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css-tree - npm Package Compare versions
Comparing version 1.0.0-alpha21 to 1.0.0-alpha22
@@ -0,1 +1,16 @@ | ||
| ## 1.0.0-alpha22 (September 8, 2017) | ||
| - Parser | ||
| - Fixed exception on parsing of unclosed `{}-block` in tolerant mode | ||
| - Added tolerant mode support for `DeclarationList` | ||
| - Added standalone entry point, i.e. default parser can be used via `require('css-tree/lib/parser')` (#47) | ||
| - Generator | ||
| - Changed generator to produce `+n` when `AnPlusB.a` is `+1` to be "round-trip" with parser | ||
| - Added standalone entry point, i.e. default generators can be used via `require('css-tree/lib/generator')` | ||
| - Walker | ||
| - Added standalone entry point, i.e. default walkers can be used via `require('css-tree/lib/walker')` (#47) | ||
| - Lexer | ||
| - Added `default` keyword to the list of invalid values for `<custom-ident>` (since it reversed per [spec](https://www.w3.org/TR/css-values/#custom-idents)) | ||
| - Convertors (`toPlainObject()` and `fromPlainObject()`) moved to `lib/convertor` (entry point is `require('css-tree/lib/convertor')`) | ||
| ## 1.0.0-alpha21 (September 5, 2017) | ||
@@ -2,0 +17,0 @@ |
@@ -1,118 +0,4 @@ | ||
| 'use strict'; | ||
| var createGenerator = require('./create'); | ||
| var config = require('../syntax/config/parser'); | ||
| var hasOwnProperty = Object.prototype.hasOwnProperty; | ||
| var noop = function() {}; | ||
| function each(processChunk, node) { | ||
| var list = node.children; | ||
| var cursor = list.head; | ||
| while (cursor !== null) { | ||
| this.generate(processChunk, cursor.data, cursor, list); | ||
| cursor = cursor.next; | ||
| } | ||
| } | ||
| function eachComma(processChunk, node) { | ||
| var list = node.children; | ||
| var cursor = list.head; | ||
| while (cursor !== null) { | ||
| if (cursor.prev) { | ||
| processChunk(','); | ||
| } | ||
| this.generate(processChunk, cursor.data, cursor, list); | ||
| cursor = cursor.next; | ||
| } | ||
| } | ||
| function createGenerator(types) { | ||
| var context = { | ||
| generate: function(processChunk, node, item, list) { | ||
| if (hasOwnProperty.call(types, node.type)) { | ||
| types[node.type].call(this, processChunk, node, item, list); | ||
| } else { | ||
| throw new Error('Unknown node type: ' + node.type); | ||
| } | ||
| }, | ||
| each: each, | ||
| eachComma: eachComma | ||
| }; | ||
| return function(node, fn) { | ||
| if (typeof fn !== 'function') { | ||
| // default generator concats all chunks in a single string | ||
| var buffer = []; | ||
| context.generate(function(chunk) { | ||
| buffer.push(chunk); | ||
| }, node); | ||
| return buffer.join(''); | ||
| } | ||
| context.generate(fn, node); | ||
| }; | ||
| } | ||
| function createMarkupGenerator(types) { | ||
| var context = { | ||
| generate: function(processChunk, node, item, list) { | ||
| if (hasOwnProperty.call(types, node.type)) { | ||
| var nodeBuffer = []; | ||
| types[node.type].call(this, function(chunk) { | ||
| nodeBuffer.push(chunk); | ||
| }, node, item, list); | ||
| processChunk({ | ||
| node: node, | ||
| value: nodeBuffer | ||
| }); | ||
| } else { | ||
| throw new Error('Unknown node type: ' + node.type); | ||
| } | ||
| }, | ||
| each: each, | ||
| eachComma: eachComma | ||
| }; | ||
| return function(node, enter, leave) { | ||
| function walk(node, buffer) { | ||
| var value = node.value; | ||
| enter(node.node, buffer, value); | ||
| if (typeof value === 'string') { | ||
| buffer += value; | ||
| } else { | ||
| for (var i = 0; i < value.length; i++) { | ||
| if (typeof value[i] === 'string') { | ||
| buffer += value[i]; | ||
| } else { | ||
| buffer = walk(value[i], buffer); | ||
| } | ||
| } | ||
| } | ||
| leave(node.node, buffer, value); | ||
| return buffer; | ||
| } | ||
| if (typeof enter !== 'function') { | ||
| enter = noop; | ||
| } | ||
| if (typeof leave !== 'function') { | ||
| leave = noop; | ||
| } | ||
| var buffer = []; | ||
| context.generate(function() { | ||
| buffer.push.apply(buffer, arguments); | ||
| }, node); | ||
| return walk(buffer[0], ''); | ||
| }; | ||
| } | ||
| module.exports = { | ||
| createGenerator: createGenerator, | ||
| createMarkupGenerator: createMarkupGenerator, | ||
| sourceMap: require('./sourceMap') | ||
| }; | ||
| module.exports = createGenerator(config); |
| 'use strict'; | ||
| module.exports = require('./syntax/default'); | ||
| module.exports = require('./syntax'); |
@@ -169,2 +169,3 @@ 'use strict'; | ||
| // https://developer.mozilla.org/en-US/docs/Web/CSS/custom-ident | ||
| // https://drafts.csswg.org/css-values-4/#identifier-value | ||
| function customIdent(node) { | ||
@@ -177,3 +178,4 @@ if (node.data.type !== 'Identifier') { | ||
| // can't be a global CSS value | ||
| // § 3.2. Author-defined Identifiers: the <custom-ident> type | ||
| // The CSS-wide keywords are not valid <custom-ident>s | ||
| if (name === 'unset' || name === 'initial' || name === 'inherit') { | ||
@@ -183,2 +185,7 @@ return false; | ||
| // The default keyword is reserved and is also not a valid <custom-ident> | ||
| if (name === 'default') { | ||
| return false; | ||
| } | ||
| // TODO: ignore property specific keywords (as described https://developer.mozilla.org/en-US/docs/Web/CSS/custom-ident) | ||
@@ -185,0 +192,0 @@ |
@@ -13,2 +13,3 @@ 'use strict'; | ||
| var search = require('./search'); | ||
| var getStructureFromConfig = require('./structure').getStructureFromConfig; | ||
| var cssWideKeywords = parse('inherit | initial | unset'); | ||
@@ -125,3 +126,3 @@ var cssWideKeywordsWithExpression = parse('inherit | initial | unset | <expression>'); | ||
| this.types = {}; | ||
| this.structure = structure; | ||
| this.structure = structure || getStructureFromConfig(config); | ||
@@ -128,0 +129,0 @@ if (config) { |
@@ -1,95 +0,4 @@ | ||
| 'use strict'; | ||
| var createParser = require('./create'); | ||
| var config = require('../syntax/config/parser'); | ||
| var Tokenizer = require('../tokenizer'); | ||
| var sequence = require('./sequence'); | ||
| var noop = function() {}; | ||
| module.exports = function createParser(config) { | ||
| var parser = { | ||
| scanner: new Tokenizer(), | ||
| filename: '<unknown>', | ||
| needPositions: false, | ||
| tolerant: false, | ||
| onParseError: noop, | ||
| parseAtruleExpression: true, | ||
| parseSelector: true, | ||
| parseValue: true, | ||
| parseCustomProperty: false, | ||
| readSequence: sequence, | ||
| tolerantParse: function(consumer, fallback) { | ||
| if (this.tolerant) { | ||
| var start = this.scanner.currentToken; | ||
| try { | ||
| return consumer.call(this); | ||
| } catch (e) { | ||
| this.onParseError(e); | ||
| return fallback.call(this, start); | ||
| } | ||
| } else { | ||
| return consumer.call(this); | ||
| } | ||
| }, | ||
| getLocation: function(start, end) { | ||
| if (this.needPositions) { | ||
| return this.scanner.getLocationRange( | ||
| start, | ||
| end, | ||
| this.filename | ||
| ); | ||
| } | ||
| return null; | ||
| }, | ||
| getLocationFromList: function(list) { | ||
| if (this.needPositions) { | ||
| return this.scanner.getLocationRange( | ||
| list.head !== null ? list.first().loc.start.offset - this.scanner.startOffset : this.scanner.tokenStart, | ||
| list.head !== null ? list.last().loc.end.offset - this.scanner.startOffset : this.scanner.tokenStart, | ||
| this.filename | ||
| ); | ||
| } | ||
| return null; | ||
| }, | ||
| parse: function(source, options) { | ||
| options = options || {}; | ||
| var context = options.context || 'default'; | ||
| var ast; | ||
| this.scanner.setSource(source, options.offset, options.line, options.column); | ||
| this.filename = options.filename || '<unknown>'; | ||
| this.needPositions = Boolean(options.positions); | ||
| this.tolerant = Boolean(options.tolerant); | ||
| this.onParseError = typeof options.onParseError === 'function' ? options.onParseError : noop; | ||
| this.parseAtruleExpression = 'parseAtruleExpression' in options ? Boolean(options.parseAtruleExpression) : true; | ||
| this.parseSelector = 'parseSelector' in options ? Boolean(options.parseSelector) : true; | ||
| this.parseValue = 'parseValue' in options ? Boolean(options.parseValue) : true; | ||
| this.parseCustomProperty = 'parseCustomProperty' in options ? Boolean(options.parseCustomProperty) : false; | ||
| if (!this.context.hasOwnProperty(context)) { | ||
| throw new Error('Unknown context `' + context + '`'); | ||
| } | ||
| ast = this.context[context].call(this, options); | ||
| if (!this.scanner.eof) { | ||
| this.scanner.error(); | ||
| } | ||
| // console.log(JSON.stringify(ast, null, 4)); | ||
| return ast; | ||
| } | ||
| }; | ||
| for (var key in config) { | ||
| parser[key] = config[key]; | ||
| } | ||
| return parser.parse.bind(parser); | ||
| }; | ||
| module.exports = createParser(config); |
@@ -1,15 +0,9 @@ | ||
| var hasOwnProperty = Object.prototype.hasOwnProperty; | ||
| var List = require('../utils/list'); | ||
| var createParser = require('../parser'); | ||
| var createGenerator = require('../generator').createGenerator; | ||
| var createMarkupGenerator = require('../generator').createMarkupGenerator; | ||
| var sourceMapGenerator = require('../generator').sourceMap; | ||
| var createConvertors = require('../utils/convert'); | ||
| var createWalker = require('../walker'); | ||
| var names = require('../utils/names'); | ||
| var mix = require('./mix'); | ||
| function merge() { | ||
| var dest = {}; | ||
| function assign(dest, src) { | ||
| for (var key in src) { | ||
| dest[key] = src[key]; | ||
| for (var i = 0; i < arguments.length; i++) { | ||
| var src = arguments[i]; | ||
| for (var key in src) { | ||
| dest[key] = src[key]; | ||
| } | ||
| } | ||
@@ -20,277 +14,8 @@ | ||
| function createParseContext(name) { | ||
| return function() { | ||
| return this[name](); | ||
| }; | ||
| } | ||
| function isValidNumber(value) { | ||
| // Number.isInteger(value) && value >= 0 | ||
| return ( | ||
| typeof value === 'number' && | ||
| isFinite(value) && | ||
| Math.floor(value) === value && | ||
| value >= 0 | ||
| ); | ||
| } | ||
| function isValidLocation(loc) { | ||
| return ( | ||
| Boolean(loc) && | ||
| isValidNumber(loc.offset) && | ||
| isValidNumber(loc.line) && | ||
| isValidNumber(loc.column) | ||
| ); | ||
| } | ||
| function createNodeStructureChecker(type, fields) { | ||
| return function checkNode(node, warn) { | ||
| if (!node || node.constructor !== Object) { | ||
| return warn('Type of node should be an object'); | ||
| } | ||
| for (var key in node) { | ||
| if (key === 'type') { | ||
| if (node.type !== type) { | ||
| warn('Wrong node type `' + node.type + '` but expected `' + type + '`'); | ||
| } | ||
| } else if (key === 'loc') { | ||
| if (node.loc === null) { | ||
| continue; | ||
| } else if (node.loc && node.loc.constructor === Object) { | ||
| if (typeof node.loc.source === 'string' && | ||
| isValidLocation(node.loc.start) && | ||
| isValidLocation(node.loc.end)) { | ||
| continue; | ||
| } | ||
| } | ||
| warn('Wrong value for `' + type + '.' + key + '` field'); | ||
| } else if (fields.hasOwnProperty(key)) { | ||
| for (var i = 0, valid = false; !valid && i < fields[key].length; i++) { | ||
| var fieldType = fields[key][i]; | ||
| switch (fieldType) { | ||
| case String: | ||
| valid = typeof node[key] === 'string'; | ||
| break; | ||
| case Boolean: | ||
| valid = typeof node[key] === 'boolean'; | ||
| break; | ||
| case null: | ||
| valid = node[key] === null; | ||
| break; | ||
| default: | ||
| if (typeof fieldType === 'string') { | ||
| valid = node[key] && node[key].type === fieldType; | ||
| } else if (Array.isArray(fieldType)) { | ||
| valid = node[key] instanceof List; | ||
| } | ||
| } | ||
| } | ||
| if (!valid) { | ||
| warn('Wrong value for `' + type + '.' + key + '` field'); | ||
| } | ||
| } else { | ||
| warn('Unknown field `' + key + '` for ' + type); | ||
| } | ||
| } | ||
| for (var key in fields) { | ||
| if (hasOwnProperty.call(node, key) === false) { | ||
| warn('Field `' + type + '.' + key + '` is missed'); | ||
| } | ||
| } | ||
| }; | ||
| } | ||
| function processStructure(name, nodeType) { | ||
| var structure = nodeType.structure; | ||
| var fields = { | ||
| type: String, | ||
| loc: true | ||
| }; | ||
| var walkers = []; | ||
| var docs = { | ||
| type: '"' + name + '"' | ||
| }; | ||
| for (var key in structure) { | ||
| var walker = { | ||
| name: key, | ||
| type: false, | ||
| nullable: false | ||
| }; | ||
| var docsTypes = []; | ||
| var fieldTypes = fields[key] = Array.isArray(structure[key]) | ||
| ? structure[key].slice() | ||
| : [structure[key]]; | ||
| for (var i = 0; i < fieldTypes.length; i++) { | ||
| var fieldType = fieldTypes[i]; | ||
| if (fieldType === String || fieldType === Boolean) { | ||
| docsTypes.push(fieldType.name); | ||
| } else if (fieldType === null) { | ||
| walker.nullable = true; | ||
| docsTypes.push('null'); | ||
| } else if (typeof fieldType === 'string') { | ||
| walker.type = 'node'; | ||
| docsTypes.push('<' + fieldType + '>'); | ||
| } else if (Array.isArray(fieldType)) { | ||
| walker.type = 'list'; | ||
| docsTypes.push('List'); // TODO: use type enum | ||
| } else { | ||
| throw new Error('Wrong value in `' + name + '` structure definition'); | ||
| } | ||
| } | ||
| docs[key] = docsTypes.join(' | '); | ||
| if (walker.type) { | ||
| walkers.push(walker); | ||
| } | ||
| } | ||
| return { | ||
| docs: docs, | ||
| check: createNodeStructureChecker(name, fields), | ||
| walk: walkers.length ? { | ||
| context: nodeType.walkContext, | ||
| fields: walkers | ||
| } : null | ||
| }; | ||
| } | ||
| function createSyntax(config) { | ||
| var parser = { context: {}, scope: {}, atrule: {}, pseudo: {} }; | ||
| var walker = { type: {} }; | ||
| var generator = {}; | ||
| var lexer = { structure: {} }; | ||
| if (config.parseContext) { | ||
| for (var name in config.parseContext) { | ||
| switch (typeof config.parseContext[name]) { | ||
| case 'function': | ||
| parser.context[name] = config.parseContext[name]; | ||
| break; | ||
| case 'string': | ||
| parser.context[name] = createParseContext(config.parseContext[name]); | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| if (config.scope) { | ||
| for (var name in config.scope) { | ||
| parser.scope[name] = config.scope[name]; | ||
| } | ||
| } | ||
| if (config.atrule) { | ||
| for (var name in config.atrule) { | ||
| var atrule = config.atrule[name]; | ||
| if (atrule.parse) { | ||
| parser.atrule[name] = atrule.parse; | ||
| } | ||
| } | ||
| } | ||
| if (config.pseudo) { | ||
| for (var name in config.pseudo) { | ||
| var pseudo = config.pseudo[name]; | ||
| if (pseudo.parse) { | ||
| parser.pseudo[name] = pseudo.parse; | ||
| } | ||
| } | ||
| } | ||
| if (config.node) { | ||
| for (var name in config.node) { | ||
| var nodeType = config.node[name]; | ||
| parser[name] = nodeType.parse; | ||
| generator[name] = nodeType.generate; | ||
| if (nodeType.structure) { | ||
| var structure = processStructure(name, nodeType); | ||
| lexer.structure[name] = { | ||
| docs: structure.docs, | ||
| check: structure.check | ||
| }; | ||
| if (structure.walk) { | ||
| walker.type[name] = structure.walk; | ||
| } | ||
| } else { | ||
| throw new Error('Missed `structure` field in `' + name + '` node type definition'); | ||
| } | ||
| } | ||
| } | ||
| var parse = createParser(parser); | ||
| var Lexer = require('../lexer/Lexer'); | ||
| var walker = createWalker(walker.type); | ||
| var convertors = createConvertors(walker); | ||
| var markupGenerator = createMarkupGenerator(generator); | ||
| var syntax = { | ||
| List: require('../utils/list'), | ||
| Tokenizer: require('../tokenizer'), | ||
| Lexer: require('../lexer/Lexer'), | ||
| property: names.property, | ||
| keyword: names.keyword, | ||
| lexer: null, | ||
| syntax: require('../lexer'), | ||
| createLexer: function(config) { | ||
| return new Lexer(config, syntax, lexer.structure); | ||
| }, | ||
| parse: parse, | ||
| walk: walker.all, | ||
| walkUp: walker.allUp, | ||
| walkRules: walker.rules, | ||
| walkRulesRight: walker.rulesRight, | ||
| walkDeclarations: walker.declarations, | ||
| translate: createGenerator(generator), | ||
| translateWithSourceMap: function(node) { | ||
| return sourceMapGenerator(markupGenerator, node); | ||
| }, | ||
| translateMarkup: markupGenerator, | ||
| clone: require('../utils/clone'), | ||
| fromPlainObject: convertors.fromPlainObject, | ||
| toPlainObject: convertors.toPlainObject, | ||
| createSyntax: function(config) { | ||
| return createSyntax(mix({}, config)); | ||
| }, | ||
| fork: function(extension) { | ||
| var base = mix({}, config); // copy of config | ||
| return createSyntax( | ||
| typeof extension === 'function' | ||
| ? extension(base, assign) | ||
| : mix(base, extension) | ||
| ); | ||
| } | ||
| }; | ||
| syntax.lexer = new Lexer({ | ||
| generic: true, | ||
| types: config.types, | ||
| properties: config.properties | ||
| }, syntax, lexer.structure); | ||
| return syntax; | ||
| }; | ||
| exports.create = function(config) { | ||
| return createSyntax(mix({}, config)); | ||
| }; | ||
| module.exports = require('./create').create( | ||
| merge( | ||
| require('./config/lexer'), | ||
| require('./config/parser'), | ||
| require('./config/walker') | ||
| ) | ||
| ); |
@@ -160,3 +160,4 @@ var cmpChar = require('../../tokenizer').cmpChar; | ||
| processChunk( | ||
| node.a === '+1' || node.a === '1' ? 'n' : | ||
| node.a === '+1' ? '+n' : | ||
| node.a === '1' ? 'n' : | ||
| node.a === '-1' ? '-n' : | ||
@@ -163,0 +164,0 @@ node.a + 'n' |
@@ -51,3 +51,5 @@ var List = require('../../utils/list'); | ||
| this.scanner.eat(RIGHTCURLYBRACKET); | ||
| if (!this.tolerant || !this.scanner.eof) { | ||
| this.scanner.eat(RIGHTCURLYBRACKET); | ||
| } | ||
@@ -54,0 +56,0 @@ return { |
@@ -8,2 +8,6 @@ var List = require('../../utils/list'); | ||
| function consumeRaw(startToken) { | ||
| return this.Raw(startToken, 0, SEMICOLON, true, true); | ||
| } | ||
| module.exports = { | ||
@@ -27,3 +31,3 @@ name: 'DeclarationList', | ||
| default: | ||
| children.appendData(this.Declaration()); | ||
| children.appendData(this.tolerantParse(this.Declaration, consumeRaw)); | ||
| } | ||
@@ -30,0 +34,0 @@ } |
@@ -76,6 +76,14 @@ 'use strict'; | ||
| // https://drafts.csswg.org/css-syntax/#tokenizer-definitions | ||
| // > non-ASCII code point | ||
| // > A code point with a value equal to or greater than U+0080 <control> | ||
| // > name-start code point | ||
| // > A letter, a non-ASCII code point, or U+005F LOW LINE (_). | ||
| // > name code point | ||
| // > A name-start code point, a digit, or U+002D HYPHEN-MINUS (-) | ||
| // That means only ASCII code points has a special meaning and we a maps for 0..127 codes only | ||
| var SafeUint32Array = typeof Uint32Array !== 'undefined' ? Uint32Array : Array; // fallback on Array when TypedArray is not supported | ||
| var SYMBOL_TYPE = new SafeUint32Array(Math.max.apply(null, Object.keys(NAME).map(Number)) + 1); | ||
| var PUNCTUATION = new SafeUint32Array(SYMBOL_TYPE.length); | ||
| var STOP_URL_RAW = new SafeUint32Array(SYMBOL_TYPE.length); | ||
| var SYMBOL_TYPE = new SafeUint32Array(0x80); | ||
| var PUNCTUATION = new SafeUint32Array(0x80); | ||
| var STOP_URL_RAW = new SafeUint32Array(0x80); | ||
@@ -82,0 +90,0 @@ for (var i = 0; i < SYMBOL_TYPE.length; i++) { |
@@ -9,3 +9,2 @@ 'use strict'; | ||
| var SYMBOL_TYPE = constants.SYMBOL_TYPE; | ||
| var SYMBOL_TYPE_LENGTH = SYMBOL_TYPE.length; | ||
@@ -122,3 +121,3 @@ var utils = require('./utils'); | ||
| var code = source.charCodeAt(offset); | ||
| var type = code < SYMBOL_TYPE_LENGTH ? SYMBOL_TYPE[code] : IDENTIFIER; | ||
| var type = code < 0x80 ? SYMBOL_TYPE[code] : IDENTIFIER; | ||
@@ -125,0 +124,0 @@ balance[tokenCount] = sourceLength; |
@@ -5,6 +5,3 @@ 'use strict'; | ||
| var PUNCTUATION = constants.PUNCTUATION; | ||
| var SYMBOL_TYPE = constants.SYMBOL_TYPE; | ||
| var SYMBOL_TYPE_LENGTH = SYMBOL_TYPE.length; | ||
| var STOP_URL_RAW = constants.STOP_URL_RAW; | ||
| var STOP_URL_RAW_LENGTH = STOP_URL_RAW.length; | ||
| var TYPE = constants.TYPE; | ||
@@ -221,3 +218,3 @@ var FULLSTOP = TYPE.FullStop; | ||
| offset = findEscaseEnd(source, offset + 1); | ||
| } else if (code < SYMBOL_TYPE_LENGTH && PUNCTUATION[code] === PUNCTUATOR) { | ||
| } else if (code < 0x80 && PUNCTUATION[code] === PUNCTUATOR) { | ||
| break; | ||
@@ -236,3 +233,3 @@ } | ||
| offset = findEscaseEnd(source, offset + 1); | ||
| } else if (code < STOP_URL_RAW_LENGTH && STOP_URL_RAW[code] === 1) { | ||
| } else if (code < 0x80 && STOP_URL_RAW[code] === 1) { | ||
| break; | ||
@@ -239,0 +236,0 @@ } |
@@ -1,214 +0,4 @@ | ||
| 'use strict'; | ||
| var createWalker = require('./create'); | ||
| var config = require('../syntax/config/walker'); | ||
| function walkRules(node, item, list) { | ||
| switch (node.type) { | ||
| case 'StyleSheet': | ||
| var oldStylesheet = this.stylesheet; | ||
| this.stylesheet = node; | ||
| node.children.each(walkRules, this); | ||
| this.stylesheet = oldStylesheet; | ||
| break; | ||
| case 'Atrule': | ||
| if (node.block !== null) { | ||
| var oldAtrule = this.atrule; | ||
| this.atrule = node; | ||
| walkRules.call(this, node.block); | ||
| this.atrule = oldAtrule; | ||
| } | ||
| this.fn(node, item, list); | ||
| break; | ||
| case 'Rule': | ||
| this.fn(node, item, list); | ||
| var oldRule = this.rule; | ||
| this.rule = node; | ||
| walkRules.call(this, node.block); | ||
| this.rule = oldRule; | ||
| break; | ||
| case 'Block': | ||
| var oldBlock = this.block; | ||
| this.block = node; | ||
| node.children.each(walkRules, this); | ||
| this.block = oldBlock; | ||
| break; | ||
| } | ||
| } | ||
| function walkRulesRight(node, item, list) { | ||
| switch (node.type) { | ||
| case 'StyleSheet': | ||
| var oldStylesheet = this.stylesheet; | ||
| this.stylesheet = node; | ||
| node.children.eachRight(walkRulesRight, this); | ||
| this.stylesheet = oldStylesheet; | ||
| break; | ||
| case 'Atrule': | ||
| if (node.block !== null) { | ||
| var oldAtrule = this.atrule; | ||
| this.atrule = node; | ||
| walkRulesRight.call(this, node.block); | ||
| this.atrule = oldAtrule; | ||
| } | ||
| this.fn(node, item, list); | ||
| break; | ||
| case 'Rule': | ||
| var oldRule = this.rule; | ||
| this.rule = node; | ||
| walkRulesRight.call(this, node.block); | ||
| this.rule = oldRule; | ||
| this.fn(node, item, list); | ||
| break; | ||
| case 'Block': | ||
| var oldBlock = this.block; | ||
| this.block = node; | ||
| node.children.eachRight(walkRulesRight, this); | ||
| this.block = oldBlock; | ||
| break; | ||
| } | ||
| } | ||
| function walkDeclarations(node) { | ||
| switch (node.type) { | ||
| case 'StyleSheet': | ||
| var oldStylesheet = this.stylesheet; | ||
| this.stylesheet = node; | ||
| node.children.each(walkDeclarations, this); | ||
| this.stylesheet = oldStylesheet; | ||
| break; | ||
| case 'Atrule': | ||
| if (node.block !== null) { | ||
| var oldAtrule = this.atrule; | ||
| this.atrule = node; | ||
| walkDeclarations.call(this, node.block); | ||
| this.atrule = oldAtrule; | ||
| } | ||
| break; | ||
| case 'Rule': | ||
| var oldRule = this.rule; | ||
| this.rule = node; | ||
| if (node.block !== null) { | ||
| walkDeclarations.call(this, node.block); | ||
| } | ||
| this.rule = oldRule; | ||
| break; | ||
| case 'Block': | ||
| node.children.each(function(node, item, list) { | ||
| if (node.type === 'Declaration') { | ||
| this.fn(node, item, list); | ||
| } else { | ||
| walkDeclarations.call(this, node); | ||
| } | ||
| }, this); | ||
| break; | ||
| } | ||
| } | ||
| function createContext(root, fn) { | ||
| var context = { | ||
| fn: fn, | ||
| root: root, | ||
| stylesheet: null, | ||
| atrule: null, | ||
| atruleExpression: null, | ||
| rule: null, | ||
| selector: null, | ||
| block: null, | ||
| declaration: null, | ||
| function: null | ||
| }; | ||
| return context; | ||
| } | ||
| module.exports = function createWalker(types) { | ||
| var walkers = {}; | ||
| for (var name in types) { | ||
| var config = types[name]; | ||
| walkers[name] = Function('node', 'context', 'walk', | ||
| (config.context ? 'var old = context.' + config.context + ';\ncontext.' + config.context + ' = node;\n' : '') + | ||
| config.fields.map(function(field) { | ||
| var line = field.type === 'list' | ||
| ? 'node.' + field.name + '.each(walk);' | ||
| : 'walk(node.' + field.name + ');'; | ||
| if (field.nullable) { | ||
| line = 'if (node.' + field.name + ') {\n ' + line + '}'; | ||
| } | ||
| return line; | ||
| }).join('\n') + | ||
| (config.context ? '\ncontext.' + config.context + ' = old;' : '') | ||
| ); | ||
| } | ||
| return { | ||
| all: function(root, fn) { | ||
| function walk(node, item, list) { | ||
| fn.call(context, node, item, list); | ||
| if (walkers.hasOwnProperty(node.type)) { | ||
| walkers[node.type](node, context, walk); | ||
| } | ||
| } | ||
| var context = createContext(root, fn); | ||
| walk(root); | ||
| }, | ||
| allUp: function(root, fn) { | ||
| function walk(node, item, list) { | ||
| if (walkers.hasOwnProperty(node.type)) { | ||
| walkers[node.type](node, context, walk); | ||
| } | ||
| fn.call(context, node, item, list); | ||
| } | ||
| var context = createContext(root, fn); | ||
| walk(root); | ||
| }, | ||
| rules: function(root, fn) { | ||
| walkRules.call(createContext(root, fn), root); | ||
| }, | ||
| rulesRight: function(root, fn) { | ||
| walkRulesRight.call(createContext(root, fn), root); | ||
| }, | ||
| declarations: function(root, fn) { | ||
| walkDeclarations.call(createContext(root, fn), root); | ||
| } | ||
| }; | ||
| }; | ||
| module.exports = createWalker(config); |
| { | ||
| "name": "css-tree", | ||
| "version": "1.0.0-alpha21", | ||
| "version": "1.0.0-alpha22", | ||
| "description": "Fast detailed CSS parser", | ||
@@ -5,0 +5,0 @@ "keywords": [ |
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New alerts
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Uses eval
Supply chain riskPackage uses dynamic code execution (e.g., eval()), which is a dangerous practice. This can prevent the code from running in certain environments and increases the risk that the code may contain exploits or malicious behavior.
Found 1 instance in 1 package
Fixed alerts
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Uses eval
Supply chain riskPackage uses dynamic code execution (e.g., eval()), which is a dangerous practice. This can prevent the code from running in certain environments and increases the risk that the code may contain exploits or malicious behavior.
Found 1 instance in 1 package
Improved metrics
- Total package byte prevSize
- increased by0.8%
571730
- Number of package files
- increased by10.34%
128
- Lines of code
- increased by1.54%
7800
No dependency changes