No dollar-sign math

Uses \eqn for inline math

Uses \deqn for display math

Two-arg inline form

Two-arg display form

ASCII fallback readable

Symbol definitions

No raw LaTeX in math text

Verification uses Rd2txt

Verification uses parse_Rd + checkRd

\describe two-arg items

No two-arg item in \itemize

\tabular used for table

\tab column separator

\cr row terminator

\preformatted for example output

Multiple @details blocks

Custom section present

\tabular column alignment spec

Markdown heading placement

Uses parse_Rd()

vapply tag extraction

Uses which() for filtering

trimws+paste+unlist extraction

No partial parsing

fragment=TRUE for rendering

class set to Rd before render

Processes all three Rd files

Handles multiple-alias file

Programmatic file discovery