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Add a LESS linter.

Summary: This class provides an adapter for [[https://github.com/less/less.js/ | lessc]].

Test Plan: Wrote and executed unit tests.

Reviewers: chad, #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D8992
This commit is contained in:
Joshua Spence 2014-05-06 06:50:44 -07:00 committed by epriestley
parent 9a13c87ac4
commit 88ff113f92
96 changed files with 3860 additions and 0 deletions

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@ -87,6 +87,8 @@ phutil_register_library_map(array(
'ArcanistJSONLintLinter' => 'lint/linter/ArcanistJSONLintLinter.php', 'ArcanistJSONLintLinter' => 'lint/linter/ArcanistJSONLintLinter.php',
'ArcanistJSONLintLinterTestCase' => 'lint/linter/__tests__/ArcanistJSONLintLinterTestCase.php', 'ArcanistJSONLintLinterTestCase' => 'lint/linter/__tests__/ArcanistJSONLintLinterTestCase.php',
'ArcanistLandWorkflow' => 'workflow/ArcanistLandWorkflow.php', 'ArcanistLandWorkflow' => 'workflow/ArcanistLandWorkflow.php',
'ArcanistLesscLinter' => 'lint/linter/ArcanistLesscLinter.php',
'ArcanistLesscLinterTestCase' => 'lint/linter/__tests__/ArcanistLesscLinterTestCase.php',
'ArcanistLiberateWorkflow' => 'workflow/ArcanistLiberateWorkflow.php', 'ArcanistLiberateWorkflow' => 'workflow/ArcanistLiberateWorkflow.php',
'ArcanistLintConsoleRenderer' => 'lint/renderer/ArcanistLintConsoleRenderer.php', 'ArcanistLintConsoleRenderer' => 'lint/renderer/ArcanistLintConsoleRenderer.php',
'ArcanistLintEngine' => 'lint/engine/ArcanistLintEngine.php', 'ArcanistLintEngine' => 'lint/engine/ArcanistLintEngine.php',
@ -254,6 +256,8 @@ phutil_register_library_map(array(
'ArcanistJSONLintLinter' => 'ArcanistExternalLinter', 'ArcanistJSONLintLinter' => 'ArcanistExternalLinter',
'ArcanistJSONLintLinterTestCase' => 'ArcanistArcanistLinterTestCase', 'ArcanistJSONLintLinterTestCase' => 'ArcanistArcanistLinterTestCase',
'ArcanistLandWorkflow' => 'ArcanistBaseWorkflow', 'ArcanistLandWorkflow' => 'ArcanistBaseWorkflow',
'ArcanistLesscLinter' => 'ArcanistExternalLinter',
'ArcanistLesscLinterTestCase' => 'ArcanistArcanistLinterTestCase',
'ArcanistLiberateWorkflow' => 'ArcanistBaseWorkflow', 'ArcanistLiberateWorkflow' => 'ArcanistBaseWorkflow',
'ArcanistLintConsoleRenderer' => 'ArcanistLintRenderer', 'ArcanistLintConsoleRenderer' => 'ArcanistLintRenderer',
'ArcanistLintJSONRenderer' => 'ArcanistLintRenderer', 'ArcanistLintJSONRenderer' => 'ArcanistLintRenderer',

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@ -0,0 +1,160 @@
<?php
/**
* A linter for LESSCSS files.
*
* This linter uses [[https://github.com/less/less.js | lessc]] to detect
* errors and potential problems in [[http://lesscss.org/ | LESS]] code.
*/
final class ArcanistLesscLinter extends ArcanistExternalLinter {
const LINT_RUNTIME_ERROR = 1;
const LINT_ARGUMENT_ERROR = 2;
const LINT_FILE_ERROR = 3;
const LINT_NAME_ERROR = 4;
const LINT_OPERATION_ERROR = 5;
const LINT_PARSE_ERROR = 6;
const LINT_SYNTAX_ERROR = 7;
public function getLinterName() {
return 'LESSC';
}
public function getLinterConfigurationName() {
return 'lessc';
}
public function getLinterConfigurationOptions() {
return parent::getLinterConfigurationOptions() + array(
'lessc.strict-math' => 'optional bool',
'lessc.strict-units' => 'optional bool',
);
}
public function getLintNameMap() {
return array(
self::LINT_RUNTIME_ERROR => pht('Runtime Error'),
self::LINT_ARGUMENT_ERROR => pht('Argument Error'),
self::LINT_FILE_ERROR => pht('File Error'),
self::LINT_NAME_ERROR => pht('Name Error'),
self::LINT_OPERATION_ERROR => pht('Operation Error'),
self::LINT_PARSE_ERROR => pht('Parse Error'),
self::LINT_SYNTAX_ERROR => pht('Syntax Error'),
);
}
public function getDefaultBinary() {
return 'lessc';
}
public function getCacheVersion() {
list($stdout) = execx('%C --version', $this->getExecutableCommand());
$matches = array();
if (preg_match('/^lessc (?P<version>\d+\.\d+\.\d+)$/', $stdout, $matches)) {
$version = $matches['version'];
} else {
return false;
}
}
public function getInstallInstructions() {
return pht('Install lessc using `npm install -g lessc`.');
}
public function shouldExpectCommandErrors() {
return true;
}
public function supportsReadDataFromStdin() {
// Technically `lessc` can read data from standard input however, when doing
// so, relative imports cannot be resolved. Therefore, this functionality is
// disabled.
return false;
}
public function getReadDataFromStdinFilename() {
return '-';
}
protected function getMandatoryFlags() {
return array(
'--lint',
'--no-color',
'--strict-math='.
($this->getConfig('lessc.strict-math') ? 'on' : 'off'),
'--strict-units='.
($this->getConfig('lessc.strict-units') ? 'on' : 'off'));
}
protected function parseLinterOutput($path, $err, $stdout, $stderr) {
$lines = phutil_split_lines($stderr, false);
$messages = array();
foreach ($lines as $line) {
$matches = null;
$match = preg_match(
'/^(?P<name>\w+): (?P<description>.+) ' .
'in (?P<path>.+|-) ' .
'on line (?P<line>\d+), column (?P<column>\d+):$/',
$line,
$matches);
if ($match) {
switch ($matches['name']) {
case 'RuntimeError':
$code = self::LINT_RUNTIME_ERROR;
break;
case 'ArgumentError':
$code = self::LINT_ARGUMENT_ERROR;
break;
case 'FileError':
$code = self::LINT_FILE_ERROR;
break;
case 'NameError':
$code = self::LINT_NAME_ERROR;
break;
case 'OperationError':
$code = self::LINT_OPERATION_ERROR;
break;
case 'ParseError':
$code = self::LINT_PARSE_ERROR;
break;
case 'SyntaxError':
$code = self::LINT_SYNTAX_ERROR;
break;
default:
throw new RuntimeException(pht(
'Unrecognized lint message code "%s".',
$code));
}
$code = $this->getLintCodeFromLinterConfigurationKey($matches['name']);
$message = new ArcanistLintMessage();
$message->setPath($path);
$message->setLine($matches['line']);
$message->setChar($matches['column']);
$message->setCode($this->getLintMessageFullCode($code));
$message->setSeverity($this->getLintMessageSeverity($code));
$message->setName($this->getLintMessageName($code));
$message->setDescription(ucfirst($matches['description']));
$messages[] = $message;
}
}
if ($err && !$messages) {
return false;
}
return $messages;
}
}

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@ -0,0 +1,12 @@
<?php
final class ArcanistLesscLinterTestCase
extends ArcanistArcanistLinterTestCase {
public function testLesscLinter() {
$this->executeTestsInDirectory(
dirname(__FILE__).'/lessc/',
new ArcanistLesscLinter());
}
}

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@ -0,0 +1,99 @@
#yelow {
#short {
color: #fea;
}
#long {
color: #ffeeaa;
}
#rgba {
color: rgba(255, 238, 170, 0.1);
}
#argb {
color: argb(rgba(255, 238, 170, 0.1));
}
}
#blue {
#short {
color: #00f;
}
#long {
color: #0000ff;
}
#rgba {
color: rgba(0, 0, 255, 0.1);
}
#argb {
color: argb(rgba(0, 0, 255, 0.1));
}
}
#alpha #hsla {
color: hsla(11, 20%, 20%, 0.6);
}
#overflow {
.a { color: (#111111 - #444444); } // #000000
.b { color: (#eee + #fff); } // #ffffff
.c { color: (#aaa * 3); } // #ffffff
.d { color: (#00ee00 + #009900); } // #00ff00
.e { color: rgba(-99.9, 31.4159, 321, 0.42); }
}
#grey {
color: rgb(200, 200, 200);
}
#333333 {
color: rgb(20%, 20%, 20%);
}
#808080 {
color: hsl(50, 0%, 50%);
}
#00ff00 {
color: hsl(120, 100%, 50%);
}
.lightenblue {
color: lighten(blue, 10%);
}
.darkenblue {
color: darken(blue, 10%);
}
.unknowncolors {
color: blue2;
border: 2px solid superred;
}
.transparent {
color: transparent;
background-color: rgba(0, 0, 0, 0);
}
#alpha {
@colorvar: rgba(150, 200, 150, 0.7);
#fromvar {
opacity: alpha(@colorvar);
}
#short {
opacity: alpha(#aaa);
}
#long {
opacity: alpha(#bababa);
}
#rgba {
opacity: alpha(rgba(50, 120, 95, 0.2));
}
#hsl {
opacity: alpha(hsl(120, 100%, 50%));
}
}
#percentage {
color: red(rgb(100%, 0, 0));
border-color: rgba(100%, 0, 0, 50%);
}
~~~~~~~~~~

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@ -0,0 +1,84 @@
/******************\
* *
* Comment Header *
* *
\******************/
/*
Comment
*/
/*
* Comment Test
*
* - cloudhead (http://cloudhead.net)
*
*/
////////////////
@var: "content";
////////////////
/* Colors
* ------
* #EDF8FC (background blue)
* #166C89 (darkest blue)
*
* Text:
* #333 (standard text) // A comment within a comment!
* #1F9EC9 (standard link)
*
*/
/* @group Variables
------------------- */
#comments /* boo *//* boo again*/,
//.commented_out1
//.commented_out2
//.commented_out3
.comments //end of comments1
//end of comments2
{
/**/ // An empty comment
color: red; /* A C-style comment */ /* A C-style comment */
background-color: orange; // A little comment
font-size: 12px;
/* lost comment */ content: @var;
border: 1px solid black;
// padding & margin //
padding: 0; // }{ '"
margin: 2em;
} //
/* commented out
#more-comments {
color: grey;
}
*/
.selector /* .with */, .lots, /* of */ .comments {
color: grey, /* blue */ orange;
-webkit-border-radius: 2px /* webkit only */;
-moz-border-radius: (2px * 4) /* moz only with operation */;
}
.mixin_def_with_colors(@a: white, // in
@b: 1px //put in @b - causes problems! --->
) // the
when (@a = white) {
.test {
color: @b;
}
}
.mixin_def_with_colors();
#last { color: blue }
//
/* *//* { *//* *//* *//* */#div { color:#A33; }/* } */
~~~~~~~~~~

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@ -0,0 +1,130 @@
.comma-delimited {
text-shadow: -1px -1px 1px red, 6px 5px 5px yellow;
-moz-box-shadow: 0pt 0pt 2px rgba(255, 255, 255, 0.4) inset,
0pt 4px 6px rgba(255, 255, 255, 0.4) inset;
-webkit-transform: rotate(-0.0000000001deg);
}
@font-face {
font-family: Headline;
unicode-range: U+??????, U+0???, U+0-7F, U+A5;
}
.other {
-moz-transform: translate(0, 11em) rotate(-90deg);
transform: rotateX(45deg);
}
.item[data-cra_zy-attr1b-ut3=bold] {
font-weight: bold;
}
p:not([class*="lead"]) {
color: black;
}
input[type="text"].class#id[attr=32]:not(1) {
color: white;
}
div#id.class[a=1][b=2].class:not(1) {
color: white;
}
ul.comma > li:not(:only-child)::after {
color: white;
}
ol.comma > li:nth-last-child(2)::after {
color: white;
}
li:nth-child(4n+1),
li:nth-child(-5n),
li:nth-child(-n+2) {
color: white;
}
a[href^="http://"] {
color: black;
}
a[href$="http://"] {
color: black;
}
form[data-disabled] {
color: black;
}
p::before {
color: black;
}
#issue322 {
-webkit-animation: anim2 7s infinite ease-in-out;
}
@-webkit-keyframes frames {
0% { border: 1px }
5.5% { border: 2px }
100% { border: 3px }
}
@keyframes fontbulger1 {
to {
font-size: 15px;
}
from,to {
font-size: 12px;
}
0%,100% {
font-size: 12px;
}
}
.units {
font: 1.2rem/2rem;
font: 8vw/9vw;
font: 10vh/12vh;
font: 12vm/15vm;
font: 12vmin/15vmin;
font: 1.2ch/1.5ch;
}
@supports ( box-shadow: 2px 2px 2px black ) or
( -moz-box-shadow: 2px 2px 2px black ) {
.outline {
box-shadow: 2px 2px 2px black;
-moz-box-shadow: 2px 2px 2px black;
}
}
@-x-document url-prefix(""github.com"") {
h1 {
color: red;
}
}
@viewport {
font-size: 10px;
}
@namespace foo url(http://www.example.com);
foo|h1 { color: blue; }
foo|* { color: yellow; }
|h1 { color: red; }
*|h1 { color: green; }
h1 { color: green; }
.upper-test {
UpperCaseProperties: allowed;
}
@host {
div {
display: block;
}
}
::distributed(input::placeholder) {
color: #b3b3b3;
}
.shadow ^ .dom,
body ^^ .shadow {
display: done;
}
~~~~~~~~~~

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@ -0,0 +1,34 @@
@ugly: fuchsia;
.escape\|random\|char {
color: red;
}
.mixin\!tUp {
font-weight: bold;
}
// class="404"
.\34 04 {
background: red;
strong {
color: @ugly;
.mixin\!tUp;
}
}
.trailingTest\+ {
color: red;
}
/* This hideous test of hideousness checks for the selector "blockquote" with various permutations of hex escapes */
\62\6c\6f \63 \6B \0071 \000075o\74 e {
color: silver;
}
[ng\:cloak],
ng\:form {
display: none;
}
~~~~~~~~~~

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@ -0,0 +1,65 @@
.light when (lightness(@a) > 50%) {
color: green;
}
.dark when (lightness(@a) < 50%) {
color: orange;
}
@a: #ddd;
.see-the {
@a: #444; // this mirrors what mixins do - they evaluate guards at the point of execution
.light();
.dark();
}
.hide-the {
.light();
.dark();
}
.multiple-conditions-1 when (@b = 1), (@c = 2), (@d = 3) {
color: red;
}
.multiple-conditions-2 when (@b = 1), (@c = 2), (@d = 2) {
color: blue;
}
@b: 2;
@c: 3;
@d: 3;
.inheritance when (@b = 2) {
.test {
color: black;
}
&:hover {
color: pink;
}
.hideme when (@b = 1) {
color: green;
}
& when (@b = 1) {
hideme: green;
}
}
.hideme when (@b = 1) {
.test {
color: black;
}
&:hover {
color: pink;
}
.hideme when (@b = 1) {
color: green;
}
}
& when (@b = 1) {
.hideme {
color: red;
}
}
~~~~~~~~~~

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@ -0,0 +1,109 @@
@charset "utf-8";
div { color: black; }
div { width: 99%; }
* {
min-width: 45em;
}
h1, h2 > a > p, h3 {
color: none;
}
div.class {
color: blue;
}
div#id {
color: green;
}
.class#id {
color: purple;
}
.one.two.three {
color: grey;
}
@media print {
* {
font-size: 3em;
}
}
@media screen {
* {
font-size: 10px;
}
}
@font-face {
font-family: 'Garamond Pro';
}
a:hover, a:link {
color: #999;
}
p, p:first-child {
text-transform: none;
}
q:lang(no) {
quotes: none;
}
p + h1 {
font-size: +2.2em;
}
#shorthands {
border: 1px solid #000;
font: 12px/16px Arial;
font: 100%/16px Arial;
margin: 1px 0;
padding: 0 auto;
}
#more-shorthands {
margin: 0;
padding: 1px 0 2px 0;
font: normal small/20px 'Trebuchet MS', Verdana, sans-serif;
font: 0/0 a;
border-radius: 5px / 10px;
}
.misc {
-moz-border-radius: 2px;
display: -moz-inline-stack;
width: .1em;
background-color: #009998;
background: -webkit-gradient(linear, left top, left bottom, from(red), to(blue));
margin: ;
.nested-multiple {
multiple-semi-colons: yes;;;;;;
};
filter: alpha(opacity=100);
width: auto\9;
}
#important {
color: red !important;
width: 100%!important;
height: 20px ! important;
}
.def-font(@name) {
@font-face {
font-family: @name
}
}
.def-font(font-a);
.def-font(font-b);
.æøå {
margin: 0;
}
~~~~~~~~~~

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@ -0,0 +1,104 @@
@ruleset: {
color: black;
background: white;
};
@a: 1px;
.wrap-mixin(@ruleset) {
@a: hidden and if you see this in the output its a bug;
@b: visible;
@d: magic-frame; // same behaviour as mixin calls - falls back to this frame
.wrap-selector {
@c: visible;
@ruleset();
visible-one: @b;
visible-two: @c;
}
};
.wrap-mixin({
color: black;
one: @a;
@b: hidden and if you see this in the output its a bug;
@c: hidden and if you see this in the output its a bug;
four: @d;
});
.wrap-mixin(@ruleset: {
color: red;
});
.wrap-mixin(@ruleset);
.desktop-and-old-ie(@rules) {
@media screen and (min-width: 1200) { @rules(); }
html.lt-ie9 & { @rules(); }
}
header {
background: blue;
.desktop-and-old-ie({
background: red;
});
}
.wrap-mixin-calls-wrap(@ruleset) {
.wrap-mixin(@ruleset);
};
.wrap-mixin({
test: extra-wrap;
.wrap-mixin-calls-wrap({
test: wrapped-twice;
});
});
.wrap-mixin({
test-func: unit(90px);
test-arithmetic: unit((9+9), px);
});
// without mixins
@ruleset-2: {
b: 1;
};
.without-mixins {
@ruleset-2();
}
@my-ruleset: {
.my-selector {
@media tv {
background-color: black;
}
}
};
@media (orientation:portrait) {
@my-ruleset();
.wrap-media-mixin({
@media tv {
.triple-wrapped-mq {
triple: true;
}
}
});
}
.wrap-media-mixin(@ruleset) {
@media widescreen {
@media print {
@ruleset();
}
@ruleset();
}
@ruleset();
}
// unlocking mixins
@my-mixins: {
.mixin() {
test: test;
}
};
@my-mixins();
.a {
.mixin();
}
~~~~~~~~~~

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@ -0,0 +1 @@
~~~~~~~~~~

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@ -0,0 +1,8 @@
.a {
error: (1px + 3em);
}
~~~~~~~~~~
error:2:3
~~~~~~~~~~
~~~~~~~~~~
{"config":{"lessc.strict-units":true}}

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@ -0,0 +1,8 @@
.a {
error: ((1px * 2px) + (3em * 3px));
}
~~~~~~~~~~
error:2:3
~~~~~~~~~~
~~~~~~~~~~
{"config":{"lessc.strict-units":true}}

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@ -0,0 +1,6 @@
@keyframes @name {
50% {width: 20px;}
}
~~~~~~~~~~
error:2:12

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@ -0,0 +1,3 @@
@@demo: "hi";
~~~~~~~~~~
error:1:1

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@ -0,0 +1,5 @@
.test {
color: color("NOT A COLOR");
}
~~~~~~~~~~
error:2:10

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@ -0,0 +1,3 @@
#gaga /* Comment */ span { color: red }
~~~~~~~~~~
error:1:21

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@ -0,0 +1,6 @@
selector when (default()) {
color: red;
}
~~~~~~~~~~
error:2:16

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@ -0,0 +1,8 @@
@a: {
b: 1;
};
.a {
a: @a;
}
~~~~~~~~~~
error:5:3

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@ -0,0 +1,8 @@
@a: {
b: 1;
};
.a {
a: @a();
}
~~~~~~~~~~
error:5:3

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@ -0,0 +1,6 @@
@a: {
b: 1;
};
@a();
~~~~~~~~~~
error:2:3

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@ -0,0 +1,7 @@
.mixin-definition(@a: {
b: 1;
}) {
@a();
}
~~~~~~~~~~
error:1:18

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@ -0,0 +1,6 @@
.mixin-definition(@b) {
@a();
}
.mixin-definition({color: red;});
~~~~~~~~~~
error:4:1

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@ -0,0 +1,7 @@
.a {
b: {
color: red;
};
}
~~~~~~~~~~
error:2:3

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@ -0,0 +1,8 @@
.a {
error: (1px / 3em);
}
~~~~~~~~~~
error:2:3
~~~~~~~~~~
~~~~~~~~~~
{"config":{"lessc.strict-units":true}}

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@ -0,0 +1,5 @@
:extend(.a all) {
property: red;
}
~~~~~~~~~~
error:1:17

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@ -0,0 +1,5 @@
.a:extend(.b all).c {
property: red;
}
~~~~~~~~~~
error:1:21

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@ -0,0 +1,8 @@
.a {
color: green;
// tests line number for import reference is correct
}
@import "file-does-not-exist.less";
~~~~~~~~~~
error:6:1

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@ -0,0 +1,3 @@
@import "this-statement-is-invalid.less"
~~~~~~~~~~
error:1:1

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@ -0,0 +1,5 @@
.scope {
var: `this.foo.toJS()`;
}
~~~~~~~~~~
error:2:27

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@ -0,0 +1,5 @@
.scope {
@a: `@{b}`;
}
~~~~~~~~~~
error:2:15

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@ -0,0 +1,8 @@
.mixin(@a : 4, @b : 3, @c: 2) {
will: fail;
}
.mixin-test {
.mixin(@a: 5; @b: 6, @c: 7);
}
~~~~~~~~~~
error:5:30

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@ -0,0 +1,8 @@
.mixin(@a : 4, @b : 3, @c: 2) {
will: fail;
}
.mixin-test {
.mixin(@a: 5, @b: 6; @c: 7);
}
~~~~~~~~~~
error:5:26

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@ -0,0 +1,13 @@
.error-is-further-on() {
}
.pad-here-to-reproduce-error-in() {
}
.the-import-subfolder-test() {
}
.mixin-not-defined();
~~~~~~~~~~
error:11:1

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@ -0,0 +1,8 @@
@saxofon:trumpete;
.mixin(saxofon) {
}
.mixin(@saxofon);
~~~~~~~~~~
error:6:1

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@ -0,0 +1,8 @@
@saxofon:trumpete;
.mixin(@a, @b) {
}
.mixin(@a: @saxofon);
~~~~~~~~~~
error:6:1

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@ -0,0 +1,11 @@
.something {
& {
.a {value: a}
}
& {
.b {.a} // was Err. before 1.6.2
}
}
~~~~~~~~~~
error:7:13

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@ -0,0 +1,11 @@
guard-default-func-conflict {
.m(@x, 1) {}
.m(@x, 2) when (default()) {}
.m(@x, 2) when (default()) {}
.m(1, 1);
.m(1, 2);
}
~~~~~~~~~~
error:8:5

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@ -0,0 +1,11 @@
guard-default-func-conflict {
.m(1) {}
.m(@x) when not(default()) {}
.m(@x) when (@x = 3) and (default()) {}
.m(2);
.m(3);
}
~~~~~~~~~~
error:8:5

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@ -0,0 +1,11 @@
guard-default-func-conflict {
.m(1) {}
.m(@x) when not(default()) {}
.m(@x) when not(default()) {}
.m(1);
.m(2);
}
~~~~~~~~~~
error:8:5

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@ -0,0 +1,6 @@
@ie8: true;
.a when (@ie8 = true),
.b {
}
~~~~~~~~~~
error:3:1

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@ -0,0 +1,6 @@
@ie8: true;
.a,
.b when (@ie8 = true) {
}
~~~~~~~~~~
error:3:23

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@ -0,0 +1,12 @@
/* Test */
#blah {
// blah
}
.a {
error: (1px * 1em);
}
~~~~~~~~~~
error:6:3
~~~~~~~~~~
~~~~~~~~~~
{"config":{"lessc.strict-units":true}}

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@ -0,0 +1,5 @@
.a {
something: (12 (13 + 5 -23) + 5);
}
~~~~~~~~~~
error:2:18

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@ -0,0 +1,5 @@
.a {
something: (12 * (13 + 5 -23));
}
~~~~~~~~~~
error:2:28

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@ -0,0 +1,5 @@
.a {
something: (12 + (13 + 10 -23));
}
~~~~~~~~~~
error:2:29

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@ -0,0 +1,6 @@
body {
background-color: #fff;
}
}
~~~~~~~~~~
error:4:1

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@ -0,0 +1,7 @@
@media (extra: bracket)) {
body {
background-color: #fff;
}
}
~~~~~~~~~~
error:1:24

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@ -0,0 +1,4 @@
body {
background-color: #fff;
~~~~~~~~~~
error:1:6

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@ -0,0 +1,7 @@
@media (missing: bracket {
body {
background-color: #fff;
}
}
~~~~~~~~~~
error:1:8

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@ -0,0 +1,5 @@
.a {
error: calc(1 %);
}
~~~~~~~~~~
error:2:3

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@ -0,0 +1,5 @@
a {
* : 1;
}
~~~~~~~~~~
error:2:5

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@ -0,0 +1,5 @@
.test {
display/*/: block; /*sorry for IE5*/
}
~~~~~~~~~~
error:2:3

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@ -0,0 +1,6 @@
.a() {
prop:1;
}
.a();
~~~~~~~~~~
error:2:3

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@ -0,0 +1,6 @@
prop:1;
.a {
prop:1;
}
~~~~~~~~~~
error:1:1

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@ -0,0 +1,3 @@
a {outline-@{color}: green}
~~~~~~~~~~
error:1:12

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@ -0,0 +1,3 @@
@bodyColor: darken(@bodyColor, 30%);
~~~~~~~~~~
error:1:20

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@ -0,0 +1,5 @@
.a {
a: svg-gradient(horizontal, black, white);
}
~~~~~~~~~~
error:2:6

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@ -0,0 +1,5 @@
.a {
a: svg-gradient(to bottom, black, orange, 45%, white);
}
~~~~~~~~~~
error:2:6

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@ -0,0 +1,5 @@
.a {
a: svg-gradient(black, orange);
}
~~~~~~~~~~
error:2:6

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@ -0,0 +1,8 @@
.a {
font-size: unit(80/16,rem);
}
~~~~~~~~~~
error:2:14
~~~~~~~~~~
~~~~~~~~~~
{"config":{"lessc.strict-math":true}}

View file

@ -0,0 +1,92 @@
//very simple chaining
.a {
color: black;
}
.b:extend(.a) {}
.c:extend(.b) {}
//very simple chaining, ordering not important
.d:extend(.e) {}
.e:extend(.f) {}
.f {
color: black;
}
//extend with all
.g.h {
color: black;
}
.i.j:extend(.g all) {
color: white;
}
.k:extend(.i all) {}
//extend multi-chaining
.l {
color: black;
}
.m:extend(.l){}
.n:extend(.m){}
.o:extend(.n){}
.p:extend(.o){}
.q:extend(.p){}
.r:extend(.q){}
.s:extend(.r){}
.t:extend(.s){}
// self referencing is ignored
.u {color: black;}
.v.u.v:extend(.u all){}
// circular reference because the new extend product will match the existing extend
.w:extend(.w) {color: black;}
.v.w.v:extend(.w all){}
// classic circular references
.x:extend(.z) {
color: x;
}
.y:extend(.x) {
color: y;
}
.z:extend(.y) {
color: z;
}
//very simple chaining, but with the extend inside the ruleset
.va {
color: black;
}
.vb {
&:extend(.va);
color: white;
}
.vc {
&:extend(.vb);
}
// media queries - dont extend outside, do extend inside
@media tv {
.ma:extend(.a,.b,.c,.d,.e,.f,.g,.h,.i,.j,.k,.l,.m,.n,.o,.p,.q,.r,.s,.t,.u,.v,.w,.x,.y,.z,.md) {
color: black;
}
.md {
color: white;
}
@media plasma {
.me, .mf {
&:extend(.mb,.md);
background: red;
}
}
}
.mb:extend(.ma) {};
.mc:extend(.mb) {};
~~~~~~~~~~

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@ -0,0 +1,20 @@
.clearfix {
*zoom: 1;
&:after {
content: '';
display: block;
clear: both;
height: 0;
}
}
.foo {
&:extend(.clearfix all);
color: red;
}
.bar {
&:extend(.clearfix all);
color: blue;
}
~~~~~~~~~~

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@ -0,0 +1,47 @@
.replace.replace,
.c.replace + .replace {
.replace,
.c {
prop: copy-paste-replace;
}
}
.rep_ace:extend(.replace.replace .replace) {}
.a .b .c {
prop: not_effected;
}
.a {
prop: is_effected;
.b {
prop: not_effected;
}
.b.c {
prop: not_effected;
}
}
.c, .a {
.b, .a {
.a, .c {
prop: not_effected;
}
}
}
.effected {
&:extend(.a);
&:extend(.b);
&:extend(.c);
}
.e {
&& {
prop: extend-double;
&:hover {
hover: not-extended;
}
}
}
.dbl:extend(.e.e) {}
~~~~~~~~~~

View file

@ -0,0 +1,25 @@
.ext1 .ext2 {
background: black;
}
@media tv {
.ext1 .ext3 {
color: white;
}
.tv-lowres :extend(.ext1 all) {
background: blue;
}
@media hires {
.ext1 .ext4 {
color: green;
}
.tv-hires :extend(.ext1 all) {
background: red;
}
}
}
.all:extend(.ext1 all) {
}
~~~~~~~~~~

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@ -0,0 +1,66 @@
.sidebar {
width: 300px;
background: red;
.box {
background: #FFF;
border: 1px solid #000;
margin: 10px 0;
}
}
.sidebar2 {
&:extend(.sidebar all);
background: blue;
}
.type1 {
.sidebar3 {
&:extend(.sidebar all);
background: green;
}
}
.type2 {
&.sidebar4 {
&:extend(.sidebar all);
background: red;
}
}
.button {
color: black;
&:hover {
color: white;
}
}
.submit {
&:extend(.button);
&:hover:extend(.button:hover) {}
}
.nomatch {
&:hover:extend(.button :hover) {}
}
.button2 {
:hover {
nested: white;
}
}
.button2 :hover {
notnested: black;
}
.nomatch :extend(.button2:hover) {}
.amp-test-a,
.amp-test-b {
.amp-test-c &.amp-test-d&.amp-test-e {
.amp-test-f&+&.amp-test-g:extend(.amp-test-h) {}
}
}
.amp-test-h {
test: extended by masses of selectors;
}
~~~~~~~~~~

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@ -0,0 +1,100 @@
.error {
border: 1px #f00;
background: #fdd;
}
.error.intrusion {
font-size: 1.3em;
font-weight: bold;
}
.intrusion .error {
display: none;
}
.badError:extend(.error all) {
border-width: 3px;
}
.foo .bar, .foo .baz {
display: none;
}
.ext1 .ext2
:extend(.foo all) {
}
.ext3:extend(.foo all),
.ext4:extend(.foo all) {
}
div.ext5,
.ext6 > .ext5 {
width: 100px;
}
.should-not-exist-in-output,
.ext7:extend(.ext5 all) {
}
.ext {
test: 1;
}
// same as
// .a .c:extend(.ext all)
// .b .c:extend(.ext all)
// .a .c .d
// .b .c .d
.a, .b {
test: 2;
.c:extend(.ext all) {
test: 3;
.d {
test: 4;
}
}
}
.replace.replace,
.c.replace + .replace {
.replace,
.c {
prop: copy-paste-replace;
}
}
.rep_ace:extend(.replace all) {}
.attributes {
[data="test"] {
extend: attributes;
}
.attribute-test {
&:extend([data="test"] all);
}
[data] {
extend: attributes2;
}
.attribute-test2 {
&:extend([data] all); //you could argue it should match [data="test"]... not for now though...
}
@attr-data: "test3";
[data=@{attr-data}] {
extend: attributes2;
}
.attribute-test {
&:extend([data="test3"] all);
}
}
.header {
.header-nav {
background: red;
&:before {
background: blue;
}
}
}
.footer {
.footer-nav {
&:extend( .header .header-nav all );
}
}
~~~~~~~~~~

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@ -0,0 +1,82 @@
.error {
border: 1px #f00;
background: #fdd;
}
.error.intrusion {
font-size: 1.3em;
font-weight: bold;
}
.intrusion .error {
display: none;
}
.badError {
&:extend(.error all);
border-width: 3px;
}
.foo .bar, .foo .baz {
display: none;
}
.ext1 .ext2 {
&:extend(.foo all);
}
.ext3,
.ext4 {
&:extend(.foo all);
&:extend(.bar all);
}
div.ext5,
.ext6 > .ext5 {
width: 100px;
}
.ext7 {
&:extend(.ext5 all);
}
.ext8.ext9 {
result: add-foo;
}
.ext8 .ext9,
.ext8 + .ext9,
.ext8 > .ext9 {
result: bar-matched;
}
.ext8.nomatch {
result: none;
}
.ext8 {
.ext9 {
result: match-nested-bar;
}
}
.ext8 {
&.ext9 {
result: match-nested-foo;
}
}
.fuu:extend(.ext8.ext9 all) {}
.buu:extend(.ext8 .ext9 all) {}
.zap:extend(.ext8 + .ext9 all) {}
.zoo:extend(.ext8 > .ext9 all) {}
.aa {
color: black;
.dd {
background: red;
}
}
.bb {
background: red;
.bb {
color: black;
}
}
.cc:extend(.aa,.bb) {}
.ee:extend(.dd all,.bb) {}
.ff:extend(.dd,.bb all) {}
~~~~~~~~~~

View file

@ -0,0 +1,134 @@
// simple array/list:
.multiunit {
@v: abc "abc" 1 1px 1% #123;
length: length(@v);
extract: extract(@v, 1) extract(@v, 2) extract(@v, 3) extract(@v, 4) extract(@v, 5) extract(@v, 6);
}
.incorrect-index {
@v1: a b c;
@v2: a, b, c;
v1: extract(@v1, 5);
v2: extract(@v2, -2);
}
.scalar {
@var: variable;
var-value: extract(@var, 1);
var-length: length(@var);
ill-index: extract(@var, 2);
name-value: extract(name, 1);
string-value: extract("string", 1);
number-value: extract(12345678, 1);
color-value: extract(blue, 1);
rgba-value: extract(rgba(80, 160, 240, 0.67), 1);
empty-value: extract(~'', 1);
name-length: length(name);
string-length: length("string");
number-length: length(12345678);
color-length: length(blue);
rgba-length: length(rgba(80, 160, 240, 0.67));
empty-length: length(~'');
}
.mixin-arguments {
.mixin-args(a b c d);
.mixin-args(a, b, c, d);
.mixin-args(1; 2; 3; 4);
}
.mixin-args(@value) {
&-1 {
length: length(@value);
extract: extract(@value, 3) ~"|" extract(@value, 2) ~"|" extract(@value, 1);
}
}
.mixin-args(...) {
&-2 {
length: length(@arguments);
extract: extract(@arguments, 3) ~"|" extract(@arguments, 2) ~"|" extract(@arguments, 1);
}
}
.mixin-args(@values...) {
&-3 {
length: length(@values);
extract: extract(@values, 3) ~"|" extract(@values, 2) ~"|" extract(@values, 1);
}
}
.mixin-args(@head, @tail...) {
&-4 {
length: length(@tail);
extract: extract(@tail, 2) ~"|" extract(@tail, 1);
}
}
// "multidimensional" array/list
.md-space-comma {
@v: a b c, 1 2 3, "x" "y" "z";
length-1: length(@v);
extract-1: extract(@v, 2);
length-2: length(extract(@v, 2));
extract-2: extract(extract(@v, 2), 2);
&-as-args {.mixin-args(a b c, 1 2 3, "x" "y" "z")}
}
.md-cat-space-comma {
@a: a b c;
@b: 1 2 3;
@c: "x" "y" "z";
@v: @a, @b, @c;
length-1: length(@v);
extract-1: extract(@v, 2);
length-2: length(extract(@v, 2));
extract-2: extract(extract(@v, 2), 2);
&-as-args {.mixin-args(@a, @b, @c)}
}
.md-cat-comma-space {
@a: a, b, c;
@b: 1, 2, 3;
@c: "x", "y", "z";
@v: @a @b @c;
length-1: length(@v);
extract-1: extract(@v, 2);
length-2: length(extract(@v, 2));
extract-2: extract(extract(@v, 2), 2);
&-as-args {.mixin-args(@a @b @c)}
}
.md-3D {
@a: a b c d, 1 2 3 4;
@b: 5 6 7 8, e f g h;
.3D(@a, @b);
.3D(...) {
@v1: @arguments;
length-1: length(@v1);
extract-1: extract(@v1, 1);
@v2: extract(@v1, 2);
length-2: length(@v2);
extract-2: extract(@v2, 1);
@v3: extract(@v2, 1);
length-3: length(@v3);
extract-3: extract(@v3, 3);
@v4: extract(@v3, 4);
length-4: length(@v4);
extract-4: extract(@v4, 1);
}
}
~~~~~~~~~~

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@ -0,0 +1,169 @@
#functions {
@var: 10;
@colors: #000, #fff;
color: _color("evil red"); // #660000
width: increment(15);
height: undefined("self");
border-width: add(2, 3);
variable: increment(@var);
background: linear-gradient(@colors);
}
#built-in {
@r: 32;
escaped: e("-Some::weird(#thing, y)");
lighten: lighten(#ff0000, 40%);
darken: darken(#ff0000, 40%);
saturate: saturate(#29332f, 20%);
desaturate: desaturate(#203c31, 20%);
greyscale: greyscale(#203c31);
hsl-clamp: hsl(380, 150%, 150%);
spin-p: spin(hsl(340, 50%, 50%), 40);
spin-n: spin(hsl(30, 50%, 50%), -40);
luma-white: luma(#fff);
luma-black: luma(#000);
luma-black-alpha: luma(rgba(0,0,0,0.5));
luma-red: luma(#ff0000);
luma-green: luma(#00ff00);
luma-blue: luma(#0000ff);
luma-yellow: luma(#ffff00);
luma-cyan: luma(#00ffff);
luma-white-alpha: luma(rgba(255,255,255,0.5));
contrast-filter: contrast(30%);
saturate-filter: saturate(5%);
contrast-white: contrast(#fff);
contrast-black: contrast(#000);
contrast-red: contrast(#ff0000);
contrast-green: contrast(#00ff00);
contrast-blue: contrast(#0000ff);
contrast-yellow: contrast(#ffff00);
contrast-cyan: contrast(#00ffff);
contrast-light: contrast(#fff, #111111, #eeeeee);
contrast-dark: contrast(#000, #111111, #eeeeee);
contrast-wrongorder: contrast(#fff, #eeeeee, #111111, 0.5);
contrast-light-thresh: contrast(#fff, #111111, #eeeeee, 0.5);
contrast-dark-thresh: contrast(#000, #111111, #eeeeee, 0.5);
contrast-high-thresh: contrast(#555, #111111, #eeeeee, 0.6);
contrast-low-thresh: contrast(#555, #111111, #eeeeee, 0.1);
contrast-light-thresh-per: contrast(#fff, #111111, #eeeeee, 50%);
contrast-dark-thresh-per: contrast(#000, #111111, #eeeeee, 50%);
contrast-high-thresh-per: contrast(#555, #111111, #eeeeee, 60%);
contrast-low-thresh-per: contrast(#555, #111111, #eeeeee, 10%);
replace: replace("Hello, Mars.", "Mars\.", "World!");
replace-captured: replace("This is a string.", "(string)\.$", "new $1.");
replace-with-flags: replace("One + one = 4", "one", "2", "gi");
replace-single-quoted: replace('foo-1', "1", "2");
replace-escaped-string: replace(~"bar-1", "1", "2");
replace-keyword: replace(baz-1, "1", "2");
format: %("rgb(%d, %d, %d)", @r, 128, 64);
format-string: %("hello %s", "world");
format-multiple: %("hello %s %d", "earth", 2);
format-url-encode: %("red is %A", #ff0000);
format-single-quoted: %('hello %s', "single world");
format-escaped-string: %(~"hello %s", "escaped world");
eformat: e(%("rgb(%d, %d, %d)", @r, 128, 64));
unitless: unit(12px);
unit: unit((13px + 1px), em);
unitpercentage: unit(100, %);
get-unit: get-unit(10px);
get-unit-empty: get-unit(10);
hue: hue(hsl(98, 12%, 95%));
saturation: saturation(hsl(98, 12%, 95%));
lightness: lightness(hsl(98, 12%, 95%));
hsvhue: hsvhue(hsv(98, 12%, 95%));
hsvsaturation: hsvsaturation(hsv(98, 12%, 95%));
hsvvalue: hsvvalue(hsv(98, 12%, 95%));
red: red(#f00);
green: green(#0f0);
blue: blue(#00f);
rounded: round((@r/3));
rounded-two: round((@r/3), 2);
roundedpx: round((10px / 3));
roundedpx-three: round((10px / 3), 3);
rounded-percentage: round(10.2%);
ceil: ceil(10.1px);
floor: floor(12.9px);
sqrt: sqrt(25px);
pi: pi();
mod: mod(13m, 11cm); // could take into account units, doesn't at the moment
abs: abs(-4%);
tan: tan(42deg);
sin: sin(10deg);
cos: cos(12);
atan: atan(tan(0.1rad));
atan: convert(acos(cos(34deg)), deg);
atan: convert(acos(cos(50grad)), deg);
pow: pow(8px, 2);
pow: pow(4, 3);
pow: pow(3, 3em);
min: min(0);
min: min(6, 5);
min: min(1pt, 3pt);
min: min(1cm, 3mm);
max: max(1, 3);
max: max(3em, 1em, 2em, 5em);
percentage: percentage((10px / 50));
color: color("#ff0011");
tint: tint(#777777, 13);
tint-full: tint(#777777, 100);
tint-percent: tint(#777777, 13%);
tint-negative: tint(#777777, -13%);
shade: shade(#777777, 13);
shade-full: shade(#777777, 100);
shade-percent: shade(#777777, 13%);
shade-negative: shade(#777777, -13%);
fade-out: fadeOut(red, 5%); // support fadeOut and fadeout
fade-in: fadein(fadeout(red, 10%), 5%);
hsv: hsv(5, 50%, 30%);
hsva: hsva(3, 50%, 30%, 0.2);
mix: mix(#ff0000, #ffff00, 80);
mix-0: mix(#ff0000, #ffff00, 0);
mix-100: mix(#ff0000, #ffff00, 100);
mix-weightless: mix(#ff0000, #ffff00);
mixt: mix(#ff0000, transparent);
.is-a {
color: iscolor(#ddd);
color1: iscolor(red);
color2: iscolor(rgb(0, 0, 0));
color3: iscolor(transparent);
keyword: iskeyword(hello);
number: isnumber(32);
string: isstring("hello");
pixel: ispixel(32px);
percent: ispercentage(32%);
em: isem(32em);
cat: isunit(32cat, cat);
}
}
#alpha {
alpha: darken(hsla(25, 50%, 50%, 0.6), 10%);
alpha2: alpha(rgba(3, 4, 5, 0.5));
alpha3: alpha(transparent);
}
#blendmodes {
multiply: multiply(#f60000, #f60000);
screen: screen(#f60000, #0000f6);
overlay: overlay(#f60000, #0000f6);
softlight: softlight(#f60000, #ffffff);
hardlight: hardlight(#f60000, #0000f6);
difference: difference(#f60000, #0000f6);
exclusion: exclusion(#f60000, #0000f6);
average: average(#f60000, #0000f6);
negation: negation(#f60000, #313131);
}
#extract-and-length {
@anon: A B C 1 2 3;
extract: extract(@anon, 6) extract(@anon, 5) extract(@anon, 4) extract(@anon, 3) extract(@anon, 2) extract(@anon, 1);
length: length(@anon);
}
~~~~~~~~~~

View file

@ -0,0 +1,16 @@
@fat: 0;
@cloudhead: "#000000";
.nav {
filter: progid:DXImageTransform.Microsoft.Alpha(opacity = 20);
filter: progid:DXImageTransform.Microsoft.Alpha(opacity=@fat);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr="#333333", endColorstr=@cloudhead, GradientType=@fat);
}
.evalTest(@arg) {
filter: progid:DXImageTransform.Microsoft.Alpha(opacity=@arg);
}
.evalTest1 {
.evalTest(30);
.evalTest(5);
}
~~~~~~~~~~

View file

@ -0,0 +1,30 @@
.eval {
js: `42`;
js: `1 + 1`;
js: `"hello world"`;
js: `[1, 2, 3]`;
title: `typeof process.title`;
ternary: `(1 + 1 == 2 ? true : false)`;
multiline: `(function(){var x = 1 + 1;
return x})()`;
}
.scope {
@foo: 42;
var: `parseInt(this.foo.toJS())`;
escaped: ~`2 + 5 + 'px'`;
}
.vars {
@var: `4 + 4`;
width: @var;
}
.escape-interpol {
@world: "world";
width: ~`"hello" + " " + @{world}`;
}
.arrays {
@ary: 1, 2, 3;
@ary2: 1 2 3;
ary: `@{ary}.join(', ')`;
ary1: `@{ary2}.join(', ')`;
}
~~~~~~~~~~

View file

@ -0,0 +1,7 @@
@var: @a;
@a: 100%;
.lazy-eval {
width: @var;
}
~~~~~~~~~~

View file

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// For now, variables can't be declared inside @media blocks.
@var: 42;
@media print {
.class {
color: blue;
.sub {
width: @var;
}
}
.top, header > h1 {
color: (#222 * 2);
}
}
@media screen {
@base: 8;
body { max-width: (@base * 60); }
}
@ratio_large: 16;
@ratio_small: 9;
@media all and (device-aspect-ratio: @ratio_large / @ratio_small) {
body { max-width: 800px; }
}
@media all and (orientation:portrait) {
aside { float: none; }
}
@media handheld and (min-width: @var), screen and (min-width: 20em) {
body {
max-width: 480px;
}
}
body {
@media print {
padding: 20px;
header {
background-color: red;
}
@media (orientation:landscape) {
margin-left: 20px;
}
}
}
@media screen {
.sidebar {
width: 300px;
@media (orientation: landscape) {
width: 500px;
}
}
}
@media a {
.first {
@media b {
.second {
.third {
width: 300px;
@media c {
width: 500px;
}
}
.fourth {
width: 3;
}
}
}
}
}
body {
@media a, b and c {
width: 95%;
@media x, y {
width: 100%;
}
}
}
.mediaMixin(@fallback: 200px) {
background: black;
@media handheld {
background: white;
@media (max-width: @fallback) {
background: red;
}
}
}
.a {
.mediaMixin(100px);
}
.b {
.mediaMixin();
}
@smartphone: ~"only screen and (max-width: 200px)";
@media @smartphone {
body {
width: 480px;
}
}
@media print {
@page :left {
margin: 0.5cm;
}
@page :right {
margin: 0.5cm;
}
@page Test:first {
margin: 1cm;
}
@page :first {
size: 8.5in 11in;
@top-left {
margin: 1cm;
}
@top-left-corner {
margin: 1cm;
}
@top-center {
margin: 1cm;
}
@top-right {
margin: 1cm;
}
@top-right-corner {
margin: 1cm;
}
@bottom-left {
margin: 1cm;
}
@bottom-left-corner {
margin: 1cm;
}
@bottom-center {
margin: 1cm;
}
@bottom-right {
margin: 1cm;
}
@bottom-right-corner {
margin: 1cm;
}
@left-top {
margin: 1cm;
}
@left-middle {
margin: 1cm;
}
@left-bottom {
margin: 1cm;
}
@right-top {
margin: 1cm;
}
@right-middle {
content: "Page " counter(page);
}
@right-bottom {
margin: 1cm;
}
}
}
@media (-webkit-min-device-pixel-ratio: 2), (min--moz-device-pixel-ratio: 2), (-o-min-device-pixel-ratio: 2/1), (min-resolution: 2dppx), (min-resolution: 128dpcm) {
.b {
background: red;
}
}
.bg() {
background: red;
@media (max-width: 500px) {
background: green;
}
}
body {
.bg();
}
@bpMedium: 1000px;
@media (max-width: @bpMedium) {
body {
.bg();
background: blue;
}
}
@media (max-width: 1200px) {
/* a comment */
@media (max-width: 900px) {
body { font-size: 11px; }
}
}
.nav-justified {
@media (min-width: 480px) {
> li {
display: table-cell;
}
}
}
.menu
{
@media (min-width: 768px) {
.nav-justified();
}
}
@all: ~"all";
@tv: ~"tv";
@media @all and @tv {
.all-and-tv-variables {
var: all-and-tv;
}
}
~~~~~~~~~~

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.first-transform() {
transform+: rotate(90deg), skew(30deg);
}
.second-transform() {
transform+: scale(2,4);
}
.third-transform() {
transform: scaleX(45deg);
}
.fourth-transform() {
transform+: scaleX(45deg);
}
.fifth-transform() {
transform+: scale(2,4) !important;
}
.first-background() {
background+: url(data://img1.png);
}
.second-background() {
background+: url(data://img2.png);
}
.test1 {
// Can merge values
.first-transform();
.second-transform();
}
.test2 {
// Wont merge values without +: merge directive, for backwards compatibility with css
.first-transform();
.third-transform();
}
.test3 {
// Wont merge values from two sources with different properties
.fourth-transform();
.first-background();
}
.test4 {
// Wont merge values from sources that merked as !important, for backwards compatibility with css
.first-transform();
.fifth-transform();
}
.test5 {
// Wont merge values from mixins that merked as !important, for backwards compatibility with css
.first-transform();
.second-transform() !important;
}
.test6 {
// Ignores !merge if no peers found
.second-transform();
}
.test-interleaved {
transform+: t1;
background+: b1;
transform+: t2;
background+: b2, b3;
transform+: t3;
}
~~~~~~~~~~

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@ -0,0 +1,216 @@
.mixin (@a: 1px, @b: 50%) {
width: (@a * 5);
height: (@b - 1%);
}
.mixina (@style, @width, @color: black) {
border: @width @style @color;
}
.mixiny
(@a: 0, @b: 0) {
margin: @a;
padding: @b;
}
.hidden() {
color: transparent; // asd
}
#hidden {
.hidden;
}
#hidden1 {
.hidden();
}
.two-args {
color: blue;
.mixin(2px, 100%);
.mixina(dotted, 2px);
}
.one-arg {
.mixin(3px);
}
.no-parens {
.mixin;
}
.no-args {
.mixin();
}
.var-args {
@var: 9;
.mixin(@var, (@var * 2));
}
.multi-mix {
.mixin(2px, 30%);
.mixiny(4, 5);
}
.maxa(@arg1: 10, @arg2: #f00) {
padding: (@arg1 * 2px);
color: @arg2;
}
body {
.maxa(15);
}
@glob: 5;
.global-mixin(@a:2) {
width: (@glob + @a);
}
.scope-mix {
.global-mixin(3);
}
.nested-ruleset (@width: 200px) {
width: @width;
.column { margin: @width; }
}
.content {
.nested-ruleset(600px);
}
//
.same-var-name2(@radius) {
radius: @radius;
}
.same-var-name(@radius) {
.same-var-name2(@radius);
}
#same-var-name {
.same-var-name(5px);
}
//
.var-inside () {
@var: 10px;
width: @var;
}
#var-inside { .var-inside; }
.mixin-arguments (@width: 0px, ...) {
border: @arguments;
width: @width;
}
.arguments {
.mixin-arguments(1px, solid, black);
}
.arguments2 {
.mixin-arguments();
}
.arguments3 {
.mixin-arguments;
}
.mixin-arguments2 (@width, @rest...) {
border: @arguments;
rest: @rest;
width: @width;
}
.arguments4 {
.mixin-arguments2(0, 1, 2, 3, 4);
}
// Edge cases
.edge-case {
.mixin-arguments("{");
}
// Division vs. Literal Slash
.border-radius(@r: 2px/5px) {
border-radius: @r;
}
.slash-vs-math {
.border-radius();
.border-radius(5px/10px);
.border-radius((3px * 2));
}
// semi-colon vs comma for delimiting
.mixin-takes-one(@a) {
one: @a;
}
.mixin-takes-two(@a; @b) {
one: @a;
two: @b;
}
.comma-vs-semi-colon {
.mixin-takes-two(@a : a; @b : b, c);
.mixin-takes-two(@a : d, e; @b : f);
.mixin-takes-one(@a: g);
.mixin-takes-one(@a : h;);
.mixin-takes-one(i);
.mixin-takes-one(j;);
.mixin-takes-two(k, l);
.mixin-takes-one(m, n;);
.mixin-takes-two(o, p; q);
.mixin-takes-two(r, s; t;);
}
.mixin-conflict(@a:defA, @b:defB, @c:defC) {
three: @a, @b, @c;
}
.mixin-conflict(@a:defA, @b:defB, @c:defC, @d:defD) {
four: @a, @b, @c, @d;
}
#named-conflict {
.mixin-conflict(11, 12, 13, @a:a);
.mixin-conflict(@a:a, 21, 22, 23);
}
@a: 3px;
.mixin-default-arg(@a: 1px, @b: @a, @c: @b) {
defaults: 1px 1px 1px;
defaults: 2px 2px 2px;
}
.test-mixin-default-arg {
.mixin-default-arg();
.mixin-default-arg(2px);
}
.mixin-comma-default1(@color; @padding; @margin: 2, 2, 2, 2) {
margin: @margin;
}
.selector {
.mixin-comma-default1(#33acfe; 4);
}
.mixin-comma-default2(@margin: 2, 2, 2, 2;) {
margin: @margin;
}
.selector2 {
.mixin-comma-default2();
}
.mixin-comma-default3(@margin: 2, 2, 2, 2) {
margin: @margin;
}
.selector3 {
.mixin-comma-default3(4,2,2,2);
}
.test-calling-one-arg-mixin(@a) {
}
.test-calling-one-arg-mixin(@a, @b, @rest...) {
}
div {
.test-calling-one-arg-mixin(1);
}
~~~~~~~~~~

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.scope {
@var: 99px;
.mixin () {
width: @var;
}
}
.class {
.scope > .mixin;
}
.overwrite {
@var: 0px;
.scope > .mixin;
}
.nested {
@var: 5px;
.mixin () {
width: @var;
}
.class {
@var: 10px;
.mixin;
}
}
~~~~~~~~~~

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// basics:
guard-default-basic-1 {
.m(1) {case: 1}
.m(@x) when (default()) {default: @x}
&-1 {.m(1)}
&-2 {.m(2)}
}
guard-default-basic-2 {
.m(1) {case: 1}
.m(2) {case: 2}
.m(3) {case: 3}
.m(@x) when (default()) {default: @x}
&-0 {.m(0)}
&-2 {.m(2)}
}
guard-default-basic-3 {
.m(@x) when (@x = 1) {case: 1}
.m(2) {case: 2}
.m(@x) when (@x = 3) {case: 3}
.m(@x) when (default()) {default: @x}
&-0 {.m(0)}
&-2 {.m(2)}
&-3 {.m(3)}
}
guard-default-definition-order {
.m(@x) when (default()) {default: @x}
.m(@x) when (@x = 1) {case: 1}
.m(2) {case: 2}
.m(@x) when (@x = 3) {case: 3}
&-0 {.m(0)}
&-2 {.m(2)}
&-2 {.m(3)}
}
// out of guard:
guard-default-out-of-guard {
.m(1) {case-1: 1}
.m(@x: default()) when (default()) {default: @x}
&-0 {
case-0: default();
.m(1);
.m(2);
case-2: default();
}
&-1 {.m(default())}
&-2 {.m()}
}
// expressions:
guard-default-expr-not {
.m(1) {case: 1}
.m(@x) when not(default()) {default: @x}
&-1 {.m(1)}
&-2 {.m(2)}
}
guard-default-expr-eq {
.m(@x) when (@x = true) {case: @x}
.m(@x) when (@x = false) {case: @x}
.m(@x) when (@x = default()) {default: @x}
&-true {.m(true)}
&-false {.m(false)}
}
guard-default-expr-or {
.m(1) {case: 1}
.m(2) {case: 2}
.m(@x) when (default()), (@x = 2) {default: @x}
&-1 {.m(1)}
&-2 {.m(2)}
&-3 {.m(3)}
}
guard-default-expr-and {
.m(1) {case: 1}
.m(2) {case: 2}
.m(@x) when (default()) and (@x = 3) {default: @x}
&-1 {.m(1)}
&-2 {.m(2)}
&-3 {.m(3)}
&-4 {.m(4)}
}
guard-default-expr-always {
.m(1) {case: 1}
.m(@x) when (default()), not(default()) {default: @x} // always match
&-1 {.m(1)}
&-2 {.m(2)}
}
guard-default-expr-never {
.m(1) {case: 1}
.m(@x) when (default()) and not(default()) {default: @x} // never match
&-1 {.m(1)}
&-2 {.m(2)}
}
// not conflicting multiple default() uses:
guard-default-multi-1 {
.m(0) {case: 0}
.m(@x) when (default()) {default-1: @x}
.m(2) when (default()) {default-2: @x}
&-0 {.m(0)}
&-1 {.m(1)}
}
guard-default-multi-2 {
.m(1, @x) when (default()) {default-1: @x}
.m(2, @x) when (default()) {default-2: @x}
.m(@x, yes) when (default()) {default-3: @x}
&-1 {.m(1, no)}
&-2 {.m(2, no)}
&-3 {.m(3, yes)}
}
guard-default-multi-3 {
.m(red) {case-1: darkred}
.m(blue) {case-2: darkblue}
.m(@x) when (iscolor(@x)) and (default()) {default-color: @x}
.m('foo') {case-1: I am 'foo'}
.m('bar') {case-2: I am 'bar'}
.m(@x) when (isstring(@x)) and (default()) {default-string: I am @x}
&-blue {.m(blue)}
&-green {.m(green)}
&-foo {.m('foo')}
&-baz {.m('baz')}
}
guard-default-multi-4 {
.m(@x) when (default()), not(default()) {always: @x}
.m(@x) when (default()) and not(default()) {never: @x}
.m(2) {case: 2}
.m(1);
.m(2);
}
guard-default-not-ambiguos-2 {
.m(@x) {case: 1}
.m(@x) when (default()) {default: @x}
.m(@x) when not(default()) {not-default: @x}
.m(2);
}
guard-default-not-ambiguos-3 {
.m(@x) {case: 1}
.m(@x) when not(default()) {not-default-1: @x}
.m(@x) when not(default()) {not-default-2: @x}
.m(2);
}
// default & scope
guard-default-scopes {
.s1() {.m(@v) {1: no condition}}
.s2() {.m(@v) when (@v) {2: when true}}
.s3() {.m(@v) when (default()) {3: when default}}
&-3 {
.s2();
.s3();
.m(false);
}
&-1 {
.s1();
.s3();
.m(false);
}
}
~~~~~~~~~~

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@ -0,0 +1,154 @@
// Stacking, functions..
.light (@a) when (lightness(@a) > 50%) {
color: white;
}
.light (@a) when (lightness(@a) < 50%) {
color: black;
}
.light (@a) {
margin: 1px;
}
.light1 { .light(#ddd) }
.light2 { .light(#444) }
// Arguments against each other
.max (@a, @b) when (@a > @b) {
width: @a;
}
.max (@a, @b) when (@a < @b) {
width: @b;
}
.max1 { .max(3, 6) }
.max2 { .max(8, 1) }
// Globals inside guards
@g: auto;
.glob (@a) when (@a = @g) {
margin: @a @g;
}
.glob1 { .glob(auto) }
// Other operators
.ops (@a) when (@a >= 0) {
height: gt-or-eq;
}
.ops (@a) when (@a =< 0) {
height: lt-or-eq;
}
.ops (@a) when (@a <= 0) {
height: lt-or-eq-alias;
}
.ops (@a) when not(@a = 0) {
height: not-eq;
}
.ops1 { .ops(0) }
.ops2 { .ops(1) }
.ops3 { .ops(-1) }
// Scope and default values
@a: auto;
.default (@a: inherit) when (@a = inherit) {
content: default;
}
.default1 { .default }
// true & false keywords
.test (@a) when (@a) {
content: "true.";
}
.test (@a) when not (@a) {
content: "false.";
}
.test1 { .test(true) }
.test2 { .test(false) }
.test3 { .test(1) }
.test4 { .test(boo) }
.test5 { .test("true") }
// Boolean expressions
.bool () when (true) and (false) { content: true and false } // FALSE
.bool () when (true) and (true) { content: true and true } // TRUE
.bool () when (true) { content: true } // TRUE
.bool () when (false) and (false) { content: true } // FALSE
.bool () when (false), (true) { content: false, true } // TRUE
.bool () when (false) and (true) and (true), (true) { content: false and true and true, true } // TRUE
.bool () when (true) and (true) and (false), (false) { content: true and true and false, false } // FALSE
.bool () when (false), (true) and (true) { content: false, true and true } // TRUE
.bool () when (false), (false), (true) { content: false, false, true } // TRUE
.bool () when (false), (false) and (true), (false) { content: false, false and true, false } // FALSE
.bool () when (false), (true) and (true) and (true), (false) { content: false, true and true and true, false } // TRUE
.bool () when not (false) { content: not false }
.bool () when not (true) and not (false) { content: not true and not false }
.bool () when not (true) and not (true) { content: not true and not true }
.bool () when not (false) and (false), not (false) { content: not false and false, not false }
.bool1 { .bool }
.equality-unit-test(@num) when (@num = 1%) {
test: fail;
}
.equality-unit-test(@num) when (@num = 2) {
test: pass;
}
.equality-units {
.equality-unit-test(1px);
.equality-unit-test(2px);
}
.colorguard(@col) when (@col = red) { content: is @col; }
.colorguard(@col) when not (blue = @col) { content: is not blue its @col; }
.colorguard(@col) {}
.colorguardtest {
.colorguard(red);
.colorguard(blue);
.colorguard(purple);
}
.stringguard(@str) when (@str = "theme1") { content: is theme1; }
.stringguard(@str) when not ("theme2" = @str) { content: is not theme2; }
.stringguard(@str) when (~"theme1" = @str) { content: is theme1 no quotes; }
.stringguard(@str) {}
.stringguardtest {
.stringguard("theme1");
.stringguard("theme2");
.stringguard(theme1);
}
.mixin(...) {
catch:all;
}
.mixin(@var) when (@var=4) {
declare: 4;
}
.mixin(@var) when (@var=4px) {
declare: 4px;
}
#tryNumberPx {
.mixin(4px);
}
.lock-mixin(@a) {
.inner-locked-mixin(@x: @a) when (@a = 1) {
a: @a;
x: @x;
}
}
.call-lock-mixin {
.lock-mixin(1);
.call-inner-lock-mixin {
.inner-locked-mixin();
}
}
~~~~~~~~~~

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@ -0,0 +1,26 @@
.submixin(@a) {
border-width: @a;
}
.mixin (9) {
border: 9 !important;
}
.mixin (@a: 0) {
border: @a;
boxer: @a;
.inner {
test: @a;
}
// comment
.submixin(@a);
}
.class {
.mixin(1);
.mixin(2) !important;
.mixin(3);
.mixin(4) !important;
.mixin(5);
.mixin !important;
.mixin(9);
}
~~~~~~~~~~

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@ -0,0 +1,70 @@
@a1: foo;
@a2: ~".foo";
@a4: ~"#foo";
.@{a1} {
a: 1;
}
@{a2} {
a: 2;
}
#@{a1} {
a: 3;
}
@{a4} {
a: 4;
}
mi-test-a {
.foo;
#foo;
}
.b .bb {
&.@{a1}-xxx .yyy-@{a1}@{a4} {
& @{a2}.bbb {
b: 1;
}
}
}
mi-test-b {
.b.bb.foo-xxx.yyy-foo#foo.foo.bbb;
}
@c1: @a1;
@c2: bar;
@c3: baz;
#@{c1}-foo {
> .@{c2} {
.@{c3} {
c: c;
}
}
}
mi-test-c {
&-1 {#foo-foo;}
&-2 {#foo-foo > .bar;}
&-3 {#foo-foo > .bar.baz;}
}
.Person(@name, @gender_) {
.@{name} {
@gender: @gender_;
.sayGender() {
gender: @gender;
}
}
}
mi-test-d {
.Person(person, "Male");
.person.sayGender();
}
~~~~~~~~~~

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.mixin (@a: 1px, @b: 50%) {
width: (@a * 5);
height: (@b - 1%);
args: @arguments;
}
.mixin (@a: 1px, @b: 50%) when (@b > 75%){
text-align: center;
}
.named-arg {
color: blue;
.mixin(@b: 100%);
}
.class {
@var: 20%;
.mixin(@b: @var);
}
.all-args-wrong-args {
.mixin(@b: 10%, @a: 2px);
}
.mixin2 (@a: 1px, @b: 50%, @c: 50) {
width: (@a * 5);
height: (@b - 1%);
color: (#000000 + @c);
}
.named-args2 {
.mixin2(3px, @c: 100);
}
.named-args3 {
.mixin2(@b: 30%, @c: #123456);
}
~~~~~~~~~~

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@ -0,0 +1,23 @@
.mix-inner (@var) {
border-width: @var;
}
.mix (@a: 10) {
.inner {
height: (@a * 10);
.innest {
width: @a;
.mix-inner((@a * 2));
}
}
}
.class {
.mix(30);
}
.class2 {
.mix(60);
}
~~~~~~~~~~

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.mixin (...) {
variadic: true;
}
.mixin (@a...) {
named-variadic: true;
}
.mixin () {
zero: 0;
}
.mixin (@a: 1px) {
one: 1;
}
.mixin (@a) {
one-req: 1;
}
.mixin (@a: 1px, @b: 2px) {
two: 2;
}
.mixin (@a, @b, @c) {
three-req: 3;
}
.mixin (@a: 1px, @b: 2px, @c: 3px) {
three: 3;
}
.zero {
.mixin();
}
.one {
.mixin(1);
}
.two {
.mixin(1, 2);
}
.three {
.mixin(1, 2, 3);
}
//
.mixout ('left') {
left: 1;
}
.mixout ('right') {
right: 1;
}
.left {
.mixout('left');
}
.right {
.mixout('right');
}
//
.border (@side, @width) {
color: black;
.border-side(@side, @width);
}
.border-side (left, @w) {
border-left: @w;
}
.border-side (right, @w) {
border-right: @w;
}
.border-right {
.border(right, 4px);
}
.border-left {
.border(left, 4px);
}
//
.border-radius (@r) {
both: (@r * 10);
}
.border-radius (@r, left) {
left: @r;
}
.border-radius (@r, right) {
right: @r;
}
.only-right {
.border-radius(33, right);
}
.only-left {
.border-radius(33, left);
}
.left-right {
.border-radius(33);
}
~~~~~~~~~~

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.mixin { border: 1px solid black; }
.mixout { border-color: orange; }
.borders { border-style: dashed; }
#namespace {
.borders {
border-style: dotted;
}
.biohazard {
content: "death";
.man {
color: transparent;
}
}
}
#theme {
> .mixin {
background-color: grey;
}
}
#container {
color: black;
.mixin;
.mixout;
#theme > .mixin;
}
#header {
.milk {
color: white;
.mixin;
#theme > .mixin;
}
#cookie {
.chips {
#namespace .borders;
.calories {
#container;
}
}
.borders;
}
}
.secure-zone { #namespace .biohazard .man; }
.direct {
#namespace > .borders;
}
.bo, .bar {
width: 100%;
}
.bo {
border: 1px;
}
.ar.bo.ca {
color: black;
}
.jo.ki {
background: none;
}
.amp {
&.support {
color: orange;
.higher {
top: 0px;
}
&.deeper {
height: auto;
}
}
}
.extended {
.bo;
.jo.ki;
.amp.support;
.amp.support.higher;
.amp.support.deeper;
}
.do .re .mi .fa {
.sol .la {
.si {
color: cyan;
}
}
}
.mutli-selector-parents {
.do.re.mi.fa.sol.la.si;
}
.foo .bar {
.bar;
}
.has_parents() {
& .underParents {
color: red;
}
}
.has_parents();
.parent {
.has_parents();
}
.margin_between(@above, @below) {
* + & { margin-top: @above; }
legend + & { margin-top: 0; }
& + * { margin-top: @below; }
}
h1 { .margin_between(25px, 10px); }
h2 { .margin_between(20px, 8px); }
h3 { .margin_between(15px, 5px); }
.mixin_def(@url, @position){
background-image: @url;
background-position: @position;
}
.error{
@s: "/";
.mixin_def( "@{s}a.png", center center);
}
.recursion() {
color: black;
}
.test-rec {
.recursion {
.recursion();
}
}
.paddingFloat(@padding) { padding-left: @padding; }
.button {
.paddingFloat(((10px + 12) * 2));
&.large { .paddingFloat(((10em * 2) * 2)); }
}
.clearfix() {
// ...
}
.clearfix {
.clearfix();
}
.foo {
.clearfix();
}
~~~~~~~~~~

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.mixin() {
}
~~~~~~~~~~

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#operations {
color: (#110000 + #000011 + #001100); // #111111
height: (10px / 2px + 6px - 1px * 2); // 9px
width: (2 * 4 - 5em); // 3em
.spacing {
height: (10px / 2px+6px-1px*2);
width: (2 * 4-5em);
}
substraction: (20 - 10 - 5 - 5); // 0
division: (20 / 5 / 4); // 1
}
@x: 4;
@y: 12em;
.with-variables {
height: (@x + @y); // 16em
width: (12 + @y); // 24em
size: (5cm - @x); // 1cm
}
.with-functions {
color: (rgb(200, 200, 200) / 2);
color: (2 * hsl(0, 50%, 50%));
color: (rgb(10, 10, 10) + hsl(0, 50%, 50%));
}
@z: -2;
.negative {
height: (2px + @z); // 0px
width: (2px - @z); // 4px
}
.shorthands {
padding: -1px 2px 0 -4px; //
}
.rem-dimensions {
font-size: (20rem / 5 + 1.5rem); // 5.5rem
}
.colors {
color: #123; // #112233
border-color: (#234 + #111111); // #334455
background-color: (#222222 - #fff); // #000000
.other {
color: (2 * #111); // #222222
border-color: (#333333 / 3 + #111); // #222222
}
}
.negations {
@var: 4px;
variable: (-@var); // 4
variable1: (-@var + @var); // 0
variable2: (@var + -@var); // 0
variable3: (@var - -@var); // 8
variable4: (-@var - -@var); // 0
paren: (-(@var)); // -4px
paren2: (-(2 + 2) * -@var); // 16
}
~~~~~~~~~~

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.parens {
@var: 1px;
border: (@var * 2) solid black;
margin: (@var * 1) (@var + 2) (4 * 4) 3;
width: (6 * 6);
padding: 2px (6 * 6px);
}
.more-parens {
@var: (2 * 2);
padding: (2 * @var) 4 4 (@var * 1px);
width-all: ((@var * @var) * 6);
width-first: ((@var * @var)) * 6;
width-keep: (@var * @var) * 6;
height-keep: (7 * 7) + (8 * 8);
height-all: ((7 * 7) + (8 * 8));
height-parts: ((7 * 7)) + ((8 * 8));
margin-keep: (4 * (5 + 5) / 2) - (@var * 2);
margin-parts: ((4 * (5 + 5) / 2)) - ((@var * 2));
margin-all: ((4 * (5 + 5) / 2) + (-(@var * 2)));
border-radius-keep: 4px * (1 + 1) / @var + 3px;
border-radius-parts: ((4px * (1 + 1))) / ((@var + 3px));
border-radius-all: (4px * (1 + 1) / @var + 3px);
//margin: (6 * 6)px;
}
.negative {
@var: 1;
neg-var: -@var; // -1 ?
neg-var-paren: -(@var); // -(1) ?
}
.nested-parens {
width: 2 * (4 * (2 + (1 + 6))) - 1;
height: ((2 + 3) * (2 + 3) / (9 - 4)) + 1;
}
.mixed-units {
margin: 2px 4em 1 5pc;
padding: (2px + 4px) 1em 2px 2;
}
.test-false-negatives {
a: ~"(";
}
~~~~~~~~~~

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test {
@prefix: ufo-;
@a: border;
@bb: top;
@c_c: left;
@d-d4: radius;
@-: -;
@{a}: 0;
@{prefix}width: 50%;
*-z-@{a} :1px dashed blue;
-www-@{a}-@{bb}: 2px;
@{d-d4}-is-not-a-@{a}:true;
@{a}-@{bb}-@{c_c}-@{d-d4} : 2em;
@{a}@{-}@{bb}@{-}red@{-}@{d-d4}-: 3pt;
.mixin(mixer);
.merge(ish, base);
}
@global: global;
.mixin(@arg) {
@local: local;
@{global}-@{local}-@{arg}-property: strong;
}
.merge(@p, @v) {
&-merge {
@prefix: pre;
@suffix: ish;
@{prefix}-property-ish+ :high;
pre-property-@{suffix} +: middle;
@{prefix}-property-@{suffix}+: low;
@{prefix}-property-@{p} + : @v;
@subterfuge: ~'+';
pre-property-ish@{subterfuge}: nice try dude;
}
}
~~~~~~~~~~

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#first > .one {
> #second .two > #deux {
width: 50%;
#third {
&:focus {
color: black;
#fifth {
> #sixth {
.seventh #eighth {
+ #ninth {
color: purple;
}
}
}
}
}
height: 100%;
}
#fourth, #five, #six {
color: #110000;
.seven, .eight > #nine {
border: 1px solid black;
}
#ten {
color: red;
}
}
}
font-size: 2em;
}
~~~~~~~~~~

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@x: red;
@x: blue;
@z: transparent;
@mix: none;
.mixin {
@mix: #989;
}
@mix: blue;
.tiny-scope {
color: @mix; // #989
.mixin;
}
.scope1 {
@y: orange;
@z: black;
color: @x; // blue
border-color: @z; // black
.hidden {
@x: #131313;
}
.scope2 {
@y: red;
color: @x; // blue
.scope3 {
@local: white;
color: @y; // red
border-color: @z; // black
background-color: @local; // white
}
}
}
#namespace {
.scoped_mixin() {
@local-will-be-made-global: green;
.scope {
scoped-val: @local-will-be-made-global;
}
}
}
#namespace > .scoped_mixin();
.setHeight(@h) { @height: 1024px; }
.useHeightInMixinCall(@h) { .useHeightInMixinCall { mixin-height: @h; } }
@mainHeight: 50%;
.setHeight(@mainHeight);
.heightIsSet { height: @height; }
.useHeightInMixinCall(@height);
.importRuleset() {
.imported {
exists: true;
}
}
.importRuleset();
.testImported {
.imported;
}
@parameterDefault: 'top level';
@anotherVariable: 'top level';
//mixin uses top-level variables
.mixinNoParam(@parameter: @parameterDefault) when (@parameter = 'top level') {
default: @parameter;
scope: @anotherVariable;
sub-scope-only: @subScopeOnly;
}
#allAreUsedHere {
//redefine top-level variables in different scope
@parameterDefault: 'inside';
@anotherVariable: 'inside';
@subScopeOnly: 'inside';
//use the mixin
.mixinNoParam();
}
#parentSelectorScope {
@col: white;
& {
@col: black;
}
prop: @col;
& {
@col: black;
}
}
.test-empty-mixin() {
}
#parentSelectorScopeMixins {
& {
.test-empty-mixin() {
should: never seee 1;
}
}
.test-empty-mixin();
& {
.test-empty-mixin() {
should: never seee 2;
}
}
}
~~~~~~~~~~

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h1, h2, h3 {
a, p {
&:hover {
color: red;
}
}
}
#all { color: blue; }
#the { color: blue; }
#same { color: blue; }
ul, li, div, q, blockquote, textarea {
margin: 0;
}
td {
margin: 0;
padding: 0;
}
td, input {
line-height: 1em;
}
a {
color: red;
&:hover { color: blue; }
div & { color: green; }
p & span { color: yellow; }
}
.foo {
.bar, .baz {
& .qux {
display: block;
}
.qux & {
display: inline;
}
.qux& {
display: inline-block;
}
.qux & .biz {
display: none;
}
}
}
.b {
&.c {
.a& {
color: red;
}
}
}
.b {
.c & {
&.a {
color: red;
}
}
}
.p {
.foo &.bar {
color: red;
}
}
.p {
.foo&.bar {
color: red;
}
}
.foo {
.foo + & {
background: amber;
}
& + & {
background: amber;
}
}
.foo, .bar {
& + & {
background: amber;
}
}
.foo, .bar {
a, b {
& > & {
background: amber;
}
}
}
.other ::fnord { color: red }
.other::fnord { color: red }
.other {
::bnord {color: red }
&::bnord {color: red }
}
// selector interpolation
@theme: blood;
@selector: ~".@{theme}";
@{selector} {
color:red;
}
@{selector}red {
color: green;
}
.red {
#@{theme}.@{theme}&.black {
color:black;
}
}
@num: 3;
:nth-child(@{num}) {
selector: interpolated;
}
.test {
&:nth-child(odd):not(:nth-child(3)) {
color: #ff0000;
}
}
[prop],
[prop=10%],
[prop="value@{num}"],
[prop*="val@{num}"],
[|prop~="val@{num}"],
[*|prop$="val@{num}"],
[ns|prop^="val@{num}"],
[@{num}^="val@{num}"],
[@{num}=@{num}],
[@{num}] {
attributes: yes;
}
/*
Large comment means chunk will be emitted after } which means chunk will begin with whitespace...
blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank
blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank
blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank
blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank
blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank
*/
@{selector} {
color: red;
}
~~~~~~~~~~

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#strings {
background-image: url("http://son-of-a-banana.com");
quotes: "~" "~";
content: "#*%:&^,)!.(~*})";
empty: "";
brackets: "{" "}";
escapes: "\"hello\" \\world";
escapes2: "\"llo";
}
#comments {
content: "/* hello */ // not-so-secret";
}
#single-quote {
quotes: "'" "'";
content: '""#!&""';
empty: '';
semi-colon: ';';
}
#escaped {
filter: ~"DX.Transform.MS.BS.filter(opacity=50)";
}
#one-line { image: url(http://tooks.com) }
#crazy { image: url(http://), "}", url("http://}") }
#interpolation {
@var: '/dev';
url: "http://lesscss.org@{var}/image.jpg";
@var2: 256;
url2: "http://lesscss.org/image-@{var2}.jpg";
@var3: #456;
url3: "http://lesscss.org@{var3}";
@var4: hello;
url4: "http://lesscss.org/@{var4}";
@var5: 54.4px;
url5: "http://lesscss.org/@{var5}";
}
// multiple calls with string interpolation
.mix-mul (@a: green) {
color: ~"@{a}";
}
.mix-mul-class {
.mix-mul(blue);
.mix-mul(red);
.mix-mul(black);
.mix-mul(orange);
}
@test: Arial, Verdana, San-Serif;
.watermark {
@family: ~"Univers, @{test}";
family: @family;
}
~~~~~~~~~~

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@ -0,0 +1,21 @@
@Eight: 8;
@charset "UTF-@{Eight}";
@ns: less;
@namespace @ns "http://lesscss.org";
@name: enlarger;
@keyframes @name {
from {font-size: 12px;}
to {font-size: 15px;}
}
.m(reducer);
.m(@name) {
@-webkit-keyframes @name {
from {font-size: 13px;}
to {font-size: 10px;}
}
}
~~~~~~~~~~

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@ -0,0 +1,84 @@
@a: 2;
@x: (@a * @a);
@y: (@x + 1);
@z: (@x * 2 + @y);
@var: -1;
.variables {
width: (@z + 1cm); // 14cm
}
@b: @a * 10;
@c: #888;
@fonts: "Trebuchet MS", Verdana, sans-serif;
@f: @fonts;
@quotes: "~" "~";
@q: @quotes;
@onePixel: 1px;
.variables {
height: (@b + @x + 0px); // 24px
color: @c;
font-family: @f;
quotes: @q;
}
.redef {
@var: 0;
.inition {
@var: 4;
@var: 2;
three: @var;
@var: 3;
}
zero: @var;
}
.values {
minus-one: @var;
@a: 'Trebuchet';
@multi: 'A', B, C;
font-family: @a, @a, @a;
color: @c !important;
multi: something @multi, @a;
}
.variable-names {
@var: 'hello';
@name: 'var';
name: @@name;
}
.alpha {
@var: 42;
filter: alpha(opacity=@var);
}
.polluteMixin() {
@a: 'pollution';
}
.testPollution {
@a: 'no-pollution';
a: @a;
.polluteMixin();
a: @a;
}
.units {
width: @onePixel;
same-unit-as-previously: (@onePixel / @onePixel);
square-pixel-divided: (@onePixel * @onePixel / @onePixel);
odd-unit: unit((@onePixel * 4em / 2cm));
percentage: (10 * 50%);
pixels: (50px * 10);
conversion-metric-a: (20mm + 1cm);
conversion-metric-b: (1cm + 20mm);
conversion-imperial: (1in + 72pt + 6pc);
custom-unit: (42octocats * 10);
custom-unit-cancelling: (8cats * 9dogs / 4cats);
mix-units: (1px + 1em);
invalid-units: (1px * 1px);
}
~~~~~~~~~~

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@ -0,0 +1,43 @@
.whitespace
{ color: white; }
.whitespace
{
color: white;
}
.whitespace
{ color: white; }
.whitespace{color:white;}
.whitespace { color : white ; }
.white,
.space,
.mania
{ color: white; }
.no-semi-column { color: white }
.no-semi-column {
color: white;
white-space: pre
}
.no-semi-column {border: 2px solid white}
.newlines {
background: the,
great,
wall;
border: 2px
solid
black;
}
.empty {
}
.sel
.newline_ws .tab_ws {
color:
white;
background-position: 45
-23;
}
~~~~~~~~~~