Import SAS macro source

Import SAS macro source

Usage

import_sas_macro(path)

Arguments

path

A single path to an existing SAS source file. The app requires .sas; this function does not independently check the extension.

Value

A sas_macro list with normalized path, UTF-8 source, macro_names, and parameters character vectors.

Details

Metadata is extracted with regular expressions, not a complete SAS parser. Parameters are taken from the first matched macro declaration. The source is not executed or checked for SAS correctness.

Examples

path <- tempfile(fileext = ".sas")
writeLines("%macro derive_flag(input=, output=); %mend derive_flag;", path)
macro <- import_sas_macro(path)
macro$macro_names
#> [1] "derive_flag"
macro$parameters
#> [1] "input"  "output"
unlink(path)