Export currently internal functions

[Emmanuel Blondel]

Could we export the below functions?

• ignore_comments
• ignore_empty_lines
• parse_dot_line
  In r-geoflow/geoflow#295 I needed to re-use these fonctions to unload workflow environment, using :::, but I now get a note doing R CMD checks. From the ::: documentation, it's not a good best practice and it's suggested to contact maintainer to consider exporting the concerned functions.

Thanks in advance

[Emmanuel Blondel]

@gaborcsardi coming back on this, as it is blocker for geoflow build, where we are now calling these internal functions with .... Would you be in favor of adding this? Let me know, of course I can send a PR for exports/docs to add.
Many thanks in advance

[Gábor Csárdi]

These are pretty small functions, feel free to copy them in your package.

[Emmanuel Blondel]

Thanks!