]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - ncurses/tinfo/lib_setup.c
ncurses 5.7 - patch 20100424
[ncurses.git] / ncurses / tinfo / lib_setup.c
index 1cc367cd4c4e62c6b40b503a31282d1cf32d7a16..0b8aeba5a8cfa9ebc35115d1eed33040bf8d6d2e 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2008,2009 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            *
@@ -42,7 +42,6 @@
 
 #include <curses.priv.h>
 #include <tic.h>               /* for MAX_NAME_SIZE */
-#include <term_entry.h>
 
 #if SVR4_TERMIO && !defined(_POSIX_SOURCE)
 #define _POSIX_SOURCE
@@ -52,7 +51,7 @@
 #include <locale.h>
 #endif
 
-MODULE_ID("$Id: lib_setup.c,v 1.119 2009/09/05 20:10:02 tom Exp $")
+MODULE_ID("$Id: lib_setup.c,v 1.128 2010/04/03 13:54:45 tom Exp $")
 
 /****************************************************************************
  *
@@ -224,7 +223,7 @@ _nc_handle_sigwinch(SCREEN *sp)
 NCURSES_EXPORT(void)
 NCURSES_SP_NAME(use_env) (NCURSES_SP_DCLx bool f)
 {
-    T((T_CALLED("use_env(%p,%d)"), SP_PARM, (int) f));
+    T((T_CALLED("use_env(%p,%d)"), (void *) SP_PARM, (int) f));
 #if NCURSES_SP_FUNCS
     if (IsPreScreen(SP_PARM)) {
        SP_PARM->_use_env = f;
@@ -268,6 +267,7 @@ _nc_get_screensize(SCREEN *sp,
        sp->_TABSIZE = my_tabsize;
     }
 #else
+    (void) sp;
     TABSIZE = my_tabsize;
 #endif
     T(("TABSIZE = %d", my_tabsize));
@@ -278,25 +278,14 @@ _nc_get_screensize(SCREEN *sp,
     /* figure out the size of the screen */
     T(("screen size: terminfo lines = %d columns = %d", lines, columns));
 
-    if (!_nc_prescreen.use_env) {
-       *linep = (int) lines;
-       *colp = (int) columns;
-    } else {                   /* usually want to query LINES and COLUMNS from environment */
-       int value;
-
-       *linep = *colp = 0;
+    *linep = (int) lines;
+    *colp = (int) columns;
 
-       /* first, look for environment variables */
-       if ((value = _nc_getenv_num("LINES")) > 0) {
-           *linep = value;
-       }
-       if ((value = _nc_getenv_num("COLUMNS")) > 0) {
-           *colp = value;
-       }
-       T(("screen size: environment LINES = %d COLUMNS = %d", *linep, *colp));
+    if (_nc_prescreen.use_env) {
+       int value;
 
 #ifdef __EMX__
-       if (*linep <= 0 || *colp <= 0) {
+       {
            int screendata[2];
            _scrsize(screendata);
            *colp = screendata[0];
@@ -306,33 +295,41 @@ _nc_get_screensize(SCREEN *sp,
        }
 #endif
 #if HAVE_SIZECHANGE
-       /* if that didn't work, maybe we can try asking the OS */
-       if (*linep <= 0 || *colp <= 0) {
-           if (isatty(cur_term->Filedes)) {
-               STRUCT_WINSIZE size;
-
-               errno = 0;
-               do {
-                   if (ioctl(cur_term->Filedes, IOCTL_WINSIZE, &size) < 0
-                       && errno != EINTR)
-                       goto failure;
-               } while
-                   (errno == EINTR);
-
-               /*
-                * Solaris lets users override either dimension with an
-                * environment variable.
-                */
-               if (*linep <= 0)
-                   *linep = (sp != 0 && sp->_filtered) ? 1 : WINSIZE_ROWS(size);
-               if (*colp <= 0)
+       /* try asking the OS */
+       if (isatty(cur_term->Filedes)) {
+           STRUCT_WINSIZE size;
+
+           errno = 0;
+           do {
+               if (ioctl(cur_term->Filedes, IOCTL_WINSIZE, &size) >= 0) {
+                   *linep = ((sp != 0 && sp->_filtered)
+                             ? 1
+                             : WINSIZE_ROWS(size));
                    *colp = WINSIZE_COLS(size);
-           }
-           /* FALLTHRU */
-         failure:;
+                   T(("SYS screen size: environment LINES = %d COLUMNS = %d",
+                      *linep, *colp));
+                   break;
+               }
+           } while
+               (errno == EINTR);
        }
 #endif /* HAVE_SIZECHANGE */
 
+       /*
+        * Finally, look for environment variables.
+        *
+        * Solaris lets users override either dimension with an environment
+        * variable.
+        */
+       if ((value = _nc_getenv_num("LINES")) > 0) {
+           *linep = value;
+           T(("screen size: environment LINES = %d", *linep));
+       }
+       if ((value = _nc_getenv_num("COLUMNS")) > 0) {
+           *colp = value;
+           T(("screen size: environment COLUMNS = %d", *colp));
+       }
+
        /* if we can't get dynamic info about the size, use static */
        if (*linep <= 0) {
            *linep = (int) lines;
@@ -465,35 +462,34 @@ grab_entry(const char *const tn, TERMTYPE *const tp)
     return (status);
 }
 #endif
+#endif /* !USE_TERM_DRIVER */
 
 /*
-**     do_prototype()
-**
 **     Take the real command character out of the CC environment variable
 **     and substitute it in for the prototype given in 'command_character'.
 */
-static void
-do_prototype(TERMINAL * termp)
+void
+_nc_tinfo_cmdch(TERMINAL * termp, char proto)
 {
     unsigned i;
     char CC;
-    char proto;
     char *tmp;
 
-    if ((tmp = getenv("CC")) != 0) {
-       if ((CC = *tmp) != 0) {
-           proto = *command_character;
-
-           for_each_string(i, &(termp->type)) {
-               for (tmp = termp->type.Strings[i]; *tmp; tmp++) {
-                   if (*tmp == proto)
-                       *tmp = CC;
-               }
+    /*
+     * Only use the character if the string is a single character,
+     * since it is fairly common for developers to set the C compiler
+     * name as an environment variable - using the same symbol.
+     */
+    if ((tmp = getenv("CC")) != 0 && strlen(tmp) == 1) {
+       CC = *tmp;
+       for_each_string(i, &(termp->type)) {
+           for (tmp = termp->type.Strings[i]; *tmp; tmp++) {
+               if (*tmp == proto)
+                   *tmp = CC;
            }
        }
     }
 }
-#endif /* !USE_TERM_DRIVER */
 
 /*
  * Find the locale which is in effect.
@@ -602,7 +598,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
        termp = *tp;
 #else
     termp = cur_term;
-    T((T_CALLED("setupterm(%s,%d,%p)"), _nc_visbuf(tname), Filedes, errret));
+    T((T_CALLED("setupterm(%s,%d,%p)"), _nc_visbuf(tname), Filedes, (void *) errret));
 #endif
 
     if (tname == 0) {
@@ -663,7 +659,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
        }
 #ifdef USE_TERM_DRIVER
        TCB = (TERMINAL_CONTROL_BLOCK *) termp;
-       code = _nc_get_driver(TCB, tname, errret);
+       code = _nc_globals.term_driver(TCB, tname, errret);
        if (code == OK) {
            termp->Filedes = Filedes;
            termp->_termname = strdup(tname);
@@ -706,8 +702,8 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
 
        set_curterm(termp);
 
-       if (command_character && getenv("CC"))
-           do_prototype(termp);
+       if (command_character)
+           _nc_tinfo_cmdch(termp, *command_character);
 
        /*
         * If an application calls setupterm() rather than initscr() or
@@ -750,6 +746,44 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
     returnCode(code);
 }
 
+#if NCURSES_SP_FUNCS
+/*
+ * In case of handling multiple screens, we need to have a screen before
+ * initialization in setupscreen takes place.  This is to extend the substitute
+ * for some of the stuff in _nc_prescreen, especially for slk and ripoff
+ * handling which should be done per screen.
+ */
+NCURSES_EXPORT(SCREEN *)
+new_prescr(void)
+{
+    static SCREEN *sp;
+
+    START_TRACE();
+    T((T_CALLED("new_prescr()")));
+
+    if (sp == 0) {
+       sp = _nc_alloc_screen_sp();
+       if (sp != 0) {
+           sp->rsp = sp->rippedoff;
+           sp->_filtered = _nc_prescreen.filter_mode;
+           sp->_use_env = _nc_prescreen.use_env;
+#if NCURSES_NO_PADDING
+           sp->_no_padding = _nc_prescreen._no_padding;
+#endif
+           sp->slk_format = 0;
+           sp->_slk = 0;
+           sp->_prescreen = TRUE;
+           SP_PRE_INIT(sp);
+#if USE_REENTRANT
+           sp->_TABSIZE = _nc_prescreen._TABSIZE;
+           sp->_ESCDELAY = _nc_prescreen._ESCDELAY;
+#endif
+       }
+    }
+    returnSP(sp);
+}
+#endif
+
 #ifdef USE_TERM_DRIVER
 /*
  * This entrypoint is called from tgetent() to allow a special case of reusing