Generate a List with Fixed Pattern Search Engine's Settings
A convenience function used to tune up the behavior of stri_*_fixed
functions, see stringi-search-fixed.
stri_opts_fixed(case_insensitive = FALSE, overlap = FALSE, ...)
case_insensitive |
logical; enable simple case insensitive matching |
overlap |
logical; enable overlapping matches' detection |
... |
[DEPRECATED] any other arguments passed to this function generate a warning; this argument will be removed in the future |
Case-insensitive matching uses a simple, single-code point case mapping
(via ICU's u_toupper() function).
Full case mappings should be used whenever possible because they produce
better results by working on whole strings. They also take into account
the string context and the language, see stringi-search-coll.
Searching for overlapping pattern matches is available in
stri_extract_all_fixed, stri_locate_all_fixed,
and stri_count_fixed functions.
Returns a named list object.
C/POSIX Migration – ICU User Guide, http://userguide.icu-project.org/posix#case_mappings
Other search_fixed:
about_search_fixed,
about_search
stri_detect_fixed('ala', 'ALA') # case-sensitive by default
stri_detect_fixed('ala', 'ALA', opts_fixed=stri_opts_fixed(case_insensitive=TRUE))
stri_detect_fixed('ala', 'ALA', case_insensitive=TRUE) # equivalentPlease choose more modern alternatives, such as Google Chrome or Mozilla Firefox.