Tools for modifying md_node objects

Overrides the $ operator so the content and attributes of md_node objects can be read and updated by name. Use node$content to access or replace the children of a block or span node (or the text of a text node), and node$<attr> to read or update an existing node attribute (e.g. level, href, mark).

Only attributes already present on the node may be replaced, and the new value is validated against the same rules used by the corresponding md_block_* / md_span_* constructor. The class and names attributes cannot be set this way.

# S3 method for class 'md_node'
x$name

# S3 method for class 'md_node'
x$name <- value

# S3 method for class 'md_text'
x$name <- value

Arguments

x

An object that inherits from md_node.

name

A character string giving the attribute to access, or "content" to access the node's children / text content.

value

Replacement value for the content or attribute.

Value

A modified md_node object.

Examples

md = md_text_normal("Hello World")
md$content = "Nice to meet you"
md
#> md_text_normal - "Nice to meet you"

md = md_block_ul(
  md_block_li(md_text_normal("bullet 1")),
  md_block_li(md_text_normal("bullet 2"))
)
md$mark = "-"
md$content[[1]]$content[[1]]$content = "first"
to_md(md) |> cat(sep = "\n")
#> - first
#> - bullet 2