74 lines
1.9 KiB
Lua
74 lines
1.9 KiB
Lua
local expect = dofile("rom/modules/main/cc/expect.lua").expect
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local sPath = "/rom/help"
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function path()
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return sPath
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end
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function setPath( _sPath )
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expect(1, _sPath, "string")
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sPath = _sPath
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end
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function lookup( _sTopic )
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expect(1, _sTopic, "string")
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-- Look on the path variable
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for sPath in string.gmatch(sPath, "[^:]+") do
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sPath = fs.combine( sPath, _sTopic )
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if fs.exists( sPath ) and not fs.isDir( sPath ) then
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return sPath
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elseif fs.exists( sPath..".txt" ) and not fs.isDir( sPath..".txt" ) then
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return sPath..".txt"
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end
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end
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-- Not found
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return nil
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end
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function topics()
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-- Add index
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local tItems = {
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[ "index" ] = true
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}
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-- Add topics from the path
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for sPath in string.gmatch(sPath, "[^:]+") do
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if fs.isDir( sPath ) then
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local tList = fs.list( sPath )
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for _,sFile in pairs( tList ) do
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if string.sub( sFile, 1, 1 ) ~= "." then
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if not fs.isDir( fs.combine( sPath, sFile ) ) then
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if #sFile > 4 and sFile:sub(-4) == ".txt" then
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sFile = sFile:sub(1,-5)
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end
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tItems[ sFile ] = true
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end
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end
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end
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end
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end
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-- Sort and return
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local tItemList = {}
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for sItem in pairs( tItems ) do
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table.insert( tItemList, sItem )
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end
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table.sort( tItemList )
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return tItemList
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end
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function completeTopic( sText )
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expect(1, sText, "string")
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local tTopics = topics()
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local tResults = {}
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for n=1,#tTopics do
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local sTopic = tTopics[n]
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if #sTopic > #sText and string.sub( sTopic, 1, #sText ) == sText then
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table.insert( tResults, string.sub( sTopic, #sText + 1 ) )
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end
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end
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return tResults
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end
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