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30 * Author: Thomas E. Dickey
32 * $Id: demo_termcap.c,v 1.24 2013/06/08 16:58:49 tom Exp $
34 * A simple demo of the termcap interface.
37 #include <test.priv.h>
41 #if defined(HAVE_CURSES_DATA_BOOLNAMES) || defined(DECL_CURSES_DATA_BOOLNAMES)
42 #define USE_CODE_LISTS 1
44 #define USE_CODE_LISTS 0
48 #define FNAME(type) "%s %-*s = ", #type, FCOLS
51 static bool b_opt = FALSE;
52 static bool n_opt = FALSE;
53 static bool q_opt = FALSE;
54 static bool s_opt = FALSE;
59 static char **db_list;
62 static long total_values;
64 #define isCapName(c) (isgraph(c) && strchr("^#=:\\", c) == 0)
67 make_dbitem(char *p, char *q)
69 char *result = malloc(strlen(e_opt) + 2 + (size_t) (p - q));
70 sprintf(result, "%s=%.*s", e_opt, (int) (p - q), q);
80 for (pass = 0; pass < 2; ++pass) {
84 for (p = q = d_opt; *p != '\0'; ++p) {
88 db_list[count] = make_dbitem(p, q);
97 db_list[count] = make_dbitem(p, q);
102 db_list = typeCalloc(char *, count + 1);
114 if ((result = db_list[db_item]) == 0) {
121 printf("** %s\n", result);
130 for (n = 0; db_list[n]; ++n)
138 dumpit(NCURSES_CONST char *cap)
141 * One of the limitations of the termcap interface is that the library
142 * cannot determine the size of the buffer passed via tgetstr(), nor the
143 * amount of space remaining. This demo simply reuses the whole buffer
144 * for each call; a normal termcap application would try to use the buffer
145 * to hold all of the strings extracted from the terminal entry.
147 char area[1024], *ap = area;
151 if ((str = tgetstr(cap, &ap)) != 0) {
155 * Note that the strings returned are mostly terminfo format, since
156 * ncurses does not convert except for a handful of special cases.
158 printf(FNAME(str), cap);
160 int ch = UChar(*str++);
166 fputs("\\E", stdout);
169 fputs("\\b", stdout);
172 fputs("\\f", stdout);
175 fputs("\\n", stdout);
178 fputs("\\r", stdout);
181 fputs("\\s", stdout);
184 fputs("\\t", stdout);
187 fputs("\\^", stdout);
190 fputs("\\072", stdout);
193 fputs("\\\\", stdout);
199 printf("^%c", ch + '@');
201 printf("\\%03o", ch);
207 } else if ((num = tgetnum(cap)) >= 0) {
210 printf(FNAME(num), cap);
211 printf(" %d\n", num);
213 } else if (tgetflag(cap) > 0) {
216 printf(FNAME(flg), cap);
217 printf("%s\n", "true");
226 brute_force(const char *name)
231 putenv(next_dbitem());
233 printf("Terminal type %s\n", name);
234 if (tgetent(buffer, name) >= 0) {
239 for (c1 = 0; c1 < 256; ++c1) {
242 for (c2 = 0; c2 < 256; ++c2) {
255 demo_termcap(NCURSES_CONST char *name)
258 NCURSES_CONST char *cap;
262 putenv(next_dbitem());
264 printf("Terminal type \"%s\"\n", name);
265 if (tgetent(buffer, name) >= 0) {
299 static const char *msg[] =
301 "Usage: demo_termcap [options] [terminal]",
303 "If no options are given, print all (boolean, numeric, string)",
304 "capabilities for the given terminal, using short names.",
307 " -a try all names, print capabilities found",
308 " -b print boolean-capabilities",
309 " -d LIST colon-separated list of databases to use",
310 " -e NAME environment variable to set with -d option",
311 " -n print numeric-capabilities",
312 " -q quiet (prints only counts)",
313 " -r COUNT repeat for given count",
314 " -s print string-capabilities",
315 #ifdef NCURSES_VERSION
316 " -y disable extended capabilities",
320 for (n = 0; n < SIZEOF(msg); ++n) {
321 fprintf(stderr, "%s\n", msg[n]);
323 ExitProgram(EXIT_FAILURE);
328 main(int argc, char *argv[])
338 while ((n = getopt(argc, argv, "abd:e:nqr:sy")) != -1) {
359 if ((r_opt = atoi(optarg)) <= 0)
367 use_extended_names(FALSE);
376 if (!(b_opt || n_opt || s_opt)) {
389 for (n = optind; n < argc; ++n) {
390 brute_force(argv[n]);
392 } else if ((name = getenv("TERM")) != 0) {
395 static char dumb[] = "dumb";
401 for (repeat = 0; repeat < r_opt; ++repeat) {
403 for (n = optind; n < argc; ++n) {
404 demo_termcap(argv[n]);
406 } else if ((name = getenv("TERM")) != 0) {
409 static char dumb[] = "dumb";
414 #endif /* USE_CODE_LISTS */
416 printf("%ld values\n", total_values);
420 ExitProgram(EXIT_SUCCESS);
425 main(int argc GCC_UNUSED,
426 char *argv[]GCC_UNUSED)
428 printf("This program requires termcap\n");
429 ExitProgram(EXIT_FAILURE);