Handle surrogate pairs in Html.toHtml()
Bug: 11338711
Change-Id: Ia44187cbfe3db82d6bc11c1ae3a0fb59c0a6d371
diff --git a/core/java/android/text/Html.java b/core/java/android/text/Html.java
index 160c630..f839d52 100644
--- a/core/java/android/text/Html.java
+++ b/core/java/android/text/Html.java
@@ -391,6 +391,15 @@
out.append(">");
} else if (c == '&') {
out.append("&");
+ } else if (c >= 0xD800 && c <= 0xDFFF) {
+ if (c < 0xDC00 && i + 1 < end) {
+ char d = text.charAt(i + 1);
+ if (d >= 0xDC00 && d <= 0xDFFF) {
+ i++;
+ int codepoint = 0x010000 | (int) c - 0xD800 << 10 | (int) d - 0xDC00;
+ out.append("&#").append(codepoint).append(";");
+ }
+ }
} else if (c > 0x7E || c < ' ') {
out.append("&#").append((int) c).append(";");
} else if (c == ' ') {