package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?i)(\w{2}).*?(\1)`)
var str = `This is a repeated repeated word.zz zz zz
How would you find pairs of letters that occur twice in a string using regex with Python?
I want to iterate through a list of strings, find the ones that have repeating pairs of letters, and put them into a list. The letters don't need to be the same, the pair just has to repeat, though the letters can be the same.
Ex:
this one has xx twice so I want to keep this string:
xxhgfhdeifhjfrikfoixx
this one would be kept as well, because hd is repeated:
kwofhdbugktrkdidhdnbk
The best I got was to find the pairs: ([a-z][a-z])\1|([a-z])\2
I need to find which pairs repeat in the string.`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/