single_shortcuts {rex} | R Documentation |
Each of these shortcuts has both a plural (-s) and inverse (non_) form.
single_shortcuts
alnum - [:alnum:] alpha - [:alpha:] letter - [:alpha:] blank - [:blank:] cntrl - [:cntrl:] digit - [:digit:] number - [:digit:] graph - [:graph:] lower - [:lower:] print - [:print:] punct - [:punct:] space - [:space:] upper - [:upper:] xdigit - [:xdigit:] newline - \R single_quote - ' double_quote - " quote - '"