blob: 53160a071734ca52c4ef7477849790e6b8b55ae3 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
//! MDX expression (text) occurs in the [text][] content type.
//!
//! ## Grammar
//!
//! MDX expression (text) forms with the following BNF
//! (<small>see [construct][crate::construct] for character groups</small>):
//!
//! ```bnf
//! mdx_expression_text ::= mdx_expression
//!
//! ; See the `partial_mdx_expression` construct for the BNF of that part.
//! ```
//!
//! See [`mdx_expression`][mdx_expression] for more info.
//!
//! ## Tokens
//!
//! * [`MdxTextExpression`][Name::MdxTextExpression]
//! * see [`mdx_expression`][mdx_expression] for more
//!
//! ## Recommendation
//!
//! See [`mdx_expression`][mdx_expression] for recommendations.
//!
//! ## References
//!
//! * [`syntax.js` in `micromark-extension-mdx-expression`](https://github.com/micromark/micromark-extension-mdx-expression/blob/main/packages/micromark-extension-mdx-expression/dev/lib/syntax.js)
//! * [`mdxjs.com`](https://mdxjs.com)
//!
//! [text]: crate::construct::text
//! [mdx_expression]: crate::construct::partial_mdx_expression
use crate::event::Name;
use crate::state::{Name as StateName, State};
use crate::tokenizer::Tokenizer;
/// Start of an MDX expression (text).
///
/// ```markdown
/// > | a {Math.PI} c
/// ^
/// ```
pub fn start(tokenizer: &mut Tokenizer) -> State {
if Some(b'{') == tokenizer.current
&& tokenizer.parse_state.options.constructs.mdx_expression_text
{
tokenizer.tokenize_state.token_1 = Name::MdxTextExpression;
tokenizer.attempt(State::Next(StateName::MdxExpressionTextAfter), State::Nok);
State::Retry(StateName::MdxExpressionStart)
} else {
State::Nok
}
}
/// After expression.
///
/// ```markdown
/// > | a {Math.PI} c
/// ^
/// ```
pub fn after(tokenizer: &mut Tokenizer) -> State {
tokenizer.tokenize_state.token_1 = Name::Data;
State::Ok
}
|
