method execution (fileName : string) (outText : Widget.text Widget.widget) : unit = (
let out_name_if = get_output_if fileName in
let out_name_ta4sp = (temp_dir^(Filename.basename fileName)^".ta4sp") in
let error_if_file = (out_name_if^".error") in
let error_ta4sp_file = (out_name_ta4sp^".error") in
if(Sys.file_exists out_name_if) then ignore(Sys.remove out_name_if);
if(Sys.file_exists out_name_ta4sp) then ignore(Sys.remove out_name_ta4sp);
if(Sys.file_exists error_if_file) then ignore(Sys.remove error_if_file);
if(Sys.file_exists error_ta4sp_file) then ignore(Sys.remove error_ta4sp_file);
let select = match (Textvariable.get tv)
with "1" -> ""
| "2" -> (if (Entry.get levelEntry)="" then " --level=1 " else (" --level="^(Entry.get levelEntry)))
| _ -> "" in
ignore(Sys.command(hlpsl2if^" --stdout "^esc^fileName^esc^" >"^out_name_if^" 2>"^error_if_file^" ; "^ta4sp^" "^out_name_if^" "^agentString^select^" > "^out_name_ta4sp^" 2>"^error_ta4sp_file));
Text.delete outText ~start:(`Linechar(0, 0),[`Linestart]) ~stop:(`End,[]);
if(Sys.file_exists out_name_ta4sp) then (
let txt = readFile out_name_ta4sp in
if(txt<>"")
then(
let (out_error, num_of_lines) = readFile_and_give_line_number error_if_file in
let warning= (if(num_of_lines >2) then ("\n----- Output error of if translator :\n\n"^out_error^"\n--------------- \n") else "") in
Text.insert ~index:(`End,[]) ~text:(warning^txt) outText
)
else(
if(Sys.file_exists error_if_file)
then Text.insert ~index:(`End,[]) ~text:(("\n----- Output error of if translator :\n\n")^(readFile error_if_file)) outText;
if(Sys.file_exists error_ta4sp_file)
then Text.insert ~index:(`End,[]) ~text:(("\n\n\n----- Output error of TA4SP :\n\n")^(readFile error_ta4sp_file)) outText;
);
);
if(Sys.file_exists out_name_if) then ignore(Sys.remove out_name_if);
if(Sys.file_exists out_name_ta4sp) then ignore(Sys.remove out_name_ta4sp);
if(Sys.file_exists error_if_file) then ignore(Sys.remove error_if_file);
if(Sys.file_exists error_ta4sp_file) then ignore(Sys.remove error_ta4sp_file);
)