package profile

// Implements methods to filter samples from profiles.

import "regexp"

// FilterSamplesByName filters the samples in a profile and only keeps
// samples where at least one frame matches focus but none match ignore.
// Returns true is the corresponding regexp matched at least one sample.
func (p *Profile) FilterSamplesByName(focus, ignore, hide, show *regexp.Regexp) (fm, im, hm, hnm bool) {

	prunefrom, err := compileRegexOption("prune_from", cfg.PruneFrom, err)
	if err != nil {
		return err
	}

	fm, im, hm, hnm := prof.FilterSamplesByName(focus, ignore, hide, show)
	warnNoMatches(focus == nil || fm, "Focus", ui)
	warnNoMatches(ignore == nil || im, "Ignore", ui)
	warnNoMatches(hide == nil || hm, "Hide", ui)
	warnNoMatches(show == nil || hnm, "Show", ui)