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更新前端静态网页获取方式，放弃使用后端获取api

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## 1.0.0-alpha.37 (October 22, 2019)
- Bumped `source-map` version to `^0.6.1` to fix source map generation inconsistency across node.js versions due to mappings sorting bug and v8 moving to [a stable Array#sort](https://v8.dev/blog/array-sort) ([fix commit](https://github.com/mozilla/source-map/commit/f35a2e4212dd025cb5e1fc219e7ac8a4b96c2cc9) in `source-map`)
## 1.0.0-alpha.36 (October 13, 2019)
- Dropped support for Node < 8
- Updated dev deps (fixed `npm audit` issues)
- Reworked build pipeline
- Package provides `dist/csstree.js` and `dist/csstree.min.js` now (instead of single `dist/csstree.js` that was a min version)
- Bundle size (min version) reduced from 191Kb to 158Kb due to some optimisations
- Definition syntax
- Renamed `grammar` into `definitionSyntax` (named per spec)
- Added `compact` option to `generate()` method to avoid formatting (spaces) when possible
- Lexer
- Changed `dump()` method to produce syntaxes in compact form by default
## 1.0.0-alpha.35 (October 7, 2019)
- Walker
- Changed implementation to avoid runtime compilation due to CSP issues (see #91, #109)
- Added `find()`, `findLast()` and `findAll()` methods (e.g. `csstree.find(ast, node => node.type === 'ClassSelector')`)
## 1.0.0-alpha.34 (July 27, 2019)
- Tokenizer
- Added `isBOM()` function
- Added `charCodeCategory()` function
- Removed `firstCharOffset()` function (use `isBOM()` instead)
- Removed `CHARCODE` dictionary
- Removed `INPUT_STREAM_CODE*` dictionaries
- Lexer
- Allowed comments in matching value (just ignore them like whitespaces)
- Increased iteration count in value matching from 10k up to 15k
- Fixed missed `debugger` (#104)
## 1.0.0-alpha.33 (July 11, 2019)
- Lexer
- Fixed low priority productions matching by changing an approach for robust one (#103)
## 1.0.0-alpha.32 (July 11, 2019)
- Lexer
- Fixed low priority productions matching in long `||-` and `&&-` groups (#103)
## 1.0.0-alpha.31 (July 11, 2019)
- Bumped `mdn/data` to `2.0.4` (#99)
- Lexer
- Added [bracketed range notation](https://drafts.csswg.org/css-values-4/#numeric-ranges) support and related refactoring
- Removed `<number-zero-one>`, `<number-one-or-greater>` and `<positive-integer>` from generic types. In fact, types moved to patch, because those types can be expressed in a regular grammar due to bracketed range notation implemented
- Added support for multiple token string matching
- Improved `<custom-ident>` production matching to claim the keyword only if no other unfulfilled production can claim it (#101)
- Improved `<length>` production matching to claim "unitless zero" only if no other unfulfilled production can claim it
- Changed lexer's constructor to prevent generic types override when used
- Fixed large `||`- and `&&`-group matching, matching continues from the beginning on term match (#85)
- Fixed checking that value has `var()` occurrences when value is a string (such values can't be matched on syntax currently and fail with specific error that can be used for ignorance in validation tools)
- Fixed `<declaration-value>` and `<any-value>` matching when a value contains a function, parentheses or braces
## 1.0.0-alpha.30 (July 3, 2019)
- Bumped `mdn/data` to `~2.0.3`
- Removed type removals from `mdn/data` due to lack of some generic types and specific lexer restictions (since lexer was reworked, see below)
- Reduced and updated patches
- Tokenizer
- Reworked tokenizer itself to compliment [CSS Syntax Module Level 3](https://drafts.csswg.org/css-syntax/#tokenization)
- `Tokenizer` class splitted into several abstractions:
- Added `TokenStream` class
- Added `OffsetToLocation` class
- Added `tokenize()` function that creates `TokenStream` instance for given string or updates a `TokenStream` instance passed as second parameter
- Removed `Tokenizer` class
- Removed `Raw` token type
- Renamed `Identifier` token type to `Ident`
- Added token types: `Hash`, `BadString`, `BadUrl`, `Delim`, `Percentage`, `Dimension`, `Colon`, `Semicolon`, `Comma`, `LeftSquareBracket`, `RightSquareBracket`, `LeftParenthesis`, `RightParenthesis`, `LeftCurlyBracket`, `RightCurlyBracket`
- Replaced `Punctuator` with `Delim` token type, that excludes specific characters with its own token type like `Colon`, `Semicolon` etc
- Removed `findCommentEnd`, `findStringEnd`, `findDecimalNumberEnd`, `findNumberEnd`, `findEscapeEnd`, `findIdentifierEnd` and `findUrlRawEnd` helper function
- Removed `SYMBOL_TYPE`, `PUNCTUATION` and `STOP_URL_RAW` dictionaries
- Added `isDigit`, `isHexDigit`, `isUppercaseLetter`, `isLowercaseLetter`, `isLetter`, `isNonAscii`, `isNameStart`, `isName`, `isNonPrintable`, `isNewline`, `isWhiteSpace`, `isValidEscape`, `isIdentifierStart`, `isNumberStart`, `consumeEscaped`, `consumeName`, `consumeNumber` and `consumeBadUrlRemnants` helper functions
- Parser
- Changed parsing algorithms to work with new token type set
- Changed `HexColor` consumption in way to relax checking a value, i.e. now `value` is a sequence of one or more name chars
- Added `&` as a property hack
- Relaxed `var()` parsing to only check that a first arguments is an identifier (not a custom property name as before)
- Lexer
- Reworked syntax matching to relay on token set only (having AST is optional now)
- Extended `Lexer#match()`, `Lexer#matchType()` and `Lexer#matchProperty()` methods to take a string as value, beside AST as a value
- Extended `Lexer#match()` method to take a string as a syntax, beside of syntax descriptor
- Reworked generic types:
- Removed `<attr()>`, `<url>` (moved to patch) and `<progid>` types
- Added types:
- Related to token types: `<ident-token>`, `<function-token>`, `<at-keyword-token>`, `<hash-token>`, `<string-token>`, `<bad-string-token>`, `<url-token>`, `<bad-url-token>`, `<delim-token>`, `<number-token>`, `<percentage-token>`, `<dimension-token>`, `<whitespace-token>`, `<CDO-token>`, `<CDC-token>`, `<colon-token>`, `<semicolon-token>`, `<comma-token>`, `<[-token>`, `<]-token>`, `<(-token>`, `<)-token>`, `<{-token>` and `<}-token>`
- Complex types: `<an-plus-b>`, `<urange>`, `<custom-property-name>`, `<declaration-value>`, `<any-value>` and `<zero>`
- Renamed `<unicode-range>` to `<urange>` as per spec
- Renamed `<expression>` (IE legacy extension) to `<-ms-legacy-expression>` and may to be removed in next releases
## 1.0.0-alpha.29 (May 30, 2018)
- Lexer
- Syntax matching was completely reworked. Now it's token-based and uses state machine. Public API has not changed. However, some internal data structures have changed. Most significal change in syntax match result tree structure, it's became token-based instead of node-based.
- Grammar
- Changed grammar tree format:
- Added `Token` node type to represent a single code point (`<delim-token>`)
- Added `Multiplier` that wraps a single node (`term` property)
- Added `AtKeyword` to represent `<at-keyword-token>`
- Removed `Slash` and `Percent` node types, they are replaced for a node with `Token` type
- Changed `Function` to represent `<function-token>` with no children
- Removed `multiplier` property from `Group`
- Changed `generate()` method:
- Method takes an `options` as second argument now (`generate(node, forceBraces, decorator)` -> `generate(node, options)`). Two options are supported: `forceBraces` and `decorator`
- When a second parameter is a function it treats as `decorate` option value, i.e. `generate(node, fn)` -> `generate(node, { decorate: fn })`
- Decorate function invokes with additional parameter – a reference to a node
- Tokenizer
- Renamed `Atrule` const to `AtKeyword`
## 1.0.0-alpha.28 (February 19, 2018)
- Renamed `lexer.grammar.translate()` method into `generate()`
- Fixed `<'-webkit-font-smoothing'>` and `<'-moz-osx-font-smoothing'>` syntaxes (#75)
- Added vendor keywords for `<'overflow'>` property syntax (#76)
- Pinned `mdn-data` to `~1.1.0` and fixed issues with some updated property syntaxes
## 1.0.0-alpha.27 (January 14, 2018)
- Generator
- Changed node's `generate()` methods invocation, methods now take a node as a single argument and context (i.e. `this`) that have methods: `chunk()`, `node()` and `children()`
- Renamed `translate()` to `generate()` and changed to take `options` argument
- Removed `translateMarkup(ast, enter, leave)` method, use `generate(ast, { decorator: (handlers) => { ... }})` instead
- Removed `translateWithSourceMap(ast)`, use `generate(ast, { sourceMap: true })` instead
- Changed to support for children as an array
- Walker
- Changed `walk()` to take an `options` argument instead of handler, with `enter`, `leave`, `visit` and `reverse` options (`walk(ast, fn)` is still works and equivalent to `walk(ast, { enter: fn })`)
- Removed `walkUp(ast, fn)`, use `walk(ast, { leave: fn })`
- Removed `walkRules(ast, fn)`, use `walk(ast, { visit: 'Rule', enter: fn })` instead
- Removed `walkRulesRight(ast, fn)`, use `walk(ast, { visit: 'Rule', reverse: true, enter: fn })` instead
- Removed `walkDeclarations(ast, fn)`, use `walk(ast, { visit: 'Declaration', enter: fn })` instead
- Changed to support for children as array in most cases (`reverse: true` will fail on arrays since they have no `forEachRight()` method)
- Misc
- List
- Added `List#forEach()` method
- Added `List#forEachRight()` method
- Added `List#filter()` method
- Changed `List#map()` method to return a `List` instance instead of `Array`
- Added `List#push()` method, similar to `List#appendData()` but returns nothing
- Added `List#pop()` method
- Added `List#unshift()` method, similar to `List#prependData()` but returns nothing
- Added `List#shift()` method
- Added `List#prependList()` method
- Changed `List#insert()`, `List#insertData()`, `List#appendList()` and `List#insertList()` methods to return a list that performed an operation
- Changed `keyword()` method
- Changed `name` field to include a vendor prefix
- Added `basename` field to contain a name without a vendor prefix
- Added `custom` field that contain a `true` when keyword is a custom property reference
- Changed `property()` method
- Changed `name` field to include a vendor prefix
- Added `basename` field to contain a name without any prefixes, i.e. a hack and a vendor prefix
- Added `vendorPrefix()` method
- Added `isCustomProperty()` method
## 1.0.0-alpha.26 (November 9, 2017)
- Tokenizer
- Added `Tokenizer#isBalanceEdge()` method
- Removed `Tokenizer.endsWith()` method
- Parser
- Made the parser tolerant to errors by default
- Removed `tolerant` parser option (no parsing modes anymore)
- Removed `property` parser option (a value parsing does not depend on property name anymore)
- Canceled error for a handing semicolon in a block
- Canceled error for unclosed `Brackets`, `Function` and `Parentheses` when EOF is reached
- Fixed error when prelude ends with a comment for at-rules with custom prelude consumer
- Relaxed at-rule parsing:
- Canceled error when EOF is reached after a prelude
- Canceled error for an at-rule with custom block consumer when at-rule has no block (just don't apply consumer in that case)
- Canceled error on at-rule parsing when it occurs outside prelude or block (at-rule is converting to `Raw` node)
- Allowed for any at-rule to have a prelude and a block, even if it's invalid per at-rule syntax (the responsibility for this check is moved to lexer, since it's possible to construct a AST with such errors)
- Made a declaration value a safe parsing point (i.e. error on value parsing lead to a value is turning into `Raw` node, not a declaration as before)
- Excluded surrounding white spaces and comments from a `Raw` node that represents a declaration value
- Changed `Value` parse handler to return a node only with type `Value` (previously it returned a `Raw` node in some cases)
- Fixed issue with `onParseError()` is not invoked for errors occured on selector or declaration value parsing in some cases
- Changed using of `onParseError()` to stop parsing if handler throws an exception
- Lexer
- Changed `grammar.walk()` to invoke passed handler on entering to node rather than on leaving the node
- Improved `grammar.walk()` to take a walk handler pair as an object, i.e. `walk(node, { enter: fn, leave: fn })`
- Changed `Lexer#match*()` methods to take a node of any type, but with a `children` field
- Added `Lexer#match(syntax, node)` method
- Fixed `Lexer#matchType()` method to stop return a positive result for the CSS wide keywords
## 1.0.0-alpha25 (October 9, 2017)
- Parser
- Added fallback node as argument to `onParseError()` handler
- Fixed raw consuming in tolerant mode when selector is invalid (greedy consuming and redundant warnings)
- Fixed exception in tolerant mode caused by unknown at-rule with unclosed block
- Changed handling of semicolons:
- Hanging semicolon inside declaration blocks raise an error or turns into a `Raw` node in tolerant mode instead of being ignored
- Semicolon outside of declaration blocks opens a `Rule` node as part of selector instead of being ignored
- Aligned `parseAtrulePrelude` behaviour to `parseRulePrelude`
- Removed `Raw` node wraping into `AtrulePrelude` when `parseAtrulePrelude` is disabled
- Removed error emitting when at-rule has a custom prelude customer but no prelude is found (it should be validated by a lexer later)
- Generator
- Fixed performance issue with `translateWithSourceMap()`, flattening the string (because of mixing building string and indexing into it) turned it into a quadratic algorithm (approximate numbers can be found in [the quiz created by this case](https://gist.github.com/lahmatiy/ea25d0e623d88ca9848384b5707d52d9))
- Added support for a single solidus hack for `property()`
- Minor fixes for custom errors
## 1.0.0-alpha24 (September 14, 2017)
- Improved CSSTree to be stable for standart build-in objects extension (#58)
- Parser
- Renamed rule's `selector` to `prelude`. The reasons: [spec names this part so](https://www.w3.org/TR/css-syntax-3/#qualified-rule), and this branch can contain not only a selector (`SelectorList`) but also a raw payload (`Raw`). What's changed:
- Renamed `Rule.selector` to `Rule.prelude`
- Renamed `parseSelector` parser option to `parseRulePrelude`
- Removed option for selector parse in `SelectorList`
- Lexer
- Fixed undefined positions in a error when match a syntax to empty or white space only value
- Improved `Lexer#checkStructure()`
- Return a warning as an object with node reference and message
- No exception on unknown node type, return a warning instead
## 1.0.0-alpha23 (September 10, 2017)
- Fixed `Tokenizer#getRawLength()`'s false positive balance match to the end of input in some cases (#56)
- Rename walker's entry point methods to be the same as CSSTree exposed methods (i.e. `walk()`, `walkUp()` etc)
- Rename at-rule's `expression` to `prelude` (since [spec names it so](https://www.w3.org/TR/css-syntax-3/#at-rule))
- `AtruleExpression` node type → `AtrulePrelude`
- `Atrule.expression` field → `Atrule.prelude`
- `parseAtruleExpression` parser's option → `parseAtrulePrelude`
- `atruleExpression` parse context → `atrulePrelude`
- `atruleExpression` walk context reference → `atrulePrelude`
## 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)
- Tokenizer
- Added `Raw` token type
- Improved tokenization of `url()` with raw as url to be more spec complient
- Added `Tokenizer#balance` array computation on token layout
- Added `Tokenizer#getRawLength()` to compute a raw length with respect of block balance
- Added `Tokenizer#getTokenStart(offset)` method to get token start offset by token index
- Added `idx` and `balance` fields to each token of `Tokenizer#dump()` method result
- Parser
- Added `onParseError` option
- Reworked node parsers that consume a `Raw` node to use a new approach. Since now a `Raw` node builds in `parser#Raw()` function only
- Changed semantic of `parser#Raw()`, it takes 5 parameters now (it might to be changed in future)
- Changed `parser#tolerantParse()` to pass a start token index to fallback function instead of source offset
- Fixed `AtruleExpression` consuming in tolerant mode
- Atrule handler to convert an empty `AtruleExpression` node into `null`
- Changed `AtruleExpression` handler to always return a node (before it could return a `null` in some cases)
- Lexer
- Fixed comma match node for `#` multiplier
- Added reference name to `SyntaxReferenceError`
- Additional fixes on custom errors
- Reduced possible corruption of base config by `syntax.fork()`
## 1.0.0-alpha20 (August 28, 2017)
- Tokenizer
- Added `Atrule` token type (`<at-rule-token>` per spec)
- Added `Function` token type (`<function-token>` per spec)
- Added `Url` token type
- Replaced `Tokenizer#getTypes()` method with `Tokenizer#dump()` to get all tokens as an array
- Renamed `Tokenizer.TYPE.Whitespace` to `Tokenizer.TYPE.WhiteSpace`
- Renamed `Tokenizer.findWhitespaceEnd()` to `Tokenizer.findWhiteSpaceEnd()`
- Parser
- Added initial implementation of tollerant mode (turn on by passing `tolerant: true` option). In this mode parse errors are never occour and any invalid part of CSS turns into a `Raw` node. Current safe points: `Atrule`, `AtruleExpression`, `Rule`, `Selector` and `Declaration`. Feature is experimental and further improvements are planned.
- Changed `Atrule.expression` to contain a `AtruleExpression` node or `null` only (other node types is wrapping into a `AtruleExpression` node)
- Renamed `AttributeSelector.operator` to `AttributeSelector.matcher`
- Generator
- `translate()` method is now can take a function as second argument, that recieves every generated chunk. When no function is passed, default handler is used, it concats all the chunks and method returns a string.
- Lexer
- Used [mdn/data](https://github.com/mdn/data) package as source of lexer's grammar instead of local dictionaries
- Added `x` unit to `<resolution>` generic type
- Improved match tree:
- Omited Group (sequences) match nodes
- Omited empty match nodes (for terms with `zero or more` multipliers)
- Added `ASTNode` node type to contain a reference to AST node
- Fixed node duplication (uncompleted match were added to tree)
- Added AST node reference in match nodes
- Added comma match node by `#` multiplier
- Grammar
- Changed `translate()` function to get a handler as third argument (optional). That handler recieves result of node traslation and can be used for decoration purposes. See [example](https://github.com/csstree/docs/blob/04c65af44477b5ea05feb373482898122b2a4528/docs/syntax.html#L619-L627)
- Added `SyntaxParseError` to grammar export
- Reworked group and multipliers representation in syntax tree:
- Replaced `Sequence` for `Group` node type (`Sequence` node type removed)
- Added `explicit` boolean property for `Group`
- Only groups can have a multiplier now (other node types is wrapping into a single term implicit group when multiplier is applied)
- Renamed `nonEmpty` Group's property to `disallowEmpty`
- Added optimisation for syntax tree by dropping redundant root `Group` when it contains a single `Group` term (return this `Group` as a result)
- Changed lexer's match functionality
- Changed `Lexer#matchProperty()` and `Lexer#matchType()` to return an object instead of match tree. A match tree stores in `matched` field when AST is matched to grammar successfully, otherwise an error in `error` field. The result object also has some methods to test AST node against a match tree: `getTrace()`, `isType()`, `isProperty()` and `isKeyword()`
- Added `Lexer#matchDeclaration()` method
- Removed `Lexer#lastMatchError` (error stores in match result object in `error` field)
- Added initial implementation of search for AST segments (new lexer methods: `Lexer#findValueSegments()`, `Lexer#findDeclarationValueSegments()` and `Lexer#findAllSegments`)
- Implemented `SyntaxReferenceError` for unknown property and type references
- Renamed field in resulting object of `property()` function: `variable` → `custom`
- Fixed issue with readonly properties (e.g. `line` and `column`) of `Error` and exception on attempt to write in iOS Safari
## 1.0.0-alpha19 (April 24, 2017)
- Extended `List` class with new methods:
- `List#prepend(item)`
- `List#prependData(data)`
- `List#insertData(data)`
- `List#insertList(list)`
- `List#replace(item, itemOrList)`
## 1.0.0-alpha18 (April 3, 2017)
- Added `atrule` walk context (#39)
- Changed a result of generate method for `AnPlusB`, `AttributeSelector`, `Function`, `MediaFeature` and `Ratio` ([1e95877](https://github.com/csstree/csstree/commit/1e9587710efa8e9338bcf0bc794b4b45f286231d))
- Fixed typo in `List` exception messages (@strarsis, #42)
- Improved tokenizer to convert an input to a string
## 1.0.0-alpha17 (March 13, 2017)
- Implemented new concept of `syntax`
- Changed main `exports` to expose a default syntax
- Defined initial [CSS syntax](lib/syntax/default.js)
- Implemented `createSyntax()` method to create a new syntax from scratch
- Implemented `fork()` method to create a new syntax based on given via extension
- Parser
- Implemented `mediaQueryList` and `mediaQuery` parsing contexts
- Implemented `CDO` and `CDC` node types
- Implemented additional declaration property prefix hacks (`#` and `+`)
- Added support for UTF-16LE BOM
- Added support for `@font-face` at-rule
- Added `chroma()` to legacy IE filter functions
- Improved `HexColor` to consume hex only
- Improved support for `\0` and `\9` hacks (#2)
- Relaxed number check for `Ratio` terms
- Allowed fractal values as a `Ratio` term
- Disallowed zero number as a `Ratio` term
- Changed important clause parsing
- Allowed any identifier for important (to support hacks like `!ie`)
- Store `true` for `important` field in case identifier equals to `important` and string otherwise
- Fixed parse error formatted message rendering to take into account tabs
- Removed exposing of `Parser` class
- Removed `readSelectorSequence()`, `readSequenceFallback()` and `readSelectorSequenceFallback` methods
- Used single universal sequence consumer for `AtruleExpression`, `Selector` and `Value`
- Generator
- Reworked generator to use auto-generated functions based on syntax definition (additional work to be done in next releases)
- Implemented `translateMarkup(ast, before, after)` method for complex cases
- Reworked `translateWithSourceMap` to be more flexible (based on `translateMarkup`, additional work to be done in next releases)
- Walker
- Reworked walker to use auto-generated function based on syntax definition (additional work to be done in next releases)
- Lexer
- Prepared for better extensibility (additional work to be done in next releases)
- Implemented `checkStructure(ast)` method to check AST structure based on syntax definition
- Update syntax dictionaries to latest `mdn/data`
- Add missing `<'offset-position'>` syntax
- Extended `<position>` property with `-webkit-sticky` (@sergejmueller, #37)
- Improved mismatch error position
- Implemented script (`gen:syntax`) to generate AST format reference page (`docs/ast.md`) using syntax definition
## 1.0.0-alpha16 (February 12, 2017)
- Exposed `Parser` class
- Added `startOffset` option to `Tokenizer` (constructor and `setSource()` method)
- Added fallback functions for default (`readSequenceFallback`) and selector (`readSelectorSequenceFallback`) sequence readers
- Fixed edge cases for `AnPlusB`
- Fixed wrong whitespace ignoring in `Selector` consumer
## 1.0.0-alpha15 (February 8, 2017)
- Fixed broken `atruleExpression` context
- Fixed vendor prefix detection in `keyword()` and `property()`
- Fixed `property()` to not lowercase custom property names
- Added `variable` boolean flag in `property()` result
- Renamed `scanner` into `tokenizer`
- Ranamed `syntax` into `lexer`
- Moved `docs/*.html` files to [csstree/docs](https://github.com/csstree/docs) repo
- Added `element()` function for `Value` context (`-moz-element()` supported as well)
- Merged `Universal` node type into `Type`
- Renamed node types:
- `Id` -> `IdSelector`
- `Class` -> `ClassSelector`
- `Type` -> `TypeSelector`
- `Attribute` -> `AttributeSelector`
- `PseudoClass` -> `PseudoClassSelector`
- `PseudoElement` -> `PseudoElementSelector`
- `Hash` -> `HexColor`
- `Space` -> `WhiteSpace`
- `An+B` -> `AnPlusB`
- Removed `Progid` node type
- Relaxed `MediaQuery` consumer to not validate syntax on parse and to include whitespaces in children sequence as is
- Added `WhiteSpace.value` property to store whitespace sequence
- Implemented parser options to specify what should be parsed in details (when option is `false` some part of CSS represents as balanced `Raw`):
- `parseAtruleExpression` – to parse at-rule expressions (`true` by default)
- `parseSelector` – to parse rule's selector (`true` by default)
- `parseValue` - to parse declaration's value (`true` by default)
- `parseCustomProperty` – to parse value and fallback of custom property (`false` by default)
- Changed tokenization to stick leading hyphen minus to identifier token
- Changed selector parsing:
- Don't convert spaces into descendant combinator
- Don't validate selector structure on parsing (selectors may be checked by lexer later)
- Initial refactoring of [docs](https://github.com/csstree/csstree/blob/master/docs)
- Various improvements and fixes
## 1.0.0-alpha14 (February 3, 2017)
- Implemented `DeclarationList`, `MediaQueryList`, `MediaQuery`, `MediaFeature` and `Ratio` node types
- Implemented `declarationList` context (useful to parse HTML `style` attribute content)
- Implemented custom consumers for `@import`, `@media`, `@page` and `@supports` at-rules
- Implemented `atrule` option for `parse()` config, is used for `atruleExpession` context to specify custom consumer for at-rule if any
- Added `Scanner#skipWS()`, `Scanner#eatNonWS()`, `Scanner#consume()` and `Scanner#consumeNonWS()` helper methods
- Added custom consumers for known functional-pseudos, consume unknown functional-pseudo content as balanced `Raw`
- Allowed any `PseudoElement` to be a functional-pseudo (#33)
- Improved walker implementations to reduce GC thrashing by reusing cursors
- Changed `Atrule.block` to contain a `Block` node type only if any
- Changed `Block.loc` positions to include curly brackets
- Changed `Atrule.expression` to store a `null` if no expression
- Changed parser to use `StyleSheet` node type only for top level node (when context is `stylesheet`, that's by default)
- Changed `Parentheses`, `Brackets` and `Function` consumers to use passed sequence reader instead of its own
- Changed `Value` and `AtruleExpression` consumers to use common sequence reader (that reader was used by `Value` consumer before)
- Changed default sequence reader to exclude storage of spaces around `Comma`
- Changed processing of custom properties:
- Consume declaration value as balanced `Raw`
- Consume `var()` fallback value as balanced `Raw`
- Validate first argument of `var()` starts with double dash
- Custom property's value and fallback includes spaces around
- Fixed `Nth` to have a `loc` property
- Fixed `SelectorList.loc` and `Selector.loc` positions to exclude spaces
- Fixed issue Browserify build fail with `default-syntax.json` is not found error (#32, @philschatz)
- Disallowed `Type` selector starting with dash (parser throws an error in this case now)
- Disallowed empty selectors for `Rule` (not sure if it's correct but looks reasonable)
- Removed `>>` combinator support until any browser support (no signals about that yet)
- Removed `PseudoElement.legacy` property
- Removed special case for `:before`, `:after`, `:first-letter` and `:first-line` to represent them as `PseudoElement`, now those pseudos are represented as `PseudoClass` nodes
- Removed deprecated `Syntax#match()` method
- Parser was splitted into modules and related changes, one step closer to an extensible parser
- Various fixes and improvements, all changes have negligible impact on performance
## 1.0.0-alpha13 (January 19, 2017)
- Changed location storing in `SyntaxMatchError`
- Changed property to store mismatch offset to `mismatchOffset`
- Changed `offset` property to store bad node offset in source CSS if any
- Added `loc` property that stores bad node `loc` if any
## 1.0.0-alpha12 (January 19, 2017)
- Fixed `Syntax#matchProperty()` method to always return a positive result for custom properties since syntax is never defined for them (#31)
- Implemented `fromPlainObject()` and `toPlainObject()` to convert plain object to AST or AST to plain object (currently converts `List` <-> `Array`)
## 1.0.0-alpha11 (January 18, 2017)
- Added support for `:matches(<selector-list>)` (#28)
- Added support for `:has(<relative-selector-list>)`
- Added support for `::slotted(<compound-selector>)`
- Implemented `Brackets` node type
- Implemented basic support for at-rule inside rule block (#24)
- Renamed `Selector` node type to `SelectorList`
- Renamed `SimpleSelector` node type to `Selector`
- Renamed `UnicodeRange.name` property to `UnicodeRange.value`
- Replaced `Negation` node type for regular `PseudoClass`
- Unified name of node property to store nested nodes, it always `children` now:
- `StyleSheet.rules` -> `StyleSheet.children`
- `SelectorList.selectors` -> `SelectorList.children`
- `Block.declarations` -> `Block.children`
- `*.sequence` -> `*.children`
- Fixed edge cases in parsing `Hex` and `UnicodeRange` when number not an integer
- Changed `nth-` pseudos parsing
- Implemented `An+B` node type to represent expressions like `2n + 1` or `-3n`
- Fixed edge cases when `a` or `b` is not an integer
- Changed `odd` and `even` keywords processing, keywords are storing as `Identifier` node type now
- Changed `Nth` node type format to store a `nth`-query and an optional `selector`
- Implemented `of` clause for `nth-` pseudos (a.e. `:nth-child(2n + 1 of li, img)`)
- Limited `Nth` parsing rules to `:nth-child()`, `:nth-last-child()`, `:nth-of-type()` and `:nth-last-of-type()` pseudos
- Changed the way to store locations
- Renamed `info` node property to `loc`
- Changed format of `loc` to store `start` and `end` positions
## 1.0.0-alpha10 (January 11, 2017)
- Reworked `Scanner` to be a single point to its functionality
- Exposed `Scanner` class to be useful for external projects
- Changed `walk()` function behaviour to traverse AST nodes in natural order
- Implemented `walkUp()` function to traverse AST nodes from deepest to parent (behaves as `walk()` before)
## 1.0.0-alpha9 (December 21, 2016)
- Fixed `<angle>` generic according to specs that allow a `<number>` equals to zero to be used as valid value (#30)
## 1.0.0-alpha8 (November 11, 2016)
- Fixed `Scanner#skip()` issue method when cursor is moving to the end of source
- Simplified `Progid` node
- Changed behaviour for bad selector processing, now parsing fails instead of selector ignoring
- Fixed `<id-selector>` generic syntax
- Added `q` unit for `<length>` generic syntax
- Refactored syntax parser (performance)
- Reduced startup time by implementing lazy syntax parsing (default syntax doesn't parse on module load)
- Updated syntax dictionaries and used [`mdn/data`](https://github.com/mdn/data) instead of `Template:CSSData`
- Renamed `syntax.stringify()` method to `syntax.translate()`
- Simplified generic syntax functions, those functions receive a single AST node for checking and should return `true` or `false`
- Added exception for values that contains `var()`, those values are always valid for now
- Added more tests and increase code coverage to `98.5%`
## 1.0.0-alpha7 (October 7, 2016)
- Added support for explicit descendant combinator (`>>`)
- Implemented `Type` and `Universal` type nodes
- Improved `Number` parsing by including sign and exponent (#26)
- Parse `before`, `after`, `first-letter` and `first-line` pseudos with single colon as `PseudoElement`
- Changed `FunctionalPseudo` node type to `PseudoClass`
- Fixed attribute selector name parsing (namespace edge cases)
- Fixed location calculation for specified offset when `eof` is reached
- Added more non-standard colors (#25)
- Removed obsolete `Syntax#getAll()` method
- Fixed various edge cases, code clean up and performance improvements
## 1.0.0-alpha6 (September 23, 2016)
- More accurate positions for syntax mismatch errors
- Added [`apple`](https://webkit.org/blog/3709/using-the-system-font-in-web-content/) specific font keywords (#20)
- Changed `Property` node stucture from object to string
- Renamed `Ruleset` node type to `Rule`
- Removed `Argument` node type
- Fixed `Dimension` and `Percentage` position computation
- Fixed bad selector parsing (temporary solution)
- Fixed location computation for CSS with very long lines that may lead to really long parsing with `positions:true` (even freeze)
- Fixed `line` and `column` computation for `SyntaxMatch` error
- Improved performance of parsing and translation. Now CSSTree is under 10ms in [PostCSS benchmark](https://github.com/postcss/benchmark).

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Copyright (C) 2016-2019 by Roman Dvornov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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<img align="right" width="111" height="111"
alt="CSSTree logo"
src="https://cloud.githubusercontent.com/assets/270491/19243723/6f9136c6-8f21-11e6-82ac-eeeee4c6c452.png"/>
# CSSTree
[![NPM version](https://img.shields.io/npm/v/css-tree.svg)](https://www.npmjs.com/package/css-tree)
[![Build Status](https://travis-ci.org/csstree/csstree.svg?branch=master)](https://travis-ci.org/csstree/csstree)
[![Coverage Status](https://coveralls.io/repos/github/csstree/csstree/badge.svg?branch=master)](https://coveralls.io/github/csstree/csstree?branch=master)
[![NPM Downloads](https://img.shields.io/npm/dm/css-tree.svg)](https://www.npmjs.com/package/css-tree)
[![Twitter](https://img.shields.io/badge/Twitter-@csstree-blue.svg)](https://twitter.com/csstree)
CSSTree is a tool set to work with CSS, including [fast](https://github.com/postcss/benchmark) detailed parser (string->AST), walker (AST traversal), generator (AST->string) and lexer (validation and matching) based on knowledge of spec and browser implementations. The main goal is to be efficient and W3C spec compliant, with focus on CSS analyzing and source-to-source transforming tasks.
> NOTE: The project is in alpha stage since some parts need further improvements, AST format and API are subjects to change. However it's stable enough and used by packages like [CSSO](https://github.com/css/csso) (CSS minifier) and [SVGO](https://github.com/svg/svgo) (SVG optimizer) in production.
## Features
- **Detailed parsing with an adjustable level of detail**
By default CSSTree parses CSS as detailed as possible, i.e. each single logical part is representing with its own AST node (see [AST format](docs/ast.md) for all possible node types). The parsing detail level can be changed through [parser options](docs/parsing.md#parsesource-options), for example, you can disable parsing of selectors or declaration values for component parts.
- **Tolerant to errors by design**
Parser behaves as [spec says](https://www.w3.org/TR/css-syntax-3/#error-handling): "When errors occur in CSS, the parser attempts to recover gracefully, throwing away only the minimum amount of content before returning to parsing as normal". The only thing the parser departs from the specification is that it doesn't throw away bad content, but wraps it in a special node type (`Raw`) that allows processing it later.
- **Fast and efficient**
CSSTree is created with focus on performance and effective memory consumption. Therefore it's [one of the fastest CSS parsers](https://github.com/postcss/benchmark) at the moment.
- **Syntax validation**
The build-in lexer can test CSS against syntaxes defined by W3C. CSSTree uses [mdn/data](https://github.com/mdn/data/) as a basis for lexer's dictionaries and extends it with vendor specific and legacy syntaxes. Lexer can only check the declaration values currently, but this feature will be extended to other parts of the CSS in the future.
## Docs
- [AST format](docs/ast.md)
- [Parsing CSS into AST](docs/parsing.md)
- [Generate CSS from AST](docs/generate.md)
- [AST traversal](docs/traversal.md)
- [Utils for AST](docs/utils.md)
- [Working with definition syntax](docs/definition-syntax.md)
## Tools
* [AST Explorer](https://astexplorer.net/#/gist/244e2fb4da940df52bf0f4b94277db44/e79aff44611020b22cfd9708f3a99ce09b7d67a8) – explore CSSTree AST format with zero setup
* [CSS syntax reference](https://csstree.github.io/docs/syntax.html)
* [CSS syntax validator](https://csstree.github.io/docs/validator.html)
## Related projects
* [csstree-validator](https://github.com/csstree/validator) – NPM package to validate CSS
* [stylelint-csstree-validator](https://github.com/csstree/stylelint-validator) – plugin for stylelint to validate CSS
* [Grunt plugin](https://github.com/sergejmueller/grunt-csstree-validator)
* [Gulp plugin](https://github.com/csstree/gulp-csstree)
* [Sublime plugin](https://github.com/csstree/SublimeLinter-contrib-csstree)
* [VS Code plugin](https://github.com/csstree/vscode-plugin)
* [Atom plugin](https://github.com/csstree/atom-plugin)
## Usage
Install with npm:
```
> npm install css-tree
```
Basic usage:
```js
var csstree = require('css-tree');
// parse CSS to AST
var ast = csstree.parse('.example { world: "!" }');
// traverse AST and modify it
csstree.walk(ast, function(node) {
if (node.type === 'ClassSelector' && node.name === 'example') {
node.name = 'hello';
}
});
// generate CSS from AST
console.log(csstree.generate(ast));
// .hello{world:"!"}
```
Syntax matching:
```js
// parse CSS to AST as a declaration value
var ast = csstree.parse('red 1px solid', { context: 'value' });
// march to syntax of `border` property
var matchResult = csstree.lexer.matchProperty('border', ast);
// check first value node is a <color>
console.log(matchResult.isType(ast.children.first(), 'color'));
// true
// get a type list matched to a node
console.log(matchResult.getTrace(ast.children.first()));
// [ { type: 'Property', name: 'border' },
// { type: 'Type', name: 'color' },
// { type: 'Type', name: 'named-color' },
// { type: 'Keyword', name: 'red' } ]
```
## Top level API
![API map](https://cdn.rawgit.com/csstree/csstree/master/docs/api-map.svg)
## License
MIT

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var mdnProperties = require('mdn-data/css/properties.json');
var mdnSyntaxes = require('mdn-data/css/syntaxes.json');
var patch = require('./patch.json');
function buildDictionary(dict, patchDict) {
var result = {};
// copy all syntaxes for an original dict
for (var key in dict) {
result[key] = dict[key].syntax;
}
// apply a patch
for (var key in patchDict) {
if (key in dict) {
if (patchDict[key].syntax) {
result[key] = patchDict[key].syntax;
} else {
delete result[key];
}
} else {
if (patchDict[key].syntax) {
result[key] = patchDict[key].syntax;
}
}
}
return result;
}
module.exports = {
properties: buildDictionary(mdnProperties, patch.properties),
types: buildDictionary(mdnSyntaxes, patch.syntaxes)
};

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{
"properties": {
"-moz-background-clip": {
"comment": "deprecated syntax in old Firefox, https://developer.mozilla.org/en/docs/Web/CSS/background-clip",
"syntax": "padding | border"
},
"-moz-border-radius-bottomleft": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-left-radius",
"syntax": "<'border-bottom-left-radius'>"
},
"-moz-border-radius-bottomright": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-right-radius",
"syntax": "<'border-bottom-right-radius'>"
},
"-moz-border-radius-topleft": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-top-left-radius",
"syntax": "<'border-top-left-radius'>"
},
"-moz-border-radius-topright": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-right-radius",
"syntax": "<'border-bottom-right-radius'>"
},
"-moz-osx-font-smoothing": {
"comment": "misssed old syntax https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth",
"syntax": "auto | grayscale"
},
"-moz-user-select": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/user-select",
"syntax": "none | text | all | -moz-none"
},
"-ms-flex-align": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-align",
"syntax": "start | end | center | baseline | stretch"
},
"-ms-flex-item-align": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-align",
"syntax": "auto | start | end | center | baseline | stretch"
},
"-ms-flex-line-pack": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-line-pack",
"syntax": "start | end | center | justify | distribute | stretch"
},
"-ms-flex-negative": {
"comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
"syntax": "<'flex-shrink'>"
},
"-ms-flex-pack": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-pack",
"syntax": "start | end | center | justify | distribute"
},
"-ms-flex-order": {
"comment": "misssed old syntax implemented in IE; https://msdn.microsoft.com/en-us/library/jj127303(v=vs.85).aspx",
"syntax": "<integer>"
},
"-ms-flex-positive": {
"comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
"syntax": "<'flex-grow'>"
},
"-ms-flex-preferred-size": {
"comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
"syntax": "<'flex-basis'>"
},
"-ms-interpolation-mode": {
"comment": "https://msdn.microsoft.com/en-us/library/ff521095(v=vs.85).aspx",
"syntax": "nearest-neighbor | bicubic"
},
"-ms-grid-column-align": {
"comment": "add this property first since it uses as fallback for flexbox, https://msdn.microsoft.com/en-us/library/windows/apps/hh466338.aspx",
"syntax": "start | end | center | stretch"
},
"-ms-grid-row-align": {
"comment": "add this property first since it uses as fallback for flexbox, https://msdn.microsoft.com/en-us/library/windows/apps/hh466348.aspx",
"syntax": "start | end | center | stretch"
},
"-webkit-appearance": {
"comment": "webkit specific keywords",
"references": [
"http://css-infos.net/property/-webkit-appearance"
],
"syntax": "none | button | button-bevel | caps-lock-indicator | caret | checkbox | default-button | listbox | listitem | media-fullscreen-button | media-mute-button | media-play-button | media-seek-back-button | media-seek-forward-button | media-slider | media-sliderthumb | menulist | menulist-button | menulist-text | menulist-textfield | push-button | radio | scrollbarbutton-down | scrollbarbutton-left | scrollbarbutton-right | scrollbarbutton-up | scrollbargripper-horizontal | scrollbargripper-vertical | scrollbarthumb-horizontal | scrollbarthumb-vertical | scrollbartrack-horizontal | scrollbartrack-vertical | searchfield | searchfield-cancel-button | searchfield-decoration | searchfield-results-button | searchfield-results-decoration | slider-horizontal | slider-vertical | sliderthumb-horizontal | sliderthumb-vertical | square-button | textarea | textfield"
},
"-webkit-background-clip": {
"comment": "https://developer.mozilla.org/en/docs/Web/CSS/background-clip",
"syntax": "[ <box> | border | padding | content | text ]#"
},
"-webkit-column-break-after": {
"comment": "added, http://help.dottoro.com/lcrthhhv.php",
"syntax": "always | auto | avoid"
},
"-webkit-column-break-before": {
"comment": "added, http://help.dottoro.com/lcxquvkf.php",
"syntax": "always | auto | avoid"
},
"-webkit-column-break-inside": {
"comment": "added, http://help.dottoro.com/lclhnthl.php",
"syntax": "always | auto | avoid"
},
"-webkit-font-smoothing": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth",
"syntax": "auto | none | antialiased | subpixel-antialiased"
},
"-webkit-mask-box-image": {
"comment": "missed; https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-mask-box-image",
"syntax": "[ <url> | <gradient> | none ] [ <length-percentage>{4} <-webkit-mask-box-repeat>{2} ]?"
},
"-webkit-print-color-adjust": {
"comment": "missed",
"references": [
"https://developer.mozilla.org/en/docs/Web/CSS/-webkit-print-color-adjust"
],
"syntax": "economy | exact"
},
"-webkit-text-security": {
"comment": "missed; http://help.dottoro.com/lcbkewgt.php",
"syntax": "none | circle | disc | square"
},
"-webkit-user-drag": {
"comment": "missed; http://help.dottoro.com/lcbixvwm.php",
"syntax": "none | element | auto"
},
"-webkit-user-select": {
"comment": "auto is supported by old webkit, https://developer.mozilla.org/en-US/docs/Web/CSS/user-select",
"syntax": "auto | none | text | all"
},
"alignment-baseline": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#AlignmentBaselineProperty"
],
"syntax": "auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical"
},
"baseline-shift": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#BaselineShiftProperty"
],
"syntax": "baseline | sub | super | <svg-length>"
},
"behavior": {
"comment": "added old IE property https://msdn.microsoft.com/en-us/library/ms530723(v=vs.85).aspx",
"syntax": "<url>+"
},
"clip-rule": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/masking.html#ClipRuleProperty"
],
"syntax": "nonzero | evenodd"
},
"cue": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<'cue-before'> <'cue-after'>?"
},
"cue-after": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<url> <decibel>? | none"
},
"cue-before": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<url> <decibel>? | none"
},
"cursor": {
"comment": "added legacy keywords: hand, -webkit-grab. -webkit-grabbing, -webkit-zoom-in, -webkit-zoom-out, -moz-grab, -moz-grabbing, -moz-zoom-in, -moz-zoom-out",
"references": [
"https://www.sitepoint.com/css3-cursor-styles/"
],
"syntax": "[ [ <url> [ <x> <y> ]? , ]* [ auto | default | none | context-menu | help | pointer | progress | wait | cell | crosshair | text | vertical-text | alias | copy | move | no-drop | not-allowed | e-resize | n-resize | ne-resize | nw-resize | s-resize | se-resize | sw-resize | w-resize | ew-resize | ns-resize | nesw-resize | nwse-resize | col-resize | row-resize | all-scroll | zoom-in | zoom-out | grab | grabbing | hand | -webkit-grab | -webkit-grabbing | -webkit-zoom-in | -webkit-zoom-out | -moz-grab | -moz-grabbing | -moz-zoom-in | -moz-zoom-out ] ]"
},
"display": {
"comment": "extended with -ms-flexbox",
"syntax": "none | inline | block | list-item | inline-list-item | inline-block | inline-table | table | table-cell | table-column | table-column-group | table-footer-group | table-header-group | table-row | table-row-group | flex | inline-flex | grid | inline-grid | run-in | ruby | ruby-base | ruby-text | ruby-base-container | ruby-text-container | contents | -ms-flexbox | -ms-inline-flexbox | -ms-grid | -ms-inline-grid | -webkit-flex | -webkit-inline-flex | -webkit-box | -webkit-inline-box | -moz-inline-stack | -moz-box | -moz-inline-box"
},
"position": {
"comment": "extended with -webkit-sticky",
"syntax": "static | relative | absolute | sticky | fixed | -webkit-sticky"
},
"dominant-baseline": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#DominantBaselineProperty"
],
"syntax": "auto | use-script | no-change | reset-size | ideographic | alphabetic | hanging | mathematical | central | middle | text-after-edge | text-before-edge"
},
"image-rendering": {
"comment": "extended with <-non-standard-image-rendering>, added SVG keywords optimizeSpeed and optimizeQuality",
"references": [
"https://developer.mozilla.org/en/docs/Web/CSS/image-rendering",
"https://www.w3.org/TR/SVG/painting.html#ImageRenderingProperty"
],
"syntax": "auto | crisp-edges | pixelated | optimizeSpeed | optimizeQuality | <-non-standard-image-rendering>"
},
"fill": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#FillProperty"
],
"syntax": "<paint>"
},
"fill-opacity": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#FillProperty"
],
"syntax": "<number-zero-one>"
},
"fill-rule": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#FillProperty"
],
"syntax": "nonzero | evenodd"
},
"filter": {
"comment": "extend with IE legacy syntaxes",
"syntax": "none | <filter-function-list> | <-ms-filter-function-list>"
},
"glyph-orientation-horizontal": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#GlyphOrientationHorizontalProperty"
],
"syntax": "<angle>"
},
"glyph-orientation-vertical": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#GlyphOrientationVerticalProperty"
],
"syntax": "<angle>"
},
"kerning": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#KerningProperty"
],
"syntax": "auto | <svg-length>"
},
"letter-spacing": {
"comment": "fix syntax <length> -> <length-percentage>",
"references": [
"https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/letter-spacing"
],
"syntax": "normal | <length-percentage>"
},
"marker": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"marker-end": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"marker-mid": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"marker-start": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"max-width": {
"comment": "extend by non-standard width keywords https://developer.mozilla.org/en-US/docs/Web/CSS/max-width",
"syntax": "<length> | <percentage> | none | max-content | min-content | fit-content | fill-available | <-non-standard-width>"
},
"min-width": {
"comment": "extend by non-standard width keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
"syntax": "<length> | <percentage> | auto | max-content | min-content | fit-content | fill-available | <-non-standard-width>"
},
"opacity": {
"comment": "strict to 0..1 <number> -> <number-zero-one>",
"syntax": "<number-zero-one>"
},
"overflow": {
"comment": "extend by vendor keywords https://developer.mozilla.org/en-US/docs/Web/CSS/overflow",
"syntax": "[ visible | hidden | clip | scroll | auto ]{1,2} | <-non-standard-overflow>"
},
"pause": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<'pause-before'> <'pause-after'>?"
},
"pause-after": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"pause-before": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"rest": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<'rest-before'> <'rest-after'>?"
},
"rest-after": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"rest-before": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"shape-rendering": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#ShapeRenderingPropert"
],
"syntax": "auto | optimizeSpeed | crispEdges | geometricPrecision"
},
"src": {
"comment": "added @font-face's src property https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/src",
"syntax": "[ <url> [ format( <string># ) ]? | local( <family-name> ) ]#"
},
"speak": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "auto | none | normal"
},
"speak-as": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "normal | spell-out || digits || [ literal-punctuation | no-punctuation ]"
},
"stroke": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<paint>"
},
"stroke-dasharray": {
"comment": "added SVG property; a list of comma and/or white space separated <length>s and <percentage>s",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "none | [ <svg-length>+ ]#"
},
"stroke-dashoffset": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<svg-length>"
},
"stroke-linecap": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "butt | round | square"
},
"stroke-linejoin": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "miter | round | bevel"
},
"stroke-miterlimit": {
"comment": "added SVG property (<miterlimit> = <number-one-or-greater>) ",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<number-one-or-greater>"
},
"stroke-opacity": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<number-zero-one>"
},
"stroke-width": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<svg-length>"
},
"text-anchor": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#TextAlignmentProperties"
],
"syntax": "start | middle | end"
},
"unicode-bidi": {
"comment": "added prefixed keywords https://developer.mozilla.org/en-US/docs/Web/CSS/unicode-bidi",
"syntax": "normal | embed | isolate | bidi-override | isolate-override | plaintext | -moz-isolate | -moz-isolate-override | -moz-plaintext | -webkit-isolate"
},
"unicode-range": {
"comment": "added missed property https://developer.mozilla.org/en-US/docs/Web/CSS/%40font-face/unicode-range",
"syntax": "<urange>#"
},
"voice-balance": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<number> | left | center | right | leftwards | rightwards"
},
"voice-duration": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "auto | <time>"
},
"voice-family": {
"comment": "<name> -> <family-name>, https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "[ [ <family-name> | <generic-voice> ] , ]* [ <family-name> | <generic-voice> ] | preserve"
},
"voice-pitch": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<frequency> && absolute | [ [ x-low | low | medium | high | x-high ] || [ <frequency> | <semitones> | <percentage> ] ]"
},
"voice-range": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<frequency> && absolute | [ [ x-low | low | medium | high | x-high ] || [ <frequency> | <semitones> | <percentage> ] ]"
},
"voice-rate": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "[ normal | x-slow | slow | medium | fast | x-fast ] || <percentage>"
},
"voice-stress": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "normal | strong | moderate | none | reduced"
},
"voice-volume": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "silent | [ [ x-soft | soft | medium | loud | x-loud ] || <decibel> ]"
},
"writing-mode": {
"comment": "extend with SVG keywords",
"syntax": "horizontal-tb | vertical-rl | vertical-lr | sideways-rl | sideways-lr | <svg-writing-mode>"
}
},
"syntaxes": {
"-legacy-gradient": {
"comment": "added collection of legacy gradient syntaxes",
"syntax": "<-webkit-gradient()> | <-legacy-linear-gradient> | <-legacy-repeating-linear-gradient> | <-legacy-radial-gradient> | <-legacy-repeating-radial-gradient>"
},
"-legacy-linear-gradient": {
"comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
"syntax": "-moz-linear-gradient( <-legacy-linear-gradient-arguments> ) | -webkit-linear-gradient( <-legacy-linear-gradient-arguments> ) | -o-linear-gradient( <-legacy-linear-gradient-arguments> )"
},
"-legacy-repeating-linear-gradient": {
"comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
"syntax": "-moz-repeating-linear-gradient( <-legacy-linear-gradient-arguments> ) | -webkit-repeating-linear-gradient( <-legacy-linear-gradient-arguments> ) | -o-repeating-linear-gradient( <-legacy-linear-gradient-arguments> )"
},
"-legacy-linear-gradient-arguments": {
"comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
"syntax": "[ <angle> | <side-or-corner> ]? , <color-stop-list>"
},
"-legacy-radial-gradient": {
"comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
"syntax": "-moz-radial-gradient( <-legacy-radial-gradient-arguments> ) | -webkit-radial-gradient( <-legacy-radial-gradient-arguments> ) | -o-radial-gradient( <-legacy-radial-gradient-arguments> )"
},
"-legacy-repeating-radial-gradient": {
"comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
"syntax": "-moz-repeating-radial-gradient( <-legacy-radial-gradient-arguments> ) | -webkit-repeating-radial-gradient( <-legacy-radial-gradient-arguments> ) | -o-repeating-radial-gradient( <-legacy-radial-gradient-arguments> )"
},
"-legacy-radial-gradient-arguments": {
"comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
"syntax": "[ <position> , ]? [ [ [ <-legacy-radial-gradient-shape> || <-legacy-radial-gradient-size> ] | [ <length> | <percentage> ]{2} ] , ]? <color-stop-list>"
},
"-legacy-radial-gradient-size": {
"comment": "before a standard it contains 2 extra keywords (`contain` and `cover`) https://www.w3.org/TR/2011/WD-css3-images-20110908/#ltsize",
"syntax": "closest-side | closest-corner | farthest-side | farthest-corner | contain | cover"
},
"-legacy-radial-gradient-shape": {
"comment": "define to double sure it doesn't extends in future https://www.w3.org/TR/2011/WD-css3-images-20110908/#ltshape",
"syntax": "circle | ellipse"
},
"-non-standard-font": {
"comment": "non standard fonts",
"references": [
"https://webkit.org/blog/3709/using-the-system-font-in-web-content/"
],
"syntax": "-apple-system-body | -apple-system-headline | -apple-system-subheadline | -apple-system-caption1 | -apple-system-caption2 | -apple-system-footnote | -apple-system-short-body | -apple-system-short-headline | -apple-system-short-subheadline | -apple-system-short-caption1 | -apple-system-short-footnote | -apple-system-tall-body"
},
"-non-standard-color": {
"comment": "non standard colors",
"references": [
"http://cssdot.ru/%D0%A1%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA_CSS/color-i305.html",
"https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#Mozilla_Color_Preference_Extensions"
],
"syntax": "-moz-ButtonDefault | -moz-ButtonHoverFace | -moz-ButtonHoverText | -moz-CellHighlight | -moz-CellHighlightText | -moz-Combobox | -moz-ComboboxText | -moz-Dialog | -moz-DialogText | -moz-dragtargetzone | -moz-EvenTreeRow | -moz-Field | -moz-FieldText | -moz-html-CellHighlight | -moz-html-CellHighlightText | -moz-mac-accentdarkestshadow | -moz-mac-accentdarkshadow | -moz-mac-accentface | -moz-mac-accentlightesthighlight | -moz-mac-accentlightshadow | -moz-mac-accentregularhighlight | -moz-mac-accentregularshadow | -moz-mac-chrome-active | -moz-mac-chrome-inactive | -moz-mac-focusring | -moz-mac-menuselect | -moz-mac-menushadow | -moz-mac-menutextselect | -moz-MenuHover | -moz-MenuHoverText | -moz-MenuBarText | -moz-MenuBarHoverText | -moz-nativehyperlinktext | -moz-OddTreeRow | -moz-win-communicationstext | -moz-win-mediatext | -moz-activehyperlinktext | -moz-default-background-color | -moz-default-color | -moz-hyperlinktext | -moz-visitedhyperlinktext | -webkit-activelink | -webkit-focus-ring-color | -webkit-link | -webkit-text"
},
"-non-standard-image-rendering": {
"comment": "non-standard keywords http://phrogz.net/tmp/canvas_image_zoom.html",
"syntax": "optimize-contrast | -moz-crisp-edges | -o-crisp-edges | -webkit-optimize-contrast"
},
"-non-standard-overflow": {
"comment": "non-standard keywords https://developer.mozilla.org/en-US/docs/Web/CSS/overflow",
"syntax": "-moz-scrollbars-none | -moz-scrollbars-horizontal | -moz-scrollbars-vertical | -moz-hidden-unscrollable"
},
"-non-standard-width": {
"comment": "non-standard keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
"syntax": "min-intrinsic | intrinsic | -moz-min-content | -moz-max-content | -webkit-min-content | -webkit-max-content"
},
"-webkit-gradient()": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/ - TODO: simplify when after match algorithm improvement ( [, point, radius | , point] -> [, radius]? , point )",
"syntax": "-webkit-gradient( <-webkit-gradient-type>, <-webkit-gradient-point> [, <-webkit-gradient-point> | , <-webkit-gradient-radius>, <-webkit-gradient-point> ] [, <-webkit-gradient-radius>]? [, <-webkit-gradient-color-stop>]* )"
},
"-webkit-gradient-color-stop": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "from( <color> ) | color-stop( [ <number-zero-one> | <percentage> ] , <color> ) | to( <color> )"
},
"-webkit-gradient-point": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "[ left | center | right | <length-percentage> ] [ top | center | bottom | <length-percentage> ]"
},
"-webkit-gradient-radius": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "<length> | <percentage>"
},
"-webkit-gradient-type": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "linear | radial"
},
"-webkit-mask-box-repeat": {
"comment": "missed; https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-mask-box-image",
"syntax": "repeat | stretch | round"
},
"-webkit-mask-clip-style": {
"comment": "missed; there is no enough information about `-webkit-mask-clip` property, but looks like all those keywords are working",
"syntax": "border | border-box | padding | padding-box | content | content-box | text"
},
"-ms-filter-function-list": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "<-ms-filter-function>+"
},
"-ms-filter-function": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "<-ms-filter-function-progid> | <-ms-filter-function-legacy>"
},
"-ms-filter-function-progid": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "'progid:' [ <ident-token> '.' ]* [ <ident-token> | <function-token> <any-value>? ) ]"
},
"-ms-filter-function-legacy": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "<ident-token> | <function-token> <any-value>? )"
},
"-ms-filter": {
"syntax": "<string>"
},
"age": {
"comment": "https://www.w3.org/TR/css3-speech/#voice-family",
"syntax": "child | young | old"
},
"attr-name": {
"syntax": "<wq-name>"
},
"attr-fallback": {
"syntax": "<any-value>"
},
"border-radius": {
"comment": "missed, https://drafts.csswg.org/css-backgrounds-3/#the-border-radius",
"syntax": "<length-percentage>{1,2}"
},
"bottom": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"content-list": {
"comment": "missed -> https://drafts.csswg.org/css-content/#typedef-content-list (document-url, <target> and leader() is omitted util stabilization)",
"syntax": "[ <string> | contents | <url> | <quote> | <attr()> | counter( <ident>, <'list-style-type'>? ) ]+"
},
"generic-voice": {
"comment": "https://www.w3.org/TR/css3-speech/#voice-family",
"syntax": "[ <age>? <gender> <integer>? ]"
},
"gender": {
"comment": "https://www.w3.org/TR/css3-speech/#voice-family",
"syntax": "male | female | neutral"
},
"generic-family": {
"comment": "added -apple-system",
"references": [
"https://webkit.org/blog/3709/using-the-system-font-in-web-content/"
],
"syntax": "serif | sans-serif | cursive | fantasy | monospace | -apple-system"
},
"gradient": {
"comment": "added legacy syntaxes support",
"syntax": "<linear-gradient()> | <repeating-linear-gradient()> | <radial-gradient()> | <repeating-radial-gradient()> | <conic-gradient()> | <-legacy-gradient>"
},
"left": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"mask-image": {
"comment": "missed; https://drafts.fxtf.org/css-masking-1/#the-mask-image",
"syntax": "<mask-reference>#"
},
"name-repeat": {
"comment": "missed, and looks like obsolete, keep it as is since other property syntaxes should be changed too; https://www.w3.org/TR/2015/WD-css-grid-1-20150917/#typedef-name-repeat",
"syntax": "repeat( [ <positive-integer> | auto-fill ], <line-names>+)"
},
"named-color": {
"comment": "added non standard color names",
"syntax": "transparent | aliceblue | antiquewhite | aqua | aquamarine | azure | beige | bisque | black | blanchedalmond | blue | blueviolet | brown | burlywood | cadetblue | chartreuse | chocolate | coral | cornflowerblue | cornsilk | crimson | cyan | darkblue | darkcyan | darkgoldenrod | darkgray | darkgreen | darkgrey | darkkhaki | darkmagenta | darkolivegreen | darkorange | darkorchid | darkred | darksalmon | darkseagreen | darkslateblue | darkslategray | darkslategrey | darkturquoise | darkviolet | deeppink | deepskyblue | dimgray | dimgrey | dodgerblue | firebrick | floralwhite | forestgreen | fuchsia | gainsboro | ghostwhite | gold | goldenrod | gray | green | greenyellow | grey | honeydew | hotpink | indianred | indigo | ivory | khaki | lavender | lavenderblush | lawngreen | lemonchiffon | lightblue | lightcoral | lightcyan | lightgoldenrodyellow | lightgray | lightgreen | lightgrey | lightpink | lightsalmon | lightseagreen | lightskyblue | lightslategray | lightslategrey | lightsteelblue | lightyellow | lime | limegreen | linen | magenta | maroon | mediumaquamarine | mediumblue | mediumorchid | mediumpurple | mediumseagreen | mediumslateblue | mediumspringgreen | mediumturquoise | mediumvioletred | midnightblue | mintcream | mistyrose | moccasin | navajowhite | navy | oldlace | olive | olivedrab | orange | orangered | orchid | palegoldenrod | palegreen | paleturquoise | palevioletred | papayawhip | peachpuff | peru | pink | plum | powderblue | purple | rebeccapurple | red | rosybrown | royalblue | saddlebrown | salmon | sandybrown | seagreen | seashell | sienna | silver | skyblue | slateblue | slategray | slategrey | snow | springgreen | steelblue | tan | teal | thistle | tomato | turquoise | violet | wheat | white | whitesmoke | yellow | yellowgreen | <-non-standard-color>"
},
"paint": {
"comment": "used by SVG https://www.w3.org/TR/SVG/painting.html#SpecifyingPaint",
"syntax": "none | <color> | <url> [ none | <color> ]? | context-fill | context-stroke"
},
"path()": {
"comment": "missed, `motion` property was renamed, but left it as is for now; path() syntax was get from last draft https://drafts.fxtf.org/motion-1/#funcdef-offset-path-path",
"syntax": "path( <string> )"
},
"ratio": {
"comment": "missed, https://drafts.csswg.org/mediaqueries-4/#typedef-ratio",
"syntax": "<integer> / <integer>"
},
"right": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"shape": {
"comment": "missed spaces in function body and add backwards compatible syntax",
"syntax": "rect( <top>, <right>, <bottom>, <left> ) | rect( <top> <right> <bottom> <left> )"
},
"svg-length": {
"comment": "All coordinates and lengths in SVG can be specified with or without a unit identifier",
"references": [
"https://www.w3.org/TR/SVG11/coords.html#Units"
],
"syntax": "<percentage> | <length> | <number>"
},
"svg-writing-mode": {
"comment": "SVG specific keywords (deprecated for CSS)",
"references": [
"https://developer.mozilla.org/en/docs/Web/CSS/writing-mode",
"https://www.w3.org/TR/SVG/text.html#WritingModeProperty"
],
"syntax": "lr-tb | rl-tb | tb-rl | lr | rl | tb"
},
"top": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"x": {
"comment": "missed; not sure we should add it, but no others except `cursor` is using it so it's ok for now; https://drafts.csswg.org/css-ui-3/#cursor",
"syntax": "<number>"
},
"y": {
"comment": "missed; not sure we should add it, but no others except `cursor` is using so it's ok for now; https://drafts.csswg.org/css-ui-3/#cursor",
"syntax": "<number>"
},
"declaration": {
"comment": "missed, restored by https://drafts.csswg.org/css-syntax",
"syntax": "<ident-token> : <declaration-value>? [ '!' important ]?"
},
"declaration-list": {
"comment": "missed, restored by https://drafts.csswg.org/css-syntax",
"syntax": "[ <declaration>? ';' ]* <declaration>?"
},
"url": {
"comment": "https://drafts.csswg.org/css-values-4/#urls",
"syntax": "url( <string> <url-modifier>* ) | <url-token>"
},
"url-modifier": {
"comment": "https://drafts.csswg.org/css-values-4/#typedef-url-modifier",
"syntax": "<ident> | <function-token> <any-value> )"
},
"number-zero-one": {
"syntax": "<number [0,1]>"
},
"number-one-or-greater": {
"syntax": "<number [1,∞]>"
},
"positive-integer": {
"syntax": "<integer [0,∞]>"
}
}
}

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frontend/node_modules/css-tree/node_modules/source-map/CHANGELOG.md generated vendored Normal file
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# Change Log
## 0.5.6
* Fix for regression when people were using numbers as names in source maps. See
#236.
## 0.5.5
* Fix "regression" of unsupported, implementation behavior that half the world
happens to have come to depend on. See #235.
* Fix regression involving function hoisting in SpiderMonkey. See #233.
## 0.5.4
* Large performance improvements to source-map serialization. See #228 and #229.
## 0.5.3
* Do not include unnecessary distribution files. See
commit ef7006f8d1647e0a83fdc60f04f5a7ca54886f86.
## 0.5.2
* Include browser distributions of the library in package.json's `files`. See
issue #212.
## 0.5.1
* Fix latent bugs in IndexedSourceMapConsumer.prototype._parseMappings. See
ff05274becc9e6e1295ed60f3ea090d31d843379.
## 0.5.0
* Node 0.8 is no longer supported.
* Use webpack instead of dryice for bundling.
* Big speedups serializing source maps. See pull request #203.
* Fix a bug with `SourceMapConsumer.prototype.sourceContentFor` and sources that
explicitly start with the source root. See issue #199.
## 0.4.4
* Fix an issue where using a `SourceMapGenerator` after having created a
`SourceMapConsumer` from it via `SourceMapConsumer.fromSourceMap` failed. See
issue #191.
* Fix an issue with where `SourceMapGenerator` would mistakenly consider
different mappings as duplicates of each other and avoid generating them. See
issue #192.
## 0.4.3
* A very large number of performance improvements, particularly when parsing
source maps. Collectively about 75% of time shaved off of the source map
parsing benchmark!
* Fix a bug in `SourceMapConsumer.prototype.allGeneratedPositionsFor` and fuzzy
searching in the presence of a column option. See issue #177.
* Fix a bug with joining a source and its source root when the source is above
the root. See issue #182.
* Add the `SourceMapConsumer.prototype.hasContentsOfAllSources` method to
determine when all sources' contents are inlined into the source map. See
issue #190.
## 0.4.2
* Add an `.npmignore` file so that the benchmarks aren't pulled down by
dependent projects. Issue #169.
* Add an optional `column` argument to
`SourceMapConsumer.prototype.allGeneratedPositionsFor` and better handle lines
with no mappings. Issues #172 and #173.
## 0.4.1
* Fix accidentally defining a global variable. #170.
## 0.4.0
* The default direction for fuzzy searching was changed back to its original
direction. See #164.
* There is now a `bias` option you can supply to `SourceMapConsumer` to control
the fuzzy searching direction. See #167.
* About an 8% speed up in parsing source maps. See #159.
* Added a benchmark for parsing and generating source maps.
## 0.3.0
* Change the default direction that searching for positions fuzzes when there is
not an exact match. See #154.
* Support for environments using json2.js for JSON serialization. See #156.
## 0.2.0
* Support for consuming "indexed" source maps which do not have any remote
sections. See pull request #127. This introduces a minor backwards
incompatibility if you are monkey patching `SourceMapConsumer.prototype`
methods.
## 0.1.43
* Performance improvements for `SourceMapGenerator` and `SourceNode`. See issue
#148 for some discussion and issues #150, #151, and #152 for implementations.
## 0.1.42
* Fix an issue where `SourceNode`s from different versions of the source-map
library couldn't be used in conjunction with each other. See issue #142.
## 0.1.41
* Fix a bug with getting the source content of relative sources with a "./"
prefix. See issue #145 and [Bug 1090768](bugzil.la/1090768).
* Add the `SourceMapConsumer.prototype.computeColumnSpans` method to compute the
column span of each mapping.
* Add the `SourceMapConsumer.prototype.allGeneratedPositionsFor` method to find
all generated positions associated with a given original source and line.
## 0.1.40
* Performance improvements for parsing source maps in SourceMapConsumer.
## 0.1.39
* Fix a bug where setting a source's contents to null before any source content
had been set before threw a TypeError. See issue #131.
## 0.1.38
* Fix a bug where finding relative paths from an empty path were creating
absolute paths. See issue #129.
## 0.1.37
* Fix a bug where if the source root was an empty string, relative source paths
would turn into absolute source paths. Issue #124.
## 0.1.36
* Allow the `names` mapping property to be an empty string. Issue #121.
## 0.1.35
* A third optional parameter was added to `SourceNode.fromStringWithSourceMap`
to specify a path that relative sources in the second parameter should be
relative to. Issue #105.
* If no file property is given to a `SourceMapGenerator`, then the resulting
source map will no longer have a `null` file property. The property will
simply not exist. Issue #104.
* Fixed a bug where consecutive newlines were ignored in `SourceNode`s.
Issue #116.
## 0.1.34
* Make `SourceNode` work with windows style ("\r\n") newlines. Issue #103.
* Fix bug involving source contents and the
`SourceMapGenerator.prototype.applySourceMap`. Issue #100.
## 0.1.33
* Fix some edge cases surrounding path joining and URL resolution.
* Add a third parameter for relative path to
`SourceMapGenerator.prototype.applySourceMap`.
* Fix issues with mappings and EOLs.
## 0.1.32
* Fixed a bug where SourceMapConsumer couldn't handle negative relative columns
(issue 92).
* Fixed test runner to actually report number of failed tests as its process
exit code.
* Fixed a typo when reporting bad mappings (issue 87).
## 0.1.31
* Delay parsing the mappings in SourceMapConsumer until queried for a source
location.
* Support Sass source maps (which at the time of writing deviate from the spec
in small ways) in SourceMapConsumer.
## 0.1.30
* Do not join source root with a source, when the source is a data URI.
* Extend the test runner to allow running single specific test files at a time.
* Performance improvements in `SourceNode.prototype.walk` and
`SourceMapConsumer.prototype.eachMapping`.
* Source map browser builds will now work inside Workers.
* Better error messages when attempting to add an invalid mapping to a
`SourceMapGenerator`.
## 0.1.29
* Allow duplicate entries in the `names` and `sources` arrays of source maps
(usually from TypeScript) we are parsing. Fixes github issue 72.
## 0.1.28
* Skip duplicate mappings when creating source maps from SourceNode; github
issue 75.
## 0.1.27
* Don't throw an error when the `file` property is missing in SourceMapConsumer,
we don't use it anyway.
## 0.1.26
* Fix SourceNode.fromStringWithSourceMap for empty maps. Fixes github issue 70.
## 0.1.25
* Make compatible with browserify
## 0.1.24
* Fix issue with absolute paths and `file://` URIs. See
https://bugzilla.mozilla.org/show_bug.cgi?id=885597
## 0.1.23
* Fix issue with absolute paths and sourcesContent, github issue 64.
## 0.1.22
* Ignore duplicate mappings in SourceMapGenerator. Fixes github issue 21.
## 0.1.21
* Fixed handling of sources that start with a slash so that they are relative to
the source root's host.
## 0.1.20
* Fixed github issue #43: absolute URLs aren't joined with the source root
anymore.
## 0.1.19
* Using Travis CI to run tests.
## 0.1.18
* Fixed a bug in the handling of sourceRoot.
## 0.1.17
* Added SourceNode.fromStringWithSourceMap.
## 0.1.16
* Added missing documentation.
* Fixed the generating of empty mappings in SourceNode.
## 0.1.15
* Added SourceMapGenerator.applySourceMap.
## 0.1.14
* The sourceRoot is now handled consistently.
## 0.1.13
* Added SourceMapGenerator.fromSourceMap.
## 0.1.12
* SourceNode now generates empty mappings too.
## 0.1.11
* Added name support to SourceNode.
## 0.1.10
* Added sourcesContent support to the customer and generator.

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Copyright (c) 2009-2011, Mozilla Foundation and contributors
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the names of the Mozilla Foundation nor the names of project
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# Source Map
[![Build Status](https://travis-ci.org/mozilla/source-map.png?branch=master)](https://travis-ci.org/mozilla/source-map)
[![NPM](https://nodei.co/npm/source-map.png?downloads=true&downloadRank=true)](https://www.npmjs.com/package/source-map)
This is a library to generate and consume the source map format
[described here][format].
[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit
## Use with Node
$ npm install source-map
## Use on the Web
<script src="https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js" defer></script>
--------------------------------------------------------------------------------
<!-- `npm run toc` to regenerate the Table of Contents -->
<!-- START doctoc generated TOC please keep comment here to allow auto update -->
<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
## Table of Contents
- [Examples](#examples)
- [Consuming a source map](#consuming-a-source-map)
- [Generating a source map](#generating-a-source-map)
- [With SourceNode (high level API)](#with-sourcenode-high-level-api)
- [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)
- [API](#api)
- [SourceMapConsumer](#sourcemapconsumer)
- [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)
- [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)
- [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)
- [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)
- [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)
- [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)
- [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)
- [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)
- [SourceMapGenerator](#sourcemapgenerator)
- [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)
- [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)
- [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)
- [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)
- [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)
- [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)
- [SourceNode](#sourcenode)
- [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)
- [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)
- [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)
- [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)
- [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)
- [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)
- [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)
- [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)
- [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)
- [SourceNode.prototype.toString()](#sourcenodeprototypetostring)
- [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)
<!-- END doctoc generated TOC please keep comment here to allow auto update -->
## Examples
### Consuming a source map
```js
var rawSourceMap = {
version: 3,
file: 'min.js',
names: ['bar', 'baz', 'n'],
sources: ['one.js', 'two.js'],
sourceRoot: 'http://example.com/www/js/',
mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'
};
var smc = new SourceMapConsumer(rawSourceMap);
console.log(smc.sources);
// [ 'http://example.com/www/js/one.js',
// 'http://example.com/www/js/two.js' ]
console.log(smc.originalPositionFor({
line: 2,
column: 28
}));
// { source: 'http://example.com/www/js/two.js',
// line: 2,
// column: 10,
// name: 'n' }
console.log(smc.generatedPositionFor({
source: 'http://example.com/www/js/two.js',
line: 2,
column: 10
}));
// { line: 2, column: 28 }
smc.eachMapping(function (m) {
// ...
});
```
### Generating a source map
In depth guide:
[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)
#### With SourceNode (high level API)
```js
function compile(ast) {
switch (ast.type) {
case 'BinaryExpression':
return new SourceNode(
ast.location.line,
ast.location.column,
ast.location.source,
[compile(ast.left), " + ", compile(ast.right)]
);
case 'Literal':
return new SourceNode(
ast.location.line,
ast.location.column,
ast.location.source,
String(ast.value)
);
// ...
default:
throw new Error("Bad AST");
}
}
var ast = parse("40 + 2", "add.js");
console.log(compile(ast).toStringWithSourceMap({
file: 'add.js'
}));
// { code: '40 + 2',
// map: [object SourceMapGenerator] }
```
#### With SourceMapGenerator (low level API)
```js
var map = new SourceMapGenerator({
file: "source-mapped.js"
});
map.addMapping({
generated: {
line: 10,
column: 35
},
source: "foo.js",
original: {
line: 33,
column: 2
},
name: "christopher"
});
console.log(map.toString());
// '{"version":3,"file":"source-mapped.js","sources":["foo.js"],"names":["christopher"],"mappings":";;;;;;;;;mCAgCEA"}'
```
## API
Get a reference to the module:
```js
// Node.js
var sourceMap = require('source-map');
// Browser builds
var sourceMap = window.sourceMap;
// Inside Firefox
const sourceMap = require("devtools/toolkit/sourcemap/source-map.js");
```
### SourceMapConsumer
A SourceMapConsumer instance represents a parsed source map which we can query
for information about the original file positions by giving it a file position
in the generated source.
#### new SourceMapConsumer(rawSourceMap)
The only parameter is the raw source map (either as a string which can be
`JSON.parse`'d, or an object). According to the spec, source maps have the
following attributes:
* `version`: Which version of the source map spec this map is following.
* `sources`: An array of URLs to the original source files.
* `names`: An array of identifiers which can be referenced by individual
mappings.
* `sourceRoot`: Optional. The URL root from which all sources are relative.
* `sourcesContent`: Optional. An array of contents of the original source files.
* `mappings`: A string of base64 VLQs which contain the actual mappings.
* `file`: Optional. The generated filename this source map is associated with.
```js
var consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);
```
#### SourceMapConsumer.prototype.computeColumnSpans()
Compute the last column for each generated mapping. The last column is
inclusive.
```js
// Before:
consumer.allGeneratedPositionsFor({ line: 2, source: "foo.coffee" })
// [ { line: 2,
// column: 1 },
// { line: 2,
// column: 10 },
// { line: 2,
// column: 20 } ]
consumer.computeColumnSpans();
// After:
consumer.allGeneratedPositionsFor({ line: 2, source: "foo.coffee" })
// [ { line: 2,
// column: 1,
// lastColumn: 9 },
// { line: 2,
// column: 10,
// lastColumn: 19 },
// { line: 2,
// column: 20,
// lastColumn: Infinity } ]
```
#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)
Returns the original source, line, and column information for the generated
source's line and column positions provided. The only argument is an object with
the following properties:
* `line`: The line number in the generated source. Line numbers in
this library are 1-based (note that the underlying source map
specification uses 0-based line numbers -- this library handles the
translation).
* `column`: The column number in the generated source. Column numbers
in this library are 0-based.
* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or
`SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest
element that is smaller than or greater than the one we are searching for,
respectively, if the exact element cannot be found. Defaults to
`SourceMapConsumer.GREATEST_LOWER_BOUND`.
and an object is returned with the following properties:
* `source`: The original source file, or null if this information is not
available.
* `line`: The line number in the original source, or null if this information is
not available. The line number is 1-based.
* `column`: The column number in the original source, or null if this
information is not available. The column number is 0-based.
* `name`: The original identifier, or null if this information is not available.
```js
consumer.originalPositionFor({ line: 2, column: 10 })
// { source: 'foo.coffee',
// line: 2,
// column: 2,
// name: null }
consumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })
// { source: null,
// line: null,
// column: null,
// name: null }
```
#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)
Returns the generated line and column information for the original source,
line, and column positions provided. The only argument is an object with
the following properties:
* `source`: The filename of the original source.
* `line`: The line number in the original source. The line number is
1-based.
* `column`: The column number in the original source. The column
number is 0-based.
and an object is returned with the following properties:
* `line`: The line number in the generated source, or null. The line
number is 1-based.
* `column`: The column number in the generated source, or null. The
column number is 0-based.
```js
consumer.generatedPositionFor({ source: "example.js", line: 2, column: 10 })
// { line: 1,
// column: 56 }
```
#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)
Returns all generated line and column information for the original source, line,
and column provided. If no column is provided, returns all mappings
corresponding to a either the line we are searching for or the next closest line
that has any mappings. Otherwise, returns all mappings corresponding to the
given line and either the column we are searching for or the next closest column
that has any offsets.
The only argument is an object with the following properties:
* `source`: The filename of the original source.
* `line`: The line number in the original source. The line number is
1-based.
* `column`: Optional. The column number in the original source. The
column number is 0-based.
and an array of objects is returned, each with the following properties:
* `line`: The line number in the generated source, or null. The line
number is 1-based.
* `column`: The column number in the generated source, or null. The
column number is 0-based.
```js
consumer.allGeneratedpositionsfor({ line: 2, source: "foo.coffee" })
// [ { line: 2,
// column: 1 },
// { line: 2,
// column: 10 },
// { line: 2,
// column: 20 } ]
```
#### SourceMapConsumer.prototype.hasContentsOfAllSources()
Return true if we have the embedded source content for every source listed in
the source map, false otherwise.
In other words, if this method returns `true`, then
`consumer.sourceContentFor(s)` will succeed for every source `s` in
`consumer.sources`.
```js
// ...
if (consumer.hasContentsOfAllSources()) {
consumerReadyCallback(consumer);
} else {
fetchSources(consumer, consumerReadyCallback);
}
// ...
```
#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])
Returns the original source content for the source provided. The only
argument is the URL of the original source file.
If the source content for the given source is not found, then an error is
thrown. Optionally, pass `true` as the second param to have `null` returned
instead.
```js
consumer.sources
// [ "my-cool-lib.clj" ]
consumer.sourceContentFor("my-cool-lib.clj")
// "..."
consumer.sourceContentFor("this is not in the source map");
// Error: "this is not in the source map" is not in the source map
consumer.sourceContentFor("this is not in the source map", true);
// null
```
#### SourceMapConsumer.prototype.eachMapping(callback, context, order)
Iterate over each mapping between an original source/line/column and a
generated line/column in this source map.
* `callback`: The function that is called with each mapping. Mappings have the
form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,
name }`
* `context`: Optional. If specified, this object will be the value of `this`
every time that `callback` is called.
* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or
`SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over
the mappings sorted by the generated file's line/column order or the
original's source/line/column order, respectively. Defaults to
`SourceMapConsumer.GENERATED_ORDER`.
```js
consumer.eachMapping(function (m) { console.log(m); })
// ...
// { source: 'illmatic.js',
// generatedLine: 1,
// generatedColumn: 0,
// originalLine: 1,
// originalColumn: 0,
// name: null }
// { source: 'illmatic.js',
// generatedLine: 2,
// generatedColumn: 0,
// originalLine: 2,
// originalColumn: 0,
// name: null }
// ...
```
### SourceMapGenerator
An instance of the SourceMapGenerator represents a source map which is being
built incrementally.
#### new SourceMapGenerator([startOfSourceMap])
You may pass an object with the following properties:
* `file`: The filename of the generated source that this source map is
associated with.
* `sourceRoot`: A root for all relative URLs in this source map.
* `skipValidation`: Optional. When `true`, disables validation of mappings as
they are added. This can improve performance but should be used with
discretion, as a last resort. Even then, one should avoid using this flag when
running tests, if possible.
```js
var generator = new sourceMap.SourceMapGenerator({
file: "my-generated-javascript-file.js",
sourceRoot: "http://example.com/app/js/"
});
```
#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)
Creates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.
* `sourceMapConsumer` The SourceMap.
```js
var generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);
```
#### SourceMapGenerator.prototype.addMapping(mapping)
Add a single mapping from original source line and column to the generated
source's line and column for this source map being created. The mapping object
should have the following properties:
* `generated`: An object with the generated line and column positions.
* `original`: An object with the original line and column positions.
* `source`: The original source file (relative to the sourceRoot).
* `name`: An optional original token name for this mapping.
```js
generator.addMapping({
source: "module-one.scm",
original: { line: 128, column: 0 },
generated: { line: 3, column: 456 }
})
```
#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)
Set the source content for an original source file.
* `sourceFile` the URL of the original source file.
* `sourceContent` the content of the source file.
```js
generator.setSourceContent("module-one.scm",
fs.readFileSync("path/to/module-one.scm"))
```
#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])
Applies a SourceMap for a source file to the SourceMap.
Each mapping to the supplied source file is rewritten using the
supplied SourceMap. Note: The resolution for the resulting mappings
is the minimum of this map and the supplied map.
* `sourceMapConsumer`: The SourceMap to be applied.
* `sourceFile`: Optional. The filename of the source file.
If omitted, sourceMapConsumer.file will be used, if it exists.
Otherwise an error will be thrown.
* `sourceMapPath`: Optional. The dirname of the path to the SourceMap
to be applied. If relative, it is relative to the SourceMap.
This parameter is needed when the two SourceMaps aren't in the same
directory, and the SourceMap to be applied contains relative source
paths. If so, those relative source paths need to be rewritten
relative to the SourceMap.
If omitted, it is assumed that both SourceMaps are in the same directory,
thus not needing any rewriting. (Supplying `'.'` has the same effect.)
#### SourceMapGenerator.prototype.toString()
Renders the source map being generated to a string.
```js
generator.toString()
// '{"version":3,"sources":["module-one.scm"],"names":[],"mappings":"...snip...","file":"my-generated-javascript-file.js","sourceRoot":"http://example.com/app/js/"}'
```
### SourceNode
SourceNodes provide a way to abstract over interpolating and/or concatenating
snippets of generated JavaScript source code, while maintaining the line and
column information associated between those snippets and the original source
code. This is useful as the final intermediate representation a compiler might
use before outputting the generated JS and source map.
#### new SourceNode([line, column, source[, chunk[, name]]])
* `line`: The original line number associated with this source node, or null if
it isn't associated with an original line. The line number is 1-based.
* `column`: The original column number associated with this source node, or null
if it isn't associated with an original column. The column number
is 0-based.
* `source`: The original source's filename; null if no filename is provided.
* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see
below.
* `name`: Optional. The original identifier.
```js
var node = new SourceNode(1, 2, "a.cpp", [
new SourceNode(3, 4, "b.cpp", "extern int status;\n"),
new SourceNode(5, 6, "c.cpp", "std::string* make_string(size_t n);\n"),
new SourceNode(7, 8, "d.cpp", "int main(int argc, char** argv) {}\n"),
]);
```
#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])
Creates a SourceNode from generated code and a SourceMapConsumer.
* `code`: The generated code
* `sourceMapConsumer` The SourceMap for the generated code
* `relativePath` The optional path that relative sources in `sourceMapConsumer`
should be relative to.
```js
var consumer = new SourceMapConsumer(fs.readFileSync("path/to/my-file.js.map", "utf8"));
var node = SourceNode.fromStringWithSourceMap(fs.readFileSync("path/to/my-file.js"),
consumer);
```
#### SourceNode.prototype.add(chunk)
Add a chunk of generated JS to this source node.
* `chunk`: A string snippet of generated JS code, another instance of
`SourceNode`, or an array where each member is one of those things.
```js
node.add(" + ");
node.add(otherNode);
node.add([leftHandOperandNode, " + ", rightHandOperandNode]);
```
#### SourceNode.prototype.prepend(chunk)
Prepend a chunk of generated JS to this source node.
* `chunk`: A string snippet of generated JS code, another instance of
`SourceNode`, or an array where each member is one of those things.
```js
node.prepend("/** Build Id: f783haef86324gf **/\n\n");
```
#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)
Set the source content for a source file. This will be added to the
`SourceMap` in the `sourcesContent` field.
* `sourceFile`: The filename of the source file
* `sourceContent`: The content of the source file
```js
node.setSourceContent("module-one.scm",
fs.readFileSync("path/to/module-one.scm"))
```
#### SourceNode.prototype.walk(fn)
Walk over the tree of JS snippets in this node and its children. The walking
function is called once for each snippet of JS and is passed that snippet and
the its original associated source's line/column location.
* `fn`: The traversal function.
```js
var node = new SourceNode(1, 2, "a.js", [
new SourceNode(3, 4, "b.js", "uno"),
"dos",
[
"tres",
new SourceNode(5, 6, "c.js", "quatro")
]
]);
node.walk(function (code, loc) { console.log("WALK:", code, loc); })
// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }
// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }
// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }
// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }
```
#### SourceNode.prototype.walkSourceContents(fn)
Walk over the tree of SourceNodes. The walking function is called for each
source file content and is passed the filename and source content.
* `fn`: The traversal function.
```js
var a = new SourceNode(1, 2, "a.js", "generated from a");
a.setSourceContent("a.js", "original a");
var b = new SourceNode(1, 2, "b.js", "generated from b");
b.setSourceContent("b.js", "original b");
var c = new SourceNode(1, 2, "c.js", "generated from c");
c.setSourceContent("c.js", "original c");
var node = new SourceNode(null, null, null, [a, b, c]);
node.walkSourceContents(function (source, contents) { console.log("WALK:", source, ":", contents); })
// WALK: a.js : original a
// WALK: b.js : original b
// WALK: c.js : original c
```
#### SourceNode.prototype.join(sep)
Like `Array.prototype.join` except for SourceNodes. Inserts the separator
between each of this source node's children.
* `sep`: The separator.
```js
var lhs = new SourceNode(1, 2, "a.rs", "my_copy");
var operand = new SourceNode(3, 4, "a.rs", "=");
var rhs = new SourceNode(5, 6, "a.rs", "orig.clone()");
var node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);
var joinedNode = node.join(" ");
```
#### SourceNode.prototype.replaceRight(pattern, replacement)
Call `String.prototype.replace` on the very right-most source snippet. Useful
for trimming white space from the end of a source node, etc.
* `pattern`: The pattern to replace.
* `replacement`: The thing to replace the pattern with.
```js
// Trim trailing white space.
node.replaceRight(/\s*$/, "");
```
#### SourceNode.prototype.toString()
Return the string representation of this source node. Walks over the tree and
concatenates all the various snippets together to one string.
```js
var node = new SourceNode(1, 2, "a.js", [
new SourceNode(3, 4, "b.js", "uno"),
"dos",
[
"tres",
new SourceNode(5, 6, "c.js", "quatro")
]
]);
node.toString()
// 'unodostresquatro'
```
#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])
Returns the string representation of this tree of source nodes, plus a
SourceMapGenerator which contains all the mappings between the generated and
original sources.
The arguments are the same as those to `new SourceMapGenerator`.
```js
var node = new SourceNode(1, 2, "a.js", [
new SourceNode(3, 4, "b.js", "uno"),
"dos",
[
"tres",
new SourceNode(5, 6, "c.js", "quatro")
]
]);
node.toStringWithSourceMap({ file: "my-output-file.js" })
// { code: 'unodostresquatro',
// map: [object SourceMapGenerator] }
```

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{
"name": "source-map",
"description": "Generates and consumes source maps",
"version": "0.6.1",
"homepage": "https://github.com/mozilla/source-map",
"author": "Nick Fitzgerald <nfitzgerald@mozilla.com>",
"contributors": [
"Tobias Koppers <tobias.koppers@googlemail.com>",
"Duncan Beevers <duncan@dweebd.com>",
"Stephen Crane <scrane@mozilla.com>",
"Ryan Seddon <seddon.ryan@gmail.com>",
"Miles Elam <miles.elam@deem.com>",
"Mihai Bazon <mihai.bazon@gmail.com>",
"Michael Ficarra <github.public.email@michael.ficarra.me>",
"Todd Wolfson <todd@twolfson.com>",
"Alexander Solovyov <alexander@solovyov.net>",
"Felix Gnass <fgnass@gmail.com>",
"Conrad Irwin <conrad.irwin@gmail.com>",
"usrbincc <usrbincc@yahoo.com>",
"David Glasser <glasser@davidglasser.net>",
"Chase Douglas <chase@newrelic.com>",
"Evan Wallace <evan.exe@gmail.com>",
"Heather Arthur <fayearthur@gmail.com>",
"Hugh Kennedy <hughskennedy@gmail.com>",
"David Glasser <glasser@davidglasser.net>",
"Simon Lydell <simon.lydell@gmail.com>",
"Jmeas Smith <jellyes2@gmail.com>",
"Michael Z Goddard <mzgoddard@gmail.com>",
"azu <azu@users.noreply.github.com>",
"John Gozde <john@gozde.ca>",
"Adam Kirkton <akirkton@truefitinnovation.com>",
"Chris Montgomery <christopher.montgomery@dowjones.com>",
"J. Ryan Stinnett <jryans@gmail.com>",
"Jack Herrington <jherrington@walmartlabs.com>",
"Chris Truter <jeffpalentine@gmail.com>",
"Daniel Espeset <daniel@danielespeset.com>",
"Jamie Wong <jamie.lf.wong@gmail.com>",
"Eddy Bruël <ejpbruel@mozilla.com>",
"Hawken Rives <hawkrives@gmail.com>",
"Gilad Peleg <giladp007@gmail.com>",
"djchie <djchie.dev@gmail.com>",
"Gary Ye <garysye@gmail.com>",
"Nicolas Lalevée <nicolas.lalevee@hibnet.org>"
],
"repository": {
"type": "git",
"url": "http://github.com/mozilla/source-map.git"
},
"main": "./source-map.js",
"files": [
"source-map.js",
"source-map.d.ts",
"lib/",
"dist/source-map.debug.js",
"dist/source-map.js",
"dist/source-map.min.js",
"dist/source-map.min.js.map"
],
"engines": {
"node": ">=0.10.0"
},
"license": "BSD-3-Clause",
"scripts": {
"test": "npm run build && node test/run-tests.js",
"build": "webpack --color",
"toc": "doctoc --title '## Table of Contents' README.md && doctoc --title '## Table of Contents' CONTRIBUTING.md"
},
"devDependencies": {
"doctoc": "^0.15.0",
"webpack": "^1.12.0"
},
"typings": "source-map"
}

98
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export interface StartOfSourceMap {
file?: string;
sourceRoot?: string;
}
export interface RawSourceMap extends StartOfSourceMap {
version: string;
sources: string[];
names: string[];
sourcesContent?: string[];
mappings: string;
}
export interface Position {
line: number;
column: number;
}
export interface LineRange extends Position {
lastColumn: number;
}
export interface FindPosition extends Position {
// SourceMapConsumer.GREATEST_LOWER_BOUND or SourceMapConsumer.LEAST_UPPER_BOUND
bias?: number;
}
export interface SourceFindPosition extends FindPosition {
source: string;
}
export interface MappedPosition extends Position {
source: string;
name?: string;
}
export interface MappingItem {
source: string;
generatedLine: number;
generatedColumn: number;
originalLine: number;
originalColumn: number;
name: string;
}
export class SourceMapConsumer {
static GENERATED_ORDER: number;
static ORIGINAL_ORDER: number;
static GREATEST_LOWER_BOUND: number;
static LEAST_UPPER_BOUND: number;
constructor(rawSourceMap: RawSourceMap);
computeColumnSpans(): void;
originalPositionFor(generatedPosition: FindPosition): MappedPosition;
generatedPositionFor(originalPosition: SourceFindPosition): LineRange;
allGeneratedPositionsFor(originalPosition: MappedPosition): Position[];
hasContentsOfAllSources(): boolean;
sourceContentFor(source: string, returnNullOnMissing?: boolean): string;
eachMapping(callback: (mapping: MappingItem) => void, context?: any, order?: number): void;
}
export interface Mapping {
generated: Position;
original: Position;
source: string;
name?: string;
}
export class SourceMapGenerator {
constructor(startOfSourceMap?: StartOfSourceMap);
static fromSourceMap(sourceMapConsumer: SourceMapConsumer): SourceMapGenerator;
addMapping(mapping: Mapping): void;
setSourceContent(sourceFile: string, sourceContent: string): void;
applySourceMap(sourceMapConsumer: SourceMapConsumer, sourceFile?: string, sourceMapPath?: string): void;
toString(): string;
}
export interface CodeWithSourceMap {
code: string;
map: SourceMapGenerator;
}
export class SourceNode {
constructor();
constructor(line: number, column: number, source: string);
constructor(line: number, column: number, source: string, chunk?: string, name?: string);
static fromStringWithSourceMap(code: string, sourceMapConsumer: SourceMapConsumer, relativePath?: string): SourceNode;
add(chunk: string): void;
prepend(chunk: string): void;
setSourceContent(sourceFile: string, sourceContent: string): void;
walk(fn: (chunk: string, mapping: MappedPosition) => void): void;
walkSourceContents(fn: (file: string, content: string) => void): void;
join(sep: string): SourceNode;
replaceRight(pattern: string, replacement: string): SourceNode;
toString(): string;
toStringWithSourceMap(startOfSourceMap?: StartOfSourceMap): CodeWithSourceMap;
}

8
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/*
* Copyright 2009-2011 Mozilla Foundation and contributors
* Licensed under the New BSD license. See LICENSE.txt or:
* http://opensource.org/licenses/BSD-3-Clause
*/
exports.SourceMapGenerator = require('./lib/source-map-generator').SourceMapGenerator;
exports.SourceMapConsumer = require('./lib/source-map-consumer').SourceMapConsumer;
exports.SourceNode = require('./lib/source-node').SourceNode;

62
frontend/node_modules/css-tree/package.json generated vendored Normal file
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{
"name": "css-tree",
"version": "1.0.0-alpha.37",
"description": "CSSTree is a tool set to work with CSS, including fast detailed parser (string->AST), walker (AST traversal), generator (AST->string) and lexer (validation and matching) based on knowledge of spec and browser implementations",
"author": "Roman Dvornov <rdvornov@gmail.com> (https://github.com/lahmatiy)",
"license": "MIT",
"repository": "csstree/csstree",
"keywords": [
"css",
"ast",
"tokenizer",
"parser",
"walker",
"lexer",
"generator",
"utils",
"syntax",
"validation"
],
"main": "./lib/index",
"browser": {
"./data": "./dist/default-syntax.json"
},
"scripts": {
"build": "npm run gen:syntax && rollup --config && terser dist/csstree.js --compress --mangle -o dist/csstree.min.js",
"lint": "eslint data lib scripts test && node scripts/review-syntax-patch --lint && node scripts/update-docs --lint",
"lint-and-test": "npm run lint && npm test",
"update:docs": "node scripts/update-docs",
"gen:syntax": "node scripts/gen-syntax-data",
"review:syntax-patch": "node scripts/review-syntax-patch",
"test": "mocha --reporter progress",
"coverage": "nyc npm test",
"travis": "nyc npm run lint-and-test && npm run coveralls",
"coveralls": "nyc report --reporter=text-lcov | coveralls",
"prepublishOnly": "npm run build",
"hydrogen": "node --trace-hydrogen --trace-phase=Z --trace-deopt --code-comments --hydrogen-track-positions --redirect-code-traces --redirect-code-traces-to=code.asm --trace_hydrogen_file=code.cfg --print-opt-code bin/parse --stat -o /dev/null"
},
"dependencies": {
"mdn-data": "2.0.4",
"source-map": "^0.6.1"
},
"devDependencies": {
"coveralls": "^3.0.4",
"eslint": "^6.3.0",
"json-to-ast": "^2.1.0",
"mocha": "^5.2.0",
"nyc": "^14.1.1",
"rollup": "^1.22.0",
"rollup-plugin-commonjs": "^10.1.0",
"rollup-plugin-json": "^4.0.0",
"rollup-plugin-node-resolve": "^5.2.0",
"terser": "^4.3.4"
},
"engines": {
"node": ">=8.0.0"
},
"files": [
"data",
"dist",
"lib"
]
}