Updated unicode post with naughty strings test

src/posts/2020-05-27-unicode-support-in-go.md

@@ -5,6 +5,8 @@ date: 2020-05-27
 tags: golang
 summary: "With Go being a relatively modern programming language, first released in 2009, it is not unsurprising that it has great support for Unicode strings. What is surprising is just how far this support goes."
 ---
+_Updated 2020-05-28: Added big list of naughty strings test_
+
 
 With Go being a relatively modern programming language, first released in 2009, it is not unsurprising that it has great support for Unicode strings. What is surprising is just how far this support goes.
 
@@ -126,3 +128,61 @@ print(𝕧𝕒𝕣𝕚𝕒𝕓𝕝𝕖)
 ## In the wild
 
 I've tried to find other examples of these non-Latin Unicode characters being used in real code but have so far come up empty other than Gomega. I had assumed there'd be examples of code written in Russian or Chinese that made use of this but I can't seem to find any. Perhaps having a mix of native language variables and functions mixed with the English build in library functions isn't such a desireable outcome.
+
+
+## Update
+
+After posting this it was suggested to me to try the [big list of naughty strings](https://github.com/minimaxir/big-list-of-naughty-strings) to see how many of them Go can handle. This list is a collection of strings that often cause problems for programs in one way or another.
+
+I put together a [fairly simple test case](https://share.cluster.fun/golangnaughtystringstest.js) that used each string as a variable and then tested if the code could build. To ensure as many strings from the list could be attempted I removed all spaces from the strings.
+
+The results were a bit surprising...
+
+> 72 of the 506 strings are valid variable names in Go
+
+(Note: This number may be higher than it should be due to removing spaces from strings)
+
+Of those 72 valid strings there are some that we'd expect similar to what we covered above:
+
+* `ﷺ`
+* `𝕿𝖍𝖊𝖖𝖚𝖎𝖈𝖐𝖇𝖗𝖔𝖜𝖓𝖋𝖔𝖝𝖏𝖚𝖒𝖕𝖘𝖔𝖛𝖊𝖗𝖙𝖍𝖊𝖑𝖆𝖟𝖞𝖉𝖔𝖌`
+* `田中さんにあげて下さい`
+
+But there are a few that are really surprising:
+
+* `nil`
+* `true`
+* `false`
+
+
+So, it turns out this is a perfectly valid Go program:
+
+```go
+package main
+
+import "fmt"
+
+func main() {
+	nil := "Not a value"
+	false := 55
+
+	if !true() {
+		fmt.Println(false)
+	}
+	
+	fmt.Println(nil)
+}
+
+func true() bool {
+	return false
+}
+```
+
+When run this outputs:
+
+```
+55
+Not a value
+```
+
+Please, please, never do this in your code.