Function shellSplit

src/java/frameworks/java_opts.go:116–170

shellSplit splits a string like a shell would, respecting quotes Similar to Ruby's Shellwords.shellsplit

(input string)

// shellSplit splits a string like a shell would, respecting quotes
// Similar to Ruby's Shellwords.shellsplit
func shellSplit(input string) ([]string, error) {
	var tokens []string
	var current strings.Builder
	var inSingleQuote, inDoubleQuote bool
	var escaped bool

	for _, r := range input {
		// Handle escape sequences
		if escaped {
			current.WriteRune(r)
			escaped = false
			continue
		}

		if r == '\\' {
			escaped = true
			continue
		}

		// Handle quotes
		if r == '\'' && !inDoubleQuote {
			inSingleQuote = !inSingleQuote
			continue
		}

		if r == '"' && !inSingleQuote {
			inDoubleQuote = !inDoubleQuote
			continue
		}

		// Handle spaces (word separators when not quoted)
		if unicode.IsSpace(r) && !inSingleQuote && !inDoubleQuote {
			if current.Len() > 0 {
				tokens = append(tokens, current.String())
				current.Reset()
			}
			continue
		}

		// Regular character
		current.WriteRune(r)
	}

	// Add last token if exists
	if current.Len() > 0 {
		tokens = append(tokens, current.String())
	}

	// Check for unclosed quotes
	if inSingleQuote || inDoubleQuote {
		return nil, fmt.Errorf("unclosed quote in string: %s", input)
	}

	return tokens, nil
}

// rubyStyleEscape escapes a Java option exactly like the Ruby buildpack
//