18 KiB
		
	
	
	
	
	
	
	
			
		
		
	
	
			18 KiB
		
	
	
	
	
	
	
	
4.2.0 (November 26, 2020)
- Trim Custom Property values when possible (#393)
- Fixed removing unit for zero-length dimentions in min(),max()andclamp()functions (#426)
- Fixed crash on bad value in TRBL declaration value (#412)
4.1.1 (November 15, 2020)
- Fixed build setup to exclude full mdn/datathat reduced the lib size:- dist/csso.js: 794.5Kb -> 255.2Kb
- dist/csso.min.js: 394.4Kb -> 194.2Kb
- package size: 237.8 kB -> 156.1 kB
- package unpacked size: 1.3 MB -> 586.8 kB
 
4.1.0 (October 27, 2020)
- Bumped CSSTree to ^1.0.0
- Fixed wrongly merging of TRBL values when one of them contains var()(#420)
- Fixed wrongly merging of pseudo class and element with the same name, e.g. :-ms-input-placeholderand::-ms-input-placeholder(#383, #416)
- Fixed wrongly merging of overflowfallback (#415)
4.0.3 (March 24, 2020)
- Prevented percent sign removal in flex/-ms-flex(#410)
- Fixed restructuring optimisation in some cases (@charlessuh & @chsuh, #358, #411)
- Bumped dependencies (@AviVahl, #409)
4.0.2 (October 28, 2019)
- Fixed clean stage to avoid exceptions when source has unparsed or bad parts (#380)
- Fixed wrong percentage sign removal for zero values (#395)
4.0.1 (October 22, 2019)
- Bumped CSSTree to 1.0.0-alpha.37to avoid source map generation inconsistency across Node.js versions
4.0.0 (October 21, 2019)
- Dropped support for Node.js < 8
- Refreshed dev dependencies and scripts
- Bumped CSSTree to 1.0.0-alpha.36(#399)
- Changed bundle files: dist/csso.jsanddist/csso.min.jsinstead singledist/csso-browser.js(min version)
- Expose compress()assyntax.compress()
3.5.1 (June 7, 2018)
- Bumped CSSTree to 1.0.0-alpha.29(fixes some issues)
3.5.0 (January 14, 2018)
- Migrated to CSSTree 1.0.0-alpha.27
3.4.0 (November 3, 2017)
- Added percent sign removal for zero percentages for some properties that is safe (@RubaXa, #286)
- Removed unit removal for zero values in -ms-flexdue it breaks flex in IE10/11 (#362)
- Improved performance of selectors comparison (@smelukov, #343)
3.3.1 (October 17, 2017)
- Fixed merge of positiondeclarations whenstickyfallback is using (@gruzzilkin, #356)
3.3.0 (October 12, 2017)
- Migrated to CSSTree 1.0.0-alpha25- Changed AST format (see CSSTree change log for details)
- Fixed performance issue when generate CSS with source map (quadratic increase in time depending on the size of the CSS)
 
3.2.0 (September 10, 2017)
- Fixed named color compression to apply only when an identifier is guaranteed to be a color
- Added lifting of @keyframesto the beginning of style sheet (chunk), but after@charsetand@importrules
- Added removal of @keyframes,@mediaand@supportswith no prelude
- Added removal of duplicate @keyframes(#202)
- Added new option forceMediaMergeto force media rules merging. It's unsafe in general, but works fine in many cases. Use it on your own risk (#350)
- Bumped CSSTreeto1.0.0-alpha23
3.1.1 (April 25, 2017)
- Fixed crash on a number processing when it used not in a list (#335)
3.1.0 (April 24, 2017)
- Implemented optimisation for nonekeyword inborderandoutlineproperties (@zoobestik, #41)
- Implemented replacing rgba(x, x, x, 0)totransparent
- Fixed plus sign omitting for numbers following identifier, hex color, number or unicode range, since it can change the meaning of CSS (e.g. calc(1px+2px)has been optimized tocalc(1px2px)before, now it stays the same)
- Improved usage filtering for nested selectors (i.e. for :nth-*(),:has(),:matchesand other pseudos)
- Implemented blacklistfiltering in usage (#334, see Black list filtering)
- Improved white space removing, now white spaces are removing in the beginning and at the ending of sequences, and between stylesheet and block nodes
- Bumped CSSTreeto1.0.0-alpha19
3.0.1 (March 14, 2017)
- Fixed declaration merging when declaration contains an !important
3.0.0 (March 13, 2017)
- Migrated to CSSTree as AST backend and exposed its API behind syntaxproperty
- Extracted CLI into standalone package css/csso-cli
2.3.1 (January 6, 2017)
- Added \0IE hack support (#320)
2.3.0 (October 25, 2016)
- Added beforeCompressandafterCompressoptions support (#316)
- Fixed crash on empty argument in function (#317)
2.2.1 (July 25, 2016)
- Fixed shorthand optimisation issue when value has a color value or something unknown (#311)
- Fixed cursorbroken fallback (#306)
2.2.0 (June 23, 2016)
- Implement AST cloning by adding clone()function andcloneoption forcompress()function (#296)
- Fix parse and translate attribute selector with flags but w/o operator (i.e. [attrName i])
- Don't merge rules with flagged attribute selectors with others (#291)
- Take in account functions when merge TRBL-properties (#297, thanks to @ArturAralin)
- Improve partial merge (#304)
- Tweak scanner, reduce code deoptimizations and other small improvements
2.1.1 (May 11, 2016)
- Fix wrong declaration with \9hack merge (#295)
2.1.0 (May 8, 2016)
- New option commentsto specify what comments to left:exclamation,first-exclamationandnone
- Add offsetto CSS parse error details
- Fix token offsetcomputation
2.0.0 (April 5, 2016)
- No more gonzalesAST format and related code
- minify()and- minifyBlock()is always return an object as result now (i.e.- { css: String, map: SourceMapGenerator or null })
- parse()- Returns AST in new format (so called internal)
- Dynamic scanner implemented
- New AST format + dynamic scanner = performance boost and less memory consumption
- No more contextargument, context should be specified viaoptions
- Supported contexts now: stylesheet,atrule,atruleExpression,ruleset,selector,simpleSelector,block,declarationandvalue
- Drop needPositionsoption,positionsoption should be used instead
- Drop needInfooption,infoobject is attaching to nodes when some information is requested byoptions
- optionsshould be an object, otherwise it treats as empty object
 
- Returns AST in new format (so called 
- compress()- No more AST converting (performance boost and less memory consumption)
- Drop outputAstoption
- Returns an object as result instead of AST (i.e. { ast: Object })
 
- Drop methods: justDoIt(),stringify(),cleanInfo()
1.8.1 (March 30, 2016)
- Don't remove spaces after function/braces/urls since unsafe (#289)
1.8.0 (March 24, 2016)
- Usage data support:
- Filter rulesets by tag names, class names and ids white lists.
- More aggressive ruleset moving using class name scopes information.
- New CLI option --usageto pass usage data file.
 
- Improve initial ruleset merge
- Change order of ruleset processing, now it's left to right. Previously unmerged rulesets may prevent lookup and other rulesets merge.
- Difference in pseudo signature just prevents ruleset merging, but don't stop lookup.
- Simplify block comparison (performance).
 
- New method csso.minifyBlock()for css block compression (e.g.styleattribute content).
- Ruleset merge improvement: at-rules with block (like @mediaor@supports) now can be skipped during ruleset merge lookup if doesn't contain something prevents it.
- FIX: Add negation (:not()) to pseudo signature to avoid unsafe merge (old browsers doesn't support it).
- FIX: Check nested parts of value when compute compatibility. It fixes unsafe property merging.
1.7.1 (March 16, 2016)
- pass block mode to tokenizer for correct parsing of declarations properties with //hack
- fix wrongly @importand@charsetremoval on double exclamation comment
1.7.0 (March 10, 2016)
- support for CSS Custom Properties (#279)
- rework RTBL properties merge – better merge for values with special units and don't merge values with CSS-wide keywords (#255)
- remove redundant universal selectors (#178)
- take in account !importantwhen check for property overriding (#280)
- don't merge text-aligndeclarations with some values (#281)
- add spaces around /deep/combinator on translate, since it together with universal selector can produce a comment
- better keyword and property name resolving (tolerant to hacks and so on)
- integration improvements
- compression log function could be customized by loggeroption forcompress()andminify()
- make possible to set initial line and column for parser
 
- compression log function could be customized by 
1.6.4 (March 1, 2016)
- npmpublish issue (#276)
1.6.3 (February 29, 2016)
- add fileto generated source map since other tools can relay on it in source map transform chain
1.6.2 (February 29, 2016)
- tweak some parse error messages and their positions
- fix :not()parsing and selector groups in:not()is supported now (#215)
- needPositionparser option is deprecated,- positionsoption should be used instead (- needPositionis used still if- positionsoption omitted)
- expose internal AST API as csso.internal.*
- minify()adds- sourcesContentby default when source map is generated
- bring back support for node.js 0.10until major release (#275)
1.6.1 (February 28, 2016)
- fix exception on zero length dimension compress outside declaration (#273)
1.6.0 (February 27, 2016)
- source maps support
- parser remake:
- various parsing issues fixed
- fix unicode sequence processing in ident (#191)
- support for flags in attribute selector (#270)
- position (line and column) of parse error (#109)
- 4x performance boost, less memory consumption
 
- compressor refactoring
- internal AST is using doubly linked lists (with safe transformation support during iteration) instead of arrays
- rename restructuringtorestructureoption forminify()/compress()(restructuringis alias forrestructurenow, with lower priority)
- unquote urls when possible (#141, #60)
 
- setup code coverage and a number of related fixes
- add eslint to check unused things
1.5.4 (January 27, 2016)
- one more fix (in restructRulesetthis time) with merge of rulesets when a ruleset with same specificity places between them (#264)
- disable partial merge of rulesets in @keyframesrulesets (until sure it's correct)
1.5.3 (January 25, 2016)
- don't override display values with different browser support (#259)
- fix publish issue (one of modules leak in development state)
1.5.2 (January 24, 2016)
- don't merge rulesets if between them a ruleset with same specificity (#264)
1.5.1 (January 14, 2016)
- ensure -is not used as an identifier in attribute selectors (thanks to @mathiasbynens)
- fix broken justDoIt()function
- various small fixes
1.5.0 (January 14, 2016)
Parser
- attach minus to number
Compressor
- split code base into small modules and related refactoring
- introduce internal AST format for compressor (gonzales→internalandinternal→gonzalesconvertors, walkers, translator)
- various optimizations: no snapshots, using caches and indexes
- sort selectors, merge selectors in alphabet order
- compute selector's specificity
- better ruleset restructuring, improve compression of partially equal blocks
- better ruleset merge – not only closest but also disjoined by other rulesets when safe
- join @mediawith same query
- outputAst– new option to specify output AST format (- gonzalesby default for backward compatibility)
- remove quotes surrounding attribute values in attribute selectors when possible (#73)
- replace from→0%and100%→toat@keyframes(#205)
- prevent partial merge of rulesets at @keyframes(#80, #197)
API
- walker for gonzalesAST was implemented
CLI
- new option --stat(output stat instderr)
- new optional parameter levelfor--debugoption
1.4.4 (December 10, 2015)
- prevent removal of spaces after braces that before identifier that breaking at-rules expressions (#258)
1.4.3 (December 4, 2015)
- fix unicode-range parsing that cause to wrong function detection (#250)
1.4.2 (November 9, 2015)
- allow spaces between progid:and rest part of value for IE'sfilterproperty asautoprefixergenerates this kind of code (#249)
- fixes for Windows:
- correct processing new lines
- normalize file content in test suite
 
- fixes to work in strict mode (#252)
- init compressor dictionaries for every css block (#248, #251)
- bump uglify-js version
1.4.1 (October 20, 2015)
- allow merge for displayproperty (#167, #244)
- more accurate rect(clipproperty value) merge
- fix typo when specifying options in cli (thanks to @Taritsyn)
- fix safe unit values merge with keyword values (#244)
- fix wrong descendant combinator removal (#246)
- build browser version on prepublish(thanks to @silentroach)
- parser: store whitespaces as single token (performance and reduce memory consumption)
- rearrange compress tests layout
1.4 (October 16, 2015)
Bringing project back to life. Changed files structure, cleaned up and refactored most of sources.
Common
- single code base (no more srcfolder)
- build browser version with browserify(no moremake, andwebfolder), browser version is available atdist/csso-browser.js
- main file is lib/index.jsnow
- minimal node.jsversion is0.12now
- restrict file list to publish on npm (no more useless folders and files in package)
- add jscsto control code style
- automate gh-pagesupdate
- util functions reworked
- translator reworked
- test suite reworked
- compressor refactored
- initial parser refactoring
API
- new method minify(src, options), options:- restructuring– if set to- false, disable structure optimisations (- trueby default)
- debug- outputs intermediate state of CSS during compression (- falseby default)
 
- deprecate justDoIt()method (useminifyinstead)
- rename treeToString()method tostringify()
- drop printTree()method
- AST node info
- columnand- offsetadded
- lnrenamed to- line
- fix line counting across multiple files and input with CR LF (#147)
 
CLI
- completely reworked, use clap to parse argv
- add support for input from stdin (#128)
- drop undocumented and obsoleted options --ruleand--parser(suppose nobody use it)
- drop -offalias for--restructure-offas incorrect (only one letter options should starts with single-)
- new option --debugthat reflecting tooptions.debugforminify
Parsing and optimizations
- keep all exclamation comments (#194)
- add /deep/combinator support (#209)
- attribute selector
- allow colon in attribute name (#237)
- support for namespaces (#233)
 
- color
- support all css/html colors
- convert hslatorgbaandhlstorgb
- convert rgbawith 1 as alpha value torgb(#122)
- interpolate rgbandrgbapercentage values to absolute values
- replace percentage values in rgbafor normalized/interpolated values
- lowercase hex colors and color names (#169)
- fix color minification when hex value replaced for color name (#176)
- fit rgb values to 0..255 range (#181)
 
- calc
- remove spaces for multiple operator in calc
- don't remove units inside calc (#222)
- fix wrong white space removal around +and-(#228)
 
- don't remove units in flexproperty as it could change value meaning (#200)
- don't merge \9hack values (#231)
- merge property values only if they have the same functions (#150, #227)
- don't merge property values with some sort of units (#140, #161)
- fix !importantissue fortop-right-bottom-leftproperties (#189)
- fix top-right-bottom-leftproperties merge (#139, #175)
- support for unicode-range (#148)
- don't crash on ruleset with no selector (#135)
- tolerant to class names that starts with digit (#99, #105)
- fix background compressing (#170)
1.3.12 (October 8, 2015)
- Case insensitive check for !important(#187)
- Fix problems with using cssoas cli command on Windows (#83, #136, #142 and others)
- Remove byte order marker (the UTF-8 BOM) from input
- Don't strip space between funktion-funktion and funktion-vhash (#134)
- Don't merge TRBL values having \9 (hack for IE8 in bootstrap) (#159, #214, #230, #231 and others)
- Don't strip units off dimensions of non-length (#226, #229 and others)
1.3.7 (February 11, 2013)
- Gonzales 1.0.7.
1.3.6 (November 26, 2012)
- Gonzales 1.0.6.
1.3.5 (October 28, 2012)
- Gonzales 1.0.5.
- Protecting copyright notices in CSS: https://github.com/css/csso/issues/92
- Zero CSS throws an error: https://github.com/css/csso/issues/96
- Don't minify the second 0sin Firefox for animations: https://github.com/css/csso/issues/100
- Japan manual
- BEM ready documentation
1.3.4 (October 10, 2012)
- @page inside @media Causes Error: https://github.com/css/csso/issues/90
1.3.3 (October 9, 2012)
- CSSO 1.3.2 compresses ".t-1" and ".t-01" as identical classes: https://github.com/css/csso/issues/88
1.3.2 (October 8, 2012)
- filter + important breaks CSSO v1.3.1: https://github.com/css/csso/issues/87
1.3.1 (October 8, 2012)
- "filter" IE property breaks CSSO v1.3.0: https://github.com/css/csso/issues/86
1.3.0 (October 4, 2012)
- PeCode CSS parser replaced by Gonzales CSS parser