Make it easier to work with strings.

Documentation for package ‘stringr’ version 0.6.2

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fixed	Match fixed characters, not regular expression.
ignore.case	Ignore case of match.
invert_match	Switch location of matches to location of non-matches.
perl	Use perl regular expressions.
str_c	Join multiple strings into a single string.
str_count	Count the number of matches in a string.
str_detect	Detect the presence or absence of a pattern in a string.
str_dup	Duplicate and concatenate strings within a character vector.
str_extract	Extract first piece of a string that matches a pattern.
str_extract_all	Extract all pieces of a string that match a pattern.
str_join	Join multiple strings into a single string.
str_length	The length of a string (in characters).
str_locate	Locate the position of the first occurence of a pattern in a string.
str_locate_all	Locate the position of all occurences of a pattern in a string.
str_match	Extract first matched group from a string.
str_match_all	Extract all matched groups from a string.
str_pad	Pad a string.
str_replace	Replace first occurrence of a matched pattern in a string.
str_replace_all	Replace all occurrences of a matched pattern in a string.
str_split	Split up a string into a variable number of pieces.
str_split_fixed	Split up a string into a fixed number of pieces.
str_sub	Extract substrings from a character vector.
str_sub<-	Replace substrings in a character vector. 'str_sub<-' will recycle all arguments to be the same length as the longest argument.
str_sub_replace	Replace substrings in a character vector. 'str_sub<-' will recycle all arguments to be the same length as the longest argument.
str_trim	Trim whitespace from start and end of string.
str_wrap	Wrap strings into nicely formatted paragraphs.
word	Extract words from a sentence.