[Rd] C-API: Reporting syntax errors when calling R_ParseVector()

[Laurent Gautier]

Hi,

The C-API is exposing the function R_ParseVector (defined in the header
file `include/R_exts/Parse.h`), but it still appears impossible to retrieve
errors about syntax errors.

I found earlier reports of the issue, but could not find solutions:
- 2007: https://bugs.r-project.org/bugzilla/show_bug.cgi?id=9466
- 2009: https://stat.ethz.ch/pipermail/r-devel/2009-June/053801.html

Would anyone have a pointer ?


Laurent

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