# RE2 Regular Expression

## Documentation for package ‘re2r’ version 0.2.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

$.re2_matrix | Get a match group
ANCHOR_BOTH | Anchors for pattern
ANCHOR_START | Anchors for pattern
get_expression_size | Get pre-compiled regular expression program size
get_named_groups | Return capturing names for a pre-compiled regular expression.
get_number_of_groups | Return the number of capturing subpatterns
get_options | Get options of a pre-compiled regular expression
get_pattern | The string specification for this RE2.
get_program_fanout | Get program fanout
get_simplify | Simplify pattern strings.
is_re2c_na | Check NA pattern
print.re2c | Print information about a pre-compiled regular expression
print.re2_matrix | Print information about a re2_matrix
quote_meta | Escapes all potentially meaningful regexp characters in 'unquoted'.
re2 | Create a pre-compiled regular expression
re2_count | Count the number of matches in a string.
re2_detect | Test a pattern in strings, and return boolean.
re2_extract | Extract matching patterns from a string.
re2_extract_all | Extract matching patterns from a string.
re2_locate | Locate the position of patterns in a string.
re2_locate_all | Locate the position of patterns in a string.
re2_match | Find matched groups from strings.
re2_match_all | Find matched groups from strings.
re2_replace | Replace matched patterns in a string.
re2_replace_all | Replace matched patterns in a string.
re2_split | Split a string into pieces.
re2_split_fixed | Split a string into pieces.
re2_subset | Keep strings matching a pattern.
show_regex | Show regex pattern in a htmlwidget
sub_string | Extract and replace substrings from a character vector.
sub_string<- | Extract and replace substrings from a character vector.
UNANCHORED | Anchors for pattern