encnames.c File Reference

#include "c.h"
#include <ctype.h>
#include <unistd.h>
#include "mb/pg_wchar.h"

Include dependency graph for encnames.c:

Go to the source code of this file.

Data Structures
struct	pg_encname

Macros
#define	DEF_ENC2NAME(name, codepage)   { #name, PG_##name }

Typedefs
typedef struct pg_encname	pg_encname

Functions
	StaticAssertDecl (lengthof(pg_enc2icu_tbl)==PG_ENCODING_BE_LAST+1, "pg_enc2icu_tbl incomplete")
bool	is_encoding_supported_by_icu (int encoding)
const char *	get_encoding_name_for_icu (int encoding)
int	pg_valid_client_encoding (const char *name)
int	pg_valid_server_encoding (const char *name)
int	pg_valid_server_encoding_id (int encoding)
static char *	clean_encoding_name (const char *key, char *newkey)
int	pg_char_to_encoding (const char *name)
const char *	pg_encoding_to_char (int encoding)

Variables
static const pg_encname	pg_encname_tbl []
const pg_enc2name	pg_enc2name_tbl []
const char *	pg_enc2gettext_tbl []
static const char *const	pg_enc2icu_tbl []

Macro Definition Documentation

DEF_ENC2NAME

#define DEF_ENC2NAME	(		name,
			codepage
	)		{ #name, PG_##name }

Definition at line 303 of file encnames.c.

Typedef Documentation

pg_encname

typedef struct pg_encname pg_encname

Function Documentation

clean_encoding_name()

static char* clean_encoding_name ( const char *  key, char *  newkey  )

static

Definition at line 524 of file encnames.c.

{
    const char *p;
    char       *np;
 
    for (p = key, np = newkey; *p != '\0'; p++)
    {
        if (isalnum((unsigned char) *p))
        {
            if (*p >= 'A' && *p <= 'Z')
                *np++ = *p + 'a' - 'A';
            else
                *np++ = *p;
        }
    }
    *np = '\0';
    return newkey;
}

References sort-test::key.

Referenced by pg_char_to_encoding().

get_encoding_name_for_icu()

const char* get_encoding_name_for_icu

(

int

encoding

)

Definition at line 472 of file encnames.c.

{
    if (!PG_VALID_BE_ENCODING(encoding))
        return NULL;
    return pg_enc2icu_tbl[encoding];
}

References encoding, pg_enc2icu_tbl, and PG_VALID_BE_ENCODING.

is_encoding_supported_by_icu()

bool is_encoding_supported_by_icu

(

int

encoding

)

Definition at line 461 of file encnames.c.

{
    if (!PG_VALID_BE_ENCODING(encoding))
        return false;
    return (pg_enc2icu_tbl[encoding] != NULL);
}

References encoding, pg_enc2icu_tbl, and PG_VALID_BE_ENCODING.

Referenced by check_icu_locale_encoding(), createdb(), DefineCollation(), and lookup_collation().

pg_char_to_encoding()

int pg_char_to_encoding

(

const char *

name

)

Definition at line 549 of file encnames.c.

{
    unsigned int nel = lengthof(pg_encname_tbl);
    const pg_encname *base = pg_encname_tbl,
               *last = base + nel - 1,
               *position;
    int         result;
    char        buff[NAMEDATALEN],
               *key;
 
    if (name == NULL || *name == '\0')
        return -1;
 
    if (strlen(name) >= NAMEDATALEN)
        return -1;              /* it's certainly not in the table */
 
    key = clean_encoding_name(name, buff);
 
    while (last >= base)
    {
        position = base + ((last - base) >> 1);
        result = key[0] - position->name[0];
 
        if (result == 0)
        {
            result = strcmp(key, position->name);
            if (result == 0)
                return position->encoding;
        }
        if (result < 0)
            last = position - 1;
        else
            base = position + 1;
    }
    return -1;
}

References clean_encoding_name(), sort-test::key, lengthof, name, NAMEDATALEN, and pg_encname_tbl.

Referenced by pg_valid_client_encoding(), and pg_valid_server_encoding().

pg_encoding_to_char()

const char* pg_encoding_to_char

(

int

encoding

)

Definition at line 587 of file encnames.c.

{
    if (PG_VALID_ENCODING(encoding))
    {
        const pg_enc2name *p = &pg_enc2name_tbl[encoding];
 
        Assert(encoding == p->encoding);
        return p->name;
    }
    return "";
}

References Assert, encoding, pg_enc2name::encoding, pg_enc2name::name, pg_enc2name_tbl, and PG_VALID_ENCODING.

pg_valid_client_encoding()

int pg_valid_client_encoding

(

const char *

name

)

Definition at line 485 of file encnames.c.

{
    int         enc;
 
    if ((enc = pg_char_to_encoding(name)) < 0)
        return -1;
 
    if (!PG_VALID_FE_ENCODING(enc))
        return -1;
 
    return enc;
}

References enc, name, pg_char_to_encoding(), and PG_VALID_FE_ENCODING.

Referenced by check_client_encoding().

pg_valid_server_encoding()

int pg_valid_server_encoding

(

const char *

name

)

Definition at line 499 of file encnames.c.

{
    int         enc;
 
    if ((enc = pg_char_to_encoding(name)) < 0)
        return -1;
 
    if (!PG_VALID_BE_ENCODING(enc))
        return -1;
 
    return enc;
}

References enc, name, pg_char_to_encoding(), and PG_VALID_BE_ENCODING.

pg_valid_server_encoding_id()

int pg_valid_server_encoding_id

(

int

encoding

)

Definition at line 513 of file encnames.c.

{
    return PG_VALID_BE_ENCODING(encoding);
}

References encoding, and PG_VALID_BE_ENCODING.

StaticAssertDecl()

StaticAssertDecl	(	lengthof(pg_enc2icu_tbl)	= =PG_ENCODING_BE_LAST+1,
		"pg_enc2icu_tbl incomplete"
	)

Variable Documentation

pg_enc2gettext_tbl

const char* pg_enc2gettext_tbl[]

Definition at line 360 of file encnames.c.

pg_enc2icu_tbl

const char* const pg_enc2icu_tbl[]

static

Definition at line 414 of file encnames.c.

Referenced by get_encoding_name_for_icu(), and is_encoding_supported_by_icu().

pg_enc2name_tbl

const pg_enc2name pg_enc2name_tbl[]

Definition at line 308 of file encnames.c.

Referenced by check_encoding_conversion_args(), InitializeClientEncoding(), pg_any_to_server(), pg_encoding_to_char(), pg_unicode_to_server(), report_invalid_encoding(), report_untranslatable_char(), SetClientEncoding(), SetDatabaseEncoding(), and SetMessageEncoding().

pg_encname_tbl

const pg_encname pg_encname_tbl[]

static

Definition at line 39 of file encnames.c.

Referenced by pg_char_to_encoding().