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Unicode escapes: documentation and grammar

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hryx
2019-07-04 22:52:17 -07:00
parent 6bfa8546bb
commit e35d49c4d0
1 changed files with 4 additions and 9 deletions
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13
doc/langref.html.in
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@@ -566,7 +566,7 @@ test "string literals" {
assert(normal_bytes.len == 5);
assert(normal_bytes[1] == 'e');
assert('e' == '\x65');
assert('\U01f4a9' == 128169);
assert('\u{1f4a9}' == 128169);
assert(mem.eql(u8, "hello", "h\x65llo"));
// A C string literal is a null terminated pointer.
@@ -616,12 +616,8 @@ test "string literals" {
<td>hexadecimal 8-bit character code (2 digits)</td>
</tr>
<tr>
<td><code>\uNNNN</code></td>
<td>hexadecimal 16-bit Unicode character code UTF-8 encoded (4 digits)</td>
</tr>
<tr>
<td><code>\UNNNNNN</code></td>
<td>hexadecimal 24-bit Unicode character code UTF-8 encoded (6 digits)</td>
<td><code>\u{NNNNNN}</code></td>
<td>hexadecimal Unicode character code UTF-8 encoded (1 or more digits)</td>
</tr>
</table>
</div>
@@ -10008,8 +10004,7 @@ eof &lt;- !.
hex &lt;- [0-9a-fA-F]
char_escape
&lt;- "\\x" hex hex
/ "\\u" hex hex hex hex
/ "\\U" hex hex hex hex hex hex
/ "\\u{" hex+ "}"
/ "\\" [nr\\t'"]
char_char
&lt;- char_escape