NAME
SAS::Parser - Parse a SAS program file
SYNOPSIS
use SAS::Parser;
$p = new SAS::Parser;
$p->parse_file('mysas.sas'); # returns a SAS::Parser object
or
$file = shift @ARGV;
$p->parse_file($file, {options});
After parsing, you can access the information stored in the
SAS::Parser object as follows:
@procs = $p->procs(); # get list of procs called
@datasets = $p->datasets(); # get list of datasets created
$macros = $p->macros(); # get string of macros called
DESCRIPTION
SAS::Parser is a base tool for use in writing applications
which deal with .sas programs. It can be used as a
documentation tool, e.g., to extract lists of procedures
used, data sets created, macros used, etc., and produce a
nicely formatted header in a consistent format, or to
produce standard documentation headers for SAS macros. It
can also be used as a pre-processor to a SAS code formatter,
to produce WWW documents, etc. It is not likely to be
useful as a SAS syntex checker without a good deal of
additional work. It does as reasonable a job on SAS macros
as can be expected without being an actual macro processor.
I had written a large number of specialized scripts for some
of these tasks, and found that I was re-doing similar stuff
each time. SAS::Parser is an attempt to bring this to the
next level, where the basic statement parsing can be
assumed, and your application can just work with the info
extracted.
It's just a beginning, and all the rest depends on
writing Perl code making use of SAS::Parser to accomplish
such tasks. See SAS::Header for one such extension.
REQUIREMENTS
Requires Perl 5.002 or better.
Uses Text::Balanced
AUTHOR
Michael Friendly <
[email protected]>
