-- micromode.lua introduces Sciboo-style 'micro-modes' to SciTE.
-- For instance, if your C file begins like this:
-- // build@ gcc fred.c alice.o -o fred
-- then that will set the property command.build.* to 'gcc fred.c alice.o -o fred'.
-- build,compile and go are valid here; otherwise, the name is assumed to be a global Lua 
-- function. that will handle this build operation
-- If the command ends with a single '*', it will be replaced with $(FileNameExt)
-- If the command is a valid global Lua function, it will be used instead. So:
--  --go@ dofile *
-- will mean that a Lua script is to be run using SciTE Lua.

local propset = {}

local function check_micro_mode(f)
	if #propset > 0 then -- very important to keep clearing these guys out!
		for i,k in ipairs(propset) do
			props[k] = nil			
		end
		propset = {}
	end
	local line =  scite_Line(editor,0)
	if not line then return end
	local _,_,p,val = line:find('([a-z]+)@%s+(.+)')
	if _ then
        local custom_build, lua_function
        if p ~= 'build' and p ~= 'compile' and p ~= 'go' then
            custom_build = p
            p = 'build'            
        end
		local prop = 'command.'..p..'.*'
		if val:sub(1,1) == '$' then -- might have been a property expansion!
			val = val:sub(3,-2)
			val = props[val]
		end
		if val == "" then return end
		if val:find('%*$') then
			val = val:sub(1,-2) .. '$(FileNameExt)'
		end
		local cmd = val:match('([%w_]+)')
		lua_function = cmd and _G[cmd]
        if not custom_build and not lua_function then
            props[prop] = val
        else
			local subsys
			-- a Lua function; use the 3 subsystem to evaluate it!
			if custom_build then
				props[prop] = custom_build..' '..val
				subsys = 'command.build.subsystem.*'
			else
				props[prop] = val
				subsys = 'command.go.subsystem.*'
			end            
            props[subsys] = '3'
            table.insert(propset,subsys)
        end
        table.insert(propset,prop)
	end
end

scite_OnOpenSwitch(check_micro_mode)
scite_OnSave(check_micro_mode)