13215: echotc, echoti, terminfo

1 files changed, 134 insertions, 0 deletions

diff --git a/Src/Modules/termcap.c b/Src/Modules/termcap.c
new file mode 100644
index 000000000..8f5f650f9
--- /dev/null
+++ b/Src/Modules/termcap.c
@@ -0,0 +1,134 @@
+/*
+ * termcap.c - termcap manipulation through curses
+ *
+ * This file is part of zsh, the Z shell.
+ *
+ * Copyright (c) 1992-1997 Paul Falstad
+ * All rights reserved.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and to distribute modified versions of this software for any
+ * purpose, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ *
+ * In no event shall Paul Falstad or the Zsh Development Group be liable
+ * to any party for direct, indirect, special, incidental, or consequential
+ * damages arising out of the use of this software and its documentation,
+ * even if Paul Falstad and the Zsh Development Group have been advised of
+ * the possibility of such damage.
+ *
+ * Paul Falstad and the Zsh Development Group specifically disclaim any
+ * warranties, including, but not limited to, the implied warranties of
+ * merchantability and fitness for a particular purpose.  The software
+ * provided hereunder is on an "as is" basis, and Paul Falstad and the
+ * Zsh Development Group have no obligation to provide maintenance,
+ * support, updates, enhancements, or modifications.
+ *
+ */
+
+#include "termcap.mdh"
+#include "termcap.pro"
+
+/* echotc: output a termcap */
+
+/**/
+int
+bin_echotc(char *name, char **argv, char *ops, int func)
+{
+    char *s, buf[2048], *t, *u;
+    int num, argct;
+
+    s = *argv++;
+    if (termflags & TERM_BAD)
+	return 1;
+    if ((termflags & TERM_UNKNOWN) && (isset(INTERACTIVE) || !init_term()))
+	return 1;
+    /* if the specified termcap has a numeric value, display it */
+    if ((num = tgetnum(s)) != -1) {
+	printf("%d\n", num);
+	return 0;
+    }
+    /* if the specified termcap is boolean, and set, say so  *
+     * ncurses can tell if an existing boolean capability is *
+     * off so in this case we print "no".                    */
+#if !defined(NCURSES_VERSION) || !defined(COLOR_PAIR)
+    if (tgetflag(s) > 0) {
+	puts("yes");
+	return (0);
+    }
+#else /* NCURSES_VERSION && COLOR_PAIR */
+    switch (tgetflag(s)) {
+    case -1:
+	break;
+    case 0:
+	puts("no");
+	return 0;
+    default:
+	puts("yes");
+	return 0;
+    }
+#endif /* NCURSES_VERSION && COLOR_PAIR */
+    /* get a string-type capability */
+    u = buf;
+    t = tgetstr(s, &u);
+    if (!t || !*t) {
+	/* capability doesn't exist, or (if boolean) is off */
+	zwarnnam(name, "no such capability: %s", s, 0);
+	return 1;
+    }
+    /* count the number of arguments required */
+    for (argct = 0, u = t; *u; u++)
+	if (*u == '%') {
+	    if (u++, (*u == 'd' || *u == '2' || *u == '3' || *u == '.' ||
+		      *u == '+'))
+		argct++;
+	}
+    /* check that the number of arguments provided is correct */
+    if (arrlen(argv) != argct) {
+	zwarnnam(name, (arrlen(argv) < argct) ? "not enough arguments" :
+		 "too many arguments", NULL, 0);
+	return 1;
+    }
+    /* output string, through the proper termcap functions */
+    if (!argct)
+	tputs(t, 1, putraw);
+    else {
+	num = (argv[1]) ? atoi(argv[1]) : atoi(*argv);
+	tputs(tgoto(t, atoi(*argv), num), num, putraw);
+    }
+    return 0;
+}
+
+static struct builtin bintab[] = {
+    BUILTIN("echotc", 0, bin_echotc, 1, -1, 0, NULL, NULL),
+};
+
+/**/
+int
+setup_(Module m)
+{
+    return 0;
+}
+
+/**/
+int
+boot_(Module m)
+{
+    return !addbuiltins(m->nam, bintab, sizeof(bintab)/sizeof(*bintab));
+}
+
+/**/
+int
+cleanup_(Module m)
+{
+    deletebuiltins(m->nam, bintab, sizeof(bintab)/sizeof(*bintab));
+    return 0;
+}
+
+/**/
+int
+finish_(Module m)
+{
+    return 0;
+}