/****************************************************************************
- * Copyright (c) 1998-2002,2003 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2009,2010 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
+ * and: Juergen Pfeifer *
* *
* 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 <tic.h>
#include <ctype.h>
-#include <term_entry.h>
+#ifndef CUR
+#define CUR SP_TERMTYPE
+#endif
-MODULE_ID("$Id: lib_termcap.c,v 1.44 2003/05/24 21:10:28 tom Exp $")
-
-#define CSI 233
-#define ESC 033 /* ^[ */
-#define L_BRACK '['
-#define SHIFT_OUT 017 /* ^N */
+MODULE_ID("$Id: lib_termcap.c,v 1.72 2010/01/23 17:57:43 tom Exp $")
NCURSES_EXPORT_VAR(char *) UP = 0;
NCURSES_EXPORT_VAR(char *) BC = 0;
-static char *fix_me = 0;
-
-static char *
-set_attribute_9(int flag)
-{
- const char *result;
-
- if ((result = tparm(set_attributes, 0, 0, 0, 0, 0, 0, 0, 0, flag)) == 0)
- result = "";
- return strdup(result);
-}
+#define MyCache _nc_globals.tgetent_cache
+#define CacheInx _nc_globals.tgetent_index
+#define CacheSeq _nc_globals.tgetent_sequence
-static int
-is_csi(char *s)
-{
- if (UChar(s[0]) == CSI)
- return 1;
- else if (s[0] == ESC && s[1] == L_BRACK)
- return 2;
- return 0;
-}
-
-static char *
-skip_zero(char *s)
-{
- if (s[0] == '0') {
- if (s[1] == ';')
- s += 2;
- else if (isalpha(UChar(s[1])))
- s += 1;
- }
- return s;
-}
-
-static bool
-similar_sgr(char *a, char *b)
-{
- int csi_a = is_csi(a);
- int csi_b = is_csi(b);
-
- if (csi_a != 0 && csi_b != 0 && csi_a == csi_b) {
- a += csi_a;
- b += csi_b;
- if (*a != *b) {
- a = skip_zero(a);
- b = skip_zero(b);
- }
- }
- return strcmp(a, b) == 0;
-}
+#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
/***************************************************************************
*
***************************************************************************/
NCURSES_EXPORT(int)
-tgetent(char *bufp GCC_UNUSED, const char *name)
+NCURSES_SP_NAME(tgetent) (NCURSES_SP_DCLx char *bufp, const char *name)
{
- int errcode;
-
+ int errcode = ERR;
+ int n;
+ bool found_cache = FALSE;
+#ifdef USE_TERM_DRIVER
+ TERMINAL *termp = 0;
+#endif
+
+ START_TRACE();
T((T_CALLED("tgetent()")));
- setupterm((NCURSES_CONST char *) name, STDOUT_FILENO, &errcode);
+ TINFO_SETUP_TERM(&termp, (NCURSES_CONST char *) name,
+ STDOUT_FILENO, &errcode, TRUE);
+
+#ifdef USE_TERM_DRIVER
+ if (termp == 0 ||
+ !((TERMINAL_CONTROL_BLOCK *) termp)->drv->isTerminfo)
+ return (errcode);
+#endif
+
+ /*
+ * 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 != TerminalOf(SP_PARM)) {
+ TERMINAL *trm = LAST_TRM;
+ NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx 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 = TerminalOf(SP_PARM);
+ LAST_SEQ = ++CacheSeq;
PC = 0;
UP = 0;
BC = 0;
- fix_me = 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)
+ if ((backspaces_with_bs = (char) !strcmp(cursor_left, "\b")) == 0)
backspace_if_not_bs = cursor_left;
/* we're required to export these */
if (backspace_if_not_bs != NULL)
BC = backspace_if_not_bs;
- /*
- * While 'sgr0' is the "same" as termcap 'me', there is a compatibility
- * issue. The sgr/sgr0 capabilities include setting/clearing alternate
- * character set mode. A termcap application cannot use sgr, so sgr0
- * strings that reset alternate character set mode will be
- * misinterpreted. Here, we remove those from the more common
- * ISO/ANSI/VT100 entries, which have sgr0 agreeing with sgr.
- */
- if (exit_attribute_mode != 0
- && set_attributes != 0) {
- char *on = set_attribute_9(1);
- char *off = set_attribute_9(0);
- char *tmp;
- size_t i, j, k;
-
- if (similar_sgr(off, exit_attribute_mode)
- && !similar_sgr(off, on)) {
- TR(TRACE_DATABASE, ("adjusting sgr0 : %s", _nc_visbuf(off)));
- FreeIfNeeded(fix_me);
- fix_me = off;
- for (i = 0; off[i] != '\0'; ++i) {
- if (on[i] != off[i]) {
- j = strlen(off);
- k = strlen(on);
- while (j != 0
- && k != 0
- && off[j - 1] == on[k - 1]) {
- --j, --k;
- }
- while (off[j] != '\0') {
- off[i++] = off[j++];
- }
- off[i] = '\0';
- break;
- }
- }
- /* SGR 10 would reset to normal font */
- if ((i = is_csi(off)) != 0
- && off[strlen(off) - 1] == 'm') {
- tmp = skip_zero(off + i);
- if (tmp[0] == '1'
- && skip_zero(tmp + 1) != tmp + 1) {
- i = tmp - off;
- if (off[i - 1] == ';')
- i--;
- j = skip_zero(tmp + 1) - off;
- while (off[j] != '\0') {
- off[i++] = off[j++];
- }
- off[i] = '\0';
- }
- }
- TR(TRACE_DATABASE, ("...adjusted me : %s", _nc_visbuf(fix_me)));
- if (!strcmp(fix_me, exit_attribute_mode)) {
- TR(TRACE_DATABASE, ("...same result, discard"));
- free(fix_me);
- fix_me = 0;
+ if ((FIX_SGR0 = _nc_trim_sgr0(&(TerminalOf(SP_PARM)->type))) != 0) {
+ if (!strcmp(FIX_SGR0, exit_attribute_mode)) {
+ if (FIX_SGR0 != exit_attribute_mode) {
+ free(FIX_SGR0);
}
+ FIX_SGR0 = 0;
}
- free(on);
}
+ LAST_BUF = bufp;
+ LAST_USE = TRUE;
- (void) baudrate(); /* sets ospeed as a side-effect */
+ SetNoPadding(SP_PARM);
+ (void) NCURSES_SP_NAME(baudrate) (NCURSES_SP_ARG); /* sets ospeed as a side-effect */
/* LINT_PREPRO
#if 0*/
returnCode(errcode);
}
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+tgetent(char *bufp, const char *name)
+{
+ return NCURSES_SP_NAME(tgetent) (CURRENT_SCREEN, bufp, name);
+}
+#endif
+
+#if 0
+static bool
+same_tcname(const char *a, const char *b)
+{
+ fprintf(stderr, "compare(%s,%s)\n", a, b);
+ return !strncmp(a, b, 2);
+}
+#else
+#define same_tcname(a,b) !strncmp(a,b,2)
+#endif
+
/***************************************************************************
*
* tgetflag(str)
***************************************************************************/
NCURSES_EXPORT(int)
-tgetflag(NCURSES_CONST char *id)
+NCURSES_SP_NAME(tgetflag) (NCURSES_SP_DCLx 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]);
+ int result = 0; /* Solaris returns zero for missing flag */
+ int i, j;
+
+ T((T_CALLED("tgetflag(%p, %s)"), (void *) SP_PARM, id));
+ if (HasTInfoTerminal(SP_PARM)) {
+ TERMTYPE *tp = &(TerminalOf(SP_PARM)->type);
+ struct name_table_entry const *entry_ptr;
+
+ entry_ptr = _nc_find_type_entry(id, BOOLEAN, TRUE);
+ if (entry_ptr != 0) {
+ j = entry_ptr->nte_index;
+ }
+#if NCURSES_XNAMES
+ else {
+ j = -1;
+ for_each_ext_boolean(i, tp) {
+ const char *capname = ExtBoolname(tp, i, boolcodes);
+ if (same_tcname(id, capname)) {
+ j = i;
+ break;
+ }
}
}
+#endif
+ if (j >= 0) {
+ /* note: setupterm forces invalid booleans to false */
+ result = tp->Booleans[j];
+ }
}
- returnCode(0); /* Solaris does this */
+ returnCode(result);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+tgetflag(NCURSES_CONST char *id)
+{
+ return NCURSES_SP_NAME(tgetflag) (CURRENT_SCREEN, id);
}
+#endif
/***************************************************************************
*
***************************************************************************/
NCURSES_EXPORT(int)
-tgetnum(NCURSES_CONST char *id)
+NCURSES_SP_NAME(tgetnum) (NCURSES_SP_DCLx 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]);
+ int result = ABSENT_NUMERIC;
+ int i, j;
+
+ T((T_CALLED("tgetnum(%p, %s)"), (void *) SP_PARM, id));
+ if (HasTInfoTerminal(SP_PARM)) {
+ TERMTYPE *tp = &(TerminalOf(SP_PARM)->type);
+ struct name_table_entry const *entry_ptr;
+
+ entry_ptr = _nc_find_type_entry(id, NUMBER, TRUE);
+ if (entry_ptr != 0) {
+ j = entry_ptr->nte_index;
+ }
+#if NCURSES_XNAMES
+ else {
+ j = -1;
+ for_each_ext_number(i, tp) {
+ const char *capname = ExtNumname(tp, i, numcodes);
+ if (same_tcname(id, capname)) {
+ j = i;
+ break;
+ }
}
}
+#endif
+ if (j >= 0) {
+ if (VALID_NUMERIC(tp->Numbers[j]))
+ result = tp->Numbers[j];
+ }
}
- returnCode(ABSENT_NUMERIC);
+ returnCode(result);
}
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+tgetnum(NCURSES_CONST char *id)
+{
+ return NCURSES_SP_NAME(tgetnum) (CURRENT_SCREEN, id);
+}
+#endif
+
/***************************************************************************
*
* tgetstr(str, area)
***************************************************************************/
NCURSES_EXPORT(char *)
-tgetstr(NCURSES_CONST char *id, char **area)
+NCURSES_SP_NAME(tgetstr) (NCURSES_SP_DCLx NCURSES_CONST char *id, char **area)
{
- unsigned i;
char *result = NULL;
+ int i, j;
- 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_me != 0) {
- result = fix_me;
- TR(TRACE_DATABASE, ("altered to : %s", _nc_visbuf(result)));
- }
- if (area != 0
- && *area != 0) {
- (void) strcpy(*area, result);
- *area += strlen(*area) + 1;
- }
+ T((T_CALLED("tgetstr(%s,%p)"), id, (void *) area));
+ if (HasTInfoTerminal(SP_PARM)) {
+ TERMTYPE *tp = &(TerminalOf(SP_PARM)->type);
+ struct name_table_entry const *entry_ptr;
+
+ entry_ptr = _nc_find_type_entry(id, STRING, TRUE);
+ if (entry_ptr != 0) {
+ j = entry_ptr->nte_index;
+ }
+#if NCURSES_XNAMES
+ else {
+ j = -1;
+ for_each_ext_string(i, tp) {
+ const char *capname = ExtStrname(tp, i, strcodes);
+ if (same_tcname(id, capname)) {
+ j = i;
+ break;
+ }
+ }
+ }
+#endif
+ if (j >= 0) {
+ result = tp->Strings[j];
+ 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 NCURSES_SP_FUNCS
+NCURSES_EXPORT(char *)
+tgetstr(NCURSES_CONST char *id, char **area)
+{
+ return NCURSES_SP_NAME(tgetstr) (CURRENT_SCREEN, id, area);
+}
+#endif
+
+#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
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