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Ⅰ. 插件描述

A calculator inside Vim

Ⅱ. 基本信息

创建日期：  2013-06-24 使用用户：  40 Github星：  121 插件作者：  Ryan Carney

Ⅲ. 安装方法

使用Vundle管理器安装

在你的.vimrc下添加:

Plugin 'arecarn/crunch'

… 然后在Vim中运行以下命令:

:source %
:PluginInstall

对于Vundle版本 < 0.10.2，请用上面的Bundle替换Plugin。

使用NeoBundle管理器安装

在你的.vimrc下添加:

NeoBundle 'arecarn/crunch'

… 然后在Vim中运行以下命令:

:source %
:NeoBundleInstall

使用VimPlug管理器安装

在你的.vimrc下添加:

Plug 'arecarn/crunch'

… 然后在Vim中运行以下命令:

:source %
:PlugInstall

使用Pathogen管理器安装

在终端中运行以下命令:

cd ~/.vim/bundle
git clone https://github.com/arecarn/crunch.vim

Ⅳ. 文档说明

crunch

crunch makes calculations in Vim more accessible by providing an operator to
evaluate mathematical expressions, loosening Vim's math syntax, and forcing
integers into floating point numbers.

Usage

Mode	Key Mapping	Description
normal	g={motion}	Evaluate the text that {motion} moves over
normal	g==	Evaluate the current line
visual	g=	Evaluate the highlighted expressions

• :[range]Crunch[!]

  • Evaluates the current visual selection or provided range and adds result
    to the end of the line(s) With the [!] crunch does not append the result

  but replaces the provided range or visual selection with the result this
  behavior can be reversed by setting g:crunch_result_type_append = 0

• :Crunch

  • Provides a prompt in the command for you to enter your mathematical

    1. The result is then available to be pasted from the default
       register.

• :Crunch {expression}

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

Requirements

• selection.vim
• Vim compiled with +float feature

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Math With 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) = 1.682942	2*sin(1) = 1.682942
	sin(1)2 = 1.682942	sin(1)*2 = 1.682942
	(23)(32) = 36	(23)(3*2) = 36
	2(3*2) = 12	2(32) = 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