| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253 | let Declaration = require('../declaration')let flexSpec = require('./flex-spec')class FlexFlow extends Declaration {  /**   * Use two properties for 2009 spec   */  insert(decl, prefix, prefixes) {    let spec    ;[spec, prefix] = flexSpec(prefix)    if (spec !== 2009) {      return super.insert(decl, prefix, prefixes)    }    let values = decl.value      .split(/\s+/)      .filter(i => i !== 'wrap' && i !== 'nowrap' && 'wrap-reverse')    if (values.length === 0) {      return undefined    }    let already = decl.parent.some(      i =>        i.prop === prefix + 'box-orient' || i.prop === prefix + 'box-direction'    )    if (already) {      return undefined    }    let value = values[0]    let orient = value.includes('row') ? 'horizontal' : 'vertical'    let dir = value.includes('reverse') ? 'reverse' : 'normal'    let cloned = this.clone(decl)    cloned.prop = prefix + 'box-orient'    cloned.value = orient    if (this.needCascade(decl)) {      cloned.raws.before = this.calcBefore(prefixes, decl, prefix)    }    decl.parent.insertBefore(decl, cloned)    cloned = this.clone(decl)    cloned.prop = prefix + 'box-direction'    cloned.value = dir    if (this.needCascade(decl)) {      cloned.raws.before = this.calcBefore(prefixes, decl, prefix)    }    return decl.parent.insertBefore(decl, cloned)  }}FlexFlow.names = ['flex-flow', 'box-direction', 'box-orient']module.exports = FlexFlow
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