> The TL;DR version is base R support for a `+.character` method. This > would essentially provide a shortcut to `paste0`...
In pqR (see pqR-project.org), I have implemented ! and !! as binary string concatenation operators, equivalent to paste0 and paste, respectively. For instance, > "hello" ! "world" [1] "helloworld" > "hello" !! "world" [1] "hello world" > "hello" !! 1:4 [1] "hello 1" "hello 2" "hello 3" "hello 4" This seems preferable to overloading the + operator, which would lead to people reading code wondering whether a+b is doing an addition or a string concatenation. There are very few circumstances in which one would want to write code where a+b might be either of these. So it's better to make clear what is going on by having a different operator for string concatenation. Plus ! and !! semm natural for representing paste0 and paste, whereas using ++ for paste (with + for paste0) would look rather strange. Radford Neal ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel