diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index 60cd29c..d724d52 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -1764,7 +1764,6 @@
 	    endp = skip_anyof(p);
 	    if (*endp == ']')
 	    {
-		int plen;
 		/*
 		 * Try to reverse engineer character classes. For example,
 		 * recognize that [0-9] stands for \d and [A-Za-z_] for \h,
@@ -2036,34 +2035,11 @@
 			    if (got_coll_char == TRUE && startc == 0)
 				EMIT(0x0a);
 			    else
-			    {
 				EMIT(startc);
-				if (!(enc_utf8 && (utf_ptr2len(regparse) != (plen = utfc_ptr2len(regparse)))))
-				{
-				    EMIT(NFA_CONCAT);
-				}
-			    }
-			}
-		    }
-
-		    if (enc_utf8 && (utf_ptr2len(regparse) != (plen = utfc_ptr2len(regparse))))
-		    {
-			int i = utf_ptr2len(regparse);
-
-			c = utf_ptr2char(regparse + i);
-
-			// Add composing characters
-			for (;;)
-			{
-			    EMIT(c);
 			    EMIT(NFA_CONCAT);
-			    if ((i += utf_char2len(c)) >= plen)
-				break;
-			    c = utf_ptr2char(regparse + i);
 			}
-			EMIT(NFA_COMPOSING);
-			EMIT(NFA_CONCAT);
 		    }
+
 		    MB_PTR_ADV(regparse);
 		} // while (p < endp)
 
@@ -6442,84 +6418,6 @@
 		result_if_matched = (t->state->c == NFA_START_COLL);
 		for (;;)
 		{
-		    if (state->c == NFA_COMPOSING)
-		    {
-			int	    mc = curc;
-			int	    len = 0;
-			nfa_state_T *end;
-			nfa_state_T *sta;
-			int	    cchars[MAX_MCO];
-			int	    ccount = 0;
-			int	    j;
-
-			sta = t->state->out->out;
-			len = 0;
-			if (utf_iscomposing(sta->c))
-			{
-			    // Only match composing character(s), ignore base
-			    // character.  Used for ".{composing}" and "{composing}"
-			    // (no preceding character).
-			    len += mb_char2len(mc);
-			}
-			if (rex.reg_icombine && len == 0)
-			{
-			    // If \Z was present, then ignore composing characters.
-			    // When ignoring the base character this always matches.
-			    if (sta->c != curc)
-				result = FAIL;
-			    else
-				result = OK;
-			    while (sta->c != NFA_END_COMPOSING)
-				sta = sta->out;
-			}
-			// Check base character matches first, unless ignored.
-			else if (len > 0 || mc == sta->c)
-//			if (len > 0 || mc == sta->c)
-			{
-			    if (len == 0)
-			    {
-				len += mb_char2len(mc);
-				sta = sta->out;
-			    }
-
-			    // We don't care about the order of composing characters.
-			    // Get them into cchars[] first.
-			    while (len < clen)
-			    {
-				mc = mb_ptr2char(rex.input + len);
-				cchars[ccount++] = mc;
-				len += mb_char2len(mc);
-				if (ccount == MAX_MCO)
-				    break;
-			    }
-
-			    // Check that each composing char in the pattern matches a
-			    // composing char in the text.  We do not check if all
-			    // composing chars are matched.
-			    result = OK;
-			    while (sta->c != NFA_END_COMPOSING)
-			    {
-				for (j = 0; j < ccount; ++j)
-				    if (cchars[j] == sta->c)
-					break;
-				if (j == ccount)
-				{
-				    result = FAIL;
-				    break;
-				}
-				sta = sta->out;
-			    }
-			}
-			else
-			    result = FAIL;
-
-			if (t->state->out->out1->c == NFA_END_COMPOSING)
-			{
-			    end = t->state->out->out1;
-			    ADD_STATE_IF_MATCH(end);
-			}
-			break;
-		    }
 		    if (state->c == NFA_END_COLL)
 		    {
 			result = !result_if_matched;