mirror of
https://github.com/overleaf/overleaf.git
synced 2024-12-25 05:31:03 +00:00
104 lines
2.5 KiB
CoffeeScript
104 lines
2.5 KiB
CoffeeScript
define [
|
|
"auto-complete/commands"
|
|
], (commands) ->
|
|
class Parser
|
|
constructor: (@doc) ->
|
|
|
|
parse: () ->
|
|
commands = []
|
|
seen = {}
|
|
while command = @nextCommand()
|
|
docState = @doc
|
|
|
|
optionalArgs = 0
|
|
while @consumeArgument("[", "]")
|
|
optionalArgs++
|
|
|
|
args = 0
|
|
while @consumeArgument("{", "}")
|
|
args++
|
|
|
|
commandHash = "#{command}\\#{optionalArgs}\\#{args}"
|
|
if !seen[commandHash]?
|
|
seen[commandHash] = true
|
|
commands.push [command, optionalArgs, args]
|
|
|
|
# Reset to before argument to handle nested commands
|
|
@doc = docState
|
|
|
|
return commands
|
|
|
|
# Ignore single letter commands since auto complete is moot then.
|
|
commandRegex: /\\([a-zA-Z][a-zA-Z]+)/
|
|
|
|
nextCommand: () ->
|
|
i = @doc.search(@commandRegex)
|
|
if i == -1
|
|
return false
|
|
else
|
|
match = @doc.match(@commandRegex)[1]
|
|
@doc = @doc.substr(i + match.length + 1)
|
|
return match
|
|
|
|
consumeWhitespace: () ->
|
|
match = @doc.match(/^[ \t\n]*/m)[0]
|
|
@doc = @doc.substr(match.length)
|
|
|
|
consumeArgument: (openingBracket, closingBracket) ->
|
|
@consumeWhitespace()
|
|
|
|
if @doc[0] == openingBracket
|
|
i = 1
|
|
bracketParity = 1
|
|
while bracketParity > 0 and i < @doc.length
|
|
if @doc[i] == openingBracket
|
|
bracketParity++
|
|
else if @doc[i] == closingBracket
|
|
bracketParity--
|
|
i++
|
|
|
|
if bracketParity == 0
|
|
@doc = @doc.substr(i)
|
|
return true
|
|
else
|
|
return false
|
|
else
|
|
return false
|
|
|
|
class SuggestionManager
|
|
constructor: () ->
|
|
@commands = []
|
|
|
|
loadCommandsFromDoc: (doc) ->
|
|
parser = new Parser(doc)
|
|
@commands = parser.parse()
|
|
|
|
getSuggestions: (commandFragment) ->
|
|
matchingCommands = _.filter @commands, (command) ->
|
|
command[0].slice(0, commandFragment.length) == commandFragment
|
|
|
|
return _.map matchingCommands, (command) ->
|
|
base = "\\" + commandFragment
|
|
|
|
args = ""
|
|
_.times command[1], () -> args = args + "[]"
|
|
_.times command[2], () -> args = args + "{}"
|
|
completionBase = command[0].slice(commandFragment.length)
|
|
|
|
squareArgsNo = command[1]
|
|
curlyArgsNo = command[2]
|
|
totalArgs = squareArgsNo + curlyArgsNo
|
|
if totalArgs == 0
|
|
completionBeforeCursor = completionBase
|
|
completionAfterCurspr = ""
|
|
else
|
|
completionBeforeCursor = completionBase + args[0]
|
|
completionAfterCursor = args.slice(1)
|
|
|
|
return {
|
|
base: base,
|
|
completion: completionBase + args,
|
|
completionBeforeCursor: completionBeforeCursor
|
|
completionAfterCursor: completionAfterCursor
|
|
}
|
|
|