Count the Number of Text Boundaries
These functions determine the number of text boundaries (like character, word, line, or sentence boundaries) in a string.
stri_count_boundaries(str, ..., opts_brkiter = NULL) stri_count_words(str, locale = NULL)
str |
character vector or an object coercible to |
... |
additional settings for |
opts_brkiter |
a named list with ICU BreakIterator's settings,
see |
locale |
|
Vectorized over str.
For more information on text boundary analysis
performed by ICU's BreakIterator, see
stringi-search-boundaries.
In case of stri_count_words,
just like in stri_extract_all_words and
stri_locate_all_words,
ICU's word BreakIterator iterator is used
to locate the word boundaries, and all non-word characters
(UBRK_WORD_NONE rule status) are ignored.
This function is equivalent to a call to
stri_count_boundaries(str, type='word', skip_word_none=TRUE, locale=locale).
Note that a BreakIterator of type character
may be used to count the number of Unicode characters in a string.
The stri_length function,
which aims to count the number of Unicode code points,
might report different results.
Moreover, a BreakIterator of type sentence
may be used to count the number of sentences in a text piece.
Both functions return an integer vector.
Other search_count:
about_search,
stri_count()
Other locale_sensitive:
%s<%(),
about_locale,
about_search_boundaries,
about_search_coll,
stri_compare(),
stri_duplicated(),
stri_enc_detect2(),
stri_extract_all_boundaries(),
stri_locate_all_boundaries(),
stri_opts_collator(),
stri_order(),
stri_rank(),
stri_sort_key(),
stri_sort(),
stri_split_boundaries(),
stri_trans_tolower(),
stri_unique(),
stri_wrap()
Other text_boundaries:
about_search_boundaries,
about_search,
stri_extract_all_boundaries(),
stri_locate_all_boundaries(),
stri_opts_brkiter(),
stri_split_boundaries(),
stri_split_lines(),
stri_trans_tolower(),
stri_wrap()
test <- 'The\u00a0above-mentioned features are very useful. Spam, spam, eggs, bacon, and spam.'
stri_count_boundaries(test, type='word')
stri_count_boundaries(test, type='sentence')
stri_count_boundaries(test, type='character')
stri_count_words(test)
test2 <- stri_trans_nfkd('\u03c0\u0153\u0119\u00a9\u00df\u2190\u2193\u2192')
stri_count_boundaries(test2, type='character')
stri_length(test2)
stri_numbytes(test2)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.