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authorRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
committerRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
commita388f199193767bacbb38b172ab89cb84369736c (patch)
treea1816f5667d2280b970ca44e407bac8cc4496c0a /ncurses/tinfo/lib_termcap.c
parentaa59d4d4c5dda7e1c6f9dc0cc6edc58992a525c7 (diff)
downloadsrc-a388f199193767bacbb38b172ab89cb84369736c.tar.gz
src-a388f199193767bacbb38b172ab89cb84369736c.zip
- Flatten the vendor area
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=184786
Diffstat (limited to 'ncurses/tinfo/lib_termcap.c')
-rw-r--r--ncurses/tinfo/lib_termcap.c290
1 files changed, 290 insertions, 0 deletions
diff --git a/ncurses/tinfo/lib_termcap.c b/ncurses/tinfo/lib_termcap.c
new file mode 100644
index 000000000000..ff97eea920f8
--- /dev/null
+++ b/ncurses/tinfo/lib_termcap.c
@@ -0,0 +1,290 @@
+/****************************************************************************
+ * Copyright (c) 1998-2006,2007 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
+ * *
+ * some of the code in here was contributed by: *
+ * Magnus Bengtsson, d6mbeng@dtek.chalmers.se (Nov'93) *
+ * (but it has changed a lot) *
+ ****************************************************************************/
+
+#define __INTERNAL_CAPS_VISIBLE
+#include <curses.priv.h>
+
+#include <termcap.h>
+#include <tic.h>
+#include <ctype.h>
+
+#include <term_entry.h>
+
+MODULE_ID("$Id: lib_termcap.c,v 1.61 2007/06/02 19:36:03 tom Exp $")
+
+NCURSES_EXPORT_VAR(char *) UP = 0;
+NCURSES_EXPORT_VAR(char *) BC = 0;
+
+#define MyCache _nc_globals.tgetent_cache
+#define CacheInx _nc_globals.tgetent_index
+#define CacheSeq _nc_globals.tgetent_sequence
+
+#define FIX_SGR0 MyCache[CacheInx].fix_sgr0
+#define LAST_TRM MyCache[CacheInx].last_term
+#define LAST_BUF MyCache[CacheInx].last_bufp
+#define LAST_USE MyCache[CacheInx].last_used
+#define LAST_SEQ MyCache[CacheInx].sequence
+
+/***************************************************************************
+ *
+ * tgetent(bufp, term)
+ *
+ * In termcap, this function reads in the entry for terminal `term' into the
+ * buffer pointed to by bufp. It must be called before any of the functions
+ * below are called.
+ * In this terminfo emulation, tgetent() simply calls setupterm() (which
+ * does a bit more than tgetent() in termcap does), and returns its return
+ * value (1 if successful, 0 if no terminal with the given name could be
+ * found, or -1 if no terminal descriptions have been installed on the
+ * system). The bufp argument is ignored.
+ *
+ ***************************************************************************/
+
+NCURSES_EXPORT(int)
+tgetent(char *bufp, const char *name)
+{
+ int errcode;
+ int n;
+ bool found_cache = FALSE;
+
+ START_TRACE();
+ T((T_CALLED("tgetent()")));
+
+ _nc_setupterm((NCURSES_CONST char *) name, STDOUT_FILENO, &errcode, TRUE);
+
+ /*
+ * In general we cannot tell if the fixed sgr0 is still used by the
+ * caller, but if tgetent() is called with the same buffer, that is
+ * good enough, since the previous data would be invalidated by the
+ * current call.
+ *
+ * bufp may be a null pointer, e.g., GNU termcap. That allocates data,
+ * which is good until the next tgetent() call. The conventional termcap
+ * is inconvenient because of the fixed buffer size, but because it uses
+ * caller-supplied buffers, can have multiple terminal descriptions in
+ * use at a given time.
+ */
+ for (n = 0; n < TGETENT_MAX; ++n) {
+ bool same_result = (MyCache[n].last_used && MyCache[n].last_bufp == bufp);
+ if (same_result) {
+ CacheInx = n;
+ if (FIX_SGR0 != 0) {
+ FreeAndNull(FIX_SGR0);
+ }
+ /*
+ * Also free the terminfo data that we loaded (much bigger leak).
+ */
+ if (LAST_TRM != 0 && LAST_TRM != cur_term) {
+ TERMINAL *trm = LAST_TRM;
+ del_curterm(LAST_TRM);
+ for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx)
+ if (LAST_TRM == trm)
+ LAST_TRM = 0;
+ CacheInx = n;
+ }
+ found_cache = TRUE;
+ break;
+ }
+ }
+ if (!found_cache) {
+ int best = 0;
+
+ for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx) {
+ if (LAST_SEQ < MyCache[best].sequence) {
+ best = CacheInx;
+ }
+ }
+ CacheInx = best;
+ }
+ LAST_TRM = cur_term;
+ LAST_SEQ = ++CacheSeq;
+
+ PC = 0;
+ UP = 0;
+ BC = 0;
+ FIX_SGR0 = 0; /* don't free it - application may still use */
+
+ if (errcode == 1) {
+
+ if (cursor_left)
+ if ((backspaces_with_bs = !strcmp(cursor_left, "\b")) == 0)
+ backspace_if_not_bs = cursor_left;
+
+ /* we're required to export these */
+ if (pad_char != NULL)
+ PC = pad_char[0];
+ if (cursor_up != NULL)
+ UP = cursor_up;
+ if (backspace_if_not_bs != NULL)
+ BC = backspace_if_not_bs;
+
+ if ((FIX_SGR0 = _nc_trim_sgr0(&(cur_term->type))) != 0) {
+ if (!strcmp(FIX_SGR0, exit_attribute_mode)) {
+ if (FIX_SGR0 != exit_attribute_mode) {
+ free(FIX_SGR0);
+ }
+ FIX_SGR0 = 0;
+ }
+ }
+ LAST_BUF = bufp;
+ LAST_USE = TRUE;
+
+ (void) baudrate(); /* sets ospeed as a side-effect */
+
+/* LINT_PREPRO
+#if 0*/
+#include <capdefaults.c>
+/* LINT_PREPRO
+#endif*/
+
+ }
+ returnCode(errcode);
+}
+
+/***************************************************************************
+ *
+ * tgetflag(str)
+ *
+ * Look up boolean termcap capability str and return its value (TRUE=1 if
+ * present, FALSE=0 if not).
+ *
+ ***************************************************************************/
+
+NCURSES_EXPORT(int)
+tgetflag(NCURSES_CONST char *id)
+{
+ unsigned i;
+
+ T((T_CALLED("tgetflag(%s)"), id));
+ if (cur_term != 0) {
+ TERMTYPE *tp = &(cur_term->type);
+ for_each_boolean(i, tp) {
+ const char *capname = ExtBoolname(tp, i, boolcodes);
+ if (!strncmp(id, capname, 2)) {
+ /* setupterm forces invalid booleans to false */
+ returnCode(tp->Booleans[i]);
+ }
+ }
+ }
+ returnCode(0); /* Solaris does this */
+}
+
+/***************************************************************************
+ *
+ * tgetnum(str)
+ *
+ * Look up numeric termcap capability str and return its value, or -1 if
+ * not given.
+ *
+ ***************************************************************************/
+
+NCURSES_EXPORT(int)
+tgetnum(NCURSES_CONST char *id)
+{
+ unsigned i;
+
+ T((T_CALLED("tgetnum(%s)"), id));
+ if (cur_term != 0) {
+ TERMTYPE *tp = &(cur_term->type);
+ for_each_number(i, tp) {
+ const char *capname = ExtNumname(tp, i, numcodes);
+ if (!strncmp(id, capname, 2)) {
+ if (!VALID_NUMERIC(tp->Numbers[i]))
+ returnCode(ABSENT_NUMERIC);
+ returnCode(tp->Numbers[i]);
+ }
+ }
+ }
+ returnCode(ABSENT_NUMERIC);
+}
+
+/***************************************************************************
+ *
+ * tgetstr(str, area)
+ *
+ * Look up string termcap capability str and return a pointer to its value,
+ * or NULL if not given.
+ *
+ ***************************************************************************/
+
+NCURSES_EXPORT(char *)
+tgetstr(NCURSES_CONST char *id, char **area)
+{
+ unsigned i;
+ char *result = NULL;
+
+ T((T_CALLED("tgetstr(%s,%p)"), id, area));
+ if (cur_term != 0) {
+ TERMTYPE *tp = &(cur_term->type);
+ for_each_string(i, tp) {
+ const char *capname = ExtStrname(tp, i, strcodes);
+ if (!strncmp(id, capname, 2)) {
+ result = tp->Strings[i];
+ TR(TRACE_DATABASE, ("found match : %s", _nc_visbuf(result)));
+ /* setupterm forces canceled strings to null */
+ if (VALID_STRING(result)) {
+ if (result == exit_attribute_mode
+ && FIX_SGR0 != 0) {
+ result = FIX_SGR0;
+ TR(TRACE_DATABASE, ("altered to : %s", _nc_visbuf(result)));
+ }
+ if (area != 0
+ && *area != 0) {
+ (void) strcpy(*area, result);
+ result = *area;
+ *area += strlen(*area) + 1;
+ }
+ }
+ break;
+ }
+ }
+ }
+ returnPtr(result);
+}
+
+#if NO_LEAKS
+NCURSES_EXPORT(void)
+_nc_tgetent_leaks(void)
+{
+ for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx) {
+ FreeIfNeeded(FIX_SGR0);
+ if (LAST_TRM != 0)
+ del_curterm(LAST_TRM);
+ }
+}
+#endif