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+To: vim_dev@googlegroups.com
+Subject: Patch 7.4.709
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.4.709
+Problem: ":tabmove" does not work as documented.
+Solution: Make it work consistently. Update documentation and add tests.
+ (Hirohito Higashi)
+Files: src/window.c, runtime/doc/tabpage.txt, src/ex_docmd.c,
+ src/testdir/test62.in, src/testdir/test62.ok
+
+
+*** ../vim-7.4.708/src/window.c 2015-04-21 15:43:00.338397578 +0200
+--- src/window.c 2015-04-21 18:05:36.180477302 +0200
+***************
+*** 4120,4137 ****
+ }
+
+ /*
+! * Move the current tab page to before tab page "nr".
+ */
+ void
+ tabpage_move(nr)
+ int nr;
+ {
+! int n = nr;
+! tabpage_T *tp;
+
+ if (first_tabpage->tp_next == NULL)
+ return;
+
+ /* Remove the current tab page from the list of tab pages. */
+ if (curtab == first_tabpage)
+ first_tabpage = curtab->tp_next;
+--- 4120,4146 ----
+ }
+
+ /*
+! * Move the current tab page to after tab page "nr".
+ */
+ void
+ tabpage_move(nr)
+ int nr;
+ {
+! int n = 1;
+! tabpage_T *tp, *tp_dst;
+
+ if (first_tabpage->tp_next == NULL)
+ return;
+
++ for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next)
++ ++n;
++
++ if (tp == curtab || (nr > 0 && tp->tp_next != NULL
++ && tp->tp_next == curtab))
++ return;
++
++ tp_dst = tp;
++
+ /* Remove the current tab page from the list of tab pages. */
+ if (curtab == first_tabpage)
+ first_tabpage = curtab->tp_next;
+***************
+*** 4146,4162 ****
+ }
+
+ /* Re-insert it at the specified position. */
+! if (n <= 0)
+ {
+ curtab->tp_next = first_tabpage;
+ first_tabpage = curtab;
+ }
+ else
+ {
+! for (tp = first_tabpage; tp->tp_next != NULL && n > 1; tp = tp->tp_next)
+! --n;
+! curtab->tp_next = tp->tp_next;
+! tp->tp_next = curtab;
+ }
+
+ /* Need to redraw the tabline. Tab page contents doesn't change. */
+--- 4155,4169 ----
+ }
+
+ /* Re-insert it at the specified position. */
+! if (nr <= 0)
+ {
+ curtab->tp_next = first_tabpage;
+ first_tabpage = curtab;
+ }
+ else
+ {
+! curtab->tp_next = tp_dst->tp_next;
+! tp_dst->tp_next = curtab;
+ }
+
+ /* Need to redraw the tabline. Tab page contents doesn't change. */
+*** ../vim-7.4.708/runtime/doc/tabpage.txt 2015-01-07 16:52:53.506792420 +0100
+--- runtime/doc/tabpage.txt 2015-04-21 18:01:53.042846350 +0200
+***************
+*** 202,224 ****
+ Move the current tab page to after tab page N. Use zero to
+ make the current tab page the first one. Without N the tab
+ page is made the last one. >
+ :-tabmove " move the tab page to the left
+! :tabmove " move the tab page to the right
+! :.tabmove " as above
+! :+tabmove " as above
+ :0tabmove " move the tab page to the beginning of the tab
+ " list
+! :$tabmove " move the tab page to the end of the tab list
+! <
+
+ :tabm[ove] +[N]
+ :tabm[ove] -[N]
+ Move the current tab page N places to the right (with +) or to
+! the left (with -).
+
+ Note that although it is possible to move a tab behind the N-th one by using
+! :Ntabmove, it is impossible to move it by N places by using :+Ntabmove. For
+! clarification what +N means in this context see |[range]|.
+
+
+ LOOPING OVER TAB PAGES:
+--- 202,230 ----
+ Move the current tab page to after tab page N. Use zero to
+ make the current tab page the first one. Without N the tab
+ page is made the last one. >
++ :.tabmove " do nothing
+ :-tabmove " move the tab page to the left
+! :+tabmove " move the tab page to the right
+ :0tabmove " move the tab page to the beginning of the tab
+ " list
+! :tabmove 0 " as above
+! :tabmove " move the tab page to the last
+! :$tabmove " as above
+! :tabmove $ " as above
+
+ :tabm[ove] +[N]
+ :tabm[ove] -[N]
+ Move the current tab page N places to the right (with +) or to
+! the left (with -). >
+! :tabmove - " move the tab page to the left
+! :tabmove -1 " as above
+! :tabmove + " move the tab page to the right
+! :tabmove +1 " as above
+!
+
+ Note that although it is possible to move a tab behind the N-th one by using
+! :Ntabmove. And move it by N places by using :+Ntabmove. For clarification what
+! +N means in this context see |[range]|.
+
+
+ LOOPING OVER TAB PAGES:
+*** ../vim-7.4.708/src/ex_docmd.c 2015-04-13 12:35:50.180593380 +0200
+--- src/ex_docmd.c 2015-04-21 18:01:53.042846350 +0200
+***************
+*** 8145,8151 ****
+ ex_tabmove(eap)
+ exarg_T *eap;
+ {
+! int tab_number = 9999;
+
+ if (eap->arg && *eap->arg != NUL)
+ {
+--- 8145,8151 ----
+ ex_tabmove(eap)
+ exarg_T *eap;
+ {
+! int tab_number;
+
+ if (eap->arg && *eap->arg != NUL)
+ {
+***************
+*** 8166,8184 ****
+ else
+ p = eap->arg;
+
+! if (p == skipdigits(p))
+ {
+! /* No numbers as argument. */
+! eap->errmsg = e_invarg;
+! return;
+ }
+-
+- tab_number = getdigits(&p);
+- if (relative != 0)
+- tab_number = tab_number * relative + tabpage_index(curtab) - 1;;
+ }
+ else if (eap->addr_count != 0)
+ tab_number = eap->line2;
+
+ tabpage_move(tab_number);
+ }
+--- 8166,8203 ----
+ else
+ p = eap->arg;
+
+! if (relative == 0)
+ {
+! if (STRCMP(p, "$") == 0)
+! tab_number = LAST_TAB_NR;
+! else if (p == skipdigits(p))
+! {
+! /* No numbers as argument. */
+! eap->errmsg = e_invarg;
+! return;
+! }
+! else
+! tab_number = getdigits(&p);
+! }
+! else
+! {
+! if (*p != NUL)
+! tab_number = getdigits(&p);
+! else
+! tab_number = 1;
+! tab_number = tab_number * relative + tabpage_index(curtab);
+! if (relative == -1)
+! --tab_number;
+ }
+ }
+ else if (eap->addr_count != 0)
++ {
+ tab_number = eap->line2;
++ if (**eap->cmdlinep == '-')
++ --tab_number;
++ }
++ else
++ tab_number = LAST_TAB_NR;
+
+ tabpage_move(tab_number);
+ }
+*** ../vim-7.4.708/src/testdir/test62.in 2015-01-07 15:57:13.145559792 +0100
+--- src/testdir/test62.in 2015-04-21 18:01:15.231247887 +0200
+***************
+*** 96,125 ****
+ :"
+ :for i in range(9) | tabnew | endfor
+ 1gt
+! Go=tabpagenr()
+ :tabmove 5
+! i=tabpagenr()
+ :tabmove -2
+! i=tabpagenr()
+ :tabmove +4
+! i=tabpagenr()
+ :tabmove
+! i=tabpagenr()
+ :tabmove -20
+! i=tabpagenr()
+ :tabmove +20
+! i=tabpagenr()
+ :3tabmove
+! i=tabpagenr()
+ :7tabmove 5
+! i=tabpagenr()
+ :let a='No error caught.'
+ :try
+ :tabmove foo
+ :catch E474
+ :let a='E474 caught.'
+ :endtry
+! i=a
+ :"
+ :" Test autocommands
+ :tabonly!
+--- 96,139 ----
+ :"
+ :for i in range(9) | tabnew | endfor
+ 1gt
+! :$put =tabpagenr()
+ :tabmove 5
+! :$put =tabpagenr()
+! :.tabmove
+! :$put =tabpagenr()
+! :tabmove -
+! :$put =tabpagenr()
+! :tabmove +
+! :$put =tabpagenr()
+ :tabmove -2
+! :$put =tabpagenr()
+ :tabmove +4
+! :$put =tabpagenr()
+ :tabmove
+! :$put =tabpagenr()
+ :tabmove -20
+! :$put =tabpagenr()
+ :tabmove +20
+! :$put =tabpagenr()
+! :0tabmove
+! :$put =tabpagenr()
+! :$tabmove
+! :$put =tabpagenr()
+! :tabmove 0
+! :$put =tabpagenr()
+! :tabmove $
+! :$put =tabpagenr()
+ :3tabmove
+! :$put =tabpagenr()
+ :7tabmove 5
+! :$put =tabpagenr()
+ :let a='No error caught.'
+ :try
+ :tabmove foo
+ :catch E474
+ :let a='E474 caught.'
+ :endtry
+! :$put =a
+ :"
+ :" Test autocommands
+ :tabonly!
+*** ../vim-7.4.708/src/testdir/test62.ok 2013-07-14 12:16:20.000000000 +0200
+--- src/testdir/test62.ok 2015-04-21 18:01:15.231247887 +0200
+***************
+*** 9,22 ****
+ tab drop 2: pass
+ tab drop 3: pass
+ 1
+! 6
+ 4
+! 8
+ 10
+ 1
+ 10
+ 4
+! 6
+ E474 caught.
+ === tab split ===
+ WinLeave
+--- 9,29 ----
+ tab drop 2: pass
+ tab drop 3: pass
+ 1
+! 5
+! 5
+ 4
+! 5
+! 3
+! 7
+! 10
+! 1
+! 10
+! 1
+ 10
+ 1
+ 10
+ 4
+! 5
+ E474 caught.
+ === tab split ===
+ WinLeave
+*** ../vim-7.4.708/src/version.c 2015-04-21 16:48:55.028917216 +0200
+--- src/version.c 2015-04-21 18:00:49.083525577 +0200
+***************
+*** 743,744 ****
+--- 743,746 ----
+ { /* Add new patch number below this line */
++ /**/
++ 709,
+ /**/
+
+--
+BEDEVERE: Why do you think she is a witch?
+SECOND VILLAGER: She turned me into a newt.
+BEDEVERE: A newt?
+SECOND VILLAGER: (After looking at himself for some time) I got better.
+ "Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD
+
+ /// 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 ///