455 lines
19 KiB
Text
455 lines
19 KiB
Text
*SnipMate.txt* Plugin for using TextMate-style snippets in Vim.
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SnipMate *snippet* *snippets* *SnipMate*
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Last Change: December 27, 2009
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1. Description |SnipMate-description|
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2. Usage |SnipMate-usage|
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3. Interface and Settings |SnipMate-interface| |SnipMate-settings|
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4. Snippet syntax |SnipMate-syntax|
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5. Snippet sources |SnipMate-snippet-sources|
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6. Disadvantages to TextMate |SnipMate-disadvantages|
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7. Contact |SnipMate-contact|
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8. License |SnipMate-license|
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For Vim version 7.0 or later.
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This plugin only works if 'compatible' is not set.
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{Vi does not have any of these features.}
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SnipMate depends on vim-addon-mw-utils and tlib.
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==============================================================================
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DESCRIPTION *SnipMate-description*
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SnipMate implements snippet features in Vim. A snippet is like a template,
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reducing repetitive insertion of pieces of text. Snippets can contain
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placeholders for modifying the text if necessary or interpolated code for
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evaluation. For example, in C, typing "for" then pushing <Tab> could expand
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to: >
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for (i = 0; i < count; i++) {
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/* code */
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}
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SnipMate is inspired by TextMate's snippet features.
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==============================================================================
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USAGE *SnipMate-usage*
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Every snippet consists of an expansion and a trigger. Typing a trigger into
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your buffer and then hitting your trigger key (<Tab> by default, see
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|SnipMate-mappings|) will replace the trigger with the expansion text.
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The expansion text can optionally include tab stops. When it does, upon
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expansion of the snippet, the cursor is placed at the first one, and the user
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can jump between each tab stop. Each of these tab stops can be represented by
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default placeholder text. If such a placeholder is provided, then the text of
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the placeholder can be repeated in the snippet at specified mirrors. Any edits
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to the placeholder are instantly updated at every mirror.
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SnipMate allows multiple snippets to use the same trigger. When triggered,
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a list of all snippets with that trigger is provided and prompts for which
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snippet to use.
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*SnipMate-scopes*
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SnipMate searches for snippets inside a directory named "snippets" inside each
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entry in 'runtimepath'. Which files are loaded depends on 'filetype' and
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'syntax'; see |SnipMate-syntax| for more information. Snippets are loaded and
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refreshed automatically on demand.
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Note: SnipMate does not ship with any snippets. In order to use it, the user
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must either write their own snippets or obtain some from a repository like
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https://github.com/honza/vim-snippets
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==============================================================================
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INTERFACE AND SETTINGS *SnipMate-interface* *SnipMate-settings*
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*SnipMate-commands*
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Commands~
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*:SnipMateOpenSnippetFiles*
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:SnipMateOpenSnippetFiles Opens a list of all valid snippet locations
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based on the current scope |SnipMate-scopes|.
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Only existing files and non-existing .snippets
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files will be shown, with the existing files
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shown first.
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*SnipMate-options*
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Options~
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g:snips_author A variable used in some snippets in place of
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the author's (your) name. Similar to
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$TM_FULLNAME in TextMate. For example, >
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snippet name
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`g:snips_author`
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< creates a snippet "name" that expands to your
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name.
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g:snipMate This |Dictionary| contains other SnipMate
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options. In short add >
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let g:snipMate = {}
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< to your .vimrc before setting other SnipMate
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options.
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g:snipMate.scope_aliases A |Dictionary| associating certain filetypes
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with other scopes |SnipMate-scopes|. The
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entries consist of a filetype as the key and
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a comma-separated list of aliases as the
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value. For example, >
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let g:snipMate.scope_aliases = {}
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let g:snipMate.scope_aliases['ruby']
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\ = 'ruby,ruby-rails'
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< tells SnipMate that "ruby-rails" snippets in
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addition to "ruby" snippets should be loaded
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when editing files with 'filetype' set to
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"ruby" or contains "ruby" as an entry in the
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case of dotted filetypes.
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g:snipMate['no_match_completion_feedkeys_chars']
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A string inserted when no match for a trigger
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is found. By default a tab is inserted
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according to 'expandtab', 'tabstop', and
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'softtabstop'. Set it to the empty string to
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prevent anything from being inserted.
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*SnipMate-mappings*
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Mappings~
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The mappings SnipMate uses can be customized with the |:map| commands. For
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example, to change the key that triggers snippets and moves to the next
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tabstop, >
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:imap <C-J> <Plug>SnipMateNextOrTrigger
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:smap <C-J> <Plug>SnipMateNextOrTrigger
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The list of possible <Plug> mappings is as follows:
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<Plug>SnipMateNextOrTrigger Default: <Tab> Mode: Insert, Select
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Jumps to the next tab stop or, if none exists,
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try to expand a snippet. Use in both insert
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and select modes.
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<Plug>SnipMateBack Default: <S-Tab> Mode: Insert, Select
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Jump to the previous tab stop, if it exists.
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Use in both insert and select modes.
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<Plug>SnipMateShow Default: <C-R><Tab> Mode: Insert
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Show all available snippets (that start with
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the previous text, if it exists). Use in
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insert mode.
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<Plug>SnipMateVisual Default: <Tab> Mode: Visual
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See |SnipMate-visual|.
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Additionally, <CR> is mapped in visual mode in .snippets files for retabbing
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snippets.
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==============================================================================
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SYNTAX *snippet-syntax* *SnipMate-syntax*
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SnipMate looks inside of each entry of 'rtp' (or |SnipMate-snippet-sources|)
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for a directory named /snippets/. Based on the 'filetype' and 'syntax'
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settings (taking into account the dotted syntax), the following files are read
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for snippets: >
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.../snippets/<scope>.snippets
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.../snippets/<scope>/<name>.snippets
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.../snippets/<scope>/<trigger>.snippet
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.../snippets/<scope>/<trigger>/<description>.snippet
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where <scope> is an entry in 'filetype' or 'syntax', <name> is an arbitrary
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name, <trigger> is the trigger for a snippet, and <description> is
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a description used for |SnipMate-multisnip|.
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A .snippet file defines a single snippet with the trigger (and description)
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determined by the filename. The entire contents of the file are used as the
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snippet expansion text.
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Multiple snippets can be defined in *.snippets files. Each snippet definition
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looks something like: >
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snippet trigger optional description
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guard left_from_cursor='^\s*'
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expanded text
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more expanded text
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< *SnipMate-multisnip*
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The description is optional. If it is left out and a second snippet inside the
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same .snippets file uses the same trigger, the second one will overwrite the
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first. Otherwise multisnip is used.
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The guard condition line is also optional. It can be used to make a snippet
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available only in some cases. The value should be a VimL expression.
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Note: Hard tabs in the expansion text are required. When the snippet is
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expanded in the text and 'expandtab' is set, each tab will be replaced with
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spaces based on 'softtabstop' if nonzero or 'shiftwidth' otherwise.
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Comments can be made in .snippets files by starting a line with a # character.
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However these can't be used inside of snippet definitions: >
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# this is a correct comment
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snippet trigger
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expanded text
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snippet another_trigger
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# this isn't a comment!
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expanded text
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This should hopefully be clear with the included syntax highlighting.
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*snipMate-extends*
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Borrowing from UltiSnips, .snippets files can also contain an extends
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directive, for example: >
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extends html, javascript, css
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will tell SnipMate to also read html, javascript, and css snippets.
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*SnipMate-tabstops*
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Tab stops~
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A tab stop, specified by ${#} where # is a number, tells SnipMate where to
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position the cursor next. The special tab stop ${0} denotes the last cursor
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position; in its absence, the cursor is placed at the end of the snippet.
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For example, to place the cursor first on the id of a <div> tag, allow
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the user to press <tab> to go to the middle of it, and finally end after
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</div>: >
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snippet div
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<div id="${1}">
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${2}
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</div>
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< *SnipMate-placeholders* *SnipMate-mirrors*
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Placeholders and Mirrors~
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Placeholder text can be supplied using "${#:text}", where # is the number of
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the tab stop. This text then can be copied throughout the snippet using "$#",
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given # is the same number as used before. So, to make a C for loop: >
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snippet for
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for (${2:i}; $2 < ${1:count}; $1++) {
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${4}
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}
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This will cause "count" to first be selected and change if the user starts
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typing. When <tab> is pressed, the "i" in ${2}'s position will be selected;
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all $2 variables will default to "i" and automatically be updated if the user
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starts typing.
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NOTE: "$#" syntax is used only for mirrors, not for tab stops as in TextMate.
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Mirrors can also be used inside of placeholders. For instance: >
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snippet opt
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<option value="${1:option}">${2:$1}</option>
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Will, as usual, cause "option" to first be selected and update all the $1
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variables if the user starts typing. Since one of these variables is inside of
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${2}, this text will then be used as a placeholder for the next tab stop,
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allowing the user to change it if he wishes.
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To copy a value throughout a snippet without supplying default text, simply
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use the "${#:}" construct without the text, e.g.: >
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snippet foo
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${1:}bar$1
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< *SnipMate-visual*
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There is a special placeholder called {VISUAL}. If you visually select text,
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then press <Tab> Vim switches to insert mode. The next snippet you'll expand
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will replace {VISUAL} by the text which was selected previously.
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*SnipMate-eval*
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Interpolated Vim Script~
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Snippets can also contain Vim script commands that are executed (via |eval()|)
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when the snippet is inserted. Commands are given inside backticks (`...`); for
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TextMates's functionality, use the |system()| function. E.g.: >
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snippet date
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`system("date +%Y-%m-%d")`
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will insert the current date, assuming you are on a Unix system. Note that you
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can also (and should) use |strftime()| for this example.
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Filename([{expr}] [, {defaultText}]) *SnipMate-Filename()*
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Since the current filename is used often in snippets, a default function
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has been defined for it in SnipMate.vim, appropriately called Filename().
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With no arguments, the default filename without an extension is returned;
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the first argument specifies what to place before or after the filename,
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and the second argument supplies the default text to be used if the file
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has not been named. "$1" in the first argument is replaced with the filename;
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if you only want the filename to be returned, the first argument can be left
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blank. Examples: >
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snippet filename
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`Filename()`
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snippet filename_with_default
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`Filename('', 'name')`
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snippet filename_foo
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`Filename('$1_foo')`
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The first example returns the filename if it the file has been named, and an
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empty string if it hasn't. The second returns the filename if it's been named,
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and "name" if it hasn't. The third returns the filename followed by "_foo" if
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it has been named, and an empty string if it hasn't.
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==============================================================================
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SNIPPET SOURCES *SnipMate-snippet-sources*
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SnipMate is configurable.
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plugin/SnipMate.vim assigns three important keys: >
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" default implementation collecting snippets by handlers
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let g:SnipMate['get_snippets'] = SnipMate#GetSnippets
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" default handler:
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let g:SnipMateSources['default'] = SnipMate#DefaultPool
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" default directories containing snippets:
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let g:SnipMate['snippet_dirs']
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\ = funcref#Function('return split(&runtimepath,",")')
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You can override all of those settings.
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You can see that the default set of snippets is determined by Vim's 'rtp'.
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Example 1:~
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autoload/SnipMate_python_demo.vim shows how you can register additional
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sources such as creating snippets on the fly representing python function
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definitions found in the current file.
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Example 2:~
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Add to your ~/.vimrc: For each know snippet add a second version ending in _
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adding folding markers >
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let g:commentChar = {
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\ 'vim': '"',
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\ 'c': '//',
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\ 'cpp': '//',
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\ 'sh': '#',
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\ 'python': '#'
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\ }
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" url https://github.com/garbas/vim-snipmate/issues/49
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fun! AddFolding(text)
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return substitute(a:text,'\n'," ".g:commentChar[&ft]." {{{\n",1)."\n".g:commentChar[&ft]." }}}"
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endf
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fun! SnippetsWithFolding(scopes, trigger, result)
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" hacky: temporarely remove this function to prevent infinite recursion:
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call remove(g:SnipMateSources, 'with_folding')
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" get list of snippets:
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let result = SnipMate#GetSnippets(a:scopes, substitute(a:trigger,'_\(\*\)\?$','\1',''))
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let g:SnipMateSources['with_folding'] = funcref#Function('SnippetsWithFolding')
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" add folding:
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for k in keys(result)
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let a:result[k.'_'] = map(result[k],'AddFolding(v:val)')
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endfor
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endf
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" force setting default:
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runtime plugin/SnipMate.vim
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" add our own source
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let g:SnipMateSources['with_folding'] = funcref#Function('SnippetsWithFolding')
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See |SnipMate-syntax| for more details about all possible relative locations
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to 'rtp' can be found in.
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==============================================================================
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DISADVANTAGES *SnipMate-disadvantages*
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SnipMate.vim currently has the following disadvantages to TextMate's snippets:
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- Nested placeholders are not currently possible. E.g.: >
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'<div${1: id="${2:some_id}}">${3}</div>'
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< In TextMate this would first highlight ' id="some_id"', and if
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you hit delete it would automatically skip ${2} and go to ${3}
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on the next <tab>, but if you didn't delete it it would highlight
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"some_id" first. You cannot do this in SnipMate.vim.
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- Regex cannot be performed on variables, such as "${1/.*/\U&}"
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- Placeholders cannot span multiple lines.
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- Activating snippets in different scopes of the same file is
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not possible.
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Perhaps some of these features will be added in a later release.
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==============================================================================
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CHANGELOG *SnipMate-changelog*
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0.85 - 2013-04-03
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-----------------
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* Allow trigger key customization
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* Enable undoing of snippet expansion
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* Support backslash escaping in snippets
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* Add support for {VISUAL}
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* Expand filetype extension with scope_aliases
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* Add expansion guards
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* Enable per-buffer expansion of snippets
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* Fix 'cpo' compatibility
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* Update supertab compatibility
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* Enable customization of various things through g:SnipMate
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* Disable spelling in snippet files
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* Highlight trigger names in .snippets files
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* Update many snippets
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* Separate sample snippets into separate repository
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0.84
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----
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* Unreleased version by Michael Sanders, available on his GitHub,
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<https://github.com/msanders/snipmate.vim>
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0.83 - 2009-07-13
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-----------------
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* Last release done by Michael Sanders, available at
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<http://www.vim.org/scripts/script.php?script_id=2540>
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==============================================================================
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CONTACT *SnipMate-contact* *SnipMate-author*
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SnipMate is currently maintained by:
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- Rok Garbas
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- Marc Weber (marco-oweber@gmx.de)
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- Adnan Zafar
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For bug reports, issues, or questions, check out the Issues page on GitHub:
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https://github.com/garbas/vim-snipmate/issues
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The original author, Michael Sanders, can be reached at:
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msanders42+snipmate <at> gmail <dot> com
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==============================================================================
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LICENSE *SnipMate-license*
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SnipMate is released under the MIT license:
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Copyright 2009-2010 Michael Sanders. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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The software is provided "as is", without warranty of any kind, express or
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implied, including but not limited to the warranties of merchantability,
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fitness for a particular purpose and noninfringement. In no event shall the
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authors or copyright holders be liable for any claim, damages or other
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liability, whether in an action of contract, tort or otherwise, arising from,
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out of or in connection with the software or the use or other dealings in the
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software.
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==============================================================================
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vim:tw=78:ts=8:ft=help:norl:
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