4 lines
4.6 KiB
JavaScript
4 lines
4.6 KiB
JavaScript
/*! dustjs-helpers - v1.3.0
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* https://github.com/linkedin/dustjs-helpers
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* Copyright (c) 2014 Aleksander Williams; Released under the MIT License */
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!function(dust){function isSelect(a){var b=a.current();return"object"==typeof b&&b.isSelect===!0}function jsonFilter(a,b){return"function"==typeof b?b.toString().replace(/(^\s+|\s+$)/gm,"").replace(/\n/gm,"").replace(/,\s*/gm,", ").replace(/\)\{/gm,") {"):b}function filter(a,b,c,d,e){d=d||{};var f,g,h=c.block,i=d.filterOpType||"";if("undefined"!=typeof d.key)f=dust.helpers.tap(d.key,a,b);else{if(!isSelect(b))return _log("No key specified for filter in:"+i+" helper "),a;f=b.current().selectKey,b.current().isResolved&&(e=function(){return!1})}return g=dust.helpers.tap(d.value,a,b),e(coerce(g,d.type,b),coerce(f,d.type,b))?(isSelect(b)&&(b.current().isResolved=!0),h?a.render(h,b):(_log("No key specified for filter in:"+i+" helper "),a)):c["else"]?a.render(c["else"],b):a}function coerce(a,b,c){if(a)switch(b||typeof a){case"number":return+a;case"string":return String(a);case"boolean":return a="false"===a?!1:a,Boolean(a);case"date":return new Date(a);case"context":return c.get(a)}return a}var _log=dust.log?function(a){dust.log(a,"INFO")}:function(){},helpers={tap:function(a,b,c){if("function"!=typeof a)return a;var d,e="";return d=b.tap(function(a){return e+=a,""}).render(a,c),b.untap(),d.constructor!==b.constructor?d:""===e?!1:e},sep:function(a,b,c){var d=c.block;return b.stack.index===b.stack.of-1?a:d?c.block(a,b):a},idx:function(a,b,c){var d=c.block;return d?c.block(a,b.push(b.stack.index)):a},contextDump:function(a,b,c,d){var e,f=d||{},g=f.to||"output",h=f.key||"current";return g=dust.helpers.tap(g,a,b),h=dust.helpers.tap(h,a,b),e="full"===h?JSON.stringify(b.stack,jsonFilter,2):JSON.stringify(b.stack.head,jsonFilter,2),"console"===g?(_log(e),a):a.write(e)},"if":function(chunk,context,bodies,params){var body=bodies.block,skip=bodies["else"];if(params&¶ms.cond){var cond=params.cond;if(cond=dust.helpers.tap(cond,chunk,context),eval(cond))return body?chunk.render(bodies.block,context):(_log("Missing body block in the if helper!"),chunk);if(skip)return chunk.render(bodies["else"],context)}else _log("No condition given in the if helper!");return chunk},math:function(a,b,c,d){if(d&&"undefined"!=typeof d.key&&d.method){var e=d.key,f=d.method,g=d.operand,h=d.round,i=null;switch(e=dust.helpers.tap(e,a,b),g=dust.helpers.tap(g,a,b),f){case"mod":(0===g||g===-0)&&_log("operand for divide operation is 0/-0: expect Nan!"),i=parseFloat(e)%parseFloat(g);break;case"add":i=parseFloat(e)+parseFloat(g);break;case"subtract":i=parseFloat(e)-parseFloat(g);break;case"multiply":i=parseFloat(e)*parseFloat(g);break;case"divide":(0===g||g===-0)&&_log("operand for divide operation is 0/-0: expect Nan/Infinity!"),i=parseFloat(e)/parseFloat(g);break;case"ceil":i=Math.ceil(parseFloat(e));break;case"floor":i=Math.floor(parseFloat(e));break;case"round":i=Math.round(parseFloat(e));break;case"abs":i=Math.abs(parseFloat(e));break;default:_log("method passed is not supported")}return null!==i?(h&&(i=Math.round(i)),c&&c.block?a.render(c.block,b.push({isSelect:!0,isResolved:!1,selectKey:i})):a.write(i)):a}return _log("Key is a required parameter for math helper along with method/operand!"),a},select:function(a,b,c,d){var e=c.block;if(d&&"undefined"!=typeof d.key){var f=dust.helpers.tap(d.key,a,b);return e?a.render(c.block,b.push({isSelect:!0,isResolved:!1,selectKey:f})):(_log("Missing body block in the select helper "),a)}return _log("No key given in the select helper!"),a},eq:function(a,b,c,d){return d&&(d.filterOpType="eq"),filter(a,b,c,d,function(a,b){return b===a})},ne:function(a,b,c,d){return d?(d.filterOpType="ne",filter(a,b,c,d,function(a,b){return b!==a})):a},lt:function(a,b,c,d){return d?(d.filterOpType="lt",filter(a,b,c,d,function(a,b){return a>b})):void 0},lte:function(a,b,c,d){return d?(d.filterOpType="lte",filter(a,b,c,d,function(a,b){return a>=b})):a},gt:function(a,b,c,d){return d?(d.filterOpType="gt",filter(a,b,c,d,function(a,b){return b>a})):a},gte:function(a,b,c,d){return d?(d.filterOpType="gte",filter(a,b,c,d,function(a,b){return b>=a})):a},"default":function(a,b,c,d){return d&&(d.filterOpType="default"),filter(a,b,c,d,function(){return!0})},size:function(a,b,c,d){var e,f,g,h=0;if(d=d||{},e=d.key,e&&e!==!0)if(dust.isArray(e))h=e.length;else if(!isNaN(parseFloat(e))&&isFinite(e))h=e;else if("object"==typeof e){f=0;for(g in e)Object.hasOwnProperty.call(e,g)&&f++;h=f}else h=(e+"").length;else h=0;return a.write(h)}};for(var key in helpers)dust.helpers[key]=helpers[key];"undefined"!=typeof exports&&(module.exports=dust)}("undefined"!=typeof exports?require("dustjs-linkedin"):dust); |