Patch 7.4.289
Problem: Pattern with repeated backreference does not match with new regexp
engine. (Urtica Dioica)
Solution: Also check the end of a submatch when deciding to put a state in
the state list.
Files: src/testdir/test64.in, src/testdir/test64.ok, src/regexp_nfa.c
*** ../vim-7.4.288/src/testdir/test64.in 2013-11-21 17:12:55.000000000
+0100
--- src/testdir/test64.in 2014-05-13 15:35:02.477659266 +0200
***************
*** 407,412 ****
--- 407,413 ----
:call add(tl, [2, '^.*\.\(.*\)/.\+\(\1\)\@<=$', 'foo.bat/foo.bat',
'foo.bat/foo.bat', 'bat', 'bat'])
:call add(tl, [2, '\\\@<!\${\(\d\+\%(:.\{-}\)\?\\\@<!\)}', '2013-06-27${0}',
'${0}', '0'])
:call add(tl, [2, '^\(a*\)\1$', 'aaaaaaaa', 'aaaaaaaa', 'aaaa'])
+ :call add(tl, [2, '^\(a\{-2,}\)\1\+$', 'aaaaaaaaa', 'aaaaaaaaa', 'aaa'])
:"
:"""" Look-behind with limit
:call add(tl, [2, '<\@<=span.', 'xxspanxx<spanyyy', 'spany'])
*** ../vim-7.4.288/src/testdir/test64.ok 2013-11-21 17:12:55.000000000
+0100
--- src/testdir/test64.ok 2014-05-13 15:49:21.381666784 +0200
***************
*** 947,952 ****
--- 947,955 ----
OK 0 - ^\(a*\)\1$
OK 1 - ^\(a*\)\1$
OK 2 - ^\(a*\)\1$
+ OK 0 - ^\(a\{-2,}\)\1\+$
+ OK 1 - ^\(a\{-2,}\)\1\+$
+ OK 2 - ^\(a\{-2,}\)\1\+$
OK 0 - <\@<=span.
OK 1 - <\@<=span.
OK 2 - <\@<=span.
*** ../vim-7.4.288/src/regexp_nfa.c 2014-04-23 19:06:33.702828771 +0200
--- src/regexp_nfa.c 2014-05-13 15:49:15.065666729 +0200
***************
*** 3945,3950 ****
--- 3945,3951 ----
/*
* Return TRUE if "sub1" and "sub2" have the same start positions.
+ * When using back-references also check the end position.
*/
static int
sub_equal(sub1, sub2)
***************
*** 3976,3981 ****
--- 3977,3999 ----
if (s1 != -1 && sub1->list.multi[i].start.col
!= sub2->list.multi[i].start.col)
return FALSE;
+
+ if (nfa_has_backref)
+ {
+ if (i < sub1->in_use)
+ s1 = sub1->list.multi[i].end.lnum;
+ else
+ s1 = -1;
+ if (i < sub2->in_use)
+ s2 = sub2->list.multi[i].end.lnum;
+ else
+ s2 = -1;
+ if (s1 != s2)
+ return FALSE;
+ if (s1 != -1 && sub1->list.multi[i].end.col
+ != sub2->list.multi[i].end.col)
+ return FALSE;
+ }
}
}
else
***************
*** 3992,3997 ****
--- 4010,4028 ----
sp2 = NULL;
if (sp1 != sp2)
return FALSE;
+ if (nfa_has_backref)
+ {
+ if (i < sub1->in_use)
+ sp1 = sub1->list.line[i].end;
+ else
+ sp1 = NULL;
+ if (i < sub2->in_use)
+ sp2 = sub2->list.line[i].end;
+ else
+ sp2 = NULL;
+ if (sp1 != sp2)
+ return FALSE;
+ }
}
}
*** ../vim-7.4.288/src/version.c 2014-05-13 14:03:36.425611242 +0200
--- src/version.c 2014-05-13 15:51:52.009668103 +0200
***************
*** 736,737 ****
--- 736,739 ----
{ /* Add new patch number below this line */
+ /**/
+ 289,
/**/
--
hundred-and-one symptoms of being an internet addict:
152. You find yourself falling for someone you've never seen or hardly
know, but, boy can he/she TYPE!!!!!!
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