Module markdown 

CommonMark and GitHub Flavored Markdown highlighter and interactive hook.

Lives at src/batteries/markdown/; this shim keeps the public path twrite_core::markdown stable regardless of file layout. CommonMark and GitHub Flavored Markdown battery: highlighter and interactive hook.

The battery is split into focused modules (promoted from a single batteries/markdown.rs once it outgrew one file, per the registry contract in crate::batteries):

• [config]: MarkdownConfig / ConcealMode shared settings.
• [table]: GFM pipe-table detection (blocks, pipes, delimiter rows).
• [highlight]: MarkdownHighlighter (SyntaxHighlighter impl).
• hook: MarkdownHook (EditorHook impl: shortcuts, lists, tables).
• [links]: single-line hyperlink extraction shared by highlighting and click handling.

Everything here is built only on the public core API (SyntaxHighlighter, EditorHook, HighlightTag, ConcealedLine, …) and emits only existing HighlightTag variants plus Custom("markdown.table.*") names, so no twrite-gpui-side code is required.

Structs

MarkdownConfig

Configuration settings for Markdown editing, highlighting, and WYSIWYG rendering.

MarkdownHighlighter

A syntax highlighter for CommonMark and GFM Markdown documents using pulldown-cmark.

MarkdownHook

An editor hook providing Markdown shortcuts (Ctrl+B, Ctrl+I, Ctrl+K), smart list continuation, and task list toggles.

TableBlock

A contiguous GFM pipe-table block: header + delimiter + 0..N body rows.

TableLayout

Display-column widths for one TableBlock, measured on unconcealed source cell content so widths stay stable as the cursor moves (inactive rows conceal markers; per-row padding absorbs the difference and pipes still align everywhere).

Enums

ConcealMode

Display mode for markdown syntax delimiters (like # , **, *, ~~, `) on inactive lines.

TableAlignment

Column alignment parsed from a GFM delimiter cell (---, :--, --:, :-:).

TableRowKind

Which row of a TableBlock a buffer row is.

Constants

TABLE_CELL_TAG

Custom tag for GFM table body cell content.

TABLE_DELIMITER_TAG

Custom tag for GFM table delimiter rows (| --- | :-: |).

TABLE_HEADER_TAG

Custom highlight tag names emitted for GFM tables.

Functions

extract_markdown_links

Extracts all markdown hyperlink destinations and their label character ranges from a single line.

fence_rows

Collects every fence-marker row in a single linear pass.

find_unescaped_pipes

Byte offsets of cell-separator pipes in line.

is_fenced_row

Returns whether row sits inside a fenced code block.

parse_delimiter_row

Parses a GFM delimiter row into per-column alignments.

split_table_cells

Splits line into cell-content byte ranges plus separator pipe offsets.

table_block_at

Locates the GFM pipe-table block containing row, if any.

table_block_at_with_fences

table_block_at with a caller-provided fence index.

table_layouts

Finds every table block in the buffer with its measured TableLayout.

table_layouts_with_fences

table_layouts with a caller-provided fence index.