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--- State and methods of the language server client.
-- This module table is returned when requiring the vis-lspc plugin.
-- @module lspc
-- @author Florian Fischer
-- @license GPL-3
-- @copyright Florian Fischer 2021-2024
--- Initial state of the client.
-- This includes the default configuration that can be modified in
-- your visrc.lua file.
local lspc = {
-- mapping language server names to their state tables
running = {},
open_files = {},
name = 'vis-lspc',
version = '0.1.8',
-- write log messages to lspc.log_file
logging = false,
log_file = nil,
-- automatically start a language server when a new window is opened
autostart = true,
-- program used to let the user make choices
-- The available choices are passed to <menu_cmd> on stdin separated by '\n'
menu_cmd = 'vis-menu -l 10',
-- program used to ask the user for confirmation
confirm_cmd = 'vis-menu',
-- apply workspaceEdits without confirmation
autoconfirm_edits = false,
-- should diagnostics be highlighted if available
highlight_diagnostics = 'line',
-- style id used by lspc to register the style used to highlight diagnostics
-- by default win.STYLE_LEXER_MAX is used (the last style id available for the lexer styles). See vis/ui.h.
diagnostic_style_id = nil,
-- styles used by lspc to highlight the diagnostic range
-- must be set by the user
diagnostic_styles = {
error = 'fore:red,italics,reverse',
warning = 'fore:yellow,italics,reverse',
information = 'fore:yellow,italics,reverse',
hint = 'fore:yellow,italics,reverse',
},
-- restore the position of the primary curser after applying a workspace edit
workspace_edit_remember_cursor = true,
-- message level to show in the UI when receiving messages from the server
-- Error = 1, Warning = 2, Info = 3, Log = 4
message_level = 3,
-- How to present messages to the user.
-- 'message': use vis:message; 'open': use a new split window allowing for syntax highlighting
show_message = 'message',
-- Globs that are considered to be workspace roots (e.g. ".git" or ".hg")
universal_root_globs = {},
-- Should a file's directory be used as workspace root if no explicit root was found.
fallback_dirname_as_root = false,
-- Format string how the symbols are presented in the navigation window.
-- The following arguments are passed to the string.format function:
-- indentation, symbol kind, name, line, column
navwin_symbol_format = '%s[%.1s] %s\n', -- short version
-- navwin_symbol_format = '%s[%s] %s %d:%d\n', -- verbose version
-- The layout where the navigation window will be placed.
-- The following layout identifiers are supported:
-- 'vr' -- DEFAULT: vertical right
-- 'vl' -- vertical left
-- 'ht' -- horizontal top
-- 'hb' -- horizontak bottom
navwin_layout = 'vr',
-- active navigation windows
navwins = {},
-- events
events = {
LS_INITIALIZED = 'LspcEvent::LS_INITIALIZED',
LS_DID_OPEN = 'LspcEvent::LS_DID_OPEN',
},
}
-- check if fzf is available and use fzf instead of vis-menu per default
if os.execute('type fzf >/dev/null 2>/dev/null') then
lspc.menu_cmd = 'fzf'
end
local supported_markup_kind = {'markdown'}
local goto_methods_capabilities = {
linkSupport = true,
dynamicRegistration = false,
}
--- ClientCapabilities we tell the language server when calling "initialize".
local client_capabilites = {
workspace = {
configuration = true,
didChangeConfiguration = {dynamicRegistration = false},
},
textDocument = {
synchronization = {dynamicRegistration = false, didSave = true},
-- ask the server to send us only markdown completionItems
completion = {
dynamicRegistration = false,
completionItem = {documentationFormat = supported_markup_kind},
},
-- ask the server to send us only markdown hover results
hover = {dynamicRegistration = false, contentFormat = supported_markup_kind},
-- ask the server to send us only markdown signatureHelp results
signatureHelp = {
dynamicRegistration = false,
signatureInformation = {documentationFormat = supported_markup_kind},
},
declaration = {dynamicRegistration = false, linkSupport = true},
definition = goto_methods_capabilities,
publishDiagnostics = {relatedInformation = false},
diagnostic = {dynamicRegistration = false},
typeDefinition = goto_methods_capabilities,
implementation = goto_methods_capabilities,
references = {dynamicRegistration = false},
rename = {
dynamicRegistration = false,
prepareSupport = false,
honorsChangeAnnotations = false,
},
},
window = {workDoneProgress = false, showDocument = {support = false}},
}
lspc.client_capabilites = client_capabilites
local Lspc = {}
--- Log a message.
-- @string: the message to log
function Lspc:log(msg)
self.logger:log(msg)
end
--- Present a warning to the user.
-- @string: the warning message
function Lspc:warn(msg)
local warning = 'LSPC Warning: ' .. msg
self.logger:log(warning)
vis:info(warning)
end
--- Present an error to the user.
-- @string: the error message
function Lspc:err(msg)
local warning = 'LSPC Error: ' .. msg
self.logger:log(warning)
vis:info(warning)
end
setmetatable(lspc, {__index = Lspc})
return lspc
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