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annotate test/testiconv.c @ 1502:d403a39389da

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UTF-32 by definition can't handle characters higher than 0x10FFFF
author Sam Lantinga <slouken@libsdl.org>
date Mon, 13 Mar 2006 01:16:16 +0000
parents 73dc5d39bbf8
children 4d241ea8a1cd
rev   line source
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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1
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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2 #include <stdio.h>
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3
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4 #include "SDL.h"
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5
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6 static SDL_bool testutf1632(char *data)
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7 {
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8 Uint32 *p = (Uint32 *)data;
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9 while(*p) {
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10 if ( *p > 0x10FFFF ) {
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11 return SDL_FALSE;
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12 }
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13 ++p;
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14 }
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15 return SDL_TRUE;
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16 }
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17
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18 static size_t widelen(char *data)
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19 {
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20 size_t len = 0;
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21 Uint32 *p = (Uint32 *)data;
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22 while(*p++) {
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23 ++len;
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24 }
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25 return len;
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26 }
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27
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28 int main(int argc, char *argv[])
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29 {
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30 const char * formats[] = {
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31 "UTF8",
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32 "UTF-8",
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33 "UTF16BE",
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34 "UTF-16BE",
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35 "UTF16LE",
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36 "UTF-16LE",
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37 "UTF32BE",
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38 "UTF-32BE",
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39 "UTF32LE",
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40 "UTF-32LE",
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41 "UCS4",
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42 "UCS-4",
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43 };
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44 char buffer[BUFSIZ];
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45 char *ucs4;
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46 char *test[2];
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47 int i, j, index = 0;
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48 FILE *file;
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49 int errors = 0;
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50
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51 if ( !argv[1] ) {
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52 argv[1] = "utf8.txt";
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53 }
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54 file = fopen(argv[1], "rb");
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55 if ( !file ) {
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56 fprintf(stderr, "Unable to open %s\n", argv[1]);
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57 return (1);
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58 }
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59
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60 while ( fgets(buffer, sizeof(buffer), file) ) {
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61 /* Convert to UCS-4 */
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62 ucs4 = SDL_iconv_string("UCS-4", "UTF-8", buffer, SDL_strlen(buffer)+1);
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63 size_t len = (widelen(ucs4)+1)*4;
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64 for ( i = 0; i < SDL_arraysize(formats); ++i ) {
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65 if ( (SDL_strncasecmp(formats[i], "UTF16", 5) == 0 ||
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66 SDL_strncasecmp(formats[i], "UTF-16", 6) == 0 ||
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67 SDL_strncasecmp(formats[i], "UTF32", 5) == 0 ||
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68 SDL_strncasecmp(formats[i], "UTF-32", 6) == 0) &&
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69 !testutf1632(ucs4) ) {
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70 continue;
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71 }
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72 test[0] = SDL_iconv_string(formats[i], "UCS-4", ucs4, len);
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73 test[1] = SDL_iconv_string("UCS-4", formats[i], test[0], len);
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74 if ( SDL_memcmp(test[1], ucs4, len) != 0 ) {
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75 fprintf(stderr, "FAIL: %s\n", formats[i]);
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76 ++errors;
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77 }
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78 SDL_free(test[0]);
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79 SDL_free(test[1]);
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80 }
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81 test[0] = SDL_iconv_string("UTF-8", "UCS-4", ucs4, len);
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82 SDL_free(ucs4);
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83 fputs(test[0], stdout);
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84 SDL_free(test[0]);
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85 }
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86 return (errors ? errors + 1 : 0);
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87 }