defaultVars             Variables used within Makefile generating
                        process
inShell                 Convert R code to the character vector of shell
                        commands evaluating the given R code.
is.rule                 Check if the argument is a valid rule object.
makefile                Generate Makefile from given list of rules
                        ('job').
markdownRule            Rule for building text documents from Markdown
                        files
offlineRule             Rule for requesting manual user action
rRule                   Rule for running R scripts
replaceSuffix           Replace suffix of the given file name with a
                        new extension (suffix)
rmake-package           Makefile generator for R analytical projects
rmakeSkeleton           Prepare existing project for building with
                        _rmake_.
rule                    General creator of an instance of the S3
                        'rmake.rule' class
