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To: vim_dev@googlegroups.com
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Subject: Patch 7.4.577
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Fcc: outbox
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From: Bram Moolenaar <Bram@moolenaar.net>
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Mime-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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------------
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Patch 7.4.577
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Problem: Matching with a virtual column has a lot of overhead on very long
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lines. (Issue 310)
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Solution: Bail out early if there can't be a match. (Christian Brabandt)
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Also check for CTRL-C at every position.
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Files: src/regexp_nfa.c
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*** ../vim-7.4.576/src/regexp_nfa.c 2014-11-23 15:57:45.568009419 +0100
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--- src/regexp_nfa.c 2015-01-14 18:40:12.263887756 +0100
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***************
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*** 6438,6451 ****
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case NFA_VCOL:
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case NFA_VCOL_GT:
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case NFA_VCOL_LT:
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- result = nfa_re_num_cmp(t->state->val, t->state->c - NFA_VCOL,
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- (long_u)win_linetabsize(
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- reg_win == NULL ? curwin : reg_win,
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- regline, (colnr_T)(reginput - regline)) + 1);
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- if (result)
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{
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! add_here = TRUE;
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! add_state = t->state->out;
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}
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break;
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--- 6438,6461 ----
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case NFA_VCOL:
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case NFA_VCOL_GT:
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case NFA_VCOL_LT:
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{
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! int op = t->state->c - NFA_VCOL;
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! colnr_T col = (colnr_T)(reginput - regline);
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!
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! /* Bail out quickly when there can't be a match, avoid the
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! * overhead of win_linetabsize() on long lines. */
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! if ((col > t->state->val && op != 1)
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! || (col - 1 > t->state->val && op == 1))
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! break;
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! result = nfa_re_num_cmp(t->state->val, op,
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! (long_u)win_linetabsize(
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! reg_win == NULL ? curwin : reg_win,
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! regline, col) + 1);
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! if (result)
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! {
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! add_here = TRUE;
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! add_state = t->state->out;
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! }
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}
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break;
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***************
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*** 6744,6749 ****
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--- 6754,6764 ----
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reg_nextline();
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else
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break;
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+
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+ /* Allow interrupting with CTRL-C. */
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+ fast_breakcheck();
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+ if (got_int)
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+ break;
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}
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#ifdef ENABLE_LOG
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*** ../vim-7.4.576/src/version.c 2015-01-14 17:52:26.603094340 +0100
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--- src/version.c 2015-01-14 18:34:10.375843602 +0100
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***************
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*** 743,744 ****
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--- 743,746 ----
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{ /* Add new patch number below this line */
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+ /**/
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+ 577,
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/**/
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--
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From "know your smileys":
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!-| I-am-a-Cylon-Centurian-with-one-red-eye-bouncing-back-and-forth
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/// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
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/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
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\\\ an exciting new programming language -- http://www.Zimbu.org ///
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\\\ help me help AIDS victims -- http://ICCF-Holland.org ///
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