vrthra

import json
import sys

def test(s):
    print('test:', repr(s))
    if not s: return True
    try:
        json.loads(s)
        print('YES', s)
    except:

vrthra

Comparison of syntax extensions in Markdown flavors

I created a crude comparison of the syntax of the various common Markdown extensions to have a better view on what are the most common extensions and what is the most widely accepted syntax for them. The list of Markdown flavors that I looked at was based on the list found on CommonMark's GitHub Wiki.

Flavor	Superscript	Subscript	Deletion* Strikethrough	Insertion*	Highlight*	Footnote	Task list	Table	Abbr	Deflist	Smart typo	TOC	Math	Math Block	Mermaid
GFM

vrthra

import cStringIO
import sys

class IOCapture(object):
    def __init__(self, stdout = True, stderr = True):
        self.captured_stdout = None
        self.captured_stderr = None
        if stdout:
            self.captured_stdout = cStringIO.StringIO()
        if stderr:

vrthra

My links

• Home page of Dhara
• mark it down
• A Survival Guide to a PhD
• Upcoming Conferences
• Software Engineering (4612) CORE A/A* Conferences
• Security (4604) CORE A/A* Conferences

vrthra

import string
import itertools
class Grammar:
    def __init__(self, g, s):
        self.grammar = g
        self.start = s

    def remove_empty_rule_keys(self):
        while True:
            keys_to_delete = []

vrthra

import random
# 5 20 26 33 35 37 62 74 95 98
#random.seed(98)

class NT:
    def __init__(self):
        self.children = []
        self.depth = 0

    def __str__(self):

vrthra

# ---
# published: true
# title: Importing Python Modules
# layout: post
# comments: true
# tags: python
# categories: post
# ---

# In the [previous post](/post/2018/09/06/peg-parsing/) I discussed how to

vrthra

import functools
import inspect
 
def fix_params(func):
    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        original_defaults = func.__defaults__
        new_defaults = []
        for val in func.__defaults__:
            if val == []:

vrthra

grammar = {
    '<start>': [['<expr>']],
    '<expr>': [ ['<term>', '+', '<expr>'], ['<term>', '-', '<expr>'], ['<term>']],
    '<term>': [ ['<fact>', '*', '<term>'], ['<fact>', '/', '<term>'], ['<fact>']],
    '<fact>': [ ['<digits>'], ['(','<expr>',')']],
    '<digits>': [ ['<digit>','<digits>'], ['<digit>']],
    '<digit>': [["%s" % str(i)] for i in range(10)],
}

vrthra

2
>>> 
| vim a.py

class X:
    def __init__(self, a,b,c):
        self.a, self.b, self.c = a,b,c

    def get_a(self):
        return self.a