semantic-lex-number-expression

semantic-lex-number-expression is a variable defined in `lex.el'.
Its value is

"\\(\\<[0-9]+[.][0-9]+\\([eE][-+]?[0-9]+\\)?[fFdD]?\\>\\|\\<[0-9]+[.][eE][-+]?[0-9]+[fFdD]?\\>\\|\\<[0-9]+[.][fFdD]\\>\\|\\<[0-9]+[.]\\|[.][0-9]+\\([eE][-+]?[0-9]+\\)?[fFdD]?\\>\\|\\<[0-9]+[eE][-+]?[0-9]+[fFdD]?\\>\\|\\<0[xX][0-9a-fA-F]+[lL]?\\>\\|\\<[0-9]+[lLfFdD]?\\>\\)"

• Automatically becomes buffer-local when set.

Documentation:
Regular expression for matching a number.
If this value is nil, no number extraction is done during lex.
This expression tries to match C and Java like numbers.

DECIMAL_LITERAL:
[1-9][0-9]*
;
HEX_LITERAL:
0[xX][0-9a-fA-F]+
;
OCTAL_LITERAL:
0[0-7]*
;
INTEGER_LITERAL:
[lL]?
| [lL]?
| [lL]?
;
EXPONENT:
[eE][+-]?[09]+
;
FLOATING_POINT_LITERAL:
[0-9]+[.][0-9]*?[fFdD]?
| [.][0-9]+?[fFdD]?
| [0-9]+[fFdD]?
| [0-9]+?[fFdD]
;