20301357_sec2_Assignment1_cse420.ipynb

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     "text": [
      "keywords:\n",
      "int,float,if,else\n",
      "\n",
      "Identifiers:\n",
      "a,b,c,d,e\n",
      "\n",
      "Math Operators:\n",
      "=, -, +\n",
      "\n",
      "Logical Operators:\n",
      ">\n",
      "\n",
      "Numerical Values:\n",
      "5, 6, 2.0, 6.0\n",
      "\n",
      "Others:\n",
      ", ; ( ) { }\n"
     ]
    }
   ],
   "source": [
    "a=open(\"input.txt\",\"r\")\n",
    "new=a.read().split()\n",
    "keywords=[\"int\", \"double\", \"float\", \"if\", \"else\", \"while\", \"do\", \"break\", \"and\", \"continue\", \"return\", \"char\", \"sizeof\", \"elif\", \"import\", \"global\", \"void\", \"static\", \"struct\", \"lambda\"]\n",
    "math_operators=['+', '-', '=','*','/']\n",
    "logical_operators=['>','<','>=']\n",
    "numerical_values=['0','1','2','3','4','5','6','7','8','9']\n",
    "others=[',',';','(',')','{','}']\n",
    "k=[]\n",
    "m=[]\n",
    "l=[]\n",
    "n=[]\n",
    "o=[]\n",
    "identifier=[]\n",
    "for i in range(len(new)):\n",
    "    if new[i] in keywords and new[i] not in k:\n",
    "        k.append(new[i])\n",
    "        \n",
    "        \n",
    "    else:\n",
    "        val=\"\"\n",
    "        for j in new[i]:\n",
    "            if j in others:\n",
    "                if j not in o:\n",
    "                    o.append(j)\n",
    "                if val.isnumeric() or \".\" in val:\n",
    "                    n.append(val)\n",
    "                elif val in keywords and val not in k:\n",
    "                    k.append(val)\n",
    "\n",
    "                else:\n",
    "                    if val !='' and val not in identifier:\n",
    "                        identifier.append(val)\n",
    "                val=\"\"\n",
    "            elif j in math_operators:\n",
    "                if j not in m:\n",
    "                    m.append(j)\n",
    "                if val.isnumeric() or \".\" in val:\n",
    "                    n.append(val)\n",
    "                elif val in keywords and val not in k:\n",
    "                    k.append(val)\n",
    "\n",
    "                else:\n",
    "                    if val !='' and val not in identifier:\n",
    "                        identifier.append(val)\n",
    "                val=\"\"\n",
    "            elif j in logical_operators:\n",
    "                if j not in l:\n",
    "                    l.append(j)\n",
    "                if val.isnumeric() or \".\" in val:\n",
    "                    n.append(val)\n",
    "                elif val in keywords and val not in k:\n",
    "                    k.append(val)\n",
    "\n",
    "                else:\n",
    "                    if val !='' and val not in identifier:\n",
    "                        identifier.append(val)\n",
    "                val=\"\"\n",
    "            elif j in numerical_values or j.isalpha() or j=='.':\n",
    "                val+=j\n",
    "                \n",
    "\n",
    "        if val.isnumeric() or \".\" in val:\n",
    "            n.append(val)\n",
    "        elif val in keywords and val not in k:\n",
    "            k.append(val)\n",
    "        elif val in others and val not in o:\n",
    "            o.append(val)\n",
    "            \n",
    "        else:\n",
    "            if val !='' and val not in identifier:\n",
    "                identifier.append(val)\n",
    "        \n",
    "\n",
    "print('keywords:')\n",
    "print(*k,sep=\",\")  \n",
    "print('\\nIdentifiers:')\n",
    "print(*identifier,sep=\",\")\n",
    "print('\\nMath Operators:')\n",
    "print(*m,sep=\", \")\n",
    "print('\\nLogical Operators:')\n",
    "print(*l,sep=\",\")       \n",
    "print('\\nNumerical Values:')\n",
    "print(*n,sep=\", \")       \n",
    "print('\\nOthers:')\n",
    "print(*o,sep=\" \")"
   ]
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