ncurses 6.2 - patch 20200725

[ncurses.git] / progs / dump_entry.c

diff --git a/progs/dump_entry.c b/progs/dump_entry.c
index 66b250b9d31dc6c0e1a9be980046b26802725d79..e084e0f0f541a507cba7aa71d75c36e059d18915 100644 (file)
--- a/progs/dump_entry.c
+++ b/progs/dump_entry.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2018,2019 Free Software Foundation, Inc.              *
+ * Copyright 2018-2019,2020 Thomas E. Dickey                                *
+ * Copyright 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            *
@@ -39,7 +40,7 @@
 #include "termsort.c"          /* this C file is generated */
 #include <parametrized.h>      /* so is this */
 
-MODULE_ID("$Id: dump_entry.c,v 1.172 2019/04/20 18:54:48 tom Exp $")
+MODULE_ID("$Id: dump_entry.c,v 1.179 2020/07/08 21:21:11 tom Exp $")
 
 #define DISCARD(string) string = ABSENT_STRING
 #define PRINTF (void) printf
@@ -718,6 +719,33 @@ indent_DYN(DYNBUF * buffer, int level)
        strncpy_DYN(buffer, "\t", (size_t) 1);
 }
 
+/*
+ * Check if the current line which was begun consists only of a tab and the
+ * given leading text.
+ */
+static bool
+leading_DYN(DYNBUF * buffer, const char *leading)
+{
+    bool result = FALSE;
+    size_t need = strlen(leading);
+    if (buffer->used > need) {
+       need = buffer->used - need;
+       if (!strcmp(buffer->text + need, leading)) {
+           result = TRUE;
+           while (--need != 0) {
+               if (buffer->text[need] == '\n') {
+                   break;
+               }
+               if (buffer->text[need] != '\t') {
+                   result = FALSE;
+                   break;
+               }
+           }
+       }
+    }
+    return result;
+}
+
 bool
 has_params(const char *src)
 {
@@ -821,7 +849,7 @@ fmt_complex(TERMTYPE2 *tterm, const char *capability, char *src, int level)
            }
            break;
        case 'p':
-           if (percent && params) {
+           if (percent && params && !leading_DYN(&tmpbuf, "%")) {
                tmpbuf.text[tmpbuf.used - 1] = '\n';
                indent_DYN(&tmpbuf, level + 1);
                strncpy_DYN(&tmpbuf, "%", (size_t) 1);
@@ -1097,7 +1125,7 @@ fmt_entry(TERMTYPE2 *tterm,
                        char *s = srccap, *d = buffer;
                        int need = 3 + (int) strlen(name);
                        while ((*d = *s++) != 0) {
-                           if ((d - buffer + 1) >= (int) sizeof(buffer)) {
+                           if ((d - buffer + 2) >= (int) sizeof(buffer)) {
                                fprintf(stderr,
                                        "%s: value for %s is too long\n",
                                        _nc_progname,
@@ -1109,7 +1137,8 @@ fmt_entry(TERMTYPE2 *tterm,
                                *d++ = '\\';
                                *d = ':';
                            } else if (*d == '\\') {
-                               *++d = *s++;
+                               if ((*++d = *s++) == '\0')
+                                   break;
                            }
                            d++;
                            *d = '\0';
@@ -1369,7 +1398,7 @@ one_one_mapping(const char *mapping)
 
     if (VALID_STRING(mapping)) {
        int n = 0;
-       while (mapping[n] != '\0') {
+       while (mapping[n] != '\0' && mapping[n + 1] != '\0') {
            if (isLine(mapping[n]) &&
                mapping[n] != mapping[n + 1]) {
                result = FALSE;