| stri_length {stringi} | R Documentation |
This function returns the number of code points in each string.
stri_length(str)
str |
character vector or an object coercible to |
Note that the number of code points is not the same as the 'width' of the string when printed on the screen.
If a given string is in UTF-8 and has not been properly normalized
(e.g. by stri_trans_nfc), the returned counts may sometimes be
misleading. See stri_count_boundaries for a method to count
Unicode characters. Moreover, if an incorrect UTF-8 byte sequence is detected,
then a warning is generated and the corresponding output element
is set to NA, see also stri_enc_toutf8 for a method
to deal with such cases.
Missing values are handled properly,
as opposed to the built-in nchar function.
For 'byte' encodings we get, as usual, an error.
Returns an integer vector of the same length as str.
Other length: stri_isempty,
stri_numbytes, stri_width
stri_length(LETTERS)
stri_length(c('abc', '123', '\u0105\u0104'))
stri_length('\u0105') # length is one, but...
stri_numbytes('\u0105') # 2 bytes are used
stri_numbytes(stri_trans_nfkd('\u0105')) # 3 bytes here but...
stri_length(stri_trans_nfkd('\u0105')) # ...two code points (!)
stri_count_boundaries(stri_trans_nfkd('\u0105'), type="character") # ...and one Unicode character