diff --git a/ncurses/tinfo/trim_sgr0.c b/ncurses/tinfo/trim_sgr0.c
new file mode 100644
index 0000000..80c8f77
--- /dev/null
+++ b/ncurses/tinfo/trim_sgr0.c
@@ -0,0 +1,326 @@
+/****************************************************************************
+ * Copyright (c) 2005-2006,2007 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            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Thomas Dickey                                                   *
+ ****************************************************************************/
+
+#include <curses.priv.h>
+
+#include <ctype.h>
+
+#include <tic.h>
+#include <term_entry.h>
+
+MODULE_ID("$Id: trim_sgr0.c,v 1.8 2007/04/07 17:14:11 tom Exp $")
+
+#undef CUR
+#define CUR tp->
+
+#define CSI       233
+#define ESC       033		/* ^[ */
+#define L_BRACK   '['
+
+static char *
+set_attribute_9(TERMTYPE *tp, int flag)
+{
+    const char *result;
+
+    if ((result = tparm(set_attributes, 0, 0, 0, 0, 0, 0, 0, 0, flag)) == 0)
+	result = "";
+    return strdup(result);
+}
+
+static int
+is_csi(const char *s)
+{
+    if (UChar(s[0]) == CSI)
+	return 1;
+    else if (s[0] == ESC && s[1] == L_BRACK)
+	return 2;
+    return 0;
+}
+
+static char *
+skip_zero(char *s)
+{
+    if (s[0] == '0') {
+	if (s[1] == ';')
+	    s += 2;
+	else if (isalpha(UChar(s[1])))
+	    s += 1;
+    }
+    return s;
+}
+
+static const char *
+skip_delay(const char *s)
+{
+    if (s[0] == '$' && s[1] == '<') {
+	s += 2;
+	while (isdigit(UChar(*s)) || *s == '/')
+	    ++s;
+	if (*s == '>')
+	    ++s;
+    }
+    return s;
+}
+
+/*
+ * Improve similar_sgr a little by moving the attr-string from the beginning
+ * to the end of the s-string.
+ */
+static bool
+rewrite_sgr(char *s, char *attr)
+{
+    if (PRESENT(s)) {
+	if (PRESENT(attr)) {
+	    unsigned len_s = strlen(s);
+	    unsigned len_a = strlen(attr);
+
+	    if (len_s > len_a && !strncmp(attr, s, len_a)) {
+		unsigned n;
+		TR(TRACE_DATABASE, ("rewrite:\n\t%s", s));
+		for (n = 0; n < len_s - len_a; ++n) {
+		    s[n] = s[n + len_a];
+		}
+		strcpy(s + n, attr);
+		TR(TRACE_DATABASE, ("to:\n\t%s", s));
+	    }
+	}
+	return TRUE;
+    }
+    return FALSE;		/* oops */
+}
+
+static bool
+similar_sgr(char *a, char *b)
+{
+    bool result = FALSE;
+    int csi_a = is_csi(a);
+    int csi_b = is_csi(b);
+    unsigned len_a;
+    unsigned len_b;
+
+    TR(TRACE_DATABASE, ("similar_sgr:\n\t%s\n\t%s",
+			_nc_visbuf2(1, a),
+			_nc_visbuf2(2, 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);
+	}
+    }
+    len_a = strlen(a);
+    len_b = strlen(b);
+    if (len_a && len_b) {
+	if (len_a > len_b)
+	    result = (strncmp(a, b, len_b) == 0);
+	else
+	    result = (strncmp(a, b, len_a) == 0);
+    }
+    TR(TRACE_DATABASE, ("...similar_sgr: %d\n\t%s\n\t%s", result,
+			_nc_visbuf2(1, a),
+			_nc_visbuf2(2, b)));
+    return result;
+}
+
+static unsigned
+chop_out(char *string, unsigned i, unsigned j)
+{
+    TR(TRACE_DATABASE, ("chop_out %d..%d from %s", i, j, _nc_visbuf(string)));
+    while (string[j] != '\0') {
+	string[i++] = string[j++];
+    }
+    string[i] = '\0';
+    return i;
+}
+
+/*
+ * Compare, ignoring delays.  Some of the delay values are inconsistent, and
+ * we do not want to be stopped by that.
+ *
+ * Returns the number of chars from 'full' that we matched.  If any mismatch
+ * occurs, return zero.
+ */
+static int
+compare_part(const char *part, const char *full)
+{
+    const char *next_part;
+    const char *next_full;
+    int used_full = 0;
+    int used_delay = 0;
+
+    while (*part != 0) {
+	if (*part != *full) {
+	    used_full = 0;
+	    break;
+	}
+
+	/*
+	 * Adjust the return-value to allow the rare case of
+	 *      string<delay>string
+	 * to remove the whole piece.  The most common case is a delay at the
+	 * end of the string.  The adjusted string will retain the delay, which
+	 * is conservative.
+	 */
+	if (used_delay != 0) {
+	    used_full += used_delay;
+	    used_delay = 0;
+	}
+	if (*part == '$' && *full == '$') {
+	    next_part = skip_delay(part);
+	    next_full = skip_delay(full);
+	    if (next_part != part && next_full != full) {
+		used_delay += (next_full - full);
+		full = next_full;
+		part = next_part;
+		continue;
+	    }
+	}
+	++used_full;
+	++part;
+	++full;
+    }
+    return used_full;
+}
+
+/*
+ * 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.
+ *
+ * This function returns the modified sgr0 if it can be modified, a null if
+ * an error occurs, or the original sgr0 if no change is needed.
+ */
+NCURSES_EXPORT(char *)
+_nc_trim_sgr0(TERMTYPE *tp)
+{
+    char *result = exit_attribute_mode;
+
+    T((T_CALLED("_nc_trim_sgr0()")));
+
+    if (PRESENT(exit_attribute_mode)
+	&& PRESENT(set_attributes)) {
+	bool found = FALSE;
+	char *on = set_attribute_9(tp, 1);
+	char *off = set_attribute_9(tp, 0);
+	char *end = strdup(exit_attribute_mode);
+	char *tmp;
+	size_t i, j, k;
+
+	TR(TRACE_DATABASE, ("checking if we can trim sgr0 based on sgr"));
+	TR(TRACE_DATABASE, ("sgr0       %s", _nc_visbuf(end)));
+	TR(TRACE_DATABASE, ("sgr(9:off) %s", _nc_visbuf(off)));
+	TR(TRACE_DATABASE, ("sgr(9:on)  %s", _nc_visbuf(on)));
+
+	if (!rewrite_sgr(on, enter_alt_charset_mode)
+	    || !rewrite_sgr(off, exit_alt_charset_mode)
+	    || !rewrite_sgr(end, exit_alt_charset_mode)) {
+	    FreeIfNeeded(off);
+	} else if (similar_sgr(off, end)
+		   && !similar_sgr(off, on)) {
+	    TR(TRACE_DATABASE, ("adjusting sgr(9:off) : %s", _nc_visbuf(off)));
+	    result = off;
+	    /*
+	     * If rmacs is a substring of sgr(0), remove that chunk.
+	     */
+	    if (exit_alt_charset_mode != 0) {
+		TR(TRACE_DATABASE, ("scan for rmacs %s", _nc_visbuf(exit_alt_charset_mode)));
+		j = strlen(off);
+		k = strlen(exit_alt_charset_mode);
+		if (j > k) {
+		    for (i = 0; i <= (j - k); ++i) {
+			int k2 = compare_part(exit_alt_charset_mode, off + i);
+			if (k2 != 0) {
+			    found = TRUE;
+			    chop_out(off, i, i + k2);
+			    break;
+			}
+		    }
+		}
+	    }
+	    /*
+	     * SGR 10 would reset to normal font.
+	     */
+	    if (!found) {
+		if ((i = is_csi(off)) != 0
+		    && off[strlen(off) - 1] == 'm') {
+		    TR(TRACE_DATABASE, ("looking for SGR 10 in %s",
+					_nc_visbuf(off)));
+		    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;
+			i = chop_out(off, i, j);
+			found = TRUE;
+		    }
+		}
+	    }
+	    if (!found
+		&& (tmp = strstr(end, off)) != 0
+		&& strcmp(end, off) != 0) {
+		i = tmp - end;
+		j = strlen(off);
+		tmp = strdup(end);
+		chop_out(tmp, i, j);
+		free(off);
+		result = tmp;
+	    }
+	    TR(TRACE_DATABASE, ("...adjusted sgr0 : %s", _nc_visbuf(result)));
+	    if (!strcmp(result, exit_attribute_mode)) {
+		TR(TRACE_DATABASE, ("...same result, discard"));
+		free(result);
+		result = exit_attribute_mode;
+	    }
+	} else {
+	    /*
+	     * Either the sgr does not reference alternate character set,
+	     * or it is incorrect.  That's too hard to decide right now.
+	     */
+	    free(off);
+	}
+	FreeIfNeeded(end);
+	FreeIfNeeded(on);
+    } else {
+	/*
+	 * Possibly some applications are confused if sgr0 contains rmacs,
+	 * but that would be a different bug report -TD
+	 */
+    }
+
+    returnPtr(result);
+}