diff options
| author | Robin Kruppe <robin.kruppe@gmail.com> | 2015-04-25 14:37:18 +0200 |
|---|---|---|
| committer | Robin Kruppe <robin.kruppe@gmail.com> | 2015-04-25 14:38:23 +0200 |
| commit | 702f17566c7f4decdc9cfb4f67a03fe5b10f6454 (patch) | |
| tree | e04b3d10fbac52b1ef333705d0f8a23c69d20f8e /src/doc/reference.md | |
| parent | e9f298082e84a4c7a355d777fce2b4e3347b16e3 (diff) | |
| download | rust-702f17566c7f4decdc9cfb4f67a03fe5b10f6454.tar.gz rust-702f17566c7f4decdc9cfb4f67a03fe5b10f6454.zip | |
Audit reference manual: 3.2 Special unicode productions
Mention non_ascii_idents feature gate and remove unused productions
Diffstat (limited to 'src/doc/reference.md')
| -rw-r--r-- | src/doc/reference.md | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/doc/reference.md b/src/doc/reference.md index 2f7ec6a999e..73a817eded4 100644 --- a/src/doc/reference.md +++ b/src/doc/reference.md @@ -103,12 +103,14 @@ explicit codepoint lists. [^inputformat] ## Special Unicode Productions The following productions in the Rust grammar are defined in terms of Unicode -properties: `ident`, `non_null`, `non_star`, `non_eol`, `non_slash_or_star`, -`non_single_quote` and `non_double_quote`. +properties: `ident`, `non_null`, `non_eol`, `non_single_quote` and `non_double_quote`. ### Identifiers -The `ident` production is any nonempty Unicode string of the following form: +The `ident` production is any nonempty Unicode[^non_ascii_idents] string of the following form: + +[^non_ascii_idents]: Non-ASCII characters in identifiers are currently feature + gated. This is expected to improve soon. - The first character has property `XID_start` - The remaining characters have property `XID_continue` @@ -125,8 +127,6 @@ Some productions are defined by exclusion of particular Unicode characters: - `non_null` is any single Unicode character aside from `U+0000` (null) - `non_eol` is `non_null` restricted to exclude `U+000A` (`'\n'`) -- `non_star` is `non_null` restricted to exclude `U+002A` (`*`) -- `non_slash_or_star` is `non_null` restricted to exclude `U+002F` (`/`) and `U+002A` (`*`) - `non_single_quote` is `non_null` restricted to exclude `U+0027` (`'`) - `non_double_quote` is `non_null` restricted to exclude `U+0022` (`"`) |