A Parser for CSS Files written in PHP. Allows extraction of CSS files into a data structure, manipulation of said structure and output as (optimized) CSS

Overview

PHP CSS Parser

Build Status

A Parser for CSS Files written in PHP. Allows extraction of CSS files into a data structure, manipulation of said structure and output as (optimized) CSS.

Usage

Installation using composer

Add php-css-parser to your composer.json

{
    "require": {
        "sabberworm/php-css-parser": "*"
    }
}

Extraction

To use the CSS Parser, create a new instance. The constructor takes the following form:

new Sabberworm\CSS\Parser($sText);

To read a file, for example, you’d do the following:

$oCssParser = new Sabberworm\CSS\Parser(file_get_contents('somefile.css'));
$oCssDocument = $oCssParser->parse();

The resulting CSS document structure can be manipulated prior to being output.

Options

Charset

The charset option is used only if no @charset declaration is found in the CSS file. UTF-8 is the default, so you won’t have to create a settings object at all if you don’t intend to change that.

$oSettings = Sabberworm\CSS\Settings::create()->withDefaultCharset('windows-1252');
new Sabberworm\CSS\Parser($sText, $oSettings);

Strict parsing

To have the parser choke on invalid rules, supply a thusly configured Sabberworm\CSS\Settings object:

$oCssParser = new Sabberworm\CSS\Parser(file_get_contents('somefile.css'), Sabberworm\CSS\Settings::create()->beStrict());

Disable multibyte functions

To achieve faster parsing, you can choose to have PHP-CSS-Parser use regular string functions instead of mb_* functions. This should work fine in most cases, even for UTF-8 files, as all the multibyte characters are in string literals. Still it’s not recommended to use this with input you have no control over as it’s not thoroughly covered by test cases.

$oSettings = Sabberworm\CSS\Settings::create()->withMultibyteSupport(false);
new Sabberworm\CSS\Parser($sText, $oSettings);

Manipulation

The resulting data structure consists mainly of five basic types: CSSList, RuleSet, Rule, Selector and Value. There are two additional types used: Import and Charset which you won’t use often.

CSSList

CSSList represents a generic CSS container, most likely containing declaration blocks (rule sets with a selector) but it may also contain at-rules, charset declarations, etc. CSSList has the following concrete subtypes:

  • Document – representing the root of a CSS file.
  • MediaQuery – represents a subsection of a CSSList that only applies to a output device matching the contained media query.

To access the items stored in a CSSList – like the document you got back when calling $oCssParser->parse() –, use getContents(), then iterate over that collection and use instanceof to check whether you’re dealing with another CSSList, a RuleSet, a Import or a Charset.

To append a new item (selector, media query, etc.) to an existing CSSList, construct it using the constructor for this class and use the append($oItem) method.

RuleSet

RuleSet is a container for individual rules. The most common form of a rule set is one constrained by a selector. The following concrete subtypes exist:

  • AtRuleSet – for generic at-rules which do not match the ones specifically mentioned like @import, @charset or @media. A common example for this is @font-face.
  • DeclarationBlock – a RuleSet constrained by a Selector; contains an array of selector objects (comma-separated in the CSS) as well as the rules to be applied to the matching elements.

Note: A CSSList can contain other CSSLists (and Imports as well as a Charset) while a RuleSet can only contain Rules.

If you want to manipulate a RuleSet, use the methods addRule(Rule $oRule), getRules() and removeRule($mRule) (which accepts either a Rule instance or a rule name; optionally suffixed by a dash to remove all related rules).

Rule

Rules just have a key (the rule) and a value. These values are all instances of a Value.

Value

Value is an abstract class that only defines the render method. The concrete subclasses for atomic value types are:

  • Size – consists of a numeric size value and a unit.
  • Color – colors can be input in the form #rrggbb, #rgb or schema(val1, val2, …) but are always stored as an array of ('s' => val1, 'c' => val2, 'h' => val3, …) and output in the second form.
  • CSSString – this is just a wrapper for quoted strings to distinguish them from keywords; always output with double quotes.
  • URL – URLs in CSS; always output in URL("") notation.

There is another abstract subclass of Value, ValueList. A ValueList represents a lists of Values, separated by some separation character (mostly ,, whitespace, or /). There are two types of ValueLists:

  • RuleValueList – The default type, used to represent all multi-valued rules like font: bold 12px/3 Helvetica, Verdana, sans-serif; (where the value would be a whitespace-separated list of the primitive value bold, a slash-separated list and a comma-separated list).
  • CSSFunction – A special kind of value that also contains a function name and where the values are the function’s arguments. Also handles equals-sign-separated argument lists like filter: alpha(opacity=90);.

Convenience methods

There are a few convenience methods on Document to ease finding, manipulating and deleting rules:

  • getAllDeclarationBlocks() – does what it says; no matter how deeply nested your selectors are. Aliased as getAllSelectors().
  • getAllRuleSets() – does what it says; no matter how deeply nested your rule sets are.
  • getAllValues() – finds all Value objects inside Rules.

To-Do

  • More convenience methods [like selectorsWithElement($sId/Class/TagName), attributesOfType($sType), removeAttributesOfType($sType)]
  • Real multibyte support. Currently only multibyte charsets whose first 255 code points take up only one byte and are identical with ASCII are supported (yes, UTF-8 fits this description).
  • Named color support (using Color instead of an anonymous string literal)

Use cases

Use Parser to prepend an id to all selectors

$sMyId = "#my_id";
$oParser = new Sabberworm\CSS\Parser($sText);
$oCss = $oParser->parse();
foreach($oCss->getAllDeclarationBlocks() as $oBlock) {
	foreach($oBlock->getSelectors() as $oSelector) {
		//Loop over all selector parts (the comma-separated strings in a selector) and prepend the id
		$oSelector->setSelector($sMyId.' '.$oSelector->getSelector());
	}
}

Shrink all absolute sizes to half

$oParser = new Sabberworm\CSS\Parser($sText);
$oCss = $oParser->parse();
foreach($oCss->getAllValues() as $mValue) {
	if($mValue instanceof CSSSize && !$mValue->isRelative()) {
		$mValue->setSize($mValue->getSize()/2);
	}
}

Remove unwanted rules

$oParser = new Sabberworm\CSS\Parser($sText);
$oCss = $oParser->parse();
foreach($oCss->getAllRuleSets() as $oRuleSet) {
	$oRuleSet->removeRule('font-'); //Note that the added dash will make this remove all rules starting with font- (like font-size, font-weight, etc.) as well as a potential font-rule
	$oRuleSet->removeRule('cursor');
}

Output

To output the entire CSS document into a variable, just use ->render():

$oCssParser = new Sabberworm\CSS\Parser(file_get_contents('somefile.css'));
$oCssDocument = $oCssParser->parse();
print $oCssDocument->render();

If you want to format the output, pass an instance of type Sabberworm\CSS\OutputFormat:

$oFormat = Sabberworm\CSS\OutputFormat::create()->indentWithSpaces(4)->setSpaceBetweenRules("\n");
print $oCssDocument->render($oFormat);

Or use one of the predefined formats:

print $oCssDocument->render(Sabberworm\CSS\OutputFormat::createPretty());
print $oCssDocument->render(Sabberworm\CSS\OutputFormat::createCompact());

To see what you can do with output formatting, look at the tests in tests/Sabberworm/CSS/OutputFormatTest.php.

Examples

Example 1 (At-Rules)

Input

@charset "utf-8";

@font-face {
  font-family: "CrassRoots";
  src: url("../media/cr.ttf")
}

html, body {
    font-size: 1.6em
}

@keyframes mymove {
	from { top: 0px; }
	to { top: 200px; }
}

Structure (var_dump())

class Sabberworm\CSS\CSSList\Document#4 (2) {
  protected $aContents =>
  array(4) {
    [0] =>
    class Sabberworm\CSS\Property\Charset#6 (2) {
      private $sCharset =>
      class Sabberworm\CSS\Value\CSSString#5 (2) {
        private $sString =>
        string(5) "utf-8"
        protected $iLineNo =>
        int(1)
      }
      protected $iLineNo =>
      int(1)
    }
    [1] =>
    class Sabberworm\CSS\RuleSet\AtRuleSet#7 (4) {
      private $sType =>
      string(9) "font-face"
      private $sArgs =>
      string(0) ""
      private $aRules =>
      array(2) {
        'font-family' =>
        array(1) {
          [0] =>
          class Sabberworm\CSS\Rule\Rule#8 (4) {
            private $sRule =>
            string(11) "font-family"
            private $mValue =>
            class Sabberworm\CSS\Value\CSSString#9 (2) {
              private $sString =>
              string(10) "CrassRoots"
              protected $iLineNo =>
              int(4)
            }
            private $bIsImportant =>
            bool(false)
            protected $iLineNo =>
            int(4)
          }
        }
        'src' =>
        array(1) {
          [0] =>
          class Sabberworm\CSS\Rule\Rule#10 (4) {
            private $sRule =>
            string(3) "src"
            private $mValue =>
            class Sabberworm\CSS\Value\URL#11 (2) {
              private $oURL =>
              class Sabberworm\CSS\Value\CSSString#12 (2) {
                private $sString =>
                string(15) "../media/cr.ttf"
                protected $iLineNo =>
                int(5)
              }
              protected $iLineNo =>
              int(5)
            }
            private $bIsImportant =>
            bool(false)
            protected $iLineNo =>
            int(5)
          }
        }
      }
      protected $iLineNo =>
      int(3)
    }
    [2] =>
    class Sabberworm\CSS\RuleSet\DeclarationBlock#13 (3) {
      private $aSelectors =>
      array(2) {
        [0] =>
        class Sabberworm\CSS\Property\Selector#14 (2) {
          private $sSelector =>
          string(4) "html"
          private $iSpecificity =>
          NULL
        }
        [1] =>
        class Sabberworm\CSS\Property\Selector#15 (2) {
          private $sSelector =>
          string(4) "body"
          private $iSpecificity =>
          NULL
        }
      }
      private $aRules =>
      array(1) {
        'font-size' =>
        array(1) {
          [0] =>
          class Sabberworm\CSS\Rule\Rule#16 (4) {
            private $sRule =>
            string(9) "font-size"
            private $mValue =>
            class Sabberworm\CSS\Value\Size#17 (4) {
              private $fSize =>
              double(1.6)
              private $sUnit =>
              string(2) "em"
              private $bIsColorComponent =>
              bool(false)
              protected $iLineNo =>
              int(9)
            }
            private $bIsImportant =>
            bool(false)
            protected $iLineNo =>
            int(9)
          }
        }
      }
      protected $iLineNo =>
      int(8)
    }
    [3] =>
    class Sabberworm\CSS\CSSList\KeyFrame#18 (4) {
      private $vendorKeyFrame =>
      string(9) "keyframes"
      private $animationName =>
      string(6) "mymove"
      protected $aContents =>
      array(2) {
        [0] =>
        class Sabberworm\CSS\RuleSet\DeclarationBlock#19 (3) {
          private $aSelectors =>
          array(1) {
            [0] =>
            class Sabberworm\CSS\Property\Selector#20 (2) {
              private $sSelector =>
              string(4) "from"
              private $iSpecificity =>
              NULL
            }
          }
          private $aRules =>
          array(1) {
            'top' =>
            array(1) {
              [0] =>
              class Sabberworm\CSS\Rule\Rule#21 (4) {
                private $sRule =>
                string(3) "top"
                private $mValue =>
                class Sabberworm\CSS\Value\Size#22 (4) {
                  private $fSize =>
                  double(0)
                  private $sUnit =>
                  string(2) "px"
                  private $bIsColorComponent =>
                  bool(false)
                  protected $iLineNo =>
                  int(13)
                }
                private $bIsImportant =>
                bool(false)
                protected $iLineNo =>
                int(13)
              }
            }
          }
          protected $iLineNo =>
          int(13)
        }
        [1] =>
        class Sabberworm\CSS\RuleSet\DeclarationBlock#23 (3) {
          private $aSelectors =>
          array(1) {
            [0] =>
            class Sabberworm\CSS\Property\Selector#24 (2) {
              private $sSelector =>
              string(2) "to"
              private $iSpecificity =>
              NULL
            }
          }
          private $aRules =>
          array(1) {
            'top' =>
            array(1) {
              [0] =>
              class Sabberworm\CSS\Rule\Rule#25 (4) {
                private $sRule =>
                string(3) "top"
                private $mValue =>
                class Sabberworm\CSS\Value\Size#26 (4) {
                  private $fSize =>
                  double(200)
                  private $sUnit =>
                  string(2) "px"
                  private $bIsColorComponent =>
                  bool(false)
                  protected $iLineNo =>
                  int(14)
                }
                private $bIsImportant =>
                bool(false)
                protected $iLineNo =>
                int(14)
              }
            }
          }
          protected $iLineNo =>
          int(14)
        }
      }
      protected $iLineNo =>
      int(12)
    }
  }
  protected $iLineNo =>
  int(1)
}

Output (render())

@charset "utf-8";
@font-face {font-family: "CrassRoots";src: url("../media/cr.ttf");}
html, body {font-size: 1.6em;}
@keyframes mymove {from {top: 0px;}
	to {top: 200px;}}

Example 2 (Values)

Input

#header {
	margin: 10px 2em 1cm 2%;
	font-family: Verdana, Helvetica, "Gill Sans", sans-serif;
	color: red !important;
}

Structure (var_dump())

class Sabberworm\CSS\CSSList\Document#4 (2) {
  protected $aContents =>
  array(1) {
    [0] =>
    class Sabberworm\CSS\RuleSet\DeclarationBlock#5 (3) {
      private $aSelectors =>
      array(1) {
        [0] =>
        class Sabberworm\CSS\Property\Selector#6 (2) {
          private $sSelector =>
          string(7) "#header"
          private $iSpecificity =>
          NULL
        }
      }
      private $aRules =>
      array(3) {
        'margin' =>
        array(1) {
          [0] =>
          class Sabberworm\CSS\Rule\Rule#7 (4) {
            private $sRule =>
            string(6) "margin"
            private $mValue =>
            class Sabberworm\CSS\Value\RuleValueList#12 (3) {
              protected $aComponents =>
              array(4) {
                [0] =>
                class Sabberworm\CSS\Value\Size#8 (4) {
                  private $fSize =>
                  double(10)
                  private $sUnit =>
                  string(2) "px"
                  private $bIsColorComponent =>
                  bool(false)
                  protected $iLineNo =>
                  int(2)
                }
                [1] =>
                class Sabberworm\CSS\Value\Size#9 (4) {
                  private $fSize =>
                  double(2)
                  private $sUnit =>
                  string(2) "em"
                  private $bIsColorComponent =>
                  bool(false)
                  protected $iLineNo =>
                  int(2)
                }
                [2] =>
                class Sabberworm\CSS\Value\Size#10 (4) {
                  private $fSize =>
                  double(1)
                  private $sUnit =>
                  string(2) "cm"
                  private $bIsColorComponent =>
                  bool(false)
                  protected $iLineNo =>
                  int(2)
                }
                [3] =>
                class Sabberworm\CSS\Value\Size#11 (4) {
                  private $fSize =>
                  double(2)
                  private $sUnit =>
                  string(1) "%"
                  private $bIsColorComponent =>
                  bool(false)
                  protected $iLineNo =>
                  int(2)
                }
              }
              protected $sSeparator =>
              string(1) " "
              protected $iLineNo =>
              int(2)
            }
            private $bIsImportant =>
            bool(false)
            protected $iLineNo =>
            int(2)
          }
        }
        'font-family' =>
        array(1) {
          [0] =>
          class Sabberworm\CSS\Rule\Rule#13 (4) {
            private $sRule =>
            string(11) "font-family"
            private $mValue =>
            class Sabberworm\CSS\Value\RuleValueList#15 (3) {
              protected $aComponents =>
              array(4) {
                [0] =>
                string(7) "Verdana"
                [1] =>
                string(9) "Helvetica"
                [2] =>
                class Sabberworm\CSS\Value\CSSString#14 (2) {
                  private $sString =>
                  string(9) "Gill Sans"
                  protected $iLineNo =>
                  int(3)
                }
                [3] =>
                string(10) "sans-serif"
              }
              protected $sSeparator =>
              string(1) ","
              protected $iLineNo =>
              int(3)
            }
            private $bIsImportant =>
            bool(false)
            protected $iLineNo =>
            int(3)
          }
        }
        'color' =>
        array(1) {
          [0] =>
          class Sabberworm\CSS\Rule\Rule#16 (4) {
            private $sRule =>
            string(5) "color"
            private $mValue =>
            string(3) "red"
            private $bIsImportant =>
            bool(true)
            protected $iLineNo =>
            int(4)
          }
        }
      }
      protected $iLineNo =>
      int(1)
    }
  }
  protected $iLineNo =>
  int(1)
}

Output (render())

#header {margin: 10px 2em 1cm 2%;font-family: Verdana,Helvetica,"Gill Sans",sans-serif;color: red !important;}

Contributors/Thanks to

Misc

  • Legacy Support: The latest pre-PSR-0 version of this project can be checked with the 0.9.0 tag.
  • Running Tests: To run all unit tests for this project, run composer install to install phpunit and use ./vendor/phpunit/phpunit/phpunit.

License

PHP-CSS-Parser is freely distributable under the terms of an MIT-style license.

Copyright (c) 2011 Raphael Schweikert, http://sabberworm.com/

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Issues
  • Add line number support in the sabberworm CSS parser

    Add line number support in the sabberworm CSS parser

    AMP HTML is a restricted subset of HTML (See https://www.ampproject.org/ for more details) and the AMP PHP Library provide validation and HTML to AMP HTML conversion utilities. We're using the masterminds/html5-php library to parse HTML5 and we're using sabberworm/php-css-parser to parse the CSS in the AMP PHP Library

    After parsing the CSS parse we report any problems in the CSS (for e.g. !important is disallowed in the AMP dialect of HTML, we use the sabberworm parser to find all the uses of !important for instance)

    Now the CSS supplied by the user could be hundreds / thousands of lines long. So its not useful to simply say that !important was used and is not allowed. We should be able to say which line the problem occurred.

    This pull request adds support for line numbers. Here is how we're using this https://github.com/Lullabot/amp-library/pull/80#issuecomment-222695630 Notice the line numbers reported in the validation errors which coming from code submitted in this PR.

    Would greatly appreciate if you had a look and merge it if you believe this feature would be useful. Hopefully the code changes have not missed anything out.

    Thanks for this useful library BTW.

    opened by sidkshatriya 23
  • Support CSS3 calc()

    Support CSS3 calc()

    Following document throws Sabberworm\CSS\Parsing\UnexpectedTokenException with message Identifier expected. Got “+ 20p”. This is expected to be valid CSS document:

    body
    {
        border-top: solid green 0em;
        border-top-width: calc(1em + 20px);
    }
    

    The parser is initialized like this:

    $settings = Sabberworm\CSS\Settings::create();
    $settings->beStrict();
    $parser = new Sabberworm\CSS\Parser($css, $settings);
    

    I think Parser::parseValue() would need to be modified but I have no idea how to fix this.

    tbd css3 
    opened by mikkorantalainen 9
  • CSSRule->__toString doesn't work with sized values

    CSSRule->__toString doesn't work with sized values

    If I have a CSS rule as follows (this is in your example css): div.rating-cancel,div.star-rating{width:17px;height:15px;}

    The CSSRule->__toString either throws an error, or it looks like this: width: Object;

    The problem is on line 707 when it tries to implode a comma into the values. When a value is a CSSSize, it produces the above result.

    For you to test this, in your CSSParserTests.php file, change line 19 to: $oDoc = $oParser->parse(); and add this line after the catch clause echo $oDoc->__toString();

    opened by lieutdan13 8
  • Fatal error: Class 'Sabberworm\CSS\Parser' not found in /Users/anthonymccuen/Sites/thal/index.php on line 4

    Fatal error: Class 'Sabberworm\CSS\Parser' not found in /Users/anthonymccuen/Sites/thal/index.php on line 4

    I can't use the parser because PHP claims no such class exist. :-/

    I'm using Mac OS X 10.8.x btw.

    opened by ghost 8
  • Unicode character handling

    Unicode character handling

    Hi,

    I noticed the Unicode character handling did not work as intended so I made a patch.

    opened by cyberwolf 8
  • added support for merging imported stylesheets

    added support for merging imported stylesheets

    This commit allows to resolve @import rules, merging their declarations into the main stylesheet. Required a few changes to the API, see the comments.

    opened by ju1ius 8
  • retain CSSList and Rule comments when rendering CSS

    retain CSSList and Rule comments when rendering CSS

    Hi, was banging my head against the wall as my css comments would vanish when using a autoprefixer repo that utilizes this repo. Found out that the issue was that comments are only partly implemented in this repo: they are recognized, but when rendering the parsed css code they are not added back.

    So I rolled up my sleeves and did this PR.

    This PR does two things:

    1. fix the comments implementation as only the first comments where taken and not the subsequent comments in a CSSList
    2. adds the comments back into the rendered CSS (as also requested in #38 )

    So this is my first PR in this repo, would love to have some feedback / discussion / tests :)

    Thanks in advance, regards, Ruud

    opened by Ruud68 7
  • How to remove @import

    How to remove @import

    Hi,

    Just like

    foreach($oCssDocument->getAllRuleSets() as $oRuleSet) {
    	$oRuleSet->removeRule('-moz-binding');
    	$oRuleSet->removeRule('behavior');
    	$oRuleSet->removeRule('background-image');
    	$oRuleSet->removeRule('xss');
    }
    

    Can we remove @import url("chrome://communicator/skin/"); line via removeRule ?

    opened by teckkid 7
  • Lacks PHP v8.1 compatibility

    Lacks PHP v8.1 compatibility

    PHP v8.1 (currently a release candidate) deprecates several parameter types and throws warnings such as Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in PHP-CSS-Parser\lib\Sabberworm\CSS\Parsing\ParserState.php on line 285

    opened by dleffler 6
  • Add `@covers` annotations to the tests

    Add `@covers` annotations to the tests

    These make sure that only the lines of the classes the testcases are about are marked as covered, hence reducing false coverage.

    opened by oliverklee 6
  • issue with var on multiline

    issue with var on multiline

    Hi, having an issue with vars that are 'styled' on multiple lines (on latest commit dd jan 10, 2022):

    This works correct:

    :root {
    	--my-color: 255, 0, 0;
    	--my-opacity: 210;
    }
    
    body {
    	background-color: rgba(var(--my-color), var(--my-opacity)) !important;
    }
    

    it renders to:

    :root {
    	--my-color: 255, 0, 0;
    	--my-opacity: 210;
    }
    
    body {
    	background-color: rgba(var(--my-color), var(--my-opacity)) !important;
    }
    

    but this doesn't work correct:

    :root {
    	--my-color: 255, 0, 0;
    	--my-opacity: 210;
    }
    
    body {
    	background-color: rgba(
    		var(--my-color),
    		var(--my-opacity)
    	) !important;
    }
    

    it renders to:

    :root {
            --my-color: 255, 0, 0;
            --my-opacity: 210;
    }
    
    body {}
    

    This is only the case when using vars, as the following is styled the same and works correct:

    :root {
    	--my-color: 255, 0, 0;
    	--my-opacity: 210;
    }
    
    body {
    	background-color: rgba(
    		255,
    		234,
    		231,
    		210
    	) !important;
    }
    

    this renders to:

    :root {
            --my-color: 255, 0, 0;
            --my-opacity: 210;
    }
    
    body {
            background-color: rgba(255, 234, 231, 210) !important;
    }
    
    opened by Ruud68 0
  • Sync the code documentation from the README to the source files

    Sync the code documentation from the README to the source files

    This should help readers understand the code.

    Also drop outdated documentation and polish the existing prose.

    Fixes #300

    opened by oliverklee 0
  • Do not allow string values for rules anymore

    Do not allow string values for rules anymore

    String values had not been allowed for rules, and should not be. (Passing string values was a bug in the Emogrifier library.)

    @see https://github.com/MyIntervals/emogrifier/pull/1144

    This reverts commit 67a6e95f8ad2c9c3d8d745f1943eda8da81383a4.

    opened by oliverklee 2
  • @media block gives syntax error

    @media block gives syntax error

    @media (min-width: 1220px) {
      div { width:auto; }
    }
    

    gives an "Syntax error in CSS: Identifier expected. Got “}” [line no: 3]"

    This looks like a regression in version 8.4.0 - I'm suspecting https://github.com/sabberworm/PHP-CSS-Parser/pull/162

    opened by crisp-tweakers 1
  • Strict parsing mode exception with whitespace-only CSS

    Strict parsing mode exception with whitespace-only CSS

    In the following test, only the empty string passes:

        public function provideEmptyCss()
        {
            return [
                'empty string' => [''],
                'space' => [' '],
                'newline' => ["\n"],
                'carriage return' => ["\r"],
                'tab' => ["\t"],
                'Windows line ending' => ["\r\n"],
                'comment' => ['/**/'],
            ];
        }
    
        /**
         * @test
         *
         * @dataProvider provideEmptyCss
         */
        public function parsesEmptyCssInStrictMode($css)
        {
            $oParser = new Parser($css, Settings::create()->beStrict());
    
            self::assertSame('', $oParser->parse()->render());
        }
    

    The others fail:

    Sabberworm\CSS\Parsing\UnexpectedEOFException: Next token was expected to have 1 chars. Context: “”. [line no: 1]
    
    D:\Data\dev\PHP-CSS-Parser\src\Parsing\ParserState.php:279
    D:\Data\dev\PHP-CSS-Parser\src\RuleSet\DeclarationBlock.php:58
    D:\Data\dev\PHP-CSS-Parser\src\CSSList\CSSList.php:146
    D:\Data\dev\PHP-CSS-Parser\src\CSSList\CSSList.php:82
    D:\Data\dev\PHP-CSS-Parser\src\CSSList\Document.php:35
    D:\Data\dev\PHP-CSS-Parser\src\Parser.php:58
    D:\Data\dev\PHP-CSS-Parser\tests\ParserTest.php:90
    

    The lenient-mode equivalent test passes fine, however.

    opened by JakeQZ 0
  • [href=https://example.org] selector is discarded

    [href=https://example.org] selector is discarded

    This is a BC issue following #162.

    Maybe the regex can be fixed, or maye a different approach is needed.

    opened by JakeQZ 2
  • Fixes #341

    Fixes #341

    Fixes #341

    opened by Schrank 0
  • iconv(): Wrong charset, conversion from `utf-32le` to `utf-8` is not allowed

    iconv(): Wrong charset, conversion from `utf-32le` to `utf-8` is not allowed

    I don't understand why and I am not able to reproduce this issue on our staging server (it happens on the production system). But maybe someone else has more knowledge about all this than me.

    12:34:45 WARNING   [php] Notice: iconv(): Wrong charset, conversion from `utf-32le' to `utf-8' is not allowed
    [
      "exception" => ErrorException {
        #message: "Notice: iconv(): Wrong charset, conversion from `utf-32le' to `utf-8' is not allowed"
        #code: 0
        #file: "/web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parsing/ParserState.php"
        #line: 91
        #severity: E_NOTICE
        trace: {
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parsing/ParserState.php:91 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Value/CSSString.php:37 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Value/Value.php:90 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Value/Value.php:36 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Rule/Rule.php:39 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/RuleSet/RuleSet.php:35 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/RuleSet/DeclarationBlock.php:33 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/CSSList/CSSList.php:98 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/CSSList/CSSList.php:49 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/CSSList/Document.php:21 { …}
          /web/releases/20210916164447/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php:38 { …}
          /web/releases/20210916164447/vendor/shopware/storefront/Theme/Autoprefixer.php:31 { …}
          /web/releases/20210916164447/vendor/shopware/storefront/Theme/ThemeCompiler.php:224 { …}
          /web/releases/20210916164447/vendor/shopware/storefront/Theme/ThemeCompiler.php:127 { …}
          /web/releases/20210916164447/vendor/shopware/storefront/Theme/ThemeService.php:68 { …}
          /web/releases/20210916164447/vendor/shopware/storefront/Theme/Command/ThemeCompileCommand.php:63 { …}
          /web/releases/20210916164447/vendor/symfony/console/Command/Command.php:255 { …}
          /web/releases/20210916164447/vendor/symfony/console/Application.php:1027 { …}
          /web/releases/20210916164447/vendor/symfony/framework-bundle/Console/Application.php:97 { …}
          /web/releases/20210916164447/vendor/symfony/console/Application.php:273 { …}
          /web/releases/20210916164447/vendor/symfony/framework-bundle/Console/Application.php:83 { …}
          /web/releases/20210916164447/vendor/symfony/console/Application.php:149 { …}
          /web/releases/20210916164447/bin/console:68 {
            › $application = new Application($kernel->getKernel());
            › $application->run($input);
            ›
          }
        }
      }
    ]
    

    The problem happens while compiling a shopware theme and my solution is to change line 91 of the ParserState:

    // from
    return iconv('utf-32le', $this->sCharset, $sUtf32);
    // to
    mb_convert_encoding($sUtf32 , $this->sCharset , 'UTF-32LE');
    

    It seems some versions of iconv can't convert UTF32LE to UTF-8, although the PHP and iconv version are the same on both my machines 🤷

    Feel free to not accept the PR, for the moment I'll fix it with a composer-patch.

    P.S. Thanks for your work! <3

    opened by Schrank 0
  • Fix comments being omitted in the middle of a rule

    Fix comments being omitted in the middle of a rule

    This is an updated version of #180

    We do rely on this patch, it would be great if it could be merged into the main repository.

    opened by derschatta 0
  • Is it supports scss/less ?

    Is it supports scss/less ?

    Is it supports scss/less ?

    opened by Insolita 2
Releases(8.2.0)
  • 8.2.0(Feb 22, 2019)

    8.2.0 (2018-07-13)

    • Support parsing calc(), thanks to @raxbg.
    • Support parsing grid-lines, again thanks to @raxbg.
    • Support parsing legacy IE filters (progid:) in lenient mode, thanks to @FMCorz
    • Performance improvements parsing large files, again thanks to @FMCorz
    • No backwards-incompatible changes
    • No deprecations
    Source code(tar.gz)
    Source code(zip)
  • 8.3.0(Feb 22, 2019)

    8.3.0 (2019-02-22)

    • Refactor parsing logic to mostly reside in the class files whose data structure is to be parsed (this should eventually allow us to unit-test specific parts of the parsing logic individually).
    • Fix error in parsing calc expessions when the first operand is a negative number, thanks to @raxbg.
    • Support parsing CSS4 colors in hex notation with alpha values, thanks to @raxbg.
    • Swallow more errors in lenient mode, thanks to @raxbg.
    • Allow specifying arbitrary strings to output before and after declaration blocks, thanks to @westonruter.
    • No backwards-incompatible changes
    • No deprecations
    Source code(tar.gz)
    Source code(zip)
  • 8.1.0(Jul 19, 2016)

    8.1.0 (2016-07-19)

    • Comments are no longer silently ignored but stored with the object with which they appear (no render support, though). Thanks to @FMCorz.
    • The IE hacks using \0 and \9 can now be parsed (and rendered) in lenient mode. Thanks (again) to @FMCorz.
    • Media queries with or without spaces before the query are parsed. Still no real parsing support, though. Sorry…
    • PHPUnit is now listed as a dev-dependency in composer.json.
    • No backwards-incompatible changes
    • No deprecations
    Source code(tar.gz)
    Source code(zip)
  • 8.0.0(Jun 30, 2016)

    8.0.0 (2016-06-30)

    • Store source CSS line numbers in tokens and parsing exceptions.
    • No deprecations

    Backwards-incompatible changes

    • Unrecoverable parser errors throw an exception of type Sabberworm\CSS\Parsing\SourceException instead of \Exception.
    Source code(tar.gz)
    Source code(zip)
  • 7.0.3(Apr 26, 2016)

  • 7.0.2(Feb 11, 2016)

  • 7.0.1(Dec 25, 2015)

  • 7.0.0(Aug 24, 2015)

    7.0.0 (2015-08-24)

    • Compatibility with PHP 7. Well timed, eh?

    Deprecations

    • The Sabberworm\CSS\Value\String class has been renamed to Sabberworm\CSS\Value\CSSString.
    Source code(tar.gz)
    Source code(zip)
  • 6.0.1(Aug 24, 2015)

  • 5.1.1(Jul 4, 2014)

  • 5.2.0(Jul 4, 2014)

    5.2.0 (2014-06-30)

    • Support removing a selector from a declaration block using $oBlock->removeSelector($mSelector)
    • Introduce a specialized exception (Sabberworm\CSS\Parsing\OuputException) for exceptions during output rendering
    • No deprecations

    Backwards-incompatible changes

    • Outputting a declaration block that has no selectors throws an OuputException instead of outputting an invalid {…} into the CSS document.
    Source code(tar.gz)
    Source code(zip)
  • 6.0.0(Jul 4, 2014)

    6.0.0 (2014-07-03)

    • Format output using Sabberworm\CSS\OutputFormat
    • No backwards-incompatible changes

    Deprecations

    • The parse() method replaces __toString with an optional argument (instance of the OutputFormat class)
    Source code(tar.gz)
    Source code(zip)
  • 5.1.2(Apr 24, 2014)

    5.1.2 (2013-10-30)

    • Remove the use of consumeUntil in comment parsing. This makes it possible to parse comments such as /** Perfectly valid **/
    • Add fr relative size unit
    • Fix some issues with HHVM
    • No backwards-incompatible changes
    • No deprecations
    Source code(tar.gz)
    Source code(zip)
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