JSONedit: preprocessor (Lua scripting)

JSONedit 0.9.16 introduced text preprocessing using Lua scripting. This function allows to pass text entered in tree view through Lua before using it. Initially it was intended for tasks that were simple (converting characters to lowercase, removing accidentally entered newlines) yet too specific to add to application itself, but it can potentially do more complex processing like creating text shortcuts that expand to full text with Lua.

JSONedit uses two separate scripts: for node name nad for node value preprocessing. They must be placed in application directory.

Example: InputNamePreprocessor.lua 

inputString = GetInputText()	-- required: read input string
-- print(string.format("inputString = %s\n", inputString))
-- convert to lowercase
outputString = string.lower(inputString)
-- remove newlines
outputString = string.gsub(outputString, "\r", "")
outputString = string.gsub(outputString, "\n", "")
-- print(string.format("outputString = %s\n", outputString))
SetOutputText(outputString)	-- required: set output string

Example: InputValuePreprocessor.lua 

inputString = GetInputText()	-- required: read input string
inputType = GetInputValueType()
if inputType == 3 then	-- combobox type index; 3 = string
	do
		-- print(string.format("inputString = %s\n", inputString))
		-- convert to lowercase
		outputString = string.lower(inputString)
		-- remove newlines
		outputString = string.gsub(outputString, "\r", "")
		outputString = string.gsub(outputString, "\n", "")
	end
else
	do
		outputString = inputString;
	end
end
-- print(string.format("outputString = %s\n", outputString))
SetOutputText(outputString)	-- required: set output string

Example: InputNamePreprocessor.lua - simple text substitution / expanding / autocorrect 

inputString = GetInputText()	-- required: read input string
-- print(string.format("inputString = %s\n", inputString))
-- convert to lowercase
outputString = inputString	-- default value
tmpString = string.lower(inputString)
substitutions =
{
["alin"] = "Abraham Lincoln", 
["abelin"] = "Abraham Lincoln", 
["gwash"] = "George Washington", 
["jada"] = "John Adams", 
["tjef"] = "Thomas Jefferson"
}
if (substitutions[tmpString] ~= nil) then
	outputString = substitutions[tmpString]
end
-- print(string.format("outputString = %s\n", outputString))
SetOutputText(outputString)	-- required: set output string

Note: scripts are reloaded at startup or when settings are applied.