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This behaviour is controlled by the eval-expression-print-maximum-character variable. eval-expression-print-maximum-character is a variable defined in `simple.el'. Its value is 2305843009213693951 Original value was 127 Probably introduced at or before Emacs version 26.1. Documentation: The largest integer that will be displayed as a character. This ...


Your main confusion lies in that ^L isn't a two-characters regexp, it's an ASCII control character (page-break/ FORM FEED), that's why it appears in red in your system. on #3, if you iterate over the blanks and using M-x describe-char you'll notice that it should match either space or tab. Reasons are described in the documentation string: Regexp for ...

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