| metachar {ds4psy} | R Documentation |
metachar provides metacharacters (as a character vector).
Description
metachar provides the metacharacters of extended regular expressions
(as a character vector).
Usage
metachar
Format
An object of class character of length 12.
Details
metachar allows illustrating the notion of
meta-characters in regular expressions
(and provides corresponding exemplars).
See ?base::regex for details on regular expressions
and ?"'" for a list of character constants/quotes in R.
See Also
cclass for a vector of character classes.
Other text objects and functions:
Umlaut,
capitalize(),
caseflip(),
cclass,
chars_to_text(),
collapse_chars(),
count_chars_words(),
count_chars(),
count_words(),
invert_rules(),
l33t_rul35,
map_text_chars(),
map_text_coord(),
map_text_regex(),
read_ascii(),
text_to_chars(),
text_to_sentences(),
text_to_words(),
transl33t(),
words_to_text()
Examples
metachar
length(metachar) # 12
nchar(paste0(metachar, collapse = "")) # 12