This issue has been brought at least twice in R-help: https://stat.ethz.ch/pipermail/r-help/2008-September/173828.html https://stat.ethz.ch/pipermail/r-help/2009-May/197360.html
Looking at the source in src/unix/sys-std.c, it seems that the definition of rl_readline_name as "RCustomCompletion" is made after the readline library has been initialized and the ~/.inputrc file has been read. Typing "C-x C-r" at the R prompt makes the definitions under "$if RCustomCompletion" work, but this is not what one expects the R users to do. Attached below is the trivial patch that seems to fix the problem. Best regards, Rafael Laboissiere
Index: sys-std.c =================================================================== --- sys-std.c (revision 52687) +++ sys-std.c (working copy) @@ -889,10 +889,10 @@ rl_data.readline_eof = 0; rl_data.prev = rl_top; rl_top = &rl_data; - pushReadline(prompt, readline_handler); #ifdef HAVE_RL_COMPLETION_MATCHES initialize_rlcompletion(); #endif + pushReadline(prompt, readline_handler); } else #endif /* HAVE_LIBREADLINE */
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