package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`@(\"[\w\s]+\")|(?!@(\w+)@(\w+))@(\w+)`)
var str = `There is @key1 apples on the table.
There is @"key1" apples on the table.
There is @key 4 apples on the table.
There is @"key 4" apples on the table.
There is @key@key2 apples on the table.
There is @key3 apples on the table. (second step)
There is @"key @"key3"" apples on the table.
There is @"key 4" apples on the table. (second step)
There is @"key @key3" apples on the table.
There is @"key 4" apples on the table. (second step)
There is @"key @key3 " apples on the table.
There is @"key 4 " apples on the table. (second step)
There is @"key @"key3@key7"" apples on the table.
There is @"key @"key32"" apples on the table. (second step)
There is @"key 21" apples on the table. (3rd step)
There is @key@key2@key3@key4 apples on the table.
There is @key@key2@key35 apples on the table. (second step)
There is @key@key26 apples on the table. (3rd step)
There is @key7 apples on the table. (4th step)
`
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/