nvim-conv

Conv is a simple converter that allows you to convert:

• numbers from a base to another
• sequences of bytes to a string and viceversa
• values from one unit to another one (temperature, metric and imperial units, data transfer rate)
• colors between hex, rgb, hsl

Installation

Install using your favorite plugin manager:

• NeoBundle

  NeoBundle 'simonefranza/nvim-conv'

• packer.nvim:

  use {'simonefranza/nvim-conv'}

• vim-plug:

  Plug 'simonefranza/nvim-conv'

• Vundle

  Plugin 'simonefranza/nvim-conv'

Usage

The format to input numbers with different bases is the same as in the C language:

• decimal: simply the number
• hexadecimal: leading 0x
• octal: leading 0
• binary: leading 0b

This means that the number 45 has to be input as 0b101101 for binary, 0x2d (or 0x2D) for hexadecimal and 055 for octal.

Base conversion

Conversion from octal, hex and binary to decimal

:ConvDec 0x2d
0x2d = 45

Conversion from decimal, hex and binary to octal

:ConvOct 0x2d
0x2d = 055

Conversion from decimal, octal and binary to hexadecimal

:ConvHex 45
045 = 0x2D

Conversion from decimal, hexadecimal and octal to binary

:ConvBin 45
45 = 0b101101

Also with negative numbers (the number of bits is extended to the next multiple of 4)

:ConvBin -3
-3 = 0b1101

Bytes to string

Convert a sequence of bytes to a string

:ConvStr 6e76696d2d636f6e76
6e76696d2d636f6e76 = nvim-conv

Even with spaces out bytes

:ConvStr 6e 76 69 6d 2d 63 6f 6e 76
6e 76 69 6d 2d 63 6f 6e 76 = nvim-conv

String to bytes

Convert any string to a sequence of bytes

:ConvBytes This plugin is amazing!
This plugin is amazing! = 0x5468697320706C7567696E20697320616D617A696E6721

Celsius to Farenheit

The input may be in decimal, hex, binary or octal base:

:ConvFarenheit 0b1100100
0b1100100 = 100.00°C = 212.00°F 
:ConvFarenheit 0xff
0xff = 255.00°C = 491.00°F
:ConvFarenheit -40
-40 = -40.00°C = -40.00°F

Farenheit to Celsius

The input may be in decimal, hex, binary or octal base:

:ConvCelsius -135
-135 = -135.00°F = -92.78°C
:ConvCelsius 0xad2
0xad2 = 2770.00°F = 1521.11°C
0xff = 255.00°C = 491.00°F

Data Transfer Rates

Use :ConvDataTransRate <value> <fromUnit> <toUnit> to perform a conversion between data transfer rates.

The supported rates are:

Bits per second
Bps, Kbps, Mbps, Gbps, Tbps
Bytes per second
B/s, KB/s, MB/s, GB/s, TB/s

All the units are case insensitive. The units that specify bits per second can also be defined as MBit/s (in the case of Mbps). The units that specify bytes per second can omit the '/', so MBs (or mbs) will be interpreted as MB/s.

:ConvDataTransRate 10 MBit/s KB/s
10 Mbps (MBit/s) = 1250.00 KB/s
:ConvDataTransRate 10.5 mbs kbps
10.50 MB/s = 84000.00 Kbps (KBit/s)

Metric - Imperial units

Use :ConvMetricImperial <value> <fromUnit> <toUnit> to perform a conversion from a metric unit to an imperial one.

The conversion can also be metric to metric (km to m for example) or imperial to imperial (mile to feet). For a list of available units see below.

:ConvMetricImperial 10 km ft 
10.00 km = 32808.40 ft
:ConvMetricImperial 1.52 meters cm
1.52 m = 152.00 cm
:ConvMetricImperial 1 foot inches
1.00 ft = 12.00 inch

Unit names

The units can be entered in a shortened fashion as mentioned below or by their full name or even with the plural form.

Some examples of corresponding units:

km, kilometer, kilometers = km
mi, mile, miles = mi

Feet and inches can also be represented as ' and " respectively.

Available Units

Length units:

Metric System
km, hm, dam, m, dm, cm, mm, um (micrometer), nm
Imperial System
nmi, mi, yd, ft (or '), in (or ")

Weight units:

Metric System
kg, hg, dag, g, dg, cg, mg, ug, ng
Imperial System
lb, oz

Color Conversion

Enter a color in hex (#DCABA3), rgb (rgb(220,171,163)) or hsl (hsl(9, 45%, 75%)) to get the conversion in the other two formats. Additionally a small square representing the color will be printed at the end of the conversion.

You can input only the values leaving out everything else (#, commas, parentheses, 'rgb', 'hsl') and if possible the format will be automatically inferred. If this is not possible (for example '10 30 90' could be a valid hex, rgb and hsl format) then it defaults to rgb.

:ConvColor hsl 9 45 75
hsl 9 45 75 = #DCABA3 = rgb(220, 171, 163)
:ConvColor 9 45 75
The format of the color, cannot be inferred, so rgb is assumed. 
Add "#" (hex) or "hsl" in front if you whish to use another format.
9 45 75 (inferred rgb) = #092D4B = hsl(207, 78.6%, 16.5%)
:ConvColor aaaaff
aaaaff (inferred hex) = rgb(170, 170, 255) = hsl(240, 100.0%, 83.3%)
:ConvColor 3db
3db (inferred hex) = rgb(51, 221, 187) = hsl(168, 71.4%, 53.3%

Note: see the demo below to see how the colored square looks like.

Additional features

Floating point precision

By default the conversion always prints 2 decimal digits, if you wish to change it on the fly you can execute:

:ConvSetPrecision 4

to get 4 decimal digits in the current session. This value is reset to 2 when you restart vim.

If you wish to make a permanent change, add the following at the end of your .vimrc (or init.vim):

let g:conv_precision = 4

Or this if you are using init.lua:

vim.g.conv_precision = 4

Suggested mappings

Add these to your init.vim (or .vimrc or init.lua) for some fast conversion:

nnoremap <Leader>cd :<C-u>ConvDec<Space>
nnoremap <Leader>ch :<C-u>ConvHex<Space>
nnoremap <Leader>co :<C-u>ConvOct<Space>
nnoremap <Leader>cb :<C-u>ConvBin<Space>
nnoremap <Leader>cs :<C-u>ConvStr<Space>
nnoremap <Leader>ct :<C-u>ConvBytes<Space>

Upcoming features

• Base64
• URL encoding
• nvim-cmp source or inplace conversion

Add new conversions

If there is a conversion that you often use and you would like to have it in neovim, please open a new issue.

License

Copyright (c) Simone Franza. Conv is distributed under MIT License.