# stri_length: Count the Number of Code Points¶

## Description¶

This function returns the number of code points in each string.

## Usage¶

stri_length(str)


## Arguments¶

str

character vector or an object coercible to

## Details¶

Note that the number of code points is not the same as the ‘width’ of the string when printed on the console.

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. For ‘byte’ encodings we get, as usual, an error.

## Value¶

Returns an integer vector of the same length as str.

## Author(s)¶

Marek Gagolewski and other contributors

The official online manual of stringi at https://stringi.gagolewski.com/

Other length: %s\$%(), stri_isempty(), stri_numbytes(), stri_pad_both(), stri_sprintf(), stri_width()

## Examples¶

stri_length(LETTERS)
##  [1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
stri_length(c('abc', '123', '\u0105\u0104'))
## [1] 3 3 2
stri_length('\u0105') # length is one, but...
## [1] 1
stri_numbytes('\u0105') # 2 bytes are used
## [1] 2
stri_numbytes(stri_trans_nfkd('\u0105')) # 3 bytes here but...
## [1] 3
stri_length(stri_trans_nfkd('\u0105')) # ...two code points (!)
## [1] 2
stri_count_boundaries(stri_trans_nfkd('\u0105'), type='character') # ...and one Unicode character
## [1] 1