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Diffstat (limited to '')
| -rw-r--r-- | src/construct/label_start_image.rs | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/src/construct/label_start_image.rs b/src/construct/label_start_image.rs index 2e96977..97231e0 100644 --- a/src/construct/label_start_image.rs +++ b/src/construct/label_start_image.rs @@ -1,4 +1,33 @@ -//! To do +//! Label start (image) is a construct that occurs in the [text][] content +//! type. +//! +//! It forms with the following BNF: +//! +//! ```bnf +//! label_start_image ::= '!' '[' +//! ``` +//! +//! Label start (images) relates to the `<img>` element in HTML. +//! See [*§ 4.8.3 The `img` element*][html-img] in the HTML spec for more info. +//! +//! Whether it contributes an image depends on whether it is followed by a +//! valid [label end][label_end] or not. +//! Without an end, the characters (`![`) are output. +//! +//! ## Tokens +//! +//! * [`LabelImage`][TokenType::LabelImage] +//! * [`LabelImageMarker`][TokenType::LabelImageMarker] +//! * [`LabelMarker`][TokenType::LabelMarker] +//! +//! ## References +//! +//! * [`label-start-image.js` in `micromark`](https://github.com/micromark/micromark/blob/main/packages/micromark-core-commonmark/dev/lib/label-start-image.js) +//! * [*§ 6.4 Images* in `CommonMark`](https://spec.commonmark.org/0.30/#images) +//! +//! [text]: crate::content::text +//! [label_end]: crate::construct::label_end +//! [html-img]: https://html.spec.whatwg.org/multipage/embedded-content.html#the-img-element use super::label_end::resolve_media; use crate::tokenizer::{Code, LabelStart, State, StateFnResult, TokenType, Tokenizer}; |