walkAST: Walk the Abstract Syntax Tree (AST) of an R Expression

In globals: Identify Global Objects in R Expressions

Walk the Abstract Syntax Tree (AST) of an R Expression

Description

Walk the Abstract Syntax Tree (AST) of an R Expression

Usage

walkAST(
  expr,
  atomic = NULL,
  name = NULL,
  call = NULL,
  pairlist = NULL,
  substitute = FALSE
)

Arguments

expr	R expression.
atomic, name, call, pairlist	single-argument function that takes an atomic, name, call and pairlist expression, respectively. Have to return a valid R expression.
substitute	If TRUE, expr is substitute():ed.

Value

R expression.

globals documentation built on Nov. 22, 2022, 1:10 a.m.