avalon2
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an elegant efficient express mvvm framework
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<a href="../index.html">all files</a> / <a href="index.html">parser/</a> interpolate.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { avalon, config } from '../seed/core'
import { addScope } from './index'
var rimprovePriority = /[+-\?]/
var rinnerValue = /__value__\)$/
export function parseInterpolate(dir) {
var rlineSp = /\n\r?/g
var str = dir.nodeValue.trim().replace(rlineSp, '')
var tokens = []
do {//aaa{{@bbb}}ccc
var index = str.indexOf(config.openTag)
index = index === -1 ? str.length : index
var value = str.slice(0, index)
if (/\S/.test(value)) {
tokens.push(avalon.quote(avalon._decode(value)))
}
str = str.slice(index + config.openTag.length)
if (str) {
index = str.indexOf(config.closeTag)
var value = str.slice(0, index)
var expr = avalon.unescapeHTML(value)
if (/\|\s*\w/.test(expr)) {//如果存在过滤器，优化干掉
var arr = addScope(expr, 'expr')
<span class="missing-if-branch" title="else path not taken" >E</span>if (arr[1]) {
expr = arr[1].replace(rinnerValue, arr[0]+')')
}
}
<span class="missing-if-branch" title="else path not taken" >E</span>if(rimprovePriority){
expr = '('+expr+')'
}
tokens.push(expr)
str = str.slice(index + config.closeTag.length)
}
} while (str.length)
return [{
expr: tokens.join('+'),
name: 'expr',
type: 'expr'
}]
}</pre></td></tr>
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