package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?P<str_lit>(?P<begin_quote>(?P<single_quote>')|\")(?:(?(single_quote)\"|')|\\[\"']|\\[^\r\n ]|[^\"'\\\r\n])*?(?P=begin_quote))$`)
var str = `"double-quoted string"
'single-quoted string'
"unexpected EOL
'unexpected EOL
"unclosed backslash escape: \"
"properly doubled backslash: \\"
"escaped ' quotes and backslash escapes \' are \" \n allowed"
"\t\tindented code\r\n"
"invalid escape \%"
"'"
"space is not a valid backslash escape: \ "
"or newline either: \
"hopefully there aren't any edge-cases I didn't think of"
"""oh, and single-line docstrings count as three string literals, so you would have to repeat the same expression multiple times to match it"""
"""and multi-line docstrings won't match even if you repeat the expression multiple times`
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/