LCOV - code coverage report
Current view: top level - src/backend/utils/mb/conversion_procs/utf8_and_win - utf8_and_win.c (source / functions) Hit Total Coverage
Test: PostgreSQL 12beta1 Lines: 23 25 92.0 %
Date: 2019-06-16 14:06:46 Functions: 5 5 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  *    WIN <--> UTF8
       4             :  *
       5             :  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
       6             :  * Portions Copyright (c) 1994, Regents of the University of California
       7             :  *
       8             :  * IDENTIFICATION
       9             :  *    src/backend/utils/mb/conversion_procs/utf8_and_win/utf8_and_win.c
      10             :  *
      11             :  *-------------------------------------------------------------------------
      12             :  */
      13             : 
      14             : #include "postgres.h"
      15             : #include "fmgr.h"
      16             : #include "mb/pg_wchar.h"
      17             : #include "../../Unicode/utf8_to_win1250.map"
      18             : #include "../../Unicode/utf8_to_win1251.map"
      19             : #include "../../Unicode/utf8_to_win1252.map"
      20             : #include "../../Unicode/utf8_to_win1253.map"
      21             : #include "../../Unicode/utf8_to_win1254.map"
      22             : #include "../../Unicode/utf8_to_win1255.map"
      23             : #include "../../Unicode/utf8_to_win1256.map"
      24             : #include "../../Unicode/utf8_to_win1257.map"
      25             : #include "../../Unicode/utf8_to_win1258.map"
      26             : #include "../../Unicode/utf8_to_win866.map"
      27             : #include "../../Unicode/utf8_to_win874.map"
      28             : #include "../../Unicode/win1250_to_utf8.map"
      29             : #include "../../Unicode/win1251_to_utf8.map"
      30             : #include "../../Unicode/win1252_to_utf8.map"
      31             : #include "../../Unicode/win1253_to_utf8.map"
      32             : #include "../../Unicode/win1254_to_utf8.map"
      33             : #include "../../Unicode/win1255_to_utf8.map"
      34             : #include "../../Unicode/win1256_to_utf8.map"
      35             : #include "../../Unicode/win1257_to_utf8.map"
      36             : #include "../../Unicode/win866_to_utf8.map"
      37             : #include "../../Unicode/win874_to_utf8.map"
      38             : #include "../../Unicode/win1258_to_utf8.map"
      39             : 
      40           4 : PG_MODULE_MAGIC;
      41             : 
      42           4 : PG_FUNCTION_INFO_V1(win_to_utf8);
      43           4 : PG_FUNCTION_INFO_V1(utf8_to_win);
      44             : 
      45             : /* ----------
      46             :  * conv_proc(
      47             :  *      INTEGER,    -- source encoding id
      48             :  *      INTEGER,    -- destination encoding id
      49             :  *      CSTRING,    -- source string (null terminated C string)
      50             :  *      CSTRING,    -- destination string (null terminated C string)
      51             :  *      INTEGER     -- source string length
      52             :  * ) returns VOID;
      53             :  * ----------
      54             :  */
      55             : 
      56             : typedef struct
      57             : {
      58             :     pg_enc      encoding;
      59             :     const pg_mb_radix_tree *map1;   /* to UTF8 map name */
      60             :     const pg_mb_radix_tree *map2;   /* from UTF8 map name */
      61             : } pg_conv_map;
      62             : 
      63             : static const pg_conv_map maps[] = {
      64             :     {PG_WIN866, &win866_to_unicode_tree, &win866_from_unicode_tree},
      65             :     {PG_WIN874, &win874_to_unicode_tree, &win874_from_unicode_tree},
      66             :     {PG_WIN1250, &win1250_to_unicode_tree, &win1250_from_unicode_tree},
      67             :     {PG_WIN1251, &win1251_to_unicode_tree, &win1251_from_unicode_tree},
      68             :     {PG_WIN1252, &win1252_to_unicode_tree, &win1252_from_unicode_tree},
      69             :     {PG_WIN1253, &win1253_to_unicode_tree, &win1253_from_unicode_tree},
      70             :     {PG_WIN1254, &win1254_to_unicode_tree, &win1254_from_unicode_tree},
      71             :     {PG_WIN1255, &win1255_to_unicode_tree, &win1255_from_unicode_tree},
      72             :     {PG_WIN1256, &win1256_to_unicode_tree, &win1256_from_unicode_tree},
      73             :     {PG_WIN1257, &win1257_to_unicode_tree, &win1257_from_unicode_tree},
      74             :     {PG_WIN1258, &win1258_to_unicode_tree, &win1258_from_unicode_tree},
      75             : };
      76             : 
      77             : Datum
      78          44 : win_to_utf8(PG_FUNCTION_ARGS)
      79             : {
      80          44 :     int         encoding = PG_GETARG_INT32(0);
      81          44 :     unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
      82          44 :     unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
      83          44 :     int         len = PG_GETARG_INT32(4);
      84             :     int         i;
      85             : 
      86          44 :     CHECK_ENCODING_CONVERSION_ARGS(-1, PG_UTF8);
      87             : 
      88         264 :     for (i = 0; i < lengthof(maps); i++)
      89             :     {
      90         264 :         if (encoding == maps[i].encoding)
      91             :         {
      92          44 :             LocalToUtf(src, len, dest,
      93             :                        maps[i].map1,
      94             :                        NULL, 0,
      95             :                        NULL,
      96             :                        encoding);
      97          44 :             PG_RETURN_VOID();
      98             :         }
      99             :     }
     100             : 
     101           0 :     ereport(ERROR,
     102             :             (errcode(ERRCODE_INTERNAL_ERROR),
     103             :              errmsg("unexpected encoding ID %d for WIN character sets",
     104             :                     encoding)));
     105             : 
     106             :     PG_RETURN_VOID();
     107             : }
     108             : 
     109             : Datum
     110          44 : utf8_to_win(PG_FUNCTION_ARGS)
     111             : {
     112          44 :     int         encoding = PG_GETARG_INT32(1);
     113          44 :     unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
     114          44 :     unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
     115          44 :     int         len = PG_GETARG_INT32(4);
     116             :     int         i;
     117             : 
     118          44 :     CHECK_ENCODING_CONVERSION_ARGS(PG_UTF8, -1);
     119             : 
     120         264 :     for (i = 0; i < lengthof(maps); i++)
     121             :     {
     122         264 :         if (encoding == maps[i].encoding)
     123             :         {
     124          44 :             UtfToLocal(src, len, dest,
     125             :                        maps[i].map2,
     126             :                        NULL, 0,
     127             :                        NULL,
     128             :                        encoding);
     129          44 :             PG_RETURN_VOID();
     130             :         }
     131             :     }
     132             : 
     133           0 :     ereport(ERROR,
     134             :             (errcode(ERRCODE_INTERNAL_ERROR),
     135             :              errmsg("unexpected encoding ID %d for WIN character sets",
     136             :                     encoding)));
     137             : 
     138             :     PG_RETURN_VOID();
     139             : }

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