Released Versions

less4j-1.11.0

• Fixed OutOfMemory error when compiling heavy sources.
• Grammar refactoring, parsing phase should be slightly faster.

less4j-1.10.0

• Enabled bubbling for all css directives (at-rules).
• Namespaces can have guards.
• Mixins with parameters are not used as namespaces.
• Darken, lighten, saturate, desaturate, fadein and fadeout functions can work in both absolute and relative modes.
• Svg-gradient accepts list of colors as parameter.
• Fixed scope issues that caused mixins looping failures.
• Non-breaking space unicode character (U+00A0) is treated as whitespace.
• Declaration values allow slash, so ie hack 0\9 is possible.
• Detached rulesets used as mixin argument defaults do not generate warning.

less4j-1.9.0

• Improved error reporting. Errors and warnings now display three lines of code which caused the problem.
• Import has new optional option.
• Added isruleset function. It returns true if parameter contains detached ruleset.
• Data-uri function does not default to base64 on svg files. Svg files are now are treated same way as other text files.
• Equality ignores difference in color notation e.g. lima is equal to #008800 and to #080.
• Color that was not manipulated keeps its form when printed into output.
• The %s option of format function allows also colors.
• Format function keeps quote types of its format parameter.
• Import supports multiple options.
• Data-uri function generates large data warning from length of encoded data.
• Color names (red, blue) are allowed as names of indirectly referenced variables.
• Fixed parser failure on some special variable names followed by space.
• Less.js compatibility: Allows pointless comma , on the end of selector.

less4j-1.8.5

• underscore (_) is now allowed inside selectors, mixin names, etc,
• !important can be used inside variable declarations,
• extend supports multiple selectors as arguments,
• the transparent css color name is interpreted as color,
• fixed import inline of css files,
• fixed error returned by import inline on unavailable file,
• fixed extend of rulesets nested inside media and supports imported by reference.

less4j-1.8.4

• support for /deep/ combinator,
• allowed $ and . in expression identifiers (e.g. $aa.bb),
• allowed empty variables,
• source files without mappable symbols are now added into source map files list.

less4j-1.8.3

• switched default encoding to utf-8,
• relative file source now inherits charset of its parent,
• less file source has new constructor to make it more extensible.

less4j-1.8.2

• Bugfix: last mixin call does not have to be followed by semicolon.

less4j-1.8.1

• fragments handling to data-uri function,
• support for ANTLR 3.5.

less4j-1.8.0

• enabled re-iteration of string interpolation,
• added hsvhue, hsvsaturation, hsvvalue, luminance color functions,
• added min, max, length functions,
• added isurl, isunit, get-unit functions,
• added replace and svg-gradient functions.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.
• 2: re-iteration of string interpolation might be changed in the future depending on https://github.com/less/less.js/issues/2094

less4j-1.7.0

• detached rulesets are now implemented,
• optional minification of generated css,
• allowed custom source maps urls,
• charset support for URISource and FileSource,
• media and rulesets with empty bodies are removed.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.6.1

• indirect variables are allowed to reference all types - including escaped values,
• imported once is now default behavior,
• import files order fixed.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.6.0

• support for inline source maps,
• generated source map can contain content of original less files.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.5.4

• color functions keep rgb values as rgb - they used to convert them into rgba,
• equal operator on strings ignores quote types e.g. 'value'="value",
• added support for custom css directives.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.5.3

• allowed extended names in mixin calls, namespaces names and mixins names,
• added support for variables in charsets and keyframes,
• added guards on css styles.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.5.2

• added api for embedded scripting - including custom interpolation.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.
• 2: less4j-javascript plugin was released simultaneously.

less4j-1.5.1

• scripts inside `..` and ~`...` are new special cases of custom functions.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.5.0

• fixed bug in (reference) import,
• added support for custom functions.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.4.1

• fixed null pointer exception.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.4.0

• default function was made fully compatible with less.js,
• turned off variable interpolation in unquoted urls,
• added cat ^^ and hat ^ shadow DOM selectors,
• added import options,
• deprecated old import-once and import-multiplt.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.3.0

• added support for space separated properties merge,
• added variable interpolation inside import urls.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.
• 2: default function is not compatible with what less.js done.

less4j-1.2.4

• data-uri function for resources embedding,
• default function for mixin guards,
• fixed !important properties are merged separately.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.2.3

• added property name interpolation,
• allowed space separated variables list in media expressions,
• added support for property merge property-name+.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.2.2

• implemented extend all,
• added support for &:extend inside body,
• fixed @import inside jar files.

Notes:

• 1: extend still has some known open issues, however those are open also in less.js.

less4j-1.2.1

• Extend in @media body extends only rulesets defined inside that @media body.
• Looping mixin was not able to call other mixins. It prevented compilation of Bootstrap 3.0.2.

less4j-1.2.0

• first basic version of selectors extend.

Notes:

• 1: the all modifier is not supported and extend from inside media at-rule does not work properly.

less4j-1.1.3

• antlr dependency replaced by antlr-runtime,
• improved speed,
• requires less memory.

less4j-1.1.2

• cycle detection for rulesets usable as mixin,
• support for semicolon at the end of mixin arguments declaration,
• formatting of rbga color does not loose alpha anymore,
• bubbled up media at-rules and nested rulesets keep their relative positions,
• selectors with combinators can be used as mixins,
• multiple & appender bugs fixed.

Special remark:

• compiles Bootstrap 3.0 the same way as less-1.4.2.js.

less4j-1.1.1

• allowed any casing for functions,
• hotfix: 'required class missing' error fixed.

less4j-1.1.0

• first source map support,
• error reporting: less4j exception getMessage and toString show first two compilation errors.

less4j-1.0.4

• mixin return values do not rewrite local scope variables,
• added mixins unlocking.

Special remark:

• created a suite of release tests to ensure correct compilation of twitter bootstrap.

less4j-1.0.3

• fixed scoping issue that caused incorrect bootstrap responsive compilation,
• added support for vendor specific @viewport dialects.

Special remark:

• less4j-1.0.3 compiles twitter bootstrap responsive the same way as less-1.3.3.js.

less4j-1.0.2

• added return values for mixins (1.3.x compatible behavior),
• removed unused dependencies on slf4j.

less4j-1.0.1

• support for @supports,
• jCommander dependency was made optional,
• various bug fixes.

less4j-1.0.0

• floating numbers format bug fix,
• support for @-moz-document.

less4j-0.0.14

• semicolon as mixins arguments divisor,
• allowed variables inside media queries,
• escaped values in guards should are comparable to identifiers,
• strings interpolation now uses hexadecimal representation and ignores original color format,
• appender brought to top level by mixins is removed and does not cause errors anymore,
• urls ending with "/css" are considered css files by import,
• import once ignores differences in path format,
• step up in import directory does not confuse imported file suffix detection,
• rulesets nested in mixins now inherit mixins calls !important flag,
• allowed font-face inside a mixin,
• allowed useless semicolons in bodies,
• additional @charset declarations are now removed,
• leading ampersands are now ignored when doing mixins matching.

Notes:

• 1: mixins and namespaces conventions are not exactly the same as in less.js case.

less4j-0.0.13

• support for unicode range in font-face,
• support for ms filter functions,
• solved name clashes between filter and built-in functions,
• fixed validations and comments in structures with bodies (media, ruleset, page, ...),
• the '=' operator compares only numbers with the same dimension and numbers with no dimension.

Special remark:

• less4j-0.0.13 compiles twitter bootstrap the same way as less-1.3.3.js.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.12

• less.js built-in functions,
• font-face supports less language features (variables, mixins, ...),
• media queries bubbling and merging,
• abstract less source and url based less source for more flexible import files loading.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.11

Bugfix release, no new features.

less4j-0.0.10

• less file import on style sheet top level.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.9

New additions:

• support for CSS3 @viewports,
• support for CSS3 paged media and page margin box,
• duplicate declaration detection in rulesets and viewports,
• list as default value of mixin parameter,
• removed log4j warning in command line.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.8

New additions:

• mixins with extended names,
• rulesets with multiple selectors can be used as mixins,
• cycle detection for variables,
• new functions: format %(...), URI escaping escape(...), less escaping e(...),
• short namespace reference syntax without '>',
• top level mixins and namespaces references,
• list as mixin parameter,
• support for CSS @keyframes animations,
• new validation: appender on top level rulesets is not allowed.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.7

New additions:

• deprecated selectors escaping and variables as pseudo classes parameters,
• added selectors interpolation,
• added math functions,
• star prefix browser hack now works.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.6

New additions:

• less escaping for values and selectors,
• string interpolation.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.5

New additions:

• both css classes and hashes now can be used as mixins,
• better error handling and reporting,
• fix maven jar packaging - it should not contain dependencies.

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.4

New additions:

• & appender for nested rules,
• named arguments for mixins,
• mixins can be used also as namespaces (e.g. closure).

Notes:

• 1: the range of allowed mixins names is more limited then the one in less.js.

less4j-0.0.3

New additions:

• less4j can run as standalone program from command line,
• namespaces,
• thread safety of the default compiler,
• operations on colors.

Notes:

• 1: closures and named arguments for mixins are not implemented in this version.
• 2: the range of allowed namespace names is more limited then the one in less.js.

less4j-0.0.2

New additions:

• mixins,
• lazy loading for variables,
• last win strategy for variables.

Note: closures and named arguments for mixins are not implemented in this version.

less4j-0.0.1

First maven release contains:

• operations (expressions),
• variables,
• nested rules.

Note: variables lazy loading and last win strategy are not implemented in this version.