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+/****************************************************************************
+ * Copyright (c) 2015-2017,2019 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/*
+ * Author: Thomas E. Dickey
+ *
+ * $Id: test_sgr.c,v 1.14 2019/08/17 21:36:44 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("%4u ", 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;
+ char *my_name = strdup(name);
+
+ if (db_list) {
+ putenv(next_dbitem());
+ }
+
+ if (!q_opt)
+ printf("Terminal type \"%s\"\n", my_name);
+
+ if (no_init) {
+ START_TRACE();
+ } else {
+ setupterm((NCURSES_CONST char *) my_name, 1, (int *) 0);
+ }
+
+ if (!q_opt) {
+ if (strcmp(my_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]);
+ }
+ }
+ free(my_name);
+ 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 */