MathML defaults (#250)

Defaults for MathML, based chiefly on https://w3c.github.io/mathml-docs/mathml-safe-list and discussion in #103.
WICG · Jan 22, 2025 · 17a1956 · 17a1956
1 parent fbdaa30
commit 17a1956
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diff --git a/builtins/safe-default-configuration.json b/builtins/safe-default-configuration.json
@@ -506,6 +506,248 @@
           "namespace": null
         }
       ]
+    },
+    {
+      "name": "math",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "merror",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mfrac",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mi",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mmultiscripts",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mn",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mo",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": [
+        {
+          "name": "form",
+          "namespace": null
+        },
+        {
+          "name": "fence",
+          "namespace": null
+        },
+        {
+          "name": "separator",
+          "namespace": null
+        },
+        {
+          "name": "lspace",
+          "namespace": null
+        },
+        {
+          "name": "rspace",
+          "namespace": null
+        },
+        {
+          "name": "stretchy",
+          "namespace": null
+        },
+        {
+          "name": "symmetric",
+          "namespace": null
+        },
+        {
+          "name": "maxsize",
+          "namespace": null
+        },
+        {
+          "name": "minsize",
+          "namespace": null
+        },
+        {
+          "name": "largeop",
+          "namespace": null
+        },
+        {
+          "name": "movablelimits",
+          "namespace": null
+        }
+      ]
+    },
+    {
+      "name": "mover",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": [
+        {
+          "name": "accent",
+          "namespace": null
+        }
+      ]
+    },
+    {
+      "name": "mpadded",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": [
+        {
+          "name": "width",
+          "namespace": null
+        },
+        {
+          "name": "height",
+          "namespace": null
+        },
+        {
+          "name": "depth",
+          "namespace": null
+        },
+        {
+          "name": "lspace",
+          "namespace": null
+        },
+        {
+          "name": "voffset",
+          "namespace": null
+        }
+      ]
+    },
+    {
+      "name": "mphantom",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mprescripts",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mroot",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mrow",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "ms",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mspace",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": [
+        {
+          "name": "width",
+          "namespace": null
+        },
+        {
+          "name": "height",
+          "namespace": null
+        },
+        {
+          "name": "depth",
+          "namespace": null
+        }
+      ]
+    },
+    {
+      "name": "msqrt",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mstyle",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "msub",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "msubsup",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "msup",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mtable",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mtd",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": [
+        {
+          "name": "columnspan",
+          "namespace": null
+        },
+        {
+          "name": "rowspan",
+          "namespace": null
+        }
+      ]
+    },
+    {
+      "name": "mtext",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "mtr",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
+    },
+    {
+      "name": "munder",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": [
+        {
+          "name": "accentunder",
+          "namespace": null
+        }
+      ]
+    },
+    {
+      "name": "munderover",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": [
+        {
+          "name": "accent",
+          "namespace": null
+        },
+        {
+          "name": "accentunder",
+          "namespace": null
+        }
+      ]
+    },
+    {
+      "name": "semantics",
+      "namespace": "http://www.w3.org/1998/Math/MathML",
+      "attributes": []
     }
   ],
   "attributes": [
@@ -520,6 +762,30 @@
     {
       "name": "title",
       "namespace": null
+    },
+    {
+      "name": "dir",
+      "namespace": null
+    },
+    {
+      "name": "displaystyle",
+      "namespace": null
+    },
+    {
+      "name": "mathbackground",
+      "namespace": null
+    },
+    {
+      "name": "mathcolor",
+      "namespace": null
+    },
+    {
+      "name": "mathsize",
+      "namespace": null
+    },
+    {
+      "name": "scriptlevel",
+      "namespace": null
     }
   ]
 }
diff --git a/builtins/safe-default-configuration.py b/builtins/safe-default-configuration.py
@@ -24,11 +24,17 @@ def main():
         pass
       elif line.startswith("- "):
         current.append({ "name": line[2:], "namespace": None })
-      elif line == "[HTML Global]":
+      elif line.startswith("[") and line.endswith("Global]"):
         current = result["attributes"]
       else:
-        elem = { "name": line, "namespace": "http://www.w3.org/1999/xhtml",
-                 "attributes": [] }
+        if line.startswith("math "):
+          elem = {"name": line[5:],
+                  "namespace": "http://www.w3.org/1998/Math/MathML"}
+        elif line.startswith("svg "):
+          elem = {"name": line[4:], "namespace": "http://www.w3.org/2000/svg"}
+        else:
+          elem = {"name": line, "namespace": "http://www.w3.org/1999/xhtml"}
+        elem["attributes"] = []
         result["elements"].append(elem)
         current = elem["attributes"]
 

diff --git a/builtins/safe-default-configuration.txt b/builtins/safe-default-configuration.txt
@@ -158,7 +158,6 @@ th
 // Purposely omitted.
 
 // SVG: TBD
-// MathML: TDB
 
 // HTML global attributes
 //
@@ -169,3 +168,78 @@ th
 - lang
 - title
 
+// MathML
+// https://w3c.github.io/mathml-core/#mathml-elements-and-attributes
+//
+// See also: https://w3c.github.io/mathml-docs/mathml-safe-list
+
+math math
+math merror
+math mfrac
+math mi
+math mmultiscripts
+math mn
+math mo
+- form
+- fence
+- separator
+- lspace
+- rspace
+- stretchy
+- symmetric
+- maxsize
+- minsize
+- largeop
+- movablelimits
+math mover
+- accent
+math mpadded
+- width
+- height
+- depth
+- lspace
+- voffset
+math mphantom
+math mprescripts
+math mroot
+math mrow
+math ms
+math mspace
+- width
+- height
+- depth
+math msqrt
+math mstyle
+math msub
+math msubsup
+math msup
+math mtable
+math mtd
+- columnspan
+- rowspan
+math mtext
+math mtr
+math munder
+- accentunder
+math munderover
+- accent
+- accentunder
+math semantics
+
+// Purposely omitted:
+// - math annotation
+// - math annotation-xml
+// - math maction
+
+// MathML global attributes
+// https://w3c.github.io/mathml-core/#global-attributes
+//
+// Most are purposely omitted.
+[MathML Global]
+- dir
+- displaystyle
+- mathbackground
+- mathcolor
+- mathsize
+- scriptlevel
+