From 3a67c11b629ca6668eaa00df83f736e58ee7b4a4 Mon Sep 17 00:00:00 2001
From: Karsten Hopp <karsten@redhat.com>
Date: Oct 15 2013 12:13:58 +0000
Subject: - patchlevel 045


---

diff --git a/7.4.045 b/7.4.045
new file mode 100644
index 0000000..0e82735
--- /dev/null
+++ b/7.4.045
@@ -0,0 +1,111 @@
+To: vim_dev@googlegroups.com
+Subject: Patch 7.4.045
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.4.045
+Problem:    substitute() does not work properly when the pattern starts with
+	    "\ze".
+Solution:   Detect an empty match. (Christian Brabandt)
+Files:	    src/eval.c, src/testdir/test80.in, src/testdir/test80.ok
+
+
+*** ../vim-7.4.044/src/eval.c	2013-09-25 21:00:24.000000000 +0200
+--- src/eval.c	2013-09-29 21:03:22.000000000 +0200
+***************
+*** 24301,24306 ****
+--- 24301,24307 ----
+      garray_T	ga;
+      char_u	*ret;
+      char_u	*save_cpo;
++     int		zero_width;
+  
+      /* Make 'cpoptions' empty, so that the 'l' flag doesn't work here */
+      save_cpo = p_cpo;
+***************
+*** 24339,24358 ****
+  	    (void)vim_regsub(&regmatch, sub, (char_u *)ga.ga_data
+  					  + ga.ga_len + i, TRUE, TRUE, FALSE);
+  	    ga.ga_len += i + sublen - 1;
+! 	    /* avoid getting stuck on a match with an empty string */
+! 	    if (tail == regmatch.endp[0])
+  	    {
+! 		if (*tail == NUL)
+! 		    break;
+  		*((char_u *)ga.ga_data + ga.ga_len) = *tail++;
+  		++ga.ga_len;
+  	    }
+- 	    else
+- 	    {
+- 		tail = regmatch.endp[0];
+- 		if (*tail == NUL)
+- 		    break;
+- 	    }
+  	    if (!do_all)
+  		break;
+  	}
+--- 24340,24356 ----
+  	    (void)vim_regsub(&regmatch, sub, (char_u *)ga.ga_data
+  					  + ga.ga_len + i, TRUE, TRUE, FALSE);
+  	    ga.ga_len += i + sublen - 1;
+! 	    zero_width = (tail == regmatch.endp[0]
+! 				    || regmatch.startp[0] == regmatch.endp[0]);
+! 	    tail = regmatch.endp[0];
+! 	    if (*tail == NUL)
+! 		break;
+! 	    if (zero_width)
+  	    {
+! 		/* avoid getting stuck on a match with an empty string */
+  		*((char_u *)ga.ga_data + ga.ga_len) = *tail++;
+  		++ga.ga_len;
+  	    }
+  	    if (!do_all)
+  		break;
+  	}
+*** ../vim-7.4.044/src/testdir/test80.in	2013-03-19 17:30:51.000000000 +0100
+--- src/testdir/test80.in	2013-09-29 20:59:00.000000000 +0200
+***************
+*** 142,147 ****
+--- 142,149 ----
+  :$put =\"\n\nTEST_7:\"
+  :$put =substitute('A
A', 'A.', '\=submatch(0)', '')
+  :$put =substitute(\"B\nB\", 'B.', '\=submatch(0)', '')
++ :$put =substitute('-bb', '\zeb', 'a', 'g')
++ :$put =substitute('-bb', '\ze', 'c', 'g')
+  /^TEST_8
+  ENDTEST
+  
+*** ../vim-7.4.044/src/testdir/test80.ok	2013-03-19 17:31:45.000000000 +0100
+--- src/testdir/test80.ok	2013-09-29 20:59:35.000000000 +0200
+***************
+*** 103,108 ****
+--- 103,110 ----
+  A
A
+  B
+  B
++ -abab
++ c-cbcbc
+  
+  
+  TEST_8:
+*** ../vim-7.4.044/src/version.c	2013-09-29 19:05:17.000000000 +0200
+--- src/version.c	2013-09-29 21:04:50.000000000 +0200
+***************
+*** 740,741 ****
+--- 740,743 ----
+  {   /* Add new patch number below this line */
++ /**/
++     45,
+  /**/
+
+-- 
+Just think of all the things we haven't thought of yet.
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\  an exciting new programming language -- http://www.Zimbu.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///