45 lines
1.2 KiB
Lua
45 lines
1.2 KiB
Lua
-- local names = {}
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local setters = {
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}
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local getters = {
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}
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local value_values = token.values'value'
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for i=0,#value_values do
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value_values[value_values[i]] = i
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end
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function tex.gettextdir() return tex.textdirection end
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function tex.getlinedir() return tex.linedirection end
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function tex.getmathdir() return tex.mathdirection end
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function tex.getpardir() return tex.pardirection end
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-- local integer_code = value_values.none
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local integer_code = value_values.integer
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local functions = lua.get_functions_table()
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local lua_call_cmd = token.command_id'lua_call'
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local function set_xdir(id, scanning)
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-- local name = names[id]
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if scanning then
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return integer_code, getters[id]()
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-- return integer_code, tex[name .. 'ection']
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end
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local value
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if token.scan_keyword'tlt' then
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value = 0
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elseif token.scan_keyword'trt' then
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value = 1
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else
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value = token.scan_int()
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end
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setters[id](value)
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-- tex["set" .. name](value)
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end
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return function(name)
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local getter = tex["get" .. name]
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local setter = tex["set" .. name]
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assert(getter and setter, "direction parameter undefined")
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local idx = token.luacmd(name, set_xdir, "protected", "global", "value")
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-- names[idx] = name
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getters[idx] = getter
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setters[idx] = setter
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return idx
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end
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