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/* -*- Mode: c; c-basic-offset: 2 -*-
*
* raptor_nfc_test.c - Raptor Unicode NFC validation check
*
* $Id$
*
* Copyright (C) 2004 David Beckett - http://purl.org/net/dajobe/
* Institute for Learning and Research Technology - http://www.ilrt.org/
* University of Bristol - http://www.bristol.ac.uk/
*
* This package is Free Software or Open Source available under the
* following licenses (these are alternatives):
* 1. GNU Lesser General Public License (LGPL)
* 2. GNU General Public License (GPL)
* 3. Mozilla Public License (MPL)
*
* See LICENSE.html or LICENSE.txt at the top of this package for the
* full license terms.
*
*/
#ifdef HAVE_CONFIG_H
#include <raptor_config.h>
#endif
#ifdef WIN32
#include <win32_raptor_config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <ctype.h> /* for isprint() */
#include <stdarg.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
/* Raptor includes */
#include "raptor.h"
#include "raptor_internal.h"
#include "raptor_nfc.h"
#undef RAPTOR_NFC_DECODE_DEBUG
/**
* utf8_string: destination utf8 buffer (FIXME big enough!)
* unicode_string: first char of string
* end: last char of unicode_string
*/
static int
decode_to_utf8(unsigned char *utf8_string, size_t utf8_string_length,
const char *unicode_string, const char *end)
{
unsigned char *u=utf8_string;
const char *p=unicode_string;
#ifdef RAPTOR_NFC_DECODE_DEBUG
fputs("decode_to_utf8: string '", stderr);
fwrite(unicode_string, sizeof(char), (end-unicode_string)+1, stderr);
fputs("' converts to:\n ", stderr);
#endif
while(p < end) {
unsigned long c=0;
char *endptr;
if(*p == ' ') {
p++;
continue;
}
c=(unsigned long)strtol(p, &endptr, 16);
#ifdef RAPTOR_NFC_DECODE_DEBUG
fprintf(stderr, "U+%04lX ", c);
#endif
p=(unsigned char*)endptr;
u+= raptor_unicode_char_to_utf8(c, u);
if((u-utf8_string) > utf8_string_length) {
fprintf(stderr,
"decode_to_utf8 overwote utf8_string buffer at byte %d\n",
(u-utf8_string));
abort();
}
}
#ifdef RAPTOR_NFC_DECODE_DEBUG
fputs("\n", stderr);
#endif
return u-utf8_string;
}
static void
utf8_print(const unsigned char *input, int length, FILE *stream)
{
int i=0;
while(i<length && *input) {
unsigned long c;
int size=raptor_utf8_to_unicode_char(&c, input, length-i);
if(size <= 0)
return;
if(i)
fputc(' ', stream);
fprintf(stream, "U+%04X", (int)c);
input += size;
i += size;
}
}
int
main (int argc, char *argv[])
{
char *program;
static const char *filename="NormalizationTest.txt";
FILE *fh;
int rc=0;
unsigned int line=1;
size_t max_c2_len=0;
size_t max_c4_len=0;
int passes=0;
int fails=0;
program=argv[0];
if(1) {
char *p;
if((p=strrchr(program, '/')))
program=p+1;
else if((p=strrchr(program, '\\')))
program=p+1;
argv[0]=program;
}
fh=fopen(filename, "r");
if(!fh) {
fprintf(stderr, "%s: file '%s' open failed - %s\n",
program, filename, strerror(errno));
return 1;
}
#define LINE_BUFFER_SIZE 1024
/* FIXME big enough for Unicode 4 (c2 max 16; c4 max 33) */
#define UNISTR_SIZE 40
for(;!feof(fh); line++) {
char buffer[LINE_BUFFER_SIZE];
char *p, *start;
unsigned char nfc1[UNISTR_SIZE];
unsigned char nfc2[UNISTR_SIZE];
size_t nfc1_len, nfc2_len;
int nfc_rc;
int error;
p=fgets(buffer, LINE_BUFFER_SIZE, fh);
if(!p) {
if(ferror(fh)) {
fprintf(stderr, "%s: file '%s' read failed - %s\n",
program, filename, strerror(errno));
rc=1;
break;
}
/* assume feof */
break;
};
#if 0
fprintf(stderr, "%s:%d: line '%s'\n", program, line, buffer);
#endif
/* skip lines */
if(*p == '@' || *p == '#')
continue;
/* skip column 1 */
while(*p++ != ';')
;
start=p;
/* find end column 2 */
while(*p++ != ';')
;
nfc1_len=decode_to_utf8(nfc1, UNISTR_SIZE, start, p-1);
if(nfc1_len > max_c2_len)
max_c2_len=nfc1_len;
/* skip column 3 */
while(*p++ != ';')
;
start=p;
/* find end column 4 */
while(*p++ != ';')
;
nfc2_len=decode_to_utf8(nfc2, UNISTR_SIZE, start, p-1);
if(nfc2_len > max_c4_len)
max_c4_len=nfc2_len;
nfc_rc=raptor_nfc_check(nfc1, nfc1_len, &error);
if(!nfc_rc) {
fprintf(stderr, "%s:%d: NFC check 1 failed on: '", filename, line);
utf8_print(nfc1, nfc1_len, stderr);
fprintf(stderr, "' at byte %d of %d\n", error, (int)nfc1_len);
fails++;
} else
passes++;
if(nfc1_len == nfc2_len && !memcmp(nfc1, nfc2, nfc1_len))
continue;
nfc_rc=raptor_nfc_check(nfc2, nfc2_len, &error);
if(!nfc_rc) {
fprintf(stderr, "%s:%d: NFC check 2 failed on: '", filename, line);
utf8_print(nfc2, nfc2_len, stderr);
fprintf(stderr, "' at byte %d of %d\n", error, (int)nfc2_len);
fails++;
} else
passes++;
}
fclose(fh);
fprintf(stderr, "%s: max c2 len: %d, max c4 len: %d\n", program,
(int)max_c2_len, (int)max_c4_len);
fprintf(stderr, "%s: passes: %d fails: %d\n", program,
passes, fails);
return rc;
}
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