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65 lines
1.4 KiB
65 lines
1.4 KiB
9 years ago
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function bool(x) {
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return (x === 1 || x === '1' || x === true || x === 'true');
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}
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/** html entities */
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function e(x) {
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return String(x)
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.replace(/&/g, '&')
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.replace(/"/g, '"')
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.replace(/'/g, ''')
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.replace(/</g, '<')
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.replace(/>/g, '>');
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}
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/** Returns true if argument is array [] */
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function isArray(obj) {
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return Object.prototype.toString.call(obj) === '[object Array]';
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}
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/** Returns true if argument is object {} */
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function isObject(obj) {
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return Object.prototype.toString.call(obj) === '[object Object]';
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}
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/** escape a string to have no special meaning in regex */
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function regexEscape(s) {
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return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
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}
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/** Perform a substitution in the given string.
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*
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* Arguments - array or list of replacements.
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* Arguments numeric keys will replace {0}, {1} etc.
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* Named keys also work, ie. {foo: "bar"} -> replaces {foo} with bar.
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*
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* Braces are added to keys if missing.
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*
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* @returns {String} result
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*/
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String.prototype.format = function () {
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var out = this;
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var repl = arguments;
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if (arguments.length == 1 && (isArray(arguments[0]) || isObject(arguments[0]))) {
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repl = arguments[0];
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}
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for (var ph in repl) {
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if (repl.hasOwnProperty(ph)) {
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var ph_orig = ph;
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if (!ph.match(/^\{.*\}$/)) {
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ph = '{' + ph + '}';
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}
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// replace all occurrences
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var pattern = new RegExp(regexEscape(ph), "g");
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out = out.replace(pattern, repl[ph_orig]);
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}
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}
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return out;
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};
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