planning

node_modules/micromark/dist/util/safe-from-int.js

@@ -0,0 +1,26 @@
+'use strict'
+
+var fromCharCode = require('../constant/from-char-code.js')
+
+function safeFromInt(value, base) {
+  var code = parseInt(value, base)
+
+  if (
+    // C0 except for HT, LF, FF, CR, space
+    code < 9 ||
+    code === 11 ||
+    (code > 13 && code < 32) || // Control character (DEL) of the basic block and C1 controls.
+    (code > 126 && code < 160) || // Lone high surrogates and low surrogates.
+    (code > 55295 && code < 57344) || // Noncharacters.
+    (code > 64975 && code < 65008) ||
+    (code & 65535) === 65535 ||
+    (code & 65535) === 65534 || // Out of range
+    code > 1114111
+  ) {
+    return '\uFFFD'
+  }
+
+  return fromCharCode(code)
+}
+
+module.exports = safeFromInt