runtime(java): Improve the recognition of literals (#14120) Commit: https://github.com/vim/vim/commit/100a665634a0a2edbc755daf453c4915800684dd Author: Aliaksei Budavei <32549825+zzzyxwvut@users.noreply.github.com> Date: Sat Mar 2 01:11:14 2024 +0300 runtime(java): Improve the recognition of literals (https://github.com/vim/vim/issues/14120) * Emend the Unicode and octal escape sequence patterns; * Accept the (repeated) underscore separators in all numerical literals; * Recognise hexadecimal floating-point literals. (The space escape sequence '\s' will be introduced along with text blocks in another PR.) References: https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.3 https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.10.1 https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.10.2 https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.10.7 Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>