X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Funicase.h;h=cb2df95b6ea10fdc98ad3912a4d736c282dec285;hb=ad82c2fb130fbf3bfd3f7f9aa60e99a19ff9d396;hp=63fd862325f66fedf5276f5263e56cc9f3b310e5;hpb=64c35d399b87031707089d8c7438af86cacb2536;p=gnulib.git diff --git a/lib/unicase.h b/lib/unicase.h index 63fd86232..cb2df95b6 100644 --- a/lib/unicase.h +++ b/lib/unicase.h @@ -19,6 +19,7 @@ #include "unitypes.h" +/* Get bool. */ #include /* Get size_t. */ @@ -133,7 +134,139 @@ extern uint32_t * 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 * @@ -148,6 +281,28 @@ 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); +/* 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 @@ -166,10 +321,14 @@ 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); +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); -/* 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, @@ -180,6 +339,9 @@ extern char * extern char * u32_casexfrm (const uint32_t *s, size_t n, const char *iso639_language, 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); /* Compare S1 and S2, ignoring differences in case and normalization, using the collation rules of the current locale. @@ -200,6 +362,10 @@ 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); +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); /* Set *RESULTP to true if mapping NFD(S) to upper case is a no-op, or to false