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/*------------------------------------------------------------------
* test_towupper.c
*
* Test the musl-inherited towupper regarding Unicode 12.0
* Unicode has no explicit lower->upper mapping document.
*
*------------------------------------------------------------------
*/
#include "test_private.h"
#include "safe_str_lib.h"
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <sys/stat.h>
#ifdef HAVE_TOWUPPER
#include <wctype.h>
#endif
#ifndef HAVE_TOWUPPER_OK
EXTERN uint32_t _towupper(uint32_t wc);
#endif
EXTERN uint32_t _towcase(uint32_t wc, int lower);
int check_casefolding(uint32_t lwr, uint32_t upr);
int check(uint32_t wc, const char *status, const char *name);
int test_towupper(void);
#define GENCAT "/usr/share/unicode/extracted/DerivedGeneralCategory.txt"
#define CFOLD "/usr/share/unicode/CaseFolding.txt"
#ifndef PERL
/* Must have the same Unicode version 9.0, at least 5.26.
Better 5.27.3 with Unicode 10. */
/*# define PERL "perl" */
/*# define PERL "cperl5.27.2"*/
#define PERL "perl5.27.3"
#endif
#define TESTPL "test-upr.pl"
char s[128];
char code[16];
char status[3];
char mapping[24];
char name[80];
FILE *f, *cf, *pl;
static int init = 0;
/* TODO: try to malloc the whole table with 2 status bits.
This linear-searches in the file buffer for extremely low-memory systems.
*/
int check_casefolding(uint32_t lwr, uint32_t upr) {
rewind(cf);
while (!feof(cf)) {
int l;
char *p = fgets(s, sizeof(s), cf);
char *p1;
uint32_t wc, mp;
int c;
if (p && *p && s[0] != '#' && s[0] != '\n') {
p = strstr(s, "; ");
l = p - s;
memcpy(code, s, l);
code[l] = 0;
*status = p[2];
status[1] = 0;
p1 = strstr(&p[5], "; ");
l = p1 - p - 5;
memcpy(mapping, &p[5], l); /* the other cases */
mapping[l] = 0;
strcpy(name, &p1[4]);
name[strlen(name) - 1] = 0;
c = sscanf(code, "%X", &wc);
if (!c)
continue;
if (wc != upr)
continue;
c = sscanf(mapping, "%X", &mp);
if (!c)
continue;
if (lwr != mp) {
if (*status != 'F') {
/* false positives */
debug_printf(
"%u U+%04X: U+%04X != U+%04X status=%s, name=%s\n",
__LINE__, wc, lwr, mp, status, name);
/* cross-check with perl */
if (!init) {
fprintf(pl, "use v5.26;\n");
init = 1;
}
fprintf(pl,
"$l=\"\\x{%X}\";$u=uc $l;$got=\"\\x{%X}\";"
"printf \"uc %X = %%X; got: %X\\n\","
"unpack(\"W*\",$u) if $u ne $got;\n",
lwr, lwr, upr, upr);
return 1;
/*} else {
printf("%u U+%04X: U+%04X != U+%04X status=F,
name=%s\n",
__LINE__, wc, lwr, mp, name);*/
}
}
return 0;
}
}
/*debug_printf("%u U+%04X Ll: not found in %s for U+%04X\n",
__LINE__, upr, CFOLD, lwr);*/
return 0;
}
/* checks a lower case letter from DerivedGeneralCategory */
int check(uint32_t wc, const char *_status, const char *_name) {
int errs = 0;
uint32_t upr;
upr = wc < 128 ? (uint32_t)toupper(wc) : _towcase(wc, 0);
if (upr == wc) {
check_casefolding(wc, upr);
#ifdef HAVE_TOWUPPER_OK
upr = (uint32_t)towupper(wc);
if (upr != wc) {
printf("%u Error towupper(U+%04X) = U+%04X status=%s, name=%s\n",
__LINE__, wc, upr, _status, _name);
errs++;
/* else system libc agrees with us.
which says nothing. system wctype functions are generally
extremely unreliable.
*/
}
#elif defined HAVE_TOWUPPER
upr = _towupper(wc);
if (upr != wc) {
printf("%u _towupper(U+%04X) = U+%04X status=%s, name=%s\n",
__LINE__, wc, upr, _status, _name);
}
#endif
}
return errs;
}
int test_towupper(void) {
int errs = 0;
int lowfound = 0;
uint32_t wc;
struct stat st;
/*--------------------------------------------------*/
pl = fopen(TESTPL, "w");
f = fopen(GENCAT, "r");
if (!f) {
printf("not downloading %s ...", GENCAT);
return 1;
}
cf = fopen(CFOLD, "r");
if (!cf) {
printf("not downloading %s ...", CFOLD);
return 1;
}
while (!feof(f)) {
int l;
char *p = fgets(s, sizeof(s), f);
char *p1;
/* # General_Category=Lowercase_Letter */
if (!(p && *p))
continue;
if (!lowfound) {
if (!strcmp(p, "# General_Category=Lowercase_Letter\n")) {
lowfound = 1;
}
continue;
}
if (!memcmp(p, "# General_Category=", 19)) {
lowfound = 0;
continue;
}
if (s[0] != '#' && s[0] != '\n') {
uint32_t from, to;
int c;
p = strstr(s, "; ");
if (!p)
continue;
l = p - s;
memcpy(code, s, l);
code[l] = 0; /* uppercase only */
status[0] = p[2];
status[1] = p[3];
status[2] = 0;
p1 = strstr(&p[5], "# ");
l = p1 - p - 5;
strncpy(name, &p1[3], 79);
name[strlen(name) - 1] = 0;
strremovews_s(name, 80);
c = sscanf(code, "%X..%X", &from, &to);
if (c) {
for (wc = from; wc <= to; wc++) {
check(wc, status, name);
}
} else {
c = sscanf(code, "%X", &wc); /* upr */
}
if (c) {
errs += check(wc, status, name);
} else {
printf("!code=%s status=%s name=%s\n", code, status, name);
}
}
}
fclose(f);
fclose(cf);
#ifdef BSD_ALL_LIKE
fstat(pl->_file, &st);
fclose(pl);
#elif defined __GLIBC__
fstat(pl->_fileno, &st);
fclose(pl);
#else
fclose(pl);
stat(TESTPL, &st);
#endif
if (st.st_size) {
printf("Cross check with " PERL ":\n");
fflush(stdout);
if (system(PERL " " TESTPL)) {
printf("Redo with perl (probably wrong Unicode version):\n");
fflush(stdout);
if (!system("perl " TESTPL))
printf("perl " TESTPL " failed\n");
}
}
#ifndef DEBUG
unlink(TESTPL);
#endif
return (errs);
}
#ifndef __KERNEL__
/* simple hack to get this to work for both userspace and Linux kernel,
until a better solution can be created. */
int main(void) { return (test_towupper()); }
#endif
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