1 /* 2 ********************************************************************** 3 * Copyright (C) 1998-2008, International Business Machines 4 * Corporation and others. All Rights Reserved. 5 ********************************************************************** 6 * 7 * File date.c 8 * 9 * Modification History: 10 * 11 * Date Name Description 12 * 06/11/99 stephen Creation. 13 * 06/16/99 stephen Modified to use uprint. 14 ******************************************************************************* 15 */ 16 17 #include <stdlib.h> 18 #include <stdio.h> 19 #include <string.h> 20 21 #include "unicode/utypes.h" 22 #include "unicode/ustring.h" 23 #include "unicode/uclean.h" 24 25 #include "unicode/ucnv.h" 26 #include "unicode/udat.h" 27 #include "unicode/ucal.h" 28 29 #include "uprint.h" 30 31 int main(int argc, char **argv); 32 33 #if UCONFIG_NO_FORMATTING 34 35 int main(int argc, char **argv) 36 { 37 printf("%s: Sorry, UCONFIG_NO_FORMATTING was turned on (see uconfig.h). No formatting can be done. \n", argv[0]); 38 return 0; 39 } 40 #else 41 42 43 /* Protos */ 44 static void usage(void); 45 static void version(void); 46 static void date(const UChar *tz, UDateFormatStyle style, char *format, UErrorCode *status); 47 48 49 /* The version of date */ 50 #define DATE_VERSION "1.0" 51 52 /* "GMT" */ 53 static const UChar GMT_ID [] = { 0x0047, 0x004d, 0x0054, 0x0000 }; 54 55 56 int 57 main(int argc, 58 char **argv) 59 { 60 int printUsage = 0; 61 int printVersion = 0; 62 int optind = 1; 63 char *arg; 64 const UChar *tz = 0; 65 UDateFormatStyle style = UDAT_DEFAULT; 66 UErrorCode status = U_ZERO_ERROR; 67 char *format = NULL; 68 69 70 /* parse the options */ 71 for(optind = 1; optind < argc; ++optind) { 72 arg = argv[optind]; 73 74 /* version info */ 75 if(strcmp(arg, "-v") == 0 || strcmp(arg, "--version") == 0) { 76 printVersion = 1; 77 } 78 /* usage info */ 79 else if(strcmp(arg, "-h") == 0 || strcmp(arg, "--help") == 0) { 80 printUsage = 1; 81 } 82 /* display date in gmt */ 83 else if(strcmp(arg, "-u") == 0 || strcmp(arg, "--gmt") == 0) { 84 tz = GMT_ID; 85 } 86 /* display date in gmt */ 87 else if(strcmp(arg, "-f") == 0 || strcmp(arg, "--full") == 0) { 88 style = UDAT_FULL; 89 } 90 /* display date in long format */ 91 else if(strcmp(arg, "-l") == 0 || strcmp(arg, "--long") == 0) { 92 style = UDAT_LONG; 93 } 94 /* display date in medium format */ 95 else if(strcmp(arg, "-m") == 0 || strcmp(arg, "--medium") == 0) { 96 style = UDAT_MEDIUM; 97 } 98 /* display date in short format */ 99 else if(strcmp(arg, "-s") == 0 || strcmp(arg, "--short") == 0) { 100 style = UDAT_SHORT; 101 } 102 else if(strcmp(arg, "-F") == 0 || strcmp(arg, "--format") == 0) { 103 if ( optind + 1 < argc ) { 104 optind++; 105 format = argv[optind]; 106 } 107 } 108 /* POSIX.1 says all arguments after -- are not options */ 109 else if(strcmp(arg, "--") == 0) { 110 /* skip the -- */ 111 ++optind; 112 break; 113 } 114 /* unrecognized option */ 115 else if(strncmp(arg, "-", strlen("-")) == 0) { 116 printf("icudate: invalid option -- %s\n", arg+1); 117 printUsage = 1; 118 } 119 /* done with options, display date */ 120 else { 121 break; 122 } 123 } 124 125 /* print usage info */ 126 if(printUsage) { 127 usage(); 128 return 0; 129 } 130 131 /* print version info */ 132 if(printVersion) { 133 version(); 134 return 0; 135 } 136 137 /* print the date */ 138 date(tz, style, format, &status); 139 140 u_cleanup(); 141 return (U_FAILURE(status) ? 1 : 0); 142 } 143 144 /* Usage information */ 145 static void 146 usage() 147 { 148 puts("Usage: icudate [OPTIONS]"); 149 puts("Options:"); 150 puts(" -h, --help Print this message and exit."); 151 puts(" -v, --version Print the version number of date and exit."); 152 puts(" -u, --gmt Display the date in Greenwich Mean Time."); 153 puts(" -f, --full Use full display format."); 154 puts(" -l, --long Use long display format."); 155 puts(" -m, --medium Use medium display format."); 156 puts(" -s, --short Use short display format."); 157 } 158 159 /* Version information */ 160 static void 161 version() 162 { 163 UErrorCode status = U_ZERO_ERROR; 164 const char *tzVer; 165 int len = 256; 166 UChar tzName[256]; 167 printf("icudate version %s, created by Stephen F. Booth.\n", 168 DATE_VERSION); 169 puts(U_COPYRIGHT_STRING); 170 tzVer = ucal_getTZDataVersion(&status); 171 if(U_FAILURE(status)) { 172 tzVer = u_errorName(status); 173 } 174 printf("\n"); 175 printf("ICU Version: %s\n", U_ICU_VERSION); 176 printf("ICU Data (major+min): %s\n", U_ICUDATA_NAME); 177 printf("Default Locale: %s\n", uloc_getDefault()); 178 printf("Time Zone Data Version: %s\n", tzVer); 179 printf("Default Time Zone: "); 180 status = U_ZERO_ERROR; 181 u_init(&status); 182 len = ucal_getDefaultTimeZone(tzName, len, &status); 183 if(U_FAILURE(status)) { 184 printf(" ** Error getting default zone: %s\n", u_errorName(status)); 185 } 186 uprint(tzName, stdout, &status); 187 printf("\n\n"); 188 } 189 190 /* Format the date */ 191 static void 192 date(const UChar *tz, 193 UDateFormatStyle style, 194 char *format, 195 UErrorCode *status) 196 { 197 UChar *s = 0; 198 int32_t len = 0; 199 UDateFormat *fmt; 200 UChar uFormat[100]; 201 202 fmt = udat_open(style, style, 0, tz, -1,NULL,0, status); 203 if ( format != NULL ) { 204 u_charsToUChars(format,uFormat,strlen(format)), 205 udat_applyPattern(fmt,FALSE,uFormat,strlen(format)); 206 } 207 len = udat_format(fmt, ucal_getNow(), 0, len, 0, status); 208 if(*status == U_BUFFER_OVERFLOW_ERROR) { 209 *status = U_ZERO_ERROR; 210 s = (UChar*) malloc(sizeof(UChar) * (len+1)); 211 if(s == 0) goto finish; 212 udat_format(fmt, ucal_getNow(), s, len + 1, 0, status); 213 if(U_FAILURE(*status)) goto finish; 214 } 215 216 /* print the date string */ 217 uprint(s, stdout, status); 218 219 /* print a trailing newline */ 220 printf("\n"); 221 222 finish: 223 udat_close(fmt); 224 free(s); 225 } 226 #endif 227
