Warning: This is the manual of the legacy Guile 2.2 series. You may want to read the manual of the current stable series instead.

6.25.2 Text Collation

The following procedures provide support for text collation, i.e., locale-dependent string and character sorting.

Scheme Procedure: string-locale<? s1 s2 [locale]

C Function: scm_string_locale_lt (s1, s2, locale)

Scheme Procedure: string-locale>? s1 s2 [locale]

C Function: scm_string_locale_gt (s1, s2, locale)

Scheme Procedure: string-locale-ci<? s1 s2 [locale]

C Function: scm_string_locale_ci_lt (s1, s2, locale)

Scheme Procedure: string-locale-ci>? s1 s2 [locale]

C Function: scm_string_locale_ci_gt (s1, s2, locale)

Compare strings s1 and s2 in a locale-dependent way. If locale is provided, it should be locale object (as returned by make-locale) and will be used to perform the comparison; otherwise, the current system locale is used. For the -ci variants, the comparison is made in a case-insensitive way.

Scheme Procedure: string-locale-ci=? s1 s2 [locale]

C Function: scm_string_locale_ci_eq (s1, s2, locale)

Compare strings s1 and s2 in a case-insensitive, and locale-dependent way. If locale is provided, it should be a locale object (as returned by make-locale) and will be used to perform the comparison; otherwise, the current system locale is used.

Scheme Procedure: char-locale<? c1 c2 [locale]

C Function: scm_char_locale_lt (c1, c2, locale)

Scheme Procedure: char-locale>? c1 c2 [locale]

C Function: scm_char_locale_gt (c1, c2, locale)

Scheme Procedure: char-locale-ci<? c1 c2 [locale]

C Function: scm_char_locale_ci_lt (c1, c2, locale)

Scheme Procedure: char-locale-ci>? c1 c2 [locale]

C Function: scm_char_locale_ci_gt (c1, c2, locale)

Compare characters c1 and c2 according to either locale (a locale object as returned by make-locale) or the current locale. For the -ci variants, the comparison is made in a case-insensitive way.

Scheme Procedure: char-locale-ci=? c1 c2 [locale]

C Function: scm_char_locale_ci_eq (c1, c2, locale)

Return true if character c1 is equal to c2, in a case insensitive way according to locale or to the current locale.