diff options
Diffstat (limited to '')
| -rw-r--r-- | src/construct/partial_label.rs | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/construct/partial_label.rs b/src/construct/partial_label.rs index 00d613a..1c1dcec 100644 --- a/src/construct/partial_label.rs +++ b/src/construct/partial_label.rs @@ -1,14 +1,17 @@ -//! Label occurs in [definition][] and label end. +//! Label occurs in [definition][] and [label end][label_end]. //! -//! They’re formed with the following BNF: +//! ## Grammar +//! +//! Label forms with the following BNF +//! (<small>see [construct][crate::construct] for character groups</small>): //! //! ```bnf //! ; Restriction: maximum `999` codes allowed between brackets. //! ; Restriction: no blank lines. -//! ; Restriction: at least 1 non-space and non-eol code must exist. -//! label ::= '[' *( label_text | label_escape ) ']' -//! label_text ::= code - '[' - '\\' - ']' -//! label_escape ::= '\\' [ '[' | '\\' | ']' ] +//! ; Restriction: at least 1 `text` byte must exist. +//! label ::= '[' *(label_byte | label_escape) ']' +//! label_byte ::= code - '[' - '\\' - ']' +//! label_escape ::= '\\' ['[' | '\\' | ']'] //! ``` //! //! The maximum allowed size of the label, without the brackets, is `999` |