set proper function name for hsla()

Author: ylafon

org/w3c/css/parser/analyzer/CssParser.java

@@ -8636,7 +8636,7 @@ final public boolean prio() throws ParseException {
             color.setHSLColor(ac, exp);
             {if ("" != null) return color;}
         } else if (funcname.equals("hsla(")) {
-            color.setHSLColor(ac, exp);
+            color.setHSLAColor(ac, exp);
             {if ("" != null) return color;}
         } else if (funcname.equals("hwb(")) {
             color.setHWBColor(ac, exp);

org/w3c/css/parser/analyzer/CssParser.jj

@@ -3708,7 +3708,7 @@ CssValue function() :
 	    color.setHSLColor(ac, exp);
 	    return color;
 	} else if (funcname.equals("hsla(")) {
-	    color.setHSLColor(ac, exp);
+	    color.setHSLAColor(ac, exp);
 	    return color;
         } else if (funcname.equals("hwb(")) {
             color.setHWBColor(ac, exp);

org/w3c/css/values/CssColor.java

@@ -439,15 +439,22 @@ public void setModernRGBColor(ApplContext ac, CssExpression exp)
     }
 
     /**
-     * Parse a HSL color.
-     * format hsl( <percentage>{3} [ / <alpha-value> ]? ) |
-     * hsl( <number>{3} [ / <alpha-value> ]? )
+     * Parse a HSL color
      */
     public void setHSLColor(ApplContext ac, CssExpression exp)
             throws InvalidParamException {
         hsl = HSL.parseHSL(ac, exp, this);
     }
 
+    /**
+     * Parse a HSLA color
+     */
+    public void setHSLAColor(ApplContext ac, CssExpression exp)
+            throws InvalidParamException {
+        hsl = HSL.parseHSL(ac, exp, this);
+        hsl.setFunctionName("hsla");
+    }
+
     /**
      * Parse a RGB color.
      * format #(3-6)<hexnum>

org/w3c/css/values/color/HSL.java

@@ -32,7 +32,7 @@ public class HSL {
     boolean isRelative = false;
     CssColor fromValue;
 
-    static final String functionname = "hsl";
+    String functionname = "hsl";
 
     /**
      * Create a new HSL
@@ -384,6 +384,10 @@ public boolean equals(HSL other) {
         return false;
     }
 
+    public void setFunctionName(String name) {
+        functionname = name;
+    }
+
     /**
      * Returns a string representation of the object.
      */