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Update SassScriptFunctions.php #187

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Update SassScriptFunctions.php #187

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13 changes: 11 additions & 2 deletions script/SassScriptFunctions.php
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Original file line number Diff line number Diff line change
Expand Up @@ -235,6 +235,7 @@ public static function hue($colour)
return new SassNumber($colour->getHue() . 'deg');
}


/**
* Returns the saturation component of a colour.
* @param SassColour $colour The colour
Expand Down Expand Up @@ -522,8 +523,16 @@ public static function complement($colour)
* @see desaturate
*/
public static function grayscale($colour)
{
return self::desaturate($colour, new SassNumber(100));
{
if(ctype_xdigit($colour))
{
return self::desaturate($colour, new SassNumber(100));
}
else
{
return "";
}

}

/**
Expand Down