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To: vim_dev@googlegroups.com
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Subject: Patch 7.4.414
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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 7.4.414
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Problem: Cannot define a command only when it's used.
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Solution: Add the CmdUndefined autocommand event. (partly by Yasuhiro
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Matsumoto)
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Files: runtime/doc/autocmd.txt, src/ex_docmd.c, src/fileio.c,
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src/proto/fileio.pro
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*** ../vim-7.4.413/runtime/doc/autocmd.txt 2013-11-28 18:53:47.000000000 +0100
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--- runtime/doc/autocmd.txt 2014-08-22 20:10:24.026988365 +0200
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***************
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*** 278,283 ****
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--- 278,284 ----
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|ShellCmdPost| after executing a shell command
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|ShellFilterPost| after filtering with a shell command
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+ |CmdUndefined| a user command is used but it isn't defined
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|FuncUndefined| a user function is used but it isn't defined
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|SpellFileMissing| a spell file is used but it can't be found
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|SourcePre| before sourcing a Vim script
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***************
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*** 462,467 ****
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--- 466,481 ----
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*BufWritePost*
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BufWritePost After writing the whole buffer to a file
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(should undo the commands for BufWritePre).
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+ *CmdUndefined*
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+ CmdUndefined When a user command is used but it isn't
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+ defined. Useful for defining a command only
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+ when it's used. The pattern is matched
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+ against the command name. Both <amatch> and
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+ <afile> are set to the name of the command.
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+ NOTE: Autocompletion won't work until the
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+ command is defined. An alternative is to
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+ always define the user command and have it
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+ invoke an autoloaded function. See |autoload|.
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*CmdwinEnter*
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CmdwinEnter After entering the command-line window.
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Useful for setting options specifically for
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***************
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*** 663,668 ****
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--- 681,688 ----
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when it's used. The pattern is matched
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against the function name. Both <amatch> and
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<afile> are set to the name of the function.
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+ NOTE: When writing Vim scripts a better
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+ alternative is to use an autoloaded function.
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See |autoload-functions|.
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*GUIEnter*
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GUIEnter After starting the GUI successfully, and after
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*** ../vim-7.4.413/src/ex_docmd.c 2014-08-10 13:34:59.056785459 +0200
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--- src/ex_docmd.c 2014-08-22 20:23:43.426959373 +0200
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***************
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*** 2143,2148 ****
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--- 2143,2168 ----
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/* Find the command and let "p" point to after it. */
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p = find_command(&ea, NULL);
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+ #ifdef FEAT_AUTOCMD
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+ /* If this looks like an undefined user command and there are CmdUndefined
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+ * autocommands defined, trigger the matching autocommands. */
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+ if (p != NULL && ea.cmdidx == CMD_SIZE && !ea.skip
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+ && ASCII_ISUPPER(*ea.cmd)
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+ && has_cmdundefined())
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+ {
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+ char_u *p = ea.cmd;
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+ int ret;
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+
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+ while (ASCII_ISALNUM(*p))
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+ ++p;
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+ p = vim_strnsave(ea.cmd, p - ea.cmd);
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+ ret = apply_autocmds(EVENT_CMDUNDEFINED, p, p, TRUE, NULL);
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+ vim_free(p);
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+ if (ret && !aborting())
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+ p = find_command(&ea, NULL);
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+ }
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+ #endif
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+
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#ifdef FEAT_USR_CMDS
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if (p == NULL)
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{
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*** ../vim-7.4.413/src/fileio.c 2014-08-13 21:58:24.820885492 +0200
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--- src/fileio.c 2014-08-22 20:25:26.826955623 +0200
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***************
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*** 7641,7646 ****
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--- 7641,7647 ----
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{"BufWriteCmd", EVENT_BUFWRITECMD},
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{"CmdwinEnter", EVENT_CMDWINENTER},
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{"CmdwinLeave", EVENT_CMDWINLEAVE},
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+ {"CmdUndefined", EVENT_CMDUNDEFINED},
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{"ColorScheme", EVENT_COLORSCHEME},
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{"CompleteDone", EVENT_COMPLETEDONE},
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{"CursorHold", EVENT_CURSORHOLD},
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***************
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*** 9159,9164 ****
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--- 9160,9183 ----
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return (first_autopat[(int)EVENT_INSERTCHARPRE] != NULL);
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}
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+ /*
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+ * Return TRUE when there is an CmdUndefined autocommand defined.
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+ */
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+ int
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+ has_cmdundefined()
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+ {
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+ return (first_autopat[(int)EVENT_CMDUNDEFINED] != NULL);
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+ }
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+
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+ /*
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+ * Return TRUE when there is an FuncUndefined autocommand defined.
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+ */
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+ int
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+ has_funcundefined()
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+ {
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+ return (first_autopat[(int)EVENT_FUNCUNDEFINED] != NULL);
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+ }
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+
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static int
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apply_autocmds_group(event, fname, fname_io, force, group, buf, eap)
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event_T event;
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*** ../vim-7.4.413/src/proto/fileio.pro 2014-08-10 13:34:59.060785459 +0200
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--- src/proto/fileio.pro 2014-08-22 20:25:38.862955186 +0200
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***************
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*** 47,52 ****
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--- 47,54 ----
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int has_textchanged __ARGS((void));
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int has_textchangedI __ARGS((void));
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int has_insertcharpre __ARGS((void));
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+ int has_cmdundefined __ARGS((void));
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+ int has_funcundefined __ARGS((void));
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void block_autocmds __ARGS((void));
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void unblock_autocmds __ARGS((void));
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int is_autocmd_blocked __ARGS((void));
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*** ../vim-7.4.413/src/version.c 2014-08-22 18:44:30.307175276 +0200
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--- src/version.c 2014-08-22 20:55:31.406890176 +0200
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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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+ 414,
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/**/
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--
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hundred-and-one symptoms of being an internet addict:
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44. Your friends no longer send you e-mail...they just log on to your IRC
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channel.
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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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