coc1961 / goregexp

goregexp

Calculate the regular expression based on a list of fixed width numbers

example

$> cat test/data.txt 

509000
509001
509002
509004
509005
509006
509007
..more 934 numbers..

$> cat test/data.txt | goregexp

^(50670[7-8]|50671[5,8-9]|50672[0-1,4-9]|50673[0-3,9]|50674[1-3,5-7]|
506753|50677[4-8]|50900[0-2,4-7,9]|50901[0-2,4]|50902[0-9]|50903[0,5-9]
|50904[0-2,4-9]|50905[0-9]|50906[0-4,6-9]|50907[0-2,4-9]|50908[0-9]|
50909[1-2,5-9]|50910[0-1,6-9]|5091[1-9][0-9]|509[2-7][0-9][0-9]|50980
[0-7]|50983[1-9]|5098[4-6][0-9]|50987[0-7]|50989[7-9]|509900|50991[8-9]
|5099[2-5][0-9]|50996[0-4]|50997[1-9]|50998[0-6]|50999[5-9])$

see data.txt in the test folder