/****************************************************************************
- * Copyright (c) 2005-2006,2007 Free Software Foundation, Inc. *
+ * Copyright 2019,2020 Thomas E. Dickey *
+ * Copyright 2005-2016,2017 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 *
/*
* Author: Thomas E. Dickey
*
- * $Id: demo_termcap.c,v 1.6 2007/02/03 18:51:23 tom Exp $
+ * $Id: demo_termcap.c,v 1.59 2020/02/02 23:34:34 tom Exp $
*
* A simple demo of the termcap interface.
*/
#define USE_TINFO
#include <test.priv.h>
+#include <sys/stat.h>
+
+#if NCURSES_XNAMES
+#if HAVE_TERM_ENTRY_H
+#include <term_entry.h>
+#else
+#undef NCURSES_XNAMES
+#define NCURSES_XNAMES 0
+#endif
+#endif
+
+#if defined(NCURSES_VERSION)
+#if HAVE_NCURSES_TERMCAP_H
+#include <ncurses/termcap.h>
+#elif HAVE_TERMCAP_H
+#include <termcap.h>
+#endif
+#endif
+
+static void failed(const char *) GCC_NORETURN;
+
+static void
+failed(const char *msg)
+{
+ fprintf(stderr, "%s\n", msg);
+ ExitProgram(EXIT_FAILURE);
+}
#if HAVE_TGETENT
-#define isCapName(c) (isgraph(c) && strchr("^#=:\\", c) == 0)
+#if defined(HAVE_CURSES_DATA_BOOLNAMES) || defined(DECL_CURSES_DATA_BOOLNAMES)
+#define USE_CODE_LISTS 1
+#else
+#define USE_CODE_LISTS 0
+#endif
+
+#define FCOLS 8
+#define FNAME(type) "%s %-*s = ", #type, FCOLS
+
+static bool b_opt = FALSE;
+static bool n_opt = FALSE;
+static bool s_opt = FALSE;
+static bool q_opt = FALSE;
+#ifdef NCURSES_VERSION
+static bool x_opt = FALSE;
+static bool y_opt = FALSE;
+#endif
+
+static char *d_opt;
+static char *e_opt;
+static char **db_list;
+static int db_item;
+
+static char *my_blob;
+static char **my_boolcodes;
+static char **my_numcodes;
+static char **my_numvalues;
+static char **my_strcodes;
+static char **my_strvalues;
+
+static long total_values;
+static long total_b_values;
+static long total_n_values;
+static long total_s_values;
+
+#define isCapName(c) (isgraph(c) && strchr("^=:\\", c) == 0)
+#define EachCapName(n) n = 33; n < 127; ++n
+
+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
-dumpit(char *cap)
+make_dblist(void)
{
- /*
- * One of the limitations of the termcap interface is that the library
- * cannot determine the size of the buffer passed via tgetstr(), nor the
- * amount of space remaining. This demo simply reuses the whole buffer
- * for each call; a normal termcap application would try to use the buffer
- * to hold all of the strings extracted from the terminal entry.
- */
- char area[1024], *ap = area;
- char *str;
- int num;
+ if (d_opt && e_opt) {
+ int pass;
- if ((str = tgetstr(cap, &ap)) != 0) {
- /*
- * Note that the strings returned are mostly terminfo format, since
- * ncurses does not convert except for a handful of special cases.
- */
- printf("str %s = ", cap);
- while (*str != 0) {
- int ch = UChar(*str++);
+ 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++;
+ }
+ }
+ if (result != 0)
+ 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 /* NO_LEAKS */
+
+static void
+show_string(const char *name, const char *value)
+{
+ printf(FNAME(str), name);
+ if (value == ((char *) -1)) {
+ printf("CANCELLED");
+ } else if (value == ((char *) 0)) {
+ printf("ABSENT");
+ } else {
+ while (*value != 0) {
+ int ch = UChar(*value++);
switch (ch) {
case '\177':
fputs("^?", stdout);
break;
}
}
- printf("\n");
+ }
+ printf("\n");
+}
+
+static void
+show_number(const char *name, int value)
+{
+ printf(FNAME(num), name);
+ printf(" %d\n", value);
+}
+
+static void
+dumpit(NCURSES_CONST char *cap)
+{
+ /*
+ * One of the limitations of the termcap interface is that the library
+ * cannot determine the size of the buffer passed via tgetstr(), nor the
+ * amount of space remaining. This demo simply reuses the whole buffer
+ * for each call; a normal termcap application would try to use the buffer
+ * to hold all of the strings extracted from the terminal entry.
+ */
+ char area[1024], *ap = area;
+ char *str;
+ int num;
+
+ if ((str = tgetstr(cap, &ap)) != 0) {
+ total_values++;
+ total_s_values++;
+ if (!q_opt) {
+ /*
+ * Note that the strings returned are mostly terminfo format, since
+ * ncurses does not convert except for a handful of special cases.
+ */
+ show_string(cap, str);
+ }
} else if ((num = tgetnum(cap)) >= 0) {
- printf("num %s = %d\n", cap, num);
- } else if ((num = tgetflag(cap)) > 0) {
- printf("flg %s\n", cap);
+ total_values++;
+ total_n_values++;
+ if (!q_opt) {
+ show_number(cap, num);
+ }
+ } else if (tgetflag(cap) > 0) {
+ total_values++;
+ total_b_values++;
+ if (!q_opt) {
+ printf(FNAME(flg), cap);
+ printf("%s\n", "true");
+ }
}
- fflush(stdout);
+
+ if (!q_opt)
+ fflush(stdout);
}
static void
-demo_termcap(const char *name)
+brute_force(const char *name)
{
char buffer[1024];
- printf("Terminal type %s\n", name);
+ if (db_list) {
+ putenv(next_dbitem());
+ }
+ if (!q_opt)
+ printf("Terminal type \"%s\"\n", name);
if (tgetent(buffer, name) >= 0) {
char cap[3];
int c1, c2;
cap[2] = 0;
- for (c1 = 0; c1 < 256; ++c1) {
- cap[0] = c1;
+ for (EachCapName(c1)) {
+ cap[0] = (char) c1;
if (isCapName(c1)) {
- for (c2 = 0; c2 < 256; ++c2) {
- cap[1] = c2;
+ for (EachCapName(c2)) {
+ cap[1] = (char) c2;
if (isCapName(c2)) {
dumpit(cap);
}
}
}
+#if NCURSES_XNAMES
+static void
+dump_xname(NCURSES_CONST char *cap)
+{
+ if (strlen(cap) == 2)
+ dumpit(cap);
+}
+#endif
+
+static void
+demo_termcap(NCURSES_CONST char *name)
+{
+ char buffer[1024];
+
+ if (db_list) {
+ putenv(next_dbitem());
+ }
+ if (!q_opt)
+ printf("Terminal type \"%s\"\n", name);
+ if (tgetent(buffer, name) >= 0) {
+ NCURSES_CONST char *cap;
+ unsigned n;
+
+ if (b_opt) {
+ for (n = 0;; ++n) {
+ cap = my_boolcodes[n];
+ if (cap == 0)
+ break;
+ dumpit(cap);
+ }
+ }
+
+ if (n_opt) {
+ for (n = 0;; ++n) {
+ cap = my_numcodes[n];
+ if (cap == 0)
+ break;
+ dumpit(cap);
+ }
+ }
+
+ if (s_opt) {
+ for (n = 0;; ++n) {
+ cap = my_strcodes[n];
+ if (cap == 0)
+ break;
+ dumpit(cap);
+ }
+ }
+#ifdef NCURSES_VERSION
+ if (x_opt && (my_blob == 0) && y_opt) {
+#if NCURSES_XNAMES
+ TERMTYPE *term = (TERMTYPE *) cur_term;
+ if (term != 0
+ && ((NUM_BOOLEANS(term) != BOOLCOUNT)
+ || (NUM_NUMBERS(term) != NUMCOUNT)
+ || (NUM_STRINGS(term) != STRCOUNT))) {
+ for (n = BOOLCOUNT; n < NUM_BOOLEANS(term); ++n) {
+ dump_xname(ExtBoolname(term, (int) n, boolnames));
+ }
+ for (n = NUMCOUNT; n < NUM_NUMBERS(term); ++n) {
+ dump_xname(ExtNumname(term, (int) n, numnames));
+ }
+ for (n = STRCOUNT; n < NUM_STRINGS(term); ++n) {
+ dump_xname(ExtStrname(term, (int) n, strnames));
+ }
+ }
+#endif
+ }
+#endif
+ }
+}
+
+typedef enum {
+ pDefault = 0
+ ,pComment
+ ,pDescription
+ ,pEscaped
+ ,pNewline
+ ,pName
+ ,pNumber
+ ,pString
+} STATE;
+
+static void
+parse_description(const char *input_name)
+{
+ static char empty[1];
+
+ FILE *fp;
+ struct stat sb;
+ size_t count_bools = 0;
+ size_t count_nums = 0;
+ size_t count_strs = 0;
+ size_t len;
+ size_t j, k;
+ STATE state;
+
+ if (stat(input_name, &sb) != 0
+ || (sb.st_mode & S_IFMT) != S_IFREG) {
+ failed("input is not a file");
+ }
+
+ if (sb.st_size == 0) {
+ failed("input is empty");
+ }
+
+ /*
+ * None of the arrays could be larger than the input-file, and since it
+ * is small, just allocate the maximum for simplicity.
+ */
+ if ((my_blob = malloc((size_t) sb.st_size + 1)) == 0 ||
+ (my_boolcodes = typeCalloc(char *, sb.st_size)) == 0 ||
+ (my_numcodes = typeCalloc(char *, sb.st_size)) == 0 ||
+ (my_numvalues = typeCalloc(char *, sb.st_size)) == 0 ||
+ (my_strcodes = typeCalloc(char *, sb.st_size)) == 0 ||
+ (my_strvalues = typeCalloc(char *, sb.st_size)) == 0) {
+ failed("cannot allocate memory for input-file");
+ }
+
+ if ((fp = fopen(input_name, "r")) == 0)
+ failed("cannot open input-file");
+ len = fread(my_blob, sizeof(char), (size_t) sb.st_size, fp);
+ my_blob[sb.st_size] = '\0';
+ fclose(fp);
+
+ /*
+ * First, get rid of comments and escaped newlines, as well as repeated
+ * colons to construct a canonical entry.
+ *
+ * FIXME: actually this should make an additional pass just to strip
+ * comment-lines and escaped newlines. But it is workable for infocmp
+ * output.
+ */
+ state = pNewline;
+ for (j = k = 0; j < len; ++j) {
+ int ch = my_blob[j];
+ if (ch == '\t') {
+ ch = ' ';
+ }
+ switch (state) {
+ case pNewline:
+ if (ch == ' ') {
+ continue;
+ }
+ if (ch == '#') {
+ state = pComment;
+ continue;
+ }
+ state = pDefault;
+ /* FALLTHRU */
+ case pDefault:
+ switch (ch) {
+ case '|':
+ state = pDescription;
+ continue;
+ case '\\':
+ state = pEscaped;
+ continue;
+ case '\n':
+ state = pNewline;
+ continue;
+ case ' ':
+ case ':':
+ break;
+ default:
+ state = pName;
+ break;
+ }
+ my_blob[k++] = (char) ch;
+ break;
+ case pComment:
+ if (ch == '\n')
+ state = pNewline;
+ break;
+ case pDescription:
+ switch (ch) {
+ case ':':
+ state = pDefault;
+ break;
+ case '\n':
+ state = pNewline;
+ break;
+ }
+ break;
+ case pEscaped:
+ if (ch != '\n') {
+ my_blob[k++] = (char) ch;
+ state = pDefault;
+ } else {
+ state = pNewline;
+ }
+ break;
+ case pName:
+ switch (ch) {
+ case '\n':
+ state = pNewline;
+ continue;
+ case ' ':
+ case ':':
+ state = pDefault;
+ break;
+ case '#':
+ state = pNumber;
+ break;
+ case '|':
+ state = pDescription;
+ continue;
+ }
+ my_blob[k++] = (char) ch;
+ break;
+ case pNumber:
+ switch (ch) {
+ case '\n':
+ state = pNewline;
+ continue;
+ case ':':
+ state = pDefault;
+ break;
+ case ' ':
+ state = pDefault;
+ continue;
+ }
+ my_blob[k++] = (char) ch;
+ break;
+ case pString:
+ switch (ch) {
+ case '\\':
+ if (my_blob[j + 1] == '\0') {
+ state = pDefault;
+ continue;
+ }
+ break;
+ case '\n':
+ state = pNewline;
+ continue;
+ case ':':
+ state = pDefault;
+ break;
+ }
+ my_blob[k++] = (char) ch;
+ break;
+ default:
+ /* not used */
+ break;
+ }
+ }
+ my_blob[k] = '\0';
+
+ /*
+ * Then, parse what's left, making indexes of the names and values.
+ */
+ state = pDefault;
+ for (j = 0; my_blob[j] != '\0'; ++j) {
+ switch (state) {
+ case pDefault:
+ switch (my_blob[j]) {
+ case '\\':
+ state = pEscaped;
+ break;
+ case ':':
+ my_blob[j] = '\0';
+ if (my_blob[j + 1] != '\0' && my_blob[j + 1] != ':')
+ state = pName;
+ break;
+ case ' ':
+ break;
+ default:
+ break;
+ }
+ case pEscaped:
+ break;
+ case pName:
+ state = pDefault;
+ /*
+ * Commented-out capabilities might be accessible (they are in
+ * ncurses).
+ */
+ if (my_blob[j] == '.' && my_blob[j + 1] == '.') {
+ j += 2;
+ }
+ if (my_blob[j + 1] != '\0') {
+ switch (my_blob[j + 2]) {
+ case '#':
+ my_numvalues[count_nums] = &my_blob[j + 3];
+ my_numcodes[count_nums++] = &my_blob[j];
+ my_blob[j + 2] = '\0';
+ state = pNumber;
+ j += 2;
+ break;
+ case '=':
+ my_strvalues[count_strs] = &my_blob[j + 3];
+ my_strcodes[count_strs++] = &my_blob[j];
+ my_blob[j + 2] = '\0';
+ state = pString;
+ j += 2;
+ break;
+ default:
+ if (my_blob[j + 2] == '@') {
+ /*
+ * We cannot get the type for a cancelled item
+ * directly, but can infer it assuming the input
+ * came from infocmp, which puts the data in a
+ * known order.
+ */
+ if (count_strs) {
+ my_strvalues[count_strs] = empty;
+ my_strcodes[count_strs++] = &my_blob[j];
+ } else if (count_nums) {
+ my_numvalues[count_nums] = empty;
+ my_numcodes[count_nums++] = &my_blob[j];
+ } else {
+ my_boolcodes[count_bools++] = &my_blob[j];
+ }
+ } else {
+ my_boolcodes[count_bools++] = &my_blob[j];
+ }
+ j++;
+ break;
+ }
+ }
+ break;
+ case pNumber:
+ if (!isdigit(UChar(my_blob[j]))) {
+ --j;
+ state = pDefault;
+ }
+ break;
+ case pString:
+ switch (my_blob[j]) {
+ case '\\':
+ if (my_blob[j + 1] == '\0') {
+ state = pDefault;
+ continue;
+ } else {
+ ++j;
+ }
+ break;
+ case '\n':
+ state = pNewline;
+ continue;
+ case ':':
+ --j;
+ state = pDefault;
+ break;
+ }
+ break;
+ case pNewline:
+ case pComment:
+ case pDescription:
+ default:
+ break;
+ }
+ }
+ my_boolcodes[count_bools] = 0;
+ my_numcodes[count_nums] = 0;
+ my_numvalues[count_nums] = 0;
+ my_strcodes[count_strs] = 0;
+ my_strvalues[count_strs] = 0;
+
+#if 0
+ printf("bools:%d\n", (int) count_bools);
+ for (j = 0; my_boolcodes[j]; ++j)
+ printf("%5d:%s\n", (int) j, my_boolcodes[j]);
+
+ printf("numbers:%d\n", (int) count_nums);
+ for (j = 0; my_numcodes[j]; ++j)
+ printf("%5d:%s(%s)\n", (int) j, my_numcodes[j], my_numvalues[j]);
+
+ printf("strings:%d\n", (int) count_strs);
+ for (j = 0; my_strcodes[j]; ++j)
+ printf("%5d:%s(%s)\n", (int) j, my_strcodes[j], my_strvalues[j]);
+#endif
+}
+
+#if USE_CODE_LISTS
+static char **
+copy_code_list(NCURSES_CONST char *const *list)
+{
+ int pass;
+ size_t count;
+ size_t length = 1;
+ char **result = 0;
+ char *unused = 0;
+
+ for (pass = 0; pass < 2; ++pass) {
+ for (count = 0; list[count] != 0; ++count) {
+ size_t chunk = strlen(list[count]) + 1;
+ if (pass == 0) {
+ length += chunk;
+ } else {
+ result[count] = unused;
+ _nc_STRCPY(unused, list[count], length);
+ unused += chunk;
+ }
+ }
+ if (pass == 0) {
+ char *blob = malloc(length);
+ result = typeCalloc(char *, count + 1);
+ unused = blob;
+ if (blob == 0 || result == 0)
+ failed("copy_code_list failed");
+ }
+ }
+
+ return result;
+}
+
+#if NO_LEAKS
+static void
+free_code_list(char **list)
+{
+ if (list) {
+ free(list[0]);
+ free(list);
+ }
+}
+#endif /* NO_LEAKS */
+#endif /* USE_CODE_LISTS */
+
+static void
+usage(void)
+{
+ static const char *msg[] =
+ {
+ "Usage: demo_termcap [options] [terminal]",
+ "",
+ "If no options are given, print all (boolean, numeric, string)",
+ "capabilities for the given terminal, using short names.",
+ "",
+ "Options:",
+ " -a try all names, print capabilities found",
+ " -b print boolean-capabilities",
+ " -d LIST colon-separated list of databases to use",
+ " -e NAME environment variable to set with -d option",
+ " -i NAME terminal description to use as names for \"-a\" option, etc.",
+ " -n print numeric-capabilities",
+ " -q quiet (prints only counts)",
+ " -r COUNT repeat for given count",
+ " -s print string-capabilities",
+ " -v print termcap-variables",
+#ifdef NCURSES_VERSION
+ " -x print extended capabilities",
+#endif
+ };
+ 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;
+ bool a_opt = FALSE;
+#if defined(NCURSES_VERSION) || defined(HAVE_CURSES_DATA_OSPEED)
+ bool v_opt = FALSE;
+#endif
+ char *input_name = 0;
+
+ int repeat;
+ int r_opt = 1;
- if (argc > 1) {
- for (n = 1; n < argc; ++n) {
- demo_termcap(argv[n]);
+ while ((n = getopt(argc, argv, "abd:e:i:nqr:svxy")) != -1) {
+ switch (n) {
+ case 'a':
+ a_opt = TRUE;
+ break;
+ case 'b':
+ b_opt = TRUE;
+ break;
+ case 'd':
+ d_opt = optarg;
+ break;
+ case 'e':
+ e_opt = optarg;
+ break;
+ case 'i':
+ input_name = optarg;
+ break;
+ case 'n':
+ n_opt = TRUE;
+ break;
+ case 'q':
+ q_opt = TRUE;
+ break;
+ case 'r':
+ if ((r_opt = atoi(optarg)) <= 0)
+ usage();
+ break;
+ case 's':
+ s_opt = TRUE;
+ break;
+#if defined(NCURSES_VERSION) || defined(HAVE_CURSES_DATA_OSPEED)
+ case 'v':
+ v_opt = TRUE;
+ break;
+#endif
+#ifdef NCURSES_VERSION
+#if NCURSES_XNAMES
+ case 'x':
+ x_opt = TRUE;
+ break;
+ case 'y':
+ y_opt = TRUE;
+ x_opt = TRUE;
+ break;
+#endif
+#endif
+ default:
+ usage();
+ break;
+ }
+ }
+
+#if HAVE_USE_EXTENDED_NAMES
+ use_extended_names(x_opt);
+#endif
+
+ if (!(b_opt || n_opt || s_opt)) {
+ b_opt = TRUE;
+ n_opt = TRUE;
+ s_opt = TRUE;
+ }
+
+ make_dblist();
+
+ if (a_opt) {
+ for (repeat = 0; repeat < r_opt; ++repeat) {
+ 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);
+ }
}
- } else if ((name = getenv("TERM")) != 0) {
- demo_termcap(name);
} else {
- demo_termcap("dumb");
+ if (input_name != 0) {
+ parse_description(input_name);
+ }
+#if USE_CODE_LISTS
+ else {
+ my_boolcodes = copy_code_list(boolcodes);
+ my_numcodes = copy_code_list(numcodes);
+ my_strcodes = copy_code_list(strcodes);
+ }
+#else
+ else {
+ failed("no capability-lists available (use -i option)");
+ }
+#endif /* USE_CODE_LISTS */
+ for (repeat = 0; repeat < r_opt; ++repeat) {
+ if (optind < argc) {
+ for (n = optind; n < argc; ++n) {
+ demo_termcap(argv[n]);
+ }
+ } else if ((name = getenv("TERM")) != 0) {
+ demo_termcap(name);
+ } else {
+ static char dumb[] = "dumb";
+ demo_termcap(dumb);
+ }
+ }
}
+ printf("%ld values (%ld booleans, %ld numbers, %ld strings)\n",
+ total_values, total_b_values, total_n_values, total_s_values);
+
+#if defined(NCURSES_VERSION) || defined(HAVE_CURSES_DATA_OSPEED)
+ if (v_opt) {
+ show_number("PC", PC);
+ show_string("UP", UP);
+ show_string("BC", BC);
+ show_number("ospeed", (int) ospeed);
+ }
+#endif
+
+#if NO_LEAKS
+ free_dblist();
+#if USE_CODE_LISTS
+ free_code_list(my_boolcodes);
+ free_code_list(my_numcodes);
+ free_code_list(my_strcodes);
+#endif
+#endif /* NO_LEAKS */
+
ExitProgram(EXIT_SUCCESS);
}
+
#else
int
main(int argc GCC_UNUSED,
char *argv[]GCC_UNUSED)
{
- printf("This program requires termcap\n");
- exit(EXIT_FAILURE);
+ failed("This program requires termcap");
}
#endif
projects / ncurses.git / blobdiff