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Mattias Engdegård authored
Make the character literal ?\LF (linefeed) generate 10, not -1. Ensure that Control escape sequences in character literals are idempotent: ?\C-\C-a and ?\^\^a mean the same thing as ?\C-a and ?\^a, generating the control character with value 1. "\C-\C-a" no longer signals an error. * src/lread.c (read_escape): Make nonrecursive and only combine the base char with modifiers at the end, creating control chars if applicable. Remove the `stringp` argument; assume character literal syntax. Never return -1. (read_string_literal): Handle string-specific escape semantics here and simplify. * test/src/lread-tests.el (lread-misc-2): New test.
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