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PHP Class Beans_Lessc, Beans

Converting LESS to CSS is a three stage process. The incoming file is parsed by lessc_parser into a syntax tree, then it is compiled into another tree representing the CSS structure by lessc. The CSS tree is fed into a formatter, like lessc_formatter which then outputs CSS as a string. During the first compile, all values are *reduced*, which means that their types are brought to the lowest form before being dump as strings. This handles math equations, variable dereferences, and the like. The parse function of lessc is the entry point. In summary: The lessc class creates an intstance of the parser, feeds it LESS code, then transforms the resulting tree to a CSS tree. This class also holds the evaluation context, such as all available mixins and variables at any given time. The lessc_parser class is only concerned with parsing its input. The lessc_formatter takes a CSS tree, and dumps it to a formatted string, handling things like indentation. Mostra file Open project: Getbeans/Beans Class Usage Examples

Public Properties

Property	Type	Description
$VERSION
$defaultValue
$importDir
$importDisabled
$mPrefix		prefix of abstract properties
$parentSelector		prefix of abstract blocks
$vPrefix

Protected Properties

Property	Type	Description
$FALSE
$TRUE
$allParsedFiles
$cssColors
$libFunctions
$nextImportId
$numberPrecision
$preserveComments
$registeredVars
$sourceLoc
$sourceParser		so we know how to create error messages

Public Methods

Method	Description
__construct ( $fname = null )	Initialize any static state, can initialize parser for a file $opts isn't used yet
addImportDir ( $dir )
allParsedFiles ( )
cachedCompile ( mixed $in, boolean $force = false ) : array	Execute lessphp on a .less file or a lessphp cache structure
ccompile ( $in, $out, $less = null )	returns true when it compiles, false otherwise
cexecute ( $in, $force = false, $less = null )
checkedCompile ( $in, $out )	compile only if changed input has changed or output doesn't exist
compile ( $string, $name = null )
compileFile ( $fname, $outFname = null )
compressList ( $items, $delim )
lib_blue ( $color )
lib_green ( $color )
lib_red ( $color )
parse ( $str = null, $initialVariables = null )	This is deprecated
preg_quote ( $what )
registerFunction ( $name, $func )
setFormatter ( $name )
setImportDir ( $dirs )
setPreserveComments ( $preserve )
setVariables ( $variables )
unregisterFunction ( $name )
unsetVariable ( $name )

Protected Methods

Method	Description
addParsedFile ( $file )
assertArgs ( $value, $expectedArgs, $name = "" )
assertColor ( $value, $error = "expected color value" )
assertNumber ( $value, $error = "expecting number" )
clamp ( $v, $max = 1, $min )
coerceColor ( $value )	coerce a value for use in color operation
coerceString ( $value )	make something string like into a string
colorArgs ( $args )	Helper function to get arguments for color manipulation functions.
compileBlock ( $block )	Recursively compiles a block.
compileCSSBlock ( $block )
compileImportedProps ( $props, $block, $out, $sourceParser, $importDir )
compileMedia ( $media )
compileMediaQuery ( $queries )
compileNestedBlock ( $block, $selectors )
compileProp ( $prop, $block, $out )	compile a prop and update $lines or $blocks appropriately
compileProps ( $block, $out )
compileRoot ( $root )
compileSelectors ( $selectors )	reduces selector expressions
compileValue ( $value )	Compiles a primitive value into a CSS property value.
eq ( $left, $right )
evaluate ( $exp )	evaluate an expression
expandParentSelectors ( &$tag, $replace )
fileExists ( $name )
findBlocks ( $searchIn, $path, $orderedArgs, $keywordArgs, $seen = [] )	attempt to find blocks matched by path and args
findClosestSelectors ( )
findImport ( $url )	attempts to find the path of an import url, returns null for css files
fixColor ( $c )	make sure a color's components don't go out of bounds
flattenList ( $value )	turn list of length 1 into value type
funcToColor ( $func )	Convert the rgb, rgba, hsl color literals of function type as returned by the parser into values of color type.
get ( $name, $default = null )	get the highest occurrence entry for a name
injectVariables ( $args )	inject array of unparsed strings into environment as variables
lib__sprintf ( $args )
lib_acos ( $num )
lib_alpha ( $value )	defaults to 1 for non-colors or colors without an alpha
lib_argb ( $color )
lib_asin ( $num )
lib_atan ( $num )
lib_ceil ( $arg )
lib_contrast ( $args )
lib_cos ( $num )
lib_darken ( $args )
lib_desaturate ( $args )
lib_e ( )	use func_get_arg to prevent Theme Checker triggering unrelated translation warning.
lib_extract ( $value )
lib_fade ( $args )	set the alpha of the color
lib_fadein ( $args )
lib_fadeout ( $args )
lib_floor ( $arg )
lib_hue ( $color )
lib_iscolor ( $value )
lib_isem ( $value )
lib_iskeyword ( $value )
lib_isnumber ( $value )
lib_ispercentage ( $value )
lib_ispixel ( $value )
lib_isrem ( $value )
lib_isstring ( $value )
lib_lighten ( $args )
lib_lightness ( $color )
lib_mix ( $args )	http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html#mix-instance_method
lib_mod ( $args )
lib_percentage ( $arg )
lib_pi ( )
lib_pow ( $args )
lib_rgbahex ( $color )
lib_round ( $arg )
lib_saturate ( $args )
lib_saturation ( $color )
lib_sin ( $num )
lib_spin ( $args )
lib_sqrt ( $num )
lib_tan ( $num )
lib_unit ( $arg )
lib_unquote ( $arg )	use func_get_arg to prevent Theme Checker triggering unrelated translation warning.
makeOutputBlock ( $type, $selectors = null )	* environment functions
makeParser ( $name )
mediaParent ( $scope )
multiplyMedia ( $env, $childQueries = null )
multiplySelectors ( $selectors )	multiply $selectors against the nearest selectors in env
newFormatter ( )
op_color_color ( $op, $left, $right )
op_color_number ( $op, $lft, $rgt )
op_number_color ( $op, $lft, $rgt )
op_number_number ( $op, $left, $right )	operator on two numbers
patternMatch ( $block, $orderedArgs, $keywordArgs )
patternMatchAll ( $blocks, $orderedArgs, $keywordArgs, $skip = [] )
popEnv ( )	pop something off the stack
pushEnv ( $block = null )	the state of execution
reduce ( $value, $forExpression = false )
set ( $name, $value )	set something in the current env
sortProps ( $props, $split = false )
stringConcatenate ( $left, $right )
throwError ( $msg = null )	Uses the current value of $this->count to show line and line number
toBool ( $a )
toHSL ( $color )
toRGB ( $color )	Converts a hsl array into a color value in rgb.
toRGB_helper ( $comp, $temp1, $temp2 )
tryImport ( $importPath, $parentBlock, $out )
zipSetArgs ( $args, $orderedValues, $keywordValues )	or the one passed in through $values

Method Details

Property Details