Match a signed real and returned the updated cursor position or undefined if no match is found
The input buffer to match against.
The cursor to test the match against.
The end point to look at in the buffer.
The end of the match or undefined if none found.
Match an unsigned real and return the updated cursor position or undefined if no match is found
The input buffer to match against.
The cursor to test the match against.
The end point to look at in the buffer.
The end of the match or undefined if none found.
DFA based parser to match a real number, including scientific.