rmd_classes_s7: S7 Class Definitions for RMD Nodes

In parsermd: Formal Parser and Related Tools for R Markdown Documents

S7 Class Definitions for RMD Nodes

Description

S7 classes for representing R Markdown AST nodes with automatic validation. All classes inherit from the base rmd_node class and provide type-safe object creation with built-in validation of properties.

Usage

rmd_node()

rmd_ast(nodes = list())

rmd_yaml(yaml = list())

Arguments

nodes	List of rmd_node objects for the AST container
yaml	List containing YAML frontmatter content

Details

The following S7 classes are available for creating R Markdown AST nodes:

Core Classes

• rmd_node() - Abstract base class for all R Markdown AST nodes. This is the parent class for all specific node types and should not be instantiated directly.

• rmd_ast() - Container for multiple nodes representing a complete document AST.

Content Nodes

• rmd_yaml() - YAML frontmatter header containing document metadata.

• rmd_chunk() - Code chunks with executable code in various engines (R, Python, etc.).

• rmd_raw_chunk() - Raw code chunks that are not executed.

• rmd_markdown() - Plain markdown text content.

• rmd_heading() - Section headings at various levels (1-6).

Code and Inline Elements

• rmd_code_block() - Fenced code blocks without execution.

• rmd_code_block_literal() - Code blocks with literal {{...}} attributes.

• rmd_inline_code() - Inline code spans within markdown text.

• rmd_shortcode() - Quarto/Pandoc shortcodes for special functionality.

• rmd_span() - Generic inline spans with attributes.

Structural Elements

• rmd_fenced_div_open() - Opening tags for fenced divs (:::).

• rmd_fenced_div_close() - Closing tags for fenced divs (:::).

See Also

rmd_node_utilities for utility functions that work with these S7 objects

parsermd documentation built on Aug. 21, 2025, 5:27 p.m.