summaryrefslogtreecommitdiffstats
path: root/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS
diff options
context:
space:
mode:
Diffstat (limited to '3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS')
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/AlphaValue.php55
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php198
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/BackgroundPosition.php290
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Border.php99
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Color.php183
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Composite.php86
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/DenyElementDecorator.php72
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Filter.php131
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Font.php325
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/FontFamily.php416
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Ident.php56
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/ImportantDecorator.php96
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Length.php124
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/ListStyle.php190
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Multiple.php129
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Number.php153
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php94
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/TextDecoration.php84
-rw-r--r--3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/URI.php135
19 files changed, 1633 insertions, 1283 deletions
diff --git a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/AlphaValue.php b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/AlphaValue.php
index 93db63f2c..af2b83dff 100644
--- a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/AlphaValue.php
+++ b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/AlphaValue.php
@@ -1,21 +1,34 @@
-<?php
-
-class HTMLPurifier_AttrDef_CSS_AlphaValue extends HTMLPurifier_AttrDef_CSS_Number
-{
-
- public function __construct() {
- parent::__construct(false); // opacity is non-negative, but we will clamp it
- }
-
- public function validate($number, $config, $context) {
- $result = parent::validate($number, $config, $context);
- if ($result === false) return $result;
- $float = (float) $result;
- if ($float < 0.0) $result = '0';
- if ($float > 1.0) $result = '1';
- return $result;
- }
-
-}
-
-// vim: et sw=4 sts=4
+<?php
+
+class HTMLPurifier_AttrDef_CSS_AlphaValue extends HTMLPurifier_AttrDef_CSS_Number
+{
+
+ public function __construct()
+ {
+ parent::__construct(false); // opacity is non-negative, but we will clamp it
+ }
+
+ /**
+ * @param string $number
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return string
+ */
+ public function validate($number, $config, $context)
+ {
+ $result = parent::validate($number, $config, $context);
+ if ($result === false) {
+ return $result;
+ }
+ $float = (float)$result;
+ if ($float < 0.0) {
+ $result = '0';
+ }
+ if ($float > 1.0) {
+ $result = '1';
+ }
+ return $result;
+ }
+}
+
+// vim: et sw=4 sts=4
diff --git a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php
index dd2804038..7f1ea3b0f 100644
--- a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php
+++ b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php
@@ -1,87 +1,111 @@
-<?php
-
-/**
- * Validates shorthand CSS property background.
- * @warning Does not support url tokens that have internal spaces.
- */
-class HTMLPurifier_AttrDef_CSS_Background extends HTMLPurifier_AttrDef
-{
-
- /**
- * Local copy of component validators.
- * @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.
- */
- protected $info;
-
- public function __construct($config) {
- $def = $config->getCSSDefinition();
- $this->info['background-color'] = $def->info['background-color'];
- $this->info['background-image'] = $def->info['background-image'];
- $this->info['background-repeat'] = $def->info['background-repeat'];
- $this->info['background-attachment'] = $def->info['background-attachment'];
- $this->info['background-position'] = $def->info['background-position'];
- }
-
- public function validate($string, $config, $context) {
-
- // regular pre-processing
- $string = $this->parseCDATA($string);
- if ($string === '') return false;
-
- // munge rgb() decl if necessary
- $string = $this->mungeRgb($string);
-
- // assumes URI doesn't have spaces in it
- $bits = explode(' ', $string); // bits to process
-
- $caught = array();
- $caught['color'] = false;
- $caught['image'] = false;
- $caught['repeat'] = false;
- $caught['attachment'] = false;
- $caught['position'] = false;
-
- $i = 0; // number of catches
- $none = false;
-
- foreach ($bits as $bit) {
- if ($bit === '') continue;
- foreach ($caught as $key => $status) {
- if ($key != 'position') {
- if ($status !== false) continue;
- $r = $this->info['background-' . $key]->validate($bit, $config, $context);
- } else {
- $r = $bit;
- }
- if ($r === false) continue;
- if ($key == 'position') {
- if ($caught[$key] === false) $caught[$key] = '';
- $caught[$key] .= $r . ' ';
- } else {
- $caught[$key] = $r;
- }
- $i++;
- break;
- }
- }
-
- if (!$i) return false;
- if ($caught['position'] !== false) {
- $caught['position'] = $this->info['background-position']->
- validate($caught['position'], $config, $context);
- }
-
- $ret = array();
- foreach ($caught as $value) {
- if ($value === false) continue;
- $ret[] = $value;
- }
-
- if (empty($ret)) return false;
- return implode(' ', $ret);
-
- }
-
-}
-
-// vim: et sw=4 sts=4
+<?php
+
+/**
+ * Validates shorthand CSS property background.
+ * @warning Does not support url tokens that have internal spaces.
+ */
+class HTMLPurifier_AttrDef_CSS_Background extends HTMLPurifier_AttrDef
+{
+
+ /**
+ * Local copy of component validators.
+ * @type HTMLPurifier_AttrDef[]
+ * @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.
+ */
+ protected $info;
+
+ /**
+ * @param HTMLPurifier_Config $config
+ */
+ public function __construct($config)
+ {
+ $def = $config->getCSSDefinition();
+ $this->info['background-color'] = $def->info['background-color'];
+ $this->info['background-image'] = $def->info['background-image'];
+ $this->info['background-repeat'] = $def->info['background-repeat'];
+ $this->info['background-attachment'] = $def->info['background-attachment'];
+ $this->info['background-position'] = $def->info['background-position'];
+ }
+
+ /**
+ * @param string $string
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return bool|string
+ */
+ public function validate($string, $config, $context)
+ {
+ // regular pre-processing
+ $string = $this->parseCDATA($string);
+ if ($string === '') {
+ return false;
+ }
+
+ // munge rgb() decl if necessary
+ $string = $this->mungeRgb($string);
+
+ // assumes URI doesn't have spaces in it
+ $bits = explode(' ', $string); // bits to process
+
+ $caught = array();
+ $caught['color'] = false;
+ $caught['image'] = false;
+ $caught['repeat'] = false;
+ $caught['attachment'] = false;
+ $caught['position'] = false;
+
+ $i = 0; // number of catches
+
+ foreach ($bits as $bit) {
+ if ($bit === '') {
+ continue;
+ }
+ foreach ($caught as $key => $status) {
+ if ($key != 'position') {
+ if ($status !== false) {
+ continue;
+ }
+ $r = $this->info['background-' . $key]->validate($bit, $config, $context);
+ } else {
+ $r = $bit;
+ }
+ if ($r === false) {
+ continue;
+ }
+ if ($key == 'position') {
+ if ($caught[$key] === false) {
+ $caught[$key] = '';
+ }
+ $caught[$key] .= $r . ' ';
+ } else {
+ $caught[$key] = $r;
+ }
+ $i++;
+ break;
+ }
+ }
+
+ if (!$i) {
+ return false;
+ }
+ if ($caught['position'] !== false) {
+ $caught['position'] = $this->info['background-position']->
+ validate($caught['position'], $config, $context);
+ }
+
+ $ret = array();
+ foreach ($caught as $value) {
+ if ($value === false) {
+ continue;
+ }
+ $ret[] = $value;
+ }
+
+ if (empty($ret)) {
+ return false;
+ }
+ return implode(' ', $ret);
+ }
+}
+
+// vim: et sw=4 sts=4
diff --git a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/BackgroundPosition.php b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/BackgroundPosition.php
index 6627218e1..4580ef5a9 100644
--- a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/BackgroundPosition.php
+++ b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/BackgroundPosition.php
@@ -1,133 +1,157 @@
-<?php
-
-/* W3C says:
- [ // adjective and number must be in correct order, even if
- // you could switch them without introducing ambiguity.
- // some browsers support that syntax
- [
- <percentage> | <length> | left | center | right
- ]
- [
- <percentage> | <length> | top | center | bottom
- ]?
- ] |
- [ // this signifies that the vertical and horizontal adjectives
- // can be arbitrarily ordered, however, there can only be two,
- // one of each, or none at all
- [
- left | center | right
- ] ||
- [
- top | center | bottom
- ]
- ]
- top, left = 0%
- center, (none) = 50%
- bottom, right = 100%
-*/
-
-/* QuirksMode says:
- keyword + length/percentage must be ordered correctly, as per W3C
-
- Internet Explorer and Opera, however, support arbitrary ordering. We
- should fix it up.
-
- Minor issue though, not strictly necessary.
-*/
-
-// control freaks may appreciate the ability to convert these to
-// percentages or something, but it's not necessary
-
-/**
- * Validates the value of background-position.
- */
-class HTMLPurifier_AttrDef_CSS_BackgroundPosition extends HTMLPurifier_AttrDef
-{
-
- protected $length;
- protected $percentage;
-
- public function __construct() {
- $this->length = new HTMLPurifier_AttrDef_CSS_Length();
- $this->percentage = new HTMLPurifier_AttrDef_CSS_Percentage();
- }
-
- public function validate($string, $config, $context) {
- $string = $this->parseCDATA($string);
- $bits = explode(' ', $string);
-
- $keywords = array();
- $keywords['h'] = false; // left, right
- $keywords['v'] = false; // top, bottom
- $keywords['ch'] = false; // center (first word)
- $keywords['cv'] = false; // center (second word)
- $measures = array();
-
- $i = 0;
-
- $lookup = array(
- 'top' => 'v',
- 'bottom' => 'v',
- 'left' => 'h',
- 'right' => 'h',
- 'center' => 'c'
- );
-
- foreach ($bits as $bit) {
- if ($bit === '') continue;
-
- // test for keyword
- $lbit = ctype_lower($bit) ? $bit : strtolower($bit);
- if (isset($lookup[$lbit])) {
- $status = $lookup[$lbit];
- if ($status == 'c') {
- if ($i == 0) {
- $status = 'ch';
- } else {
- $status = 'cv';
- }
- }
- $keywords[$status] = $lbit;
- $i++;
- }
-
- // test for length
- $r = $this->length->validate($bit, $config, $context);
- if ($r !== false) {
- $measures[] = $r;
- $i++;
- }
-
- // test for percentage
- $r = $this->percentage->validate($bit, $config, $context);
- if ($r !== false) {
- $measures[] = $r;
- $i++;
- }
-
- }
-
- if (!$i) return false; // no valid values were caught
-
- $ret = array();
-
- // first keyword
- if ($keywords['h']) $ret[] = $keywords['h'];
- elseif ($keywords['ch']) {
- $ret[] = $keywords['ch'];
- $keywords['cv'] = false; // prevent re-use: center = center center
- }
- elseif (count($measures)) $ret[] = array_shift($measures);
-
- if ($keywords['v']) $ret[] = $keywords['v'];
- elseif ($keywords['cv']) $ret[] = $keywords['cv'];
- elseif (count($measures)) $ret[] = array_shift($measures);
-
- if (empty($ret)) return false;
- return implode(' ', $ret);
-
- }
-
-}
-
-// vim: et sw=4 sts=4
+<?php
+
+/* W3C says:
+ [ // adjective and number must be in correct order, even if
+ // you could switch them without introducing ambiguity.
+ // some browsers support that syntax
+ [
+ <percentage> | <length> | left | center | right
+ ]
+ [
+ <percentage> | <length> | top | center | bottom
+ ]?
+ ] |
+ [ // this signifies that the vertical and horizontal adjectives
+ // can be arbitrarily ordered, however, there can only be two,
+ // one of each, or none at all
+ [
+ left | center | right
+ ] ||
+ [
+ top | center | bottom
+ ]
+ ]
+ top, left = 0%
+ center, (none) = 50%
+ bottom, right = 100%
+*/
+
+/* QuirksMode says:
+ keyword + length/percentage must be ordered correctly, as per W3C
+
+ Internet Explorer and Opera, however, support arbitrary ordering. We
+ should fix it up.
+
+ Minor issue though, not strictly necessary.
+*/
+
+// control freaks may appreciate the ability to convert these to
+// percentages or something, but it's not necessary
+
+/**
+ * Validates the value of background-position.
+ */
+class HTMLPurifier_AttrDef_CSS_BackgroundPosition extends HTMLPurifier_AttrDef
+{
+
+ /**
+ * @type HTMLPurifier_AttrDef_CSS_Length
+ */
+ protected $length;
+
+ /**
+ * @type HTMLPurifier_AttrDef_CSS_Percentage
+ */
+ protected $percentage;
+
+ public function __construct()
+ {
+ $this->length = new HTMLPurifier_AttrDef_CSS_Length();
+ $this->percentage = new HTMLPurifier_AttrDef_CSS_Percentage();
+ }
+
+ /**
+ * @param string $string
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return bool|string
+ */
+ public function validate($string, $config, $context)
+ {
+ $string = $this->parseCDATA($string);
+ $bits = explode(' ', $string);
+
+ $keywords = array();
+ $keywords['h'] = false; // left, right
+ $keywords['v'] = false; // top, bottom
+ $keywords['ch'] = false; // center (first word)
+ $keywords['cv'] = false; // center (second word)
+ $measures = array();
+
+ $i = 0;
+
+ $lookup = array(
+ 'top' => 'v',
+ 'bottom' => 'v',
+ 'left' => 'h',
+ 'right' => 'h',
+ 'center' => 'c'
+ );
+
+ foreach ($bits as $bit) {
+ if ($bit === '') {
+ continue;
+ }
+
+ // test for keyword
+ $lbit = ctype_lower($bit) ? $bit : strtolower($bit);
+ if (isset($lookup[$lbit])) {
+ $status = $lookup[$lbit];
+ if ($status == 'c') {
+ if ($i == 0) {
+ $status = 'ch';
+ } else {
+ $status = 'cv';
+ }
+ }
+ $keywords[$status] = $lbit;
+ $i++;
+ }
+
+ // test for length
+ $r = $this->length->validate($bit, $config, $context);
+ if ($r !== false) {
+ $measures[] = $r;
+ $i++;
+ }
+
+ // test for percentage
+ $r = $this->percentage->validate($bit, $config, $context);
+ if ($r !== false) {
+ $measures[] = $r;
+ $i++;
+ }
+ }
+
+ if (!$i) {
+ return false;
+ } // no valid values were caught
+
+ $ret = array();
+
+ // first keyword
+ if ($keywords['h']) {
+ $ret[] = $keywords['h'];
+ } elseif ($keywords['ch']) {
+ $ret[] = $keywords['ch'];
+ $keywords['cv'] = false; // prevent re-use: center = center center
+ } elseif (count($measures)) {
+ $ret[] = array_shift($measures);
+ }
+
+ if ($keywords['v']) {
+ $ret[] = $keywords['v'];
+ } elseif ($keywords['cv']) {
+ $ret[] = $keywords['cv'];
+ } elseif (count($measures)) {
+ $ret[] = array_shift($measures);
+ }
+
+ if (empty($ret)) {
+ return false;
+ }
+ return implode(' ', $ret);
+ }
+}
+
+// vim: et sw=4 sts=4
diff --git a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Border.php b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Border.php
index c3e279fc4..16243ba1e 100644
--- a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Border.php
+++ b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Border.php
@@ -1,43 +1,56 @@
-<?php
-
-/**
- * Validates the border property as defined by CSS.
- */
-class HTMLPurifier_AttrDef_CSS_Border extends HTMLPurifier_AttrDef
-{
-
- /**
- * Local copy of properties this property is shorthand for.
- */
- protected $info = array();
-
- public function __construct($config) {
- $def = $config->getCSSDefinition();
- $this->info['border-width'] = $def->info['border-width'];
- $this->info['border-style'] = $def->info['border-style'];
- $this->info['border-top-color'] = $def->info['border-top-color'];
- }
-
- public function validate($string, $config, $context) {
- $string = $this->parseCDATA($string);
- $string = $this->mungeRgb($string);
- $bits = explode(' ', $string);
- $done = array(); // segments we've finished
- $ret = ''; // return value
- foreach ($bits as $bit) {
- foreach ($this->info as $propname => $validator) {
- if (isset($done[$propname])) continue;
- $r = $validator->validate($bit, $config, $context);
- if ($r !== false) {
- $ret .= $r . ' ';
- $done[$propname] = true;
- break;
- }
- }
- }
- return rtrim($ret);
- }
-
-}
-
-// vim: et sw=4 sts=4
+<?php
+
+/**
+ * Validates the border property as defined by CSS.
+ */
+class HTMLPurifier_AttrDef_CSS_Border extends HTMLPurifier_AttrDef
+{
+
+ /**
+ * Local copy of properties this property is shorthand for.
+ * @type HTMLPurifier_AttrDef[]
+ */
+ protected $info = array();
+
+ /**
+ * @param HTMLPurifier_Config $config
+ */
+ public function __construct($config)
+ {
+ $def = $config->getCSSDefinition();
+ $this->info['border-width'] = $def->info['border-width'];
+ $this->info['border-style'] = $def->info['border-style'];
+ $this->info['border-top-color'] = $def->info['border-top-color'];
+ }
+
+ /**
+ * @param string $string
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return bool|string
+ */
+ public function validate($string, $config, $context)
+ {
+ $string = $this->parseCDATA($string);
+ $string = $this->mungeRgb($string);
+ $bits = explode(' ', $string);
+ $done = array(); // segments we've finished
+ $ret = ''; // return value
+ foreach ($bits as $bit) {
+ foreach ($this->info as $propname => $validator) {
+ if (isset($done[$propname])) {
+ continue;
+ }
+ $r = $validator->validate($bit, $config, $context);
+ if ($r !== false) {
+ $ret .= $r . ' ';
+ $done[$propname] = true;
+ break;
+ }
+ }
+ }
+ return rtrim($ret);
+ }
+}
+
+// vim: et sw=4 sts=4
diff --git a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Color.php b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Color.php
index ec999d652..16d2a6b98 100644
--- a/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Color.php
+++ b/3rdparty/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Color.php
@@ -1,78 +1,105 @@
-<?php
-
-/**
- * Validates Color as defined by CSS.
- */
-class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
-{
-
- public function validate($color, $config, $context) {
-
- static $colors = null;
- if ($colors === null) $colors = $config->get('Core.ColorKeywords');
-
- $color = trim($color);
- if ($color === '') return false;
-
- $lower = strtolower($color);
- if (isset($colors[$lower])) return $colors[$lower];
-
- if (strpos($color, 'rgb(') !== false) {
- // rgb literal handling
- $length = strlen($color);
- if (strpos($color, ')') !== $length - 1) return false;
- $triad = substr($color, 4, $length - 4 - 1);
- $parts = explode(',', $triad);
- if (count($parts) !== 3) return false;
- $type = false; // to ensure that they're all the same type
- $new_parts = array();
- foreach ($parts as $part) {
- $part = trim($part);
- if ($part === '') return false;
- $length = strlen($part);
- if ($part[$length - 1] === '%') {
- // handle percents
- if (!$type) {
- $type = 'percentage';
- } elseif ($type !== 'percentage') {
- return false;
- }
- $num = (float) substr($part, 0, $length - 1);
- if ($num < 0) $num = 0;
- if ($num > 100) $num = 100;
- $new_parts[] = "$num%";
- } else {
- // handle integers
- if (!$type) {
- $type = 'integer';
- } elseif ($type !== 'integer') {
- return false;
- }
- $num = (int) $part;
- if ($num < 0) $num = 0;
- if ($num > 255) $num = 255;
- $new_parts[] = (string) $num;
- }
- }
- $new_triad = implode(',', $new_parts);
- $color = "rgb($new_triad)";
- } else {
- // hexadecimal handling
- if ($color[0] === '#') {
- $hex = substr($color, 1);
- } else {
- $hex = $color;
- $color = '#' . $color;
- }
- $length = strlen($hex);
- if ($length !== 3 && $length !== 6) return false;
- if (!ctype_xdigit($hex)) return false;
- }
-
- return $color;
-
- }
-
-}
-
-// vim: et sw=4 sts=4
+<?php
+
+/**
+ * Validates Color as defined by CSS.
+ */
+class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
+{
+
+ /**
+ * @param string $color
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return bool|string
+ */
+ public function validate($color, $config, $context)
+ {
+ static $colors = null;
+ if ($colors === null) {
+ $colors = $config->get('Core.ColorKeywords');
+ }
+
+ $color = trim($color);
+ if ($color === '') {
+ return false;
+ }
+
+ $lower = strtolower($color);
+ if (isset($colors[$lower])) {
+ return $colors[$lower];
+ }
+
+ if (strpos($color, 'rgb(') !== false) {
+ // rgb literal handling
+ $length = strlen($color);
+ if (strpos($color, ')') !== $length - 1) {
+ return false;
+ }
+ $triad = substr($color, 4, $length - 4 - 1);
+ $parts = explode(',', $triad);
+ if (count($parts) !== 3) {
+ return false;
+ }
+ $type = false; // to ensure that they're all the same type
+ $new_parts = array();
+ foreach ($parts as $part) {
+ $part = trim($part);
+ if ($part === '') {
+ return false;
+ }
+ $length = strlen($part);
+ if ($part[$length - 1] === '%') {
+ // handle percents
+ if (!$type) {
+ $type = 'percentage';
+ } elseif ($type !== 'percentage') {
+ return false;
+ }
+ $num = (float)substr($part, 0, $length - 1);
+ if ($num < 0) {
+ $num = 0;
+ }
+ if ($num > 100) {
+ $num = 100;
+ }
+ $new_parts[] = "$num%";
+ } else {
+ // handle integers
+ if (!$type) {
+ $type = 'integer';
+ } elseif ($type !== 'integer') {
+ return false;
+ }
+ $num = (int)$part;
+ if ($num <