S13-Words-for-the-Future-notebooks/pdf-html2print/md-html-pdf.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Markdown - HTML - print"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import pypandoc\n",
    "from weasyprint import HTML, CSS\n",
    "from weasyprint.fonts import FontConfiguration"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Markdown → HTML"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Pandoc: \"If you need to convert files from one markup format into another, **pandoc is your swiss-army knife**.\"\n",
    "\n",
    "https://pandoc.org/\n",
    "\n",
    "The Python library for Pandoc:\n",
    "\n",
    "https://github.com/bebraw/pypandoc \n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Convert a Markdown file to HTML ...\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "# ... directly from a file\n",
    "html = pypandoc.convert_file('language.md', 'html')\n",
    "print(html)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# ... or from a pad\n",
    "\n",
    "from urllib.request import urlopen\n",
    "\n",
    "url = 'https://pad.xpub.nl/p/language/export/txt'\n",
    "response = urlopen(url)\n",
    "md = response.read().decode('UTF-8')\n",
    "\n",
    "with open('language.md', 'w') as f:\n",
    "    f.write(md)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "html = pypandoc.convert_file('language.md', 'html')\n",
    "print(html)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## HTML → PDF"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "for this we can use Weasyprint again"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "html = HTML(string=html)\n",
    "print(html)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "css = CSS(string='''\n",
    "@page{\n",
    "        size: A4;\n",
    "        margin: 15mm;\n",
    "    \n",
    "        counter-increment: page;\n",
    "        \n",
    "        @top-left{\n",
    "            content: \"hello?\";\n",
    "        }\n",
    "        @top-center{\n",
    "            content: counter(page);\n",
    "            font-size: 7pt;\n",
    "            font-family: monospace;\n",
    "            color: blue;\n",
    "        }\n",
    "        @bottom-center{\n",
    "            content: \"this is the bottom center!\";\n",
    "        }\n",
    "    }\n",
    "    \n",
    "    body{\n",
    "        color: magenta;\n",
    "    }\n",
    "''')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "It's actually interesting and useful to have a close look at paged media properties in CSS: \n",
    "\n",
    "https://developer.mozilla.org/en-US/docs/Web/CSS/%40page/size"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "html.write_pdf('language.pdf', stylesheets=[css])"
   ]
  },
  {
   "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": "3.7.3"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}