package main  import (     "regexp"     "fmt" )  func main() {     var re = regexp.MustCompile(`(?Umi)a|b|http:\\r101.cf\translate\site\regex101-com-2\zh_Hans\?checksum=d50bb94a3f56ed4c|`)     var str = `a or b, pick one! <?xml version="1.0" encoding="utf-8"?> <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Recent changes in site/regex101.com</title><link>http://r101.cf/projects/site/regex101-com-2/</link><description>All recent changes made using Weblate in site/regex101.com.</description><atom:link href="http://r101.cf/exports/rss/site/regex101-com-2/" rel="self"></atom:link><language>en</language><lastBuildDate>Fri, 31 Dec 2021 04:41:34 +0000</lastBuildDate><item><title>Translation changed</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=871d70e7806c9fa2</link><description>Translation changed at 2021-12-31 04:41:34.408225+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:41:34 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=871d70e7806c9fa2</guid></item><item><title>Translation changed</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=181cf62c95d25d14</link><description>Translation changed at 2021-12-31 04:33:53.066556+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:33:53 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=181cf62c95d25d14</guid></item><item><title>Translation changed</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=fb316aa83c8f4388</link><description>Translation changed at 2021-12-31 04:33:21.524253+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:33:21 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=fb316aa83c8f4388</guid></item><item><title>Translation changed</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=d50bb94a3f56ed4c</link><description>Translation changed at 2021-12-31 04:31:54.935295+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:31:54 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=d50bb94a3f56ed4c</guid></item><item><title>Comment added</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=d50bb94a3f56ed4c</link><description>Comment added at 2021-12-31 04:31:30.310467+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:31:30 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=d50bb94a3f56ed4c</guid></item><item><title>Translation changed</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=36e04a50ecc45cd1</link><description>Translation changed at 2021-12-31 04:29:16.113234+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:29:16 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=36e04a50ecc45cd1</guid></item><item><title>Translation changed</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=ff3f2838b9697f</link><description>Translation changed at 2021-12-31 04:17:40.594994+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:17:40 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=ff3f2838b9697f</guid></item><item><title>Translation changed</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=743134eabfcc59fa</link><description>Translation changed at 2021-12-31 04:16:39.486051+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:16:39 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=743134eabfcc59fa</guid></item><item><title>Comment added</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=743134eabfcc59fa</link><description>Comment added at 2021-12-31 04:13:50.558479+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:13:50 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=743134eabfcc59fa</guid></item><item><title>Comment added</title><link>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=6d2965e5ab37944e</link><description>Comment added at 2021-12-31 04:11:53.467905+00:00 on site/regex101.com — Chinese (Simplified) by &lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">&lt;a href="/user/Serious54088/" title="6C60"&gt;Serious54088&lt;/a&gt;</dc:creator><pubDate>Fri, 31 Dec 2021 04:11:53 +0000</pubDate><guid>http://r101.cf/translate/site/regex101-com-2/zh_Hans/?checksum=6d2965e5ab37944e</guid></item></channel></rss>  `          for i, match := range re.FindAllString(str, -1) {         fmt.Println(match, "found at index", i)     } }