func cleanListing()

in gotypes/weave.go [151:181]

• 26 lines of code
• 10 McCabe index (conditional complexity)

func cleanListing(text string) string {
	lines := strings.Split(text, "\n")

	// remove minimum number of leading tabs from all non-blank lines
	tabs := 999
	for i, line := range lines {
		if strings.TrimSpace(line) == "" {
			lines[i] = ""
		} else {
			if n := leadingTabs(line); n < tabs {
				tabs = n
			}
		}
	}
	for i, line := range lines {
		if line != "" {
			line := line[tabs:]
			lines[i] = line // remove leading tabs
		}
	}

	// remove leading blank lines
	for len(lines) > 0 && lines[0] == "" {
		lines = lines[1:]
	}
	// remove trailing blank lines
	for len(lines) > 0 && lines[len(lines)-1] == "" {
		lines = lines[:len(lines)-1]
	}
	return strings.Join(lines, "\n")
}