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Release v4.4.0 #4345

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5 changes: 5 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,5 +1,10 @@
## Change Log

### v4.4.0 (2025-05-31)

- [#4337](https://github.com/less/less.js/pull/4337) add support for layer at-rule (@puckowski)
- [#4340](https://github.com/less/less.js/pull/4340) Add support for import at-rule layer functionality (@puckowski)

### v4.3.0 (2025-04-04)

- [#4319](https://github.com/less/less.js/pull/4319) Add deprecation warnings to Less output during parsing and new quiet flag (@matthew-dean)
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102 changes: 98 additions & 4 deletions dist/less.js
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@@ -1,5 +1,5 @@
/**
* Less - Leaner CSS v4.3.0
* Less - Leaner CSS v4.4.0
* http://lesscss.org
*
* Copyright (c) 2009-2025, Alexis Sellier <self@cloudhead.net>
Expand Down Expand Up @@ -5179,6 +5179,7 @@
var hasUnknown;
var hasBlock = true;
var isRooted = true;
var isKeywordList = false;
if (parserInput.currentChar() !== '@') {
return;
}
Expand Down Expand Up @@ -5216,6 +5217,9 @@
case '@starting-style':
isRooted = false;
break;
case '@layer':
isRooted = false;
break;
default:
hasUnknown = true;
break;
Expand Down Expand Up @@ -5247,8 +5251,33 @@
}
if (hasBlock) {
rules = this.blockRuleset();
parserInput.save();
if (!rules && !isRooted) {
value = this.entity();
rules = this.blockRuleset();
}
if (!rules && !isRooted) {
parserInput.restore();
var e = [];
value = this.entity();
while (parserInput.$char(',')) {
e.push(value);
value = this.entity();
}
if (value && e.length > 0) {
e.push(value);
value = e;
isKeywordList = true;
}
else {
rules = this.blockRuleset();
}
}
else {
parserInput.forget();
}
}
if (rules || (!hasBlock && value && parserInput.$char(';'))) {
if (rules || isKeywordList || (!hasBlock && value && parserInput.$char(';'))) {
parserInput.forget();
return new (tree.AtRule)(name, value, rules, index + currentIndex, fileInfo, context.dumpLineNumbers ? getDebugInfo(index) : null, isRooted);
}
Expand Down Expand Up @@ -7016,6 +7045,7 @@
this.value = visitor.visitArray(this.value);
},
eval: function (context) {
var noSpacing = this.noSpacing;
var returnValue;
var mathOn = context.isMathOn();
var inParenthesis = this.parens;
Expand Down Expand Up @@ -7047,6 +7077,7 @@
&& (!(returnValue instanceof Dimension))) {
returnValue = new Paren(returnValue);
}
returnValue.noSpacing = returnValue.noSpacing || noSpacing;
return returnValue;
},
genCSS: function (context, output) {
Expand Down Expand Up @@ -7212,6 +7243,13 @@
else {
return rules.filter(function (node) { return (node.type === 'Declaration' || node.type === 'Comment'); }).length === rules.length;
}
}, keywordList: function (rules) {
if (!Array.isArray(rules)) {
return false;
}
else {
return rules.filter(function (node) { return (node.type === 'Keyword' || node.type === 'Comment'); }).length === rules.length;
}
}, accept: function (visitor) {
var value = this.value, rules = this.rules, declarations = this.declarations;
if (rules) {
Expand Down Expand Up @@ -7254,6 +7292,9 @@
context.mediaBlocks = [];
if (value) {
value = value.eval(context);
if (value.value && this.keywordList(value.value)) {
value = new Anonymous(value.value.map(function (keyword) { return keyword.value; }).join(', '), this.getIndex(), this.fileInfo());
}
}
if (rules) {
rules = this.evalRoot(context, rules);
Expand Down Expand Up @@ -8008,26 +8049,79 @@
return [];
}
}
if (this.features) {
var featureValue = this.features.value;
if (Array.isArray(featureValue) && featureValue.length >= 1) {
var expr = featureValue[0];
if (expr.type === 'Expression' && Array.isArray(expr.value) && expr.value.length >= 2) {
featureValue = expr.value;
var isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
&& featureValue[1].type === 'Paren';
if (isLayer) {
this.css = false;
}
}
}
}
if (this.options.inline) {
var contents = new Anonymous(this.root, 0, {
filename: this.importedFilename,
reference: this.path._fileInfo && this.path._fileInfo.reference
}, true, true);
return this.features ? new Media([contents], this.features.value) : [contents];
}
else if (this.css) {
else if (this.css || this.layerCss) {
var newImport = new Import(this.evalPath(context), features, this.options, this._index);
if (this.layerCss) {
newImport.css = this.layerCss;
newImport.path._fileInfo = this._fileInfo;
}
if (!newImport.css && this.error) {
throw this.error;
}
return newImport;
}
else if (this.root) {
if (this.features) {
var featureValue = this.features.value;
if (Array.isArray(featureValue) && featureValue.length === 1) {
var expr = featureValue[0];
if (expr.type === 'Expression' && Array.isArray(expr.value) && expr.value.length >= 2) {
featureValue = expr.value;
var isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
&& featureValue[1].type === 'Paren';
if (isLayer) {
this.layerCss = true;
featureValue[0] = new Expression(featureValue.slice(0, 2));
featureValue.splice(1, 1);
featureValue[0].noSpacing = true;
return this;
}
}
}
}
ruleset = new Ruleset(null, copyArray(this.root.rules));
ruleset.evalImports(context);
return this.features ? new Media(ruleset.rules, this.features.value) : ruleset.rules;
}
else {
if (this.features) {
var featureValue = this.features.value;
if (Array.isArray(featureValue) && featureValue.length >= 1) {
featureValue = featureValue[0].value;
if (Array.isArray(featureValue) && featureValue.length >= 2) {
var isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
&& featureValue[1].type === 'Paren';
if (isLayer) {
this.css = true;
featureValue[0] = new Expression(featureValue.slice(0, 2));
featureValue.splice(1, 1);
featureValue[0].noSpacing = true;
return this;
}
}
}
}
return [];
}
}
Expand Down Expand Up @@ -11025,7 +11119,7 @@
return render;
}

var version = "4.3.0";
var version = "4.4.0";

function parseNodeVersion(version) {
var match = version.match(/^v(\d{1,2})\.(\d{1,2})\.(\d{1,2})(?:-([0-9A-Za-z-.]+))?(?:\+([0-9A-Za-z-.]+))?$/); // eslint-disable-line max-len
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4 changes: 2 additions & 2 deletions dist/less.min.js
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2 changes: 1 addition & 1 deletion dist/less.min.js.map
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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
{
"name": "@less/root",
"private": true,
"version": "4.3.0",
"version": "4.4.0",
"description": "Less monorepo",
"homepage": "http://lesscss.org",
"scripts": {
Expand Down
102 changes: 98 additions & 4 deletions packages/less/dist/less.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/**
* Less - Leaner CSS v4.3.0
* Less - Leaner CSS v4.4.0
* http://lesscss.org
*
* Copyright (c) 2009-2025, Alexis Sellier <self@cloudhead.net>
Expand Down Expand Up @@ -5179,6 +5179,7 @@
var hasUnknown;
var hasBlock = true;
var isRooted = true;
var isKeywordList = false;
if (parserInput.currentChar() !== '@') {
return;
}
Expand Down Expand Up @@ -5216,6 +5217,9 @@
case '@starting-style':
isRooted = false;
break;
case '@layer':
isRooted = false;
break;
default:
hasUnknown = true;
break;
Expand Down Expand Up @@ -5247,8 +5251,33 @@
}
if (hasBlock) {
rules = this.blockRuleset();
parserInput.save();
if (!rules && !isRooted) {
value = this.entity();
rules = this.blockRuleset();
}
if (!rules && !isRooted) {
parserInput.restore();
var e = [];
value = this.entity();
while (parserInput.$char(',')) {
e.push(value);
value = this.entity();
}
if (value && e.length > 0) {
e.push(value);
value = e;
isKeywordList = true;
}
else {
rules = this.blockRuleset();
}
}
else {
parserInput.forget();
}
}
if (rules || (!hasBlock && value && parserInput.$char(';'))) {
if (rules || isKeywordList || (!hasBlock && value && parserInput.$char(';'))) {
parserInput.forget();
return new (tree.AtRule)(name, value, rules, index + currentIndex, fileInfo, context.dumpLineNumbers ? getDebugInfo(index) : null, isRooted);
}
Expand Down Expand Up @@ -7016,6 +7045,7 @@
this.value = visitor.visitArray(this.value);
},
eval: function (context) {
var noSpacing = this.noSpacing;
var returnValue;
var mathOn = context.isMathOn();
var inParenthesis = this.parens;
Expand Down Expand Up @@ -7047,6 +7077,7 @@
&& (!(returnValue instanceof Dimension))) {
returnValue = new Paren(returnValue);
}
returnValue.noSpacing = returnValue.noSpacing || noSpacing;
return returnValue;
},
genCSS: function (context, output) {
Expand Down Expand Up @@ -7212,6 +7243,13 @@
else {
return rules.filter(function (node) { return (node.type === 'Declaration' || node.type === 'Comment'); }).length === rules.length;
}
}, keywordList: function (rules) {
if (!Array.isArray(rules)) {
return false;
}
else {
return rules.filter(function (node) { return (node.type === 'Keyword' || node.type === 'Comment'); }).length === rules.length;
}
}, accept: function (visitor) {
var value = this.value, rules = this.rules, declarations = this.declarations;
if (rules) {
Expand Down Expand Up @@ -7254,6 +7292,9 @@
context.mediaBlocks = [];
if (value) {
value = value.eval(context);
if (value.value && this.keywordList(value.value)) {
value = new Anonymous(value.value.map(function (keyword) { return keyword.value; }).join(', '), this.getIndex(), this.fileInfo());
}
}
if (rules) {
rules = this.evalRoot(context, rules);
Expand Down Expand Up @@ -8008,26 +8049,79 @@
return [];
}
}
if (this.features) {
var featureValue = this.features.value;
if (Array.isArray(featureValue) && featureValue.length >= 1) {
var expr = featureValue[0];
if (expr.type === 'Expression' && Array.isArray(expr.value) && expr.value.length >= 2) {
featureValue = expr.value;
var isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
&& featureValue[1].type === 'Paren';
if (isLayer) {
this.css = false;
}
}
}
}
if (this.options.inline) {
var contents = new Anonymous(this.root, 0, {
filename: this.importedFilename,
reference: this.path._fileInfo && this.path._fileInfo.reference
}, true, true);
return this.features ? new Media([contents], this.features.value) : [contents];
}
else if (this.css) {
else if (this.css || this.layerCss) {
var newImport = new Import(this.evalPath(context), features, this.options, this._index);
if (this.layerCss) {
newImport.css = this.layerCss;
newImport.path._fileInfo = this._fileInfo;
}
if (!newImport.css && this.error) {
throw this.error;
}
return newImport;
}
else if (this.root) {
if (this.features) {
var featureValue = this.features.value;
if (Array.isArray(featureValue) && featureValue.length === 1) {
var expr = featureValue[0];
if (expr.type === 'Expression' && Array.isArray(expr.value) && expr.value.length >= 2) {
featureValue = expr.value;
var isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
&& featureValue[1].type === 'Paren';
if (isLayer) {
this.layerCss = true;
featureValue[0] = new Expression(featureValue.slice(0, 2));
featureValue.splice(1, 1);
featureValue[0].noSpacing = true;
return this;
}
}
}
}
ruleset = new Ruleset(null, copyArray(this.root.rules));
ruleset.evalImports(context);
return this.features ? new Media(ruleset.rules, this.features.value) : ruleset.rules;
}
else {
if (this.features) {
var featureValue = this.features.value;
if (Array.isArray(featureValue) && featureValue.length >= 1) {
featureValue = featureValue[0].value;
if (Array.isArray(featureValue) && featureValue.length >= 2) {
var isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
&& featureValue[1].type === 'Paren';
if (isLayer) {
this.css = true;
featureValue[0] = new Expression(featureValue.slice(0, 2));
featureValue.splice(1, 1);
featureValue[0].noSpacing = true;
return this;
}
}
}
}
return [];
}
}
Expand Down Expand Up @@ -11025,7 +11119,7 @@
return render;
}

var version = "4.3.0";
var version = "4.4.0";

function parseNodeVersion(version) {
var match = version.match(/^v(\d{1,2})\.(\d{1,2})\.(\d{1,2})(?:-([0-9A-Za-z-.]+))?(?:\+([0-9A-Za-z-.]+))?$/); // eslint-disable-line max-len
Expand Down
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