https://github.com/vim-utils/vim-troll-stopper

Stop Unicode trolls from messing with your code.
https://github.com/vim-utils/vim-troll-stopper

Last synced: 3 months ago
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Stop Unicode trolls from messing with your code.

• Host: GitHub
• URL: https://github.com/vim-utils/vim-troll-stopper
• Owner: vim-utils
• License: mit
• Created: 2015-10-23T15:58:31.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2022-10-26T20:46:26.000Z (about 2 years ago)
• Last Synced: 2024-05-06T14:35:37.898Z (6 months ago)
• Language: Vim Script
• Homepage:
• Size: 31.3 KB
• Stars: 177
• Watchers: 6
• Forks: 4
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

• Awesome-Unicode - vim-troll-stopper - Stop Unicode trolls from messing with your code. (:collision: Lowercase Transformation Collisions / One-To-Many Case Mappings)

README

        
# vim-troll-stopper

Beware, there are (Unicode) trolls out there! Here, take this plugin for

protection.

#### Problem

There are many Unicode characters that are identical or look very

similar to one another. Best known example: semicolon (;) and a greek question

mark (;).

Trollers (e.g. your coworkers) can exploit this by replacing semicolons with

greek question marks in your code (original idea: Peter Ritchie, @peterritchie).

There are even [tools](https://github.com/reinderien/mimic) that help you with

this and take it to the next level.

Also, any random code snippet from the internet/stackoverlow can be corrupt.

Demo, a [cannonical "hello troll" program](https://github.com/bruno-/hello-trolled):

    ⅰnt ⅿain() { рrintf ("Ηello troll!\n"); }

Copy-paste the above code to `hello.c` file and run `$ make hello`. Part of the

output:

    hello.c:1:1: error: unknown type name 'ⅰnt'

    ⅰnt ⅿain() { рrintf ("Ηello troll!\n"); }

    ^

Maybe you'd even start crying if you didn't know the above code is deceitful.

#### Solution

Vim users should know better than falling for these petty tricks.

This plugin highlights troll characters with a red background so you are alerted

something is not right.

![hello troll program](hello_troll.png)

After you install this plugin, things should just work for any and all

filetypes.

### Installation

Just use your favorite vim plugin manager.

### Features

- change highlight to custom color (in `.vimrc`)

        highlight TrollStopper ctermbg = red guibg = #FF0000

- use the `:TrollStop` command to convert invalid characters to regular ones

### License

[MIT](LICENSE.md)