Age Owner TLA Line data Source code
1 : /*-------------------------------------------------------------------------
2 : *
3 : * ts_locale.h
4 : * locale compatibility layer for tsearch
5 : *
6 : * Copyright (c) 1998-2026, PostgreSQL Global Development Group
7 : *
8 : * src/include/tsearch/ts_locale.h
9 : *
10 : *-------------------------------------------------------------------------
11 : */
12 : #ifndef __TSLOCALE_H__
13 : #define __TSLOCALE_H__
14 :
15 : #include <ctype.h>
16 : #include <limits.h>
17 : #include <wctype.h>
18 :
19 : #include "lib/stringinfo.h"
20 : #include "mb/pg_wchar.h"
21 : #include "utils/pg_locale.h"
22 :
23 : /* working state for tsearch_readline (should be a local var in caller) */
24 : typedef struct
25 : {
26 : FILE *fp;
27 : const char *filename;
28 : int lineno;
29 : StringInfoData buf; /* current input line, in UTF-8 */
30 : char *curline; /* current input line, in DB's encoding */
31 : /* curline may be NULL, or equal to buf.data, or a palloc'd string */
32 : ErrorContextCallback cb;
33 : } tsearch_readline_state;
34 :
35 : #define TOUCHAR(x) (*((const unsigned char *) (x)))
36 :
37 : /* The second argument of t_iseq() must be a plain ASCII character */
38 : #define t_iseq(x,c) (TOUCHAR(x) == (unsigned char) (c))
39 :
40 : /* Copy multibyte character of known byte length, return byte length. */
41 : static inline int
67 tmunro@postgresql.or 42 CBC 215141 : ts_copychar_with_len(void *dest, const void *src, int length)
43 : {
44 215141 : memcpy(dest, src, length);
45 215141 : return length;
46 : }
47 :
48 : /* Copy multibyte character from null-terminated string, return byte length. */
49 : static inline int
50 202663 : ts_copychar_cstr(void *dest, const void *src)
51 : {
52 202663 : return ts_copychar_with_len(dest, src, pg_mblen_cstr((const char *) src));
53 : }
54 :
55 : /* Historical macro for the above. */
56 : #define COPYCHAR ts_copychar_cstr
57 :
58 : #define GENERATE_T_ISCLASS_DECL(character_class) \
59 : extern int t_is##character_class##_with_len(const char *ptr, int len); \
60 : extern int t_is##character_class##_cstr(const char *ptr); \
61 : extern int t_is##character_class##_unbounded(const char *ptr); \
62 : \
63 : /* deprecated */ \
64 : extern int t_is##character_class(const char *ptr);
65 :
66 : GENERATE_T_ISCLASS_DECL(alnum);
67 : GENERATE_T_ISCLASS_DECL(alpha);
68 :
69 : extern bool tsearch_readline_begin(tsearch_readline_state *stp,
70 : const char *filename);
71 : extern char *tsearch_readline(tsearch_readline_state *stp);
72 : extern void tsearch_readline_end(tsearch_readline_state *stp);
73 :
74 : #endif /* __TSLOCALE_H__ */
|
