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parse.js
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#!/usr/bin/env node
// Usage: node parse.js
//
// Script that creates index.html out of web/template.html and README.md.
//
// It is written in JS because this code used to be executed on the client side.
// To install the Node.js and npm run:
// $ sudo apt install nodejs npm # On macOS use `brew install ...` instead.
//
// To install dependencies globally, run:
// $ npm install -g jsdom jquery showdown [email protected]
//
// If running on macOS and modules can't be found after installation add:
// export NODE_PATH=/usr/local/lib/node_modules
// to the ~/.bash_profile or ~/.bashrc file and run '$ bash'.
//
// To avoid problems with permissions and path variables, install modules
// into project's directory using:
// $ npm install jsdom jquery showdown [email protected]
//
// It is also advisable to add a Bash script into .git/hooks directory, that will
// run this script before every commit. It should be named 'pre-commit' and it
// should contain the following line: `./parse.js`.
const fs = require('fs');
const jsdom = require('jsdom');
const showdown = require('showdown');
const hljs = require('highlightjs');
const TOC =
'<br>' +
'<h2 id="toc">Contents</h2>\n' +
'<pre><code class="hljs bash" style="line-height: 1.3em;"><strong>ToC</strong> = {\n' +
' <strong><span class="hljs-string">\'1. Collections\'</span></strong>: [<a href="#list">List</a>, <a href="#dictionary">Dictionary</a>, <a href="#set">Set</a>, <a href="#tuple">Tuple</a>, <a href="#range">Range</a>, <a href="#enumerate">Enumerate</a>, <a href="#iterator">Iterator</a>, <a href="#generator">Generator</a>],\n' +
' <strong><span class="hljs-string">\'2. Types\'</span></strong>: [<a href="#type">Type</a>, <a href="#string">String</a>, <a href="#regex">Regular_Exp</a>, <a href="#format">Format</a>, <a href="#numbers">Numbers</a>, <a href="#combinatorics">Combinatorics</a>, <a href="#datetime">Datetime</a>],\n' +
' <strong><span class="hljs-string">\'3. Syntax\'</span></strong>: [<a href="#arguments">Args</a>, <a href="#inline">Inline</a>, <a href="#imports">Imports</a>, <a href="#decorator">Decorator</a>, <a href="#class">Class</a>, <a href="#ducktypes">Duck_Type</a>, <a href="#enum">Enum</a>, <a href="#exceptions">Exception</a>],\n' +
' <strong><span class="hljs-string">\'4. System\'</span></strong>: [<a href="#exit">Exit</a>, <a href="#print">Print</a>, <a href="#input">Input</a>, <a href="#commandlinearguments">Command_Line_Arguments</a>, <a href="#open">Open</a>, <a href="#paths">Path</a>, <a href="#oscommands">OS_Commands</a>],\n' +
' <strong><span class="hljs-string">\'5. Data\'</span></strong>: [<a href="#json">JSON</a>, <a href="#pickle">Pickle</a>, <a href="#csv">CSV</a>, <a href="#sqlite">SQLite</a>, <a href="#bytes">Bytes</a>, <a href="#struct">Struct</a>, <a href="#array">Array</a>, <a href="#memoryview">Memory_View</a>, <a href="#deque">Deque</a>],\n' +
' <strong><span class="hljs-string">\'6. Advanced\'</span></strong>: [<a href="#threading">Threading</a>, <a href="#operator">Operator</a>, <a href="#introspection">Introspection</a>, <a href="#metaprogramming">Metaprograming</a>, <a href="#eval">Eval</a>, <a href="#coroutines">Coroutine</a>],\n' +
' <strong><span class="hljs-string">\'7. Libraries\'</span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>, <a href="#curses">Curses</a>, <a href="#logging">Logging</a>, <a href="#scraping">Scraping</a>, <a href="#web">Web</a>, <a href="#profiling">Profile</a>,\n' +
' <a href="#numpy">NumPy</a>, <a href="#image">Image</a>, <a href="#audio">Audio</a>, <a href="#pygame">Games</a>, <a href="#pandas">Data</a>]\n' +
'}\n' +
'</code></pre>\n';
const LRU_CACHE =
'<span class="hljs-keyword">from</span> functools <span class="hljs-keyword">import</span> lru_cache\n' +
'\n' +
'<span class="hljs-meta">@lru_cache(maxsize=None)</span>\n' +
'<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">fib</span><span class="hljs-params">(n)</span>:</span>\n' +
' <span class="hljs-keyword">return</span> n <span class="hljs-keyword">if</span> n < <span class="hljs-number">2</span> <span class="hljs-keyword">else</span> fib(n-<span class="hljs-number">2</span>) + fib(n-<span class="hljs-number">1</span>)\n';
const CONSTRUCTOR_OVERLOADING =
'<span class="hljs-class"><span class="hljs-keyword">class</span> <<span class="hljs-title">name</span>>:</span>\n' +
' <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__init__</span><span class="hljs-params">(self, a=<span class="hljs-keyword">None</span>)</span>:</span>\n' +
' self.a = a\n';
const DATACLASS =
'<span class="hljs-keyword">from</span> dataclasses <span class="hljs-keyword">import</span> make_dataclass\n' +
'<class> = make_dataclass(<span class="hljs-string">\'<class_name>\'</span>, <coll_of_attribute_names>)\n' +
'<class> = make_dataclass(<span class="hljs-string">\'<class_name>\'</span>, <coll_of_tuples>)\n' +
'<tuple> = (<span class="hljs-string">\'<attr_name>\'</span>, <type> [, <default_value>])';
const SHUTIL_COPY =
'shutil.copy(from, to) <span class="hljs-comment"># Copies the file. \'to\' can exist or be a dir.</span>\n' +
'shutil.copytree(from, to) <span class="hljs-comment"># Copies the directory. \'to\' must not exist.</span>\n';
const OS_RENAME =
'os.rename(from, to) <span class="hljs-comment"># Renames/moves the file or directory.</span>\n' +
'os.replace(from, to) <span class="hljs-comment"># Same, but overwrites \'to\' if it exists.</span>\n';
const TYPE =
'<class> = type(<span class="hljs-string">\'<class_name>\'</span>, <tuple_of_parents>, <dict_of_class_attributes>)';
const EVAL =
'<span class="hljs-meta">>>> </span><span class="hljs-keyword">from</span> ast <span class="hljs-keyword">import</span> literal_eval\n' +
'<span class="hljs-meta">>>> </span>literal_eval(<span class="hljs-string">\'[1, 2, 3]\'</span>)\n' +
'[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>]\n' +
'<span class="hljs-meta">>>> </span>literal_eval(<span class="hljs-string">\'1 + 2\'</span>)\n' +
'ValueError: malformed node or string\n';
const PROGRESS_BAR =
'<span class="hljs-comment"># $ pip3 install tqdm</span>\n' +
'<span class="hljs-meta">>>> </span><span class="hljs-keyword">from</span> tqdm <span class="hljs-keyword">import</span> tqdm\n' +
'<span class="hljs-meta">>>> </span><span class="hljs-keyword">from</span> time <span class="hljs-keyword">import</span> sleep\n' +
'<span class="hljs-meta">>>> </span><span class="hljs-keyword">for</span> el <span class="hljs-keyword">in</span> tqdm([<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>], desc=<span class="hljs-string">\'Processing\'</span>):\n' +
'<span class="hljs-meta">... </span> sleep(<span class="hljs-number">1</span>)\n' +
'Processing: 100%|████████████████████| 3/3 [00:03<00:00, 1.00s/it]\n';
const PYINSTALLER =
'$ pip3 install pyinstaller\n' +
'$ pyinstaller script.py <span class="hljs-comment"># Compiles into \'./dist/script\' directory.</span>\n' +
'$ pyinstaller script.py --onefile <span class="hljs-comment"># Compiles into \'./dist/script\' console app.</span>\n' +
'$ pyinstaller script.py --windowed <span class="hljs-comment"># Compiles into \'./dist/script\' windowed app.</span>\n' +
'$ pyinstaller script.py --add-data \'<path>:.\' <span class="hljs-comment"># Adds file to the root of the executable.</span>\n';
const INDEX =
'<li><strong>Only available in the <a href="https://transactions.sendowl.com/products/78175486/4422834F/view">PDF</a>.</strong></li>\n' +
'<li><strong>Ctrl+F / ⌘F is usually sufficient.</strong></li>\n' +
'<li><strong>Searching <code class="python hljs"><span class="hljs-string">\'#<title>\'</span></code> will limit the search to the titles.</strong></li>\n';
const DIAGRAM_1_A =
'+------------------+------------+------------+------------+\n' +
'| | Sequence | Collection | Iterable |\n' +
'+------------------+------------+------------+------------+\n';
const DIAGRAM_1_B =
'┏━━━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┓\n' +
'┃ │ Sequence │ Collection │ Iterable ┃\n' +
'┠──────────────────┼────────────┼────────────┼────────────┨\n' +
'┃ list, range, str │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ dict, set │ │ ✓ │ ✓ ┃\n' +
'┃ iter │ │ │ ✓ ┃\n' +
'┗━━━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━┛\n';
const DIAGRAM_2_A =
'+--------------------+----------+----------+----------+----------+----------+\n' +
'| | Integral | Rational | Real | Complex | Number |\n' +
'+--------------------+----------+----------+----------+----------+----------+\n';
const DIAGRAM_2_B =
'┏━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┓\n' +
'┃ │ Integral │ Rational │ Real │ Complex │ Number ┃\n' +
'┠────────────────────┼──────────┼──────────┼──────────┼──────────┼──────────┨\n' +
'┃ int │ ✓ │ ✓ │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ fractions.Fraction │ │ ✓ │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ float │ │ │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ complex │ │ │ │ ✓ │ ✓ ┃\n' +
'┃ decimal.Decimal │ │ │ │ │ ✓ ┃\n' +
'┗━━━━━━━━━━━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┛\n';
const DIAGRAM_3_A =
'+---------------+----------+----------+----------+----------+----------+\n';
const DIAGRAM_3_B =
'┏━━━━━━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━━┓\n' +
'┃ │ [ !#$%…] │ [a-zA-Z] │ [¼½¾] │ [²³¹] │ [0-9] ┃\n' +
'┠───────────────┼──────────┼──────────┼──────────┼──────────┼──────────┨\n' +
'┃ isprintable() │ ✓ │ ✓ │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ isalnum() │ │ ✓ │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ isnumeric() │ │ │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ isdigit() │ │ │ │ ✓ │ ✓ ┃\n' +
'┃ isdecimal() │ │ │ │ │ ✓ ┃\n' +
'┗━━━━━━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━━┛\n';
const DIAGRAM_4_A =
"+--------------+----------------+----------------+----------------+----------------+\n" +
"| | {<float>} | {<float>:f} | {<float>:e} | {<float>:%} |\n" +
"+--------------+----------------+----------------+----------------+----------------+\n";
const DIAGRAM_4_B =
"┏━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┓\n" +
"┃ │ {<float>} │ {<float>:f} │ {<float>:e} │ {<float>:%} ┃\n" +
"┠──────────────┼────────────────┼────────────────┼────────────────┼────────────────┨\n" +
"┃ 0.000056789 │ '5.6789e-05' │ '0.000057' │ '5.678900e-05' │ '0.005679%' ┃\n" +
"┃ 0.00056789 │ '0.00056789' │ '0.000568' │ '5.678900e-04' │ '0.056789%' ┃\n" +
"┃ 0.0056789 │ '0.0056789' │ '0.005679' │ '5.678900e-03' │ '0.567890%' ┃\n" +
"┃ 0.056789 │ '0.056789' │ '0.056789' │ '5.678900e-02' │ '5.678900%' ┃\n" +
"┃ 0.56789 │ '0.56789' │ '0.567890' │ '5.678900e-01' │ '56.789000%' ┃\n" +
"┃ 5.6789 │ '5.6789' │ '5.678900' │ '5.678900e+00' │ '567.890000%' ┃\n" +
"┃ 56.789 │ '56.789' │ '56.789000' │ '5.678900e+01' │ '5678.900000%' ┃\n" +
"┗━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┛\n";
const DIAGRAM_5_A =
"+--------------+----------------+----------------+----------------+----------------+\n" +
"| | {<float>:.2} | {<float>:.2f} | {<float>:.2e} | {<float>:.2%} |\n" +
"+--------------+----------------+----------------+----------------+----------------+\n";
const DIAGRAM_5_B =
"┏━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━┓\n" +
"┃ │ {<float>:.2} │ {<float>:.2f} │ {<float>:.2e} │ {<float>:.2%} ┃\n" +
"┠──────────────┼────────────────┼────────────────┼────────────────┼────────────────┨\n" +
"┃ 0.000056789 │ '5.7e-05' │ '0.00' │ '5.68e-05' │ '0.01%' ┃\n" +
"┃ 0.00056789 │ '0.00057' │ '0.00' │ '5.68e-04' │ '0.06%' ┃\n" +
"┃ 0.0056789 │ '0.0057' │ '0.01' │ '5.68e-03' │ '0.57%' ┃\n" +
"┃ 0.056789 │ '0.057' │ '0.06' │ '5.68e-02' │ '5.68%' ┃\n" +
"┃ 0.56789 │ '0.57' │ '0.57' │ '5.68e-01' │ '56.79%' ┃\n" +
"┃ 5.6789 │ '5.7' │ '5.68' │ '5.68e+00' │ '567.89%' ┃\n" +
"┃ 56.789 │ '5.7e+01' │ '56.79' │ '5.68e+01' │ '5678.90%' ┃\n" +
"┗━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━┛\n";
const DIAGRAM_6_A =
'+------------+------------+------------+------------+--------------+\n' +
'| | Iterable | Collection | Sequence | abc.Sequence |\n' +
'+------------+------------+------------+------------+--------------+\n';
const DIAGRAM_6_B =
'┏━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━━━┓\n' +
'┃ │ Iterable │ Collection │ Sequence │ abc.Sequence ┃\n' +
'┠────────────┼────────────┼────────────┼────────────┼──────────────┨\n' +
'┃ iter() │ ! │ ! │ ✓ │ ✓ ┃\n' +
'┃ contains() │ ✓ │ ✓ │ ✓ │ ✓ ┃\n' +
'┃ len() │ │ ! │ ! │ ! ┃\n' +
'┃ getitem() │ │ │ ! │ ! ┃\n' +
'┃ reversed() │ │ │ ✓ │ ✓ ┃\n' +
'┃ index() │ │ │ │ ✓ ┃\n' +
'┃ count() │ │ │ │ ✓ ┃\n' +
'┗━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━━━┛\n';
const DIAGRAM_7_A =
'BaseException\n' +
' +-- SystemExit';
const DIAGRAM_7_B =
"BaseException\n" +
" ├── SystemExit <span class='hljs-comment'># Raised by the sys.exit() function.</span>\n" +
" ├── KeyboardInterrupt <span class='hljs-comment'># Raised when the user hits the interrupt key (ctrl-c).</span>\n" +
" └── Exception <span class='hljs-comment'># User-defined exceptions should be derived from this class.</span>\n" +
" ├── ArithmeticError <span class='hljs-comment'># Base class for arithmetic errors.</span>\n" +
" │ └── ZeroDivisionError <span class='hljs-comment'># Raised when dividing by zero.</span>\n" +
" ├── AttributeError <span class='hljs-comment'># Raised when an attribute is missing.</span>\n" +
" ├── EOFError <span class='hljs-comment'># Raised by input() when it hits end-of-file condition.</span>\n" +
" ├── LookupError <span class='hljs-comment'># Raised when a look-up on a collection fails.</span>\n" +
" │ ├── IndexError <span class='hljs-comment'># Raised when a sequence index is out of range.</span>\n" +
" │ └── KeyError <span class='hljs-comment'># Raised when a dictionary key or set element is not found.</span>\n" +
" ├── NameError <span class='hljs-comment'># Raised when a variable name is not found.</span>\n" +
" ├── OSError <span class='hljs-comment'># Errors such as “file not found” or “disk full” (see Open).</span>\n" +
" │ └── FileNotFoundError <span class='hljs-comment'># When a file or directory is requested but doesn't exist.</span>\n" +
" ├── RuntimeError <span class='hljs-comment'># Raised by errors that don't fall in other categories.</span>\n" +
" │ └── RecursionError <span class='hljs-comment'># Raised when the maximum recursion depth is exceeded.</span>\n" +
" ├── StopIteration <span class='hljs-comment'># Raised by next() when run on an empty iterator.</span>\n" +
" ├── TypeError <span class='hljs-comment'># Raised when an argument is of wrong type.</span>\n" +
" └── ValueError <span class='hljs-comment'># When an argument is of right type but inappropriate value.</span>\n" +
" └── UnicodeError <span class='hljs-comment'># Raised when encoding/decoding strings to/from bytes fails.</span>\n";
const DIAGRAM_8_A =
'+-----------+------------+------------+------------+\n' +
'| | List | Set | Dict |\n' +
'+-----------+------------+------------+------------+\n';
const DIAGRAM_8_B =
'┏━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┓\n' +
'┃ │ List │ Set │ Dict ┃\n' +
'┠───────────┼────────────┼────────────┼────────────┨\n' +
'┃ getitem() │ IndexError │ │ KeyError ┃\n' +
'┃ pop() │ IndexError │ KeyError │ KeyError ┃\n' +
'┃ remove() │ ValueError │ KeyError │ ┃\n' +
'┃ index() │ ValueError │ │ ┃\n' +
'┗━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━┛\n';
const DIAGRAM_9_A =
'+------------------+--------------+--------------+--------------+\n' +
'| | excel | excel-tab | unix |\n' +
'+------------------+--------------+--------------+--------------+\n';
const DIAGRAM_9_B =
"┏━━━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━┓\n" +
"┃ │ excel │ excel-tab │ unix ┃\n" +
"┠──────────────────┼──────────────┼──────────────┼──────────────┨\n" +
"┃ delimiter │ ',' │ '\\t' │ ',' ┃\n" +
"┃ quotechar │ '\"' │ '\"' │ '\"' ┃\n" +
"┃ doublequote │ True │ True │ True ┃\n" +
"┃ skipinitialspace │ False │ False │ False ┃\n" +
"┃ lineterminator │ '\\r\\n' │ '\\r\\n' │ '\\n' ┃\n" +
"┃ quoting │ 0 │ 0 │ 1 ┃\n" +
"┃ escapechar │ None │ None │ None ┃\n" +
"┗━━━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━┛\n";
const DIAGRAM_10_A =
'+-------------+-------------+\n' +
'| Classes | Metaclasses |\n' +
'+-------------+-------------|\n' +
'| MyClass --> MyMetaClass |\n';
const DIAGRAM_10_B =
'┏━━━━━━━━━━━━━┯━━━━━━━━━━━━━┓\n' +
'┃ Classes │ Metaclasses ┃\n' +
'┠─────────────┼─────────────┨\n' +
'┃ MyClass ──→ MyMetaClass ┃\n' +
'┃ │ ↓ ┃\n' +
'┃ object ─────→ type ←╮ ┃\n' +
'┃ │ ↑ ╰──╯ ┃\n' +
'┃ str ──────────╯ ┃\n' +
'┗━━━━━━━━━━━━━┷━━━━━━━━━━━━━┛\n';
const DIAGRAM_11_A =
'+-------------+-------------+\n' +
'| Classes | Metaclasses |\n' +
'+-------------+-------------|\n' +
'| MyClass | MyMetaClass |\n';
const DIAGRAM_11_B =
'┏━━━━━━━━━━━━━┯━━━━━━━━━━━━━┓\n' +
'┃ Classes │ Metaclasses ┃\n' +
'┠─────────────┼─────────────┨\n' +
'┃ MyClass │ MyMetaClass ┃\n' +
'┃ ↓ │ ↓ ┃\n' +
'┃ object ←───── type ┃\n' +
'┃ ↑ │ ┃\n' +
'┃ str │ ┃\n' +
'┗━━━━━━━━━━━━━┷━━━━━━━━━━━━━┛\n';
const DIAGRAM_12_A =
'+-----------+-------------+------+-------------+\n' +
'| sampwidth | min | zero | max |\n' +
'+-----------+-------------+------+-------------+\n';
const DIAGRAM_12_B =
'┏━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━┯━━━━━━━━━━━━━┓\n' +
'┃ sampwidth │ min │ zero │ max ┃\n' +
'┠───────────┼─────────────┼──────┼─────────────┨\n' +
'┃ 1 │ 0 │ 128 │ 255 ┃\n' +
'┃ 2 │ -32768 │ 0 │ 32767 ┃\n' +
'┃ 3 │ -8388608 │ 0 │ 8388607 ┃\n' +
'┃ 4 │ -2147483648 │ 0 │ 2147483647 ┃\n' +
'┗━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━┷━━━━━━━━━━━━━┛\n';
const DIAGRAM_13_A =
'| sr.apply(…) | 3 | sum 3 | s 3 |';
const DIAGRAM_13_B =
"┏━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━┓\n" +
"┃ │ 'sum' │ ['sum'] │ {'s': 'sum'} ┃\n" +
"┠─────────────┼─────────────┼─────────────┼───────────────┨\n" +
"┃ sr.apply(…) │ 3 │ sum 3 │ s 3 ┃\n" +
"┃ sr.agg(…) │ │ │ ┃\n" +
"┗━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━┛\n";
const DIAGRAM_14_A =
'| sr.apply(…) | | rank | |';
const DIAGRAM_14_B =
"┏━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━┓\n" +
"┃ │ 'rank' │ ['rank'] │ {'r': 'rank'} ┃\n" +
"┠─────────────┼─────────────┼─────────────┼───────────────┨\n" +
"┃ sr.apply(…) │ │ rank │ ┃\n" +
"┃ sr.agg(…) │ x 1 │ x 1 │ r x 1 ┃\n" +
"┃ sr.trans(…) │ y 2 │ y 2 │ y 2 ┃\n" +
"┗━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━┛\n";
const DIAGRAM_15_A =
'+------------------------+---------------+------------+------------+--------------------------+';
const DIAGRAM_15_B =
"┏━━━━━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n" +
"┃ │ 'outer' │ 'inner' │ 'left' │ Description ┃\n" +
"┠────────────────────────┼───────────────┼────────────┼────────────┼──────────────────────────┨\n" +
"┃ l.merge(r, on='y', │ x y z │ x y z │ x y z │ Joins/merges on column. ┃\n" +
"┃ how=…) │ 0 1 2 . │ 3 4 5 │ 1 2 . │ Also accepts left_on and ┃\n" +
"┃ │ 1 3 4 5 │ │ 3 4 5 │ right_on parameters. ┃\n" +
"┃ │ 2 . 6 7 │ │ │ Uses 'inner' by default. ┃\n" +
"┠────────────────────────┼───────────────┼────────────┼────────────┼──────────────────────────┨\n" +
"┃ l.join(r, lsuffix='l', │ x yl yr z │ │ x yl yr z │ Joins/merges on row keys.┃\n" +
"┃ rsuffix='r', │ a 1 2 . . │ x yl yr z │ 1 2 . . │ Uses 'left' by default. ┃\n" +
"┃ how=…) │ b 3 4 4 5 │ 3 4 4 5 │ 3 4 4 5 │ If r is a series, it is ┃\n" +
"┃ │ c . . 6 7 │ │ │ treated as a column. ┃\n" +
"┠────────────────────────┼───────────────┼────────────┼────────────┼──────────────────────────┨\n" +
"┃ pd.concat([l, r], │ x y z │ y │ │ Adds rows at the bottom. ┃\n" +
"┃ axis=0, │ a 1 2 . │ 2 │ │ Uses 'outer' by default. ┃\n" +
"┃ join=…) │ b 3 4 . │ 4 │ │ A series is treated as a ┃\n" +
"┃ │ b . 4 5 │ 4 │ │ column. Use l.append(sr) ┃\n" +
"┃ │ c . 6 7 │ 6 │ │ to add a row instead. ┃\n" +
"┠────────────────────────┼───────────────┼────────────┼────────────┼──────────────────────────┨\n" +
"┃ pd.concat([l, r], │ x y y z │ │ │ Adds columns at the ┃\n" +
"┃ axis=1, │ a 1 2 . . │ x y y z │ │ right end. Uses 'outer' ┃\n" +
"┃ join=…) │ b 3 4 4 5 │ 3 4 4 5 │ │ by default. A series is ┃\n" +
"┃ │ c . . 6 7 │ │ │ treated as a column. ┃\n" +
"┠────────────────────────┼───────────────┼────────────┼────────────┼──────────────────────────┨\n" +
"┃ l.combine_first(r) │ x y z │ │ │ Adds missing rows and ┃\n" +
"┃ │ a 1 2 . │ │ │ columns. Also updates ┃\n" +
"┃ │ b 3 4 5 │ │ │ items that contain NaN. ┃\n" +
"┃ │ c . 6 7 │ │ │ R must be a DataFrame. ┃\n" +
"┗━━━━━━━━━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n";
const DIAGRAM_16_A =
'| df.apply(…) | | x y | |';
const DIAGRAM_16_B =
"┏━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━┓\n" +
"┃ │ 'sum' │ ['sum'] │ {'x': 'sum'} ┃\n" +
"┠─────────────┼─────────────┼─────────────┼───────────────┨\n" +
"┃ df.apply(…) │ │ x y │ ┃\n" +
"┃ df.agg(…) │ x 4 │ sum 4 6 │ x 4 ┃\n" +
"┃ │ y 6 │ │ ┃\n" +
"┗━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━┛\n";
const DIAGRAM_17_A =
'| df.apply(…) | x y | x y | x |';
const DIAGRAM_17_B =
"┏━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━┓\n" +
"┃ │ 'rank' │ ['rank'] │ {'x': 'rank'} ┃\n" +
"┠─────────────┼─────────────┼─────────────┼───────────────┨\n" +
"┃ df.apply(…) │ x y │ x y │ x ┃\n" +
"┃ df.agg(…) │ a 1 1 │ rank rank │ a 1 ┃\n" +
"┃ df.trans(…) │ b 2 2 │ a 1 1 │ b 2 ┃\n" +
"┃ │ │ b 2 2 │ ┃\n" +
"┗━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━┛\n";
const DIAGRAM_18_A =
'| gb.agg(…) | x y | x y | x y | x |';
const DIAGRAM_18_B =
"┏━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━┓\n" +
"┃ │ 'sum' │ 'rank' │ ['rank'] │ {'x': 'rank'} ┃\n" +
"┠─────────────┼─────────────┼─────────────┼─────────────┼───────────────┨\n" +
"┃ gb.agg(…) │ x y │ x y │ x y │ x ┃\n" +
"┃ │ z │ a 1 1 │ rank rank │ a 1 ┃\n" +
"┃ │ 3 1 2 │ b 1 1 │ a 1 1 │ b 1 ┃\n" +
"┃ │ 6 11 13 │ c 2 2 │ b 1 1 │ c 2 ┃\n" +
"┃ │ │ │ c 2 2 │ ┃\n" +
"┠─────────────┼─────────────┼─────────────┼─────────────┼───────────────┨\n" +
"┃ gb.trans(…) │ x y │ x y │ │ ┃\n" +
"┃ │ a 1 2 │ a 1 1 │ │ ┃\n" +
"┃ │ b 11 13 │ b 1 1 │ │ ┃\n" +
"┃ │ c 11 13 │ c 1 1 │ │ ┃\n" +
"┗━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━┛\n";
const MENU = '<a href="https://raw.githubusercontent.com/gto76/python-cheatsheet/main/README.md">Download text file</a>, <a href="https://transactions.sendowl.com/products/78175486/4422834F/view">Buy PDF</a>, <a href="https://github.com/gto76/python-cheatsheet">Fork me on GitHub</a>, <a href="https://github.com/gto76/python-cheatsheet/wiki/Frequently-Asked-Questions">Check out FAQ</a> or <a href="index.html?theme=dark3">Switch to dark theme</a>.\n';
const DARK_THEME_SCRIPT =
'<script>\n' +
' // Changes the image and link to theme if URL ends with "index.html?theme=dark". \n' +
' if (window.location.search.search(/[?&]theme=dark/) !== -1) {\n' +
'\n' +
' var link_to_theme = document.createElement("a")\n' +
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function main() {
const html = getMd();
initDom(html);
modifyPage();
var template = readFile('web/template.html');
template = updateDate(template);
const tokens = template.split('<div id=main_container></div>');
const text = `${tokens[0]} ${document.body.innerHTML} ${tokens[1]}`;
writeToFile('index.html', text);
}
function getMd() {
var readme = readFile('README.md');
var readme = readme.replace("#semaphore-event-barrier", "#semaphoreeventbarrier");
const converter = new showdown.Converter();
return converter.makeHtml(readme);
}
function initDom(html) {
const { JSDOM } = jsdom;
const dom = new JSDOM(html);
const $ = (require('jquery'))(dom.window);
global.$ = $;
global.document = dom.window.document;
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function modifyPage() {
changeMenu();
addDarkThemeScript();
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addToc();
insertLinks();
unindentBanner();
updateDiagrams();
highlightCode();
fixPandasDiagram();
removePlotImages();
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function changeMenu() {
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function updateDiagrams() {
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$(`code:contains(${DIAGRAM_2_A})`).html(DIAGRAM_2_B);
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$(`code:contains(${DIAGRAM_5_A})`).html(DIAGRAM_5_B);
$(`code:contains(${DIAGRAM_6_A})`).html(DIAGRAM_6_B);
$(`code:contains(${DIAGRAM_7_A})`).html(DIAGRAM_7_B);
$(`code:contains(${DIAGRAM_8_A})`).html(DIAGRAM_8_B);
$(`code:contains(${DIAGRAM_9_A})`).html(DIAGRAM_9_B);
$(`code:contains(${DIAGRAM_10_A})`).html(DIAGRAM_10_B);
$(`code:contains(${DIAGRAM_11_A})`).html(DIAGRAM_11_B);
$(`code:contains(${DIAGRAM_12_A})`).html(DIAGRAM_12_B).removeClass("text").removeClass("language-text").addClass("python");
$(`code:contains(${DIAGRAM_13_A})`).html(DIAGRAM_13_B).removeClass("text").removeClass("language-text").addClass("python");
$(`code:contains(${DIAGRAM_14_A})`).html(DIAGRAM_14_B).removeClass("text").removeClass("language-text").addClass("python");
$(`code:contains(${DIAGRAM_15_A})`).html(DIAGRAM_15_B).removeClass("text").removeClass("language-text").addClass("python");
$(`code:contains(${DIAGRAM_16_A})`).html(DIAGRAM_16_B).removeClass("text").removeClass("language-text").addClass("python");
$(`code:contains(${DIAGRAM_17_A})`).html(DIAGRAM_17_B).removeClass("text").removeClass("language-text").addClass("python");
$(`code:contains(${DIAGRAM_18_A})`).html(DIAGRAM_18_B).removeClass("text").removeClass("language-text").addClass("python");
}
function highlightCode() {
setApaches(['<D>', '<T>', '<DT>', '<TD>', '<a>', '<n>']);
$('code').not('.python').not('.text').not('.bash').not('.apache').addClass('python');
$('code').each(function(index) {
hljs.highlightBlock(this);
});
fixClasses();
fixHighlights();
preventPageBreaks();
fixPageBreaksFile();
fixPageBreaksStruct();
insertPageBreaks();
}
function setApaches(elements) {
for (el of elements) {
$(`code:contains(${el})`).addClass('apache');
}
}
function fixClasses() {
// Changes class="hljs-keyword" to class="hljs-title" of 'class' keyword.
$('.hljs-class').filter(':contains(class \')').find(':first-child').removeClass('hljs-keyword').addClass('hljs-title')
}
function fixHighlights() {
$(`code:contains(@lru_cache(maxsize=None))`).html(LRU_CACHE);
$(`code:contains((self, a=None):)`).html(CONSTRUCTOR_OVERLOADING);
$(`code:contains(make_dataclass(\'<class_name>\')`).html(DATACLASS);
$(`code:contains(shutil.copy)`).html(SHUTIL_COPY);
$(`code:contains(os.rename)`).html(OS_RENAME);
$(`code:contains(\'<class_name>\', <tuple_of_parents>, <dict_of_class_attributes>)`).html(TYPE);
$(`code:contains(ValueError: malformed node)`).html(EVAL);
$(`code:contains(pip3 install tqdm)`).html(PROGRESS_BAR);
$(`code:contains(pip3 install pyinstaller)`).html(PYINSTALLER);
$(`ul:contains(Only available in)`).html(INDEX);
}
function preventPageBreaks() {
$(':header').each(function(index) {
var el = $(this)
var untilPre = el.nextUntil('pre')
var untilH2 = el.nextUntil('h2')
if ((untilPre.length < untilH2.length) || el.prop('tagName') === 'H1') {
untilPre.add(el).next().add(el).wrapAll("<div></div>");
} else {
untilH2.add(el).wrapAll("<div></div>");
}
});
}
function fixPageBreaksFile() {
const modesDiv = $('#file').parent().parent().parent()
move(modesDiv, 'file')
move(modesDiv, 'exceptions-1')
}
function fixPageBreaksStruct() {
const formatDiv = $('#floatingpointtypes').parent().parent().parent().parent()
move(formatDiv, 'floatingpointtypes')
move(formatDiv, 'integertypesuseacapitalletterforunsignedtypeminimumandstandardsizesareinbrackets')
move(formatDiv, 'forstandardsizesstartformatstringwith')
}
function move(anchor_el, el_id) {
const el = $('#'+el_id).parent()
anchor_el.after(el)
}
function insertPageBreaks() {
insertPageBreakBefore('#decorator')
// insertPageBreakBefore('#print')
}
function insertPageBreakBefore(an_id) {
$('<div class="pagebreak"></div>').insertBefore($(an_id).parent())
}
function fixPandasDiagram() {
const diagram_15 = '┏━━━━━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━┓';
$(`code:contains(${diagram_15})`).find(".hljs-keyword:contains(and)").after("and");
$(`code:contains(${diagram_15})`).find(".hljs-keyword:contains(as)").after("as");
$(`code:contains(${diagram_15})`).find(".hljs-keyword:contains(is)").after("is");
$(`code:contains(${diagram_15})`).find(".hljs-keyword").remove();
}
function removePlotImages() {
$('img[alt="Covid Deaths"]').remove();
$('img[alt="Covid Cases"]').remove();
}
function updateDate(template) {
const date = new Date();
const date_str = date.toLocaleString('en-us', {month: 'long', day: 'numeric', year: 'numeric'});
template = template.replace('May 20, 2021', date_str);
template = template.replace('May 20, 2021', date_str);
return template;
}
// UTIL
function readFile(filename) {
try {
return fs.readFileSync(filename, 'utf8');
} catch(e) {
console.error('Error:', e.stack);
}
}
function writeToFile(filename, text) {
try {
return fs.writeFileSync(filename, text, 'utf8');
} catch(e) {
console.error('Error:', e.stack);
}
}
main();