Script - Code for unwritten documents

Code for unwritten documents is a special Script value designated for characters that lack a consistent written tradition, such as symbols for ancient or undeciphered scripts, technical notation, or placeholder glyphs. This value, often labeled as “Unknown” or “Common” in some contexts, ensures that characters not tied to a specific writing system are handled consistently in text processing, sorting, and rendering. It prevents misclassification by assigning a neutral script category, allowing software to apply fallback fonts or generic typographic rules without assuming a particular language origin. This value is essential for robust internationalization, as it covers mathematical operators, punctuation, and invented or provisional signs that do not belong to any established script, thereby preserving data integrity when processing mixed or incomplete textual content.