AsciiToInt returns integer codes in 0:255
for each (one byte) character in strings. ichar is an
alias for it, for old S compatibility.
strcodes implements in R the basic engine for translating
characters to corresponding integer codes.
chars8bit() is the inverse function of
AsciiToint, producing “one byte” characters from integer
codes. Note that it (and hence strcodes() depends on the
locale, see Sys.getlocale().
a vector of (unique) character strings, typically of one
character each.
Details
Only codes in 1:127 make up the ASCII encoding which should be
identical for all R versions, whereas the ‘upper’ half
is often determined from the ISO-8859-1 (aka “ISO-Latin 1)”
encoding, but may well differ, depending on the locale setting, see
also Sys.setlocale.
Note that 0 is no longer allowed since, R does not allow