Pattern White Space - No
No is the designation for characters that do not qualify as whitespace under the pattern syntax rules, meaning they are not treated as ignorable separators or formatting breaks within regular expression patterns and similar parsing contexts. These characters include letters, digits, punctuation, symbols, and other non-space code points that must be explicitly matched or handled by the pattern logic. When a character has this value, it cannot be used to separate tokens or delimit parts of a pattern, so any whitespace-like appearance, such as a narrow no-break space or ideographic space, is still considered significant and part of the pattern’s content. Consequently, patterns relying on implicit whitespace ignoring will fail or behave differently with these characters, requiring explicit inclusion or exclusion in the pattern definition.