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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_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)
 

Variables

 PG_MODULE_MAGIC
 

Function Documentation

◆ euc_cn2mic()

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

Definition at line 76 of file euc_cn_and_mic.c.

77{
78 const unsigned char *start = euc;
79 int c1;
80
81 while (len > 0)
82 {
83 c1 = *euc;
84 if (IS_HIGHBIT_SET(c1))
85 {
86 if (len < 2 || !IS_HIGHBIT_SET(euc[1]))
87 {
88 if (noError)
89 break;
90 report_invalid_encoding(PG_EUC_CN, (const char *) euc, len);
91 }
92 *p++ = LC_GB2312_80;
93 *p++ = c1;
94 *p++ = euc[1];
95 euc += 2;
96 len -= 2;
97 }
98 else
99 { /* should be ASCII */
100 if (c1 == 0)
101 {
102 if (noError)
103 break;
104 report_invalid_encoding(PG_EUC_CN, (const char *) euc, len);
105 }
106 *p++ = c1;
107 euc++;
108 len--;
109 }
110 }
111 *p = '\0';
112
113 return euc - start;
114}
#define IS_HIGHBIT_SET(ch)
Definition: c.h:1112
return str start
void report_invalid_encoding(int encoding, const char *mbstr, int len)
Definition: mbutils.c:1698
const void size_t len
@ PG_EUC_CN
Definition: pg_wchar.h:228
#define LC_GB2312_80
Definition: pg_wchar.h:133

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 41 of file euc_cn_and_mic.c.

42{
43 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
44 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
45 int len = PG_GETARG_INT32(4);
46 bool noError = PG_GETARG_BOOL(5);
47 int converted;
48
50
51 converted = euc_cn2mic(src, dest, len, noError);
52
53 PG_RETURN_INT32(converted);
54}
static int euc_cn2mic(const unsigned char *euc, unsigned char *p, int len, bool noError)
#define PG_GETARG_CSTRING(n)
Definition: fmgr.h:277
#define PG_RETURN_INT32(x)
Definition: fmgr.h:354
#define PG_GETARG_INT32(n)
Definition: fmgr.h:269
#define PG_GETARG_BOOL(n)
Definition: fmgr.h:274
@ PG_MULE_INTERNAL
Definition: pg_wchar.h:233
#define CHECK_ENCODING_CONVERSION_ARGS(srcencoding, destencoding)
Definition: pg_wchar.h:507

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 120 of file euc_cn_and_mic.c.

121{
122 const unsigned char *start = mic;
123 int c1;
124
125 while (len > 0)
126 {
127 c1 = *mic;
128 if (IS_HIGHBIT_SET(c1))
129 {
130 if (c1 != LC_GB2312_80)
131 {
132 if (noError)
133 break;
135 (const char *) mic, len);
136 }
137 if (len < 3 || !IS_HIGHBIT_SET(mic[1]) || !IS_HIGHBIT_SET(mic[2]))
138 {
139 if (noError)
140 break;
142 (const char *) mic, len);
143 }
144 mic++;
145 *p++ = *mic++;
146 *p++ = *mic++;
147 len -= 3;
148 }
149 else
150 { /* should be ASCII */
151 if (c1 == 0)
152 {
153 if (noError)
154 break;
156 (const char *) mic, len);
157 }
158 *p++ = c1;
159 mic++;
160 len--;
161 }
162 }
163 *p = '\0';
164
165 return mic - start;
166}
void report_untranslatable_char(int src_encoding, int dest_encoding, const char *mbstr, int len)
Definition: mbutils.c:1730

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 57 of file euc_cn_and_mic.c.

58{
59 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
60 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
61 int len = PG_GETARG_INT32(4);
62 bool noError = PG_GETARG_BOOL(5);
63 int converted;
64
66
67 converted = mic2euc_cn(src, dest, len, noError);
68
69 PG_RETURN_INT32(converted);
70}
static int mic2euc_cn(const unsigned char *mic, unsigned char *p, int len, bool noError)

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  )

Variable Documentation

◆ PG_MODULE_MAGIC

PG_MODULE_MAGIC

Definition at line 18 of file euc_cn_and_mic.c.