=begin Created By :: Akash Pal Date :: 06/08/2018. Time :: 11:30 Copyright© by Akash Pal The code also has eror handling. Try to remove the semicolon at the end of statement. do any calculation with the variables. 1. You cant give a value to variable without declaration. 2. A value cant be given before declaration of variable 3. Error handling. 4. You can add as many empty line you want to. 5. Can put any number of spaces after the semicolon. 6.Can take The user input Example str = 'svar a; a = 5; print a;' Hope You all like my simple Interpreter. Example Source Code (Free To Edit) svar a; a = 44; svar b; b = 31; svar str; str = "Hello"; print str; print a + b; svar c; c = 5; svar d; d = 50; print c + b; =end $/ = "END" user_input = STDIN.gets str= user_input stri = str.split("\n") stre = stri - [""] al = stre.length for i in 0...al stre[i] = stre[i].rstrip stre[i] = stre[i].lstrip end sci = Array.new scb = true for i in 0...al if stre[i].end_with?(";") scb = true else scb = false sci << i + 1 break end end if scb == false puts "Syntax error : expected ';' at the end of line #{sci}" exit() end for i in 0...al stre[i] = stre[i].chomp(";") end indexArray = Array.new ssA= Array.new stsvar = Array.new for i in 0...al if stre[i].include?"svar" stsvar << stre[i] indexArray << i end end for i in 0...al ssA << stre[i].split(" ") end sa = Array.new for i in 0...stsvar.length sa << stsvar[i].split(" ") end ca = Array.new for i in 0...sa.length ca << sa[i][1] end eq = Array.new indexArrray = Array.new for i in 0...al if stre[i].include?"=" eq << stre[i] indexArrray << i end end eqi = eq.length eqd = Array.new for i in 0...eqi eqd << eq[i].split(" ") end cdel = Array.new for i in 0...eqi cdel << eqd[i][0] end strindexArray = Array.new strindexArrray = Array.new for i in 0...al if ssA[i].include?"svar" strindexArray << ssA[i][-1] end end for i in 0...al if ssA[i].include?"=" strindexArrray << ssA[i][0] end end chms = true cant = cdel-ca if (cdel-ca).length > 0 puts " This variable #{cant} is not declaced in the code. Please see." exit() end sia = strindexArray.length for i in 0...sia for j in 0...sia if strindexArray[i] == strindexArrray[j] if indexArray[i] < indexArrray[i] chms = true elsif indexArray[i] > indexArrray[i] chms = false characterx = strindexArray[i] break end end end end if chms == false puts "Variable #{characterx} is given value before it is declared." exit() end st = Array.new for i in 0...al if stre[i].start_with?("svar") st << stre[i] end end ar = stre - st arl = ar.length ark = ar.join("\n") map = {'print' => 'puts', '/' => '.to_f/'} map.each {|k,v| ark.gsub!(k,v)} eval(ark)

[CONTEST] DeCode Custom Interpreter v2.3