func captureTypeFn[K any]()

in grok.go [242:275]

28 lines of code
8 McCabe index (conditional complexity)


func captureTypeFn[K any](re *regexp.Regexp, text string, conversionFn func(v, key string) (K, error)) (map[string]K, error) {
	captures := make(map[string]K)

	matches := re.FindStringSubmatch(text)
	if len(matches) == 0 {
		return captures, nil
	}

	names := re.SubexpNames()
	if len(names) == 0 {
		return captures, nil
	}

	for i, name := range names {
		if len(name) == 0 {
			continue
		}

		match := matches[i]
		if len(match) == 0 {
			continue
		}

		if conversionFn != nil {
			v, err := conversionFn(string(match), name)
			if err != nil {
				return nil, err
			}
			captures[strings.ReplaceAll(name, dotSep, ".")] = v
		}
	}

	return captures, nil
}