() {
|
|
return date.getDate() + $tw.utils.getDaySuffix(date);
|
|
}],
|
|
[/^YYYY/, function() {
|
|
return date.getFullYear();
|
|
}],
|
|
[/^0hh/, function() {
|
|
return $tw.utils.pad(date.getHours());
|
|
}],
|
|
[/^0mm/, function() {
|
|
return $tw.utils.pad(date.getMinutes());
|
|
}],
|
|
[/^0ss/, function() {
|
|
return $tw.utils.pad(date.getSeconds());
|
|
}],
|
|
[/^0DD/, function() {
|
|
return $tw.utils.pad(date.getDate());
|
|
}],
|
|
[/^0MM/, function() {
|
|
return $tw.utils.pad(date.getMonth()+1);
|
|
}],
|
|
[/^0WW/, function() {
|
|
return $tw.utils.pad($tw.utils.getWeek(date));
|
|
}],
|
|
[/^ddd/, function() {
|
|
return $tw.language.getString("Date/Short/Day/" + date.getDay());
|
|
}],
|
|
[/^mmm/, function() {
|
|
return $tw.language.getString("Date/Short/Month/" + (date.getMonth() + 1));
|
|
}],
|
|
[/^DDD/, function() {
|
|
return $tw.language.getString("Date/Long/Day/" + date.getDay());
|
|
}],
|
|
[/^MMM/, function() {
|
|
return $tw.language.getString("Date/Long/Month/" + (date.getMonth() + 1));
|
|
}],
|
|
[/^TZD/, function() {
|
|
var tz = date.getTimezoneOffset(),
|
|
atz = Math.abs(tz);
|
|
return (tz < 0 ? '+' : '-') + $tw.utils.pad(Math.floor(atz / 60)) + ':' + $tw.utils.pad(atz % 60);
|
|
}],
|
|
[/^wYY/, function() {
|
|
return $tw.utils.pad($tw.utils.getYearForWeekNo(date) - 2000);
|
|
}],
|
|
[/^[ap]m/, function() {
|
|
return $tw.utils.getAmPm(date).toLowerCase();
|
|
}],
|
|
[/^hh/, function() {
|
|
return date.getHours();
|
|
}],
|
|
[/^mm/, function() {
|
|
return date.getMinutes();
|
|
}],
|
|
[/^ss/, function() {
|
|
return date.getSeconds();
|
|
}],
|
|
[/^[AP]M/, function() {
|
|
return $tw.utils.getAmPm(date).toUpperCase();
|
|
}],
|
|
[/^DD/, function() {
|
|
return date.getDate();
|
|
}],
|
|
[/^MM/, function() {
|
|
return date.getMonth() + 1;
|
|
}],
|
|
[/^WW/, function() {
|
|
return $tw.utils.getWeek(date);
|
|
}],
|
|
[/^YY/, function() {
|
|
return $tw.utils.pad(date.getFullYear() - 2000);
|
|
}]
|
|
];
|
|
while(t.length){
|
|
var matchString = "";
|
|
$tw.utils.each(matches, function(m) {
|
|
var match = m[0].exec(t);
|
|
if(match) {
|
|
matchString = m[1].call();
|
|
t = t.substr(match[0].length);
|
|
return false;
|
|
}
|
|
});
|
|
if(matchString) {
|
|
result += matchString;
|
|
} else {
|
|
result += t.charAt(0);
|
|
t = t.substr(1);
|
|
}
|
|
}
|
|
result = result.replace(/\\(.)/g,"$1");
|
|
return result;
|
|
};
|
|
|
|
exports.getAmPm = function(date) {
|
|
return $tw.language.getString("Date/Period/" + (date.getHours() >= 12 ? "pm" : "am"));
|
|
};
|
|
|
|
exports.getDaySuffix = function(date) {
|
|
return $tw.language.getString("Date/DaySuffix/" + date.getDate());
|
|
};
|
|
|
|
exports.getWeek = function(date) {
|
|
var dt = new Date(date.getTime());
|
|
var d = dt.getDay();
|
|
if(d === 0) {
|
|
d = 7; // JavaScript Sun=0, ISO Sun=7
|
|
}
|
|
dt.setTime(dt.getTime() + (4 - d) * 86400000);// shift day to Thurs of same week to calculate weekNo
|
|
var n = Math.floor((dt.getTime()-new Date(dt.getFullYear(),0,1) + 3600000) / 86400000);
|
|
return Math.floor(n / 7) + 1;
|
|
};
|
|
|
|
exports.getYearForWeekNo = function(date) {
|
|
var dt = new Date(date.getTime());
|
|
var d = dt.getDay();
|
|
if(d === 0) {
|
|
d = 7; // JavaScript Sun=0, ISO Sun=7
|
|
}
|
|
dt.setTime(dt.getTime() + (4 - d) * 86400000);// shift day to Thurs of same week
|
|
return dt.getFullYear();
|
|
};
|
|
|
|
exports.getHours12 = function(date) {
|
|
var h = date.getHours();
|
|
return h > 12 ? h-12 : ( h > 0 ? h : 12 );
|
|
};
|
|
|
|
/*
|
|
Convert a date delta in milliseconds into a string representation of "23 seconds ago", "27 minutes ago" etc.
|
|
delta: delta in milliseconds
|
|
Returns an object with these members:
|
|
description: string describing the delta period
|
|
updatePeriod: time in millisecond until the string will be inaccurate
|
|
*/
|
|
exports.getRelativeDate = function(delta) {
|
|
var futurep = false;
|
|
if(delta < 0) {
|
|
delta = -1 * delta;
|
|
futurep = true;
|
|
}
|
|
var units = [
|
|
{name: "Years", duration: 365 * 24 * 60 * 60 * 1000},
|
|
{name: "Months", duration: (365/12) * 24 * 60 * 60 * 1000},
|
|
{name: "Days", duration: 24 * 60 * 60 * 1000},
|
|
{name: "Hours", duration: 60 * 60 * 1000},
|
|
{name: "Minutes", duration: 60 * 1000},
|
|
{name: "Seconds", duration: 1000}
|
|
];
|
|
for(var t=0; t<units.length; t++) {
|
|
var result = Math.floor(delta / units[t].duration);
|
|
if(result >= 2) {
|
|
return {
|
|
delta: delta,
|
|
description: $tw.language.getString(
|
|
"RelativeDate/" + (futurep ? "Future" : "Past") + "/" + units[t].name,
|
|
{variables:
|
|
{period: result.toString()}
|
|
}
|
|
),
|
|
updatePeriod: units[t].duration
|
|
};
|
|
}
|
|
}
|
|
return {
|
|
delta: delta,
|
|
description: $tw.language.getString(
|
|
"RelativeDate/" + (futurep ? "Future" : "Past") + "/Second",
|
|
{variables:
|
|
{period: "1"}
|
|
}
|
|
),
|
|
updatePeriod: 1000
|
|
};
|
|
};
|
|
|
|
// Convert & to "&", < to "<", > to ">", " to """
|
|
exports.htmlEncode = function(s) {
|
|
if(s) {
|
|
return s.toString().replace(/&/mg,"&").replace(/</mg,"<").replace(/>/mg,">").replace(/\"/mg,""");
|
|
} else {
|
|
return "";
|
|
}
|
|
};
|
|
|
|
// Converts all HTML entities to their character equivalents
|
|
exports.entityDecode = function(s) {
|
|
var e = s.substr(1,s.length-2); // Strip the & and the ;
|
|
if(e.charAt(0) === "#") {
|
|
if(e.charAt(1) === "x" || e.charAt(1) === "X") {
|
|
return String.fromCharCode(parseInt(e.substr(2),16));
|
|
} else {
|
|
return String.fromCharCode(parseInt(e.substr(1),10));
|
|
}
|
|
} else {
|
|
var c = $tw.config.htmlEntities[e];
|
|
if(c) {
|
|
return String.fromCharCode(c);
|
|
} else {
|
|
return s; // Couldn't convert it as an entity, just return it raw
|
|
}
|
|
}
|
|
};
|
|
|
|
exports.unescapeLineBreaks = function(s) {
|
|
return s.replace(/\\n/mg,"\n").replace(/\\b/mg," ").replace(/\\s/mg,"\\").replace(/\r/mg,"");
|
|
};
|
|
|
|
/*
|
|
* Returns an escape sequence for given character. Uses \x for characters <=
|
|
* 0xFF to save space, \u for the rest.
|
|
*
|
|
* The code needs to be in sync with th code template in the compilation
|
|
* function for "action" nodes.
|
|
*/
|
|
// Copied from peg.js, thanks to David Majda
|
|
exports.escape = function(ch) {
|
|
var charCode = ch.charCodeAt(0);
|
|
if(charCode <= 0xFF) {
|
|
return '\\x' + $tw.utils.pad(charCode.toString(16).toUpperCase());
|
|
} else {
|
|
return '\\u' + $tw.utils.pad(charCode.toString(16).toUpperCase(),4);
|
|
}
|
|
};
|
|
|
|
// Turns a string into a legal JavaScript string
|
|
// Copied from peg.js, thanks to David Majda
|
|
exports.stringify = function(s) {
|
|
/*
|
|
* ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a string
|
|
* literal except for the closing quote character, backslash, carriage return,
|
|
* line separator, paragraph separator, and line feed. Any character may
|
|
* appear in the form of an escape sequence.
|
|
*
|
|
* For portability, we also escape all non-ASCII characters.
|
|
*/
|
|
return (s || "")
|
|
.replace(/\\/g, '\\\\') // backslash
|
|
.replace(/"/g, '\\"') // double quote character
|
|
.replace(/'/g, "\\'") // single quote character
|
|
.replace(/\r/g, '\\r') // carriage return
|
|
.replace(/\n/g, '\\n') // line feed
|
|
.replace(/[\x80-\uFFFF]/g, exports.escape); // non-ASCII characters
|
|
};
|
|
|
|
/*
|
|
Escape the RegExp special characters with a preceding backslash
|
|
*/
|
|
exports.escapeRegExp = function(s) {
|
|
return s.replace(/[\-\/\\\^\$\*\+\?\.\(\)\|\[\]\{\}]/g, '\\$&');
|
|
};
|
|
|
|
// Checks whether a link target is external, i.e. not a tiddler title
|
|
exports.isLinkExternal = function(to) {
|
|
var externalRegExp = /(?:file|http|https|mailto|ftp|irc|news|data|skype):[^\s<>{}\[\]`|'"\\^~]+(?:\/|\b)/i;
|
|
return externalRegExp.test(to);
|
|
};
|
|
|
|
exports.nextTick = function(fn) {
|
|
/*global window: false */
|
|
if(typeof process === "undefined") {
|
|
// Apparently it would be faster to use postMessage - http://dbaron.org/log/20100309-faster-timeouts
|
|
window.setTimeout(fn,4);
|
|
} else {
|
|
process.nextTick(fn);
|
|
}
|
|
};
|
|
|
|
/*
|
|
Convert a hyphenated CSS property name into a camel case one
|
|
*/
|
|
exports.unHyphenateCss = function(propName) {
|
|
return propName.replace(/-([a-z])/gi, function(match0,match1) {
|
|
return match1.toUpperCase();
|
|
});
|
|
};
|
|
|
|
/*
|
|
Convert a camelcase CSS property name into a dashed one ("backgroundColor" --> "background-color")
|
|
*/
|
|
exports.hyphenateCss = function(propName) {
|
|
return propName.replace(/([A-Z])/g, function(match0,match1) {
|
|
return "-" + match1.toLowerCase();
|
|
});
|
|
};
|
|
|
|
/*
|
|
Parse a text reference of one of these forms:
|
|
* title
|
|
* !!field
|
|
* title!!field
|
|
* title##index
|
|
* etc
|
|
Returns an object with the following fields, all optional:
|
|
* title: tiddler title
|
|
* field: tiddler field name
|
|
* index: JSON property index
|
|
*/
|
|
exports.parseTextReference = function(textRef) {
|
|
// Separate out the title, field name and/or JSON indices
|
|
var reTextRef = /(?:(.*?)!!(.+))|(?:(.*?)##(.+))|(.*)/mg,
|
|
match = reTextRef.exec(textRef),
|
|
result = {};
|
|
if(match && reTextRef.lastIndex === textRef.length) {
|
|
// Return the parts
|
|
if(match[1]) {
|
|
result.title = match[1];
|
|
}
|
|
if(match[2]) {
|
|
result.field = match[2];
|
|
}
|
|
if(match[3]) {
|
|
result.title = match[3];
|
|
}
|
|
if(match[4]) {
|
|
result.index = match[4];
|
|
}
|
|
if(match[5]) {
|
|
result.title = match[5];
|
|
}
|
|
} else {
|
|
// If we couldn't parse it
|
|
result.title = textRef
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/*
|
|
Checks whether a string is a valid fieldname
|
|
*/
|
|
exports.isValidFieldName = function(name) {
|
|
if(!name || typeof name !== "string") {
|
|
return false;
|
|
}
|
|
name = name.toLowerCase().trim();
|
|
var fieldValidatorRegEx = /^[a-z0-9\-\._]+$/mg;
|
|
return fieldValidatorRegEx.test(name);
|
|
};
|
|
|
|
/*
|
|
Extract the version number from the meta tag or from the boot file
|
|
*/
|
|
|
|
// Browser version
|
|
exports.extractVersionInfo = function() {
|
|
if($tw.packageInfo) {
|
|
return $tw.packageInfo.version;
|
|
} else {
|
|
var metatags = document.getElementsByTagName("meta");
|
|
for(var t=0; t<metatags.length; t++) {
|
|
var m = metatags[t];
|
|
if(m.name === "tiddlywiki-version") {
|
|
return m.content;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
};
|
|
|
|
/*
|
|
Get the animation duration in ms
|
|
*/
|
|
exports.getAnimationDuration = function() {
|
|
return parseInt($tw.wiki.getTiddlerText("$:/config/AnimationDuration","400"),10);
|
|
};
|
|
|
|
/*
|
|
Hash a string to a number
|
|
Derived from http://stackoverflow.com/a/15710692
|
|
*/
|
|
exports.hashString = function(str) {
|
|
return str.split("").reduce(function(a,b) {
|
|
a = ((a << 5) - a) + b.charCodeAt(0);
|
|
return a & a;
|
|
},0);
|
|
};
|
|
|
|
/*
|
|
Decode a base64 string
|
|
*/
|
|
exports.base64Decode = function(string64) {
|
|
if($tw.browser) {
|
|
// TODO
|
|
throw "$tw.utils.base64Decode() doesn't work in the browser";
|
|
} else {
|
|
return (new Buffer(string64,"base64")).toString();
|
|
}
|
|
};
|
|
|
|
/*
|
|
Convert a hashmap into a tiddler dictionary format sequence of name:value pairs
|
|
*/
|
|
exports.makeTiddlerDictionary = function(data) {
|
|
var output = [];
|
|
for(var name in data) {
|
|
output.push(name + ": " + data[name]);
|
|
}
|
|
return output.join("\n");
|
|
};
|
|
|
|
/*
|
|
High resolution microsecond timer for profiling
|
|
*/
|
|
exports.timer = function(base) {
|
|
var m;
|
|
if($tw.node) {
|
|
var r = process.hrtime();
|
|
m = r[0] * 1e3 + (r[1] / 1e6);
|
|
} else if(window.performance) {
|
|
m = performance.now();
|
|
} else {
|
|
m = Date.now();
|
|
}
|
|
if(typeof base !== "undefined") {
|
|
m = m - base;
|
|
}
|
|
return m;
|
|
};
|
|
|
|
/*
|
|
Convert text and content type to a data URI
|
|
*/
|
|
exports.makeDataUri = function(text,type) {
|
|
type = type || "text/vnd.tiddlywiki";
|
|
var typeInfo = $tw.config.contentTypeInfo[type] || $tw.config.contentTypeInfo["text/plain"],
|
|
isBase64 = typeInfo.encoding === "base64",
|
|
parts = [];
|
|
parts.push("data:");
|
|
parts.push(type);
|
|
parts.push(isBase64 ? ";base64" : "");
|
|
parts.push(",");
|
|
parts.push(isBase64 ? text : encodeURIComponent(text));
|
|
return parts.join("");
|
|
};
|
|
|
|
})(); |