util.go

package php81

import (
	"os"
	"strings"

	"github.com/emicklei/proto"
)

func loadProto(filename string) (*proto.Proto, error) {
	reader, err := os.Open(filename)
	if err != nil {
		return nil, err
	}
	defer reader.Close()

	parser := proto.NewParser(reader)
	return parser.Parse()
}

func comment(comment *proto.Comment) string {
	if comment == nil {
		return ""
	}

	result := ""
	for _, line := range comment.Lines {
		line = strings.TrimSpace(line)
		if line == "" {
			break
		}
		result += " " + line
	}
	if len(result) > 1 {
		return result[1:]
	}
	return ""
}

func description(comment *proto.Comment) string {
	if comment == nil {
		return ""
	}

	grab := false

	result := []string{}
	for _, line := range comment.Lines {
		line = strings.TrimSpace(line)
		if line == "" {
			if grab {
				break
			}
			grab = true
			continue
		}
		if grab {
			result = append(result, line)
		}
	}
	return strings.Join(result, "\n")
}