ncurses 6.4 - patch 20240420

[ncurses.git] / ncurses / curses.priv.h

diff --git a/ncurses/curses.priv.h b/ncurses/curses.priv.h
index 0c09d263544fb5d1abede44bc5e29716fcc9662d..74d54d4d2780b4c21bcb19dfa234b93c58882064 100644 (file)
--- a/ncurses/curses.priv.h
+++ b/ncurses/curses.priv.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018-2022,2023 Thomas E. Dickey                                *
+ * Copyright 2018-2023,2024 Thomas E. Dickey                                *
  * Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -35,7 +35,7 @@
  ****************************************************************************/
 
 /*
- * $Id: curses.priv.h,v 1.672 2023/09/09 23:13:32 tom Exp $
+ * $Id: curses.priv.h,v 1.686 2024/04/13 18:59:05 tom Exp $
  *
  *     curses.priv.h
  *
@@ -72,12 +72,6 @@ extern "C" {
 #include <unistd.h>
 #endif
 
-#if HAVE_LIMITS_H
-# include <limits.h>
-#elif HAVE_SYS_PARAM_H
-# include <sys/param.h>
-#endif
-
 #include <assert.h>
 #include <stdio.h>
 
@@ -89,16 +83,6 @@ extern "C" {
 #  endif
 #endif
 
-#ifndef PATH_MAX
-# if defined(_POSIX_PATH_MAX)
-#  define PATH_MAX _POSIX_PATH_MAX
-# elif defined(MAXPATHLEN)
-#  define PATH_MAX MAXPATHLEN
-# else
-#  define PATH_MAX 255 /* the Posix minimum path-size */
-# endif
-#endif
-
 #if DECL_ERRNO
 extern int errno;
 #endif
@@ -312,7 +296,6 @@ extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
 #define NO_TERMINAL "unknown"
 #define USE_SP_RIPOFF     1
 #define USE_SP_TERMTYPE   1
-#define USE_SP_WINDOWLIST 1
 #else
 #define NO_TERMINAL 0
 #endif
@@ -323,6 +306,12 @@ extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
                     : no_terminal), \
         NonEmpty(term_env))
 
+/*
+ * Originally a terminal-driver option, the window-list is per-screen to allow
+ * freeing memory used for windows when a screen is deleted.
+ */
+#define USE_SP_WINDOWLIST 1
+
 /*
  * Note:  ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
  * when we're throwing control codes at the screen at high volume.  To see
@@ -345,6 +334,11 @@ typedef TRIES {
  */
 #define StringOf(ch) {ch, 0}
 
+#define CSI_CHR 0x9b
+#define ESC_CHR 0x1b
+
+#define L_BLOCK '['
+#define R_BLOCK ']'
 #define L_BRACE '{'
 #define R_BRACE '}'
 #define S_QUOTE '\''
@@ -875,6 +869,12 @@ typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
 #endif /* HAVE_LIBDL */
 #endif /* USE_GPM_SUPPORT */
 
+/*
+ * Limit delay-times to 30 seconds, which is consistent with signed 16-bit
+ * numbers in legacy terminfo.
+ */
+#define MAX_DELAY_MSECS 30000
+
 /*
  * When converting from terminfo to termcap, check for cases where we can trim
  * octal escapes down to 2-character form.  It is useful for terminfo format
@@ -905,6 +905,7 @@ typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
  * string is less than 80 columns, but this buffer size is an absolute
  * limit.
  */
+#define TRACECHR_BUF   40
 #define TRACEMSE_MAX   (80 + (5 * 10) + (32 * 15))
 #define TRACEMSE_FMT   "id %2d  at (%2d, %2d, %2d) state %4lx = {" /* } */
 
@@ -940,7 +941,8 @@ extern NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals;
 extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen;
 
 typedef enum {
-    ewInitial = 0,
+    ewUnknown = 0,
+    ewInitial,
     ewRunning,
     ewSuspend
 } ENDWIN;
@@ -1234,7 +1236,7 @@ typedef struct screen {
 #endif
 
 #ifdef TRACE
-       char            tracechr_buf[40];
+       char            tracechr_buf[TRACECHR_BUF];
        char            tracemse_buf[TRACEMSE_MAX];
 #if USE_REENTRANT
        long            _outchars;
@@ -1292,12 +1294,12 @@ extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
 /* Checks for isprint() should be done on 8-bit characters (non-wide) */
 #define is8bits(c)     ((unsigned)(c) <= UCHAR_MAX)
 
-#ifndef min
-#define min(a,b)       ((a) > (b)  ?  (b)  :  (a))
+#ifndef Min
+#define Min(a,b)       ((a) > (b)  ?  (b)  :  (a))
 #endif
 
-#ifndef max
-#define max(a,b)       ((a) < (b)  ?  (b)  :  (a))
+#ifndef Max
+#define Max(a,b)       ((a) < (b)  ?  (b)  :  (a))
 #endif
 
 /* usually in <unistd.h> */
@@ -1361,10 +1363,6 @@ extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
 
 #define TR_PUTC(c)     TR(TRACE_CHARPUT, ("PUTC %#x", UChar(c)))
 
-#ifndef MB_LEN_MAX
-#define MB_LEN_MAX 16  /* should be >= MB_CUR_MAX, but that may be a function */
-#endif
-
 #if USE_WIDEC_SUPPORT /* { */
 /* true if the status/errno indicate an illegal multibyte sequence */
 #define isEILSEQ(status) (((size_t)status == (size_t)-1) && (errno == EILSEQ))
@@ -1377,7 +1375,20 @@ extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
 #define NulColor       /* nothing */
 #endif
 
-#define NulChar                0,0,0,0 /* FIXME: see CCHARW_MAX */
+#if CCHARW_MAX > 6
+#define NulChar                0,0,0,0,0
+#elif CCHARW_MAX > 5
+#define NulChar                0,0,0,0         /* ncurses7 */
+#elif CCHARW_MAX > 4
+#define NulChar                0,0,0           /* ncurses6 */
+#elif CCHARW_MAX > 3
+#define NulChar                0,0
+#elif CCHARW_MAX > 2
+#define NulChar                0
+#else
+#define NulChar                /* nothing */
+#endif
+
 #define CharOf(c)      ((c).chars[0])
 #define AttrOf(c)      ((c).attr)
 
@@ -1388,16 +1399,12 @@ extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
 #define NewChar2(c,a)  { a, { c, NulChar } NulColor }
 #define NewChar(ch)    NewChar2(ChCharOf(ch), ChAttrOf(ch))
 
-#if CCHARW_MAX == 5
+#if CCHARW_MAX > 1
 #define CharEq(a,b)    (((a).attr == (b).attr) \
-                      && (a).chars[0] == (b).chars[0] \
-                      && (a).chars[1] == (b).chars[1] \
-                      && (a).chars[2] == (b).chars[2] \
-                      && (a).chars[3] == (b).chars[3] \
-                      && (a).chars[4] == (b).chars[4] \
+                        && !memcmp((a).chars, \
+                                   (b).chars, \
+                                   CCHARW_MAX * sizeof((b).chars[0])) \
                        if_EXT_COLORS(&& (a).ext_color == (b).ext_color))
-#elif CCHARW_MAX > 0
-#error Inconsistent values for CCHARW_MAX
 #else
 #define CharEq(a,b)    (!memcmp(&(a), &(b), sizeof(a)))
 #endif
@@ -2523,6 +2530,14 @@ extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
 #define NC_ISATTY(fd) isatty(fd)
 #endif
 
+/*
+ * Perhaps not "real" but possibly not "fake".
+ */
+#define IsRealTty(fd,value) \
+       (NC_ISATTY(fd) \
+        && (value = ttyname(fd)) != NULL \
+        && strncmp(value, "/dev/pts/", 9))
+
 #ifdef USE_TERM_DRIVER
 #  define IsTermInfo(sp)       ((TCBOf(sp) != 0) && ((TCBOf(sp)->drv->isTerminfo)))
 #  define HasTInfoTerminal(sp) ((0 != TerminalOf(sp)) && IsTermInfo(sp))