string

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Create a string

These base-type constructors allow more control over the creation of strings in R. They take character vectors or string-like objects (integerish or raw vectors), and optionally set the encoding. The string version checks that the input contains a scalar string.

Usage
string(x, encoding = NULL)
Arguments
x

A character vector or a vector or list of string-like objects.

encoding

If non-null, passed to set_chr_encoding() to add an encoding mark. This is only declarative, no encoding conversion is performed.

See Also

set_chr_encoding() for more information about encodings in R.

Aliases
  • string
Examples
# NOT RUN {
# As everywhere in R, you can specify a string with Unicode
# escapes. The characters corresponding to Unicode codepoints will
# be encoded in UTF-8, and the string will be marked as UTF-8
# automatically:
cafe <- string("caf\uE9")
str_encoding(cafe)
as_bytes(cafe)

# In addition, string() provides useful conversions to let
# programmers control how the string is represented in memory. For
# encodings other than UTF-8, you'll need to supply the bytes in
# hexadecimal form. If it is a latin1 encoding, you can mark the
# string explicitly:
cafe_latin1 <- string(c(0x63, 0x61, 0x66, 0xE9), "latin1")
str_encoding(cafe_latin1)
as_bytes(cafe_latin1)
# }
Documentation reproduced from package rlang, version 0.1.6, License: GPL-3

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