stri_compare: Compare Strings with or without Collation
In stringi: THE string processing package for R

Description Usage Arguments Details Value See Also Examples

These functions may be used to determine if two strings are equal (this is performed more intelligently than you may expect at a first glance) or to check whether they appear in a specific lexicographic order.

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stri_compare(e1, e2, opts_collator = list())

stri_cmp(e1, e2, opts_collator = list())

`e1`	character vector
`e2`	character vector
`opts_collator`	a named list as generated with `stri_opts_collator` with Collator's options, or `NA` for dummy Unicode code point comparison

stri_cmp is an alias to stri_compare. They both do the same operation.

Vectorized over e1 and e2.

For more information on ICU's Collator and how to tune it up in stringi, refer to stri_opts_collator. Please note that different locale settings may lead to different results (see the examples below).

Each function returns an integer vector with comparison results of corresponding pairs of elements from e1 and e2: -1 if e1[...] < e2[...], 0 if they are equal, and 1 if greater.

Other locale_sensitive: stri_count_fixed; stri_detect_fixed; stri_enc_detect2; 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_opts_collator; stri_order, stri_sort; stri_replace_all_fixed, stri_replace_all_fixed, stri_replace_first_fixed, stri_replace_first_fixed, stri_replace_last_fixed, stri_replace_last_fixed; stri_split_fixed, stri_split_fixed; stri_trans_tolower, stri_trans_totitle, stri_trans_toupper; stringi-locale; stringi-search-fixed

## Not run: 
stri_cmp("hladny", "chladny", stri_opts_collator(locale="pl_PL")) # in Polish ch < h
stri_cmp("hladny", "chladny", stri_opts_collator(locale="sk_SK")) # in Slovak ch > h
stri_cmp("hladny", "HLADNY") # < or > (depends on locale)
stri_cmp("hladny", "HLADNY", stri_opts_collator(strength=2)) # ==
stri_cmp("hladn\u00FD", "hladny", stri_opts_collator(strength=1, locale="sk_SK")) # ==
stri_cmp(stri_enc_nfkd('\u0105'), '\u105') # but cf. stri_enc_nfkd('\u0105') != '\u105'

## End(Not run)