英文:
How to use word boundry (\b) with regexp.MatchString() in go
问题
我正在使用regexp.matchString()函数来匹配正则表达式模式到我的字符串。为了找到精确匹配，我必须使用单词边界。例如，我想匹配"compute"但不匹配"computer"。问题是我的字符串中既有"compute"又有"computer"。所以我想使用单词边界。我尝试在几个在线的go-regex测试器中使用\b，它起作用了。然而，\b似乎在regexp.matchString()函数中不起作用。有人知道是否有替代\b的方法吗？或者我该如何获得期望的结果？
我的代码：
package main
import "fmt"
import "regexp"
func main() {
fmt.Println("Hello, playground")
brandName := "home;compute furniture;computer"
filterVal := "(?i)compute\b"
regexMatch, _ := regexp.MatchString(filterVal, brandName)
fmt.Println(regexMatch)
}
当我使用\b时，这个函数返回false。请帮忙解决。
英文:
I am using a function regexp.matchString() to match regex pattern to my string. I have to use word boundary in order to find exact match. For example, I want to match "compute" but not "computer". The problem is my string will have both "compute" and "computer". So I want to use word boundary. I tried using \b in couple of online go-regex tester and it worked. However, \b does not seem to work for regexp.matchString() function. Does anyone know if there is an alternate to \b? or how can I get expected result?
My code
package main
import "fmt"
import "regexp"
func main() {
fmt.Println("Hello, playground")
brandName := "home;compute furniture;computer"
filterVal := "(?i)compute\b"
regexMatch, _ := regexp.MatchString(filterVal, brandName)
fmt.Println(regexMatch)
}
This function returns me false when I use \b. Please help
答案1
得分: 6
双引号经常会吞噬 \。在处理正则表达式、SQL等情况下，始终使用原始字符串。
filterVal := `(?i)compute\b`
Playground: http://play.golang.org/p/ePzZf5uLtw.
英文:
Double quotes often swallow the \. Always use raw strings with regexps, SQL, and such.
filterVal := `(?i)compute\b`
Playground: http://play.golang.org/p/ePzZf5uLtw.
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