/* Unicode character case mappings.
- Copyright (C) 2002, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2009, 2010 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
#include "unitypes.h"
+/* Get bool. */
#include <stdbool.h>
/* Get size_t. */
case-mapping. It can also be NULL, for no normalization. */
extern uint8_t *
u8_toupper (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
extern uint16_t *
u16_toupper (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
extern uint32_t *
u32_toupper (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
/* Return the lowercase mapping of a string.
The nf argument identifies the normalization form to apply after the
case-mapping. It can also be NULL, for no normalization. */
extern uint8_t *
u8_tolower (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
extern uint16_t *
u16_tolower (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
extern uint32_t *
u32_tolower (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
/* Return the titlecase mapping of a string.
The nf argument identifies the normalization form to apply after the
case-mapping. It can also be NULL, for no normalization. */
extern uint8_t *
u8_totitle (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
extern uint16_t *
u16_totitle (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
extern uint32_t *
u32_totitle (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
+
+/* The case-mapping context given by a prefix string. */
+typedef struct casing_prefix_context
+ {
+ /* These fields are private, undocumented. */
+ uint32_t last_char_except_ignorable;
+ uint32_t last_char_normal_or_above;
+ }
+ casing_prefix_context_t;
+/* The case-mapping context of the empty prefix string. */
+extern const casing_prefix_context_t unicase_empty_prefix_context;
+/* Return the case-mapping context of a given prefix string. */
+extern casing_prefix_context_t
+ u8_casing_prefix_context (const uint8_t *s, size_t n);
+extern casing_prefix_context_t
+ u16_casing_prefix_context (const uint16_t *s, size_t n);
+extern casing_prefix_context_t
+ u32_casing_prefix_context (const uint32_t *s, size_t n);
+/* Return the case-mapping context of the prefix concat(A, S), given the
+ case-mapping context of the prefix A. */
+extern casing_prefix_context_t
+ u8_casing_prefixes_context (const uint8_t *s, size_t n,
+ casing_prefix_context_t a_context);
+extern casing_prefix_context_t
+ u16_casing_prefixes_context (const uint16_t *s, size_t n,
+ casing_prefix_context_t a_context);
+extern casing_prefix_context_t
+ u32_casing_prefixes_context (const uint32_t *s, size_t n,
+ casing_prefix_context_t a_context);
+
+/* The case-mapping context given by a suffix string. */
+typedef struct casing_suffix_context
+ {
+ /* These fields are private, undocumented. */
+ uint32_t first_char_except_ignorable;
+ uint32_t bits;
+ }
+ casing_suffix_context_t;
+/* The case-mapping context of the empty suffix string. */
+extern const casing_suffix_context_t unicase_empty_suffix_context;
+/* Return the case-mapping context of a given suffix string. */
+extern casing_suffix_context_t
+ u8_casing_suffix_context (const uint8_t *s, size_t n);
+extern casing_suffix_context_t
+ u16_casing_suffix_context (const uint16_t *s, size_t n);
+extern casing_suffix_context_t
+ u32_casing_suffix_context (const uint32_t *s, size_t n);
+/* Return the case-mapping context of the suffix concat(S, A), given the
+ case-mapping context of the suffix A. */
+extern casing_suffix_context_t
+ u8_casing_suffixes_context (const uint8_t *s, size_t n,
+ casing_suffix_context_t a_context);
+extern casing_suffix_context_t
+ u16_casing_suffixes_context (const uint16_t *s, size_t n,
+ casing_suffix_context_t a_context);
+extern casing_suffix_context_t
+ u32_casing_suffixes_context (const uint32_t *s, size_t n,
+ casing_suffix_context_t a_context);
+
+/* Return the uppercase mapping of a string that is surrounded by a prefix
+ and a suffix. */
+extern uint8_t *
+ u8_ct_toupper (const uint8_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
+extern uint16_t *
+ u16_ct_toupper (const uint16_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
+extern uint32_t *
+ u32_ct_toupper (const uint32_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
+
+/* Return the lowercase mapping of a string that is surrounded by a prefix
+ and a suffix. */
+extern uint8_t *
+ u8_ct_tolower (const uint8_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
+extern uint16_t *
+ u16_ct_tolower (const uint16_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
+extern uint32_t *
+ u32_ct_tolower (const uint32_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
+
+/* Return the titlecase mapping of a string that is surrounded by a prefix
+ and a suffix. */
+extern uint8_t *
+ u8_ct_totitle (const uint8_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
+extern uint16_t *
+ u16_ct_totitle (const uint16_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
+extern uint32_t *
+ u32_ct_totitle (const uint32_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
/* Return the case folded string.
+ Comparing uN_casefold (S1) and uN_casefold (S2) with uN_cmp2() is equivalent
+ to comparing S1 and S2 with uN_casecmp().
The nf argument identifies the normalization form to apply after the
case-mapping. It can also be NULL, for no normalization. */
extern uint8_t *
u8_casefold (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
extern uint16_t *
u16_casefold (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
extern uint32_t *
u32_casefold (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
+/* Likewise, for a string that is surrounded by a prefix and a suffix. */
+extern uint8_t *
+ u8_ct_casefold (const uint8_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint8_t *resultbuf, size_t *lengthp);
+extern uint16_t *
+ u16_ct_casefold (const uint16_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint16_t *resultbuf, size_t *lengthp);
+extern uint32_t *
+ u32_ct_casefold (const uint32_t *s, size_t n,
+ casing_prefix_context_t prefix_context,
+ casing_suffix_context_t suffix_context,
+ const char *iso639_language,
+ uninorm_t nf,
+ uint32_t *resultbuf, size_t *lengthp);
/* Compare S1 and S2, ignoring differences in case and normalization.
The nf argument identifies the normalization form to apply after the
return 0. Upon failure, return -1 with errno set. */
extern int
u8_casecmp (const uint8_t *s1, size_t n1,
- const uint8_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const uint8_t *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
extern int
u16_casecmp (const uint16_t *s1, size_t n1,
- const uint16_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const uint16_t *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
extern int
u32_casecmp (const uint32_t *s1, size_t n1,
- const uint32_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const uint32_t *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
extern int
ulc_casecmp (const char *s1, size_t n1,
- const char *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const char *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
-/* Converts the string S of length N to a string in locale encoding, in such a
- way that comparing uN_casexfrm (S1) and uN_casexfrm (S2) with memcmp2() is
- equivalent to comparing S1 and S2 with uN_casecoll().
+/* Convert the string S of length N to a NUL-terminated byte sequence, in such
+ a way that comparing uN_casexfrm (S1) and uN_casexfrm (S2) with the gnulib
+ function memcmp2() is equivalent to comparing S1 and S2 with uN_casecoll().
NF must be either UNINORM_NFC, UNINORM_NFKC, or NULL for no normalization. */
extern char *
u8_casexfrm (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
+ uninorm_t nf, char *resultbuf, size_t *lengthp);
extern char *
u16_casexfrm (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
+ uninorm_t nf, char *resultbuf, size_t *lengthp);
extern char *
u32_casexfrm (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
+ uninorm_t nf, char *resultbuf, size_t *lengthp);
extern char *
ulc_casexfrm (const char *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
+ uninorm_t nf, char *resultbuf, size_t *lengthp);
/* Compare S1 and S2, ignoring differences in case and normalization, using the
collation rules of the current locale.
return 0. Upon failure, return -1 with errno set. */
extern int
u8_casecoll (const uint8_t *s1, size_t n1,
- const uint8_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const uint8_t *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
extern int
u16_casecoll (const uint16_t *s1, size_t n1,
- const uint16_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const uint16_t *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
extern int
u32_casecoll (const uint32_t *s1, size_t n1,
- const uint32_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const uint32_t *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
extern int
ulc_casecoll (const char *s1, size_t n1,
- const char *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
+ const char *s2, size_t n2,
+ const char *iso639_language, uninorm_t nf, int *resultp);
/* Set *RESULTP to true if mapping NFD(S) to upper case is a no-op, or to false
otherwise, and return 0. Upon failure, return -1 with errno set. */
extern int
u8_is_uppercase (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u16_is_uppercase (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u32_is_uppercase (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
/* Set *RESULTP to true if mapping NFD(S) to lower case is a no-op, or to false
otherwise, and return 0. Upon failure, return -1 with errno set. */
extern int
u8_is_lowercase (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u16_is_lowercase (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u32_is_lowercase (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
/* Set *RESULTP to true if mapping NFD(S) to title case is a no-op, or to false
otherwise, and return 0. Upon failure, return -1 with errno set. */
extern int
u8_is_titlecase (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u16_is_titlecase (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u32_is_titlecase (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
/* Set *RESULTP to true if applying case folding to NFD(S) is a no-op, or to
false otherwise, and return 0. Upon failure, return -1 with errno set. */
extern int
u8_is_casefolded (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u16_is_casefolded (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u32_is_casefolded (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
/* Set *RESULTP to true if case matters for S, that is, if mapping NFD(S) to
either upper case or lower case or title case is not a no-op.
Upon failure, return -1 with errno set. */
extern int
u8_is_cased (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u16_is_cased (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
extern int
u32_is_cased (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
+ const char *iso639_language,
+ bool *resultp);
/* ========================================================================= */
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