str_view shows the first match; str_view_all shows all
the matches. To build regular expressions interactively, check out the
RegExplain RStudio addin.
str_view(string, pattern, match = NA)str_view_all(string, pattern, match = NA)
Input vector. Either a character vector, or something coercible to one.
Pattern to look for.
The default interpretation is a regular expression, as described
in stringi::stringi-search-regex. Control options with
regex().
Match a fixed string (i.e. by comparing only bytes), using
fixed(). This is fast, but approximate. Generally,
for matching human text, you'll want coll() which
respects character matching rules for the specified locale.
Match character, word, line and sentence boundaries with
boundary(). An empty pattern, "", is equivalent to
boundary("character").
If TRUE, shows only strings that match the pattern.
If FALSE, shows only the strings that don't match the pattern.
Otherwise (the default, NA) displays both matches and non-matches.
# NOT RUN {
str_view(c("abc", "def", "fgh"), "[aeiou]")
str_view(c("abc", "def", "fgh"), "^")
str_view(c("abc", "def", "fgh"), "..")
# Show all matches with str_view_all
str_view_all(c("abc", "def", "fgh"), "d|e")
# Use match to control what is shown
str_view(c("abc", "def", "fgh"), "d|e")
str_view(c("abc", "def", "fgh"), "d|e", match = TRUE)
str_view(c("abc", "def", "fgh"), "d|e", match = FALSE)
# }