Golang : Extract part of string with regular expression
Below is a simple example of how to extract a specific part of a string with the help of regular expression. For example, we are interested in extracting the part that starts with #$
from couple of strings such as
#$q4 revenue for 2017
revenue #$q2 for 2017
2017 revenue is #$q3
Here you go!
package main
import (
"fmt"
"regexp"
)
func main() {
str1 := "#$q4 revenue for 2017"
str2 := "revenue #$q2 for 2017"
str3 := "2017 revenue is #$q3"
// regular expression pattern
regE := regexp.MustCompile("\\#\\$q[1-4]")
fmt.Println(regE.FindAllString(str1, -1))
fmt.Println(regE.FindAllString(str2, -1))
fmt.Println(regE.FindAllString(str3, -1))
str4 := []string{str3, str1, str2}
for k, v := range str4 {
fmt.Println(k, regE.FindAllString(v, -1))
}
}
Output:
[#$q4]
[#$q2]
[#$q3]
0 [#$q3]
1 [#$q4]
2 [#$q2]
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+17.4k Golang : Example for RSA package functions
+3.8k Linux : sudo yum updates not working
+19.3k PHP : Convert(cast) int to double/float
+13.7k Golang : Missing Bazaar command
+10.7k Golang : Setup API server or gateway with Caddy and http.ListenAndServe() function example
+5.8k Golang : Find the shortest line of text example
+19.1k Golang : Secure(TLS) connection between server and client
+29.3k Golang : Interpolating or substituting variables in string examples
+6.1k Linux : How to fix Brother HL-1110 printing blank page problem
+9.5k Golang : How to delete element(data) from map ?
+12.9k Golang : convert(cast) string to float value
+12.6k Golang : How to determine if a year is leap year?