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/*-------------------------------------------------------------------------
*
* ts_locale.h
* locale compatibility layer for tsearch
*
* Copyright (c) 1998-2022, PostgreSQL Global Development Group
*
* src/include/tsearch/ts_locale.h
*
*-------------------------------------------------------------------------
*/
#ifndef __TSLOCALE_H__
#define __TSLOCALE_H__
#include <ctype.h>
#include <limits.h>
#include "lib/stringinfo.h"
#include "mb/pg_wchar.h"
#include "utils/pg_locale.h"
/*
* towlower() and friends should be in <wctype.h>, but some pre-C99 systems
* declare them in <wchar.h>, so include that too.
*/
#include <wchar.h>
#ifdef HAVE_WCTYPE_H
#include <wctype.h>
#endif
/* working state for tsearch_readline (should be a local var in caller) */
typedef struct
{
FILE *fp;
const char *filename;
int lineno;
StringInfoData buf; /* current input line, in UTF-8 */
char *curline; /* current input line, in DB's encoding */
/* curline may be NULL, or equal to buf.data, or a palloc'd string */
ErrorContextCallback cb;
} tsearch_readline_state;
#define TOUCHAR(x) (*((const unsigned char *) (x)))
/* The second argument of t_iseq() must be a plain ASCII character */
#define t_iseq(x,c) (TOUCHAR(x) == (unsigned char) (c))
#define COPYCHAR(d,s) memcpy(d, s, pg_mblen(s))
extern int t_isdigit(const char *ptr);
extern int t_isspace(const char *ptr);
extern int t_isalpha(const char *ptr);
extern int t_isprint(const char *ptr);
extern char *lowerstr(const char *str);
extern char *lowerstr_with_len(const char *str, int len);
extern bool tsearch_readline_begin(tsearch_readline_state *stp,
const char *filename);
extern char *tsearch_readline(tsearch_readline_state *stp);
extern void tsearch_readline_end(tsearch_readline_state *stp);
#endif /* __TSLOCALE_H__ */
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