libdot: speed up codec helpers

Annoyingly, using the Array builtins, while more succinct, are not
actually faster than doing the string walk logic ourselves.  String
concatenation vs Array.join appears to be a known thing across the
internet, although I couldn't find Array.split threads.

This also has the advantage of not requiring the input to be of an
Array type exactly.  They now work on typed arrays too.

Bug: 776106
Url: https://stackoverflow.com/questions/7299010
Change-Id: I2d0cd44020f76a4b1c64a7cc4fa51f1e396fc50a
Reviewed-on: https://chromium-review.googlesource.com/c/1391810
Reviewed-by: Vitaliy Shipitsyn <vsh@google.com>
Tested-by: Mike Frysinger <vapier@chromium.org>
2 files changed
tree: 9d73e5a4222838d46d3cc91a94aaf62b768557f1
  1. hterm/
  2. libdot/
  3. nassh/
  4. saltpig/
  5. ssh_client/
  6. wam/
  7. wash/
  8. .clang-format
  9. .eslintrc.js
  10. .gitignore
  11. .pylintrc
  12. Dockerfile
  13. HACK.md
  14. LICENSE
  15. navbar.md
  16. package.json
  17. README.md
README.md

Hello

This repository contains the libdot JavaScript library and some web applications that make use of it.

The official copy of this repository is hosted at https://chromium.googlesource.com/apps/libapps.

There is also a mirror on github at https://github.com/libapps/libapps-mirror. A few subprojects are also extracted out into their own git repo and mirrored. Keep in mind that these mirrors may occasionally be behind the official repository.

All changes must go through the Gerrit code review server on https://chromium-review.googlesource.com. Github pull requests cannot be accepted. Please see the HACK.md document in this directory for the details.

Top level directories

  • libdot/ is a small set of JS libraries initially developed as part of hterm, now available as shared code.

  • hterm/ is a JS library that provides a terminal emulator. It is reasonably fast, reasonably correct, and reasonably portable across browsers.

  • nassh/ is the Secure Shell Chrome App (currently a “v1.5” app, soon to become a “v2” or platform app) that combines hterm with a NaCl build of OpenSSH to provide a PuTTY-like app for Chrome users.

  • ssh_client/ is the NaCl port of OpenSSH. It is used by nassh to create the Secure Shell App.

  • wash/ is a library for cross-origin virtual filesystems, similar to the Plan 9 filesystem. This directory also contains a simple bash-like shell environment for exploring these filesystems. The code in this directory is a work-in-progress.