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package main
import (
"fmt"
"github.com/vjeantet/grok"
)
func main() {
fmt.Println("# Default Capture :")
g, _ := grok.New()
values, _ := g.Parse("%{COMMONAPACHELOG}", `127.0.0.1 - - [23/Apr/2014:22:58:32 +0200] "GET /index.php HTTP/1.1" 404 207`)
for k, v := range values {
fmt.Printf("%+15s: %s\n", k, v)
}
fmt.Println("\n# Named Capture :")
g, _ = grok.NewWithConfig(&grok.Config{NamedCapturesOnly: true})
values, _ = g.Parse("%{COMMONAPACHELOG}", `127.0.0.1 - - [23/Apr/2014:22:58:32 +0200] "GET /index.php HTTP/1.1" 404 207`)
for k, v := range values {
fmt.Printf("%+15s: %s\n", k, v)
}
fmt.Println("\n# Add custom patterns :")
// We add 3 patterns to our Grok instance, to structure an IRC message
g, _ = grok.NewWithConfig(&grok.Config{NamedCapturesOnly: true})
g.AddPattern("IRCUSER", `\A@(\w+)`)
g.AddPattern("IRCBODY", `.*`)
g.AddPattern("IRCMSG", `%{IRCUSER:user} .* : %{IRCBODY:message}`)
values, _ = g.Parse("%{IRCMSG}", `@vjeantet said : Hello !`)
for k, v := range values {
fmt.Printf("%+15s: %s\n", k, v)
}
}
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