bin/extract_r_code.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 27,
   "metadata": {},
   "outputs": [],
   "source": [
    "# https://www.programiz.com/python-programming/regex\n",
    "\n",
    "import re"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# File content"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'\\n~~~\\ndds\\n~~~\\n{: .language-r}\\n\\n\\n\\n~~~\\nlibrary(DESeq2, quietly = TRUE)\\nlibrary(tidyverse)\\n~~~\\n{: .language-r}\\n\\n'"
      ]
     },
     "execution_count": 28,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "with open('hello.txt') as filin:\n",
    "    f_content = filin.read()\n",
    "f_content"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Method 1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['dds\\n']\n"
     ]
    }
   ],
   "source": [
    "result = re.findall(r'~~~\\n(\\w*\\s\\w*)~~~\\n{: .language-r}', f_content)\n",
    "print(result)    "
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Method 2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "metadata": {},
   "outputs": [],
   "source": [
    "pattern = '\\n~~~\\n(\\w*\\s*)\\n\\n~~~\\n{: .language-r}\\n'\n",
    "regex = re.compile(pattern, re.MULTILINE)\n",
    "for match in regex.finditer(f_content):\n",
    "        print(match.group(0))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "re.compile(r'^(.+)\\n((?:\\n.+)+)', re.MULTILINE|re.UNICODE)"
      ]
     },
     "execution_count": 38,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "re.compile(r\"^(.+)\\n((?:\\n.+)+)\", re.MULTILINE)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.7.6"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}