planning

node_modules/hast-util-to-html/lib/constants.js

@@ -0,0 +1,28 @@
+'use strict'
+
+// Maps of subsets.
+// Each value is a matrix of tuples.
+// The first value causes parse errors, the second is valid.
+// Of both values, the first value is unsafe, and the second is safe.
+module.exports = {
+  // See: <https://html.spec.whatwg.org/#attribute-name-state>.
+  name: [
+    ['\t\n\f\r &/=>'.split(''), '\t\n\f\r "&\'/=>`'.split('')],
+    ['\0\t\n\f\r "&\'/<=>'.split(''), '\0\t\n\f\r "&\'/<=>`'.split('')]
+  ],
+  // See: <https://html.spec.whatwg.org/#attribute-value-(unquoted)-state>.
+  unquoted: [
+    ['\t\n\f\r &>'.split(''), '\0\t\n\f\r "&\'<=>`'.split('')],
+    ['\0\t\n\f\r "&\'<=>`'.split(''), '\0\t\n\f\r "&\'<=>`'.split('')]
+  ],
+  // See: <https://html.spec.whatwg.org/#attribute-value-(single-quoted)-state>.
+  single: [
+    ["&'".split(''), '"&\'`'.split('')],
+    ["\0&'".split(''), '\0"&\'`'.split('')]
+  ],
+  // See: <https://html.spec.whatwg.org/#attribute-value-(double-quoted)-state>.
+  double: [
+    ['"&'.split(''), '"&\'`'.split('')],
+    ['\0"&'.split(''), '\0"&\'`'.split('')]
+  ]
+}