Improve use of Unicode terminology in definition of string

ballerina-platform · Jun 30, 2019 · 2c6c73d · 2c6c73d
1 parent 630c086
commit 2c6c73d
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/lang/spec.html b/lang/spec.html
@@ -455,7 +455,7 @@ <h2 id="values_types">5. Values, types and variables</h2>
   </tr>
   <tr>
    <td>string</td>
-   <td>sequences of Unicode code points</td>
+   <td>sequences of Unicode scalar values</td>
   </tr>
   <tr>
    <td rowspan="7" >basic, structured</td>
@@ -730,9 +730,11 @@ <h4>Strings</h4>
 CodePoint := HexDigit+
 </pre>
 <p>
-A string is an immutable sequence of zero or more Unicode code points. Any code
-point in the Unicode range of 0x0 to 0x10FFFF inclusive is allowed other than
-surrogates (0xD800 to 0xDFFF inclusive).
+A string is an immutable sequence of zero or more Unicode scalar values, where a
+Unicode scalar value is any code point in the Unicode range of 0x0 to 0x10FFFF
+inclusive, other than surrogate code points, which are 0xD800 to 0xDFFF
+inclusive. Note that a string may include Unicode noncharacters, such as 0xFFFE
+and 0xFFFF.
 </p>
 <p>
 In a <code>StringNumericEscape</code>, <code>CodePoint</code> must valid Unicode