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/*
	sh`emulator` (shell emulator)
	by Josh Junon
	Dual license: MIT License OR public domain

	const [code, out, err] = await sh
		`cat ${process.argv[2]}`
		`wc -w`
		`rev`
		`tee /tmp/rev-word-count.txt`

Qix-

I mostly move fast and break things, thinking differently while also not being evil. I am like an android - some call me Mr Robot - turning java and hot pockets into pure, event driven, asynchronous, reactive code - all of which is blazing fast and only three bytes gzipped. With my ninja-like skills I bootstrap unicorns like a rock star, synergizing and weaving machine code together like Our Holy Richard Stallman (peace be upon him), optimizing and streamlining integrations into cohesive and rich user experiences. I conjure magical inCANTATIONs on my DUAL ERGONOMIC MECHANICAL KEYBOARDS, WITH CUSTOM LISP CONFIGURATIONS FOR MANIFESTING MY WORD INTO REALITY LIKE PROPHETS TO THEIR SCRIBES. THE ͜OC͞ÉA̛N̶S ҉OF B̛ITS͝ FLO͡W̧I͜N͠G͜ ̨ON ́TH̶E B͜U͜S ́LI͠NES, ͢Q͝UI̛VÉR̡ING A̷S  ͡THO͘U̢ǴH̸ D͠E͝NIAL̀ AT͏ TH̕E G͟AT͝E̴S ̛ǪF ̸VALG̵R̢I͜ND͝ I͝S IM̴M̶I͟NENT̛.̢ I pity the recruiter THAT LAYETH EYES ON MY CODE PATHS. LIKE A SERAPHIM ꙮ AND̕ ̛ITS ͡WATC̨HPOI̷N͠T͠Ś (̨̡͙̰̪̱̝̬̯ẖ͚̱͔̘̟e̸͔͔̱̖̰̻͙̺̕ ̸̱̼͉̼̗̖̞͜͝ͅc͉͉̪͙͎̕ò̰̭̻̻̩̗̕m̢̝̟͢͠e͟

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# Self-contained example for writing to stdout and to a file.
#
# Relies only on the standard assembler module (std.asm), which
# cannot be stubbed out here (as they are intrinsics). std.asm
# allows direct, architecture-specific emission of machine code
# instructions and access to registers.
#
# Also relies on the @platform, @arch, @effect, and @force_inline
# intrinsics, which cannot be (reasonably) stubbed out here.
#

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C/C++ Order of Includes

The order in which I group my header includes is as follows. Each section is separated by exactly one blank line, even if the section only has one include.

1. "" Internal headers
2. "" Internal generated headers (e.g. from version.h.in; okay to use from include path)
3. "" Internal third-party headers (vendored into project)
4. "" Private API headers (always relative paths)
5. "" Public API headers
6. <> Build-system level third party headers (e.g. from CMake's add_subdirectory(); always from include path)

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// Thank you to the folks at the C++ slack channel,
// along with @lewissbaker for the excellent literature
// (even though it took me a few days to be convinced
// it really was so).

#include <uv.h>

#include <iostream>
#include <experimental/coroutine>

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/*
	I couldn't find a good example of a simplistic, *working*
	program using coroutines without a bunch of dependencies
	or bloat. Further, most of the code examples didn't work
	or missed some detail.
	
	As of this writing, this is a working example in Clang 12.

	Public domain.
	Written with the help of https://blog.panicsoftware.com/your-first-coroutine/.

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meta:
  id: aseprite
  endian: le
  file-extension:
    - aseprite
    - ase
seq:
  - id: header
    type: header
  - id: frames

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const std = @import("std");
const warn = @import("std").debug.warn; // XXX DEBUG
const assert = std.debug.assert;

const c = @cImport({
    @cInclude("uv.h");
});

pub const UVError = error{ E2BIG, EACCES, EADDRINUSE, EADDRNOTAVAIL, EAFNOSUPPORT, EAGAIN, EAI_ADDRFAMILY, EAI_AGAIN, EAI_BADFLAGS, EAI_BADHINTS, EAI_CANCELED, EAI_FAIL, EAI_FAMILY, EAI_MEMORY, EAI_NODATA, EAI_NONAME, EAI_OVERFLOW, EAI_PROTOCOL, EAI_SERVICE, EAI_SOCKTYPE, EALREADY, EBADF, EBUSY, ECANCELED, ECHARSET, ECONNABORTED, ECONNREFUSED, ECONNRESET, EDESTADDRREQ, EEXIST, EFAULT, EFBIG, EHOSTUNREACH, EINTR, EINVAL, EIO, EISCONN, EISDIR, ELOOP, EMFILE, EMSGSIZE, ENAMETOOLONG, ENETDOWN, ENETUNREACH, ENFILE, ENOBUFS, ENODEV, ENOENT, ENOMEM, ENONET, ENOPROTOOPT, ENOSPC, ENOSYS, ENOTCONN, ENOTDIR, ENOTEMPTY, ENOTSOCK, ENOTSUP, EPERM, EPIPE, EPROTO, EPROTONOSUPPORT, EPROTOTYPE, ERANGE, EROFS, ESHUTDOWN, ESPIPE, ESRCH, ETIMEDOUT, ETXTBSY, EXDEV, UNKNOWN, EOF, ENXIO, EMLINK };

Qix-

#include <uv.h>
#include <unistd.h>

extern char *environ[];

static int uv_perror(int r, const char *msg) {
	printf("%s: %s (%s)\n", msg, uv_strerror(r), uv_err_name(r));
	return 1;
}

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/*
	Simple testbed for checking TTY status. Use with the other program if you'd like.
*/
#include <unistd.h>
#include <stdio.h>

static void check(const char *name, int fd) {
	if (isatty(fd)) {
		printf("%s IS a tty: %s\n", name, ttyname(fd));
	} else {