PostgreSQL Source Code git master
Data Structures | Functions | Variables
pg_locale_builtin.c File Reference
#include "postgres.h"
#include "catalog/pg_database.h"
#include "catalog/pg_collation.h"
#include "common/unicode_case.h"
#include "common/unicode_category.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "utils/builtins.h"
#include "utils/pg_locale.h"
#include "utils/syscache.h"
Include dependency graph for pg_locale_builtin.c:

Go to the source code of this file.

Data Structures

struct   WordBoundaryState
 

Functions

pg_locale_t  create_pg_locale_builtin (Oid collid, MemoryContext context)
 
char *  get_collation_actual_version_builtin (const char *collcollate)
 
static size_t  initcap_wbnext (void *state)
 
static size_t  strlower_builtin (char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)
 
static size_t  strtitle_builtin (char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)
 
static size_t  strupper_builtin (char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)
 
static size_t  strfold_builtin (char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)
 
static bool  wc_isdigit_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_isalpha_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_isalnum_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_isupper_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_islower_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_isgraph_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_isprint_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_ispunct_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  wc_isspace_builtin (pg_wchar wc, pg_locale_t locale)
 
static bool  char_is_cased_builtin (char ch, pg_locale_t locale)
 
static pg_wchar  wc_toupper_builtin (pg_wchar wc, pg_locale_t locale)
 
static pg_wchar  wc_tolower_builtin (pg_wchar wc, pg_locale_t locale)
 

Variables

static const struct ctype_methods  ctype_methods_builtin
 

Function Documentation

◆ char_is_cased_builtin()

static bool char_is_cased_builtin ( char  ch,
pg_locale_t  locale 
)
static

Definition at line 167 of file pg_locale_builtin.c.

168{
169 return IS_HIGHBIT_SET(ch) ||
170 (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z');
171}
#define IS_HIGHBIT_SET(ch)
Definition: c.h:1154

References IS_HIGHBIT_SET.

◆ create_pg_locale_builtin()

pg_locale_t create_pg_locale_builtin ( Oid  collid,
MemoryContext  context 
)

Definition at line 205 of file pg_locale_builtin.c.

206{
207 const char *locstr;
208 pg_locale_t result;
209
210 if (collid == DEFAULT_COLLATION_OID)
211 {
212 HeapTuple tp;
213 Datum datum;
214
216 if (!HeapTupleIsValid(tp))
217 elog(ERROR, "cache lookup failed for database %u", MyDatabaseId);
218 datum = SysCacheGetAttrNotNull(DATABASEOID, tp,
219 Anum_pg_database_datlocale);
220 locstr = TextDatumGetCString(datum);
221 ReleaseSysCache(tp);
222 }
223 else
224 {
225 HeapTuple tp;
226 Datum datum;
227
229 if (!HeapTupleIsValid(tp))
230 elog(ERROR, "cache lookup failed for collation %u", collid);
231 datum = SysCacheGetAttrNotNull(COLLOID, tp,
232 Anum_pg_collation_colllocale);
233 locstr = TextDatumGetCString(datum);
234 ReleaseSysCache(tp);
235 }
236
238
239 result = MemoryContextAllocZero(context, sizeof(struct pg_locale_struct));
240
241 result->builtin.locale = MemoryContextStrdup(context, locstr);
242 result->builtin.casemap_full = (strcmp(locstr, "PG_UNICODE_FAST") == 0);
243 result->deterministic = true;
244 result->collate_is_c = true;
245 result->ctype_is_c = (strcmp(locstr, "C") == 0);
246 if (!result->ctype_is_c)
247 result->ctype = &ctype_methods_builtin;
248
249 return result;
250}
#define TextDatumGetCString(d)
Definition: builtins.h:98
Oid collid
Definition: collationcmds.c:700
#define ERROR
Definition: elog.h:39
#define elog(elevel,...)
Definition: elog.h:226
Oid MyDatabaseId
Definition: globals.c:94
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
int GetDatabaseEncoding(void)
Definition: mbutils.c:1262
char * MemoryContextStrdup(MemoryContext context, const char *string)
Definition: mcxt.c:1746
void * MemoryContextAllocZero(MemoryContext context, Size size)
Definition: mcxt.c:1263
const char * builtin_validate_locale(int encoding, const char *locale)
Definition: pg_locale.c:1462
static const struct ctype_methods ctype_methods_builtin
static Datum ObjectIdGetDatum(Oid X)
Definition: postgres.h:262
uint64_t Datum
Definition: postgres.h:70
Definition: pg_locale.h:150
const struct ctype_methods * ctype
Definition: pg_locale.h:157
bool collate_is_c
Definition: pg_locale.h:152
bool ctype_is_c
Definition: pg_locale.h:153
struct pg_locale_struct::@164::@166 builtin
const char * locale
Definition: pg_locale.h:163
bool deterministic
Definition: pg_locale.h:151
bool casemap_full
Definition: pg_locale.h:164
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:264
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:220
Datum SysCacheGetAttrNotNull(int cacheId, HeapTuple tup, AttrNumber attributeNumber)
Definition: syscache.c:625

References pg_locale_struct::builtin, builtin_validate_locale(), pg_locale_struct::casemap_full, pg_locale_struct::collate_is_c, collid, pg_locale_struct::ctype, pg_locale_struct::ctype_is_c, ctype_methods_builtin, pg_locale_struct::deterministic, elog, ERROR, GetDatabaseEncoding(), HeapTupleIsValid, pg_locale_struct::locale, MemoryContextAllocZero(), MemoryContextStrdup(), MyDatabaseId, ObjectIdGetDatum(), ReleaseSysCache(), SearchSysCache1(), SysCacheGetAttrNotNull(), and TextDatumGetCString.

Referenced by create_pg_locale(), and init_database_collation().

◆ get_collation_actual_version_builtin()

char * get_collation_actual_version_builtin ( const char *  collcollate )

Definition at line 253 of file pg_locale_builtin.c.

254{
255 /*
256 * The only two supported locales (C and C.UTF-8) are both based on memcmp
257 * and are not expected to change, but track the version anyway.
258 *
259 * Note that the character semantics may change for some locales, but the
260 * collation version only tracks changes to sort order.
261 */
262 if (strcmp(collcollate, "C") == 0)
263 return "1";
264 else if (strcmp(collcollate, "C.UTF-8") == 0)
265 return "1";
266 else if (strcmp(collcollate, "PG_UNICODE_FAST") == 0)
267 return "1";
268 else
270 (errcode(ERRCODE_WRONG_OBJECT_TYPE),
271 errmsg("invalid locale name \"%s\" for builtin provider",
272 collcollate)));
273
274 return NULL; /* keep compiler quiet */
275}
int errcode(int sqlerrcode)
Definition: elog.c:854
int errmsg(const char *fmt,...)
Definition: elog.c:1071
#define ereport(elevel,...)
Definition: elog.h:150

References ereport, errcode(), errmsg(), and ERROR.

Referenced by get_collation_actual_version().

◆ initcap_wbnext()

static size_t initcap_wbnext ( void *  state )
static

Definition at line 43 of file pg_locale_builtin.c.

44{
45 struct WordBoundaryState *wbstate = (struct WordBoundaryState *) state;
46
47 while (wbstate->offset < wbstate->len &&
48 wbstate->str[wbstate->offset] != '0円')
49 {
50 pg_wchar u = utf8_to_unicode((unsigned char *) wbstate->str +
51 wbstate->offset);
52 bool curr_alnum = pg_u_isalnum(u, wbstate->posix);
53
54 if (!wbstate->init || curr_alnum != wbstate->prev_alnum)
55 {
56 size_t prev_offset = wbstate->offset;
57
58 wbstate->init = true;
59 wbstate->offset += unicode_utf8len(u);
60 wbstate->prev_alnum = curr_alnum;
61 return prev_offset;
62 }
63
64 wbstate->offset += unicode_utf8len(u);
65 }
66
67 return wbstate->len;
68}
static pg_wchar utf8_to_unicode(const unsigned char *c)
Definition: mbprint.c:53
unsigned int pg_wchar
Definition: mbprint.c:31
static int unicode_utf8len(pg_wchar c)
Definition: pg_wchar.h:607
const char * str
Definition: regguts.h:323
bool pg_u_isalnum(pg_wchar code, bool posix)

References WordBoundaryState::init, WordBoundaryState::len, WordBoundaryState::offset, pg_u_isalnum(), WordBoundaryState::posix, WordBoundaryState::prev_alnum, WordBoundaryState::str, unicode_utf8len(), and utf8_to_unicode().

Referenced by strtitle_builtin().

◆ strfold_builtin()

static size_t strfold_builtin ( char *  dest,
size_t  destsize,
const char *  src,
ssize_t  srclen,
pg_locale_t  locale 
)
static

Definition at line 105 of file pg_locale_builtin.c.

107{
108 return unicode_strfold(dest, destsize, src, srclen,
109 locale->builtin.casemap_full);
110}
static char * locale
Definition: initdb.c:140
dest
size_t unicode_strfold(char *dst, size_t dstsize, const char *src, ssize_t srclen, bool full)
Definition: unicode_case.c:189

References generate_unaccent_rules::dest, locale, and unicode_strfold().

◆ strlower_builtin()

static size_t strlower_builtin ( char *  dest,
size_t  destsize,
const char *  src,
ssize_t  srclen,
pg_locale_t  locale 
)
static

Definition at line 71 of file pg_locale_builtin.c.

73{
74 return unicode_strlower(dest, destsize, src, srclen,
75 locale->builtin.casemap_full);
76}
size_t unicode_strlower(char *dst, size_t dstsize, const char *src, ssize_t srclen, bool full)
Definition: unicode_case.c:101

References generate_unaccent_rules::dest, locale, and unicode_strlower().

◆ strtitle_builtin()

static size_t strtitle_builtin ( char *  dest,
size_t  destsize,
const char *  src,
ssize_t  srclen,
pg_locale_t  locale 
)
static

Definition at line 79 of file pg_locale_builtin.c.

81{
82 struct WordBoundaryState wbstate = {
83 .str = src,
84 .len = srclen,
85 .offset = 0,
86 .posix = !locale->builtin.casemap_full,
87 .init = false,
88 .prev_alnum = false,
89 };
90
91 return unicode_strtitle(dest, destsize, src, srclen,
92 locale->builtin.casemap_full,
93 initcap_wbnext, &wbstate);
94}
static size_t initcap_wbnext(void *state)
size_t unicode_strtitle(char *dst, size_t dstsize, const char *src, ssize_t srclen, bool full, WordBoundaryNext wbnext, void *wbstate)
Definition: unicode_case.c:138

References generate_unaccent_rules::dest, initcap_wbnext(), locale, WordBoundaryState::str, and unicode_strtitle().

◆ strupper_builtin()

static size_t strupper_builtin ( char *  dest,
size_t  destsize,
const char *  src,
ssize_t  srclen,
pg_locale_t  locale 
)
static

Definition at line 97 of file pg_locale_builtin.c.

99{
100 return unicode_strupper(dest, destsize, src, srclen,
101 locale->builtin.casemap_full);
102}
size_t unicode_strupper(char *dst, size_t dstsize, const char *src, ssize_t srclen, bool full)
Definition: unicode_case.c:165

References generate_unaccent_rules::dest, locale, and unicode_strupper().

◆ wc_isalnum_builtin()

static bool wc_isalnum_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 125 of file pg_locale_builtin.c.

126{
127 return pg_u_isalnum(wc, !locale->builtin.casemap_full);
128}

References locale, and pg_u_isalnum().

◆ wc_isalpha_builtin()

static bool wc_isalpha_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 119 of file pg_locale_builtin.c.

120{
121 return pg_u_isalpha(wc);
122}
bool pg_u_isalpha(pg_wchar code)

References pg_u_isalpha().

◆ wc_isdigit_builtin()

static bool wc_isdigit_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 113 of file pg_locale_builtin.c.

114{
115 return pg_u_isdigit(wc, !locale->builtin.casemap_full);
116}
bool pg_u_isdigit(pg_wchar code, bool posix)

References locale, and pg_u_isdigit().

◆ wc_isgraph_builtin()

static bool wc_isgraph_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 143 of file pg_locale_builtin.c.

144{
145 return pg_u_isgraph(wc);
146}
bool pg_u_isgraph(pg_wchar code)

References pg_u_isgraph().

◆ wc_islower_builtin()

static bool wc_islower_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 137 of file pg_locale_builtin.c.

138{
139 return pg_u_islower(wc);
140}
bool pg_u_islower(pg_wchar code)

References pg_u_islower().

◆ wc_isprint_builtin()

static bool wc_isprint_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 149 of file pg_locale_builtin.c.

150{
151 return pg_u_isprint(wc);
152}
bool pg_u_isprint(pg_wchar code)

References pg_u_isprint().

◆ wc_ispunct_builtin()

static bool wc_ispunct_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 155 of file pg_locale_builtin.c.

156{
157 return pg_u_ispunct(wc, !locale->builtin.casemap_full);
158}
bool pg_u_ispunct(pg_wchar code, bool posix)

References locale, and pg_u_ispunct().

◆ wc_isspace_builtin()

static bool wc_isspace_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 161 of file pg_locale_builtin.c.

162{
163 return pg_u_isspace(wc);
164}
bool pg_u_isspace(pg_wchar code)

References pg_u_isspace().

◆ wc_isupper_builtin()

static bool wc_isupper_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 131 of file pg_locale_builtin.c.

132{
133 return pg_u_isupper(wc);
134}
bool pg_u_isupper(pg_wchar code)

References pg_u_isupper().

◆ wc_tolower_builtin()

static pg_wchar wc_tolower_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 180 of file pg_locale_builtin.c.

181{
182 return unicode_lowercase_simple(wc);
183}
pg_wchar unicode_lowercase_simple(pg_wchar code)
Definition: unicode_case.c:50

References unicode_lowercase_simple().

◆ wc_toupper_builtin()

static pg_wchar wc_toupper_builtin ( pg_wchar  wc,
pg_locale_t  locale 
)
static

Definition at line 174 of file pg_locale_builtin.c.

175{
176 return unicode_uppercase_simple(wc);
177}
pg_wchar unicode_uppercase_simple(pg_wchar code)
Definition: unicode_case.c:66

References unicode_uppercase_simple().

Variable Documentation

◆ ctype_methods_builtin

const struct ctype_methods ctype_methods_builtin
static
Initial value:
= {
.strlower = strlower_builtin,
.strtitle = strtitle_builtin,
.strupper = strupper_builtin,
.strfold = strfold_builtin,
.wc_isdigit = wc_isdigit_builtin,
.wc_isalpha = wc_isalpha_builtin,
.wc_isalnum = wc_isalnum_builtin,
.wc_isupper = wc_isupper_builtin,
.wc_islower = wc_islower_builtin,
.wc_isgraph = wc_isgraph_builtin,
.wc_isprint = wc_isprint_builtin,
.wc_ispunct = wc_ispunct_builtin,
.wc_isspace = wc_isspace_builtin,
.char_is_cased = char_is_cased_builtin,
.wc_tolower = wc_tolower_builtin,
.wc_toupper = wc_toupper_builtin,
}
static pg_wchar wc_toupper_builtin(pg_wchar wc, pg_locale_t locale)
static bool wc_isgraph_builtin(pg_wchar wc, pg_locale_t locale)
static pg_wchar wc_tolower_builtin(pg_wchar wc, pg_locale_t locale)
static bool wc_islower_builtin(pg_wchar wc, pg_locale_t locale)
static bool wc_isprint_builtin(pg_wchar wc, pg_locale_t locale)
static size_t strupper_builtin(char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)
static size_t strlower_builtin(char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)
static bool wc_ispunct_builtin(pg_wchar wc, pg_locale_t locale)
static bool char_is_cased_builtin(char ch, pg_locale_t locale)
static bool wc_isdigit_builtin(pg_wchar wc, pg_locale_t locale)
static bool wc_isupper_builtin(pg_wchar wc, pg_locale_t locale)
static size_t strfold_builtin(char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)
static bool wc_isspace_builtin(pg_wchar wc, pg_locale_t locale)
static bool wc_isalpha_builtin(pg_wchar wc, pg_locale_t locale)
static bool wc_isalnum_builtin(pg_wchar wc, pg_locale_t locale)
static size_t strtitle_builtin(char *dest, size_t destsize, const char *src, ssize_t srclen, pg_locale_t locale)

Definition at line 185 of file pg_locale_builtin.c.

Referenced by create_pg_locale_builtin().

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