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<?php $string = preg_quote("\u00a0"); echo preg_replace('#(?:^[^\uL]*)|(?:[^\uL]*$)#u','',$string);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_replace(): Compilation failed: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u at offset 8 in /in/eqEuE on line 3

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