Encodes a character string, raw vector or other object to base64 encoding.
Details
A character string or raw vector (with no attributes) is encoded as is, whilst all other objects are first serialized (using R serialisation version 3, big-endian representation).
References
This implementation is based that by 'The Mbed TLS Contributors' under the 'Mbed TLS' Trusted Firmware Project at https://www.trustedfirmware.org/projects/mbed-tls.
Examples
base64enc("secret base")
#> [1] "c2VjcmV0IGJhc2U="
base64enc(as.raw(c(1L, 2L, 4L)), convert = FALSE)
#> [1] 41 51 49 45
base64enc(data.frame())
#> [1] "WAoAAAADAAQEAQADBQAAAAAFVVRGLTgAAAMTAAAAAAAABAIAAAABAAQACQAAAAVuYW1lcwAAABAAAAAAAAAEAgAAAAEABAAJAAAACXJvdy5uYW1lcwAAAA0AAAAAAAAEAgAAAAEABAAJAAAABWNsYXNzAAAAEAAAAAEABAAJAAAACmRhdGEuZnJhbWUAAAD+"