fn: lua
[contents]

Contents

Syntax

The syntax for lua calls is:

f++:   
lua{options}(file-path)
lua{options}
{
	-- block of Lua code
}

n++:   
@lua{options}(file-path)
@lua{options}
{
	-- block of Lua code
}

Description

The lua function is for running Lua code, it takes zero parameters with the call followed by a block of Lua code otherwise a single parameter that should be a file-path to Lua code to run. See here for more information about Lua.

Options

The following options are available for lua calls:

option description
!o do not return result
o return result
pb parse block with language call is made from before running code with Lua
option description

f++ example

Examples of lua being used with f++: 

  1. lua
  2. {
  3. 	local vips = require "vips"
  4.  
  5. 	local image = vips.Image.new_from_file("logo.png")
  6. 	image:resize(0.5):webpsave("logo.webp")
  7. }

n++ example

Example of lua being used with n++: 

  1. @lua
  2. {
  3. 	local vips = require "vips"
  4.  
  5. 	local image = vips.Image.new_from_file("logo.png")
  6. 	image:resize(0.5):webpsave("logo.webp")
  7. }