stri_locate_first: Locate First Occurrence of a Pattern
In stringi: THE string processing package for R

Description Usage Arguments Details Value See Also Examples

A convenience function. Calls either stri_locate_first_regex, stri_locate_first_fixed, or stri_locate_first_charclass, depending on the argument used.

1	stri_locate_first(str, ..., regex, fixed, charclass)

`str`	character vector of strings to search in
`...`	additional arguments passed to the underlying functions
`regex`	character vector; regular expressions
`fixed`	character vector; fixed patterns
`charclass`	character vector; identifiers of character classes

Unless you are very lazy, please call the underlying functions directly for better performance.

Please note that the parameters are considered in the following order: regex, fixed and class. Thus, if you specify regex and class, only the first one will be used.

Returns an integer matrix with two columns, with double NAs in a row if a pattern not found.

Other indexing: stri_locate_all_charclass, stri_locate_all_charclass, stri_locate_first_charclass, stri_locate_first_charclass, stri_locate_last_charclass, stri_locate_last_charclass; stri_locate_all_fixed, stri_locate_all_fixed,, stri_locate_first_fixed, stri_locate_first_fixed,, stri_locate_last_fixed, stri_locate_last_fixed; stri_locate_all_regex, stri_locate_all_regex, stri_locate_first_regex, stri_locate_first_regex, stri_locate_last_regex, stri_locate_last_regex; stri_locate_all; stri_locate_last; stri_locate; stri_sub, stri_sub<-

Other search_locate: stri_extract_all_fixed, stri_extract_all_fixed,, stri_extract_first_fixed, stri_extract_first_fixed,, stri_extract_last_fixed, stri_extract_last_fixed; stri_locate_all_charclass, stri_locate_all_charclass, stri_locate_first_charclass, stri_locate_first_charclass, stri_locate_last_charclass, stri_locate_last_charclass; stri_locate_all_fixed, stri_locate_all_fixed,, stri_locate_first_fixed, stri_locate_first_fixed,, stri_locate_last_fixed, stri_locate_last_fixed; stri_locate_all_regex, stri_locate_all_regex, stri_locate_first_regex, stri_locate_first_regex, stri_locate_last_regex, stri_locate_last_regex; stri_locate_all; stri_locate_last; stri_locate; stringi-search

## Not run: 
s <- 'Lorem ipsum dolor sit amet, consectetur adipisicing elit.'
stri_locate_first('XaaaaX',
   regex=c('\\p{Ll}', '\\p{Ll}+', '\\p{Ll}{2,3}', '\\p{Ll}{2,3}?'))
stri_locate_first('Bartolini', fixed=letters[1:3])
stri_locate_first('a b c', charclass='Zs')

## End(Not run)