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/*
* Author: Thomas E. Dickey
*
* $Id: test_sgr.c,v 1.11 2017/06/24 18:35:25 tom Exp $
*
* A simple demo of the sgr/sgr0 terminal capabilities.
*/
#define USE_TINFO
#include <test.priv.h>
#if !HAVE_TIGETSTR
static void failed(const char *) GCC_NORETURN;
static void
failed(const char *msg)
{
fprintf(stderr, "%s\n", msg);
ExitProgram(EXIT_FAILURE);
}
#endif
#if HAVE_TIGETSTR
static bool no_init = FALSE;
static bool q_opt = FALSE;
static char *d_opt;
static char *e_opt;
static char **db_list;
static int db_item;
static long total_values;
static char *
make_dbitem(char *p, char *q)
{
size_t need = strlen(e_opt) + 2 + (size_t) (p - q);
char *result = malloc(need);
_nc_SPRINTF(result, _nc_SLIMIT(need) "%s=%.*s", e_opt, (int) (p - q), q);
return result;
}
static void
make_dblist(void)
{
if (d_opt && e_opt) {
int pass;
for (pass = 0; pass < 2; ++pass) {
char *p, *q;
size_t count = 0;
for (p = q = d_opt; *p != '\0'; ++p) {
if (*p == ':') {
if (p != q + 1) {
if (pass) {
db_list[count] = make_dbitem(p, q);
}
count++;
}
q = p + 1;
}
}
if (p != q + 1) {
if (pass) {
db_list[count] = make_dbitem(p, q);
}
count++;
}
if (!pass) {
db_list = typeCalloc(char *, count + 1);
}
}
}
}
static char *
next_dbitem(void)
{
char *result = 0;
if (db_list) {
if ((result = db_list[db_item]) == 0) {
db_item = 0;
result = db_list[0];
} else {
db_item++;
}
}
printf("** %s\n", result);
return result;
}
#if NO_LEAKS
static void
free_dblist(void)
{
if (db_list) {
int n;
for (n = 0; db_list[n]; ++n)
free(db_list[n]);
free(db_list);
db_list = 0;
}
}
#endif
#define MAXPAR 9
#define MAXSGR (1 << MAXPAR)
#define BITS2P(n) (count & (1 << (n - 1)))
#define MASK_SMSO (1 << 0)
#define MASK_BOLD (1 << 5)
#define MASK_REV (1 << 2)
static void
dumpit(unsigned bits, unsigned ignore, const char *sgr, const char *sgr0)
{
static const char sample[] = "abcdefghijklm";
static char params[] = "SURBDBIPA";
unsigned n;
printf("%4d ", bits);
bits &= ~ignore;
for (n = 0; n < MAXPAR; ++n) {
putchar((int) ((bits & (unsigned) (1 << n)) ? params[n] : '-'));
}
putchar(' ');
putp(sgr);
putp(sample);
putp(sgr0);
putchar('\n');
}
static bool
one_bit(unsigned a, unsigned b)
{
unsigned c = (a ^ b);
bool result = FALSE;
if (c) {
while (!(c & 1)) {
c >>= 1;
}
result = (c == 1);
}
return result;
}
static void
brute_force(const char *name)
{
unsigned count;
char *my_sgr;
char *my_sgr0;
char *my_bold;
char *my_revs;
char *my_smso;
if (db_list) {
putenv(next_dbitem());
}
if (!q_opt)
printf("Terminal type \"%s\"\n", name);
if (no_init) {
START_TRACE();
} else {
setupterm((NCURSES_CONST char *) name, 1, (int *) 0);
}
if (!q_opt) {
if (strcmp(name, ttytype))
printf("... actual \"%s\"\n", ttytype);
}
my_sgr = tigetstr("sgr");
my_sgr0 = tigetstr("sgr0");
my_bold = tigetstr("bold");
my_revs = tigetstr("rev");
my_smso = tigetstr("smso");
if (!VALID_STRING(my_sgr)) {
fprintf(stderr, "no \"sgr\" capability found\n");
} else if (!VALID_STRING(my_sgr0)) {
fprintf(stderr, "no \"sgr0\" capability found\n");
} else {
char *values[MAXSGR + MAXPAR];
unsigned j;
unsigned ignore = 0;
unsigned reason = 0;
unsigned repeat = 0;
for (count = 0; count < MAXSGR; ++count) {
values[count] = tparm(my_sgr,
BITS2P(1),
BITS2P(2),
BITS2P(3),
BITS2P(4),
BITS2P(5),
BITS2P(6),
BITS2P(7),
BITS2P(8),
BITS2P(9));
if (values[count] != 0) {
values[count] = strdup(values[count]);
}
}
for (count = 0; count < MAXSGR; ++count) {
if (values[count] != 0) {
for (j = count + 1; j < MAXSGR; ++j) {
if (values[j] == 0)
continue;
if (strcmp(values[count], values[j]))
continue;
if (one_bit(count, j)) {
free(values[j]);
values[j] = 0;
}
}
}
}
for (j = 0; j < MAXPAR; ++j) {
unsigned mask = (unsigned) (1 << j);
for (count = 0; count < MAXSGR; ++count) {
if ((count & mask) != 0)
continue;
if (values[count] != 0 && values[count + mask] != 0) {
mask = 0;
break;
}
}
ignore |= mask;
}
/* smso is tested first, but often duplicates bold or reverse. */
if (VALID_STRING(my_smso)) {
if (VALID_STRING(my_bold) && !strcmp(my_bold, my_smso)) {
repeat |= MASK_SMSO;
reason = MASK_BOLD;
}
if (VALID_STRING(my_revs) && !strcmp(my_revs, my_smso)) {
repeat |= MASK_SMSO;
reason = MASK_REV;
}
}
for (count = 0; count < MAXSGR; ++count) {
if (values[count] != 0) {
bool found = FALSE;
if ((repeat & MASK_SMSO) != 0
&& (count & MASK_SMSO) != 0) {
found = TRUE;
} else {
for (j = 0; j < count; ++j) {
if (values[j] != 0 && !strcmp(values[j], values[count])) {
if ((repeat & MASK_SMSO) != 0
&& (j & MASK_SMSO) != 0
&& (count & reason) != 0) {
continue;
}
found = TRUE;
break;
}
}
}
if (!found) {
dumpit(count, ignore, values[count], my_sgr0);
++total_values;
}
}
}
for (count = 0; count < MAXSGR; ++count) {
free(values[count]);
}
}
del_curterm(cur_term);
}
static void
usage(void)
{
static const char *msg[] =
{
"Usage: test_sgr [options] [terminal]",
"",
"Print all distinct combinations of sgr capability.",
"",
"Options:",
" -d LIST colon-separated list of databases to use",
" -e NAME environment variable to set with -d option",
" -n do not initialize terminal, to test error-checking",
" -q quiet (prints only counts)",
};
unsigned n;
for (n = 0; n < SIZEOF(msg); ++n) {
fprintf(stderr, "%s\n", msg[n]);
}
ExitProgram(EXIT_FAILURE);
}
int
main(int argc, char *argv[])
{
int n;
char *name;
while ((n = getopt(argc, argv, "d:e:nq")) != -1) {
switch (n) {
case 'd':
d_opt = optarg;
break;
case 'e':
e_opt = optarg;
break;
case 'n':
no_init = TRUE;
break;
case 'q':
q_opt = TRUE;
break;
default:
usage();
break;
}
}
make_dblist();
if (optind < argc) {
for (n = optind; n < argc; ++n) {
brute_force(argv[n]);
}
} else if ((name = getenv("TERM")) != 0) {
brute_force(name);
} else {
static char dumb[] = "dumb";
brute_force(dumb);
}
printf("%ld distinct values\n", total_values);
#if NO_LEAKS
free_dblist();
#endif
ExitProgram(EXIT_SUCCESS);
}
#else /* !HAVE_TIGETSTR */
int
main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
{
failed("This program requires the terminfo functions such as tigetstr");
ExitProgram(EXIT_FAILURE);
}
#endif /* HAVE_TIGETSTR */