{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "6aa5fb66",
   "metadata": {},
   "outputs": [],
   "source": [
    "import os\n",
    "import requests"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "445679f5",
   "metadata": {},
   "outputs": [],
   "source": [
    "def convert_txt_to_jsonl(base_url, domain):\n",
    "    \n",
    "    urls = {\n",
    "        \"train\": f\"{base_url}/{domain}/train.txt\",\n",
    "        \"validation\": f\"{base_url}/{domain}/dev.txt\",\n",
    "        \"test\": f\"{base_url}/{domain}/test.txt\",\n",
    "    }\n",
    "\n",
    "    os.makedirs(domain, exist_ok=True)\n",
    "\n",
    "    for split, url in urls.items():\n",
    "        text = requests.get(url).text.strip().splitlines()\n",
    "        samples, tokens, tags = [], [], []\n",
    "        guid = 0\n",
    "\n",
    "        for line in text:\n",
    "            if not line.strip():\n",
    "                if tokens:\n",
    "                    samples.append({\"id\": str(guid), \"tokens\": tokens, \"ner_tags\": tags})\n",
    "                    guid += 1\n",
    "                    tokens, tags = [], []\n",
    "            else:\n",
    "                token, tag = line.split(\"\\t\")\n",
    "                tokens.append(token)\n",
    "                tags.append(tag)\n",
    "        \n",
    "        if tokens:\n",
    "            samples.append({\"id\": str(guid), \"tokens\": tokens, \"ner_tags\": tags})\n",
    "\n",
    "        with open(f\"{domain}/{split}.json\", \"w\", encoding=\"utf-8\") as f:\n",
    "            for s in samples:\n",
    "                f.write(f\"{s}\\n\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "739fc387",
   "metadata": {},
   "outputs": [],
   "source": [
    "domains = [\"conll2003\", \"politics\", \"science\", \"music\", \"literature\", \"ai\"]\n",
    "base_url = \"https://raw.githubusercontent.com/zliucr/CrossNER/main/ner_data\"\n",
    "\n",
    "for domain in domains:\n",
    "    convert_txt_to_jsonl(domain)"
   ]
  }
 ],
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