euc_cn_and_mic.c File Reference

#include "postgres.h"
#include "fmgr.h"
#include "mb/pg_wchar.h"

Include dependency graph for euc_cn_and_mic.c:

Go to the source code of this file.

Functions
	PG_MODULE_MAGIC_EXT (.name="euc_cn_and_mic",.version=PG_VERSION)
	PG_FUNCTION_INFO_V1 (euc_cn_to_mic)
	PG_FUNCTION_INFO_V1 (mic_to_euc_cn)
static int	euc_cn2mic (const unsigned char *euc, unsigned char *p, int len, bool noError)
static int	mic2euc_cn (const unsigned char *mic, unsigned char *p, int len, bool noError)
Datum	euc_cn_to_mic (PG_FUNCTION_ARGS)
Datum	mic_to_euc_cn (PG_FUNCTION_ARGS)

Function Documentation

euc_cn2mic()

static int euc_cn2mic ( const unsigned char *  euc, unsigned char *  p, int  len, bool  noError  )

static

Definition at line 79 of file euc_cn_and_mic.c.

{
    const unsigned char *start = euc;
    int         c1;
 
    while (len > 0)
    {
        c1 = *euc;
        if (IS_HIGHBIT_SET(c1))
        {
            if (len < 2 || !IS_HIGHBIT_SET(euc[1]))
            {
                if (noError)
                    break;
                report_invalid_encoding(PG_EUC_CN, (const char *) euc, len);
            }
            *p++ = LC_GB2312_80;
            *p++ = c1;
            *p++ = euc[1];
            euc += 2;
            len -= 2;
        }
        else
        {                       /* should be ASCII */
            if (c1 == 0)
            {
                if (noError)
                    break;
                report_invalid_encoding(PG_EUC_CN, (const char *) euc, len);
            }
            *p++ = c1;
            euc++;
            len--;
        }
    }
    *p = '\0';
 
    return euc - start;
}

References IS_HIGHBIT_SET, LC_GB2312_80, len, PG_EUC_CN, report_invalid_encoding(), and start.

Referenced by euc_cn_to_mic().

euc_cn_to_mic()

Datum euc_cn_to_mic

(

PG_FUNCTION_ARGS

)

Definition at line 44 of file euc_cn_and_mic.c.

{
    unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
    unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
    int         len = PG_GETARG_INT32(4);
    bool        noError = PG_GETARG_BOOL(5);
    int         converted;
 
    CHECK_ENCODING_CONVERSION_ARGS(PG_EUC_CN, PG_MULE_INTERNAL);
 
    converted = euc_cn2mic(src, dest, len, noError);
 
    PG_RETURN_INT32(converted);
}

References CHECK_ENCODING_CONVERSION_ARGS, generate_unaccent_rules::dest, euc_cn2mic(), len, PG_EUC_CN, PG_GETARG_BOOL, PG_GETARG_CSTRING, PG_GETARG_INT32, PG_MULE_INTERNAL, and PG_RETURN_INT32.

mic2euc_cn()

static int mic2euc_cn ( const unsigned char *  mic, unsigned char *  p, int  len, bool  noError  )

static

Definition at line 123 of file euc_cn_and_mic.c.

{
    const unsigned char *start = mic;
    int         c1;
 
    while (len > 0)
    {
        c1 = *mic;
        if (IS_HIGHBIT_SET(c1))
        {
            if (c1 != LC_GB2312_80)
            {
                if (noError)
                    break;
                report_untranslatable_char(PG_MULE_INTERNAL, PG_EUC_CN,
                                           (const char *) mic, len);
            }
            if (len < 3 || !IS_HIGHBIT_SET(mic[1]) || !IS_HIGHBIT_SET(mic[2]))
            {
                if (noError)
                    break;
                report_invalid_encoding(PG_MULE_INTERNAL,
                                        (const char *) mic, len);
            }
            mic++;
            *p++ = *mic++;
            *p++ = *mic++;
            len -= 3;
        }
        else
        {                       /* should be ASCII */
            if (c1 == 0)
            {
                if (noError)
                    break;
                report_invalid_encoding(PG_MULE_INTERNAL,
                                        (const char *) mic, len);
            }
            *p++ = c1;
            mic++;
            len--;
        }
    }
    *p = '\0';
 
    return mic - start;
}

References IS_HIGHBIT_SET, LC_GB2312_80, len, PG_EUC_CN, PG_MULE_INTERNAL, report_invalid_encoding(), report_untranslatable_char(), and start.

Referenced by mic_to_euc_cn().

mic_to_euc_cn()

Datum mic_to_euc_cn

(

PG_FUNCTION_ARGS

)

Definition at line 60 of file euc_cn_and_mic.c.

{
    unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
    unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
    int         len = PG_GETARG_INT32(4);
    bool        noError = PG_GETARG_BOOL(5);
    int         converted;
 
    CHECK_ENCODING_CONVERSION_ARGS(PG_MULE_INTERNAL, PG_EUC_CN);
 
    converted = mic2euc_cn(src, dest, len, noError);
 
    PG_RETURN_INT32(converted);
}

References CHECK_ENCODING_CONVERSION_ARGS, generate_unaccent_rules::dest, len, mic2euc_cn(), PG_EUC_CN, PG_GETARG_BOOL, PG_GETARG_CSTRING, PG_GETARG_INT32, PG_MULE_INTERNAL, and PG_RETURN_INT32.

PG_FUNCTION_INFO_V1() [1/2]

PG_FUNCTION_INFO_V1

(

euc_cn_to_mic

)

PG_FUNCTION_INFO_V1() [2/2]

PG_FUNCTION_INFO_V1

(

mic_to_euc_cn

)

PG_MODULE_MAGIC_EXT()

PG_MODULE_MAGIC_EXT	(	.	name = "euc_cn_and_mic",
		.	version = PG_VERSION
	)