func minimizeMatchers(matchers []match.Matcher) []match.Matcher {
var done match.Matcher
var left, right, count int
for l := 0; l < len(matchers); l++ {
for r := len(matchers); r > l; r-- {
if glued := glueMatchers(matchers[l:r]); glued != nil {
var swap bool
if done == nil {
swap = true
} else {
cl, gl := done.Len(), glued.Len()
swap = cl > -1 && gl > -1 && gl > cl
swap = swap || count < r-l
}
if swap {
done = glued
left = l
right = r
count = r - l
}
}
}
}
if done == nil {
return matchers
}
next := append(append([]match.Matcher{}, matchers[:left]...), done)
if right < len(matchers) {
next = append(next, matchers[right:]...)
}
if len(next) == len(matchers) {
return next
}
return minimizeMatchers(next)
}
