Function printContent

pkg/cmd/gist/list/list.go:224–270

printContent prints a gist with optional description and content similar to `gh search code` including highlighted matches in the form: {{gist ID}} {{file name}} {{description, if any}} {{content lines with matches, if any}} If printing to a non-TTY stream the format will be the sam

(io *iostreams.IOStreams, gists []shared.Gist, filter *regexp.Regexp)

//
// If printing to a non-TTY stream the format will be the same but without highlights.
func printContent(io *iostreams.IOStreams, gists []shared.Gist, filter *regexp.Regexp) error {
	const tab string = "    "
	cs := io.ColorScheme()

	out := &strings.Builder{}
	var filename, description string
	var err error
	split := func(r rune) bool {
		return r == '\n' || r == '\r'
	}

	for _, gist := range gists {
		for _, file := range gist.Files {
			matched := false
			out.Reset()

			if filename, err = highlightMatch(file.Filename, filter, &matched, cs.Green, cs.Highlight); err != nil {
				return err
			}
			fmt.Fprintln(out, cs.Blue(gist.ID), filename)

			if gist.Description != "" {
				if description, err = highlightMatch(gist.Description, filter, &matched, cs.Bold, cs.Highlight); err != nil {
					return err
				}
				fmt.Fprintf(out, "%s%s\n", tab, description)
			}

			if file.Content != "" {
				for line := range strings.FieldsFuncSeq(file.Content, split) {
					if filter.MatchString(line) {
						if line, err = highlightMatch(line, filter, &matched, normal, cs.Highlight); err != nil {
							return err
						}
						fmt.Fprintf(out, "%[1]s%[1]s%[2]s\n", tab, line)
					}
				}
			}

			if matched {
				fmt.Fprintln(io.Out, out.String())
			}
		}
	}

	return nil
}

func highlightMatch(s string, filter *regexp.Regexp, matched *bool, color, highlight func(string) string) (string, error) {
	matches := filter.FindAllStringIndex(s, -1)