Entries for unnamed arguments will look like "fname:...\xarg1,...,xargn". All strings within calls to fname except those supplied to the arguments named among xarg1, ..., xargn will be extracted.
To clarify, consider the how we would (redundantly) specify custom_translation_functions for some of the default messagers, gettext, gettextf, and ngettext: custom_translation_functions = list(R = c("gettext:...\domain", "gettextf:fmt|1", "ngettext:msg1|2,msg2|3")).
Seen now:
Looks off