Add tests for parsing <color> from CSS Color Level 3.

Author: SimonSapin

README.rst

@@ -80,6 +80,28 @@ associated with the expected result.
     The Unicode input is represented by a JSON string,
     the output as a list of `qualified rules`_ or at-rules_.
 
+``color3.json``
+    Tests the ``<color>`` syntax `defined in CSS Color Level 3
+    <http://www.w3.org/TR/css3-color/#colorunits>`_.
+    The Unicode input is represented by a JSON string,
+    the output as one of:
+
+    * null if the input is not a valid color in CSS syntax
+    * The string "currentColor" for the currentColor keyword
+    * An array of length 4 for every other values:
+      four (floating point) numbers for the Red, Green, Blue and Alpha channel.
+      Each value is between 0 and 1.
+
+``color3_hsl.json``
+    Same as ``color3.json``.
+    This file is generated the ``make_color3_hsl.py`` Python script.
+
+``color3_keywords.json``
+    Same as ``color3.json``,
+    except that the values for the Red, Green and Blue channel
+    are between 0 and 255.
+    This file is generated the ``make_color3_keywords.py`` Python script.
+
 
 Result representation
 =====================

color3.json

@@ -0,0 +1,142 @@
+[
+"", null,
+" /* hey */\n", null,
+"4", null,
+"top", null,
+"/**/transparent", [0, 0, 0, 0],
+"transparent", [0, 0, 0, 0],
+" transparent\n", [0, 0, 0, 0],
+"TransParent", [0, 0, 0, 0],
+"currentColor", "currentColor",
+"CURRENTcolor", "currentColor",
+"current-Color", null,
+
+"black", [0, 0, 0, 1],
+"white", [1, 1, 1, 1],
+"fuchsia", [1, 0, 1, 1],
+"cyan", [0, 1, 1, 1],
+"CyAn", [0, 1, 1, 1],
+
+"#", null,
+"#f", null,
+"#ff", null,
+"#fff", [1, 1, 1, 1],
+"#ffg", null,
+"#ffff", null,
+"#fffff", null,
+"#ffffff", [1, 1, 1, 1],
+"#fffffg", null,
+"#fffffff", null,
+"#ffffffff", null,
+"#fffffffff", null,
+
+"#FFCc99", [1, 0.8, 0.6, 1],
+"#369", [0.2, 0.4, 0.6, 1],
+
+"rgb(00, 51, 102)", [0, 0.2, 0.4, 1],
+"r\\gb(00, 51, 102)", [0, 0.2, 0.4, 1],
+"r\\67 b(00, 51, 102)", [0, 0.2, 0.4, 1],
+"RGB(153, 204, 255)", [0.6, 0.8, 1, 1],
+"rgB(0, 0, 0)", [0, 0, 0, 1],
+"rgB(0, 51, 255)", [0, 0.2, 1, 1],
+"rgb(0,51,255)", [0, 0.2, 1, 1],
+"rgb(0\t,  51 ,255)", [0, 0.2, 1, 1],
+"rgb(/* R */0, /* G */51, /* B */255)", [0, 0.2, 1, 1],
+"rgb(-51, 306, 0)", [-0.2, 1.2, 0, 1],
+
+"rgb(42%, 3%, 50%)", [0.42, 0.03, 0.5, 1],
+"RGB(100%, 100%, 100%)", [1, 1, 1, 1],
+"rgB(0%, 0%, 0%)", [0, 0, 0, 1],
+"rgB(10%, 20%, 30%)", [0.1, 0.2, 0.3, 1],
+"rgb(10%,20%,30%)", [0.1, 0.2, 0.3, 1],
+"rgb(10%\t,  20% ,30%)", [0.1, 0.2, 0.3, 1],
+"rgb(/* R */ 10%, /* G */ 20%, /* B */ 30%)", [0.1, 0.2, 0.3, 1],
+"rgb(-12%, 110%, 1400%)", [-0.12, 1.1, 14, 1],
+
+"rgb(10%, 50%, 0)", null,
+"rgb(255, 50%, 0%)", null,
+"rgb(0, 0 0)", null,
+"rgb(0, 0, 0deg)", null,
+"rgb(0, 0, light)", null,
+"rgb()", null,
+"rgb(0)", null,
+"rgb(0, 0)", null,
+"rgb(0, 0, 0, 0)", null,
+"rgb(0%)", null,
+"rgb(0%, 0%)", null,
+"rgb(0%, 0%, 0%, 0%)", null,
+"rgb(0%, 0%, 0%, 0)", null,
+
+"rgba(0, 0, 0, 0)", [0, 0, 0, 0],
+"rgba(204, 0, 102, 0.3)", [0.8, 0, 0.4, 0.3],
+"RGBA(255, 255, 255, 0)", [1, 1, 1, 0],
+"rgBA(0, 51, 255, 1)", [0, 0.2, 1, 1],
+"rgba(0, 51, 255, 1.1)", [0, 0.2, 1, 1],
+"rgba(0, 51, 255, 37)", [0, 0.2, 1, 1],
+"rgba(0, 51, 255, 0.42)", [0, 0.2, 1, 0.42],
+"rgba(0, 51, 255, 0)", [0, 0.2, 1, 0],
+"rgba(0, 51, 255, -0.1)", [0, 0.2, 1, 0],
+"rgba(0, 51, 255, -139)", [0, 0.2, 1, 0],
+
+"rgba(42%, 3%, 50%, 0.3)", [0.42, 0.03, 0.5, 0.3],
+"RGBA(100%, 100%, 100%, 0)", [1, 1, 1, 0],
+"rgBA(0%, 20%, 100%, 1)", [0, 0.2, 1, 1],
+"rgba(0%, 20%, 100%, 1.1)", [0, 0.2, 1, 1],
+"rgba(0%, 20%, 100%, 37)", [0, 0.2, 1, 1],
+"rgba(0%, 20%, 100%, 0.42)", [0, 0.2, 1, 0.42],
+"rgba(0%, 20%, 100%, 0)", [0, 0.2, 1, 0],
+"rgba(0%, 20%, 100%, -0.1)", [0, 0.2, 1, 0],
+"rgba(0%, 20%, 100%, -139)", [0, 0.2, 1, 0],
+
+"rgba(255, 255, 255, 0%)", null,
+"rgba(10%, 50%, 0, 1)", null,
+"rgba(255, 50%, 0%, 1)", null,
+"rgba(0, 0, 0 0)", null,
+"rgba(0, 0, 0, 0deg)", null,
+"rgba(0, 0, 0, light)", null,
+"rgba()", null,
+"rgba(0)", null,
+"rgba(0, 0, 0)", null,
+"rgba(0, 0, 0, 0, 0)", null,
+"rgba(0%)", null,
+"rgba(0%, 0%)", null,
+"rgba(0%, 0%, 0%)", null,
+"rgba(0%, 0%, 0%, 0%)", null,
+"rgba(0%, 0%, 0%, 0%, 0%)", null,
+
+"HSL(0, 0%, 0%)", [0, 0, 0, 1],
+"hsL(0, 100%, 50%)", [1, 0, 0, 1],
+"hsl(60, 100%, 37.5%)", [0.75, 0.75, 0, 1],
+"hsl(780, 100%, 37.5%)", [0.75, 0.75, 0, 1],
+"hsl(-300, 100%, 37.5%)", [0.75, 0.75, 0, 1],
+"hsl(300, 50%, 50%)", [0.75, 0.25, 0.75, 1],
+
+"hsl(10, 50%, 0)", null,
+"hsl(50%, 50%, 0%)", null,
+"hsl(0, 0% 0%)", null,
+"hsl(30deg, 100%, 100%)", null,
+"hsl(0, 0%, light)", null,
+"hsl()", null,
+"hsl(0)", null,
+"hsl(0, 0%)", null,
+"hsl(0, 0%, 0%, 0%)", null,
+
+"HSLA(-300, 100%, 37.5%, 1)", [0.75, 0.75, 0, 1],
+"hsLA(-300, 100%, 37.5%, 12)", [0.75, 0.75, 0, 1],
+"hsla(-300, 100%, 37.5%, 0.2)", [0.75, 0.75, 0, 0.2],
+"hsla(-300, 100%, 37.5%, 0)", [0.75, 0.75, 0, 0],
+"hsla(-300, 100%, 37.5%, -3)", [0.75, 0.75, 0, 0],
+
+"hsla(10, 50%, 0, 1)", null,
+"hsla(50%, 50%, 0%, 1)", null,
+"hsla(0, 0% 0%, 1)", null,
+"hsla(30deg, 100%, 100%, 1)", null,
+"hsla(0, 0%, light, 1)", null,
+"hsla()", null,
+"hsla(0)", null,
+"hsla(0, 0%)", null,
+"hsla(0, 0%, 0%, 50%)", null,
+"hsla(0, 0%, 0%, 1, 0%)", null,
+
+"cmyk(0, 0, 0, 0)", null
+]