From fd72b0f50a355006069c5a336441f08beb7d3c50 Mon Sep 17 00:00:00 2001 From: derchris Date: Mon, 4 Feb 2019 13:11:28 +0100 Subject: Revert "update less.php to PHP 7.x compatible fork" This reverts commit 7ad9f272a482802da2d43fe83841adbe9bcd8cb4. --- lib/less.php/Functions.php | 1188 -------------------------------------------- 1 file changed, 1188 deletions(-) delete mode 100644 lib/less.php/Functions.php (limited to 'lib/less.php/Functions.php') diff --git a/lib/less.php/Functions.php b/lib/less.php/Functions.php deleted file mode 100644 index a61e5ac..0000000 --- a/lib/less.php/Functions.php +++ /dev/null @@ -1,1188 +0,0 @@ -env = $env; - $this->currentFileInfo = $currentFileInfo; - } - - /** - * @param string $op - */ - public static function operate( $op, $a, $b ){ - switch ($op) { - case '+': return $a + $b; - case '-': return $a - $b; - case '*': return $a * $b; - case '/': return $a / $b; - } - } - - public static function clamp($val, $max = 1){ - return min( max($val, 0), $max); - } - - public static function fround( $value ){ - - if( $value === 0 ){ - return $value; - } - - if( Less_Parser::$options['numPrecision'] ){ - $p = pow(10, Less_Parser::$options['numPrecision']); - return round( $value * $p) / $p; - } - return $value; - } - - public static function number($n){ - - if ($n instanceof Less_Tree_Dimension) { - return floatval( $n->unit->is('%') ? $n->value / 100 : $n->value); - } else if (is_numeric($n)) { - return $n; - } else { - throw new Less_Exception_Compiler("color functions take numbers as parameters"); - } - } - - public static function scaled($n, $size = 255 ){ - if( $n instanceof Less_Tree_Dimension && $n->unit->is('%') ){ - return (float)$n->value * $size / 100; - } else { - return Less_Functions::number($n); - } - } - - public function rgb ($r = null, $g = null, $b = null){ - if (is_null($r) || is_null($g) || is_null($b)) { - throw new Less_Exception_Compiler("rgb expects three parameters"); - } - return $this->rgba($r, $g, $b, 1.0); - } - - public function rgba($r = null, $g = null, $b = null, $a = null){ - $rgb = array($r, $g, $b); - $rgb = array_map(array('Less_Functions','scaled'),$rgb); - - $a = self::number($a); - return new Less_Tree_Color($rgb, $a); - } - - public function hsl($h, $s, $l){ - return $this->hsla($h, $s, $l, 1.0); - } - - public function hsla($h, $s, $l, $a){ - - $h = fmod(self::number($h), 360) / 360; // Classic % operator will change float to int - $s = self::clamp(self::number($s)); - $l = self::clamp(self::number($l)); - $a = self::clamp(self::number($a)); - - $m2 = $l <= 0.5 ? $l * ($s + 1) : $l + $s - $l * $s; - - $m1 = $l * 2 - $m2; - - return $this->rgba( self::hsla_hue($h + 1/3, $m1, $m2) * 255, - self::hsla_hue($h, $m1, $m2) * 255, - self::hsla_hue($h - 1/3, $m1, $m2) * 255, - $a); - } - - /** - * @param double $h - */ - public function hsla_hue($h, $m1, $m2){ - $h = $h < 0 ? $h + 1 : ($h > 1 ? $h - 1 : $h); - if ($h * 6 < 1) return $m1 + ($m2 - $m1) * $h * 6; - else if ($h * 2 < 1) return $m2; - else if ($h * 3 < 2) return $m1 + ($m2 - $m1) * (2/3 - $h) * 6; - else return $m1; - } - - public function hsv($h, $s, $v) { - return $this->hsva($h, $s, $v, 1.0); - } - - /** - * @param double $a - */ - public function hsva($h, $s, $v, $a) { - $h = ((Less_Functions::number($h) % 360) / 360 ) * 360; - $s = Less_Functions::number($s); - $v = Less_Functions::number($v); - $a = Less_Functions::number($a); - - $i = floor(($h / 60) % 6); - $f = ($h / 60) - $i; - - $vs = array( $v, - $v * (1 - $s), - $v * (1 - $f * $s), - $v * (1 - (1 - $f) * $s)); - - $perm = array(array(0, 3, 1), - array(2, 0, 1), - array(1, 0, 3), - array(1, 2, 0), - array(3, 1, 0), - array(0, 1, 2)); - - return $this->rgba($vs[$perm[$i][0]] * 255, - $vs[$perm[$i][1]] * 255, - $vs[$perm[$i][2]] * 255, - $a); - } - - public function hue($color = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to hue must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $c = $color->toHSL(); - return new Less_Tree_Dimension(Less_Parser::round($c['h'])); - } - - public function saturation($color = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to saturation must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $c = $color->toHSL(); - return new Less_Tree_Dimension(Less_Parser::round($c['s'] * 100), '%'); - } - - public function lightness($color = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to lightness must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $c = $color->toHSL(); - return new Less_Tree_Dimension(Less_Parser::round($c['l'] * 100), '%'); - } - - public function hsvhue( $color = null ){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to hsvhue must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsv = $color->toHSV(); - return new Less_Tree_Dimension( Less_Parser::round($hsv['h']) ); - } - - - public function hsvsaturation( $color = null ){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to hsvsaturation must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsv = $color->toHSV(); - return new Less_Tree_Dimension( Less_Parser::round($hsv['s'] * 100), '%' ); - } - - public function hsvvalue( $color = null ){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to hsvvalue must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsv = $color->toHSV(); - return new Less_Tree_Dimension( Less_Parser::round($hsv['v'] * 100), '%' ); - } - - public function red($color = null) { - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to red must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return new Less_Tree_Dimension( $color->rgb[0] ); - } - - public function green($color = null) { - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to green must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return new Less_Tree_Dimension( $color->rgb[1] ); - } - - public function blue($color = null) { - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to blue must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return new Less_Tree_Dimension( $color->rgb[2] ); - } - - public function alpha($color = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to alpha must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $c = $color->toHSL(); - return new Less_Tree_Dimension($c['a']); - } - - public function luma ($color = null) { - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to luma must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return new Less_Tree_Dimension(Less_Parser::round( $color->luma() * $color->alpha * 100), '%'); - } - - public function luminance( $color = null ){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to luminance must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $luminance = - (0.2126 * $color->rgb[0] / 255) - + (0.7152 * $color->rgb[1] / 255) - + (0.0722 * $color->rgb[2] / 255); - - return new Less_Tree_Dimension(Less_Parser::round( $luminance * $color->alpha * 100), '%'); - } - - public function saturate($color = null, $amount = null){ - // filter: saturate(3.2); - // should be kept as is, so check for color - if ($color instanceof Less_Tree_Dimension) { - return null; - } - - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to saturate must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to saturate must be a percentage' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - - $hsl['s'] += $amount->value / 100; - $hsl['s'] = self::clamp($hsl['s']); - - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - /** - * @param Less_Tree_Dimension $amount - */ - public function desaturate($color = null, $amount = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to desaturate must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to desaturate must be a percentage' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - - $hsl['s'] -= $amount->value / 100; - $hsl['s'] = self::clamp($hsl['s']); - - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - - - public function lighten($color = null, $amount=null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to lighten must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to lighten must be a percentage' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - - $hsl['l'] += $amount->value / 100; - $hsl['l'] = self::clamp($hsl['l']); - - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - public function darken($color = null, $amount = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to darken must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to darken must be a percentage' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - $hsl['l'] -= $amount->value / 100; - $hsl['l'] = self::clamp($hsl['l']); - - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - public function fadein($color = null, $amount = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to fadein must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to fadein must be a percentage' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - $hsl['a'] += $amount->value / 100; - $hsl['a'] = self::clamp($hsl['a']); - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - public function fadeout($color = null, $amount = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to fadeout must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to fadeout must be a percentage' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - $hsl['a'] -= $amount->value / 100; - $hsl['a'] = self::clamp($hsl['a']); - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - public function fade($color = null, $amount = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to fade must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to fade must be a percentage' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - - $hsl['a'] = $amount->value / 100; - $hsl['a'] = self::clamp($hsl['a']); - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - - - public function spin($color = null, $amount = null){ - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to spin must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$amount instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The second argument to spin must be a number' . ($amount instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $hsl = $color->toHSL(); - $hue = fmod($hsl['h'] + $amount->value, 360); - - $hsl['h'] = $hue < 0 ? 360 + $hue : $hue; - - return $this->hsla($hsl['h'], $hsl['s'], $hsl['l'], $hsl['a']); - } - - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - - /** - * @param Less_Tree_Color $color1 - */ - public function mix($color1 = null, $color2 = null, $weight = null){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to mix must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to mix must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$weight) { - $weight = new Less_Tree_Dimension('50', '%'); - } - if (!$weight instanceof Less_Tree_Dimension) { - throw new Less_Exception_Compiler('The third argument to contrast must be a percentage' . ($weight instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - $p = $weight->value / 100.0; - $w = $p * 2 - 1; - $hsl1 = $color1->toHSL(); - $hsl2 = $color2->toHSL(); - $a = $hsl1['a'] - $hsl2['a']; - - $w1 = (((($w * $a) == -1) ? $w : ($w + $a) / (1 + $w * $a)) + 1) / 2; - $w2 = 1 - $w1; - - $rgb = array($color1->rgb[0] * $w1 + $color2->rgb[0] * $w2, - $color1->rgb[1] * $w1 + $color2->rgb[1] * $w2, - $color1->rgb[2] * $w1 + $color2->rgb[2] * $w2); - - $alpha = $color1->alpha * $p + $color2->alpha * (1 - $p); - - return new Less_Tree_Color($rgb, $alpha); - } - - public function greyscale($color){ - return $this->desaturate($color, new Less_Tree_Dimension(100,'%')); - } - - - public function contrast( $color, $dark = null, $light = null, $threshold = null){ - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!$color instanceof Less_Tree_Color) { - return null; - } - if( !$light ){ - $light = $this->rgba(255, 255, 255, 1.0); - } - if( !$dark ){ - $dark = $this->rgba(0, 0, 0, 1.0); - } - - if (!$dark instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to contrast must be a color' . ($dark instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$light instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The third argument to contrast must be a color' . ($light instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - //Figure out which is actually light and dark! - if( $dark->luma() > $light->luma() ){ - $t = $light; - $light = $dark; - $dark = $t; - } - if( !$threshold ){ - $threshold = 0.43; - } else { - $threshold = Less_Functions::number($threshold); - } - - if( $color->luma() < $threshold ){ - return $light; - } else { - return $dark; - } - } - - public function e ($str){ - if( is_string($str) ){ - return new Less_Tree_Anonymous($str); - } - return new Less_Tree_Anonymous($str instanceof Less_Tree_JavaScript ? $str->expression : $str->value); - } - - public function escape ($str){ - - $revert = array('%21'=>'!', '%2A'=>'*', '%27'=>"'",'%3F'=>'?','%26'=>'&','%2C'=>',','%2F'=>'/','%40'=>'@','%2B'=>'+','%24'=>'$'); - - return new Less_Tree_Anonymous(strtr(rawurlencode($str->value), $revert)); - } - - - /** - * todo: This function will need some additional work to make it work the same as less.js - * - */ - public function replace( $string, $pattern, $replacement, $flags = null ){ - $result = $string->value; - - $expr = '/'.str_replace('/','\\/',$pattern->value).'/'; - if( $flags && $flags->value){ - $expr .= self::replace_flags($flags->value); - } - - $result = preg_replace($expr,$replacement->value,$result); - - - if( property_exists($string,'quote') ){ - return new Less_Tree_Quoted( $string->quote, $result, $string->escaped); - } - return new Less_Tree_Quoted( '', $result ); - } - - public static function replace_flags($flags){ - $flags = str_split($flags,1); - $new_flags = ''; - - foreach($flags as $flag){ - switch($flag){ - case 'e': - case 'g': - break; - - default: - $new_flags .= $flag; - break; - } - } - - return $new_flags; - } - - public function _percent(){ - $string = func_get_arg(0); - - $args = func_get_args(); - array_shift($args); - $result = $string->value; - - foreach($args as $arg){ - if( preg_match('/%[sda]/i',$result, $token) ){ - $token = $token[0]; - $value = stristr($token, 's') ? $arg->value : $arg->toCSS(); - $value = preg_match('/[A-Z]$/', $token) ? urlencode($value) : $value; - $result = preg_replace('/%[sda]/i',$value, $result, 1); - } - } - $result = str_replace('%%', '%', $result); - - return new Less_Tree_Quoted( $string->quote , $result, $string->escaped); - } - - public function unit( $val, $unit = null) { - if( !($val instanceof Less_Tree_Dimension) ){ - throw new Less_Exception_Compiler('The first argument to unit must be a number' . ($val instanceof Less_Tree_Operation ? '. Have you forgotten parenthesis?' : '.') ); - } - - if( $unit ){ - if( $unit instanceof Less_Tree_Keyword ){ - $unit = $unit->value; - } else { - $unit = $unit->toCSS(); - } - } else { - $unit = ""; - } - return new Less_Tree_Dimension($val->value, $unit ); - } - - public function convert($val, $unit){ - return $val->convertTo($unit->value); - } - - public function round($n, $f = false) { - - $fraction = 0; - if( $f !== false ){ - $fraction = $f->value; - } - - return $this->_math('Less_Parser::round',null, $n, $fraction); - } - - public function pi(){ - return new Less_Tree_Dimension(M_PI); - } - - public function mod($a, $b) { - return new Less_Tree_Dimension( $a->value % $b->value, $a->unit); - } - - - - public function pow($x, $y) { - if( is_numeric($x) && is_numeric($y) ){ - $x = new Less_Tree_Dimension($x); - $y = new Less_Tree_Dimension($y); - }elseif( !($x instanceof Less_Tree_Dimension) || !($y instanceof Less_Tree_Dimension) ){ - throw new Less_Exception_Compiler('Arguments must be numbers'); - } - - return new Less_Tree_Dimension( pow($x->value, $y->value), $x->unit ); - } - - // var mathFunctions = [{name:"ce ... - public function ceil( $n ){ return $this->_math('ceil', null, $n); } - public function floor( $n ){ return $this->_math('floor', null, $n); } - public function sqrt( $n ){ return $this->_math('sqrt', null, $n); } - public function abs( $n ){ return $this->_math('abs', null, $n); } - - public function tan( $n ){ return $this->_math('tan', '', $n); } - public function sin( $n ){ return $this->_math('sin', '', $n); } - public function cos( $n ){ return $this->_math('cos', '', $n); } - - public function atan( $n ){ return $this->_math('atan', 'rad', $n); } - public function asin( $n ){ return $this->_math('asin', 'rad', $n); } - public function acos( $n ){ return $this->_math('acos', 'rad', $n); } - - private function _math() { - $args = func_get_args(); - $fn = array_shift($args); - $unit = array_shift($args); - - if ($args[0] instanceof Less_Tree_Dimension) { - - if( $unit === null ){ - $unit = $args[0]->unit; - }else{ - $args[0] = $args[0]->unify(); - } - $args[0] = (float)$args[0]->value; - return new Less_Tree_Dimension( call_user_func_array($fn, $args), $unit); - } else if (is_numeric($args[0])) { - return call_user_func_array($fn,$args); - } else { - throw new Less_Exception_Compiler("math functions take numbers as parameters"); - } - } - - /** - * @param boolean $isMin - */ - private function _minmax( $isMin, $args ){ - - $arg_count = count($args); - - if( $arg_count < 1 ){ - throw new Less_Exception_Compiler( 'one or more arguments required'); - } - - $j = null; - $unitClone = null; - $unitStatic = null; - - - $order = array(); // elems only contains original argument values. - $values = array(); // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - - - for( $i = 0; $i < $arg_count; $i++ ){ - $current = $args[$i]; - if( !($current instanceof Less_Tree_Dimension) ){ - if( is_array($args[$i]->value) ){ - $args[] = $args[$i]->value; - } - continue; - } - - if( $current->unit->toString() === '' && !$unitClone ){ - $temp = new Less_Tree_Dimension($current->value, $unitClone); - $currentUnified = $temp->unify(); - }else{ - $currentUnified = $current->unify(); - } - - if( $currentUnified->unit->toString() === "" && !$unitStatic ){ - $unit = $unitStatic; - }else{ - $unit = $currentUnified->unit->toString(); - } - - if( $unit !== '' && !$unitStatic || $unit !== '' && $order[0]->unify()->unit->toString() === "" ){ - $unitStatic = $unit; - } - - if( $unit != '' && !$unitClone ){ - $unitClone = $current->unit->toString(); - } - - if( isset($values['']) && $unit !== '' && $unit === $unitStatic ){ - $j = $values['']; - }elseif( isset($values[$unit]) ){ - $j = $values[$unit]; - }else{ - - if( $unitStatic && $unit !== $unitStatic ){ - throw new Less_Exception_Compiler( 'incompatible types'); - } - $values[$unit] = count($order); - $order[] = $current; - continue; - } - - - if( $order[$j]->unit->toString() === "" && $unitClone ){ - $temp = new Less_Tree_Dimension( $order[$j]->value, $unitClone); - $referenceUnified = $temp->unify(); - }else{ - $referenceUnified = $order[$j]->unify(); - } - if( ($isMin && $currentUnified->value < $referenceUnified->value) || (!$isMin && $currentUnified->value > $referenceUnified->value) ){ - $order[$j] = $current; - } - } - - if( count($order) == 1 ){ - return $order[0]; - } - $args = array(); - foreach($order as $a){ - $args[] = $a->toCSS($this->env); - } - return new Less_Tree_Anonymous( ($isMin?'min(':'max(') . implode(Less_Environment::$_outputMap[','],$args).')'); - } - - public function min(){ - $args = func_get_args(); - return $this->_minmax( true, $args ); - } - - public function max(){ - $args = func_get_args(); - return $this->_minmax( false, $args ); - } - - public function getunit($n){ - return new Less_Tree_Anonymous($n->unit); - } - - public function argb($color) { - if (!$color instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to argb must be a color' . ($color instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return new Less_Tree_Anonymous($color->toARGB()); - } - - public function percentage($n) { - return new Less_Tree_Dimension($n->value * 100, '%'); - } - - public function color($n) { - - if( $n instanceof Less_Tree_Quoted ){ - $colorCandidate = $n->value; - $returnColor = Less_Tree_Color::fromKeyword($colorCandidate); - if( $returnColor ){ - return $returnColor; - } - if( preg_match('/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/',$colorCandidate) ){ - return new Less_Tree_Color(substr($colorCandidate, 1)); - } - throw new Less_Exception_Compiler("argument must be a color keyword or 3/6 digit hex e.g. #FFF"); - } else { - throw new Less_Exception_Compiler("argument must be a string"); - } - } - - - public function iscolor($n) { - return $this->_isa($n, 'Less_Tree_Color'); - } - - public function isnumber($n) { - return $this->_isa($n, 'Less_Tree_Dimension'); - } - - public function isstring($n) { - return $this->_isa($n, 'Less_Tree_Quoted'); - } - - public function iskeyword($n) { - return $this->_isa($n, 'Less_Tree_Keyword'); - } - - public function isurl($n) { - return $this->_isa($n, 'Less_Tree_Url'); - } - - public function ispixel($n) { - return $this->isunit($n, 'px'); - } - - public function ispercentage($n) { - return $this->isunit($n, '%'); - } - - public function isem($n) { - return $this->isunit($n, 'em'); - } - - /** - * @param string $unit - */ - public function isunit( $n, $unit ){ - - if( is_object($unit) && property_exists($unit,'value') ){ - $unit = $unit->value; - } - - return ($n instanceof Less_Tree_Dimension) && $n->unit->is($unit) ? new Less_Tree_Keyword('true') : new Less_Tree_Keyword('false'); - } - - /** - * @param string $type - */ - private function _isa($n, $type) { - return is_a($n, $type) ? new Less_Tree_Keyword('true') : new Less_Tree_Keyword('false'); - } - - public function tint($color, $amount = null) { - return $this->mix( $this->rgb(255,255,255), $color, $amount); - } - - public function shade($color, $amount = null) { - return $this->mix($this->rgb(0, 0, 0), $color, $amount); - } - - public function extract($values, $index ){ - $index = (int)$index->value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - if( property_exists($values,'value') && is_array($values->value) ){ - if( isset($values->value[$index]) ){ - return $values->value[$index]; - } - return null; - - }elseif( (int)$index === 0 ){ - return $values; - } - - return null; - } - - public function length($values){ - $n = (property_exists($values,'value') && is_array($values->value)) ? count($values->value) : 1; - return new Less_Tree_Dimension($n); - } - - public function datauri($mimetypeNode, $filePathNode = null ) { - - $filePath = ( $filePathNode ? $filePathNode->value : null ); - $mimetype = $mimetypeNode->value; - - $args = 2; - if( !$filePath ){ - $filePath = $mimetype; - $args = 1; - } - - $filePath = str_replace('\\','/',$filePath); - if( Less_Environment::isPathRelative($filePath) ){ - - if( Less_Parser::$options['relativeUrls'] ){ - $temp = $this->currentFileInfo['currentDirectory']; - } else { - $temp = $this->currentFileInfo['entryPath']; - } - - if( !empty($temp) ){ - $filePath = Less_Environment::normalizePath(rtrim($temp,'/').'/'.$filePath); - } - - } - - - // detect the mimetype if not given - if( $args < 2 ){ - - /* incomplete - $mime = require('mime'); - mimetype = mime.lookup(path); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - */ - - $mimetype = Less_Mime::lookup($filePath); - - $charset = Less_Mime::charsets_lookup($mimetype); - $useBase64 = !in_array($charset,array('US-ASCII', 'UTF-8')); - if( $useBase64 ){ $mimetype .= ';base64'; } - - }else{ - $useBase64 = preg_match('/;base64$/',$mimetype); - } - - - if( file_exists($filePath) ){ - $buf = @file_get_contents($filePath); - }else{ - $buf = false; - } - - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - $DATA_URI_MAX_KB = 32; - $fileSizeInKB = round( strlen($buf) / 1024 ); - if( $fileSizeInKB >= $DATA_URI_MAX_KB ){ - $url = new Less_Tree_Url( ($filePathNode ? $filePathNode : $mimetypeNode), $this->currentFileInfo); - return $url->compile($this); - } - - if( $buf ){ - $buf = $useBase64 ? base64_encode($buf) : rawurlencode($buf); - $filePath = '"data:' . $mimetype . ',' . $buf . '"'; - } - - return new Less_Tree_Url( new Less_Tree_Anonymous($filePath) ); - } - - //svg-gradient - public function svggradient( $direction ){ - - $throw_message = 'svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]'; - $arguments = func_get_args(); - - if( count($arguments) < 3 ){ - throw new Less_Exception_Compiler( $throw_message ); - } - - $stops = array_slice($arguments,1); - $gradientType = 'linear'; - $rectangleDimension = 'x="0" y="0" width="1" height="1"'; - $useBase64 = true; - $directionValue = $direction->toCSS(); - - - switch( $directionValue ){ - case "to bottom": - $gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - $gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - $gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - $gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - $gradientType = "radial"; - $gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - $rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw new Less_Exception_Compiler( "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" ); - } - - $returner = '' . - '' . - '<' . $gradientType . 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' . $gradientDirectionSvg . '>'; - - for( $i = 0; $i < count($stops); $i++ ){ - if( is_object($stops[$i]) && property_exists($stops[$i],'value') ){ - $color = $stops[$i]->value[0]; - $position = $stops[$i]->value[1]; - }else{ - $color = $stops[$i]; - $position = null; - } - - if( !($color instanceof Less_Tree_Color) || (!(($i === 0 || $i+1 === count($stops)) && $position === null) && !($position instanceof Less_Tree_Dimension)) ){ - throw new Less_Exception_Compiler( $throw_message ); - } - if( $position ){ - $positionValue = $position->toCSS(); - }elseif( $i === 0 ){ - $positionValue = '0%'; - }else{ - $positionValue = '100%'; - } - $alpha = $color->alpha; - $returner .= ''; - } - - $returner .= ''; - - - if( $useBase64 ){ - $returner = "'data:image/svg+xml;base64,".base64_encode($returner)."'"; - }else{ - $returner = "'data:image/svg+xml,".$returner."'"; - } - - return new Less_Tree_URL( new Less_Tree_Anonymous( $returner ) ); - } - - - /** - * Php version of javascript's `encodeURIComponent` function - * - * @param string $string The string to encode - * @return string The encoded string - */ - public static function encodeURIComponent($string){ - $revert = array('%21' => '!', '%2A' => '*', '%27' => "'", '%28' => '(', '%29' => ')'); - return strtr(rawurlencode($string), $revert); - } - - - // Color Blending - // ref: http://www.w3.org/TR/compositing-1 - - public function colorBlend( $mode, $color1, $color2 ){ - $ab = $color1->alpha; // backdrop - $as = $color2->alpha; // source - $r = array(); // result - - $ar = $as + $ab * (1 - $as); - for( $i = 0; $i < 3; $i++ ){ - $cb = $color1->rgb[$i] / 255; - $cs = $color2->rgb[$i] / 255; - $cr = call_user_func( $mode, $cb, $cs ); - if( $ar ){ - $cr = ($as * $cs + $ab * ($cb - $as * ($cb + $cs - $cr))) / $ar; - } - $r[$i] = $cr * 255; - } - - return new Less_Tree_Color($r, $ar); - } - - public function multiply($color1 = null, $color2 = null ){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to multiply must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to multiply must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendMultiply'), $color1, $color2 ); - } - - private function colorBlendMultiply($cb, $cs){ - return $cb * $cs; - } - - public function screen($color1 = null, $color2 = null ){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to screen must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to screen must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendScreen'), $color1, $color2 ); - } - - private function colorBlendScreen( $cb, $cs){ - return $cb + $cs - $cb * $cs; - } - - public function overlay($color1 = null, $color2 = null){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to overlay must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to overlay must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendOverlay'), $color1, $color2 ); - } - - private function colorBlendOverlay($cb, $cs ){ - $cb *= 2; - return ($cb <= 1) - ? $this->colorBlendMultiply($cb, $cs) - : $this->colorBlendScreen($cb - 1, $cs); - } - - public function softlight($color1 = null, $color2 = null){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to softlight must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to softlight must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendSoftlight'), $color1, $color2 ); - } - - private function colorBlendSoftlight($cb, $cs ){ - $d = 1; - $e = $cb; - if( $cs > 0.5 ){ - $e = 1; - $d = ($cb > 0.25) ? sqrt($cb) - : ((16 * $cb - 12) * $cb + 4) * $cb; - } - return $cb - (1 - 2 * $cs) * $e * ($d - $cb); - } - - public function hardlight($color1 = null, $color2 = null){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to hardlight must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to hardlight must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendHardlight'), $color1, $color2 ); - } - - private function colorBlendHardlight( $cb, $cs ){ - return $this->colorBlendOverlay($cs, $cb); - } - - public function difference($color1 = null, $color2 = null) { - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to difference must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to difference must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendDifference'), $color1, $color2 ); - } - - private function colorBlendDifference( $cb, $cs ){ - return abs($cb - $cs); - } - - public function exclusion( $color1 = null, $color2 = null ){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to exclusion must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to exclusion must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendExclusion'), $color1, $color2 ); - } - - private function colorBlendExclusion( $cb, $cs ){ - return $cb + $cs - 2 * $cb * $cs; - } - - public function average($color1 = null, $color2 = null){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to average must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to average must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendAverage'), $color1, $color2 ); - } - - // non-w3c functions: - public function colorBlendAverage($cb, $cs ){ - return ($cb + $cs) / 2; - } - - public function negation($color1 = null, $color2 = null ){ - if (!$color1 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The first argument to negation must be a color' . ($color1 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - if (!$color2 instanceof Less_Tree_Color) { - throw new Less_Exception_Compiler('The second argument to negation must be a color' . ($color2 instanceof Less_Tree_Expression ? ' (did you forgot commas?)' : '') ); - } - - return $this->colorBlend( array($this,'colorBlendNegation'), $color1, $color2 ); - } - - public function colorBlendNegation($cb, $cs){ - return 1 - abs($cb + $cs - 1); - } - - // ~ End of Color Blending - -} -- cgit v1.2.3