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							703 lines
						
					
					
						
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							703 lines
						
					
					
						
							22 KiB
						
					
					
				'use strict'; | 
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 | 
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Object.defineProperty(exports, "__esModule", { | 
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    value: true | 
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}); | 
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 | 
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var _postcss = require('postcss'); | 
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 | 
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var _stylehacks = require('stylehacks'); | 
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 | 
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var _insertCloned = require('../insertCloned'); | 
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 | 
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var _insertCloned2 = _interopRequireDefault(_insertCloned); | 
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 | 
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var _parseTrbl = require('../parseTrbl'); | 
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 | 
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var _parseTrbl2 = _interopRequireDefault(_parseTrbl); | 
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 | 
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var _hasAllProps = require('../hasAllProps'); | 
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 | 
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var _hasAllProps2 = _interopRequireDefault(_hasAllProps); | 
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 | 
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var _getDecls = require('../getDecls'); | 
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 | 
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var _getDecls2 = _interopRequireDefault(_getDecls); | 
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 | 
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var _getRules = require('../getRules'); | 
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 | 
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var _getRules2 = _interopRequireDefault(_getRules); | 
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 | 
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var _getValue = require('../getValue'); | 
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 | 
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var _getValue2 = _interopRequireDefault(_getValue); | 
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 | 
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var _mergeRules = require('../mergeRules'); | 
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 | 
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var _mergeRules2 = _interopRequireDefault(_mergeRules); | 
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 | 
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var _minifyTrbl = require('../minifyTrbl'); | 
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 | 
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var _minifyTrbl2 = _interopRequireDefault(_minifyTrbl); | 
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 | 
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var _minifyWsc = require('../minifyWsc'); | 
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 | 
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var _minifyWsc2 = _interopRequireDefault(_minifyWsc); | 
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 | 
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var _canMerge = require('../canMerge'); | 
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 | 
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var _canMerge2 = _interopRequireDefault(_canMerge); | 
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 | 
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var _remove = require('../remove'); | 
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 | 
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var _remove2 = _interopRequireDefault(_remove); | 
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 | 
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var _trbl = require('../trbl'); | 
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 | 
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var _trbl2 = _interopRequireDefault(_trbl); | 
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 | 
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var _isCustomProp = require('../isCustomProp'); | 
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 | 
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var _isCustomProp2 = _interopRequireDefault(_isCustomProp); | 
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 | 
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var _canExplode = require('../canExplode'); | 
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 | 
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var _canExplode2 = _interopRequireDefault(_canExplode); | 
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 | 
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var _getLastNode = require('../getLastNode'); | 
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 | 
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var _getLastNode2 = _interopRequireDefault(_getLastNode); | 
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 | 
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var _parseWsc = require('../parseWsc'); | 
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 | 
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var _parseWsc2 = _interopRequireDefault(_parseWsc); | 
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 | 
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var _validateWsc = require('../validateWsc'); | 
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 | 
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } | 
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 | 
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const wsc = ['width', 'style', 'color']; | 
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const defaults = ['medium', 'none', 'currentcolor']; | 
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 | 
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function borderProperty(...parts) { | 
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    return `border-${parts.join('-')}`; | 
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} | 
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 | 
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function mapBorderProperty(value) { | 
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    return borderProperty(value); | 
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} | 
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 | 
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const directions = _trbl2.default.map(mapBorderProperty); | 
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const properties = wsc.map(mapBorderProperty); | 
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const directionalProperties = directions.reduce((prev, curr) => prev.concat(wsc.map(prop => `${curr}-${prop}`)), []); | 
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 | 
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const precedence = [['border'], directions.concat(properties), directionalProperties]; | 
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 | 
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const allProperties = precedence.reduce((a, b) => a.concat(b)); | 
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 | 
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function getLevel(prop) { | 
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    for (let i = 0; i < precedence.length; i++) { | 
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        if (!!~precedence[i].indexOf(prop.toLowerCase())) { | 
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            return i; | 
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        } | 
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    } | 
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} | 
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 | 
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const isValueCustomProp = value => value && !!~value.search(/var\s*\(\s*--/i); | 
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 | 
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function canMergeValues(values) { | 
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    return !values.some(isValueCustomProp) || values.every(isValueCustomProp); | 
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} | 
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 | 
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function getColorValue(decl) { | 
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    if (decl.prop.substr(-5) === 'color') { | 
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        return decl.value; | 
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    } | 
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 | 
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    return (0, _parseWsc2.default)(decl.value)[2] || defaults[2]; | 
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} | 
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 | 
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function diffingProps(values, nextValues) { | 
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    return wsc.reduce((prev, curr, i) => { | 
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        if (values[i] === nextValues[i]) { | 
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            return prev; | 
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        } | 
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 | 
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        return [...prev, curr]; | 
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    }, []); | 
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} | 
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 | 
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function mergeRedundant({ values, nextValues, decl, nextDecl, index }) { | 
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    if (!(0, _canMerge2.default)([decl, nextDecl])) { | 
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        return; | 
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    } | 
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 | 
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    if ((0, _stylehacks.detect)(decl) || (0, _stylehacks.detect)(nextDecl)) { | 
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        return; | 
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    } | 
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 | 
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    const diff = diffingProps(values, nextValues); | 
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 | 
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    if (diff.length > 1) { | 
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        return; | 
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    } | 
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 | 
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    const prop = diff.pop(); | 
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    const position = wsc.indexOf(prop); | 
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 | 
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    const prop1 = `${nextDecl.prop}-${prop}`; | 
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    const prop2 = `border-${prop}`; | 
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 | 
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    let props = (0, _parseTrbl2.default)(values[position]); | 
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 | 
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    props[index] = nextValues[position]; | 
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 | 
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    const borderValue2 = values.filter((e, i) => i !== position).join(' '); | 
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    const propValue2 = (0, _minifyTrbl2.default)(props); | 
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 | 
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    const origLength = ((0, _minifyWsc2.default)(decl.value) + nextDecl.prop + nextDecl.value).length; | 
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    const newLength1 = decl.value.length + prop1.length + (0, _minifyWsc2.default)(nextValues[position]).length; | 
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    const newLength2 = borderValue2.length + prop2.length + propValue2.length; | 
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 | 
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    if (newLength1 < newLength2 && newLength1 < origLength) { | 
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        nextDecl.prop = prop1; | 
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        nextDecl.value = nextValues[position]; | 
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    } | 
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 | 
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    if (newLength2 < newLength1 && newLength2 < origLength) { | 
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        decl.value = borderValue2; | 
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        nextDecl.prop = prop2; | 
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        nextDecl.value = propValue2; | 
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    } | 
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} | 
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 | 
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function isCloseEnough(mapped) { | 
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    return mapped[0] === mapped[1] && mapped[1] === mapped[2] || mapped[1] === mapped[2] && mapped[2] === mapped[3] || mapped[2] === mapped[3] && mapped[3] === mapped[0] || mapped[3] === mapped[0] && mapped[0] === mapped[1]; | 
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} | 
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 | 
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function getDistinctShorthands(mapped) { | 
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    return mapped.reduce((a, b) => { | 
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        a = Array.isArray(a) ? a : [a]; | 
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 | 
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        if (!~a.indexOf(b)) { | 
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            a.push(b); | 
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        } | 
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 | 
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        return a; | 
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    }); | 
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} | 
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 | 
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function explode(rule) { | 
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    rule.walkDecls(/^border/i, decl => { | 
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        if (!(0, _canExplode2.default)(decl, false)) { | 
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            return; | 
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        } | 
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 | 
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        if ((0, _stylehacks.detect)(decl)) { | 
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            return; | 
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        } | 
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 | 
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        const prop = decl.prop.toLowerCase(); | 
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 | 
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        // border -> border-trbl | 
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        if (prop === 'border') { | 
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            if ((0, _validateWsc.isValidWsc)((0, _parseWsc2.default)(decl.value))) { | 
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                directions.forEach(direction => { | 
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                    (0, _insertCloned2.default)(decl.parent, decl, { prop: direction }); | 
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                }); | 
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 | 
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                return decl.remove(); | 
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            } | 
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        } | 
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 | 
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        // border-trbl -> border-trbl-wsc | 
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        if (directions.some(direction => prop === direction)) { | 
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            let values = (0, _parseWsc2.default)(decl.value); | 
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 | 
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            if ((0, _validateWsc.isValidWsc)(values)) { | 
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                wsc.forEach((d, i) => { | 
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                    (0, _insertCloned2.default)(decl.parent, decl, { | 
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                        prop: `${prop}-${d}`, | 
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                        value: values[i] || defaults[i] | 
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                    }); | 
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                }); | 
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 | 
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                return decl.remove(); | 
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            } | 
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        } | 
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 | 
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        // border-wsc -> border-trbl-wsc | 
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        wsc.some(style => { | 
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            if (prop !== borderProperty(style)) { | 
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                return false; | 
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            } | 
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 | 
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            (0, _parseTrbl2.default)(decl.value).forEach((value, i) => { | 
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                (0, _insertCloned2.default)(decl.parent, decl, { | 
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                    prop: borderProperty(_trbl2.default[i], style), | 
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                    value | 
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                }); | 
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            }); | 
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 | 
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            return decl.remove(); | 
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        }); | 
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    }); | 
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} | 
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 | 
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function merge(rule) { | 
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    // border-trbl-wsc -> border-trbl | 
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    _trbl2.default.forEach(direction => { | 
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        const prop = borderProperty(direction); | 
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 | 
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        (0, _mergeRules2.default)(rule, wsc.map(style => borderProperty(direction, style)), (rules, lastNode) => { | 
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            if ((0, _canMerge2.default)(rules, false) && !rules.some(_stylehacks.detect)) { | 
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                (0, _insertCloned2.default)(lastNode.parent, lastNode, { | 
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                    prop, | 
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                    value: rules.map(_getValue2.default).join(' ') | 
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                }); | 
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 | 
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                rules.forEach(_remove2.default); | 
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 | 
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                return true; | 
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            } | 
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        }); | 
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    }); | 
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 | 
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    // border-trbl-wsc -> border-wsc | 
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    wsc.forEach(style => { | 
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        const prop = borderProperty(style); | 
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 | 
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        (0, _mergeRules2.default)(rule, _trbl2.default.map(direction => borderProperty(direction, style)), (rules, lastNode) => { | 
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            if ((0, _canMerge2.default)(rules) && !rules.some(_stylehacks.detect)) { | 
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                (0, _insertCloned2.default)(lastNode.parent, lastNode, { | 
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                    prop, | 
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                    value: (0, _minifyTrbl2.default)(rules.map(_getValue2.default).join(' ')) | 
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                }); | 
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 | 
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                rules.forEach(_remove2.default); | 
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 | 
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                return true; | 
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            } | 
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        }); | 
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    }); | 
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 | 
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    // border-trbl -> border-wsc | 
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    (0, _mergeRules2.default)(rule, directions, (rules, lastNode) => { | 
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        if (rules.some(_stylehacks.detect)) { | 
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            return; | 
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        } | 
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 | 
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        const values = rules.map(({ value }) => value); | 
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 | 
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        if (!canMergeValues(values)) { | 
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            return; | 
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        } | 
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 | 
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        const parsed = values.map(value => (0, _parseWsc2.default)(value)); | 
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 | 
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        if (!parsed.every(_validateWsc.isValidWsc)) { | 
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            return; | 
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        } | 
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 | 
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        wsc.forEach((d, i) => { | 
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            const value = parsed.map(v => v[i] || defaults[i]); | 
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 | 
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            if (canMergeValues(value)) { | 
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                (0, _insertCloned2.default)(lastNode.parent, lastNode, { | 
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                    prop: borderProperty(d), | 
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                    value: (0, _minifyTrbl2.default)(value) | 
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                }); | 
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            } else { | 
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                (0, _insertCloned2.default)(lastNode.parent, lastNode); | 
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            } | 
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        }); | 
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 | 
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        rules.forEach(_remove2.default); | 
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 | 
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        return true; | 
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    }); | 
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 | 
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    // border-wsc -> border | 
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    // border-wsc -> border + border-color | 
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    // border-wsc -> border + border-dir | 
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    (0, _mergeRules2.default)(rule, properties, (rules, lastNode) => { | 
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        if (rules.some(_stylehacks.detect)) { | 
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            return; | 
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        } | 
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 | 
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        const values = rules.map(node => (0, _parseTrbl2.default)(node.value)); | 
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        const mapped = [0, 1, 2, 3].map(i => [values[0][i], values[1][i], values[2][i]].join(' ')); | 
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 | 
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        if (!canMergeValues(mapped)) { | 
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            return; | 
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        } | 
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 | 
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        const [width, style, color] = rules; | 
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        const reduced = getDistinctShorthands(mapped); | 
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 | 
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        if (isCloseEnough(mapped) && (0, _canMerge2.default)(rules, false)) { | 
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            const first = mapped.indexOf(reduced[0]) !== mapped.lastIndexOf(reduced[0]); | 
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 | 
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            const border = (0, _insertCloned2.default)(lastNode.parent, lastNode, { | 
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                prop: 'border', | 
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                value: first ? reduced[0] : reduced[1] | 
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            }); | 
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 | 
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            if (reduced[1]) { | 
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                const value = first ? reduced[1] : reduced[0]; | 
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                const prop = borderProperty(_trbl2.default[mapped.indexOf(value)]); | 
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 | 
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                rule.insertAfter(border, Object.assign(lastNode.clone(), { | 
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                    prop, | 
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                    value | 
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                })); | 
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            } | 
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            rules.forEach(_remove2.default); | 
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 | 
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            return true; | 
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        } else if (reduced.length === 1) { | 
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            rule.insertBefore(color, Object.assign(lastNode.clone(), { | 
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                prop: 'border', | 
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                value: [width, style].map(_getValue2.default).join(' ') | 
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            })); | 
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            rules.filter(node => node.prop.toLowerCase() !== properties[2]).forEach(_remove2.default); | 
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 | 
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            return true; | 
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        } | 
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    }); | 
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 | 
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    // border-wsc -> border + border-trbl | 
						|
    (0, _mergeRules2.default)(rule, properties, (rules, lastNode) => { | 
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        if (rules.some(_stylehacks.detect)) { | 
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            return; | 
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        } | 
						|
 | 
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        const values = rules.map(node => (0, _parseTrbl2.default)(node.value)); | 
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        const mapped = [0, 1, 2, 3].map(i => [values[0][i], values[1][i], values[2][i]].join(' ')); | 
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        const reduced = getDistinctShorthands(mapped); | 
						|
        const none = 'medium none currentcolor'; | 
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 | 
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        if (reduced.length > 1 && reduced.length < 4 && reduced.includes(none)) { | 
						|
            const filtered = mapped.filter(p => p !== none); | 
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            const mostCommon = reduced.sort((a, b) => mapped.filter(v => v === b).length - mapped.filter(v => v === a).length)[0]; | 
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            const borderValue = reduced.length === 2 ? filtered[0] : mostCommon; | 
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 | 
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            rule.insertBefore(lastNode, Object.assign(lastNode.clone(), { | 
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                prop: 'border', | 
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                value: borderValue | 
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            })); | 
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 | 
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            directions.forEach((dir, i) => { | 
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                if (mapped[i] !== borderValue) { | 
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                    rule.insertBefore(lastNode, Object.assign(lastNode.clone(), { | 
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                        prop: dir, | 
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                        value: mapped[i] | 
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                    })); | 
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                } | 
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            }); | 
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 | 
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            rules.forEach(_remove2.default); | 
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 | 
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            return true; | 
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        } | 
						|
    }); | 
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 | 
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    // border-trbl -> border | 
						|
    // border-trbl -> border + border-trbl | 
						|
    (0, _mergeRules2.default)(rule, directions, (rules, lastNode) => { | 
						|
        if (rules.some(_stylehacks.detect)) { | 
						|
            return; | 
						|
        } | 
						|
 | 
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        const values = rules.map(node => { | 
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            const wscValue = (0, _parseWsc2.default)(node.value); | 
						|
 | 
						|
            if (!(0, _validateWsc.isValidWsc)(wscValue)) { | 
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                return node.value; | 
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            } | 
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 | 
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            return wscValue.map((value, i) => value || defaults[i]).join(' '); | 
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        }); | 
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 | 
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        const reduced = getDistinctShorthands(values); | 
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 | 
						|
        if (isCloseEnough(values)) { | 
						|
            const first = values.indexOf(reduced[0]) !== values.lastIndexOf(reduced[0]); | 
						|
 | 
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            rule.insertBefore(lastNode, Object.assign(lastNode.clone(), { | 
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                prop: 'border', | 
						|
                value: (0, _minifyWsc2.default)(first ? values[0] : values[1]) | 
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            })); | 
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 | 
						|
            if (reduced[1]) { | 
						|
                const value = first ? reduced[1] : reduced[0]; | 
						|
                const prop = directions[values.indexOf(value)]; | 
						|
                rule.insertBefore(lastNode, Object.assign(lastNode.clone(), { | 
						|
                    prop: prop, | 
						|
                    value: (0, _minifyWsc2.default)(value) | 
						|
                })); | 
						|
            } | 
						|
 | 
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            rules.forEach(_remove2.default); | 
						|
 | 
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            return true; | 
						|
        } | 
						|
    }); | 
						|
 | 
						|
    // border-trbl-wsc + border-trbl (custom prop) -> border-trbl + border-trbl-wsc (custom prop) | 
						|
    directions.forEach(direction => { | 
						|
        wsc.forEach((style, i) => { | 
						|
            const prop = `${direction}-${style}`; | 
						|
 | 
						|
            (0, _mergeRules2.default)(rule, [direction, prop], (rules, lastNode) => { | 
						|
                if (lastNode.prop !== direction) { | 
						|
                    return; | 
						|
                } | 
						|
 | 
						|
                const values = (0, _parseWsc2.default)(lastNode.value); | 
						|
 | 
						|
                if (!(0, _validateWsc.isValidWsc)(values)) { | 
						|
                    return; | 
						|
                } | 
						|
 | 
						|
                const wscProp = rules.filter(r => r !== lastNode)[0]; | 
						|
 | 
						|
                if (!isValueCustomProp(values[i]) || (0, _isCustomProp2.default)(wscProp)) { | 
						|
                    return; | 
						|
                } | 
						|
 | 
						|
                const wscValue = values[i]; | 
						|
 | 
						|
                values[i] = wscProp.value; | 
						|
 | 
						|
                if ((0, _canMerge2.default)(rules, false) && !rules.some(_stylehacks.detect)) { | 
						|
                    (0, _insertCloned2.default)(lastNode.parent, lastNode, { | 
						|
                        prop, | 
						|
                        value: wscValue | 
						|
                    }); | 
						|
                    lastNode.value = (0, _minifyWsc2.default)(values); | 
						|
 | 
						|
                    wscProp.remove(); | 
						|
 | 
						|
                    return true; | 
						|
                } | 
						|
            }); | 
						|
        }); | 
						|
    }); | 
						|
 | 
						|
    // border-wsc + border (custom prop) -> border + border-wsc (custom prop) | 
						|
    wsc.forEach((style, i) => { | 
						|
        const prop = borderProperty(style); | 
						|
        (0, _mergeRules2.default)(rule, ['border', prop], (rules, lastNode) => { | 
						|
            if (lastNode.prop !== 'border') { | 
						|
                return; | 
						|
            } | 
						|
 | 
						|
            const values = (0, _parseWsc2.default)(lastNode.value); | 
						|
 | 
						|
            if (!(0, _validateWsc.isValidWsc)(values)) { | 
						|
                return; | 
						|
            } | 
						|
 | 
						|
            const wscProp = rules.filter(r => r !== lastNode)[0]; | 
						|
 | 
						|
            if (!isValueCustomProp(values[i]) || (0, _isCustomProp2.default)(wscProp)) { | 
						|
                return; | 
						|
            } | 
						|
 | 
						|
            const wscValue = values[i]; | 
						|
 | 
						|
            values[i] = wscProp.value; | 
						|
 | 
						|
            if ((0, _canMerge2.default)(rules, false) && !rules.some(_stylehacks.detect)) { | 
						|
                (0, _insertCloned2.default)(lastNode.parent, lastNode, { | 
						|
                    prop, | 
						|
                    value: wscValue | 
						|
                }); | 
						|
                lastNode.value = (0, _minifyWsc2.default)(values); | 
						|
                wscProp.remove(); | 
						|
 | 
						|
                return true; | 
						|
            } | 
						|
        }); | 
						|
    }); | 
						|
 | 
						|
    // optimize border-trbl | 
						|
    let decls = (0, _getDecls2.default)(rule, directions); | 
						|
 | 
						|
    while (decls.length) { | 
						|
        const lastNode = decls[decls.length - 1]; | 
						|
 | 
						|
        wsc.forEach((d, i) => { | 
						|
            const names = directions.filter(name => name !== lastNode.prop).map(name => `${name}-${d}`); | 
						|
 | 
						|
            let nodes = rule.nodes.slice(0, rule.nodes.indexOf(lastNode)); | 
						|
 | 
						|
            const border = (0, _getLastNode2.default)(nodes, 'border'); | 
						|
 | 
						|
            if (border) { | 
						|
                nodes = nodes.slice(nodes.indexOf(border)); | 
						|
            } | 
						|
 | 
						|
            const props = nodes.filter(node => node.prop && ~names.indexOf(node.prop) && node.important === lastNode.important); | 
						|
            const rules = (0, _getRules2.default)(props, names); | 
						|
 | 
						|
            if ((0, _hasAllProps2.default)(rules, ...names) && !rules.some(_stylehacks.detect)) { | 
						|
                const values = rules.map(node => node ? node.value : null); | 
						|
                const filteredValues = values.filter(Boolean); | 
						|
                const lastNodeValue = _postcss.list.space(lastNode.value)[i]; | 
						|
 | 
						|
                values[directions.indexOf(lastNode.prop)] = lastNodeValue; | 
						|
 | 
						|
                let value = (0, _minifyTrbl2.default)(values.join(' ')); | 
						|
 | 
						|
                if (filteredValues[0] === filteredValues[1] && filteredValues[1] === filteredValues[2]) { | 
						|
                    value = filteredValues[0]; | 
						|
                } | 
						|
 | 
						|
                let refNode = props[props.length - 1]; | 
						|
 | 
						|
                if (value === lastNodeValue) { | 
						|
                    refNode = lastNode; | 
						|
                    let valueArray = _postcss.list.space(lastNode.value); | 
						|
                    valueArray.splice(i, 1); | 
						|
                    lastNode.value = valueArray.join(' '); | 
						|
                } | 
						|
 | 
						|
                (0, _insertCloned2.default)(refNode.parent, refNode, { | 
						|
                    prop: borderProperty(d), | 
						|
                    value | 
						|
                }); | 
						|
 | 
						|
                decls = decls.filter(node => !~rules.indexOf(node)); | 
						|
                rules.forEach(_remove2.default); | 
						|
            } | 
						|
        }); | 
						|
 | 
						|
        decls = decls.filter(node => node !== lastNode); | 
						|
    } | 
						|
 | 
						|
    rule.walkDecls('border', decl => { | 
						|
        const nextDecl = decl.next(); | 
						|
 | 
						|
        if (!nextDecl || nextDecl.type !== 'decl') { | 
						|
            return; | 
						|
        } | 
						|
 | 
						|
        const index = directions.indexOf(nextDecl.prop); | 
						|
 | 
						|
        if (!~index) { | 
						|
            return; | 
						|
        } | 
						|
 | 
						|
        const values = (0, _parseWsc2.default)(decl.value); | 
						|
        const nextValues = (0, _parseWsc2.default)(nextDecl.value); | 
						|
 | 
						|
        if (!(0, _validateWsc.isValidWsc)(values) || !(0, _validateWsc.isValidWsc)(nextValues)) { | 
						|
            return; | 
						|
        } | 
						|
 | 
						|
        const config = { | 
						|
            values, | 
						|
            nextValues, | 
						|
            decl, | 
						|
            nextDecl, | 
						|
            index | 
						|
        }; | 
						|
 | 
						|
        return mergeRedundant(config); | 
						|
    }); | 
						|
 | 
						|
    rule.walkDecls(/^border($|-(top|right|bottom|left)$)/i, decl => { | 
						|
        let values = (0, _parseWsc2.default)(decl.value); | 
						|
 | 
						|
        if (!(0, _validateWsc.isValidWsc)(values)) { | 
						|
            return; | 
						|
        } | 
						|
 | 
						|
        const position = directions.indexOf(decl.prop); | 
						|
        let dirs = [...directions]; | 
						|
 | 
						|
        dirs.splice(position, 1); | 
						|
        wsc.forEach((d, i) => { | 
						|
            const props = dirs.map(dir => `${dir}-${d}`); | 
						|
 | 
						|
            (0, _mergeRules2.default)(rule, [decl.prop, ...props], rules => { | 
						|
                if (!rules.includes(decl)) { | 
						|
                    return; | 
						|
                } | 
						|
 | 
						|
                const longhands = rules.filter(p => p !== decl); | 
						|
 | 
						|
                if (longhands[0].value.toLowerCase() === longhands[1].value.toLowerCase() && longhands[1].value.toLowerCase() === longhands[2].value.toLowerCase() && longhands[0].value.toLowerCase() === values[i].toLowerCase()) { | 
						|
                    longhands.forEach(_remove2.default); | 
						|
 | 
						|
                    (0, _insertCloned2.default)(decl.parent, decl, { | 
						|
                        prop: borderProperty(d), | 
						|
                        value: values[i] | 
						|
                    }); | 
						|
 | 
						|
                    values[i] = null; | 
						|
                } | 
						|
            }); | 
						|
 | 
						|
            const newValue = values.join(' '); | 
						|
 | 
						|
            if (newValue) { | 
						|
                decl.value = newValue; | 
						|
            } else { | 
						|
                decl.remove(); | 
						|
            } | 
						|
        }); | 
						|
    }); | 
						|
 | 
						|
    // clean-up values | 
						|
    rule.walkDecls(/^border($|-(top|right|bottom|left)$)/i, decl => { | 
						|
        decl.value = (0, _minifyWsc2.default)(decl.value); | 
						|
    }); | 
						|
 | 
						|
    // border-spacing-hv -> border-spacing | 
						|
    rule.walkDecls(/^border-spacing$/i, decl => { | 
						|
        const value = _postcss.list.space(decl.value); | 
						|
 | 
						|
        // merge vertical and horizontal dups | 
						|
        if (value.length > 1 && value[0] === value[1]) { | 
						|
            decl.value = value.slice(1).join(' '); | 
						|
        } | 
						|
    }); | 
						|
 | 
						|
    // clean-up rules | 
						|
    decls = (0, _getDecls2.default)(rule, allProperties); | 
						|
 | 
						|
    while (decls.length) { | 
						|
        const lastNode = decls[decls.length - 1]; | 
						|
        const lastPart = lastNode.prop.split('-').pop(); | 
						|
 | 
						|
        // remove properties of lower precedence | 
						|
        const lesser = decls.filter(node => !(0, _stylehacks.detect)(lastNode) && !(0, _stylehacks.detect)(node) && !(0, _isCustomProp2.default)(lastNode) && node !== lastNode && node.important === lastNode.important && getLevel(node.prop) > getLevel(lastNode.prop) && (!!~node.prop.toLowerCase().indexOf(lastNode.prop) || node.prop.toLowerCase().endsWith(lastPart))); | 
						|
 | 
						|
        lesser.forEach(_remove2.default); | 
						|
        decls = decls.filter(node => !~lesser.indexOf(node)); | 
						|
 | 
						|
        // get duplicate properties | 
						|
        let duplicates = decls.filter(node => !(0, _stylehacks.detect)(lastNode) && !(0, _stylehacks.detect)(node) && node !== lastNode && node.important === lastNode.important && node.prop === lastNode.prop && !(!(0, _isCustomProp2.default)(node) && (0, _isCustomProp2.default)(lastNode))); | 
						|
 | 
						|
        if (duplicates.length) { | 
						|
            if (/hsla\(|rgba\(/i.test(getColorValue(lastNode))) { | 
						|
                const preserve = duplicates.filter(node => !/hsla\(|rgba\(/i.test(getColorValue(node))).pop(); | 
						|
 | 
						|
                duplicates = duplicates.filter(node => node !== preserve); | 
						|
            } | 
						|
 | 
						|
            duplicates.forEach(_remove2.default); | 
						|
        } | 
						|
 | 
						|
        decls = decls.filter(node => node !== lastNode && !~duplicates.indexOf(node)); | 
						|
    } | 
						|
} | 
						|
 | 
						|
exports.default = { | 
						|
    explode, | 
						|
    merge | 
						|
}; | 
						|
module.exports = exports['default']; |