^txt2regex$ walks you through building a regular expression using plain English (or Japanese) and then shows you how to use that regex in some popular languages. Below is my test of making a phone number regex that would match 313-555-1234:
[.]quit [0]reset [*]color ^txt2regex$
[|]or [(]open group
!! not supported
RegEx perl : [0-9]{3}-[0-9]{3}-[0-9]{4}
RegEx php : [0-9]{3}-[0-9]{3}-[0-9]{4}
RegEx postgres: [0-9]{3}-[0-9]{3}-[0-9]{4}
RegEx python : [0-9]{3}-[0-9]{3}-[0-9]{4}
RegEx sed : [0-9]{3}-[0-9]{3}-[0-9]{4}
RegEx vim : [0-9]{3}-[0-9]{3}-[0-9]{4}
txt2regex --history '26521652165�:2�3�-�:2�3�-�:2�4'
start to match in any part of the line, followed by a special combination {numbers}, repeated exactly 3 times, followed by a specific character, repeated one times, followed by a special combination {numbers}, repeated exactly 3 times, followed by a specific character, repeated one times, followed by a special combination {numbers}, repeated exactly 4 times.