package buildstep

import (
	"regexp"
	"strings"
)

// goPosition matches a line that starts with a Go file's position, as go vet and the compiler write an error.
var goPosition = regexp.MustCompile(`^\S+\.go:\d+(:\d+)?: `)

var ansiEscape = regexp.MustCompile("\x1b\\[[0-9;]*m")

func stripANSI(s string) string { return ansiEscape.ReplaceAllString(s, "") }

// tapOk says a line is a passing test's "ok N - name", indented or not.
func tapOk(l string) bool {
	rest, ok := strings.CutPrefix(strings.TrimSpace(l), "ok ")
	return ok && rest != "" && rest[0] >= '0' && rest[0] <= '9'
}