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107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/* This is part of the netCDF package.
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Copyright 2006 University Corporation for Atmospheric Research/Unidata.
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See COPYRIGHT file for conditions of use.
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This is a very simple example which writes a netCDF file with
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Unicode names encoded with UTF-8.
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$Id: tst_unicode.c,v 1.12 2008/10/20 01:48:08 ed Exp $
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*/
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#include <nc_tests.h>
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#include "err_macros.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <netcdf.h>
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/* The data file we will create. */
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#define FILE7_NAME "tst_unicode.nc"
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#define UNITS "units"
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#define NDIMS 1
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#define UTF8_BYTES 18
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int
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main(int argc, char **argv)
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{
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int ncid, dimid, varid;
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int dimids[NDIMS];
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unsigned char name_utf8[] = {
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0xCE, 0x9A, /* GREEK CAPITAL LETTER KAPPA : 2-bytes utf8 */
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0xCE, 0xB1, /* GREEK SMALL LETTER LAMBDA : 2-bytes utf8 */
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0xCE, 0xBB, /* GREEK SMALL LETTER ALPHA : 2-bytes utf8 */
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0xCE, 0xB7, /* GREEK SMALL LETTER ETA : 2-bytes utf8 */
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0xCE, 0xBC, /* GREEK SMALL LETTER MU : 2-bytes utf8 */
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0xE1, 0xBD, 0xB3, /* GREEK SMALL LETTER EPSILON
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WITH TONOS : 3-bytes utf8 */
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0xCF, 0x81, /* GREEK SMALL LETTER RHO : 2-bytes utf8 */
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0xCE, 0xB1, 0x00 /* GREEK SMALL LETTER ALPHA : 2-bytes utf8 */
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};
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/* Name used for dimension, variable, and attribute value */
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#define UNAME ((char *) name_utf8)
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#define UNAMELEN (sizeof name_utf8)
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char name_in[UNAMELEN + 1], strings_in[UNAMELEN + 1];
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nc_type att_type;
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size_t att_len;
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printf("\n*** Testing UTF-8.\n");
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printf("*** creating UTF-8 test file %s...", FILE7_NAME);
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if (nc_create(FILE7_NAME, NC_NETCDF4, &ncid)) ERR;
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/* Define dimension with Unicode UTF-8 encoded name */
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if (nc_def_dim(ncid, UNAME, UTF8_BYTES, &dimid)) ERR;
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dimids[0] = dimid;
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/* Define variable with same name */
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if (nc_def_var(ncid, UNAME, NC_CHAR, NDIMS, dimids, &varid)) ERR;
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/* Create string attribute with same value */
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if (nc_put_att_text(ncid, varid, UNITS, UNAMELEN, UNAME)) ERR;
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if (nc_enddef(ncid)) ERR;
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/* Write string data, UTF-8 encoded, to the file */
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if (nc_put_var_text(ncid, varid, UNAME)) ERR;
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if (nc_close(ncid)) ERR;
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/* Check it out. */
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/* Reopen the file. */
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if (nc_open(FILE7_NAME, NC_NOWRITE, &ncid)) ERR;
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if (nc_inq_varid(ncid, UNAME, &varid)) ERR;
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if (nc_inq_varname(ncid, varid, name_in)) ERR;
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{
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/* Note, name was normalized before storing, so retrieved name
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won't match original unnormalized name. Check that we get
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normalized version, instead. */
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/* NFC normalized UTF-8 for Unicode 8-character "Hello" in Greek */
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unsigned char norm_utf8[] = {
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0xCE, 0x9A, /* GREEK CAPITAL LETTER KAPPA : 2-bytes utf8 */
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0xCE, 0xB1, /* GREEK SMALL LETTER LAMBDA : 2-bytes utf8 */
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0xCE, 0xBB, /* GREEK SMALL LETTER ALPHA : 2-bytes utf8 */
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0xCE, 0xB7, /* GREEK SMALL LETTER ETA : 2-bytes utf8 */
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0xCE, 0xBC, /* GREEK SMALL LETTER MU : 2-bytes utf8 */
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0xCE, 0xAD, /* GREEK SMALL LETTER EPSILON WITH TONOS
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: 2-bytes utf8 */
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0xCF, 0x81, /* GREEK SMALL LETTER RHO : 2-bytes utf8 */
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0xCE, 0xB1, /* GREEK SMALL LETTER ALPHA : 2-bytes utf8 */
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0x00
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};
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#define NNAME ((char *) norm_utf8)
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#define NNAMELEN (sizeof norm_utf8)
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if (strncmp(NNAME, name_in, NNAMELEN) != 0) ERR;
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}
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if (nc_inq_att(ncid, varid, UNITS, &att_type, &att_len)) ERR;
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if (att_type != NC_CHAR || att_len != UNAMELEN) ERR;
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if (nc_get_att_text(ncid, varid, UNITS, strings_in)) ERR;
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strings_in[att_len] = '\0'; /* null terminate, because nc_get_att_text doesn't */
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if (strncmp(UNAME, strings_in, UNAMELEN) != 0) ERR;
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if (nc_close(ncid)) ERR;
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SUMMARIZE_ERR;
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FINAL_RESULTS;
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}
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