src/scheme/char.sgl — sigil-r7rs

1;;; (scheme char) - R7RS Character Library

2;;;

3;;; Character comparison and conversion procedures.

4;;;

5;;; See: [R7RS Small](https://small.r7rs.org/) §6.6

7(define-library (scheme char)

8 (import (sigil string))

9 (export char=?

10 char<?

11 char>?

12 char<=?

13 char>=?

14 char->integer

15 integer->char

16 char-alphabetic?

17 char-numeric?

18 char-whitespace?

19 char-upper-case?

20 char-lower-case?

21 char-upcase

22 char-downcase

23 char-foldcase

24 digit-value

25 char-ci=?

26 char-ci<?

27 char-ci>?

28 char-ci<=?

29 char-ci>=?

30 string-upcase

31 string-downcase

32 string-foldcase

33 string-ci=?

34 string-ci<?

35 string-ci>?

36 string-ci<=?

37 string-ci>=?))

39;;; Character and string classification/comparison.

40;;; Native builtins provide char predicates and case conversion.

41;;; String CI comparisons come from (sigil string).