ncurses 6.0 - patch 20170729
[ncurses.git] / ncurses / tinfo / lib_tparm.c
index 53205d1711bf06fb86c563edc4433e959ee9e995..4431f3843d0c327fd99f7959c447ff9372c0a691 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2016,2017 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 +42,7 @@
 #include <ctype.h>
 #include <tic.h>
 
-MODULE_ID("$Id: lib_tparm.c,v 1.84 2011/10/22 15:48:47 tom Exp $")
+MODULE_ID("$Id: lib_tparm.c,v 1.103 2017/07/30 00:13:55 tom Exp $")
 
 /*
  *     char *
@@ -53,7 +53,7 @@ MODULE_ID("$Id: lib_tparm.c,v 1.84 2011/10/22 15:48:47 tom Exp $")
  *
  *          Cursor addressing and other strings  requiring  parame-
  *     ters in the terminal are described by a parameterized string
- *     capability, with like escapes %x in  it.   For  example,  to
+ *     capability, with escapes like %x in  it.   For  example,  to
  *     address  the  cursor, the cup capability is given, using two
  *     parameters: the row and column to  address  to.   (Rows  and
  *     columns  are  numbered  from  zero and refer to the physical
@@ -107,6 +107,7 @@ MODULE_ID("$Id: lib_tparm.c,v 1.84 2011/10/22 15:48:47 tom Exp $")
 NCURSES_EXPORT_VAR(int) _nc_tparm_err = 0;
 
 #define TPS(var) _nc_prescreen.tparm_state.var
+#define popcount _nc_popcount  /* workaround for NetBSD 6.0 defect */
 
 #if NO_LEAKS
 NCURSES_EXPORT(void)
@@ -128,9 +129,7 @@ get_space(size_t need)
     need += TPS(out_used);
     if (need > TPS(out_size)) {
        TPS(out_size) = need * 2;
-       TPS(out_buff) = typeRealloc(char, TPS(out_size), TPS(out_buff));
-       if (TPS(out_buff) == 0)
-           _nc_err_abort(MSG_NO_MEMORY);
+       TYPE_REALLOC(char, TPS(out_size), TPS(out_buff));
     }
 }
 
@@ -143,7 +142,9 @@ save_text(const char *fmt, const char *s, int len)
 
     get_space(s_len + 1);
 
-    (void) sprintf(TPS(out_buff) + TPS(out_used), fmt, s);
+    _nc_SPRINTF(TPS(out_buff) + TPS(out_used),
+               _nc_SLIMIT(TPS(out_size) - TPS(out_used))
+               fmt, s);
     TPS(out_used) += strlen(TPS(out_buff) + TPS(out_used));
 }
 
@@ -155,7 +156,9 @@ save_number(const char *fmt, int number, int len)
 
     get_space((size_t) len + 1);
 
-    (void) sprintf(TPS(out_buff) + TPS(out_used), fmt, number);
+    _nc_SPRINTF(TPS(out_buff) + TPS(out_used),
+               _nc_SLIMIT(TPS(out_size) - TPS(out_used))
+               fmt, number);
     TPS(out_used) += strlen(TPS(out_buff) + TPS(out_used));
 }
 
@@ -250,6 +253,9 @@ parse_format(const char *s, char *format, int *len)
            case 'x':           /* FALLTHRU */
            case 'X':           /* FALLTHRU */
            case 's':
+#ifdef EXP_XTERM_1005
+           case 'u':
+#endif
                *format++ = *s;
                done = TRUE;
                break;
@@ -320,6 +326,7 @@ parse_format(const char *s, char *format, int *len)
 
 #define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
 #define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
+#define tc_BUMP()  if (level < 0 && number < 2) number++
 
 /*
  * Analyze the string to see how many parameters we need from the varargs list,
@@ -340,6 +347,7 @@ _nc_tparm_analyze(const char *string, char *p_is_s[NUM_PARM], int *popcount)
     int lastpop = -1;
     int len;
     int number = 0;
+    int level = -1;
     const char *cp = string;
     static char dummy[] = "";
 
@@ -369,22 +377,30 @@ _nc_tparm_analyze(const char *string, char *p_is_s[NUM_PARM], int *popcount)
            case 'x':           /* FALLTHRU */
            case 'X':           /* FALLTHRU */
            case 'c':           /* FALLTHRU */
-               if (lastpop <= 0)
-                   number++;
+#ifdef EXP_XTERM_1005
+           case 'u':
+#endif
+               if (lastpop <= 0) {
+                   tc_BUMP();
+               }
+               level -= 1;
                lastpop = -1;
                break;
 
            case 'l':
            case 's':
-               if (lastpop > 0)
+               if (lastpop > 0) {
+                   level -= 1;
                    p_is_s[lastpop - 1] = dummy;
-               ++number;
+               }
+               tc_BUMP();
                break;
 
            case 'p':
                cp++;
                i = (UChar(*cp) - '0');
                if (i >= 0 && i <= NUM_PARM) {
+                   ++level;
                    lastpop = i;
                    if (lastpop > *popcount)
                        *popcount = lastpop;
@@ -392,20 +408,22 @@ _nc_tparm_analyze(const char *string, char *p_is_s[NUM_PARM], int *popcount)
                break;
 
            case 'P':
-               ++number;
                ++cp;
                break;
 
            case 'g':
+               ++level;
                cp++;
                break;
 
            case S_QUOTE:
+               ++level;
                cp += 2;
                lastpop = -1;
                break;
 
            case L_BRACE:
+               ++level;
                cp++;
                while (isdigit(UChar(*cp))) {
                    cp++;
@@ -425,14 +443,15 @@ _nc_tparm_analyze(const char *string, char *p_is_s[NUM_PARM], int *popcount)
            case '=':
            case '<':
            case '>':
+               tc_BUMP();
+               level -= 1;     /* pop 2, operate, push 1 */
                lastpop = -1;
-               number += 2;
                break;
 
            case '!':
            case '~':
+               tc_BUMP();
                lastpop = -1;
-               ++number;
                break;
 
            case 'i':
@@ -463,6 +482,8 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
     int i;
     const char *cp = string;
     size_t len2;
+    bool termcap_hack;
+    bool incremented_two;
 
     if (cp == NULL)
        return NULL;
@@ -479,6 +500,8 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
     if (TPS(fmt_buff) == 0)
        return NULL;
 
+    incremented_two = FALSE;
+
     if (number > NUM_PARM)
        number = NUM_PARM;
     if (popcount > NUM_PARM)
@@ -511,8 +534,9 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
      * style, which means tparam() will expand termcap strings OK.
      */
     TPS(stack_ptr) = 0;
+    termcap_hack = FALSE;
     if (popcount == 0) {
-       popcount = number;
+       termcap_hack = TRUE;
        for (i = number - 1; i >= 0; i--) {
            if (p_is_s[i])
                spush(p_is_s[i]);
@@ -523,10 +547,15 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
 #ifdef TRACE
     if (USE_TRACEF(TRACE_CALLS)) {
        for (i = 0; i < num_args; i++) {
-           if (p_is_s[i] != 0)
+           if (p_is_s[i] != 0) {
                save_text(", %s", _nc_visbuf(p_is_s[i]), 0);
-           else
+           } else if ((long) param[i] > 32767 || (long) param[i] < 0) {
+               _tracef("BUG: problem with tparm parameter #%d of %d",
+                       i + 1, num_args);
+               break;
+           } else {
                save_number(", %d", (int) param[i], 0);
+           }
        }
        _tracef(T_CALLED("%s(%s%s)"), TPS(tname), _nc_visbuf(cp), TPS(out_buff));
        TPS(out_used) = 0;
@@ -558,8 +587,22 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
                save_char(npop());
                break;
 
+#ifdef EXP_XTERM_1005
+           case 'u':
+               {
+                   unsigned char target[10];
+                   unsigned source = (unsigned) npop();
+                   int rc = _nc_conv_to_utf8(target, source, (unsigned)
+                                             sizeof(target));
+                   int n;
+                   for (n = 0; n < rc; ++n) {
+                       save_char(target[n]);
+                   }
+               }
+               break;
+#endif
            case 'l':
-               save_number("%d", (int) strlen(spop()), 0);
+               npush((int) strlen(spop()));
                break;
 
            case 's':
@@ -570,10 +613,11 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
                cp++;
                i = (UChar(*cp) - '1');
                if (i >= 0 && i < NUM_PARM) {
-                   if (p_is_s[i])
+                   if (p_is_s[i]) {
                        spush(p_is_s[i]);
-                   else
+                   } else {
                        npush((int) param[i]);
+                   }
                }
                break;
 
@@ -642,11 +686,15 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
                break;
 
            case 'A':
-               npush(npop() && npop());
+               y = npop();
+               x = npop();
+               npush(y && x);
                break;
 
            case 'O':
-               npush(npop() || npop());
+               y = npop();
+               x = npop();
+               npush(y || x);
                break;
 
            case '&':
@@ -688,10 +736,26 @@ tparam_internal(int use_TPARM_ARG, const char *string, va_list ap)
                break;
 
            case 'i':
-               if (p_is_s[0] == 0)
-                   param[0]++;
-               if (p_is_s[1] == 0)
-                   param[1]++;
+               /*
+                * Increment the first two parameters -- if they are numbers
+                * rather than strings.  As a side effect, assign into the
+                * stack; if this is termcap, then the stack was populated
+                * using the termcap hack above rather than via the terminfo
+                * 'p' case.
+                */
+               if (!incremented_two) {
+                   incremented_two = TRUE;
+                   if (p_is_s[0] == 0) {
+                       param[0]++;
+                       if (termcap_hack)
+                           TPS(stack)[0].data.num = (int) param[0];
+                   }
+                   if (p_is_s[1] == 0) {
+                       param[1]++;
+                       if (termcap_hack)
+                           TPS(stack)[1].data.num = (int) param[1];
+                   }
+               }
                break;
 
            case '?':