# coot/cmdalias_vim

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 *cmdalias.txt* Command Alias Plugin Last change: 05 October 2012 Author: Marcin Szamotulski Email: mszamot [AT] gmail [DOT] com GitHub: https://github.com/coot/cmdalias_vim.git Copyright: © Marcin Szamotulski, 2012 License: vim-license, see |license| COMMAND ALIAS PLUGIN *cmdalias* This plugin implements aliases for command names, wihtout vim restriction: user defined commands via :command must begin with a captial letter. Using this plugin you make an alias to a command where the alias, is any sequence. You can also register a defult range or count with the alias. In this way you can change the default range or count of vim commands. To define alias use the command: *cmdalias-:CmdAlias* > :CmdAlias [alias] [range][command] [history] [buflocal] [match_end] < where [alias] is the alias name, [command] is the command that should be executed. You might pretend new default [range] or count to the command. The [alias] is any vim pattern that will be used to match what you are entering in the ':' command line (the pattern will have pretended '\C^' and appended '\>' - the later one unless [match_end] is specified and equal 0). For commands which do not run external programs you can also set [history]=1 (default is 0), then the command history will remember what you have typped rather than what was executed. But usage of it is limited, for example you can use with commands that echo some output because it will be hidden by next call to histdel() vim function. If [buflocal] has true value (1 for example) then the alias will be only valid in the current buffer (it will be denotes with @ when listing the aliases as Vim does for maps). Note: If you define [match_end] = 0 you might fall into troubles, simply because a the plugin might substitute part of a command name. So don't use it unless you really want to experiment - you've been warned ;). If you don't provide any argument to the :CmdAlias command it will list all aliases. The order in which you define aliases matters. More recent aliases are matched first. If you want to list the aliases in alfabetic order use: > :CmdAlias < If you want to list them in the order they are tried: > :CmdAlias! < Note that > :CmdAlias {alias} < will list all aliases which starts with {alias} but > :CmdAlias! {alias} < will remove the {alias} (has to be equal to the registered alias). Examples: ~ ========= > :CmdAlias ali\%[as] CmdAlias < Note: this alias would not work if we defined it with [history]=1. > :CmdAlias s %s < Change the default range of :s command from the current line to whole buffer. Note that :su will act with vim default range (the current line). > :CmdAlias a\%[ppend] Append < define alias to the user command Append which will overwrite the vim command :append. The \%[...] allows that if you type: 'a' or 'ap' or 'app', ... or 'append' then the Append command will be used (as with vim many commands) > :CmdAlias bc\%[lose] BufClose < You will find the handy BufClose command in BufClose plugin by Christian Robinson. Tip: to find if an alias is not coliding type ':'. See ':help c^D'. > :CmdAlias SP 1,/\\\\begin{document}/-1s < The :SP command will substitute in the LaTeX preambule (which starts in the first line and ends before \begin{document}). Note that the Vim pattern to find \begin... is \\begin... and each backslash needs to be escaped onece more. Thus we have four slashes (like in *Python* :). VIMRC: ~ ====== To configure aliases on startup you haveto add the following lines to your vimrc file: > augroup VIMRC_aliases au! au VimEnter * CmdAlias ... ... augroup END < Other Commands and Maps: ~ ======================== *cmdalias-:CmdAliasToggle* > :CmdAliasToggle < toggles on/of the aliases. Since the plugin remaps in the command line this just delets/sets up the map. When you want to type a function: > :fun! X() < The plugin also defines map to which doesn't trigger aliasing mechanism. So you can type ':fun! X()' on the command line. *cmdalias-:CmdAlias!* > :CmdAlias! {alias} < removes {alias}, this command has a nice completion. Note: If you have installed my [system plugin](http://www.vim.org/scripts/script.php?script_id=4224) you need to update it to version 3 (otherwise you will get an error). There is another plugin (http://www.vim.org/scripts/script.php?script_id=746) with the same functionality, but different implementation and thus a different limitations. It uses cabbreviations. The problem with them is that it is more difficult to get the command bang working (what was the purpose of implementing this plugin). The range and the count probably could be implemented using the same range parser used by this plugin. The advantage of the cabbreviations approach is that after hitting the ' ' you get the real command together with its completion. Implementing completion for aliases within this approach would be quite tedious. The aliasing works also when joining commands on the command line with "|", for example with a dummy alias: > Alias S %s < you can run: > :S/aaa/yyy/|S/bbb/xxx < Note: the first command has to end with / (to use |, this is a vim requirement.) Note: using the expression register: you need Vim 7.3.686. There is also: > cnoremap < It will not trigger aliases, any way it might be a good idea to have such a map in case you want to avoid aliases. If you want to debug define a list: > let g:cmd_alias_debug = [] < and for all calls an entry to this list will be appended. (except command lines which matches cmd_alias_debug since we don't want to record accessing to this variable) Some ideas for useful aliases: > CmdAlias re reg\ "0-*+/ 1 CmdAlias rn reg\ 123456789 1 CmdAlias ra reg abcdefghijklmnopqrstuwxyz 1 CmdAlias bc\%[lose] BufClose < For the last alias one you need the BufClose plugin (http://www.vim.org/scripts/script.php?script_id=559).
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