#Crunch

###An easier way to perform calculations inside Vim

##Overview

Crunch makes calculations in Vim more accessible and loosens Vim's math syntax. Most of Crunch's looser syntax is accomplished by extensive search and replace. Crunch also forces floating point to be used.

Requirements: Vim compiled with +float feature.

Crunch allows you to just type in mathematical expressions without having to worry about the syntax as much.

##Usage

• :Crunch <args>

  Where is some mathematical expression to be evaluated. The result is then available to be pasted from the default register.

• :Crunch

  Crunch then gives you the following prompt in the command line: Calc >> for you to enter you mathematical expression. The result is then available to be pasted from the default register.

• :CrunchLine, :'<'>CrunchLine, or <leader>cl

  Crunch Uses the current line or the visually selected lines as the expression(s) and adds the result to the end of the line(s). When the expression(s) changes using :CrunchLine again will reevaluate the line(s)

• :CrunchBlock, or <leader>cb

  Crunch Uses the current paragraph (block of text starting and ending with an empty line) as the expressions and adds the result to the end of the lines. When a expressions in a paragraph changes using :CrunchBlock again will reevaluate them

##Demos

Crunch works from the command line for quick off hand calculations. The result of these calculations are then available to be pasted.

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Variables can be used to save expressions so they can be used later.

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Multiple lines can be evaluated/reevaluated , with visual selections. Optionally single lines can be evaluated/reevaluated.

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Crunch ignores Comments, by removing them evaluating lines then putting them back in. The ignored comments are variable based file type using the conmmentstring variable. Crunch also always ignores a leading or following // and *

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Paragraphs can be evaluated using the :CrunchBlock command or the default mapping <leader>cb

##Looser Syntax

The following chart shows the looser math syntax provided with Crunch, compared to the default math syntax.

Feature	With Crunch	Without Crunch
Implied Multiplication
	cos(0)cos(0) = 1	cos(0)*cos(0) = 1.0
	2sin(1) = 11.682942	2*sin(1) = 1.682942
	sin(1)2 = 1.682942	sin(1)*2 = 1.682942
	(2*3)(3*2) = 36	(2*3)*(3*2) = 36
	2(3*2) = 12	2*(3*2) = 12
Integer to Float Conversion
	1/2 = 0.5	1.0/2.0 = 0.5
	.25*4 = 1	0.25*4 = 1.0
Decimals w/o Leading Zeros
	.5/2 = 0.25	0.5/2 = 0.25
	.25*4 = 1	0.25*4 = 1.0
Removed Zeros In Result
	0.25*4 = 1	0.25*4 = 1.0
	pow(2,8) = 256	pow(2,8)= 256.0

##Installation If you don't have an preferred method, I recommend one of the following plugin managers.

• Neobundle
• Vundle
• pathogen
• VAM

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Make Crunch Better

I'm pretty new to Vim Script so any tips are appreciated. Think you can make Crunch better? Fork it on GitHub and send a pull request. If you find bugs, want new functionality contact me by making an issue on GitHub and I'll see what I can do.

###Credits Sources inspiration and credits for this plugin

• http://patorjk.com/ ASCII font courtesy of Patrick Gillespie

• https://github.com/gregsexton/VimCalc Greg Sexton Wrote Vimcalc

• http://vimrc-dissection.blogspot.com/2011/01/vim-inline-calculator-revisited.html Ihar Filipau wrote most of the tagging code as well as VIM incline calculator

• https://github.com/hrsh7th/vim-neco-calc hrsh7th wrote Neco-calc, and inspired the int to float conversion method