Editing infobar applies changes to buffer

src/basic/string16.cpp

@@ -150,3 +150,42 @@ String16 CutPostfix(String16 *string, int64_t len) {
     *string         = Chop(*string, len);
     return result;
 }
+
+String16 Trim(String16 string) {
+    if (string.len == 0)
+        return string;
+
+    int64_t whitespace_begin = 0;
+    for (; whitespace_begin < string.len; whitespace_begin++) {
+        if (!IsWhitespace(string.data[whitespace_begin])) {
+            break;
+        }
+    }
+
+    int64_t whitespace_end = string.len;
+    for (; whitespace_end != whitespace_begin; whitespace_end--) {
+        if (!IsWhitespace(string.data[whitespace_end - 1])) {
+            break;
+        }
+    }
+
+    if (whitespace_begin == whitespace_end) {
+        string.len = 0;
+    } else {
+        string = GetSlice(string, whitespace_begin, whitespace_end);
+    }
+
+    return string;
+}
+
+String16 TrimEnd(String16 string) {
+    int64_t whitespace_end = string.len;
+    for (; whitespace_end != 0; whitespace_end--) {
+        if (!IsWhitespace(string.data[whitespace_end - 1])) {
+            break;
+        }
+    }
+
+    String16 result = GetPrefix(string, whitespace_end);
+    return result;
+}