regex cualquier personaje
/(.*)/
GutoTrosla
/(.*)/
[a-zA-Z] //all letters
[a-z] //only lowercase letters
[A-Z] //only uppercase letters
/(.*?)/
. = any char except newline
\. = the actual dot character
.? = .{0,1} = match any char except newline zero or one times
.* = .{0,} = match any char except newline zero or more times
.+ = .{1,} = match any char except newline one or more times