Import An+B tests

Merge commit '3a9b4c76040107e2cb3f15cdc8c7c84efa3aa8c0'

Author: SimonSapin

css-parsing-tests/An+B.json

@@ -0,0 +1,151 @@
+[
+
+"", null,
+"  \n", null,
+
+"odd", [2, 1],
+"even", [2, 0],
+"ödd", null,
+"éven", null,
+" /**/\t OdD /**/\n", [2, 1],
+" /**/\t EveN /**/\n", [2, 0],
+
+
+"3", [0, 3],
+"+2 ", [0, 2],
+" -14 ", [0, -14],
+"+ 2 ", null,
+"- 14 ", null,
+"3.1", null,
+
+"3N", [3, 0],
+"+2N ", [2, 0],
+" -14n ", [-14, 0],
+"+ 2N ", null,
+"- 14N ", null,
+"3.1N", null,
+"3 n", null,
+
+"  N", [1, 0],
+" +n", [1, 0],
+" -n", [-1, 0],
+"+ n", null,
+"- n", null,
+
+
+"3N+1", [3, 1],
+"+2n+1 ", [2, 1],
+" -14n+1 ", [-14, 1],
+"+ 2N+1 ", null,
+"- 14n+1 ", null,
+"3.1n+1", null,
+"3 n+1", null,
+
+"  n+1", [1, 1],
+" +N+1", [1, 1],
+" -n+1", [-1, 1],
+"+ N+1", null,
+"- N+1", null,
+
+"3n-1", [3, -1],
+"+2N-1 ", [2, -1],
+" -14n-1 ", [-14, -1],
+"+ 2N-1 ", null,
+"- 14N-1 ", null,
+"3.1n-1", null,
+"3 n-1", null,
+
+"  n-1", [1, -1],
+" +n-1", [1, -1],
+" -n-1", [-1, -1],
+"+ n-1", null,
+"- n-1", null,
+
+
+"3N +1", [3, 1],
+"+2N +1 ", [2, 1],
+" -14n +1 ", [-14, 1],
+"+ 2N +1 ", null,
+"- 14n +1 ", null,
+"3.1N +1", null,
+"3 n +1", null,
+
+"  n +1", [1, 1],
+" +N +1", [1, 1],
+" -n +1", [-1, 1],
+"+ n +1", null,
+"- N +1", null,
+
+"3N -1", [3, -1],
+"+2n -1 ", [2, -1],
+" -14n -1 ", [-14, -1],
+"+ 2n -1 ", null,
+"- 14N -1 ", null,
+"3.1N -1", null,
+"3 N -1", null,
+
+"  N -1", [1, -1],
+" +N -1", [1, -1],
+" -n -1", [-1, -1],
+"+ n -1", null,
+"- n -1", null,
+
+
+"3n+ 1", [3, 1],
+"+2n+ 1 ", [2, 1],
+" -14n+ 1 ", [-14, 1],
+"+ 2n+ 1 ", null,
+"- 14N+ 1 ", null,
+"3.1n+ 1", null,
+"3 N+ 1", null,
+
+"  N+ 1", [1, 1],
+" +N+ 1", [1, 1],
+" -N+ 1", [-1, 1],
+"+ n+ 1", null,
+"- N+ 1", null,
+
+"3n- 1", [3, -1],
+"+2N- 1 ", [2, -1],
+" -14N- 1 ", [-14, -1],
+"+ 2N- 1 ", null,
+"- 14n- 1 ", null,
+"3.1n- 1", null,
+"3 n- 1", null,
+
+"  N- 1", [1, -1],
+" +N- 1", [1, -1],
+" -n- 1", [-1, -1],
+"+ n- 1", null,
+"- N- 1", null,
+
+
+"3N + 1", [3, 1],
+"+2N + 1 ", [2, 1],
+" -14n + 1 ", [-14, 1],
+"+ 2n + 1 ", null,
+"- 14N + 1 ", null,
+"3.1n + 1", null,
+"3 N + 1", null,
+
+"  n + 1", [1, 1],
+" +n + 1", [1, 1],
+" -N + 1", [-1, 1],
+"+ N + 1", null,
+"- N + 1", null,
+
+"3N - 1", [3, -1],
+"+2n - 1 ", [2, -1],
+" -14n - 1 ", [-14, -1],
+"+ 2N - 1 ", null,
+"- 14N - 1 ", null,
+"3.1N - 1", null,
+"3 n - 1", null,
+
+"  N - 1", [1, -1],
+" +n - 1", [1, -1],
+" -n - 1", [-1, -1],
+"+ N - 1", null,
+"- N - 1", null
+
+]

css-parsing-tests/README.rst

@@ -102,6 +102,17 @@ associated with the expected result.
     are between 0 and 255.
     This file is generated the ``make_color3_keywords.py`` Python script.
 
+``an+b.json``
+    Tests the `an+b <http://dev.w3.org/csswg/css-syntax/#the-anb-type>`_
+    syntax defined in CSS Syntax Level 3.
+    This `differs <http://dev.w3.org/csswg/css-syntax/#changes>`_ from the
+    `nth grammar rule <http://www.w3.org/TR/css3-selectors/#nth-child-pseudo>`_
+    in Selectors Level 3 only in that
+    ``-`` charecters and digits can be escaped in some cases.
+    The Unicode input is represented by a JSON string,
+    the output as null for invalid syntax,
+    or an array of two integers ``[A, B]``.
+
 
 Result representation
 =====================