string Concat panic

[zhangyc310]

Hi,govaluate is superising , but when I concat string , it panic.

package main
import (
    "log"
    "github.com/Knetic/govaluate"
)
func main() {
    expression, err := govaluate.NewEvaluableExpression("'http_response_body' + 'service is ok'")
    if err != nil {
        log.Printf("err1: ", err)
    }
    parameters := make(map[string]interface{}, 8)
    parameters["http_response_body"] = "service is ok"
    result, err := expression.Evaluate(parameters)
    if err != nil {
        log.Printf("err2: ", err)
    }
    log.Printf("rs: ", result)
}

[Knetic]

Thanks for the report, and the sample!

It looks as if I left the implementation for string concatenation in a git stash but accidentally committed notes about it in the readme. You hit a bug with my process, it seems.

However, a fix has been pushed, so as of 63c7fee (which is in master branch now) your code sample ought to work.

[Knetic]

I can't repro anymore, so i'm closing this bug. Let me know if you still see problems.