Function escapeValue

src/java/frameworks/java_opts.go:206–224

escapeValue escapes a string for shell safety using Ruby's escape_value method Ruby source: lib/java_buildpack/framework/java_opts.rb:61-67 str.gsub(%r{([^A-Za-z0-9_\-.,:/@\n$\\])}, '\\\\\\1').gsub(/\n/, "'\n'") Safe chars (not escaped): A-Za-z0-9_-.,:/@$\ All other chars are backslash-escaped,

(value string)

// Safe chars (not escaped): A-Za-z0-9_-.,:/@$\
// All other chars are backslash-escaped, including: = ( ) [ ] { } ; & | space % etc.
func escapeValue(value string) string {
	if value == "" {
		return "''"
	}

	var result strings.Builder
	for _, ch := range value {
		if ch == '\n' {
			result.WriteString("'\n'") // Special newline handling
			continue
		}

		if !isRubySafeChar(ch) {
			result.WriteRune('\\')
		}
		result.WriteRune(ch)
	}
	return result.String()
}

// isRubySafeChar checks if a character is in Ruby's safe set: A-Za-z0-9_-.,:/@\n$\
// Note: '=' is NOT safe and will be escaped