dmajda

/*
 * Simple Intentation-Based Language PEG.js Grammar
 * ================================================
 *
 * Describes a simple indentation-based language. A program in this language is
 * a possibly empty list of the following statements:
 *
 *   * S (simple)
 *
 *     Consists of the letter "S".

dmajda

This Gist contains files reproducing a bug in `pytest-asyncio` that appears
when testing an aiohttp application. The bug is a regression. The last good
version is 0.12.0, the first bad version is 0.14.0 (it looks like there is no
0.13.0).

Without the bug:

```console
$ pip3 install -r requirements-0.12.0.txt
$ pytest > pytest-output-0.12.0.txt

dmajda

Content =
  (Element / Text)*

Element =
  startTag:StartTag content:Content endTag:EndTag {
    if (startTag != endTag) {
      throw new Error(
        "Expected </" + startTag + "> but </" + endTag + "> found."
      );
    }

dmajda

/*
 * Task: Parse even numbers in PEG.js (http://pegjs.majda.cz).
 *
 * Solution: Let's parse all numbers and reject odd ones using a semantic
 * predicate -- an arbitrary piece of code that returns true (meaning "continue
 * parsing") or false (meaning "halt parsing").
 *
 * This solution wouldn't work before commit a2af1fe612 because predicates
 * didn't have access to labeled expressions in the grammar as variables
 * (without ugly workarounds). But they have the access now and the solution

dmajda

$ sqlite3 History                                                                                                                                         1 ↵
SQLite version 3.8.10.2 2015-05-20 18:17:19
Enter ".help" for usage hints.
sqlite> SELECT COUNT(*) FROM urls WHERE url LIKE 'https://%';
20231
sqlite> SELECT COUNT(*) FROM urls;
29485
sqlite> SELECT 20231 / 29485.0;  -- `.0` forces float division
0.6861454977107

dmajda

#!/bin/sh

# A script I used as a sanity check that PEG.js works with a particular version
# of Node.js.
#
# Example usage:
#
#   nvm use 6.3.1 && PEGJS_DIR=../pegjs ./sanity-check.sh
#

dmajda

#!/bin/sh

# Script to reproduce https://github.com/pegjs/pegjs/issues/434.
#
# Copy into an empty directory and run:
#
#   $ sh 434.sh

mkdir src
mkdir lib

dmajda

Call
  = id:ID params:Params+ {
      var result = {
            type: "var",
            name: id
          };

      for (var i = 0; i < params.length; i++) {
        result = {
          type:   "call",

dmajda

inuit ~ » free
             total       used       free     shared    buffers     cached
Mem:       8178344    2183072    5995272          0     116532     621840
-/+ buffers/cache:    1444700    6733644
Swap:     15999996          0   15999996

dmajda

 def check_classes
   # Get list of all subclasses of Scanny::Checks::Check.
   classes = []
   ObjectSpace.each_object(Class) do |klass|
     classes << klass if klass < Scanny::Checks::Check
   end

   # Filter out classes that are a superclass of some other class in the list.
   # This way only "leaf" classes remain.
   classes.reject do |klass|