86 lines
2.4 KiB
JavaScript
86 lines
2.4 KiB
JavaScript
function isval(x/*:?any*/)/*:boolean*/ { return x !== undefined && x !== null; }
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function keys(o/*:any*/)/*:Array<any>*/ { return Object.keys(o); }
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function evert_key(obj/*:any*/, key/*:string*/)/*:EvertType*/ {
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var o = ([]/*:any*/), K = keys(obj);
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for(var i = 0; i !== K.length; ++i) o[obj[K[i]][key]] = K[i];
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return o;
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}
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function evert(obj/*:any*/)/*:EvertType*/ {
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var o = ([]/*:any*/), K = keys(obj);
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for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = K[i];
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return o;
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}
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function evert_num(obj/*:any*/)/*:EvertNumType*/ {
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var o = ([]/*:any*/), K = keys(obj);
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for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = parseInt(K[i],10);
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return o;
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}
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function evert_arr(obj/*:any*/)/*:EvertArrType*/ {
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var o/*:EvertArrType*/ = ([]/*:any*/), K = keys(obj);
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for(var i = 0; i !== K.length; ++i) {
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if(o[obj[K[i]]] == null) o[obj[K[i]]] = [];
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o[obj[K[i]]].push(K[i]);
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}
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return o;
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}
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function datenum(v/*:Date*/, date1904/*:?boolean*/)/*:number*/ {
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var epoch = v.getTime();
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if(date1904) epoch += 1462*24*60*60*1000;
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return (epoch + 2209161600000) / (24 * 60 * 60 * 1000);
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}
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/* ISO 8601 Duration */
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function parse_isodur(s) {
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var sec = 0, mt = 0, time = false;
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var m = s.match(/P([0-9\.]+Y)?([0-9\.]+M)?([0-9\.]+D)?T([0-9\.]+H)?([0-9\.]+M)?([0-9\.]+S)?/);
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if(!m) throw new Error("|" + s + "| is not an ISO8601 Duration");
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for(var i = 1; i != m.length; ++i) {
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if(!m[i]) continue;
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mt = 1;
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if(i > 3) time = true;
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switch(m[i].substr(m[i].length-1)) {
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case 'Y':
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throw new Error("Unsupported ISO Duration Field: " + m[i].substr(m[i].length-1));
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case 'D': mt *= 24;
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/* falls through */
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case 'H': mt *= 60;
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/* falls through */
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case 'M':
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if(!time) throw new Error("Unsupported ISO Duration Field: M");
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else mt *= 60;
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/* falls through */
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case 'S': break;
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}
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sec += mt * parseInt(m[i], 10);
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}
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return sec;
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}
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function cc2str(arr/*:Array<number>*/)/*:string*/ {
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var o = "";
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for(var i = 0; i != arr.length; ++i) o += String.fromCharCode(arr[i]);
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return o;
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}
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function str2cc(str) {
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var o = [];
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for(var i = 0; i != str.length; ++i) o.push(str.charCodeAt(i));
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return o;
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}
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function dup(o/*:any*/)/*:any*/ {
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if(typeof JSON != 'undefined' && !Array.isArray(o)) return JSON.parse(JSON.stringify(o));
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if(typeof o != 'object' || o == null) return o;
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var out = {};
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for(var k in o) if(o.hasOwnProperty(k)) out[k] = dup(o[k]);
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return out;
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}
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function fill(c/*:string*/,l/*:number*/)/*:string*/ { var o = ""; while(o.length < l) o+=c; return o; }
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