Module:Split

Documentation for Module:Split Jump to code ↴ [ edit | purge ]

This module provides a more efficient way than mw.text.split() to split strings in Lua.

Usage

split( string, pattern, plain )

Example

local p = {}
local split = require( 'Module:Split' )

function p.main()
  split( '1/2/3/4', '/' ) --> { '1', '2', '3', '4' }
end

return p

Tests

Y All tests passed.

	Name	Expected	Actual
Y	test_pattern_split
Y	test_split
Y	test_split_plain

local checkType = require( 'libraryUtil' ).checkType


return function ( str, pattern, plain )
  checkType( 'split', 1, str, 'string' )
  checkType( 'split', 2, pattern, 'string' )
  checkType( 'split', 3, plain, 'boolean', true )
  
  local i, out = 1, {}
  local split_start, split_end = string.find( str, pattern, i, ( plain or false ) )
  while split_start do
    out[#out + 1] = string.sub( str, i, split_start - 1 )
    i = split_end + 1
    split_start, split_end = string.find( str, pattern, i, ( plain or false ) )
  end
  out[#out + 1] = string.sub( str, i )

  return out
end