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ddc.txt
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*ddc.txt* Dark deno-powered completion framework for neovim/Vim
Author: Shougo <Shougo.Matsu at gmail.com>
License: MIT license
CONTENTS *ddc-contents*
Introduction |ddc-introduction|
Install |ddc-install|
Interface |ddc-interface|
Options |ddc-options|
Functions |ddc-functions|
Custom Functions |ddc-custom-functions|
Key mappings |ddc-key-mappings|
Events |ddc-events|
Examples |ddc-examples|
UIs |ddc-uis|
UI option |ddc-ui-options|
UI params |ddc-ui-params|
Sources |ddc-sources|
Source option |ddc-source-options|
Source params |ddc-source-params|
Filters |ddc-filters|
Filter options |ddc-filter-options|
Filter params |ddc-filter-params|
Types |ddc-types|
Create UI |ddc-create-ui|
UI attributes |ddc-ui-attributes|
Create source |ddc-create-source|
Source attributes |ddc-source-attributes|
Item attributes |ddc-item-attributes|
Create filter |ddc-create-filter|
filter attributes |ddc-filter-attributes|
Previewer |ddc-previewer|
previewer attributes |ddc-previewer-attributes|
FAQ |ddc-faq|
Compatibility |ddc-compatibility|
==============================================================================
INTRODUCTION *ddc-introduction*
*ddc* is the abbreviation of "dark deno-powered completion". It provides an
asynchronous keyword completion system in the current buffer.
If you don't want to configure plugins, you don't have to use the plugin.
It does not work with zero configuration. You can use other plugins.
==============================================================================
INSTALL *ddc-install*
NOTE: Ddc.vim requires Neovim (0.8.0+) or Vim 9.0.1276+ (latest is
recommended).
Please install both Deno 1.45+ and "denops.vim" v7.0+.
https://deno.land/
https://github.com/vim-denops/denops.vim
NOTE: Ddc.vim does not include any UIs, sources and filters.
You must install them which you want manually.
You can search ddc.vim plugins(UIs, sources and filters) from
https://github.com/topics/ddc-vim.
==============================================================================
INTERFACE *ddc-interface*
------------------------------------------------------------------------------
OPTIONS *ddc-options*
Options can be toggled through the use of |ddc#custom#patch_global()|.
For example:
>
" Set a single option
call ddc#custom#patch_global('ui', 'native')
" Pass a dictionary to set multiple options
call ddc#custom#patch_global(#{
\ sourceOptions: #{
\ _: #{
\ keywordPattern: '[a-zA-Z_]\w*',
\ },
\ },
\ smartCase: v:true,
\ })
call ddc#custom#patch_filetype(['c', 'cpp'], 'sources', ['around'])
<
The set of available options follows.
*ddc-option-autoCompleteDelay*
autoCompleteDelay
Delay the completion after input in milliseconds.
Default: 0
*ddc-option-autoCompleteEvents*
autoCompleteEvents
The events to fire auto completion or narrow current items.
It must be list of |autocmd-events| string.
NOTE: Supported events is described in |ddc-events|.
Default: [
"InsertEnter", "TextChangedI", "TextChangedP",
]
*ddc-option-backspaceCompletion*
backspaceCompletion
If it is enabled, ddc.vim will complete even when backspace is
typed.
NOTE: It is disabled by default since backspace completion
will cause screen flicker.
Default: v:false
*ddc-option-cmdlineSources*
cmdlineSources
It is a list of elements like |ddc-option-sources| or the
dictionary.
The dictionary key is command line type from |getcmdtype()|.
The dictionary value is a list of elements like
|ddc-option-sources|.
It is used for |Command-line-mode|.
NOTE: If you set it, |input()| auto completion is enabled.
NOTE: "ddc-ui-pum" is required for the feature.
https://github.com/Shougo/ddc-ui-pum
Default: []
>
" e.g.
call ddc#custom#patch_global('cmdlineSources', {
\ ':': ['cmdline-history', 'cmdline', 'around'],
\ '@': ['cmdline-history', 'input', 'file', 'around'],
\ '>': ['cmdline-history', 'input', 'file', 'around'],
\ '/': ['around', 'line'],
\ '?': ['around', 'line'],
\ '-': ['around', 'line'],
\ '=': ['input'],
\ })
<
*ddc-option-filterOptions*
filterOptions
It is a dictionary that maps filter names to its options.
See also |ddc-filter-options|.
Default: {}
>
" e.g.
call ddc#custom#patch_global('filterOptions', #{
\ matcher_head: {},
\ })
<
*ddc-option-filterParams*
filterParams
It is a dictionary that maps filter names to its parameters.
Default: {}
>
" e.g.
call ddc#custom#patch_global('filterParams', #{
\ matcher_head: {},
\ })
<
*ddc-option-hideOnEvents*
hideOnEvents
If it is enabled, ddc.vim will hide UI when
|ddc-option-autoCompleteEvents| is fired.
NOTE: It will increase screen flicker.
Default: v:false
*ddc-option-keywordPattern*
keywordPattern
NOTE: The option is deprecated.
Please use |ddc-source-option-keywordPattern| instead.
*ddc-option-postFilters*
postFilters
It is a list of elements like |ddc-source-option-matchers|.
It is called after the items are filtered.
It is useful if you want to sort items regardless source
orders.
Default: []
*ddc-option-sources*
sources
It is a list of elements which are formatted as:
>
#{
name: {source-name},
options: {source-options},
params: {source-params},
}
<
You have to select one or more sources to use completion.
Items from sources with smaller indexes will have smaller
indexes.
Default: []
>
" e.g.
call ddc#custom#patch_global('sources', ['around'])
<
*ddc-option-sourceOptions*
sourceOptions
It is a dictionary that maps source names to its options. The
options with the name "_" is used as the options for all
sources.
See also |ddc-source-options|.
Default: {}
>
" e.g.
call ddc#custom#patch_global('sourceOptions', #{
\ _: #{ matchers: ['matcher_head'] },
\ around: #{ mark: 'A' },
\ })
<
*ddc-option-sourceParams*
sourceParams
It is a dictionary that maps source names to its parameters.
See also |ddc-source-params|.
Default: {}
>
" e.g.
call ddc#custom#patch_global('sourceParams', #{
\ around: #{ max: 8 },
\ })
<
*ddc-option-specialBufferCompletion*
specialBufferCompletion
If it is false and 'buftype' is not "", ddc auto completion is
disabled automatically.
Default: v:false
*ddc-option-ui*
ui
Specify UI name.
NOTE: You must set the option in the first.
Default: ""
*ddc-option-uiOptions*
uiOptions
It is a dictionary that maps UI names to its options. The
options with the name "_" is used as the options for all
UIs.
See also |ddc-ui-options|.
Default: {}
*ddc-option-uiParams*
uiParams
It is a dictionary that maps UI names to its parameters.
See also |ddc-ui-params|.
Default: {}
------------------------------------------------------------------------------
FUNCTIONS *ddc-functions*
*ddc#callback()*
ddc#callback({id} [, {payload}])
This is only for ddc plugin developers. It calls back to
sources and filters that registered with this id.
NOTE: It is for Vim script callback functions like LSP. It
does not work for deno async functions.
{id}: String to identify the receiver. All sources and filters
share the namespace, so please take care how naming.
`source/${this.name}` and `filter/${this.name}` are
recommended.
{payload}: Arbitrary object passed as resolved. The default
value is |v:null|.
*ddc#disable()*
ddc#disable()
Disable ddc.vim all features permanently.
It should be used when ddc.vim is broken.
It should not be used for temporary plugin disable.
NOTE: It changes the global state.
*ddc#enable()*
ddc#enable([{opts}])
Enable ddc.vim features and you can use it.
{opts} is dictionary and it has the following keys.
"context_filetype": Use context based filetype.
"context_filetype": Use "context_filetype.vim" plugin.
"treesitter": Use |treesitter| feature in neovim.
"none": Use current buffer 'filetype'.
Default: "none"
NOTE: It changes the global state.
*ddc#enable_cmdline_completion()*
ddc#enable_cmdline_completion()
Enable ddc.vim command line completion feature for next
command line session.
"DDCCmdlineLeave" |User| autocmd is called after command line
leave.
NOTE: The command line completion is disabled after command
line leave.
NOTE: It must be called before command line mode.
NOTE: "ddc-ui-pum" is required for the feature.
https://github.com/Shougo/ddc-ui-pum
*ddc#enable_terminal_completion()*
ddc#enable_terminal_completion()
Enable ddc.vim terminal completion feature.
NOTE: "ddc-ui-pum" is required for the feature.
https://github.com/Shougo/ddc-ui-pum
NOTE: It is experimental feature in Vim. neovim is
recommended.
*ddc#get_previewer()*
ddc#get_previewer({item}[, {context}])
Get |ddc-previewer| from {item}.
{context} is used as preview window context.
It is useful to render preview information dynamically.
*ddc#hide()*
ddc#hide([{event}])
Hide current completion UI.
{event} is completion event.
It must be list of |autocmd-events| string or "Manual" or
"Initialize" or "Update".
NOTE: It is used to cancel the completion.
NOTE: It does not restore inserted text.
>
inoremap <C-e> <Cmd>call ddc#hide()<CR>
<
*ddc#on_complete_done()*
ddc#on_complete_done({completed_item})
It must be called when completion item is completed.
The UI calls the API.
*ddc#on_event()*
ddc#on_event({event})
Call ddc "onEvent" callback manually.
Please see |ddc-events|.
*ddc#register()*
ddc#register({type}, {path})
Register ddc extension.
{type} is "ui" or "source" or "filter".
{path} is ddc extension path.
NOTE: {path} must be full path.
*ddc#set_static_import_path()*
ddc#set_static_import_path()
Make static import file to optimize load ddc extensions from
current 'runtimepath'.
NOTE: It should be called if you have updated plugins.
NOTE: It changes "denops/ddc/_mods.js" in the repository.
"--skip-worktree" is recommended if you use "git".
>
$ git update-index --skip-worktree denops/ddc/_mods.js
<
*ddc#skip_next_complete()*
ddc#skip_next_complete()
Skip the next auto completion.
It is used to disable auto completion.
*ddc#syntax#get()*
ddc#syntax#get()
Get current syntax groups.
NOTE: "nvim-treesitter" is used if it is installed.
*ddc#syntax#in()*
ddc#syntax#in({checks})
Check {checks} syntax groups in cursor.
*ddc#update_items()*
ddc#update_items({name}, {items})
Change source {name}'s items to {items} and refresh current
completion.
It is useful to create asynchronous sources. But it increases
screen flicker.
NOTE: It does not work for volatile source.
*ddc#visible()*
ddc#visible()
Return |v:true| when current completion UI is visible.
CUSTOM FUNCTIONS *ddc-custom-functions*
*ddc#custom#alias()*
ddc#custom#alias({type}, {alias-name}, {base-name})
Define {alias-name} alias based on {base-name}.
{type} must be "source" or "filter".
NOTE: It must be called before sources/filters initialization.
>
call ddc#custom#alias('source', 'foo', 'around')
call ddc#custom#patch_global('sources', ['foo'])
call ddc#custom#patch_global('sourceOptions', #{
\ _: #{
\ matchers: ['matcher_head'],
\ sorters: ['sorter_rank'],
\ converters: ['converter_remove_overlap'],
\ },
\ around: #{ mark: 'A' },
\ foo: #{ mark: 'foo' },
\ })
<
*ddc#custom#get_buffer()*
ddc#custom#get_buffer()
Get current buffer specific options.
NOTE: It must be called after |DenopsReady|.
*ddc#custom#get_current()*
ddc#custom#get_current()
Get current options.
NOTE: It must be called after |DenopsReady|.
*ddc#custom#get_filetype()*
ddc#custom#get_filetype()
Get filetype specific options.
NOTE: It must be called after |DenopsReady|.
*ddc#custom#get_context()*
ddc#custom#get_context()
Get context specific options.
NOTE: It must be called after |DenopsReady|.
*ddc#custom#get_global()*
ddc#custom#get_global()
Get global options.
NOTE: It must be called after |DenopsReady|.
*ddc#custom#load_config()*
ddc#custom#load_config({path})
Load TypeScript configuration from {path} file.
NOTE: {path} must be full path.
NOTE: The loading is asynchronous.
*ddc#custom#patch_buffer()*
ddc#custom#patch_buffer({option-name}, {value})
ddc#custom#patch_buffer({dict})
Set local options on current buffer. The arguments are the
same as for |ddc#custom#patch_global()|.
*ddc#custom#patch_filetype()*
ddc#custom#patch_filetype({filetype}, {option-name}, {value})
ddc#custom#patch_filetype({filetype}, {dict})
Set options used for filetypes. {filetype} accepts a string or
a list of strings. Options are {dict} or {'{option-name}':
{value}}.
*ddc#custom#patch_global()*
ddc#custom#patch_global({option-name}, {value})
ddc#custom#patch_global({dict})
Set {option-name} option to {value}.
If {dict} is available, the key is {option-name} and the value
is {value}. See |ddc-options| for available {option-name}.
*ddc#custom#set_buffer()*
ddc#custom#set_buffer({dict})
Overwrites all local options on current buffer.
The {dict} is the same as for |ddc#custom#set_global()|.
*ddc#custom#set_filetype()*
ddc#custom#set_filetype({filetype}, {dict})
Overwrites all options used for filetypes. {filetype} accepts
a string or a list of strings.
The {dict} is the same as for |ddc#custom#set_global()|.
*ddc#custom#set_global()*
ddc#custom#set_global({dict})
Overwrites all global options.
The key is {option-name} and the value is {value} in {dict}.
See |ddc-options| for available {option-name}.
*ddc#custom#set_context_buffer()*
ddc#custom#set_context_buffer({func})
Overwrites buffer specific options used for context.
{func} is function. {func} returns overwrites options
dictionary.
NOTE: {func} is evaluated after user input and it affects
completion performance.
*ddc#custom#set_context_filetype()*
ddc#custom#set_context_filetype({filetype}, {func})
Overwrites filetype specific options used for context.
{filetype} accepts a string or a list of strings.
{func} is function. {func} returns overwrites options
dictionary.
NOTE: {func} is evaluated after user input and it affects
completion performance.
>
call ddc#custom#set_context_filetype('go', { ->
\ ddc#syntax#in('TSComment') ? {
\ 'sources': ['nextword', 'around'],
\ } : {} })
call ddc#custom#set_context_filetype('c', { ->
\ ddc#syntax#in('Comment') ? {
\ 'sources': ['nextword', 'around'],
\ } : {} })
<
*ddc#custom#set_context_global()*
ddc#custom#set_context_global({func})
Overwrites global options used for context.
{func} is function. {func} returns overwrites options
dictionary.
NOTE: {func} is evaluated after user input and it affects
completion performance.
------------------------------------------------------------------------------
KEY MAPPINGS *ddc-key-mappings*
*ddc#map#can_complete()*
ddc#map#can_complete()
Return |v:true| if current word completion is available.
*ddc#map#complete()*
ddc#map#complete({ui-name})
Open current completion popup menu by {ui-name}.
NOTE: It must be in |:map-<expr>|.
*ddc#map#complete_common_string()*
ddc#map#complete_common_string()
Complete common string in items.
This can be useful when items have a long common prefix.
NOTE: It must be in |:map-<expr>|.
*ddc#map#extend()*
ddc#map#extend({confirm-key})
Confirm the items and extend current completion.
{confirm-key} is popup confirm key like <C-y>.
NOTE: It must be in |:map-<expr>|.
*ddc#map#insert_item()*
ddc#map#insert_item({index})
Insert the item at index {index}. Indices start at 0.
NOTE: It must be in |:map-<expr>|.
NOTE: |v:completed_item| must be writable.
*ddc#map#manual_complete()*
ddc#map#manual_complete([{options}])
Manual trigger ddc completion.
{options} is |ddc-options|.
NOTE: Manual completion ignores
|ddc-source-option-minAutoCompleteLength|.
NOTE: After you open completion UI in manual completion, your
next input will be used as manual completion until the items
are empty or |ddc#hide()| is called.
NOTE: If you want to narrow manual completion items, you must
set |ddc-option-autoCompleteEvents|.
------------------------------------------------------------------------------
EVENTS *ddc-events*
Below events are only supported.
"Initialize": Called when ddc is initialized.
"Manual": Called when |ddc#map#manual_complete()|.
"Update": Called when |ddc#update_items()|.
Default |:autocmd| events:
|TextChangedI|, |TextChangedP|,
|InsertEnter|, |InsertLeave|,
|CmdlineEnter|, |CmdlineLeave|,
|BufEnter|, |BufLeave|,
|FileType|,
|CompleteDone|,
|CmdlineChanged| (|ddc#enable_cmdline_completion()|),
|TextChangedT| (|ddc#enable_terminal_completion()|),
NOTE: You can call events manually by |ddc#on_event()|.
==============================================================================
EXAMPLES *ddc-examples*
>
" Customize global settings
" You must set the default ui.
" NOTE: native ui
" https://github.com/Shougo/ddc-ui-native
call ddc#custom#patch_global('ui', 'native')
" Use around source.
" https://github.com/Shougo/ddc-source-around
call ddc#custom#patch_global('sources', ['around'])
" Use matcher_head and sorter_rank.
" https://github.com/Shougo/ddc-matcher_head
" https://github.com/Shougo/ddc-sorter_rank
call ddc#custom#patch_global('sourceOptions', #{
\ _: #{
\ matchers: ['matcher_head'],
\ sorters: ['sorter_rank']},
\ },
\ )
" Change source options
call ddc#custom#patch_global('sourceOptions', #{
\ around: #{ mark: 'A' },
\ })
call ddc#custom#patch_global('sourceParams', #{
\ around: #{ maxSize: 500 },
\ })
" Customize settings on a filetype
call ddc#custom#patch_filetype(
\ ['c', 'cpp'], 'sources', ['around', 'clangd']
\ )
call ddc#custom#patch_filetype(['c', 'cpp'], 'sourceOptions', #{
\ clangd: #{ mark: 'C' },
\ })
call ddc#custom#patch_filetype('markdown', 'sourceParams', #{
\ around: #{ maxSize: 100 },
\ })
" Mappings
" <TAB>: completion.
" NOTE: It does not work for pum.vim
"inoremap <expr> <TAB>
"\ pumvisible() ? '<C-n>' :
"\ (col('.') <= 1 <Bar><Bar> getline('.')[col('.') - 2] =~# '\s') ?
"\ '<TAB>' : ddc#map#manual_complete()
" <S-TAB>: completion back.
" NOTE: It does not work for pum.vim
"inoremap <expr> <S-TAB> pumvisible() ? '<C-p>' : '<C-h>'
" Use ddc.
call ddc#enable()
<
==============================================================================
UIS *ddc-uis*
NOTE: The UIs are not bundled in ddc.vim. You need to install them
to use ddc.vim. Please search them by https://github.com/topics/ddc-ui
NOTE: The default UI is empty. You need to configure it to use ddc.
The UIs must put under "denops/@ddc-uis/*.ts".
NOTE: The name is named by file name.
------------------------------------------------------------------------------
UI OPTIONS *ddc-ui-options*
Undefined now
------------------------------------------------------------------------------
UI PARAMS *ddc-ui-params*
These are the parameters that each UIs can have. You can select the
behavior and tune the performance.
Please read the UI documentation.
==============================================================================
SOURCES *ddc-sources*
NOTE: The sources are not bundled in ddc.vim. You need to install them
to use ddc.vim. Please search them by https://github.com/topics/ddc-source
NOTE: The default sources are empty. You need to
configure them to use ddc.
The sources must put under "denops/@ddc-sources/*.ts".
NOTE: The name is named by file name.
------------------------------------------------------------------------------
SOURCE OPTIONS *ddc-source-options*
NOTE: The sources cannot set default options. If they need to specify the
recommended configuration, you should write it in the documentation instead.
*ddc-source-option-converters*
converters (string[])
It is a list of elements like |ddc-source-option-matchers|.
They change items attributes.
Items will be processed in the order you specify here.
Default: []
*ddc-source-option-dup*
dup (string) (Optional)
It changes duplicated words behavior.
"force": Duplicated words are overwritten.
"keep": Duplicated words are added.
"ignore": Duplicated words are removed.
Default: "ignore"
*ddc-source-option-enabledIf*
enabledIf (string)
The text is evaluated to enable the source.
If the result is |v:true| or the text is empty string, the
source is enabled.
Default: ''
*ddc-source-option-forceCompletionPattern*
forceCompletionPattern (string)
If it matches the input, ddc ignores
|ddc-source-option-minAutoCompleteLength|.
NOTE: It is JavaScript regexp.
Default: ''
*ddc-source-option-keywordPattern*
keywordPattern
It defines the keyword pattern for completion.
NOTE: It is JavaScript regexp.
NOTE: "\k" is converted to "['iskeyword']" pattern.
NOTE: "[:keyword:]" is converted to 'iskeyword' pattern.
NOTE: The source/filter must convert 'iskeyword' to use it.
Default: '\k*'
*ddc-source-option-ignoreCase*
ignoreCase (boolean)
If it is True, ddc ignores case.
Default: v:false
*ddc-source-option-isVolatile*
isVolatile (boolean)
If it is True, ddc refresh items always.
Default: v:false
*ddc-source-option-mark*
mark (string)
A text icon indicating the source displayed with the item.
NOTE: If the source set item menu, the source must set it. If
the attribute is empty string, the item menu will be disabled.
Default: ""
*ddc-source-option-matcherKey*
matcherKey (string)
Matcher compare key instead of "word".
If it is empty string, the feature is disabled.
Default: ""
*ddc-source-option-matchers*
matchers (string[])
It is a list of elements which are formatted as:
>
#{
name: {filter-name},
options: {filter-options},
params: {filter-params},
}
<
They filter items by user input.
Items will be processed in the order you specify here.
Default: []
*ddc-source-option-maxAutoCompleteLength*
maxAutoCompleteLength (number)
Ignored length of keyword for auto completion.
It is useful to edit BASE64 files.
NOTE: It does not work for manual completion.
Default: 80
*ddc-source-option-maxKeywordLength*
maxKeywordLength (number)
The maximum word of length for items.
If it is 0, the feature is disabled.
Default: 0
*ddc-source-option-maxItems*
maxItems (number)
If there are more items than this value, ddc will ignore the
filtering.
Default: 500
*ddc-source-option-maxManualCompleteLength*
maxManualCompleteLength (number)
The mamimum length of keyword required for manual completion.
Default: 80
*ddc-source-option-minAutoCompleteLength*
minAutoCompleteLength (number)
The minimum length of keyword required for auto completion.
NOTE: It does not work for manual completion.
Default: 2
*ddc-source-option-minManualCompleteLength*
minManualCompleteLength (number)
The minimum length of keyword required for manual completion.
Default: 1
*ddc-source-option-minKeywordLength*
minKeywordLength (number)
The minimum word of length for items.
If it is 0, the feature is disabled.
Default: 0
*ddc-source-option-preview*
preview (boolean)
If it is False, ddc disables preview feature.
Default: v:true
*ddc-source-option-replaceSourceInputPattern*
replaceSourceInputPattern
It defines the regexp pattern to remove a match in the source
input text.
It is useful when if you use non-forward-matching filter
algorithms (e.g., fuzzy matching).
NOTE: It is JavaScript regexp.
NOTE: "\k" is not converted.
Default: ''
*ddc-source-option-sorters*
sorters (string[])
It is a list of elements like |ddc-source-option-matchers|.
They sort items.
Items will be processed in the order you specify here.
Default: []
*ddc-source-option-timeout*
timeout (number)
The |ddc-source-attribute-gather| timeout for completion.
Default: 2000
------------------------------------------------------------------------------
SOURCE PARAMS *ddc-source-params*
These are the parameters that each source can have. You can select the
behavior and tune the performance.
Please read the source documentation.
==============================================================================
FILTERS *ddc-filters*
Once items have been supplied by one or more sources, they are passed through
the filters, which are matchers, converters or sorters. Sources can have
specific filters.
matchers: To filter items by user input
sorters: To sort items
converters: To change items attributes
Call order is matchers -> sorters -> converters
NOTE: The filters are not bundled in ddc.vim. You need to install them
to use ddc.vim. Please search them by https://github.com/topics/ddc-filter
NOTE: The default matchers/sorters/converters are empty. You need to
configure them to use ddc.
The filters must put under "denops/@ddc-filters/*.ts".
NOTE: The name is named by file name.
------------------------------------------------------------------------------
FILTER OPTIONS *ddc-filter-options*
Undefined now
------------------------------------------------------------------------------
FILTER PARAMS *ddc-filter-params*
These are the parameters that each filter can have. You can select the
behavior and tune the performance.
Please read the filter documentation.
==============================================================================
TYPES *ddc-types*
Please see the TypeScript definition.
https://jsr.io/@shougo/ddc-vim@6.0.0/doc
==============================================================================
CREATE UI *ddc-create-ui*
To create UI, you should read other UIs implementation.
Source class must extend "BaseUI" class.
NOTE: The sources must be written in TypeScript language.
NOTE: If you call Vim functions, it is not asynchronous.
------------------------------------------------------------------------------
UI ATTRIBUTES *ddc-ui-attributes*
*ddc-ui-attribute-hide*
hide (function) (Required)
Called to hide UI.
*ddc-ui-attribute-show*
show (function) (Required)
Called to show UI.
*ddc-source-ui-skipCompletion*
skipCompletion (function) (Optional)
Called to skip current completion.
It returns True, to skip completion.
*ddc-ui-attribute-onInit*
onInit (function) (Optional)
Called before call UI functions.
*ddc-ui-attribute-params*
params (function) (Required)
Called to get UI params.
*ddc-ui-attribute-visible*
visible (function) (Optional)
Called to check current UI is visible.
==============================================================================
CREATE SOURCE *ddc-create-source*
To create source, you should read other sources implementation.
Source class must extend "BaseSource" class.
NOTE: The sources must be written in TypeScript language.
NOTE: If you call Vim functions, it is not asynchronous.
------------------------------------------------------------------------------
SOURCE ATTRIBUTES *ddc-source-attributes*
*ddc-source-attribute-events*
events (string[]) (Optional)
List of events for which |ddc-source-attribute-onEvent|
should get called.
NOTE: Supported events is described in |ddc-events|.
Default: []
*ddc-source-attribute-isBytePos*
isBytePos (boolean) (Optional)
If |ddc-source-attribute-getCompletePosition| returns byte
position, it must be true.
It is useful to use Vim script function.
Default: false
*ddc-source-attribute-gather*
gather (function) (Required)
Called to gather items.
The function must return items list or below dictionary.
>
{
items: Item[],
isIncomplete: boolean,
}
<
If "isIncomplete" is set, the items can be replaced by
|ddc#update_items()|.
*ddc-source-attribute-getCompletePosition*
getCompletePosition (function) (Optional)
Called to get the position of the current completion.
Default : |ddc-source-option-keywordPattern| is used.